From 88a12e486f35f4c6a191446dcf6162a494b9e13c Mon Sep 17 00:00:00 2001 From: josdejong Date: Thu, 20 Feb 2014 18:25:39 +0100 Subject: [PATCH] Fixed ./dist folder being ignored (needed for bower) --- .gitignore | 1 - dist/img/graph/acceptDeleteIcon.png | Bin 0 -> 20675 bytes dist/img/graph/addNodeIcon.png | Bin 0 -> 20998 bytes dist/img/graph/backIcon.png | Bin 0 -> 20802 bytes dist/img/graph/connectIcon.png | Bin 0 -> 20764 bytes dist/img/graph/cross.png | Bin 0 -> 18303 bytes dist/img/graph/cross2.png | Bin 0 -> 17768 bytes dist/img/graph/deleteIcon.png | Bin 0 -> 20981 bytes dist/img/graph/downArrow.png | Bin 0 -> 4460 bytes dist/img/graph/editIcon.png | Bin 0 -> 21016 bytes dist/img/graph/leftArrow.png | Bin 0 -> 4531 bytes dist/img/graph/minus.png | Bin 0 -> 4147 bytes dist/img/graph/plus.png | Bin 0 -> 4341 bytes dist/img/graph/rightArrow.png | Bin 0 -> 4514 bytes dist/img/graph/upArrow.png | Bin 0 -> 4461 bytes dist/img/graph/zoomExtends.png | Bin 0 -> 4464 bytes dist/vis.js | 22279 ++++++++++++++++++++++++++ dist/vis.min.js | 32 + 18 files changed, 22311 insertions(+), 1 deletion(-) create mode 100644 dist/img/graph/acceptDeleteIcon.png create mode 100644 dist/img/graph/addNodeIcon.png create mode 100644 dist/img/graph/backIcon.png create mode 100644 dist/img/graph/connectIcon.png create mode 100644 dist/img/graph/cross.png create mode 100644 dist/img/graph/cross2.png create mode 100644 dist/img/graph/deleteIcon.png create mode 100644 dist/img/graph/downArrow.png create mode 100644 dist/img/graph/editIcon.png create mode 100644 dist/img/graph/leftArrow.png create mode 100644 dist/img/graph/minus.png create mode 100644 dist/img/graph/plus.png create mode 100644 dist/img/graph/rightArrow.png create mode 100644 dist/img/graph/upArrow.png create mode 100644 dist/img/graph/zoomExtends.png create mode 100644 dist/vis.js create mode 100644 dist/vis.min.js diff --git a/.gitignore b/.gitignore index df8fb4e6..b6a487c8 100644 --- a/.gitignore +++ b/.gitignore @@ -5,4 +5,3 @@ node_modules .settings/org.eclipse.wst.jsdt.ui.superType.container .settings/org.eclipse.wst.jsdt.ui.superType.name npm-debug.log -dist/ diff --git a/dist/img/graph/acceptDeleteIcon.png b/dist/img/graph/acceptDeleteIcon.png new file mode 100644 index 0000000000000000000000000000000000000000..02a062852c2a8ea7610b64f5d6f79ce4953c3b42 GIT binary patch literal 20675 zcmeI43p|tU|Hp4BXOa|>o}q-yj>hJ^&6%7-RA!r5Y-5%=l;}i9NeGeZkyBKZk`Ck; zAv&leiIP0@TI8t#qC#L`gixC>Y z2nN~UaG+o&!=D;N27vG18rrJjvbOQ6 zCm%0yu3BVaF<-eMJ6`zEp_l_poOPu3NjwtmQ$2NP=jr%;jh}j=P6s}`Hu0+Y%cTyJ z{6*n#tPBQZ#Y#!4p;PKYz+|+M(HgZ% z(HnqJ_&rH6pwc0u61qHYdf^*vnvYP-E}=?RqJf=Qj67f#c?f$3FtZej$vmdv3S`d* ze4B`Vy?_%K@Lj$A)jc34b22ST2=G3tx3wlIDZ+aY>|~L0mP&LsB`>oEnt2W;M<_C9uDkE1LQ47JdED0DVFWm=8#G& zF)Ck)wuto>1BZxuc<8RsY_U;TBab4?Bcz+@-ik<5g2y5kJ|DdU0NII4IA=RL72YCK z+|q(NR3@_t{N|>}w3?q^@0XXYg~4V3(8G#u`=SFWT^3^~5<~lPYSr-kfQ^#bTPF7V zmn<~91Y{39@fZ!}vavXMxcu?smwkPYY-_OIghr2TUnsXWReDSXeTX*tJTdTJQQ(L~*SuW%dKK;NbJV$LW z_J~&Ps`hEpi*B7y!Y18%!1>K4LQ#p}ybVO*_japgJz146CIDchf>Cu}Q%pD}U}sM& zd-|>ElvVaBAjaS3NC*II#IMwKYb-Ub7Xtu%cC7Y!bLFurMV(5KEB*bPm{)6fC2A%l(Rsaqz;A1hK3t&1x@G6rofWRwJ5Fr9z@9G`Yf&kV zn$O092rJC3J?%Z$KC;dOEnkUT^h8`=TzHrBt<`Etd3F~yt}gmeqv!{R#d%ums6UiT zSPYSkipSOHuaw)1gRd?>JkRFBuWs#f?UwCy7xe+1{0yY^GWDd}Pe_3!qUfVKpfwG< z`!f5g`w)G~eX1kg5}AHxA-_(#zR+}O+-$4#QuZbCr3m>L+}!bcjftBbmlSFBCF>(SmcVD&onweT2Q zN_x+do%Qh)O{EM)QALUpTk+g6`!h=S_AAx9LG@vS$NJM2rZL<-wac`(E=g>ZNVZMZ zNLJQ{xaAj|DR@>O=|1Y-t)o5I3e!MkIyW-fCO2vNT zg8Y+c9KsgiQR*^!)ZbLJ_gKi}an@S#e$Cv}(dd28#W3ucSxz8f5_kUcz4Kn36Mf;dLZYAX@QYy7lq*JOz(Wq80gkhut zsqcK}jN4FchRY!&6H1toqk|>&~o7cYMoE-%3fL>t?smjh=!_$ox>Z4;dB>= z@-tdz4DAi=>znU1pK5-Xrk7z1>wx!X^k;NrbYJ#eAHH6vEU)Ye*`}m#{TZ*}vTO9+ z>(O30p6=^6lv);L7Oi?%QB;w;D7SoV(%QnThm`8`@5*kM+@w`Q&2-JUXGKwL~&$7)8_rrq7R?dsE{>B#9eAU9@} z5Jh-zta+^Wyib#nTUBo!GR1U~-fN7Kh~1i zLY3L=6#e?)T~Wd-!v5-LsnxsVc6;nGJro@8xvUMAs>g17iVN+=f5fNYpJh;Bj_7k> zTRm-)0^Q9t*c#(q6gjR{ya1q_agI!WN(zhF-XIP z;E0ngx5jqoF3s1K)4`;e*~hOnIQqM}tajeg1FJ?BvsWFGh`6P4i=qZ;L$$>}!ue>g zSUX~^?GSn7x5R6D5i4sEIXW-PcdgDpe9d0kzAFQhwKP2pM1vb+uETa7Njw~aEl_nx zDxKWJ^XJr?`=e< z6lSey9=cQ7*m+q0_}dfHLvpv|dXALk?6LCzt9ZV;es(ju#3&@9Q=)gtf;D^AiJUdM zvad{=_Q0`l$Ro8l`npD>LtyO2s>U5vmxKZbCEX=n?%p=|v}0(4qbJ0x`x4>fo=jzv zC42W3%XccIF4_J_^J(}?c zQM!BG#i8-{7M+mPX3fruon^T4(>IN-TqEb+ZfQ0&b^FzA%vk(glX~Kf`Q4DPqYn1YiS`v^}_AKQ=;lJ zWgX@BAE>k&ySXGhTr+4TQ~%42FPU%IU}==J`@!RNFVuta5q$#_;@uM~q%lvz4n&>p z5xw_Imf3p$EUKT_(!F^hC7mx9dtC8I zKZn^wd&7ET^d;$@V|~T(iuB@gpTP3r$m^G){3iyKv-DfK#;!-aTRQ#lK^EG$>-uOU zW1@CqynAU^G;{S-OH;*T_UhrHYmV18jhPLZKgM;%JuvnD^7PT$r`tDIva?6qo?1C2>4qA#OoJT0+wv={nEQeHyA_KV_@DJ>9*~v2QDAyXJJj zhYRDbcXK}_DJ3OM&lf&6`k9CTcLIR94Asq(<>_FLAu?#X1QNrKtQ$@X<`kj;U}PE| zOdtl5Ss*_$g-SP8ds}f+4MZgwt9j@-Kplc{#s8AwEv)J#nzjKVP- z0UDV_0EN?n=%JW!W3{ik7>> z1Qvto#$W`Q%q-U*7h;_2Fij6Coy1^=Y8gR(_WrSEeh88A1QywZv!;tQ!I{5P@bw$nIr8A0u4Eb5w2*S<%LDc_-2?!;G{d@Q=%u!HtIMM=! 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zNpRo3eGn0Ru;G=b1X86$Ls{nUyicrn(uenUNVoYHmaP<>> 0; + + // 4. If IsCallable(callback) is false, throw a TypeError exception. + // See: http://es5.github.com/#x9.11 + if (typeof callback !== "function") { + throw new TypeError(callback + " is not a function"); + } + + // 5. If thisArg was supplied, let T be thisArg; else let T be undefined. + if (thisArg) { + T = thisArg; + } + + // 6. Let A be a new array created as if by the expression new Array(len) where Array is + // the standard built-in constructor with that name and len is the value of len. + A = new Array(len); + + // 7. Let k be 0 + k = 0; + + // 8. Repeat, while k < len + while(k < len) { + + var kValue, mappedValue; + + // a. Let Pk be ToString(k). + // This is implicit for LHS operands of the in operator + // b. Let kPresent be the result of calling the HasProperty internal method of O with argument Pk. + // This step can be combined with c + // c. If kPresent is true, then + if (k in O) { + + // i. Let kValue be the result of calling the Get internal method of O with argument Pk. + kValue = O[ k ]; + + // ii. Let mappedValue be the result of calling the Call internal method of callback + // with T as the this value and argument list containing kValue, k, and O. + mappedValue = callback.call(T, kValue, k, O); + + // iii. Call the DefineOwnProperty internal method of A with arguments + // Pk, Property Descriptor {Value: mappedValue, : true, Enumerable: true, Configurable: true}, + // and false. + + // In browsers that support Object.defineProperty, use the following: + // Object.defineProperty(A, Pk, { value: mappedValue, writable: true, enumerable: true, configurable: true }); + + // For best browser support, use the following: + A[ k ] = mappedValue; + } + // d. Increase k by 1. + k++; + } + + // 9. return A + return A; + }; +} + +// Internet Explorer 8 and older does not support Array.filter, so we define it +// here in that case. +// https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Array/filter +if (!Array.prototype.filter) { + Array.prototype.filter = function(fun /*, thisp */) { + "use strict"; + + if (this == null) { + throw new TypeError(); + } + + var t = Object(this); + var len = t.length >>> 0; + if (typeof fun != "function") { + throw new TypeError(); + } + + var res = []; + var thisp = arguments[1]; + for (var i = 0; i < len; i++) { + if (i in t) { + var val = t[i]; // in case fun mutates this + if (fun.call(thisp, val, i, t)) + res.push(val); + } + } + + return res; + }; +} + + +// Internet Explorer 8 and older does not support Object.keys, so we define it +// here in that case. +// https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Object/keys +if (!Object.keys) { + Object.keys = (function () { + var hasOwnProperty = Object.prototype.hasOwnProperty, + hasDontEnumBug = !({toString: null}).propertyIsEnumerable('toString'), + dontEnums = [ + 'toString', + 'toLocaleString', + 'valueOf', + 'hasOwnProperty', + 'isPrototypeOf', + 'propertyIsEnumerable', + 'constructor' + ], + dontEnumsLength = dontEnums.length; + + return function (obj) { + if (typeof obj !== 'object' && typeof obj !== 'function' || obj === null) { + throw new TypeError('Object.keys called on non-object'); + } + + var result = []; + + for (var prop in obj) { + if (hasOwnProperty.call(obj, prop)) result.push(prop); + } + + if (hasDontEnumBug) { + for (var i=0; i < dontEnumsLength; i++) { + if (hasOwnProperty.call(obj, dontEnums[i])) result.push(dontEnums[i]); + } + } + return result; + } + })() +} + +// Internet Explorer 8 and older does not support Array.isArray, +// so we define it here in that case. +// https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Array/isArray +if(!Array.isArray) { + Array.isArray = function (vArg) { + return Object.prototype.toString.call(vArg) === "[object Array]"; + }; +} + +// Internet Explorer 8 and older does not support Function.bind, +// so we define it here in that case. +// https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Function/bind +if (!Function.prototype.bind) { + Function.prototype.bind = function (oThis) { + if (typeof this !== "function") { + // closest thing possible to the ECMAScript 5 internal IsCallable function + throw new TypeError("Function.prototype.bind - what is trying to be bound is not callable"); + } + + var aArgs = Array.prototype.slice.call(arguments, 1), + fToBind = this, + fNOP = function () {}, + fBound = function () { + return fToBind.apply(this instanceof fNOP && oThis + ? this + : oThis, + aArgs.concat(Array.prototype.slice.call(arguments))); + }; + + fNOP.prototype = this.prototype; + fBound.prototype = new fNOP(); + + return fBound; + }; +} + +// https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Object/create +if (!Object.create) { + Object.create = function (o) { + if (arguments.length > 1) { + throw new Error('Object.create implementation only accepts the first parameter.'); + } + function F() {} + F.prototype = o; + return new F(); + }; +} + +// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/bind +if (!Function.prototype.bind) { + Function.prototype.bind = function (oThis) { + if (typeof this !== "function") { + // closest thing possible to the ECMAScript 5 internal IsCallable function + throw new TypeError("Function.prototype.bind - what is trying to be bound is not callable"); + } + + var aArgs = Array.prototype.slice.call(arguments, 1), + fToBind = this, + fNOP = function () {}, + fBound = function () { + return fToBind.apply(this instanceof fNOP && oThis + ? this + : oThis, + aArgs.concat(Array.prototype.slice.call(arguments))); + }; + + fNOP.prototype = this.prototype; + fBound.prototype = new fNOP(); + + return fBound; + }; +} + +/** + * utility functions + */ +var util = {}; + +/** + * Test whether given object is a number + * @param {*} object + * @return {Boolean} isNumber + */ +util.isNumber = function isNumber(object) { + return (object instanceof Number || typeof object == 'number'); +}; + +/** + * Test whether given object is a string + * @param {*} object + * @return {Boolean} isString + */ +util.isString = function isString(object) { + return (object instanceof String || typeof object == 'string'); +}; + +/** + * Test whether given object is a Date, or a String containing a Date + * @param {Date | String} object + * @return {Boolean} isDate + */ +util.isDate = function isDate(object) { + if (object instanceof Date) { + return true; + } + else if (util.isString(object)) { + // test whether this string contains a date + var match = ASPDateRegex.exec(object); + if (match) { + return true; + } + else if (!isNaN(Date.parse(object))) { + return true; + } + } + + return false; +}; + +/** + * Test whether given object is an instance of google.visualization.DataTable + * @param {*} object + * @return {Boolean} isDataTable + */ +util.isDataTable = function isDataTable(object) { + return (typeof (google) !== 'undefined') && + (google.visualization) && + (google.visualization.DataTable) && + (object instanceof google.visualization.DataTable); +}; + +/** + * Create a semi UUID + * source: http://stackoverflow.com/a/105074/1262753 + * @return {String} uuid + */ +util.randomUUID = function randomUUID () { + var S4 = function () { + return Math.floor( + Math.random() * 0x10000 /* 65536 */ + ).toString(16); + }; + + return ( + S4() + S4() + '-' + + S4() + '-' + + S4() + '-' + + S4() + '-' + + S4() + S4() + S4() + ); +}; + +/** + * Extend object a with the properties of object b or a series of objects + * Only properties with defined values are copied + * @param {Object} a + * @param {... Object} b + * @return {Object} a + */ +util.extend = function (a, b) { + for (var i = 1, len = arguments.length; i < len; i++) { + var other = arguments[i]; + for (var prop in other) { + if (other.hasOwnProperty(prop) && other[prop] !== undefined) { + a[prop] = other[prop]; + } + } + } + + return a; +}; + +/** + * Convert an object to another type + * @param {Boolean | Number | String | Date | Moment | Null | undefined} object + * @param {String | undefined} type Name of the type. Available types: + * 'Boolean', 'Number', 'String', + * 'Date', 'Moment', ISODate', 'ASPDate'. + * @return {*} object + * @throws Error + */ +util.convert = function convert(object, type) { + var match; + + if (object === undefined) { + return undefined; + } + if (object === null) { + return null; + } + + if (!type) { + return object; + } + if (!(typeof type === 'string') && !(type instanceof String)) { + throw new Error('Type must be a string'); + } + + //noinspection FallthroughInSwitchStatementJS + switch (type) { + case 'boolean': + case 'Boolean': + return Boolean(object); + + case 'number': + case 'Number': + return Number(object.valueOf()); + + case 'string': + case 'String': + return String(object); + + case 'Date': + if (util.isNumber(object)) { + return new Date(object); + } + if (object instanceof Date) { + return new Date(object.valueOf()); + } + else if (moment.isMoment(object)) { + return new Date(object.valueOf()); + } + if (util.isString(object)) { + match = ASPDateRegex.exec(object); + if (match) { + // object is an ASP date + return new Date(Number(match[1])); // parse number + } + else { + return moment(object).toDate(); // parse string + } + } + else { + throw new Error( + 'Cannot convert object of type ' + util.getType(object) + + ' to type Date'); + } + + case 'Moment': + if (util.isNumber(object)) { + return moment(object); + } + if (object instanceof Date) { + return moment(object.valueOf()); + } + else if (moment.isMoment(object)) { + return moment(object); + } + if (util.isString(object)) { + match = ASPDateRegex.exec(object); + if (match) { + // object is an ASP date + return moment(Number(match[1])); // parse number + } + else { + return moment(object); // parse string + } + } + else { + throw new Error( + 'Cannot convert object of type ' + util.getType(object) + + ' to type Date'); + } + + case 'ISODate': + if (util.isNumber(object)) { + return new Date(object); + } + else if (object instanceof Date) { + return object.toISOString(); + } + else if (moment.isMoment(object)) { + return object.toDate().toISOString(); + } + else if (util.isString(object)) { + match = ASPDateRegex.exec(object); + if (match) { + // object is an ASP date + return new Date(Number(match[1])).toISOString(); // parse number + } + else { + return new Date(object).toISOString(); // parse string + } + } + else { + throw new Error( + 'Cannot convert object of type ' + util.getType(object) + + ' to type ISODate'); + } + + case 'ASPDate': + if (util.isNumber(object)) { + return '/Date(' + object + ')/'; + } + else if (object instanceof Date) { + return '/Date(' + object.valueOf() + ')/'; + } + else if (util.isString(object)) { + match = ASPDateRegex.exec(object); + var value; + if (match) { + // object is an ASP date + value = new Date(Number(match[1])).valueOf(); // parse number + } + else { + value = new Date(object).valueOf(); // parse string + } + return '/Date(' + value + ')/'; + } + else { + throw new Error( + 'Cannot convert object of type ' + util.getType(object) + + ' to type ASPDate'); + } + + default: + throw new Error('Cannot convert object of type ' + util.getType(object) + + ' to type "' + type + '"'); + } +}; + +// parse ASP.Net Date pattern, +// for example '/Date(1198908717056)/' or '/Date(1198908717056-0700)/' +// code from http://momentjs.com/ +var ASPDateRegex = /^\/?Date\((\-?\d+)/i; + +/** + * Get the type of an object, for example util.getType([]) returns 'Array' + * @param {*} object + * @return {String} type + */ +util.getType = function getType(object) { + var type = typeof object; + + if (type == 'object') { + if (object == null) { + return 'null'; + } + if (object instanceof Boolean) { + return 'Boolean'; + } + if (object instanceof Number) { + return 'Number'; + } + if (object instanceof String) { + return 'String'; + } + if (object instanceof Array) { + return 'Array'; + } + if (object instanceof Date) { + return 'Date'; + } + return 'Object'; + } + else if (type == 'number') { + return 'Number'; + } + else if (type == 'boolean') { + return 'Boolean'; + } + else if (type == 'string') { + return 'String'; + } + + return type; +}; + +/** + * Retrieve the absolute left value of a DOM element + * @param {Element} elem A dom element, for example a div + * @return {number} left The absolute left position of this element + * in the browser page. + */ +util.getAbsoluteLeft = function getAbsoluteLeft (elem) { + var doc = document.documentElement; + var body = document.body; + + var left = elem.offsetLeft; + var e = elem.offsetParent; + while (e != null && e != body && e != doc) { + left += e.offsetLeft; + left -= e.scrollLeft; + e = e.offsetParent; + } + return left; +}; + +/** + * Retrieve the absolute top value of a DOM element + * @param {Element} elem A dom element, for example a div + * @return {number} top The absolute top position of this element + * in the browser page. + */ +util.getAbsoluteTop = function getAbsoluteTop (elem) { + var doc = document.documentElement; + var body = document.body; + + var top = elem.offsetTop; + var e = elem.offsetParent; + while (e != null && e != body && e != doc) { + top += e.offsetTop; + top -= e.scrollTop; + e = e.offsetParent; + } + return top; +}; + +/** + * Get the absolute, vertical mouse position from an event. + * @param {Event} event + * @return {Number} pageY + */ +util.getPageY = function getPageY (event) { + if ('pageY' in event) { + return event.pageY; + } + else { + var clientY; + if (('targetTouches' in event) && event.targetTouches.length) { + clientY = event.targetTouches[0].clientY; + } + else { + clientY = event.clientY; + } + + var doc = document.documentElement; + var body = document.body; + return clientY + + ( doc && doc.scrollTop || body && body.scrollTop || 0 ) - + ( doc && doc.clientTop || body && body.clientTop || 0 ); + } +}; + +/** + * Get the absolute, horizontal mouse position from an event. + * @param {Event} event + * @return {Number} pageX + */ +util.getPageX = function getPageX (event) { + if ('pageY' in event) { + return event.pageX; + } + else { + var clientX; + if (('targetTouches' in event) && event.targetTouches.length) { + clientX = event.targetTouches[0].clientX; + } + else { + clientX = event.clientX; + } + + var doc = document.documentElement; + var body = document.body; + return clientX + + ( doc && doc.scrollLeft || body && body.scrollLeft || 0 ) - + ( doc && doc.clientLeft || body && body.clientLeft || 0 ); + } +}; + +/** + * add a className to the given elements style + * @param {Element} elem + * @param {String} className + */ +util.addClassName = function addClassName(elem, className) { + var classes = elem.className.split(' '); + if (classes.indexOf(className) == -1) { + classes.push(className); // add the class to the array + elem.className = classes.join(' '); + } +}; + +/** + * add a className to the given elements style + * @param {Element} elem + * @param {String} className + */ +util.removeClassName = function removeClassname(elem, className) { + var classes = elem.className.split(' '); + var index = classes.indexOf(className); + if (index != -1) { + classes.splice(index, 1); // remove the class from the array + elem.className = classes.join(' '); + } +}; + +/** + * For each method for both arrays and objects. + * In case of an array, the built-in Array.forEach() is applied. + * In case of an Object, the method loops over all properties of the object. + * @param {Object | Array} object An Object or Array + * @param {function} callback Callback method, called for each item in + * the object or array with three parameters: + * callback(value, index, object) + */ +util.forEach = function forEach (object, callback) { + var i, + len; + if (object instanceof Array) { + // array + for (i = 0, len = object.length; i < len; i++) { + callback(object[i], i, object); + } + } + else { + // object + for (i in object) { + if (object.hasOwnProperty(i)) { + callback(object[i], i, object); + } + } + } +}; + +/** + * Update a property in an object + * @param {Object} object + * @param {String} key + * @param {*} value + * @return {Boolean} changed + */ +util.updateProperty = function updateProp (object, key, value) { + if (object[key] !== value) { + object[key] = value; + return true; + } + else { + return false; + } +}; + +/** + * Add and event listener. Works for all browsers + * @param {Element} element An html element + * @param {string} action The action, for example "click", + * without the prefix "on" + * @param {function} listener The callback function to be executed + * @param {boolean} [useCapture] + */ +util.addEventListener = function addEventListener(element, action, listener, useCapture) { + if (element.addEventListener) { + if (useCapture === undefined) + useCapture = false; + + if (action === "mousewheel" && navigator.userAgent.indexOf("Firefox") >= 0) { + action = "DOMMouseScroll"; // For Firefox + } + + element.addEventListener(action, listener, useCapture); + } else { + element.attachEvent("on" + action, listener); // IE browsers + } +}; + +/** + * Remove an event listener from an element + * @param {Element} element An html dom element + * @param {string} action The name of the event, for example "mousedown" + * @param {function} listener The listener function + * @param {boolean} [useCapture] + */ +util.removeEventListener = function removeEventListener(element, action, listener, useCapture) { + if (element.removeEventListener) { + // non-IE browsers + if (useCapture === undefined) + useCapture = false; + + if (action === "mousewheel" && navigator.userAgent.indexOf("Firefox") >= 0) { + action = "DOMMouseScroll"; // For Firefox + } + + element.removeEventListener(action, listener, useCapture); + } else { + // IE browsers + element.detachEvent("on" + action, listener); + } +}; + + +/** + * Get HTML element which is the target of the event + * @param {Event} event + * @return {Element} target element + */ +util.getTarget = function getTarget(event) { + // code from http://www.quirksmode.org/js/events_properties.html + if (!event) { + event = window.event; + } + + var target; + + if (event.target) { + target = event.target; + } + else if (event.srcElement) { + target = event.srcElement; + } + + if (target.nodeType != undefined && target.nodeType == 3) { + // defeat Safari bug + target = target.parentNode; + } + + return target; +}; + +/** + * Fake a hammer.js gesture. Event can be a ScrollEvent or MouseMoveEvent + * @param {Element} element + * @param {Event} event + */ +util.fakeGesture = function fakeGesture (element, event) { + var eventType = null; + + // for hammer.js 1.0.5 + var gesture = Hammer.event.collectEventData(this, eventType, event); + + // for hammer.js 1.0.6 + //var touches = Hammer.event.getTouchList(event, eventType); + // var gesture = Hammer.event.collectEventData(this, eventType, touches, event); + + // on IE in standards mode, no touches are recognized by hammer.js, + // resulting in NaN values for center.pageX and center.pageY + if (isNaN(gesture.center.pageX)) { + gesture.center.pageX = event.pageX; + } + if (isNaN(gesture.center.pageY)) { + gesture.center.pageY = event.pageY; + } + + return gesture; +}; + +util.option = {}; + +/** + * Convert a value into a boolean + * @param {Boolean | function | undefined} value + * @param {Boolean} [defaultValue] + * @returns {Boolean} bool + */ +util.option.asBoolean = function (value, defaultValue) { + if (typeof value == 'function') { + value = value(); + } + + if (value != null) { + return (value != false); + } + + return defaultValue || null; +}; + +/** + * Convert a value into a number + * @param {Boolean | function | undefined} value + * @param {Number} [defaultValue] + * @returns {Number} number + */ +util.option.asNumber = function (value, defaultValue) { + if (typeof value == 'function') { + value = value(); + } + + if (value != null) { + return Number(value) || defaultValue || null; + } + + return defaultValue || null; +}; + +/** + * Convert a value into a string + * @param {String | function | undefined} value + * @param {String} [defaultValue] + * @returns {String} str + */ +util.option.asString = function (value, defaultValue) { + if (typeof value == 'function') { + value = value(); + } + + if (value != null) { + return String(value); + } + + return defaultValue || null; +}; + +/** + * Convert a size or location into a string with pixels or a percentage + * @param {String | Number | function | undefined} value + * @param {String} [defaultValue] + * @returns {String} size + */ +util.option.asSize = function (value, defaultValue) { + if (typeof value == 'function') { + value = value(); + } + + if (util.isString(value)) { + return value; + } + else if (util.isNumber(value)) { + return value + 'px'; + } + else { + return defaultValue || null; + } +}; + +/** + * Convert a value into a DOM element + * @param {HTMLElement | function | undefined} value + * @param {HTMLElement} [defaultValue] + * @returns {HTMLElement | null} dom + */ +util.option.asElement = function (value, defaultValue) { + if (typeof value == 'function') { + value = value(); + } + + return value || defaultValue || null; +}; + + + +util.GiveDec = function GiveDec(Hex) +{ + if(Hex == "A") + Value = 10; + else + if(Hex == "B") + Value = 11; + else + if(Hex == "C") + Value = 12; + else + if(Hex == "D") + Value = 13; + else + if(Hex == "E") + Value = 14; + else + if(Hex == "F") + Value = 15; + else + Value = eval(Hex) + return Value; +} + +util.GiveHex = function GiveHex(Dec) +{ + if(Dec == 10) + Value = "A"; + else + if(Dec == 11) + Value = "B"; + else + if(Dec == 12) + Value = "C"; + else + if(Dec == 13) + Value = "D"; + else + if(Dec == 14) + Value = "E"; + else + if(Dec == 15) + Value = "F"; + else + Value = "" + Dec; + return Value; +} + +/** + * http://www.yellowpipe.com/yis/tools/hex-to-rgb/color-converter.php + * + * @param {String} hex + * @returns {{r: *, g: *, b: *}} + */ +util.hexToRGB = function hexToRGB(hex) { + hex = hex.replace("#","").toUpperCase(); + + var a = util.GiveDec(hex.substring(0, 1)); + var b = util.GiveDec(hex.substring(1, 2)); + var c = util.GiveDec(hex.substring(2, 3)); + var d = util.GiveDec(hex.substring(3, 4)); + var e = util.GiveDec(hex.substring(4, 5)); + var f = util.GiveDec(hex.substring(5, 6)); + + var r = (a * 16) + b; + var g = (c * 16) + d; + var b = (e * 16) + f; + + return {r:r,g:g,b:b}; +}; + +util.RGBToHex = function RGBToHex(red,green,blue) { + var a = util.GiveHex(Math.floor(red / 16)); + var b = util.GiveHex(red % 16); + var c = util.GiveHex(Math.floor(green / 16)); + var d = util.GiveHex(green % 16); + var e = util.GiveHex(Math.floor(blue / 16)); + var f = util.GiveHex(blue % 16); + + var hex = a + b + c + d + e + f; + return "#" + hex; +}; + + +/** + * http://www.javascripter.net/faq/rgb2hsv.htm + * + * @param red + * @param green + * @param blue + * @returns {*} + * @constructor + */ +util.RGBToHSV = function RGBToHSV (red,green,blue) { + red=red/255; green=green/255; blue=blue/255; + var minRGB = Math.min(red,Math.min(green,blue)); + var maxRGB = Math.max(red,Math.max(green,blue)); + + // Black-gray-white + if (minRGB == maxRGB) { + return {h:0,s:0,v:minRGB}; + } + + // Colors other than black-gray-white: + var d = (red==minRGB) ? green-blue : ((blue==minRGB) ? red-green : blue-red); + var h = (red==minRGB) ? 3 : ((blue==minRGB) ? 1 : 5); + var hue = 60*(h - d/(maxRGB - minRGB))/360; + var saturation = (maxRGB - minRGB)/maxRGB; + var value = maxRGB; + return {h:hue,s:saturation,v:value}; +}; + + +/** + * https://gist.github.com/mjijackson/5311256 + * @param hue + * @param saturation + * @param value + * @returns {{r: number, g: number, b: number}} + * @constructor + */ +util.HSVToRGB = function HSVToRGB(h, s, v) { + var r, g, b; + + var i = Math.floor(h * 6); + var f = h * 6 - i; + var p = v * (1 - s); + var q = v * (1 - f * s); + var t = v * (1 - (1 - f) * s); + + switch (i % 6) { + case 0: r = v, g = t, b = p; break; + case 1: r = q, g = v, b = p; break; + case 2: r = p, g = v, b = t; break; + case 3: r = p, g = q, b = v; break; + case 4: r = t, g = p, b = v; break; + case 5: r = v, g = p, b = q; break; + } + + return {r:Math.floor(r * 255), g:Math.floor(g * 255), b:Math.floor(b * 255) }; +}; + +util.HSVToHex = function HSVToHex(h,s,v) { + var rgb = util.HSVToRGB(h,s,v); + return util.RGBToHex(rgb.r,rgb.g,rgb.b); +} + +util.hexToHSV = function hexToHSV(hex) { + var rgb = util.hexToRGB(hex); + return util.RGBToHSV(rgb.r,rgb.g,rgb.b); +} + +util.isValidHex = function isValidHex(hex) { + var isOk = /(^#[0-9A-F]{6}$)|(^#[0-9A-F]{3}$)/i.test(hex); + return isOk; +} + +/** + * DataSet + * + * Usage: + * var dataSet = new DataSet({ + * fieldId: '_id', + * convert: { + * // ... + * } + * }); + * + * dataSet.add(item); + * dataSet.add(data); + * dataSet.update(item); + * dataSet.update(data); + * dataSet.remove(id); + * dataSet.remove(ids); + * var data = dataSet.get(); + * var data = dataSet.get(id); + * var data = dataSet.get(ids); + * var data = dataSet.get(ids, options, data); + * dataSet.clear(); + * + * A data set can: + * - add/remove/update data + * - gives triggers upon changes in the data + * - can import/export data in various data formats + * + * @param {Object} [options] Available options: + * {String} fieldId Field name of the id in the + * items, 'id' by default. + * {Object.} [convert] + * {String[]} [fields] field names to be returned + * {function} [filter] filter items + * {String | function} [order] Order the items by + * a field name or custom sort function. + * {Array | DataTable} [data] If provided, items will be appended to this + * array or table. Required in case of Google + * DataTable. + * + * @throws Error + */ +DataSet.prototype.get = function (args) { + var me = this; + var globalShowInternalIds = this.showInternalIds; + + // parse the arguments + var id, ids, options, data; + var firstType = util.getType(arguments[0]); + if (firstType == 'String' || firstType == 'Number') { + // get(id [, options] [, data]) + id = arguments[0]; + options = arguments[1]; + data = arguments[2]; + } + else if (firstType == 'Array') { + // get(ids [, options] [, data]) + ids = arguments[0]; + options = arguments[1]; + data = arguments[2]; + } + else { + // get([, options] [, data]) + options = arguments[0]; + data = arguments[1]; + } + + // determine the return type + var type; + if (options && options.type) { + type = (options.type == 'DataTable') ? 'DataTable' : 'Array'; + + if (data && (type != util.getType(data))) { + throw new Error('Type of parameter "data" (' + util.getType(data) + ') ' + + 'does not correspond with specified options.type (' + options.type + ')'); + } + if (type == 'DataTable' && !util.isDataTable(data)) { + throw new Error('Parameter "data" must be a DataTable ' + + 'when options.type is "DataTable"'); + } + } + else if (data) { + type = (util.getType(data) == 'DataTable') ? 'DataTable' : 'Array'; + } + else { + type = 'Array'; + } + + // we allow the setting of this value for a single get request. + if (options != undefined) { + if (options.showInternalIds != undefined) { + this.showInternalIds = options.showInternalIds; + } + } + + // build options + var convert = options && options.convert || this.options.convert; + var filter = options && options.filter; + var items = [], item, itemId, i, len; + + // convert items + if (id != undefined) { + // return a single item + item = me._getItem(id, convert); + if (filter && !filter(item)) { + item = null; + } + } + else if (ids != undefined) { + // return a subset of items + for (i = 0, len = ids.length; i < len; i++) { + item = me._getItem(ids[i], convert); + if (!filter || filter(item)) { + items.push(item); + } + } + } + else { + // return all items + for (itemId in this.data) { + if (this.data.hasOwnProperty(itemId)) { + item = me._getItem(itemId, convert); + if (!filter || filter(item)) { + items.push(item); + } + } + } + } + + // restore the global value of showInternalIds + this.showInternalIds = globalShowInternalIds; + + // order the results + if (options && options.order && id == undefined) { + this._sort(items, options.order); + } + + // filter fields of the items + if (options && options.fields) { + var fields = options.fields; + if (id != undefined) { + item = this._filterFields(item, fields); + } + else { + for (i = 0, len = items.length; i < len; i++) { + items[i] = this._filterFields(items[i], fields); + } + } + } + + // return the results + if (type == 'DataTable') { + var columns = this._getColumnNames(data); + if (id != undefined) { + // append a single item to the data table + me._appendRow(data, columns, item); + } + else { + // copy the items to the provided data table + for (i = 0, len = items.length; i < len; i++) { + me._appendRow(data, columns, items[i]); + } + } + return data; + } + else { + // return an array + if (id != undefined) { + // a single item + return item; + } + else { + // multiple items + if (data) { + // copy the items to the provided array + for (i = 0, len = items.length; i < len; i++) { + data.push(items[i]); + } + return data; + } + else { + // just return our array + return items; + } + } + } +}; + +/** + * Get ids of all items or from a filtered set of items. + * @param {Object} [options] An Object with options. Available options: + * {function} [filter] filter items + * {String | function} [order] Order the items by + * a field name or custom sort function. + * @return {Array} ids + */ +DataSet.prototype.getIds = function (options) { + var data = this.data, + filter = options && options.filter, + order = options && options.order, + convert = options && options.convert || this.options.convert, + i, + len, + id, + item, + items, + ids = []; + + if (filter) { + // get filtered items + if (order) { + // create ordered list + items = []; + for (id in data) { + if (data.hasOwnProperty(id)) { + item = this._getItem(id, convert); + if (filter(item)) { + items.push(item); + } + } + } + + this._sort(items, order); + + for (i = 0, len = items.length; i < len; i++) { + ids[i] = items[i][this.fieldId]; + } + } + else { + // create unordered list + for (id in data) { + if (data.hasOwnProperty(id)) { + item = this._getItem(id, convert); + if (filter(item)) { + ids.push(item[this.fieldId]); + } + } + } + } + } + else { + // get all items + if (order) { + // create an ordered list + items = []; + for (id in data) { + if (data.hasOwnProperty(id)) { + items.push(data[id]); + } + } + + this._sort(items, order); + + for (i = 0, len = items.length; i < len; i++) { + ids[i] = items[i][this.fieldId]; + } + } + else { + // create unordered list + for (id in data) { + if (data.hasOwnProperty(id)) { + item = data[id]; + ids.push(item[this.fieldId]); + } + } + } + } + + return ids; +}; + +/** + * Execute a callback function for every item in the dataset. + * The order of the items is not determined. + * @param {function} callback + * @param {Object} [options] Available options: + * {Object.} [convert] + * {String[]} [fields] filter fields + * {function} [filter] filter items + * {String | function} [order] Order the items by + * a field name or custom sort function. + */ +DataSet.prototype.forEach = function (callback, options) { + var filter = options && options.filter, + convert = options && options.convert || this.options.convert, + data = this.data, + item, + id; + + if (options && options.order) { + // execute forEach on ordered list + var items = this.get(options); + + for (var i = 0, len = items.length; i < len; i++) { + item = items[i]; + id = item[this.fieldId]; + callback(item, id); + } + } + else { + // unordered + for (id in data) { + if (data.hasOwnProperty(id)) { + item = this._getItem(id, convert); + if (!filter || filter(item)) { + callback(item, id); + } + } + } + } +}; + +/** + * Map every item in the dataset. + * @param {function} callback + * @param {Object} [options] Available options: + * {Object.} [convert] + * {String[]} [fields] filter fields + * {function} [filter] filter items + * {String | function} [order] Order the items by + * a field name or custom sort function. + * @return {Object[]} mappedItems + */ +DataSet.prototype.map = function (callback, options) { + var filter = options && options.filter, + convert = options && options.convert || this.options.convert, + mappedItems = [], + data = this.data, + item; + + // convert and filter items + for (var id in data) { + if (data.hasOwnProperty(id)) { + item = this._getItem(id, convert); + if (!filter || filter(item)) { + mappedItems.push(callback(item, id)); + } + } + } + + // order items + if (options && options.order) { + this._sort(mappedItems, options.order); + } + + return mappedItems; +}; + +/** + * Filter the fields of an item + * @param {Object} item + * @param {String[]} fields Field names + * @return {Object} filteredItem + * @private + */ +DataSet.prototype._filterFields = function (item, fields) { + var filteredItem = {}; + + for (var field in item) { + if (item.hasOwnProperty(field) && (fields.indexOf(field) != -1)) { + filteredItem[field] = item[field]; + } + } + + return filteredItem; +}; + +/** + * Sort the provided array with items + * @param {Object[]} items + * @param {String | function} order A field name or custom sort function. + * @private + */ +DataSet.prototype._sort = function (items, order) { + if (util.isString(order)) { + // order by provided field name + var name = order; // field name + items.sort(function (a, b) { + var av = a[name]; + var bv = b[name]; + return (av > bv) ? 1 : ((av < bv) ? -1 : 0); + }); + } + else if (typeof order === 'function') { + // order by sort function + items.sort(order); + } + // TODO: extend order by an Object {field:String, direction:String} + // where direction can be 'asc' or 'desc' + else { + throw new TypeError('Order must be a function or a string'); + } +}; + +/** + * Remove an object by pointer or by id + * @param {String | Number | Object | Array} id Object or id, or an array with + * objects or ids to be removed + * @param {String} [senderId] Optional sender id + * @return {Array} removedIds + */ +DataSet.prototype.remove = function (id, senderId) { + var removedIds = [], + i, len, removedId; + + if (id instanceof Array) { + for (i = 0, len = id.length; i < len; i++) { + removedId = this._remove(id[i]); + if (removedId != null) { + removedIds.push(removedId); + } + } + } + else { + removedId = this._remove(id); + if (removedId != null) { + removedIds.push(removedId); + } + } + + if (removedIds.length) { + this._trigger('remove', {items: removedIds}, senderId); + } + + return removedIds; +}; + +/** + * Remove an item by its id + * @param {Number | String | Object} id id or item + * @returns {Number | String | null} id + * @private + */ +DataSet.prototype._remove = function (id) { + if (util.isNumber(id) || util.isString(id)) { + if (this.data[id]) { + delete this.data[id]; + delete this.internalIds[id]; + return id; + } + } + else if (id instanceof Object) { + var itemId = id[this.fieldId]; + if (itemId && this.data[itemId]) { + delete this.data[itemId]; + delete this.internalIds[itemId]; + return itemId; + } + } + return null; +}; + +/** + * Clear the data + * @param {String} [senderId] Optional sender id + * @return {Array} removedIds The ids of all removed items + */ +DataSet.prototype.clear = function (senderId) { + var ids = Object.keys(this.data); + + this.data = {}; + this.internalIds = {}; + + this._trigger('remove', {items: ids}, senderId); + + return ids; +}; + +/** + * Find the item with maximum value of a specified field + * @param {String} field + * @return {Object | null} item Item containing max value, or null if no items + */ +DataSet.prototype.max = function (field) { + var data = this.data, + max = null, + maxField = null; + + for (var id in data) { + if (data.hasOwnProperty(id)) { + var item = data[id]; + var itemField = item[field]; + if (itemField != null && (!max || itemField > maxField)) { + max = item; + maxField = itemField; + } + } + } + + return max; +}; + +/** + * Find the item with minimum value of a specified field + * @param {String} field + * @return {Object | null} item Item containing max value, or null if no items + */ +DataSet.prototype.min = function (field) { + var data = this.data, + min = null, + minField = null; + + for (var id in data) { + if (data.hasOwnProperty(id)) { + var item = data[id]; + var itemField = item[field]; + if (itemField != null && (!min || itemField < minField)) { + min = item; + minField = itemField; + } + } + } + + return min; +}; + +/** + * Find all distinct values of a specified field + * @param {String} field + * @return {Array} values Array containing all distinct values. If the data + * items do not contain the specified field, an array + * containing a single value undefined is returned. + * The returned array is unordered. + */ +DataSet.prototype.distinct = function (field) { + var data = this.data, + values = [], + fieldType = this.options.convert[field], + count = 0; + + for (var prop in data) { + if (data.hasOwnProperty(prop)) { + var item = data[prop]; + var value = util.convert(item[field], fieldType); + var exists = false; + for (var i = 0; i < count; i++) { + if (values[i] == value) { + exists = true; + break; + } + } + if (!exists) { + values[count] = value; + count++; + } + } + } + + return values; +}; + +/** + * Add a single item. Will fail when an item with the same id already exists. + * @param {Object} item + * @return {String} id + * @private + */ +DataSet.prototype._addItem = function (item) { + var id = item[this.fieldId]; + + if (id != undefined) { + // check whether this id is already taken + if (this.data[id]) { + // item already exists + throw new Error('Cannot add item: item with id ' + id + ' already exists'); + } + } + else { + // generate an id + id = util.randomUUID(); + item[this.fieldId] = id; + this.internalIds[id] = item; + } + + var d = {}; + for (var field in item) { + if (item.hasOwnProperty(field)) { + var fieldType = this.convert[field]; // type may be undefined + d[field] = util.convert(item[field], fieldType); + } + } + this.data[id] = d; + + return id; +}; + +/** + * Get an item. Fields can be converted to a specific type + * @param {String} id + * @param {Object.} [convert] field types to convert + * @return {Object | null} item + * @private + */ +DataSet.prototype._getItem = function (id, convert) { + var field, value; + + // get the item from the dataset + var raw = this.data[id]; + if (!raw) { + return null; + } + + // convert the items field types + var converted = {}, + fieldId = this.fieldId, + internalIds = this.internalIds; + if (convert) { + for (field in raw) { + if (raw.hasOwnProperty(field)) { + value = raw[field]; + // output all fields, except internal ids + if ((field != fieldId) || (!(value in internalIds) || this.showInternalIds)) { + converted[field] = util.convert(value, convert[field]); + } + } + } + } + else { + // no field types specified, no converting needed + for (field in raw) { + if (raw.hasOwnProperty(field)) { + value = raw[field]; + // output all fields, except internal ids + if ((field != fieldId) || (!(value in internalIds) || this.showInternalIds)) { + converted[field] = value; + } + } + } + } + return converted; +}; + +/** + * Update a single item: merge with existing item. + * Will fail when the item has no id, or when there does not exist an item + * with the same id. + * @param {Object} item + * @return {String} id + * @private + */ +DataSet.prototype._updateItem = function (item) { + var id = item[this.fieldId]; + if (id == undefined) { + throw new Error('Cannot update item: item has no id (item: ' + JSON.stringify(item) + ')'); + } + var d = this.data[id]; + if (!d) { + // item doesn't exist + throw new Error('Cannot update item: no item with id ' + id + ' found'); + } + + // merge with current item + for (var field in item) { + if (item.hasOwnProperty(field)) { + var fieldType = this.convert[field]; // type may be undefined + d[field] = util.convert(item[field], fieldType); + } + } + + return id; +}; + +/** + * check if an id is an internal or external id + * @param id + * @returns {boolean} + * @private + */ +DataSet.prototype.isInternalId = function(id) { + return (id in this.internalIds); +}; + + +/** + * Get an array with the column names of a Google DataTable + * @param {DataTable} dataTable + * @return {String[]} columnNames + * @private + */ +DataSet.prototype._getColumnNames = function (dataTable) { + var columns = []; + for (var col = 0, cols = dataTable.getNumberOfColumns(); col < cols; col++) { + columns[col] = dataTable.getColumnId(col) || dataTable.getColumnLabel(col); + } + return columns; +}; + +/** + * Append an item as a row to the dataTable + * @param dataTable + * @param columns + * @param item + * @private + */ +DataSet.prototype._appendRow = function (dataTable, columns, item) { + var row = dataTable.addRow(); + + for (var col = 0, cols = columns.length; col < cols; col++) { + var field = columns[col]; + dataTable.setValue(row, col, item[field]); + } +}; + +/** + * DataView + * + * a dataview offers a filtered view on a dataset or an other dataview. + * + * @param {DataSet | DataView} data + * @param {Object} [options] Available options: see method get + * + * @constructor DataView + */ +function DataView (data, options) { + this.id = util.randomUUID(); + + this.data = null; + this.ids = {}; // ids of the items currently in memory (just contains a boolean true) + this.options = options || {}; + this.fieldId = 'id'; // name of the field containing id + this.subscribers = {}; // event subscribers + + var me = this; + this.listener = function () { + me._onEvent.apply(me, arguments); + }; + + this.setData(data); +} + +// TODO: implement a function .config() to dynamically update things like configured filter +// and trigger changes accordingly + +/** + * Set a data source for the view + * @param {DataSet | DataView} data + */ +DataView.prototype.setData = function (data) { + var ids, dataItems, i, len; + + if (this.data) { + // unsubscribe from current dataset + if (this.data.unsubscribe) { + this.data.unsubscribe('*', this.listener); + } + + // trigger a remove of all items in memory + ids = []; + for (var id in this.ids) { + if (this.ids.hasOwnProperty(id)) { + ids.push(id); + } + } + this.ids = {}; + this._trigger('remove', {items: ids}); + } + + this.data = data; + + if (this.data) { + // update fieldId + this.fieldId = this.options.fieldId || + (this.data && this.data.options && this.data.options.fieldId) || + 'id'; + + // trigger an add of all added items + ids = this.data.getIds({filter: this.options && this.options.filter}); + for (i = 0, len = ids.length; i < len; i++) { + id = ids[i]; + this.ids[id] = true; + } + this._trigger('add', {items: ids}); + + // subscribe to new dataset + if (this.data.on) { + this.data.on('*', this.listener); + } + } +}; + +/** + * Get data from the data view + * + * Usage: + * + * get() + * get(options: Object) + * get(options: Object, data: Array | DataTable) + * + * get(id: Number) + * get(id: Number, options: Object) + * get(id: Number, options: Object, data: Array | DataTable) + * + * get(ids: Number[]) + * get(ids: Number[], options: Object) + * get(ids: Number[], options: Object, data: Array | DataTable) + * + * Where: + * + * {Number | String} id The id of an item + * {Number[] | String{}} ids An array with ids of items + * {Object} options An Object with options. Available options: + * {String} [type] Type of data to be returned. Can + * be 'DataTable' or 'Array' (default) + * {Object.} [convert] + * {String[]} [fields] field names to be returned + * {function} [filter] filter items + * {String | function} [order] Order the items by + * a field name or custom sort function. + * {Array | DataTable} [data] If provided, items will be appended to this + * array or table. Required in case of Google + * DataTable. + * @param args + */ +DataView.prototype.get = function (args) { + var me = this; + + // parse the arguments + var ids, options, data; + var firstType = util.getType(arguments[0]); + if (firstType == 'String' || firstType == 'Number' || firstType == 'Array') { + // get(id(s) [, options] [, data]) + ids = arguments[0]; // can be a single id or an array with ids + options = arguments[1]; + data = arguments[2]; + } + else { + // get([, options] [, data]) + options = arguments[0]; + data = arguments[1]; + } + + // extend the options with the default options and provided options + var viewOptions = util.extend({}, this.options, options); + + // create a combined filter method when needed + if (this.options.filter && options && options.filter) { + viewOptions.filter = function (item) { + return me.options.filter(item) && options.filter(item); + } + } + + // build up the call to the linked data set + var getArguments = []; + if (ids != undefined) { + getArguments.push(ids); + } + getArguments.push(viewOptions); + getArguments.push(data); + + return this.data && this.data.get.apply(this.data, getArguments); +}; + +/** + * Get ids of all items or from a filtered set of items. + * @param {Object} [options] An Object with options. Available options: + * {function} [filter] filter items + * {String | function} [order] Order the items by + * a field name or custom sort function. + * @return {Array} ids + */ +DataView.prototype.getIds = function (options) { + var ids; + + if (this.data) { + var defaultFilter = this.options.filter; + var filter; + + if (options && options.filter) { + if (defaultFilter) { + filter = function (item) { + return defaultFilter(item) && options.filter(item); + } + } + else { + filter = options.filter; + } + } + else { + filter = defaultFilter; + } + + ids = this.data.getIds({ + filter: filter, + order: options && options.order + }); + } + else { + ids = []; + } + + return ids; +}; + +/** + * Event listener. Will propagate all events from the connected data set to + * the subscribers of the DataView, but will filter the items and only trigger + * when there are changes in the filtered data set. + * @param {String} event + * @param {Object | null} params + * @param {String} senderId + * @private + */ +DataView.prototype._onEvent = function (event, params, senderId) { + var i, len, id, item, + ids = params && params.items, + data = this.data, + added = [], + updated = [], + removed = []; + + if (ids && data) { + switch (event) { + case 'add': + // filter the ids of the added items + for (i = 0, len = ids.length; i < len; i++) { + id = ids[i]; + item = this.get(id); + if (item) { + this.ids[id] = true; + added.push(id); + } + } + + break; + + case 'update': + // determine the event from the views viewpoint: an updated + // item can be added, updated, or removed from this view. + for (i = 0, len = ids.length; i < len; i++) { + id = ids[i]; + item = this.get(id); + + if (item) { + if (this.ids[id]) { + updated.push(id); + } + else { + this.ids[id] = true; + added.push(id); + } + } + else { + if (this.ids[id]) { + delete this.ids[id]; + removed.push(id); + } + else { + // nothing interesting for me :-( + } + } + } + + break; + + case 'remove': + // filter the ids of the removed items + for (i = 0, len = ids.length; i < len; i++) { + id = ids[i]; + if (this.ids[id]) { + delete this.ids[id]; + removed.push(id); + } + } + + break; + } + + if (added.length) { + this._trigger('add', {items: added}, senderId); + } + if (updated.length) { + this._trigger('update', {items: updated}, senderId); + } + if (removed.length) { + this._trigger('remove', {items: removed}, senderId); + } + } +}; + +// copy subscription functionality from DataSet +DataView.prototype.on = DataSet.prototype.on; +DataView.prototype.off = DataSet.prototype.off; +DataView.prototype._trigger = DataSet.prototype._trigger; + +// TODO: make these functions deprecated (replaced with `on` and `off` since version 0.5) +DataView.prototype.subscribe = DataView.prototype.on; +DataView.prototype.unsubscribe = DataView.prototype.off; + +/** + * @constructor TimeStep + * The class TimeStep is an iterator for dates. You provide a start date and an + * end date. The class itself determines the best scale (step size) based on the + * provided start Date, end Date, and minimumStep. + * + * If minimumStep is provided, the step size is chosen as close as possible + * to the minimumStep but larger than minimumStep. If minimumStep is not + * provided, the scale is set to 1 DAY. + * The minimumStep should correspond with the onscreen size of about 6 characters + * + * Alternatively, you can set a scale by hand. + * After creation, you can initialize the class by executing first(). Then you + * can iterate from the start date to the end date via next(). You can check if + * the end date is reached with the function hasNext(). After each step, you can + * retrieve the current date via getCurrent(). + * The TimeStep has scales ranging from milliseconds, seconds, minutes, hours, + * days, to years. + * + * Version: 1.2 + * + * @param {Date} [start] The start date, for example new Date(2010, 9, 21) + * or new Date(2010, 9, 21, 23, 45, 00) + * @param {Date} [end] The end date + * @param {Number} [minimumStep] Optional. Minimum step size in milliseconds + */ +TimeStep = function(start, end, minimumStep) { + // variables + this.current = new Date(); + this._start = new Date(); + this._end = new Date(); + + this.autoScale = true; + this.scale = TimeStep.SCALE.DAY; + this.step = 1; + + // initialize the range + this.setRange(start, end, minimumStep); +}; + +/// enum scale +TimeStep.SCALE = { + MILLISECOND: 1, + SECOND: 2, + MINUTE: 3, + HOUR: 4, + DAY: 5, + WEEKDAY: 6, + MONTH: 7, + YEAR: 8 +}; + + +/** + * Set a new range + * If minimumStep is provided, the step size is chosen as close as possible + * to the minimumStep but larger than minimumStep. If minimumStep is not + * provided, the scale is set to 1 DAY. + * The minimumStep should correspond with the onscreen size of about 6 characters + * @param {Date} [start] The start date and time. + * @param {Date} [end] The end date and time. + * @param {int} [minimumStep] Optional. Minimum step size in milliseconds + */ +TimeStep.prototype.setRange = function(start, end, minimumStep) { + if (!(start instanceof Date) || !(end instanceof Date)) { + throw "No legal start or end date in method setRange"; + } + + this._start = (start != undefined) ? new Date(start.valueOf()) : new Date(); + this._end = (end != undefined) ? new Date(end.valueOf()) : new Date(); + + if (this.autoScale) { + this.setMinimumStep(minimumStep); + } +}; + +/** + * Set the range iterator to the start date. + */ +TimeStep.prototype.first = function() { + this.current = new Date(this._start.valueOf()); + this.roundToMinor(); +}; + +/** + * Round the current date to the first minor date value + * This must be executed once when the current date is set to start Date + */ +TimeStep.prototype.roundToMinor = function() { + // round to floor + // IMPORTANT: we have no breaks in this switch! (this is no bug) + //noinspection FallthroughInSwitchStatementJS + switch (this.scale) { + case TimeStep.SCALE.YEAR: + this.current.setFullYear(this.step * Math.floor(this.current.getFullYear() / this.step)); + this.current.setMonth(0); + case TimeStep.SCALE.MONTH: this.current.setDate(1); + case TimeStep.SCALE.DAY: // intentional fall through + case TimeStep.SCALE.WEEKDAY: this.current.setHours(0); + case TimeStep.SCALE.HOUR: this.current.setMinutes(0); + case TimeStep.SCALE.MINUTE: this.current.setSeconds(0); + case TimeStep.SCALE.SECOND: this.current.setMilliseconds(0); + //case TimeStep.SCALE.MILLISECOND: // nothing to do for milliseconds + } + + if (this.step != 1) { + // round down to the first minor value that is a multiple of the current step size + switch (this.scale) { + case TimeStep.SCALE.MILLISECOND: this.current.setMilliseconds(this.current.getMilliseconds() - this.current.getMilliseconds() % this.step); break; + case TimeStep.SCALE.SECOND: this.current.setSeconds(this.current.getSeconds() - this.current.getSeconds() % this.step); break; + case TimeStep.SCALE.MINUTE: this.current.setMinutes(this.current.getMinutes() - this.current.getMinutes() % this.step); break; + case TimeStep.SCALE.HOUR: this.current.setHours(this.current.getHours() - this.current.getHours() % this.step); break; + case TimeStep.SCALE.WEEKDAY: // intentional fall through + case TimeStep.SCALE.DAY: this.current.setDate((this.current.getDate()-1) - (this.current.getDate()-1) % this.step + 1); break; + case TimeStep.SCALE.MONTH: this.current.setMonth(this.current.getMonth() - this.current.getMonth() % this.step); break; + case TimeStep.SCALE.YEAR: this.current.setFullYear(this.current.getFullYear() - this.current.getFullYear() % this.step); break; + default: break; + } + } +}; + +/** + * Check if the there is a next step + * @return {boolean} true if the current date has not passed the end date + */ +TimeStep.prototype.hasNext = function () { + return (this.current.valueOf() <= this._end.valueOf()); +}; + +/** + * Do the next step + */ +TimeStep.prototype.next = function() { + var prev = this.current.valueOf(); + + // Two cases, needed to prevent issues with switching daylight savings + // (end of March and end of October) + if (this.current.getMonth() < 6) { + switch (this.scale) { + case TimeStep.SCALE.MILLISECOND: + + this.current = new Date(this.current.valueOf() + this.step); break; + case TimeStep.SCALE.SECOND: this.current = new Date(this.current.valueOf() + this.step * 1000); break; + case TimeStep.SCALE.MINUTE: this.current = new Date(this.current.valueOf() + this.step * 1000 * 60); break; + case TimeStep.SCALE.HOUR: + this.current = new Date(this.current.valueOf() + this.step * 1000 * 60 * 60); + // in case of skipping an hour for daylight savings, adjust the hour again (else you get: 0h 5h 9h ... instead of 0h 4h 8h ...) + var h = this.current.getHours(); + this.current.setHours(h - (h % this.step)); + break; + case TimeStep.SCALE.WEEKDAY: // intentional fall through + case TimeStep.SCALE.DAY: this.current.setDate(this.current.getDate() + this.step); break; + case TimeStep.SCALE.MONTH: this.current.setMonth(this.current.getMonth() + this.step); break; + case TimeStep.SCALE.YEAR: this.current.setFullYear(this.current.getFullYear() + this.step); break; + default: break; + } + } + else { + switch (this.scale) { + case TimeStep.SCALE.MILLISECOND: this.current = new Date(this.current.valueOf() + this.step); break; + case TimeStep.SCALE.SECOND: this.current.setSeconds(this.current.getSeconds() + this.step); break; + case TimeStep.SCALE.MINUTE: this.current.setMinutes(this.current.getMinutes() + this.step); break; + case TimeStep.SCALE.HOUR: this.current.setHours(this.current.getHours() + this.step); break; + case TimeStep.SCALE.WEEKDAY: // intentional fall through + case TimeStep.SCALE.DAY: this.current.setDate(this.current.getDate() + this.step); break; + case TimeStep.SCALE.MONTH: this.current.setMonth(this.current.getMonth() + this.step); break; + case TimeStep.SCALE.YEAR: this.current.setFullYear(this.current.getFullYear() + this.step); break; + default: break; + } + } + + if (this.step != 1) { + // round down to the correct major value + switch (this.scale) { + case TimeStep.SCALE.MILLISECOND: if(this.current.getMilliseconds() < this.step) this.current.setMilliseconds(0); break; + case TimeStep.SCALE.SECOND: if(this.current.getSeconds() < this.step) this.current.setSeconds(0); break; + case TimeStep.SCALE.MINUTE: if(this.current.getMinutes() < this.step) this.current.setMinutes(0); break; + case TimeStep.SCALE.HOUR: if(this.current.getHours() < this.step) this.current.setHours(0); break; + case TimeStep.SCALE.WEEKDAY: // intentional fall through + case TimeStep.SCALE.DAY: if(this.current.getDate() < this.step+1) this.current.setDate(1); break; + case TimeStep.SCALE.MONTH: if(this.current.getMonth() < this.step) this.current.setMonth(0); break; + case TimeStep.SCALE.YEAR: break; // nothing to do for year + default: break; + } + } + + // safety mechanism: if current time is still unchanged, move to the end + if (this.current.valueOf() == prev) { + this.current = new Date(this._end.valueOf()); + } +}; + + +/** + * Get the current datetime + * @return {Date} current The current date + */ +TimeStep.prototype.getCurrent = function() { + return this.current; +}; + +/** + * Set a custom scale. Autoscaling will be disabled. + * For example setScale(SCALE.MINUTES, 5) will result + * in minor steps of 5 minutes, and major steps of an hour. + * + * @param {TimeStep.SCALE} newScale + * A scale. Choose from SCALE.MILLISECOND, + * SCALE.SECOND, SCALE.MINUTE, SCALE.HOUR, + * SCALE.WEEKDAY, SCALE.DAY, SCALE.MONTH, + * SCALE.YEAR. + * @param {Number} newStep A step size, by default 1. Choose for + * example 1, 2, 5, or 10. + */ +TimeStep.prototype.setScale = function(newScale, newStep) { + this.scale = newScale; + + if (newStep > 0) { + this.step = newStep; + } + + this.autoScale = false; +}; + +/** + * Enable or disable autoscaling + * @param {boolean} enable If true, autoascaling is set true + */ +TimeStep.prototype.setAutoScale = function (enable) { + this.autoScale = enable; +}; + + +/** + * Automatically determine the scale that bests fits the provided minimum step + * @param {Number} [minimumStep] The minimum step size in milliseconds + */ +TimeStep.prototype.setMinimumStep = function(minimumStep) { + if (minimumStep == undefined) { + return; + } + + var stepYear = (1000 * 60 * 60 * 24 * 30 * 12); + var stepMonth = (1000 * 60 * 60 * 24 * 30); + var stepDay = (1000 * 60 * 60 * 24); + var stepHour = (1000 * 60 * 60); + var stepMinute = (1000 * 60); + var stepSecond = (1000); + var stepMillisecond= (1); + + // find the smallest step that is larger than the provided minimumStep + if (stepYear*1000 > minimumStep) {this.scale = TimeStep.SCALE.YEAR; this.step = 1000;} + if (stepYear*500 > minimumStep) {this.scale = TimeStep.SCALE.YEAR; this.step = 500;} + if (stepYear*100 > minimumStep) {this.scale = TimeStep.SCALE.YEAR; this.step = 100;} + if (stepYear*50 > minimumStep) {this.scale = TimeStep.SCALE.YEAR; this.step = 50;} + if (stepYear*10 > minimumStep) {this.scale = TimeStep.SCALE.YEAR; this.step = 10;} + if (stepYear*5 > minimumStep) {this.scale = TimeStep.SCALE.YEAR; this.step = 5;} + if (stepYear > minimumStep) {this.scale = TimeStep.SCALE.YEAR; this.step = 1;} + if (stepMonth*3 > minimumStep) {this.scale = TimeStep.SCALE.MONTH; this.step = 3;} + if (stepMonth > minimumStep) {this.scale = TimeStep.SCALE.MONTH; this.step = 1;} + if (stepDay*5 > minimumStep) {this.scale = TimeStep.SCALE.DAY; this.step = 5;} + if (stepDay*2 > minimumStep) {this.scale = TimeStep.SCALE.DAY; this.step = 2;} + if (stepDay > minimumStep) {this.scale = TimeStep.SCALE.DAY; this.step = 1;} + if (stepDay/2 > minimumStep) {this.scale = TimeStep.SCALE.WEEKDAY; this.step = 1;} + if (stepHour*4 > minimumStep) {this.scale = TimeStep.SCALE.HOUR; this.step = 4;} + if (stepHour > minimumStep) {this.scale = TimeStep.SCALE.HOUR; this.step = 1;} + if (stepMinute*15 > minimumStep) {this.scale = TimeStep.SCALE.MINUTE; this.step = 15;} + if (stepMinute*10 > minimumStep) {this.scale = TimeStep.SCALE.MINUTE; this.step = 10;} + if (stepMinute*5 > minimumStep) {this.scale = TimeStep.SCALE.MINUTE; this.step = 5;} + if (stepMinute > minimumStep) {this.scale = TimeStep.SCALE.MINUTE; this.step = 1;} + if (stepSecond*15 > minimumStep) {this.scale = TimeStep.SCALE.SECOND; this.step = 15;} + if (stepSecond*10 > minimumStep) {this.scale = TimeStep.SCALE.SECOND; this.step = 10;} + if (stepSecond*5 > minimumStep) {this.scale = TimeStep.SCALE.SECOND; this.step = 5;} + if (stepSecond > minimumStep) {this.scale = TimeStep.SCALE.SECOND; this.step = 1;} + if (stepMillisecond*200 > minimumStep) {this.scale = TimeStep.SCALE.MILLISECOND; this.step = 200;} + if (stepMillisecond*100 > minimumStep) {this.scale = TimeStep.SCALE.MILLISECOND; this.step = 100;} + if (stepMillisecond*50 > minimumStep) {this.scale = TimeStep.SCALE.MILLISECOND; this.step = 50;} + if (stepMillisecond*10 > minimumStep) {this.scale = TimeStep.SCALE.MILLISECOND; this.step = 10;} + if (stepMillisecond*5 > minimumStep) {this.scale = TimeStep.SCALE.MILLISECOND; this.step = 5;} + if (stepMillisecond > minimumStep) {this.scale = TimeStep.SCALE.MILLISECOND; this.step = 1;} +}; + +/** + * Snap a date to a rounded value. + * The snap intervals are dependent on the current scale and step. + * @param {Date} date the date to be snapped. + * @return {Date} snappedDate + */ +TimeStep.prototype.snap = function(date) { + var clone = new Date(date.valueOf()); + + if (this.scale == TimeStep.SCALE.YEAR) { + var year = clone.getFullYear() + Math.round(clone.getMonth() / 12); + clone.setFullYear(Math.round(year / this.step) * this.step); + clone.setMonth(0); + clone.setDate(0); + clone.setHours(0); + clone.setMinutes(0); + clone.setSeconds(0); + clone.setMilliseconds(0); + } + else if (this.scale == TimeStep.SCALE.MONTH) { + if (clone.getDate() > 15) { + clone.setDate(1); + clone.setMonth(clone.getMonth() + 1); + // important: first set Date to 1, after that change the month. + } + else { + clone.setDate(1); + } + + clone.setHours(0); + clone.setMinutes(0); + clone.setSeconds(0); + clone.setMilliseconds(0); + } + else if (this.scale == TimeStep.SCALE.DAY || + this.scale == TimeStep.SCALE.WEEKDAY) { + //noinspection FallthroughInSwitchStatementJS + switch (this.step) { + case 5: + case 2: + clone.setHours(Math.round(clone.getHours() / 24) * 24); break; + default: + clone.setHours(Math.round(clone.getHours() / 12) * 12); break; + } + clone.setMinutes(0); + clone.setSeconds(0); + clone.setMilliseconds(0); + } + else if (this.scale == TimeStep.SCALE.HOUR) { + switch (this.step) { + case 4: + clone.setMinutes(Math.round(clone.getMinutes() / 60) * 60); break; + default: + clone.setMinutes(Math.round(clone.getMinutes() / 30) * 30); break; + } + clone.setSeconds(0); + clone.setMilliseconds(0); + } else if (this.scale == TimeStep.SCALE.MINUTE) { + //noinspection FallthroughInSwitchStatementJS + switch (this.step) { + case 15: + case 10: + clone.setMinutes(Math.round(clone.getMinutes() / 5) * 5); + clone.setSeconds(0); + break; + case 5: + clone.setSeconds(Math.round(clone.getSeconds() / 60) * 60); break; + default: + clone.setSeconds(Math.round(clone.getSeconds() / 30) * 30); break; + } + clone.setMilliseconds(0); + } + else if (this.scale == TimeStep.SCALE.SECOND) { + //noinspection FallthroughInSwitchStatementJS + switch (this.step) { + case 15: + case 10: + clone.setSeconds(Math.round(clone.getSeconds() / 5) * 5); + clone.setMilliseconds(0); + break; + case 5: + clone.setMilliseconds(Math.round(clone.getMilliseconds() / 1000) * 1000); break; + default: + clone.setMilliseconds(Math.round(clone.getMilliseconds() / 500) * 500); break; + } + } + else if (this.scale == TimeStep.SCALE.MILLISECOND) { + var step = this.step > 5 ? this.step / 2 : 1; + clone.setMilliseconds(Math.round(clone.getMilliseconds() / step) * step); + } + + return clone; +}; + +/** + * Check if the current value is a major value (for example when the step + * is DAY, a major value is each first day of the MONTH) + * @return {boolean} true if current date is major, else false. + */ +TimeStep.prototype.isMajor = function() { + switch (this.scale) { + case TimeStep.SCALE.MILLISECOND: + return (this.current.getMilliseconds() == 0); + case TimeStep.SCALE.SECOND: + return (this.current.getSeconds() == 0); + case TimeStep.SCALE.MINUTE: + return (this.current.getHours() == 0) && (this.current.getMinutes() == 0); + // Note: this is no bug. Major label is equal for both minute and hour scale + case TimeStep.SCALE.HOUR: + return (this.current.getHours() == 0); + case TimeStep.SCALE.WEEKDAY: // intentional fall through + case TimeStep.SCALE.DAY: + return (this.current.getDate() == 1); + case TimeStep.SCALE.MONTH: + return (this.current.getMonth() == 0); + case TimeStep.SCALE.YEAR: + return false; + default: + return false; + } +}; + + +/** + * Returns formatted text for the minor axislabel, depending on the current + * date and the scale. For example when scale is MINUTE, the current time is + * formatted as "hh:mm". + * @param {Date} [date] custom date. if not provided, current date is taken + */ +TimeStep.prototype.getLabelMinor = function(date) { + if (date == undefined) { + date = this.current; + } + + switch (this.scale) { + case TimeStep.SCALE.MILLISECOND: return moment(date).format('SSS'); + case TimeStep.SCALE.SECOND: return moment(date).format('s'); + case TimeStep.SCALE.MINUTE: return moment(date).format('HH:mm'); + case TimeStep.SCALE.HOUR: return moment(date).format('HH:mm'); + case TimeStep.SCALE.WEEKDAY: return moment(date).format('ddd D'); + case TimeStep.SCALE.DAY: return moment(date).format('D'); + case TimeStep.SCALE.MONTH: return moment(date).format('MMM'); + case TimeStep.SCALE.YEAR: return moment(date).format('YYYY'); + default: return ''; + } +}; + + +/** + * Returns formatted text for the major axis label, depending on the current + * date and the scale. For example when scale is MINUTE, the major scale is + * hours, and the hour will be formatted as "hh". + * @param {Date} [date] custom date. if not provided, current date is taken + */ +TimeStep.prototype.getLabelMajor = function(date) { + if (date == undefined) { + date = this.current; + } + + //noinspection FallthroughInSwitchStatementJS + switch (this.scale) { + case TimeStep.SCALE.MILLISECOND:return moment(date).format('HH:mm:ss'); + case TimeStep.SCALE.SECOND: return moment(date).format('D MMMM HH:mm'); + case TimeStep.SCALE.MINUTE: + case TimeStep.SCALE.HOUR: return moment(date).format('ddd D MMMM'); + case TimeStep.SCALE.WEEKDAY: + case TimeStep.SCALE.DAY: return moment(date).format('MMMM YYYY'); + case TimeStep.SCALE.MONTH: return moment(date).format('YYYY'); + case TimeStep.SCALE.YEAR: return ''; + default: return ''; + } +}; + +/** + * @constructor Stack + * Stacks items on top of each other. + * @param {ItemSet} itemset + * @param {Object} [options] + */ +function Stack (itemset, options) { + this.itemset = itemset; + + this.options = options || {}; + this.defaultOptions = { + order: function (a, b) { + //return (b.width - a.width) || (a.left - b.left); // TODO: cleanup + // Order: ranges over non-ranges, ranged ordered by width, and + // lastly ordered by start. + if (a instanceof ItemRange) { + if (b instanceof ItemRange) { + var aInt = (a.data.end - a.data.start); + var bInt = (b.data.end - b.data.start); + return (aInt - bInt) || (a.data.start - b.data.start); + } + else { + return -1; + } + } + else { + if (b instanceof ItemRange) { + return 1; + } + else { + return (a.data.start - b.data.start); + } + } + }, + margin: { + item: 10 + } + }; + + this.ordered = []; // ordered items +} + +/** + * Set options for the stack + * @param {Object} options Available options: + * {ItemSet} itemset + * {Number} margin + * {function} order Stacking order + */ +Stack.prototype.setOptions = function setOptions (options) { + util.extend(this.options, options); + + // TODO: register on data changes at the connected itemset, and update the changed part only and immediately +}; + +/** + * Stack the items such that they don't overlap. The items will have a minimal + * distance equal to options.margin.item. + */ +Stack.prototype.update = function update() { + this._order(); + this._stack(); +}; + +/** + * Order the items. If a custom order function has been provided via the options, + * then this will be used. + * @private + */ +Stack.prototype._order = function _order () { + var items = this.itemset.items; + if (!items) { + throw new Error('Cannot stack items: ItemSet does not contain items'); + } + + // TODO: store the sorted items, to have less work later on + var ordered = []; + var index = 0; + // items is a map (no array) + util.forEach(items, function (item) { + if (item.visible) { + ordered[index] = item; + index++; + } + }); + + //if a customer stack order function exists, use it. + var order = this.options.order || this.defaultOptions.order; + if (!(typeof order === 'function')) { + throw new Error('Option order must be a function'); + } + + ordered.sort(order); + + this.ordered = ordered; +}; + +/** + * Adjust vertical positions of the events such that they don't overlap each + * other. + * @private + */ +Stack.prototype._stack = function _stack () { + var i, + iMax, + ordered = this.ordered, + options = this.options, + orientation = options.orientation || this.defaultOptions.orientation, + axisOnTop = (orientation == 'top'), + margin; + + if (options.margin && options.margin.item !== undefined) { + margin = options.margin.item; + } + else { + margin = this.defaultOptions.margin.item + } + + // calculate new, non-overlapping positions + for (i = 0, iMax = ordered.length; i < iMax; i++) { + var item = ordered[i]; + var collidingItem = null; + do { + // TODO: optimize checking for overlap. when there is a gap without items, + // you only need to check for items from the next item on, not from zero + collidingItem = this.checkOverlap(ordered, i, 0, i - 1, margin); + if (collidingItem != null) { + // There is a collision. Reposition the event above the colliding element + if (axisOnTop) { + item.top = collidingItem.top + collidingItem.height + margin; + } + else { + item.top = collidingItem.top - item.height - margin; + } + } + } while (collidingItem); + } +}; + +/** + * Check if the destiny position of given item overlaps with any + * of the other items from index itemStart to itemEnd. + * @param {Array} items Array with items + * @param {int} itemIndex Number of the item to be checked for overlap + * @param {int} itemStart First item to be checked. + * @param {int} itemEnd Last item to be checked. + * @return {Object | null} colliding item, or undefined when no collisions + * @param {Number} margin A minimum required margin. + * If margin is provided, the two items will be + * marked colliding when they overlap or + * when the margin between the two is smaller than + * the requested margin. + */ +Stack.prototype.checkOverlap = function checkOverlap (items, itemIndex, + itemStart, itemEnd, margin) { + var collision = this.collision; + + // we loop from end to start, as we suppose that the chance of a + // collision is larger for items at the end, so check these first. + var a = items[itemIndex]; + for (var i = itemEnd; i >= itemStart; i--) { + var b = items[i]; + if (collision(a, b, margin)) { + if (i != itemIndex) { + return b; + } + } + } + + return null; +}; + +/** + * Test if the two provided items collide + * The items must have parameters left, width, top, and height. + * @param {Component} a The first item + * @param {Component} b The second item + * @param {Number} margin A minimum required margin. + * If margin is provided, the two items will be + * marked colliding when they overlap or + * when the margin between the two is smaller than + * the requested margin. + * @return {boolean} true if a and b collide, else false + */ +Stack.prototype.collision = function collision (a, b, margin) { + return ((a.left - margin) < (b.left + b.width) && + (a.left + a.width + margin) > b.left && + (a.top - margin) < (b.top + b.height) && + (a.top + a.height + margin) > b.top); +}; + +/** + * @constructor Range + * A Range controls a numeric range with a start and end value. + * The Range adjusts the range based on mouse events or programmatic changes, + * and triggers events when the range is changing or has been changed. + * @param {Object} [options] See description at Range.setOptions + * @extends Controller + */ +function Range(options) { + this.id = util.randomUUID(); + this.start = null; // Number + this.end = null; // Number + + this.options = options || {}; + + this.setOptions(options); +} + +// extend the Range prototype with an event emitter mixin +Emitter(Range.prototype); + +/** + * Set options for the range controller + * @param {Object} options Available options: + * {Number} min Minimum value for start + * {Number} max Maximum value for end + * {Number} zoomMin Set a minimum value for + * (end - start). + * {Number} zoomMax Set a maximum value for + * (end - start). + */ +Range.prototype.setOptions = function (options) { + util.extend(this.options, options); + + // re-apply range with new limitations + if (this.start !== null && this.end !== null) { + this.setRange(this.start, this.end); + } +}; + +/** + * Test whether direction has a valid value + * @param {String} direction 'horizontal' or 'vertical' + */ +function validateDirection (direction) { + if (direction != 'horizontal' && direction != 'vertical') { + throw new TypeError('Unknown direction "' + direction + '". ' + + 'Choose "horizontal" or "vertical".'); + } +} + +/** + * Add listeners for mouse and touch events to the component + * @param {Controller} controller + * @param {Component} component Should be a rootpanel + * @param {String} event Available events: 'move', 'zoom' + * @param {String} direction Available directions: 'horizontal', 'vertical' + */ +Range.prototype.subscribe = function (controller, component, event, direction) { + var me = this; + + if (event == 'move') { + // drag start listener + controller.on('dragstart', function (event) { + me._onDragStart(event, component); + }); + + // drag listener + controller.on('drag', function (event) { + me._onDrag(event, component, direction); + }); + + // drag end listener + controller.on('dragend', function (event) { + me._onDragEnd(event, component); + }); + + // ignore dragging when holding + controller.on('hold', function (event) { + me._onHold(); + }); + } + else if (event == 'zoom') { + // mouse wheel + function mousewheel (event) { + me._onMouseWheel(event, component, direction); + } + controller.on('mousewheel', mousewheel); + controller.on('DOMMouseScroll', mousewheel); // For FF + + // pinch + controller.on('touch', function (event) { + me._onTouch(event); + }); + controller.on('pinch', function (event) { + me._onPinch(event, component, direction); + }); + } + else { + throw new TypeError('Unknown event "' + event + '". ' + + 'Choose "move" or "zoom".'); + } +}; + +/** + * Set a new start and end range + * @param {Number} [start] + * @param {Number} [end] + */ +Range.prototype.setRange = function(start, end) { + var changed = this._applyRange(start, end); + if (changed) { + var params = { + start: this.start, + end: this.end + }; + this.emit('rangechange', params); + this.emit('rangechanged', params); + } +}; + +/** + * Set a new start and end range. This method is the same as setRange, but + * does not trigger a range change and range changed event, and it returns + * true when the range is changed + * @param {Number} [start] + * @param {Number} [end] + * @return {Boolean} changed + * @private + */ +Range.prototype._applyRange = function(start, end) { + var newStart = (start != null) ? util.convert(start, 'Date').valueOf() : this.start, + newEnd = (end != null) ? util.convert(end, 'Date').valueOf() : this.end, + max = (this.options.max != null) ? util.convert(this.options.max, 'Date').valueOf() : null, + min = (this.options.min != null) ? util.convert(this.options.min, 'Date').valueOf() : null, + diff; + + // check for valid number + if (isNaN(newStart) || newStart === null) { + throw new Error('Invalid start "' + start + '"'); + } + if (isNaN(newEnd) || newEnd === null) { + throw new Error('Invalid end "' + end + '"'); + } + + // prevent start < end + if (newEnd < newStart) { + newEnd = newStart; + } + + // prevent start < min + if (min !== null) { + if (newStart < min) { + diff = (min - newStart); + newStart += diff; + newEnd += diff; + + // prevent end > max + if (max != null) { + if (newEnd > max) { + newEnd = max; + } + } + } + } + + // prevent end > max + if (max !== null) { + if (newEnd > max) { + diff = (newEnd - max); + newStart -= diff; + newEnd -= diff; + + // prevent start < min + if (min != null) { + if (newStart < min) { + newStart = min; + } + } + } + } + + // prevent (end-start) < zoomMin + if (this.options.zoomMin !== null) { + var zoomMin = parseFloat(this.options.zoomMin); + if (zoomMin < 0) { + zoomMin = 0; + } + if ((newEnd - newStart) < zoomMin) { + if ((this.end - this.start) === zoomMin) { + // ignore this action, we are already zoomed to the minimum + newStart = this.start; + newEnd = this.end; + } + else { + // zoom to the minimum + diff = (zoomMin - (newEnd - newStart)); + newStart -= diff / 2; + newEnd += diff / 2; + } + } + } + + // prevent (end-start) > zoomMax + if (this.options.zoomMax !== null) { + var zoomMax = parseFloat(this.options.zoomMax); + if (zoomMax < 0) { + zoomMax = 0; + } + if ((newEnd - newStart) > zoomMax) { + if ((this.end - this.start) === zoomMax) { + // ignore this action, we are already zoomed to the maximum + newStart = this.start; + newEnd = this.end; + } + else { + // zoom to the maximum + diff = ((newEnd - newStart) - zoomMax); + newStart += diff / 2; + newEnd -= diff / 2; + } + } + } + + var changed = (this.start != newStart || this.end != newEnd); + + this.start = newStart; + this.end = newEnd; + + return changed; +}; + +/** + * Retrieve the current range. + * @return {Object} An object with start and end properties + */ +Range.prototype.getRange = function() { + return { + start: this.start, + end: this.end + }; +}; + +/** + * Calculate the conversion offset and scale for current range, based on + * the provided width + * @param {Number} width + * @returns {{offset: number, scale: number}} conversion + */ +Range.prototype.conversion = function (width) { + return Range.conversion(this.start, this.end, width); +}; + +/** + * Static method to calculate the conversion offset and scale for a range, + * based on the provided start, end, and width + * @param {Number} start + * @param {Number} end + * @param {Number} width + * @returns {{offset: number, scale: number}} conversion + */ +Range.conversion = function (start, end, width) { + if (width != 0 && (end - start != 0)) { + return { + offset: start, + scale: width / (end - start) + } + } + else { + return { + offset: 0, + scale: 1 + }; + } +}; + +// global (private) object to store drag params +var touchParams = {}; + +/** + * Start dragging horizontally or vertically + * @param {Event} event + * @param {Object} component + * @private + */ +Range.prototype._onDragStart = function(event, component) { + // refuse to drag when we where pinching to prevent the timeline make a jump + // when releasing the fingers in opposite order from the touch screen + if (touchParams.ignore) return; + + // TODO: reckon with option movable + + touchParams.start = this.start; + touchParams.end = this.end; + + var frame = component.frame; + if (frame) { + frame.style.cursor = 'move'; + } +}; + +/** + * Perform dragging operating. + * @param {Event} event + * @param {Component} component + * @param {String} direction 'horizontal' or 'vertical' + * @private + */ +Range.prototype._onDrag = function (event, component, direction) { + validateDirection(direction); + + // TODO: reckon with option movable + + + // refuse to drag when we where pinching to prevent the timeline make a jump + // when releasing the fingers in opposite order from the touch screen + if (touchParams.ignore) return; + + var delta = (direction == 'horizontal') ? event.gesture.deltaX : event.gesture.deltaY, + interval = (touchParams.end - touchParams.start), + width = (direction == 'horizontal') ? component.width : component.height, + diffRange = -delta / width * interval; + + this._applyRange(touchParams.start + diffRange, touchParams.end + diffRange); + + this.emit('rangechange', { + start: this.start, + end: this.end + }); +}; + +/** + * Stop dragging operating. + * @param {event} event + * @param {Component} component + * @private + */ +Range.prototype._onDragEnd = function (event, component) { + // refuse to drag when we where pinching to prevent the timeline make a jump + // when releasing the fingers in opposite order from the touch screen + if (touchParams.ignore) return; + + // TODO: reckon with option movable + + if (component.frame) { + component.frame.style.cursor = 'auto'; + } + + // fire a rangechanged event + this.emit('rangechanged', { + start: this.start, + end: this.end + }); +}; + +/** + * Event handler for mouse wheel event, used to zoom + * Code from http://adomas.org/javascript-mouse-wheel/ + * @param {Event} event + * @param {Component} component + * @param {String} direction 'horizontal' or 'vertical' + * @private + */ +Range.prototype._onMouseWheel = function(event, component, direction) { + validateDirection(direction); + + // TODO: reckon with option zoomable + + // retrieve delta + var delta = 0; + if (event.wheelDelta) { /* IE/Opera. */ + delta = event.wheelDelta / 120; + } else if (event.detail) { /* Mozilla case. */ + // In Mozilla, sign of delta is different than in IE. + // Also, delta is multiple of 3. + delta = -event.detail / 3; + } + + // If delta is nonzero, handle it. + // Basically, delta is now positive if wheel was scrolled up, + // and negative, if wheel was scrolled down. + if (delta) { + // perform the zoom action. Delta is normally 1 or -1 + + // adjust a negative delta such that zooming in with delta 0.1 + // equals zooming out with a delta -0.1 + var scale; + if (delta < 0) { + scale = 1 - (delta / 5); + } + else { + scale = 1 / (1 + (delta / 5)) ; + } + + // calculate center, the date to zoom around + var gesture = util.fakeGesture(this, event), + pointer = getPointer(gesture.center, component.frame), + pointerDate = this._pointerToDate(component, direction, pointer); + + this.zoom(scale, pointerDate); + } + + // Prevent default actions caused by mouse wheel + // (else the page and timeline both zoom and scroll) + event.preventDefault(); +}; + +/** + * Start of a touch gesture + * @private + */ +Range.prototype._onTouch = function (event) { + touchParams.start = this.start; + touchParams.end = this.end; + touchParams.ignore = false; + touchParams.center = null; + + // don't move the range when dragging a selected event + // TODO: it's not so neat to have to know about the state of the ItemSet + var item = ItemSet.itemFromTarget(event); + if (item && item.selected && this.options.editable) { + touchParams.ignore = true; + } +}; + +/** + * On start of a hold gesture + * @private + */ +Range.prototype._onHold = function () { + touchParams.ignore = true; +}; + +/** + * Handle pinch event + * @param {Event} event + * @param {Component} component + * @param {String} direction 'horizontal' or 'vertical' + * @private + */ +Range.prototype._onPinch = function (event, component, direction) { + touchParams.ignore = true; + + // TODO: reckon with option zoomable + + if (event.gesture.touches.length > 1) { + if (!touchParams.center) { + touchParams.center = getPointer(event.gesture.center, component.frame); + } + + var scale = 1 / event.gesture.scale, + initDate = this._pointerToDate(component, direction, touchParams.center), + center = getPointer(event.gesture.center, component.frame), + date = this._pointerToDate(component, direction, center), + delta = date - initDate; // TODO: utilize delta + + // calculate new start and end + var newStart = parseInt(initDate + (touchParams.start - initDate) * scale); + var newEnd = parseInt(initDate + (touchParams.end - initDate) * scale); + + // apply new range + this.setRange(newStart, newEnd); + } +}; + +/** + * Helper function to calculate the center date for zooming + * @param {Component} component + * @param {{x: Number, y: Number}} pointer + * @param {String} direction 'horizontal' or 'vertical' + * @return {number} date + * @private + */ +Range.prototype._pointerToDate = function (component, direction, pointer) { + var conversion; + if (direction == 'horizontal') { + var width = component.width; + conversion = this.conversion(width); + return pointer.x / conversion.scale + conversion.offset; + } + else { + var height = component.height; + conversion = this.conversion(height); + return pointer.y / conversion.scale + conversion.offset; + } +}; + +/** + * Get the pointer location relative to the location of the dom element + * @param {{pageX: Number, pageY: Number}} touch + * @param {Element} element HTML DOM element + * @return {{x: Number, y: Number}} pointer + * @private + */ +function getPointer (touch, element) { + return { + x: touch.pageX - vis.util.getAbsoluteLeft(element), + y: touch.pageY - vis.util.getAbsoluteTop(element) + }; +} + +/** + * Zoom the range the given scale in or out. Start and end date will + * be adjusted, and the timeline will be redrawn. You can optionally give a + * date around which to zoom. + * For example, try scale = 0.9 or 1.1 + * @param {Number} scale Scaling factor. Values above 1 will zoom out, + * values below 1 will zoom in. + * @param {Number} [center] Value representing a date around which will + * be zoomed. + */ +Range.prototype.zoom = function(scale, center) { + // if centerDate is not provided, take it half between start Date and end Date + if (center == null) { + center = (this.start + this.end) / 2; + } + + // calculate new start and end + var newStart = center + (this.start - center) * scale; + var newEnd = center + (this.end - center) * scale; + + this.setRange(newStart, newEnd); +}; + +/** + * Move the range with a given delta to the left or right. Start and end + * value will be adjusted. For example, try delta = 0.1 or -0.1 + * @param {Number} delta Moving amount. Positive value will move right, + * negative value will move left + */ +Range.prototype.move = function(delta) { + // zoom start Date and end Date relative to the centerDate + var diff = (this.end - this.start); + + // apply new values + var newStart = this.start + diff * delta; + var newEnd = this.end + diff * delta; + + // TODO: reckon with min and max range + + this.start = newStart; + this.end = newEnd; +}; + +/** + * Move the range to a new center point + * @param {Number} moveTo New center point of the range + */ +Range.prototype.moveTo = function(moveTo) { + var center = (this.start + this.end) / 2; + + var diff = center - moveTo; + + // calculate new start and end + var newStart = this.start - diff; + var newEnd = this.end - diff; + + this.setRange(newStart, newEnd); +}; + +/** + * @constructor Controller + * + * A Controller controls the reflows and repaints of all components, + * and is used as an event bus for all components. + */ +function Controller () { + var me = this; + + this.id = util.randomUUID(); + this.components = {}; + + /** + * Listen for a 'request-reflow' event. The controller will schedule a reflow + * @param {Boolean} [force] If true, an immediate reflow is forced. Default + * is false. + */ + var reflowTimer = null; + this.on('request-reflow', function requestReflow(force) { + if (force) { + me.reflow(); + } + else { + if (!reflowTimer) { + reflowTimer = setTimeout(function () { + reflowTimer = null; + me.reflow(); + }, 0); + } + } + }); + + /** + * Request a repaint. The controller will schedule a repaint + * @param {Boolean} [force] If true, an immediate repaint is forced. Default + * is false. + */ + var repaintTimer = null; + this.on('request-repaint', function requestRepaint(force) { + if (force) { + me.repaint(); + } + else { + if (!repaintTimer) { + repaintTimer = setTimeout(function () { + repaintTimer = null; + me.repaint(); + }, 0); + } + } + }); +} + +// Extend controller with Emitter mixin +Emitter(Controller.prototype); + +/** + * Add a component to the controller + * @param {Component} component + */ +Controller.prototype.add = function add(component) { + // validate the component + if (component.id == undefined) { + throw new Error('Component has no field id'); + } + if (!(component instanceof Component) && !(component instanceof Controller)) { + throw new TypeError('Component must be an instance of ' + + 'prototype Component or Controller'); + } + + // add the component + component.setController(this); + this.components[component.id] = component; +}; + +/** + * Remove a component from the controller + * @param {Component | String} component + */ +Controller.prototype.remove = function remove(component) { + var id; + for (id in this.components) { + if (this.components.hasOwnProperty(id)) { + if (id == component || this.components[id] === component) { + break; + } + } + } + + if (id) { + // unregister the controller (gives the component the ability to unregister + // event listeners and clean up other stuff) + this.components[id].setController(null); + + delete this.components[id]; + } +}; + +/** + * Repaint all components + */ +Controller.prototype.repaint = function repaint() { + var changed = false; + + // cancel any running repaint request + if (this.repaintTimer) { + clearTimeout(this.repaintTimer); + this.repaintTimer = undefined; + } + + var done = {}; + + function repaint(component, id) { + if (!(id in done)) { + // first repaint the components on which this component is dependent + if (component.depends) { + component.depends.forEach(function (dep) { + repaint(dep, dep.id); + }); + } + if (component.parent) { + repaint(component.parent, component.parent.id); + } + + // repaint the component itself and mark as done + changed = component.repaint() || changed; + done[id] = true; + } + } + + util.forEach(this.components, repaint); + + this.emit('repaint'); + + // immediately reflow when needed + if (changed) { + this.reflow(); + } + // TODO: limit the number of nested reflows/repaints, prevent loop +}; + +/** + * Reflow all components + */ +Controller.prototype.reflow = function reflow() { + var resized = false; + + // cancel any running repaint request + if (this.reflowTimer) { + clearTimeout(this.reflowTimer); + this.reflowTimer = undefined; + } + + var done = {}; + + function reflow(component, id) { + if (!(id in done)) { + // first reflow the components on which this component is dependent + if (component.depends) { + component.depends.forEach(function (dep) { + reflow(dep, dep.id); + }); + } + if (component.parent) { + reflow(component.parent, component.parent.id); + } + + // reflow the component itself and mark as done + resized = component.reflow() || resized; + done[id] = true; + } + } + + util.forEach(this.components, reflow); + + this.emit('reflow'); + + // immediately repaint when needed + if (resized) { + this.repaint(); + } + // TODO: limit the number of nested reflows/repaints, prevent loop +}; + +/** + * Prototype for visual components + */ +function Component () { + this.id = null; + this.parent = null; + this.depends = null; + this.controller = null; + this.options = null; + + this.frame = null; // main DOM element + this.top = 0; + this.left = 0; + this.width = 0; + this.height = 0; +} + +/** + * Set parameters for the frame. Parameters will be merged in current parameter + * set. + * @param {Object} options Available parameters: + * {String | function} [className] + * {String | Number | function} [left] + * {String | Number | function} [top] + * {String | Number | function} [width] + * {String | Number | function} [height] + */ +Component.prototype.setOptions = function setOptions(options) { + if (options) { + util.extend(this.options, options); + + if (this.controller) { + this.requestRepaint(); + this.requestReflow(); + } + } +}; + +/** + * Get an option value by name + * The function will first check this.options object, and else will check + * this.defaultOptions. + * @param {String} name + * @return {*} value + */ +Component.prototype.getOption = function getOption(name) { + var value; + if (this.options) { + value = this.options[name]; + } + if (value === undefined && this.defaultOptions) { + value = this.defaultOptions[name]; + } + return value; +}; + +/** + * Set controller for this component, or remove current controller by passing + * null as parameter value. + * @param {Controller | null} controller + */ +Component.prototype.setController = function setController (controller) { + this.controller = controller || null; +}; + +/** + * Get controller of this component + * @return {Controller} controller + */ +Component.prototype.getController = function getController () { + return this.controller; +}; + +/** + * Get the container element of the component, which can be used by a child to + * add its own widgets. Not all components do have a container for childs, in + * that case null is returned. + * @returns {HTMLElement | null} container + */ +// TODO: get rid of the getContainer and getFrame methods, provide these via the options +Component.prototype.getContainer = function getContainer() { + // should be implemented by the component + return null; +}; + +/** + * Get the frame element of the component, the outer HTML DOM element. + * @returns {HTMLElement | null} frame + */ +Component.prototype.getFrame = function getFrame() { + return this.frame; +}; + +/** + * Repaint the component + * @return {Boolean} changed + */ +Component.prototype.repaint = function repaint() { + // should be implemented by the component + return false; +}; + +/** + * Reflow the component + * @return {Boolean} resized + */ +Component.prototype.reflow = function reflow() { + // should be implemented by the component + return false; +}; + +/** + * Hide the component from the DOM + * @return {Boolean} changed + */ +Component.prototype.hide = function hide() { + if (this.frame && this.frame.parentNode) { + this.frame.parentNode.removeChild(this.frame); + return true; + } + else { + return false; + } +}; + +/** + * Show the component in the DOM (when not already visible). + * A repaint will be executed when the component is not visible + * @return {Boolean} changed + */ +Component.prototype.show = function show() { + if (!this.frame || !this.frame.parentNode) { + return this.repaint(); + } + else { + return false; + } +}; + +/** + * Request a repaint. The controller will schedule a repaint + */ +Component.prototype.requestRepaint = function requestRepaint() { + if (this.controller) { + this.controller.emit('request-repaint'); + } + else { + throw new Error('Cannot request a repaint: no controller configured'); + // TODO: just do a repaint when no parent is configured? + } +}; + +/** + * Request a reflow. The controller will schedule a reflow + */ +Component.prototype.requestReflow = function requestReflow() { + if (this.controller) { + this.controller.emit('request-reflow'); + } + else { + throw new Error('Cannot request a reflow: no controller configured'); + // TODO: just do a reflow when no parent is configured? + } +}; + +/** + * A panel can contain components + * @param {Component} [parent] + * @param {Component[]} [depends] Components on which this components depends + * (except for the parent) + * @param {Object} [options] Available parameters: + * {String | Number | function} [left] + * {String | Number | function} [top] + * {String | Number | function} [width] + * {String | Number | function} [height] + * {String | function} [className] + * @constructor Panel + * @extends Component + */ +function Panel(parent, depends, options) { + this.id = util.randomUUID(); + this.parent = parent; + this.depends = depends; + + this.options = options || {}; +} + +Panel.prototype = new Component(); + +/** + * Set options. Will extend the current options. + * @param {Object} [options] Available parameters: + * {String | function} [className] + * {String | Number | function} [left] + * {String | Number | function} [top] + * {String | Number | function} [width] + * {String | Number | function} [height] + */ +Panel.prototype.setOptions = Component.prototype.setOptions; + +/** + * Get the container element of the panel, which can be used by a child to + * add its own widgets. + * @returns {HTMLElement} container + */ +Panel.prototype.getContainer = function () { + return this.frame; +}; + +/** + * Repaint the component + * @return {Boolean} changed + */ +Panel.prototype.repaint = function () { + var changed = 0, + update = util.updateProperty, + asSize = util.option.asSize, + options = this.options, + frame = this.frame; + if (!frame) { + frame = document.createElement('div'); + frame.className = 'vpanel'; + + var className = options.className; + if (className) { + if (typeof className == 'function') { + util.addClassName(frame, String(className())); + } + else { + util.addClassName(frame, String(className)); + } + } + + this.frame = frame; + changed += 1; + } + if (!frame.parentNode) { + if (!this.parent) { + throw new Error('Cannot repaint panel: no parent attached'); + } + var parentContainer = this.parent.getContainer(); + if (!parentContainer) { + throw new Error('Cannot repaint panel: parent has no container element'); + } + parentContainer.appendChild(frame); + changed += 1; + } + + changed += update(frame.style, 'top', asSize(options.top, '0px')); + changed += update(frame.style, 'left', asSize(options.left, '0px')); + changed += update(frame.style, 'width', asSize(options.width, '100%')); + changed += update(frame.style, 'height', asSize(options.height, '100%')); + + return (changed > 0); +}; + +/** + * Reflow the component + * @return {Boolean} resized + */ +Panel.prototype.reflow = function () { + var changed = 0, + update = util.updateProperty, + frame = this.frame; + + if (frame) { + changed += update(this, 'top', frame.offsetTop); + changed += update(this, 'left', frame.offsetLeft); + changed += update(this, 'width', frame.offsetWidth); + changed += update(this, 'height', frame.offsetHeight); + } + else { + changed += 1; + } + + return (changed > 0); +}; + +/** + * A root panel can hold components. The root panel must be initialized with + * a DOM element as container. + * @param {HTMLElement} container + * @param {Object} [options] Available parameters: see RootPanel.setOptions. + * @constructor RootPanel + * @extends Panel + */ +function RootPanel(container, options) { + this.id = util.randomUUID(); + this.container = container; + + // create functions to be used as DOM event listeners + var me = this; + this.hammer = null; + + // create listeners for all interesting events, these events will be emitted + // via the controller + var events = [ + 'touch', 'pinch', 'tap', 'doubletap', 'hold', + 'dragstart', 'drag', 'dragend', + 'mousewheel', 'DOMMouseScroll' // DOMMouseScroll is for Firefox + ]; + this.listeners = {}; + events.forEach(function (event) { + me.listeners[event] = function () { + var args = [event].concat(Array.prototype.slice.call(arguments, 0)); + me.controller.emit.apply(me.controller, args); + }; + }); + + this.options = options || {}; + this.defaultOptions = { + autoResize: true + }; +} + +RootPanel.prototype = new Panel(); + +/** + * Set options. Will extend the current options. + * @param {Object} [options] Available parameters: + * {String | function} [className] + * {String | Number | function} [left] + * {String | Number | function} [top] + * {String | Number | function} [width] + * {String | Number | function} [height] + * {Boolean | function} [autoResize] + */ +RootPanel.prototype.setOptions = Component.prototype.setOptions; + +/** + * Repaint the component + * @return {Boolean} changed + */ +RootPanel.prototype.repaint = function () { + var changed = 0, + update = util.updateProperty, + asSize = util.option.asSize, + options = this.options, + frame = this.frame; + + if (!frame) { + frame = document.createElement('div'); + + this.frame = frame; + + this._registerListeners(); + + changed += 1; + } + if (!frame.parentNode) { + if (!this.container) { + throw new Error('Cannot repaint root panel: no container attached'); + } + this.container.appendChild(frame); + changed += 1; + } + + frame.className = 'vis timeline rootpanel ' + options.orientation + + (options.editable ? ' editable' : ''); + var className = options.className; + if (className) { + util.addClassName(frame, util.option.asString(className)); + } + + changed += update(frame.style, 'top', asSize(options.top, '0px')); + changed += update(frame.style, 'left', asSize(options.left, '0px')); + changed += update(frame.style, 'width', asSize(options.width, '100%')); + changed += update(frame.style, 'height', asSize(options.height, '100%')); + + this._updateWatch(); + + return (changed > 0); +}; + +/** + * Reflow the component + * @return {Boolean} resized + */ +RootPanel.prototype.reflow = function () { + var changed = 0, + update = util.updateProperty, + frame = this.frame; + + if (frame) { + changed += update(this, 'top', frame.offsetTop); + changed += update(this, 'left', frame.offsetLeft); + changed += update(this, 'width', frame.offsetWidth); + changed += update(this, 'height', frame.offsetHeight); + } + else { + changed += 1; + } + + return (changed > 0); +}; + +/** + * Update watching for resize, depending on the current option + * @private + */ +RootPanel.prototype._updateWatch = function () { + var autoResize = this.getOption('autoResize'); + if (autoResize) { + this._watch(); + } + else { + this._unwatch(); + } +}; + +/** + * Watch for changes in the size of the frame. On resize, the Panel will + * automatically redraw itself. + * @private + */ +RootPanel.prototype._watch = function () { + var me = this; + + this._unwatch(); + + var checkSize = function () { + var autoResize = me.getOption('autoResize'); + if (!autoResize) { + // stop watching when the option autoResize is changed to false + me._unwatch(); + return; + } + + if (me.frame) { + // check whether the frame is resized + if ((me.frame.clientWidth != me.width) || + (me.frame.clientHeight != me.height)) { + me.requestReflow(); + } + } + }; + + // TODO: automatically cleanup the event listener when the frame is deleted + util.addEventListener(window, 'resize', checkSize); + + this.watchTimer = setInterval(checkSize, 1000); +}; + +/** + * Stop watching for a resize of the frame. + * @private + */ +RootPanel.prototype._unwatch = function () { + if (this.watchTimer) { + clearInterval(this.watchTimer); + this.watchTimer = undefined; + } + + // TODO: remove event listener on window.resize +}; + +/** + * Set controller for this component, or remove current controller by passing + * null as parameter value. + * @param {Controller | null} controller + */ +RootPanel.prototype.setController = function setController (controller) { + this.controller = controller || null; + + if (this.controller) { + this._registerListeners(); + } + else { + this._unregisterListeners(); + } +}; + +/** + * Register event emitters emitted by the rootpanel + * @private + */ +RootPanel.prototype._registerListeners = function () { + if (this.frame && this.controller && !this.hammer) { + this.hammer = Hammer(this.frame, { + prevent_default: true + }); + + for (var event in this.listeners) { + if (this.listeners.hasOwnProperty(event)) { + this.hammer.on(event, this.listeners[event]); + } + } + } +}; + +/** + * Unregister event emitters from the rootpanel + * @private + */ +RootPanel.prototype._unregisterListeners = function () { + if (this.hammer) { + for (var event in this.listeners) { + if (this.listeners.hasOwnProperty(event)) { + this.hammer.off(event, this.listeners[event]); + } + } + + this.hammer = null; + } +}; + +/** + * A horizontal time axis + * @param {Component} parent + * @param {Component[]} [depends] Components on which this components depends + * (except for the parent) + * @param {Object} [options] See TimeAxis.setOptions for the available + * options. + * @constructor TimeAxis + * @extends Component + */ +function TimeAxis (parent, depends, options) { + this.id = util.randomUUID(); + this.parent = parent; + this.depends = depends; + + this.dom = { + majorLines: [], + majorTexts: [], + minorLines: [], + minorTexts: [], + redundant: { + majorLines: [], + majorTexts: [], + minorLines: [], + minorTexts: [] + } + }; + this.props = { + range: { + start: 0, + end: 0, + minimumStep: 0 + }, + lineTop: 0 + }; + + this.options = options || {}; + this.defaultOptions = { + orientation: 'bottom', // supported: 'top', 'bottom' + // TODO: implement timeaxis orientations 'left' and 'right' + showMinorLabels: true, + showMajorLabels: true + }; + + this.conversion = null; + this.range = null; +} + +TimeAxis.prototype = new Component(); + +// TODO: comment options +TimeAxis.prototype.setOptions = Component.prototype.setOptions; + +/** + * Set a range (start and end) + * @param {Range | Object} range A Range or an object containing start and end. + */ +TimeAxis.prototype.setRange = function (range) { + if (!(range instanceof Range) && (!range || !range.start || !range.end)) { + throw new TypeError('Range must be an instance of Range, ' + + 'or an object containing start and end.'); + } + this.range = range; +}; + +/** + * Convert a position on screen (pixels) to a datetime + * @param {int} x Position on the screen in pixels + * @return {Date} time The datetime the corresponds with given position x + */ +TimeAxis.prototype.toTime = function(x) { + var conversion = this.conversion; + return new Date(x / conversion.scale + conversion.offset); +}; + +/** + * Convert a datetime (Date object) into a position on the screen + * @param {Date} time A date + * @return {int} x The position on the screen in pixels which corresponds + * with the given date. + * @private + */ +TimeAxis.prototype.toScreen = function(time) { + var conversion = this.conversion; + return (time.valueOf() - conversion.offset) * conversion.scale; +}; + +/** + * Repaint the component + * @return {Boolean} changed + */ +TimeAxis.prototype.repaint = function () { + var changed = 0, + update = util.updateProperty, + asSize = util.option.asSize, + options = this.options, + orientation = this.getOption('orientation'), + props = this.props, + step = this.step; + + var frame = this.frame; + if (!frame) { + frame = document.createElement('div'); + this.frame = frame; + changed += 1; + } + frame.className = 'axis'; + // TODO: custom className? + + if (!frame.parentNode) { + if (!this.parent) { + throw new Error('Cannot repaint time axis: no parent attached'); + } + var parentContainer = this.parent.getContainer(); + if (!parentContainer) { + throw new Error('Cannot repaint time axis: parent has no container element'); + } + parentContainer.appendChild(frame); + + changed += 1; + } + + var parent = frame.parentNode; + if (parent) { + var beforeChild = frame.nextSibling; + parent.removeChild(frame); // take frame offline while updating (is almost twice as fast) + + var defaultTop = (orientation == 'bottom' && this.props.parentHeight && this.height) ? + (this.props.parentHeight - this.height) + 'px' : + '0px'; + changed += update(frame.style, 'top', asSize(options.top, defaultTop)); + changed += update(frame.style, 'left', asSize(options.left, '0px')); + changed += update(frame.style, 'width', asSize(options.width, '100%')); + changed += update(frame.style, 'height', asSize(options.height, this.height + 'px')); + + // get characters width and height + this._repaintMeasureChars(); + + if (this.step) { + this._repaintStart(); + + step.first(); + var xFirstMajorLabel = undefined; + var max = 0; + while (step.hasNext() && max < 1000) { + max++; + var cur = step.getCurrent(), + x = this.toScreen(cur), + isMajor = step.isMajor(); + + // TODO: lines must have a width, such that we can create css backgrounds + + if (this.getOption('showMinorLabels')) { + this._repaintMinorText(x, step.getLabelMinor()); + } + + if (isMajor && this.getOption('showMajorLabels')) { + if (x > 0) { + if (xFirstMajorLabel == undefined) { + xFirstMajorLabel = x; + } + this._repaintMajorText(x, step.getLabelMajor()); + } + this._repaintMajorLine(x); + } + else { + this._repaintMinorLine(x); + } + + step.next(); + } + + // create a major label on the left when needed + if (this.getOption('showMajorLabels')) { + var leftTime = this.toTime(0), + leftText = step.getLabelMajor(leftTime), + widthText = leftText.length * (props.majorCharWidth || 10) + 10; // upper bound estimation + + if (xFirstMajorLabel == undefined || widthText < xFirstMajorLabel) { + this._repaintMajorText(0, leftText); + } + } + + this._repaintEnd(); + } + + this._repaintLine(); + + // put frame online again + if (beforeChild) { + parent.insertBefore(frame, beforeChild); + } + else { + parent.appendChild(frame) + } + } + + return (changed > 0); +}; + +/** + * Start a repaint. Move all DOM elements to a redundant list, where they + * can be picked for re-use, or can be cleaned up in the end + * @private + */ +TimeAxis.prototype._repaintStart = function () { + var dom = this.dom, + redundant = dom.redundant; + + redundant.majorLines = dom.majorLines; + redundant.majorTexts = dom.majorTexts; + redundant.minorLines = dom.minorLines; + redundant.minorTexts = dom.minorTexts; + + dom.majorLines = []; + dom.majorTexts = []; + dom.minorLines = []; + dom.minorTexts = []; +}; + +/** + * End a repaint. Cleanup leftover DOM elements in the redundant list + * @private + */ +TimeAxis.prototype._repaintEnd = function () { + util.forEach(this.dom.redundant, function (arr) { + while (arr.length) { + var elem = arr.pop(); + if (elem && elem.parentNode) { + elem.parentNode.removeChild(elem); + } + } + }); +}; + + +/** + * Create a minor label for the axis at position x + * @param {Number} x + * @param {String} text + * @private + */ +TimeAxis.prototype._repaintMinorText = function (x, text) { + // reuse redundant label + var label = this.dom.redundant.minorTexts.shift(); + + if (!label) { + // create new label + var content = document.createTextNode(''); + label = document.createElement('div'); + label.appendChild(content); + label.className = 'text minor'; + this.frame.appendChild(label); + } + this.dom.minorTexts.push(label); + + label.childNodes[0].nodeValue = text; + label.style.left = x + 'px'; + label.style.top = this.props.minorLabelTop + 'px'; + //label.title = title; // TODO: this is a heavy operation +}; + +/** + * Create a Major label for the axis at position x + * @param {Number} x + * @param {String} text + * @private + */ +TimeAxis.prototype._repaintMajorText = function (x, text) { + // reuse redundant label + var label = this.dom.redundant.majorTexts.shift(); + + if (!label) { + // create label + var content = document.createTextNode(text); + label = document.createElement('div'); + label.className = 'text major'; + label.appendChild(content); + this.frame.appendChild(label); + } + this.dom.majorTexts.push(label); + + label.childNodes[0].nodeValue = text; + label.style.top = this.props.majorLabelTop + 'px'; + label.style.left = x + 'px'; + //label.title = title; // TODO: this is a heavy operation +}; + +/** + * Create a minor line for the axis at position x + * @param {Number} x + * @private + */ +TimeAxis.prototype._repaintMinorLine = function (x) { + // reuse redundant line + var line = this.dom.redundant.minorLines.shift(); + + if (!line) { + // create vertical line + line = document.createElement('div'); + line.className = 'grid vertical minor'; + this.frame.appendChild(line); + } + this.dom.minorLines.push(line); + + var props = this.props; + line.style.top = props.minorLineTop + 'px'; + line.style.height = props.minorLineHeight + 'px'; + line.style.left = (x - props.minorLineWidth / 2) + 'px'; +}; + +/** + * Create a Major line for the axis at position x + * @param {Number} x + * @private + */ +TimeAxis.prototype._repaintMajorLine = function (x) { + // reuse redundant line + var line = this.dom.redundant.majorLines.shift(); + + if (!line) { + // create vertical line + line = document.createElement('DIV'); + line.className = 'grid vertical major'; + this.frame.appendChild(line); + } + this.dom.majorLines.push(line); + + var props = this.props; + line.style.top = props.majorLineTop + 'px'; + line.style.left = (x - props.majorLineWidth / 2) + 'px'; + line.style.height = props.majorLineHeight + 'px'; +}; + + +/** + * Repaint the horizontal line for the axis + * @private + */ +TimeAxis.prototype._repaintLine = function() { + var line = this.dom.line, + frame = this.frame, + options = this.options; + + // line before all axis elements + if (this.getOption('showMinorLabels') || this.getOption('showMajorLabels')) { + if (line) { + // put this line at the end of all childs + frame.removeChild(line); + frame.appendChild(line); + } + else { + // create the axis line + line = document.createElement('div'); + line.className = 'grid horizontal major'; + frame.appendChild(line); + this.dom.line = line; + } + + line.style.top = this.props.lineTop + 'px'; + } + else { + if (line && line.parentElement) { + frame.removeChild(line.line); + delete this.dom.line; + } + } +}; + +/** + * Create characters used to determine the size of text on the axis + * @private + */ +TimeAxis.prototype._repaintMeasureChars = function () { + // calculate the width and height of a single character + // this is used to calculate the step size, and also the positioning of the + // axis + var dom = this.dom, + text; + + if (!dom.measureCharMinor) { + text = document.createTextNode('0'); + var measureCharMinor = document.createElement('DIV'); + measureCharMinor.className = 'text minor measure'; + measureCharMinor.appendChild(text); + this.frame.appendChild(measureCharMinor); + + dom.measureCharMinor = measureCharMinor; + } + + if (!dom.measureCharMajor) { + text = document.createTextNode('0'); + var measureCharMajor = document.createElement('DIV'); + measureCharMajor.className = 'text major measure'; + measureCharMajor.appendChild(text); + this.frame.appendChild(measureCharMajor); + + dom.measureCharMajor = measureCharMajor; + } +}; + +/** + * Reflow the component + * @return {Boolean} resized + */ +TimeAxis.prototype.reflow = function () { + var changed = 0, + update = util.updateProperty, + frame = this.frame, + range = this.range; + + if (!range) { + throw new Error('Cannot repaint time axis: no range configured'); + } + + if (frame) { + changed += update(this, 'top', frame.offsetTop); + changed += update(this, 'left', frame.offsetLeft); + + // calculate size of a character + var props = this.props, + showMinorLabels = this.getOption('showMinorLabels'), + showMajorLabels = this.getOption('showMajorLabels'), + measureCharMinor = this.dom.measureCharMinor, + measureCharMajor = this.dom.measureCharMajor; + if (measureCharMinor) { + props.minorCharHeight = measureCharMinor.clientHeight; + props.minorCharWidth = measureCharMinor.clientWidth; + } + if (measureCharMajor) { + props.majorCharHeight = measureCharMajor.clientHeight; + props.majorCharWidth = measureCharMajor.clientWidth; + } + + var parentHeight = frame.parentNode ? frame.parentNode.offsetHeight : 0; + if (parentHeight != props.parentHeight) { + props.parentHeight = parentHeight; + changed += 1; + } + switch (this.getOption('orientation')) { + case 'bottom': + props.minorLabelHeight = showMinorLabels ? props.minorCharHeight : 0; + props.majorLabelHeight = showMajorLabels ? props.majorCharHeight : 0; + + props.minorLabelTop = 0; + props.majorLabelTop = props.minorLabelTop + props.minorLabelHeight; + + props.minorLineTop = -this.top; + props.minorLineHeight = Math.max(this.top + props.majorLabelHeight, 0); + props.minorLineWidth = 1; // TODO: really calculate width + + props.majorLineTop = -this.top; + props.majorLineHeight = Math.max(this.top + props.minorLabelHeight + props.majorLabelHeight, 0); + props.majorLineWidth = 1; // TODO: really calculate width + + props.lineTop = 0; + + break; + + case 'top': + props.minorLabelHeight = showMinorLabels ? props.minorCharHeight : 0; + props.majorLabelHeight = showMajorLabels ? props.majorCharHeight : 0; + + props.majorLabelTop = 0; + props.minorLabelTop = props.majorLabelTop + props.majorLabelHeight; + + props.minorLineTop = props.minorLabelTop; + props.minorLineHeight = Math.max(parentHeight - props.majorLabelHeight - this.top); + props.minorLineWidth = 1; // TODO: really calculate width + + props.majorLineTop = 0; + props.majorLineHeight = Math.max(parentHeight - this.top); + props.majorLineWidth = 1; // TODO: really calculate width + + props.lineTop = props.majorLabelHeight + props.minorLabelHeight; + + break; + + default: + throw new Error('Unkown orientation "' + this.getOption('orientation') + '"'); + } + + var height = props.minorLabelHeight + props.majorLabelHeight; + changed += update(this, 'width', frame.offsetWidth); + changed += update(this, 'height', height); + + // calculate range and step + this._updateConversion(); + + var start = util.convert(range.start, 'Number'), + end = util.convert(range.end, 'Number'), + minimumStep = this.toTime((props.minorCharWidth || 10) * 5).valueOf() + -this.toTime(0).valueOf(); + this.step = new TimeStep(new Date(start), new Date(end), minimumStep); + changed += update(props.range, 'start', start); + changed += update(props.range, 'end', end); + changed += update(props.range, 'minimumStep', minimumStep.valueOf()); + } + + return (changed > 0); +}; + +/** + * Calculate the scale and offset to convert a position on screen to the + * corresponding date and vice versa. + * After the method _updateConversion is executed once, the methods toTime + * and toScreen can be used. + * @private + */ +TimeAxis.prototype._updateConversion = function() { + var range = this.range; + if (!range) { + throw new Error('No range configured'); + } + + if (range.conversion) { + this.conversion = range.conversion(this.width); + } + else { + this.conversion = Range.conversion(range.start, range.end, this.width); + } +}; + +/** + * Snap a date to a rounded value. + * The snap intervals are dependent on the current scale and step. + * @param {Date} date the date to be snapped. + * @return {Date} snappedDate + */ +TimeAxis.prototype.snap = function snap (date) { + return this.step.snap(date); +}; + +/** + * A current time bar + * @param {Component} parent + * @param {Component[]} [depends] Components on which this components depends + * (except for the parent) + * @param {Object} [options] Available parameters: + * {Boolean} [showCurrentTime] + * @constructor CurrentTime + * @extends Component + */ + +function CurrentTime (parent, depends, options) { + this.id = util.randomUUID(); + this.parent = parent; + this.depends = depends; + + this.options = options || {}; + this.defaultOptions = { + showCurrentTime: false + }; +} + +CurrentTime.prototype = new Component(); + +CurrentTime.prototype.setOptions = Component.prototype.setOptions; + +/** + * Get the container element of the bar, which can be used by a child to + * add its own widgets. + * @returns {HTMLElement} container + */ +CurrentTime.prototype.getContainer = function () { + return this.frame; +}; + +/** + * Repaint the component + * @return {Boolean} changed + */ +CurrentTime.prototype.repaint = function () { + var bar = this.frame, + parent = this.parent, + parentContainer = parent.parent.getContainer(); + + if (!parent) { + throw new Error('Cannot repaint bar: no parent attached'); + } + + if (!parentContainer) { + throw new Error('Cannot repaint bar: parent has no container element'); + } + + if (!this.getOption('showCurrentTime')) { + if (bar) { + parentContainer.removeChild(bar); + delete this.frame; + } + + return false; + } + + if (!bar) { + bar = document.createElement('div'); + bar.className = 'currenttime'; + bar.style.position = 'absolute'; + bar.style.top = '0px'; + bar.style.height = '100%'; + + parentContainer.appendChild(bar); + this.frame = bar; + } + + if (!parent.conversion) { + parent._updateConversion(); + } + + var now = new Date(); + var x = parent.toScreen(now); + + bar.style.left = x + 'px'; + bar.title = 'Current time: ' + now; + + // start a timer to adjust for the new time + if (this.currentTimeTimer !== undefined) { + clearTimeout(this.currentTimeTimer); + delete this.currentTimeTimer; + } + + var timeline = this; + var interval = 1 / parent.conversion.scale / 2; + + if (interval < 30) { + interval = 30; + } + + this.currentTimeTimer = setTimeout(function() { + timeline.repaint(); + }, interval); + + return false; +}; + +/** + * A custom time bar + * @param {Component} parent + * @param {Component[]} [depends] Components on which this components depends + * (except for the parent) + * @param {Object} [options] Available parameters: + * {Boolean} [showCustomTime] + * @constructor CustomTime + * @extends Component + */ + +function CustomTime (parent, depends, options) { + this.id = util.randomUUID(); + this.parent = parent; + this.depends = depends; + + this.options = options || {}; + this.defaultOptions = { + showCustomTime: false + }; + + this.customTime = new Date(); + this.eventParams = {}; // stores state parameters while dragging the bar +} + +CustomTime.prototype = new Component(); + +Emitter(CustomTime.prototype); + +CustomTime.prototype.setOptions = Component.prototype.setOptions; + +/** + * Get the container element of the bar, which can be used by a child to + * add its own widgets. + * @returns {HTMLElement} container + */ +CustomTime.prototype.getContainer = function () { + return this.frame; +}; + +/** + * Repaint the component + * @return {Boolean} changed + */ +CustomTime.prototype.repaint = function () { + var bar = this.frame, + parent = this.parent; + + if (!parent) { + throw new Error('Cannot repaint bar: no parent attached'); + } + + var parentContainer = parent.parent.getContainer(); + if (!parentContainer) { + throw new Error('Cannot repaint bar: parent has no container element'); + } + + if (!this.getOption('showCustomTime')) { + if (bar) { + parentContainer.removeChild(bar); + delete this.frame; + } + + return false; + } + + if (!bar) { + bar = document.createElement('div'); + bar.className = 'customtime'; + bar.style.position = 'absolute'; + bar.style.top = '0px'; + bar.style.height = '100%'; + + parentContainer.appendChild(bar); + + var drag = document.createElement('div'); + drag.style.position = 'relative'; + drag.style.top = '0px'; + drag.style.left = '-10px'; + drag.style.height = '100%'; + drag.style.width = '20px'; + bar.appendChild(drag); + + this.frame = bar; + + // attach event listeners + this.hammer = Hammer(bar, { + prevent_default: true + }); + this.hammer.on('dragstart', this._onDragStart.bind(this)); + this.hammer.on('drag', this._onDrag.bind(this)); + this.hammer.on('dragend', this._onDragEnd.bind(this)); + } + + if (!parent.conversion) { + parent._updateConversion(); + } + + var x = parent.toScreen(this.customTime); + + bar.style.left = x + 'px'; + bar.title = 'Time: ' + this.customTime; + + return false; +}; + +/** + * Set custom time. + * @param {Date} time + */ +CustomTime.prototype.setCustomTime = function(time) { + this.customTime = new Date(time.valueOf()); + this.repaint(); +}; + +/** + * Retrieve the current custom time. + * @return {Date} customTime + */ +CustomTime.prototype.getCustomTime = function() { + return new Date(this.customTime.valueOf()); +}; + +/** + * Start moving horizontally + * @param {Event} event + * @private + */ +CustomTime.prototype._onDragStart = function(event) { + this.eventParams.customTime = this.customTime; + + event.stopPropagation(); + event.preventDefault(); +}; + +/** + * Perform moving operating. + * @param {Event} event + * @private + */ +CustomTime.prototype._onDrag = function (event) { + var deltaX = event.gesture.deltaX, + x = this.parent.toScreen(this.eventParams.customTime) + deltaX, + time = this.parent.toTime(x); + + this.setCustomTime(time); + + // fire a timechange event + if (this.controller) { + this.controller.emit('timechange', { + time: this.customTime + }) + } + + event.stopPropagation(); + event.preventDefault(); +}; + +/** + * Stop moving operating. + * @param {event} event + * @private + */ +CustomTime.prototype._onDragEnd = function (event) { + // fire a timechanged event + if (this.controller) { + this.controller.emit('timechanged', { + time: this.customTime + }) + } + + event.stopPropagation(); + event.preventDefault(); +}; + +/** + * An ItemSet holds a set of items and ranges which can be displayed in a + * range. The width is determined by the parent of the ItemSet, and the height + * is determined by the size of the items. + * @param {Component} parent + * @param {Component[]} [depends] Components on which this components depends + * (except for the parent) + * @param {Object} [options] See ItemSet.setOptions for the available + * options. + * @constructor ItemSet + * @extends Panel + */ +// TODO: improve performance by replacing all Array.forEach with a for loop +function ItemSet(parent, depends, options) { + this.id = util.randomUUID(); + this.parent = parent; + this.depends = depends; + + // event listeners + this.eventListeners = { + dragstart: this._onDragStart.bind(this), + drag: this._onDrag.bind(this), + dragend: this._onDragEnd.bind(this) + }; + + // one options object is shared by this itemset and all its items + this.options = options || {}; + this.defaultOptions = { + type: 'box', + align: 'center', + orientation: 'bottom', + margin: { + axis: 20, + item: 10 + }, + padding: 5 + }; + + this.dom = {}; + + var me = this; + this.itemsData = null; // DataSet + this.range = null; // Range or Object {start: number, end: number} + + // data change listeners + this.listeners = { + 'add': function (event, params, senderId) { + if (senderId != me.id) { + me._onAdd(params.items); + } + }, + 'update': function (event, params, senderId) { + if (senderId != me.id) { + me._onUpdate(params.items); + } + }, + 'remove': function (event, params, senderId) { + if (senderId != me.id) { + me._onRemove(params.items); + } + } + }; + + this.items = {}; // object with an Item for every data item + this.selection = []; // list with the ids of all selected nodes + this.queue = {}; // queue with id/actions: 'add', 'update', 'delete' + this.stack = new Stack(this, Object.create(this.options)); + this.conversion = null; + + this.touchParams = {}; // stores properties while dragging + + // TODO: ItemSet should also attach event listeners for rangechange and rangechanged, like timeaxis +} + +ItemSet.prototype = new Panel(); + +// available item types will be registered here +ItemSet.types = { + box: ItemBox, + range: ItemRange, + rangeoverflow: ItemRangeOverflow, + point: ItemPoint +}; + +/** + * Set options for the ItemSet. Existing options will be extended/overwritten. + * @param {Object} [options] The following options are available: + * {String | function} [className] + * class name for the itemset + * {String} [type] + * Default type for the items. Choose from 'box' + * (default), 'point', or 'range'. The default + * Style can be overwritten by individual items. + * {String} align + * Alignment for the items, only applicable for + * ItemBox. Choose 'center' (default), 'left', or + * 'right'. + * {String} orientation + * Orientation of the item set. Choose 'top' or + * 'bottom' (default). + * {Number} margin.axis + * Margin between the axis and the items in pixels. + * Default is 20. + * {Number} margin.item + * Margin between items in pixels. Default is 10. + * {Number} padding + * Padding of the contents of an item in pixels. + * Must correspond with the items css. Default is 5. + * {Function} snap + * Function to let items snap to nice dates when + * dragging items. + */ +ItemSet.prototype.setOptions = Component.prototype.setOptions; + + + +/** + * Set controller for this component + * @param {Controller | null} controller + */ +ItemSet.prototype.setController = function setController (controller) { + var event; + + // unregister old event listeners + if (this.controller) { + for (event in this.eventListeners) { + if (this.eventListeners.hasOwnProperty(event)) { + this.controller.off(event, this.eventListeners[event]); + } + } + } + + this.controller = controller || null; + + // register new event listeners + if (this.controller) { + for (event in this.eventListeners) { + if (this.eventListeners.hasOwnProperty(event)) { + this.controller.on(event, this.eventListeners[event]); + } + } + } +}; + +// attach event listeners for dragging items to the controller +(function (me) { + var _controller = null; + var _onDragStart = null; + var _onDrag = null; + var _onDragEnd = null; + + Object.defineProperty(me, 'controller', { + get: function () { + return _controller; + }, + + set: function (controller) { + + } + }); +}) (this); + + +/** + * Set range (start and end). + * @param {Range | Object} range A Range or an object containing start and end. + */ +ItemSet.prototype.setRange = function setRange(range) { + if (!(range instanceof Range) && (!range || !range.start || !range.end)) { + throw new TypeError('Range must be an instance of Range, ' + + 'or an object containing start and end.'); + } + this.range = range; +}; + +/** + * Set selected items by their id. Replaces the current selection + * Unknown id's are silently ignored. + * @param {Array} [ids] An array with zero or more id's of the items to be + * selected. If ids is an empty array, all items will be + * unselected. + */ +ItemSet.prototype.setSelection = function setSelection(ids) { + var i, ii, id, item, selection; + + if (ids) { + if (!Array.isArray(ids)) { + throw new TypeError('Array expected'); + } + + // unselect currently selected items + for (i = 0, ii = this.selection.length; i < ii; i++) { + id = this.selection[i]; + item = this.items[id]; + if (item) item.unselect(); + } + + // select items + this.selection = []; + for (i = 0, ii = ids.length; i < ii; i++) { + id = ids[i]; + item = this.items[id]; + if (item) { + this.selection.push(id); + item.select(); + } + } + + if (this.controller) { + this.requestRepaint(); + } + } +}; + +/** + * Get the selected items by their id + * @return {Array} ids The ids of the selected items + */ +ItemSet.prototype.getSelection = function getSelection() { + return this.selection.concat([]); +}; + +/** + * Deselect a selected item + * @param {String | Number} id + * @private + */ +ItemSet.prototype._deselect = function _deselect(id) { + var selection = this.selection; + for (var i = 0, ii = selection.length; i < ii; i++) { + if (selection[i] == id) { // non-strict comparison! + selection.splice(i, 1); + break; + } + } +}; + +/** + * Repaint the component + * @return {Boolean} changed + */ +ItemSet.prototype.repaint = function repaint() { + var changed = 0, + update = util.updateProperty, + asSize = util.option.asSize, + options = this.options, + orientation = this.getOption('orientation'), + defaultOptions = this.defaultOptions, + frame = this.frame; + + if (!frame) { + frame = document.createElement('div'); + frame.className = 'itemset'; + frame['timeline-itemset'] = this; + + var className = options.className; + if (className) { + util.addClassName(frame, util.option.asString(className)); + } + + // create background panel + var background = document.createElement('div'); + background.className = 'background'; + frame.appendChild(background); + this.dom.background = background; + + // create foreground panel + var foreground = document.createElement('div'); + foreground.className = 'foreground'; + frame.appendChild(foreground); + this.dom.foreground = foreground; + + // create axis panel + var axis = document.createElement('div'); + axis.className = 'itemset-axis'; + //frame.appendChild(axis); + this.dom.axis = axis; + + this.frame = frame; + changed += 1; + } + + if (!this.parent) { + throw new Error('Cannot repaint itemset: no parent attached'); + } + var parentContainer = this.parent.getContainer(); + if (!parentContainer) { + throw new Error('Cannot repaint itemset: parent has no container element'); + } + if (!frame.parentNode) { + parentContainer.appendChild(frame); + changed += 1; + } + if (!this.dom.axis.parentNode) { + parentContainer.appendChild(this.dom.axis); + changed += 1; + } + + // reposition frame + changed += update(frame.style, 'left', asSize(options.left, '0px')); + changed += update(frame.style, 'top', asSize(options.top, '0px')); + changed += update(frame.style, 'width', asSize(options.width, '100%')); + changed += update(frame.style, 'height', asSize(options.height, this.height + 'px')); + + // reposition axis + changed += update(this.dom.axis.style, 'left', asSize(options.left, '0px')); + changed += update(this.dom.axis.style, 'width', asSize(options.width, '100%')); + if (orientation == 'bottom') { + changed += update(this.dom.axis.style, 'top', (this.height + this.top) + 'px'); + } + else { // orientation == 'top' + changed += update(this.dom.axis.style, 'top', this.top + 'px'); + } + + this._updateConversion(); + + var me = this, + queue = this.queue, + itemsData = this.itemsData, + items = this.items, + dataOptions = { + // TODO: cleanup + // fields: [(itemsData && itemsData.fieldId || 'id'), 'start', 'end', 'content', 'type', 'className'] + }; + + // show/hide added/changed/removed items + for (var id in queue) { + if (queue.hasOwnProperty(id)) { + var entry = queue[id], + item = items[id], + action = entry.action; + + //noinspection FallthroughInSwitchStatementJS + switch (action) { + case 'add': + case 'update': + var itemData = itemsData && itemsData.get(id, dataOptions); + + if (itemData) { + var type = itemData.type || + (itemData.start && itemData.end && 'range') || + options.type || + 'box'; + var constructor = ItemSet.types[type]; + + // TODO: how to handle items with invalid data? hide them and give a warning? or throw an error? + if (item) { + // update item + if (!constructor || !(item instanceof constructor)) { + // item type has changed, hide and delete the item + changed += item.hide(); + item = null; + } + else { + item.data = itemData; // TODO: create a method item.setData ? + changed++; + } + } + + if (!item) { + // create item + if (constructor) { + item = new constructor(me, itemData, options, defaultOptions); + item.id = entry.id; // we take entry.id, as id itself is stringified + changed++; + } + else { + throw new TypeError('Unknown item type "' + type + '"'); + } + } + + // force a repaint (not only a reposition) + item.repaint(); + + items[id] = item; + } + + // update queue + delete queue[id]; + break; + + case 'remove': + if (item) { + // remove the item from the set selected items + if (item.selected) { + me._deselect(id); + } + + // remove DOM of the item + changed += item.hide(); + } + + // update lists + delete items[id]; + delete queue[id]; + break; + + default: + console.log('Error: unknown action "' + action + '"'); + } + } + } + + // reposition all items. Show items only when in the visible area + util.forEach(this.items, function (item) { + if (item.visible) { + changed += item.show(); + item.reposition(); + } + else { + changed += item.hide(); + } + }); + + return (changed > 0); +}; + +/** + * Get the foreground container element + * @return {HTMLElement} foreground + */ +ItemSet.prototype.getForeground = function getForeground() { + return this.dom.foreground; +}; + +/** + * Get the background container element + * @return {HTMLElement} background + */ +ItemSet.prototype.getBackground = function getBackground() { + return this.dom.background; +}; + +/** + * Get the axis container element + * @return {HTMLElement} axis + */ +ItemSet.prototype.getAxis = function getAxis() { + return this.dom.axis; +}; + +/** + * Reflow the component + * @return {Boolean} resized + */ +ItemSet.prototype.reflow = function reflow () { + var changed = 0, + options = this.options, + marginAxis = options.margin && options.margin.axis || this.defaultOptions.margin.axis, + marginItem = options.margin && options.margin.item || this.defaultOptions.margin.item, + update = util.updateProperty, + asNumber = util.option.asNumber, + asSize = util.option.asSize, + frame = this.frame; + + if (frame) { + this._updateConversion(); + + util.forEach(this.items, function (item) { + changed += item.reflow(); + }); + + // TODO: stack.update should be triggered via an event, in stack itself + // TODO: only update the stack when there are changed items + this.stack.update(); + + var maxHeight = asNumber(options.maxHeight); + var fixedHeight = (asSize(options.height) != null); + var height; + if (fixedHeight) { + height = frame.offsetHeight; + } + else { + // height is not specified, determine the height from the height and positioned items + var visibleItems = this.stack.ordered; // TODO: not so nice way to get the filtered items + if (visibleItems.length) { + var min = visibleItems[0].top; + var max = visibleItems[0].top + visibleItems[0].height; + util.forEach(visibleItems, function (item) { + min = Math.min(min, item.top); + max = Math.max(max, (item.top + item.height)); + }); + height = (max - min) + marginAxis + marginItem; + } + else { + height = marginAxis + marginItem; + } + } + if (maxHeight != null) { + height = Math.min(height, maxHeight); + } + changed += update(this, 'height', height); + + // calculate height from items + changed += update(this, 'top', frame.offsetTop); + changed += update(this, 'left', frame.offsetLeft); + changed += update(this, 'width', frame.offsetWidth); + } + else { + changed += 1; + } + + return (changed > 0); +}; + +/** + * Hide this component from the DOM + * @return {Boolean} changed + */ +ItemSet.prototype.hide = function hide() { + var changed = false; + + // remove the DOM + if (this.frame && this.frame.parentNode) { + this.frame.parentNode.removeChild(this.frame); + changed = true; + } + if (this.dom.axis && this.dom.axis.parentNode) { + this.dom.axis.parentNode.removeChild(this.dom.axis); + changed = true; + } + + return changed; +}; + +/** + * Set items + * @param {vis.DataSet | null} items + */ +ItemSet.prototype.setItems = function setItems(items) { + var me = this, + ids, + oldItemsData = this.itemsData; + + // replace the dataset + if (!items) { + this.itemsData = null; + } + else if (items instanceof DataSet || items instanceof DataView) { + this.itemsData = items; + } + else { + throw new TypeError('Data must be an instance of DataSet'); + } + + if (oldItemsData) { + // unsubscribe from old dataset + util.forEach(this.listeners, function (callback, event) { + oldItemsData.unsubscribe(event, callback); + }); + + // remove all drawn items + ids = oldItemsData.getIds(); + this._onRemove(ids); + } + + if (this.itemsData) { + // subscribe to new dataset + var id = this.id; + util.forEach(this.listeners, function (callback, event) { + me.itemsData.on(event, callback, id); + }); + + // draw all new items + ids = this.itemsData.getIds(); + this._onAdd(ids); + } +}; + +/** + * Get the current items items + * @returns {vis.DataSet | null} + */ +ItemSet.prototype.getItems = function getItems() { + return this.itemsData; +}; + +/** + * Remove an item by its id + * @param {String | Number} id + */ +ItemSet.prototype.removeItem = function removeItem (id) { + var item = this.itemsData.get(id), + dataset = this._myDataSet(); + + if (item) { + // confirm deletion + this.options.onRemove(item, function (item) { + if (item) { + dataset.remove(item); + } + }); + } +}; + +/** + * Handle updated items + * @param {Number[]} ids + * @private + */ +ItemSet.prototype._onUpdate = function _onUpdate(ids) { + this._toQueue('update', ids); +}; + +/** + * Handle changed items + * @param {Number[]} ids + * @private + */ +ItemSet.prototype._onAdd = function _onAdd(ids) { + this._toQueue('add', ids); +}; + +/** + * Handle removed items + * @param {Number[]} ids + * @private + */ +ItemSet.prototype._onRemove = function _onRemove(ids) { + this._toQueue('remove', ids); +}; + +/** + * Put items in the queue to be added/updated/remove + * @param {String} action can be 'add', 'update', 'remove' + * @param {Number[]} ids + */ +ItemSet.prototype._toQueue = function _toQueue(action, ids) { + var queue = this.queue; + ids.forEach(function (id) { + queue[id] = { + id: id, + action: action + }; + }); + + if (this.controller) { + //this.requestReflow(); + this.requestRepaint(); + } +}; + +/** + * Calculate the scale and offset to convert a position on screen to the + * corresponding date and vice versa. + * After the method _updateConversion is executed once, the methods toTime + * and toScreen can be used. + * @private + */ +ItemSet.prototype._updateConversion = function _updateConversion() { + var range = this.range; + if (!range) { + throw new Error('No range configured'); + } + + if (range.conversion) { + this.conversion = range.conversion(this.width); + } + else { + this.conversion = Range.conversion(range.start, range.end, this.width); + } +}; + +/** + * Convert a position on screen (pixels) to a datetime + * Before this method can be used, the method _updateConversion must be + * executed once. + * @param {int} x Position on the screen in pixels + * @return {Date} time The datetime the corresponds with given position x + */ +ItemSet.prototype.toTime = function toTime(x) { + var conversion = this.conversion; + return new Date(x / conversion.scale + conversion.offset); +}; + +/** + * Convert a datetime (Date object) into a position on the screen + * Before this method can be used, the method _updateConversion must be + * executed once. + * @param {Date} time A date + * @return {int} x The position on the screen in pixels which corresponds + * with the given date. + */ +ItemSet.prototype.toScreen = function toScreen(time) { + var conversion = this.conversion; + return (time.valueOf() - conversion.offset) * conversion.scale; +}; + +/** + * Start dragging the selected events + * @param {Event} event + * @private + */ +ItemSet.prototype._onDragStart = function (event) { + if (!this.options.editable) { + return; + } + + var item = ItemSet.itemFromTarget(event), + me = this; + + if (item && item.selected) { + var dragLeftItem = event.target.dragLeftItem; + var dragRightItem = event.target.dragRightItem; + + if (dragLeftItem) { + this.touchParams.itemProps = [{ + item: dragLeftItem, + start: item.data.start.valueOf() + }]; + } + else if (dragRightItem) { + this.touchParams.itemProps = [{ + item: dragRightItem, + end: item.data.end.valueOf() + }]; + } + else { + this.touchParams.itemProps = this.getSelection().map(function (id) { + var item = me.items[id]; + var props = { + item: item + }; + + if ('start' in item.data) { + props.start = item.data.start.valueOf() + } + if ('end' in item.data) { + props.end = item.data.end.valueOf() + } + + return props; + }); + } + + event.stopPropagation(); + } +}; + +/** + * Drag selected items + * @param {Event} event + * @private + */ +ItemSet.prototype._onDrag = function (event) { + if (this.touchParams.itemProps) { + var snap = this.options.snap || null, + deltaX = event.gesture.deltaX, + offset = deltaX / this.conversion.scale; + + // move + this.touchParams.itemProps.forEach(function (props) { + if ('start' in props) { + var start = new Date(props.start + offset); + props.item.data.start = snap ? snap(start) : start; + } + if ('end' in props) { + var end = new Date(props.end + offset); + props.item.data.end = snap ? snap(end) : end; + } + }); + + // TODO: implement onMoving handler + + // TODO: implement dragging from one group to another + + this.requestReflow(); + + event.stopPropagation(); + } +}; + +/** + * End of dragging selected items + * @param {Event} event + * @private + */ +ItemSet.prototype._onDragEnd = function (event) { + if (this.touchParams.itemProps) { + // prepare a change set for the changed items + var changes = [], + me = this, + dataset = this._myDataSet(), + type; + + this.touchParams.itemProps.forEach(function (props) { + var id = props.item.id, + item = me.itemsData.get(id); + + var changed = false; + if ('start' in props.item.data) { + changed = (props.start != props.item.data.start.valueOf()); + item.start = util.convert(props.item.data.start, dataset.convert['start']); + } + if ('end' in props.item.data) { + changed = changed || (props.end != props.item.data.end.valueOf()); + item.end = util.convert(props.item.data.end, dataset.convert['end']); + } + + // only apply changes when start or end is actually changed + if (changed) { + me.options.onMove(item, function (item) { + if (item) { + // apply changes + changes.push(item); + } + else { + // restore original values + if ('start' in props) props.item.data.start = props.start; + if ('end' in props) props.item.data.end = props.end; + me.requestReflow(); + } + }); + } + }); + this.touchParams.itemProps = null; + + // apply the changes to the data (if there are changes) + if (changes.length) { + dataset.update(changes); + } + + event.stopPropagation(); + } +}; + +/** + * Find an item from an event target: + * searches for the attribute 'timeline-item' in the event target's element tree + * @param {Event} event + * @return {Item | null} item + */ +ItemSet.itemFromTarget = function itemFromTarget (event) { + var target = event.target; + while (target) { + if (target.hasOwnProperty('timeline-item')) { + return target['timeline-item']; + } + target = target.parentNode; + } + + return null; +}; + +/** + * Find the ItemSet from an event target: + * searches for the attribute 'timeline-itemset' in the event target's element tree + * @param {Event} event + * @return {ItemSet | null} item + */ +ItemSet.itemSetFromTarget = function itemSetFromTarget (event) { + var target = event.target; + while (target) { + if (target.hasOwnProperty('timeline-itemset')) { + return target['timeline-itemset']; + } + target = target.parentNode; + } + + return null; +}; + +/** + * Find the DataSet to which this ItemSet is connected + * @returns {null | DataSet} dataset + * @private + */ +ItemSet.prototype._myDataSet = function _myDataSet() { + // find the root DataSet + var dataset = this.itemsData; + while (dataset instanceof DataView) { + dataset = dataset.data; + } + return dataset; +}; +/** + * @constructor Item + * @param {ItemSet} parent + * @param {Object} data Object containing (optional) parameters type, + * start, end, content, group, className. + * @param {Object} [options] Options to set initial property values + * @param {Object} [defaultOptions] default options + * // TODO: describe available options + */ +function Item (parent, data, options, defaultOptions) { + this.parent = parent; + this.data = data; + this.dom = null; + this.options = options || {}; + this.defaultOptions = defaultOptions || {}; + + this.selected = false; + this.visible = false; + this.top = 0; + this.left = 0; + this.width = 0; + this.height = 0; + this.offset = 0; +} + +/** + * Select current item + */ +Item.prototype.select = function select() { + this.selected = true; + if (this.visible) this.repaint(); +}; + +/** + * Unselect current item + */ +Item.prototype.unselect = function unselect() { + this.selected = false; + if (this.visible) this.repaint(); +}; + +/** + * Show the Item in the DOM (when not already visible) + * @return {Boolean} changed + */ +Item.prototype.show = function show() { + return false; +}; + +/** + * Hide the Item from the DOM (when visible) + * @return {Boolean} changed + */ +Item.prototype.hide = function hide() { + return false; +}; + +/** + * Repaint the item + * @return {Boolean} changed + */ +Item.prototype.repaint = function repaint() { + // should be implemented by the item + return false; +}; + +/** + * Reflow the item + * @return {Boolean} resized + */ +Item.prototype.reflow = function reflow() { + // should be implemented by the item + return false; +}; + +/** + * Give the item a display offset in pixels + * @param {Number} offset Offset on screen in pixels + */ +Item.prototype.setOffset = function setOffset(offset) { + this.offset = offset; +}; + +/** + * Repaint a delete button on the top right of the item when the item is selected + * @param {HTMLElement} anchor + * @private + */ +Item.prototype._repaintDeleteButton = function (anchor) { + if (this.selected && this.options.editable && !this.dom.deleteButton) { + // create and show button + var parent = this.parent; + var id = this.id; + + var deleteButton = document.createElement('div'); + deleteButton.className = 'delete'; + deleteButton.title = 'Delete this item'; + + Hammer(deleteButton, { + preventDefault: true + }).on('tap', function (event) { + parent.removeItem(id); + event.stopPropagation(); + }); + + anchor.appendChild(deleteButton); + this.dom.deleteButton = deleteButton; + } + else if (!this.selected && this.dom.deleteButton) { + // remove button + if (this.dom.deleteButton.parentNode) { + this.dom.deleteButton.parentNode.removeChild(this.dom.deleteButton); + } + this.dom.deleteButton = null; + } +}; + +/** + * @constructor ItemBox + * @extends Item + * @param {ItemSet} parent + * @param {Object} data Object containing parameters start + * content, className. + * @param {Object} [options] Options to set initial property values + * @param {Object} [defaultOptions] default options + * // TODO: describe available options + */ +function ItemBox (parent, data, options, defaultOptions) { + this.props = { + dot: { + left: 0, + top: 0, + width: 0, + height: 0 + }, + line: { + top: 0, + left: 0, + width: 0, + height: 0 + } + }; + + Item.call(this, parent, data, options, defaultOptions); +} + +ItemBox.prototype = new Item (null, null); + +/** + * Repaint the item + * @return {Boolean} changed + */ +ItemBox.prototype.repaint = function repaint() { + // TODO: make an efficient repaint + var changed = false; + var dom = this.dom; + + if (!dom) { + this._create(); + dom = this.dom; + changed = true; + } + + if (dom) { + if (!this.parent) { + throw new Error('Cannot repaint item: no parent attached'); + } + + if (!dom.box.parentNode) { + var foreground = this.parent.getForeground(); + if (!foreground) { + throw new Error('Cannot repaint time axis: ' + + 'parent has no foreground container element'); + } + foreground.appendChild(dom.box); + changed = true; + } + + if (!dom.line.parentNode) { + var background = this.parent.getBackground(); + if (!background) { + throw new Error('Cannot repaint time axis: ' + + 'parent has no background container element'); + } + background.appendChild(dom.line); + changed = true; + } + + if (!dom.dot.parentNode) { + var axis = this.parent.getAxis(); + if (!background) { + throw new Error('Cannot repaint time axis: ' + + 'parent has no axis container element'); + } + axis.appendChild(dom.dot); + changed = true; + } + + this._repaintDeleteButton(dom.box); + + // update contents + if (this.data.content != this.content) { + this.content = this.data.content; + if (this.content instanceof Element) { + dom.content.innerHTML = ''; + dom.content.appendChild(this.content); + } + else if (this.data.content != undefined) { + dom.content.innerHTML = this.content; + } + else { + throw new Error('Property "content" missing in item ' + this.data.id); + } + changed = true; + } + + // update class + var className = (this.data.className? ' ' + this.data.className : '') + + (this.selected ? ' selected' : ''); + if (this.className != className) { + this.className = className; + dom.box.className = 'item box' + className; + dom.line.className = 'item line' + className; + dom.dot.className = 'item dot' + className; + changed = true; + } + } + + return changed; +}; + +/** + * Show the item in the DOM (when not already visible). The items DOM will + * be created when needed. + * @return {Boolean} changed + */ +ItemBox.prototype.show = function show() { + if (!this.dom || !this.dom.box.parentNode) { + return this.repaint(); + } + else { + return false; + } +}; + +/** + * Hide the item from the DOM (when visible) + * @return {Boolean} changed + */ +ItemBox.prototype.hide = function hide() { + var changed = false, + dom = this.dom; + if (dom) { + if (dom.box.parentNode) { + dom.box.parentNode.removeChild(dom.box); + changed = true; + } + if (dom.line.parentNode) { + dom.line.parentNode.removeChild(dom.line); + } + if (dom.dot.parentNode) { + dom.dot.parentNode.removeChild(dom.dot); + } + } + return changed; +}; + +/** + * Reflow the item: calculate its actual size and position from the DOM + * @return {boolean} resized returns true if the axis is resized + * @override + */ +ItemBox.prototype.reflow = function reflow() { + var changed = 0, + update, + dom, + props, + options, + margin, + start, + align, + orientation, + top, + left, + data, + range; + + if (this.data.start == undefined) { + throw new Error('Property "start" missing in item ' + this.data.id); + } + + data = this.data; + range = this.parent && this.parent.range; + if (data && range) { + // TODO: account for the width of the item + var interval = (range.end - range.start); + this.visible = (data.start > range.start - interval) && (data.start < range.end + interval); + } + else { + this.visible = false; + } + + if (this.visible) { + dom = this.dom; + if (dom) { + update = util.updateProperty; + props = this.props; + options = this.options; + start = this.parent.toScreen(this.data.start) + this.offset; + align = options.align || this.defaultOptions.align; + margin = options.margin && options.margin.axis || this.defaultOptions.margin.axis; + orientation = options.orientation || this.defaultOptions.orientation; + + changed += update(props.dot, 'height', dom.dot.offsetHeight); + changed += update(props.dot, 'width', dom.dot.offsetWidth); + changed += update(props.line, 'width', dom.line.offsetWidth); + changed += update(props.line, 'height', dom.line.offsetHeight); + changed += update(props.line, 'top', dom.line.offsetTop); + changed += update(this, 'width', dom.box.offsetWidth); + changed += update(this, 'height', dom.box.offsetHeight); + if (align == 'right') { + left = start - this.width; + } + else if (align == 'left') { + left = start; + } + else { + // default or 'center' + left = start - this.width / 2; + } + changed += update(this, 'left', left); + + changed += update(props.line, 'left', start - props.line.width / 2); + changed += update(props.dot, 'left', start - props.dot.width / 2); + changed += update(props.dot, 'top', -props.dot.height / 2); + if (orientation == 'top') { + top = margin; + + changed += update(this, 'top', top); + } + else { + // default or 'bottom' + var parentHeight = this.parent.height; + top = parentHeight - this.height - margin; + + changed += update(this, 'top', top); + } + } + else { + changed += 1; + } + } + + return (changed > 0); +}; + +/** + * Create an items DOM + * @private + */ +ItemBox.prototype._create = function _create() { + var dom = this.dom; + if (!dom) { + this.dom = dom = {}; + + // create the box + dom.box = document.createElement('DIV'); + // className is updated in repaint() + + // contents box (inside the background box). used for making margins + dom.content = document.createElement('DIV'); + dom.content.className = 'content'; + dom.box.appendChild(dom.content); + + // line to axis + dom.line = document.createElement('DIV'); + dom.line.className = 'line'; + + // dot on axis + dom.dot = document.createElement('DIV'); + dom.dot.className = 'dot'; + + // attach this item as attribute + dom.box['timeline-item'] = this; + } +}; + +/** + * Reposition the item, recalculate its left, top, and width, using the current + * range and size of the items itemset + * @override + */ +ItemBox.prototype.reposition = function reposition() { + var dom = this.dom, + props = this.props, + orientation = this.options.orientation || this.defaultOptions.orientation; + + if (dom) { + var box = dom.box, + line = dom.line, + dot = dom.dot; + + box.style.left = this.left + 'px'; + box.style.top = this.top + 'px'; + + line.style.left = props.line.left + 'px'; + if (orientation == 'top') { + line.style.top = 0 + 'px'; + line.style.height = this.top + 'px'; + } + else { + // orientation 'bottom' + line.style.top = (this.top + this.height) + 'px'; + line.style.height = Math.max(this.parent.height - this.top - this.height + + this.props.dot.height / 2, 0) + 'px'; + } + + dot.style.left = props.dot.left + 'px'; + dot.style.top = props.dot.top + 'px'; + } +}; + +/** + * @constructor ItemPoint + * @extends Item + * @param {ItemSet} parent + * @param {Object} data Object containing parameters start + * content, className. + * @param {Object} [options] Options to set initial property values + * @param {Object} [defaultOptions] default options + * // TODO: describe available options + */ +function ItemPoint (parent, data, options, defaultOptions) { + this.props = { + dot: { + top: 0, + width: 0, + height: 0 + }, + content: { + height: 0, + marginLeft: 0 + } + }; + + Item.call(this, parent, data, options, defaultOptions); +} + +ItemPoint.prototype = new Item (null, null); + +/** + * Repaint the item + * @return {Boolean} changed + */ +ItemPoint.prototype.repaint = function repaint() { + // TODO: make an efficient repaint + var changed = false; + var dom = this.dom; + + if (!dom) { + this._create(); + dom = this.dom; + changed = true; + } + + if (dom) { + if (!this.parent) { + throw new Error('Cannot repaint item: no parent attached'); + } + var foreground = this.parent.getForeground(); + if (!foreground) { + throw new Error('Cannot repaint time axis: ' + + 'parent has no foreground container element'); + } + + if (!dom.point.parentNode) { + foreground.appendChild(dom.point); + foreground.appendChild(dom.point); + changed = true; + } + + // update contents + if (this.data.content != this.content) { + this.content = this.data.content; + if (this.content instanceof Element) { + dom.content.innerHTML = ''; + dom.content.appendChild(this.content); + } + else if (this.data.content != undefined) { + dom.content.innerHTML = this.content; + } + else { + throw new Error('Property "content" missing in item ' + this.data.id); + } + changed = true; + } + + this._repaintDeleteButton(dom.point); + + // update class + var className = (this.data.className? ' ' + this.data.className : '') + + (this.selected ? ' selected' : ''); + if (this.className != className) { + this.className = className; + dom.point.className = 'item point' + className; + changed = true; + } + } + + return changed; +}; + +/** + * Show the item in the DOM (when not already visible). The items DOM will + * be created when needed. + * @return {Boolean} changed + */ +ItemPoint.prototype.show = function show() { + if (!this.dom || !this.dom.point.parentNode) { + return this.repaint(); + } + else { + return false; + } +}; + +/** + * Hide the item from the DOM (when visible) + * @return {Boolean} changed + */ +ItemPoint.prototype.hide = function hide() { + var changed = false, + dom = this.dom; + if (dom) { + if (dom.point.parentNode) { + dom.point.parentNode.removeChild(dom.point); + changed = true; + } + } + return changed; +}; + +/** + * Reflow the item: calculate its actual size from the DOM + * @return {boolean} resized returns true if the axis is resized + * @override + */ +ItemPoint.prototype.reflow = function reflow() { + var changed = 0, + update, + dom, + props, + options, + margin, + orientation, + start, + top, + data, + range; + + if (this.data.start == undefined) { + throw new Error('Property "start" missing in item ' + this.data.id); + } + + data = this.data; + range = this.parent && this.parent.range; + if (data && range) { + // TODO: account for the width of the item + var interval = (range.end - range.start); + this.visible = (data.start > range.start - interval) && (data.start < range.end); + } + else { + this.visible = false; + } + + if (this.visible) { + dom = this.dom; + if (dom) { + update = util.updateProperty; + props = this.props; + options = this.options; + orientation = options.orientation || this.defaultOptions.orientation; + margin = options.margin && options.margin.axis || this.defaultOptions.margin.axis; + start = this.parent.toScreen(this.data.start) + this.offset; + + changed += update(this, 'width', dom.point.offsetWidth); + changed += update(this, 'height', dom.point.offsetHeight); + changed += update(props.dot, 'width', dom.dot.offsetWidth); + changed += update(props.dot, 'height', dom.dot.offsetHeight); + changed += update(props.content, 'height', dom.content.offsetHeight); + + if (orientation == 'top') { + top = margin; + } + else { + // default or 'bottom' + var parentHeight = this.parent.height; + top = Math.max(parentHeight - this.height - margin, 0); + } + changed += update(this, 'top', top); + changed += update(this, 'left', start - props.dot.width / 2); + changed += update(props.content, 'marginLeft', 1.5 * props.dot.width); + //changed += update(props.content, 'marginRight', 0.5 * props.dot.width); // TODO + + changed += update(props.dot, 'top', (this.height - props.dot.height) / 2); + } + else { + changed += 1; + } + } + + return (changed > 0); +}; + +/** + * Create an items DOM + * @private + */ +ItemPoint.prototype._create = function _create() { + var dom = this.dom; + if (!dom) { + this.dom = dom = {}; + + // background box + dom.point = document.createElement('div'); + // className is updated in repaint() + + // contents box, right from the dot + dom.content = document.createElement('div'); + dom.content.className = 'content'; + dom.point.appendChild(dom.content); + + // dot at start + dom.dot = document.createElement('div'); + dom.dot.className = 'dot'; + dom.point.appendChild(dom.dot); + + // attach this item as attribute + dom.point['timeline-item'] = this; + } +}; + +/** + * Reposition the item, recalculate its left, top, and width, using the current + * range and size of the items itemset + * @override + */ +ItemPoint.prototype.reposition = function reposition() { + var dom = this.dom, + props = this.props; + + if (dom) { + dom.point.style.top = this.top + 'px'; + dom.point.style.left = this.left + 'px'; + + dom.content.style.marginLeft = props.content.marginLeft + 'px'; + //dom.content.style.marginRight = props.content.marginRight + 'px'; // TODO + + dom.dot.style.top = props.dot.top + 'px'; + } +}; + +/** + * @constructor ItemRange + * @extends Item + * @param {ItemSet} parent + * @param {Object} data Object containing parameters start, end + * content, className. + * @param {Object} [options] Options to set initial property values + * @param {Object} [defaultOptions] default options + * // TODO: describe available options + */ +function ItemRange (parent, data, options, defaultOptions) { + this.props = { + content: { + left: 0, + width: 0 + } + }; + + Item.call(this, parent, data, options, defaultOptions); +} + +ItemRange.prototype = new Item (null, null); + +/** + * Repaint the item + * @return {Boolean} changed + */ +ItemRange.prototype.repaint = function repaint() { + // TODO: make an efficient repaint + var changed = false; + var dom = this.dom; + + if (!dom) { + this._create(); + dom = this.dom; + changed = true; + } + + if (dom) { + if (!this.parent) { + throw new Error('Cannot repaint item: no parent attached'); + } + var foreground = this.parent.getForeground(); + if (!foreground) { + throw new Error('Cannot repaint time axis: ' + + 'parent has no foreground container element'); + } + + if (!dom.box.parentNode) { + foreground.appendChild(dom.box); + changed = true; + } + + // update content + if (this.data.content != this.content) { + this.content = this.data.content; + if (this.content instanceof Element) { + dom.content.innerHTML = ''; + dom.content.appendChild(this.content); + } + else if (this.data.content != undefined) { + dom.content.innerHTML = this.content; + } + else { + throw new Error('Property "content" missing in item ' + this.data.id); + } + changed = true; + } + + this._repaintDeleteButton(dom.box); + this._repaintDragLeft(); + this._repaintDragRight(); + + // update class + var className = (this.data.className ? (' ' + this.data.className) : '') + + (this.selected ? ' selected' : ''); + if (this.className != className) { + this.className = className; + dom.box.className = 'item range' + className; + changed = true; + } + } + + return changed; +}; + +/** + * Show the item in the DOM (when not already visible). The items DOM will + * be created when needed. + * @return {Boolean} changed + */ +ItemRange.prototype.show = function show() { + if (!this.dom || !this.dom.box.parentNode) { + return this.repaint(); + } + else { + return false; + } +}; + +/** + * Hide the item from the DOM (when visible) + * @return {Boolean} changed + */ +ItemRange.prototype.hide = function hide() { + var changed = false, + dom = this.dom; + if (dom) { + if (dom.box.parentNode) { + dom.box.parentNode.removeChild(dom.box); + changed = true; + } + } + return changed; +}; + +/** + * Reflow the item: calculate its actual size from the DOM + * @return {boolean} resized returns true if the axis is resized + * @override + */ +ItemRange.prototype.reflow = function reflow() { + var changed = 0, + dom, + props, + options, + margin, + padding, + parent, + start, + end, + data, + range, + update, + box, + parentWidth, + contentLeft, + orientation, + top; + + if (this.data.start == undefined) { + throw new Error('Property "start" missing in item ' + this.data.id); + } + if (this.data.end == undefined) { + throw new Error('Property "end" missing in item ' + this.data.id); + } + + data = this.data; + range = this.parent && this.parent.range; + if (data && range) { + // TODO: account for the width of the item. Take some margin + this.visible = (data.start < range.end) && (data.end > range.start); + } + else { + this.visible = false; + } + + if (this.visible) { + dom = this.dom; + if (dom) { + props = this.props; + options = this.options; + parent = this.parent; + start = parent.toScreen(this.data.start) + this.offset; + end = parent.toScreen(this.data.end) + this.offset; + update = util.updateProperty; + box = dom.box; + parentWidth = parent.width; + orientation = options.orientation || this.defaultOptions.orientation; + margin = options.margin && options.margin.axis || this.defaultOptions.margin.axis; + padding = options.padding || this.defaultOptions.padding; + + changed += update(props.content, 'width', dom.content.offsetWidth); + + changed += update(this, 'height', box.offsetHeight); + + // limit the width of the this, as browsers cannot draw very wide divs + if (start < -parentWidth) { + start = -parentWidth; + } + if (end > 2 * parentWidth) { + end = 2 * parentWidth; + } + + // when range exceeds left of the window, position the contents at the left of the visible area + if (start < 0) { + contentLeft = Math.min(-start, + (end - start - props.content.width - 2 * padding)); + // TODO: remove the need for options.padding. it's terrible. + } + else { + contentLeft = 0; + } + changed += update(props.content, 'left', contentLeft); + + if (orientation == 'top') { + top = margin; + changed += update(this, 'top', top); + } + else { + // default or 'bottom' + top = parent.height - this.height - margin; + changed += update(this, 'top', top); + } + + changed += update(this, 'left', start); + changed += update(this, 'width', Math.max(end - start, 1)); // TODO: reckon with border width; + } + else { + changed += 1; + } + } + + return (changed > 0); +}; + +/** + * Create an items DOM + * @private + */ +ItemRange.prototype._create = function _create() { + var dom = this.dom; + if (!dom) { + this.dom = dom = {}; + // background box + dom.box = document.createElement('div'); + // className is updated in repaint() + + // contents box + dom.content = document.createElement('div'); + dom.content.className = 'content'; + dom.box.appendChild(dom.content); + + // attach this item as attribute + dom.box['timeline-item'] = this; + } +}; + +/** + * Reposition the item, recalculate its left, top, and width, using the current + * range and size of the items itemset + * @override + */ +ItemRange.prototype.reposition = function reposition() { + var dom = this.dom, + props = this.props; + + if (dom) { + dom.box.style.top = this.top + 'px'; + dom.box.style.left = this.left + 'px'; + dom.box.style.width = this.width + 'px'; + + dom.content.style.left = props.content.left + 'px'; + } +}; + +/** + * Repaint a drag area on the left side of the range when the range is selected + * @private + */ +ItemRange.prototype._repaintDragLeft = function () { + if (this.selected && this.options.editable && !this.dom.dragLeft) { + // create and show drag area + var dragLeft = document.createElement('div'); + dragLeft.className = 'drag-left'; + dragLeft.dragLeftItem = this; + + // TODO: this should be redundant? + Hammer(dragLeft, { + preventDefault: true + }).on('drag', function () { + //console.log('drag left') + }); + + this.dom.box.appendChild(dragLeft); + this.dom.dragLeft = dragLeft; + } + else if (!this.selected && this.dom.dragLeft) { + // delete drag area + if (this.dom.dragLeft.parentNode) { + this.dom.dragLeft.parentNode.removeChild(this.dom.dragLeft); + } + this.dom.dragLeft = null; + } +}; + +/** + * Repaint a drag area on the right side of the range when the range is selected + * @private + */ +ItemRange.prototype._repaintDragRight = function () { + if (this.selected && this.options.editable && !this.dom.dragRight) { + // create and show drag area + var dragRight = document.createElement('div'); + dragRight.className = 'drag-right'; + dragRight.dragRightItem = this; + + // TODO: this should be redundant? + Hammer(dragRight, { + preventDefault: true + }).on('drag', function () { + //console.log('drag right') + }); + + this.dom.box.appendChild(dragRight); + this.dom.dragRight = dragRight; + } + else if (!this.selected && this.dom.dragRight) { + // delete drag area + if (this.dom.dragRight.parentNode) { + this.dom.dragRight.parentNode.removeChild(this.dom.dragRight); + } + this.dom.dragRight = null; + } +}; + +/** + * @constructor ItemRangeOverflow + * @extends ItemRange + * @param {ItemSet} parent + * @param {Object} data Object containing parameters start, end + * content, className. + * @param {Object} [options] Options to set initial property values + * @param {Object} [defaultOptions] default options + * // TODO: describe available options + */ +function ItemRangeOverflow (parent, data, options, defaultOptions) { + this.props = { + content: { + left: 0, + width: 0 + } + }; + + // define a private property _width, which is the with of the range box + // adhering to the ranges start and end date. The property width has a + // getter which returns the max of border width and content width + this._width = 0; + Object.defineProperty(this, 'width', { + get: function () { + return (this.props.content && this._width < this.props.content.width) ? + this.props.content.width : + this._width; + }, + + set: function (width) { + this._width = width; + } + }); + + ItemRange.call(this, parent, data, options, defaultOptions); +} + +ItemRangeOverflow.prototype = new ItemRange (null, null); + +/** + * Repaint the item + * @return {Boolean} changed + */ +ItemRangeOverflow.prototype.repaint = function repaint() { + // TODO: make an efficient repaint + var changed = false; + var dom = this.dom; + + if (!dom) { + this._create(); + dom = this.dom; + changed = true; + } + + if (dom) { + if (!this.parent) { + throw new Error('Cannot repaint item: no parent attached'); + } + var foreground = this.parent.getForeground(); + if (!foreground) { + throw new Error('Cannot repaint time axis: ' + + 'parent has no foreground container element'); + } + + if (!dom.box.parentNode) { + foreground.appendChild(dom.box); + changed = true; + } + + // update content + if (this.data.content != this.content) { + this.content = this.data.content; + if (this.content instanceof Element) { + dom.content.innerHTML = ''; + dom.content.appendChild(this.content); + } + else if (this.data.content != undefined) { + dom.content.innerHTML = this.content; + } + else { + throw new Error('Property "content" missing in item ' + this.id); + } + changed = true; + } + + this._repaintDeleteButton(dom.box); + this._repaintDragLeft(); + this._repaintDragRight(); + + // update class + var className = (this.data.className? ' ' + this.data.className : '') + + (this.selected ? ' selected' : ''); + if (this.className != className) { + this.className = className; + dom.box.className = 'item rangeoverflow' + className; + changed = true; + } + } + + return changed; +}; + +/** + * Reposition the item, recalculate its left, top, and width, using the current + * range and size of the items itemset + * @override + */ +ItemRangeOverflow.prototype.reposition = function reposition() { + var dom = this.dom, + props = this.props; + + if (dom) { + dom.box.style.top = this.top + 'px'; + dom.box.style.left = this.left + 'px'; + dom.box.style.width = this._width + 'px'; + + dom.content.style.left = props.content.left + 'px'; + } +}; + +/** + * @constructor Group + * @param {GroupSet} parent + * @param {Number | String} groupId + * @param {Object} [options] Options to set initial property values + * // TODO: describe available options + * @extends Component + */ +function Group (parent, groupId, options) { + this.id = util.randomUUID(); + this.parent = parent; + + this.groupId = groupId; + this.itemset = null; // ItemSet + this.options = options || {}; + this.options.top = 0; + + this.props = { + label: { + width: 0, + height: 0 + } + }; + + this.top = 0; + this.left = 0; + this.width = 0; + this.height = 0; +} + +Group.prototype = new Component(); + +// TODO: comment +Group.prototype.setOptions = Component.prototype.setOptions; + +/** + * Get the container element of the panel, which can be used by a child to + * add its own widgets. + * @returns {HTMLElement} container + */ +Group.prototype.getContainer = function () { + return this.parent.getContainer(); +}; + +/** + * Set item set for the group. The group will create a view on the itemset, + * filtered by the groups id. + * @param {DataSet | DataView} items + */ +Group.prototype.setItems = function setItems(items) { + if (this.itemset) { + // remove current item set + this.itemset.hide(); + this.itemset.setItems(); + + this.parent.controller.remove(this.itemset); + this.itemset = null; + } + + if (items) { + var groupId = this.groupId; + + var itemsetOptions = Object.create(this.options); + this.itemset = new ItemSet(this, null, itemsetOptions); + this.itemset.setRange(this.parent.range); + + this.view = new DataView(items, { + filter: function (item) { + return item.group == groupId; + } + }); + this.itemset.setItems(this.view); + + this.parent.controller.add(this.itemset); + } +}; + +/** + * Set selected items by their id. Replaces the current selection. + * Unknown id's are silently ignored. + * @param {Array} [ids] An array with zero or more id's of the items to be + * selected. If ids is an empty array, all items will be + * unselected. + */ +Group.prototype.setSelection = function setSelection(ids) { + if (this.itemset) this.itemset.setSelection(ids); +}; + +/** + * Get the selected items by their id + * @return {Array} ids The ids of the selected items + */ +Group.prototype.getSelection = function getSelection() { + return this.itemset ? this.itemset.getSelection() : []; +}; + +/** + * Repaint the item + * @return {Boolean} changed + */ +Group.prototype.repaint = function repaint() { + return false; +}; + +/** + * Reflow the item + * @return {Boolean} resized + */ +Group.prototype.reflow = function reflow() { + var changed = 0, + update = util.updateProperty; + + changed += update(this, 'top', this.itemset ? this.itemset.top : 0); + changed += update(this, 'height', this.itemset ? this.itemset.height : 0); + + // TODO: reckon with the height of the group label + + if (this.label) { + var inner = this.label.firstChild; + changed += update(this.props.label, 'width', inner.clientWidth); + changed += update(this.props.label, 'height', inner.clientHeight); + } + else { + changed += update(this.props.label, 'width', 0); + changed += update(this.props.label, 'height', 0); + } + + return (changed > 0); +}; + +/** + * An GroupSet holds a set of groups + * @param {Component} parent + * @param {Component[]} [depends] Components on which this components depends + * (except for the parent) + * @param {Object} [options] See GroupSet.setOptions for the available + * options. + * @constructor GroupSet + * @extends Panel + */ +function GroupSet(parent, depends, options) { + this.id = util.randomUUID(); + this.parent = parent; + this.depends = depends; + + this.options = options || {}; + + this.range = null; // Range or Object {start: number, end: number} + this.itemsData = null; // DataSet with items + this.groupsData = null; // DataSet with groups + + this.groups = {}; // map with groups + + this.dom = {}; + this.props = { + labels: { + width: 0 + } + }; + + // TODO: implement right orientation of the labels + + // changes in groups are queued key/value map containing id/action + this.queue = {}; + + var me = this; + this.listeners = { + 'add': function (event, params) { + me._onAdd(params.items); + }, + 'update': function (event, params) { + me._onUpdate(params.items); + }, + 'remove': function (event, params) { + me._onRemove(params.items); + } + }; +} + +GroupSet.prototype = new Panel(); + +/** + * Set options for the GroupSet. Existing options will be extended/overwritten. + * @param {Object} [options] The following options are available: + * {String | function} groupsOrder + * TODO: describe options + */ +GroupSet.prototype.setOptions = Component.prototype.setOptions; + +GroupSet.prototype.setRange = function (range) { + // TODO: implement setRange +}; + +/** + * Set items + * @param {vis.DataSet | null} items + */ +GroupSet.prototype.setItems = function setItems(items) { + this.itemsData = items; + + for (var id in this.groups) { + if (this.groups.hasOwnProperty(id)) { + var group = this.groups[id]; + group.setItems(items); + } + } +}; + +/** + * Get items + * @return {vis.DataSet | null} items + */ +GroupSet.prototype.getItems = function getItems() { + return this.itemsData; +}; + +/** + * Set range (start and end). + * @param {Range | Object} range A Range or an object containing start and end. + */ +GroupSet.prototype.setRange = function setRange(range) { + this.range = range; +}; + +/** + * Set groups + * @param {vis.DataSet} groups + */ +GroupSet.prototype.setGroups = function setGroups(groups) { + var me = this, + ids; + + // unsubscribe from current dataset + if (this.groupsData) { + util.forEach(this.listeners, function (callback, event) { + me.groupsData.unsubscribe(event, callback); + }); + + // remove all drawn groups + ids = this.groupsData.getIds(); + this._onRemove(ids); + } + + // replace the dataset + if (!groups) { + this.groupsData = null; + } + else if (groups instanceof DataSet) { + this.groupsData = groups; + } + else { + this.groupsData = new DataSet({ + convert: { + start: 'Date', + end: 'Date' + } + }); + this.groupsData.add(groups); + } + + if (this.groupsData) { + // subscribe to new dataset + var id = this.id; + util.forEach(this.listeners, function (callback, event) { + me.groupsData.on(event, callback, id); + }); + + // draw all new groups + ids = this.groupsData.getIds(); + this._onAdd(ids); + } +}; + +/** + * Get groups + * @return {vis.DataSet | null} groups + */ +GroupSet.prototype.getGroups = function getGroups() { + return this.groupsData; +}; + +/** + * Set selected items by their id. Replaces the current selection. + * Unknown id's are silently ignored. + * @param {Array} [ids] An array with zero or more id's of the items to be + * selected. If ids is an empty array, all items will be + * unselected. + */ +GroupSet.prototype.setSelection = function setSelection(ids) { + var selection = [], + groups = this.groups; + + // iterate over each of the groups + for (var id in groups) { + if (groups.hasOwnProperty(id)) { + var group = groups[id]; + group.setSelection(ids); + } + } + + return selection; +}; + +/** + * Get the selected items by their id + * @return {Array} ids The ids of the selected items + */ +GroupSet.prototype.getSelection = function getSelection() { + var selection = [], + groups = this.groups; + + // iterate over each of the groups + for (var id in groups) { + if (groups.hasOwnProperty(id)) { + var group = groups[id]; + selection = selection.concat(group.getSelection()); + } + } + + return selection; +}; + +/** + * Repaint the component + * @return {Boolean} changed + */ +GroupSet.prototype.repaint = function repaint() { + var changed = 0, + i, id, group, label, + update = util.updateProperty, + asSize = util.option.asSize, + asElement = util.option.asElement, + options = this.options, + frame = this.dom.frame, + labels = this.dom.labels, + labelSet = this.dom.labelSet; + + // create frame + if (!this.parent) { + throw new Error('Cannot repaint groupset: no parent attached'); + } + var parentContainer = this.parent.getContainer(); + if (!parentContainer) { + throw new Error('Cannot repaint groupset: parent has no container element'); + } + if (!frame) { + frame = document.createElement('div'); + frame.className = 'groupset'; + frame['timeline-groupset'] = this; + this.dom.frame = frame; + + var className = options.className; + if (className) { + util.addClassName(frame, util.option.asString(className)); + } + + changed += 1; + } + if (!frame.parentNode) { + parentContainer.appendChild(frame); + changed += 1; + } + + // create labels + var labelContainer = asElement(options.labelContainer); + if (!labelContainer) { + throw new Error('Cannot repaint groupset: option "labelContainer" not defined'); + } + if (!labels) { + labels = document.createElement('div'); + labels.className = 'labels'; + this.dom.labels = labels; + } + if (!labelSet) { + labelSet = document.createElement('div'); + labelSet.className = 'label-set'; + labels.appendChild(labelSet); + this.dom.labelSet = labelSet; + } + if (!labels.parentNode || labels.parentNode != labelContainer) { + if (labels.parentNode) { + labels.parentNode.removeChild(labels.parentNode); + } + labelContainer.appendChild(labels); + } + + // reposition frame + changed += update(frame.style, 'height', asSize(options.height, this.height + 'px')); + changed += update(frame.style, 'top', asSize(options.top, '0px')); + changed += update(frame.style, 'left', asSize(options.left, '0px')); + changed += update(frame.style, 'width', asSize(options.width, '100%')); + + // reposition labels + changed += update(labelSet.style, 'top', asSize(options.top, '0px')); + changed += update(labelSet.style, 'height', asSize(options.height, this.height + 'px')); + + var me = this, + queue = this.queue, + groups = this.groups, + groupsData = this.groupsData; + + // show/hide added/changed/removed groups + var ids = Object.keys(queue); + if (ids.length) { + ids.forEach(function (id) { + var action = queue[id]; + var group = groups[id]; + + //noinspection FallthroughInSwitchStatementJS + switch (action) { + case 'add': + case 'update': + if (!group) { + var groupOptions = Object.create(me.options); + util.extend(groupOptions, { + height: null, + maxHeight: null + }); + + group = new Group(me, id, groupOptions); + group.setItems(me.itemsData); // attach items data + groups[id] = group; + + me.controller.add(group); + } + + // TODO: update group data + group.data = groupsData.get(id); + + delete queue[id]; + break; + + case 'remove': + if (group) { + group.setItems(); // detach items data + delete groups[id]; + + me.controller.remove(group); + } + + // update lists + delete queue[id]; + break; + + default: + console.log('Error: unknown action "' + action + '"'); + } + }); + + // the groupset depends on each of the groups + //this.depends = this.groups; // TODO: gives a circular reference through the parent + + // TODO: apply dependencies of the groupset + + // update the top positions of the groups in the correct order + var orderedGroups = this.groupsData.getIds({ + order: this.options.groupOrder + }); + for (i = 0; i < orderedGroups.length; i++) { + (function (group, prevGroup) { + var top = 0; + if (prevGroup) { + top = function () { + // TODO: top must reckon with options.maxHeight + return prevGroup.top + prevGroup.height; + } + } + group.setOptions({ + top: top + }); + })(groups[orderedGroups[i]], groups[orderedGroups[i - 1]]); + } + + // (re)create the labels + while (labelSet.firstChild) { + labelSet.removeChild(labelSet.firstChild); + } + for (i = 0; i < orderedGroups.length; i++) { + id = orderedGroups[i]; + label = this._createLabel(id); + labelSet.appendChild(label); + } + + changed++; + } + + // reposition the labels + // TODO: labels are not displayed correctly when orientation=='top' + // TODO: width of labelPanel is not immediately updated on a change in groups + for (id in groups) { + if (groups.hasOwnProperty(id)) { + group = groups[id]; + label = group.label; + if (label) { + label.style.top = group.top + 'px'; + label.style.height = group.height + 'px'; + } + } + } + + return (changed > 0); +}; + +/** + * Create a label for group with given id + * @param {Number} id + * @return {Element} label + * @private + */ +GroupSet.prototype._createLabel = function(id) { + var group = this.groups[id]; + var label = document.createElement('div'); + label.className = 'vlabel'; + var inner = document.createElement('div'); + inner.className = 'inner'; + label.appendChild(inner); + + var content = group.data && group.data.content; + if (content instanceof Element) { + inner.appendChild(content); + } + else if (content != undefined) { + inner.innerHTML = content; + } + + var className = group.data && group.data.className; + if (className) { + util.addClassName(label, className); + } + + group.label = label; // TODO: not so nice, parking labels in the group this way!!! + + return label; +}; + +/** + * Get container element + * @return {HTMLElement} container + */ +GroupSet.prototype.getContainer = function getContainer() { + return this.dom.frame; +}; + +/** + * Get the width of the group labels + * @return {Number} width + */ +GroupSet.prototype.getLabelsWidth = function getContainer() { + return this.props.labels.width; +}; + +/** + * Reflow the component + * @return {Boolean} resized + */ +GroupSet.prototype.reflow = function reflow() { + var changed = 0, + id, group, + options = this.options, + update = util.updateProperty, + asNumber = util.option.asNumber, + asSize = util.option.asSize, + frame = this.dom.frame; + + if (frame) { + var maxHeight = asNumber(options.maxHeight); + var fixedHeight = (asSize(options.height) != null); + var height; + if (fixedHeight) { + height = frame.offsetHeight; + } + else { + // height is not specified, calculate the sum of the height of all groups + height = 0; + + for (id in this.groups) { + if (this.groups.hasOwnProperty(id)) { + group = this.groups[id]; + height += group.height; + } + } + } + if (maxHeight != null) { + height = Math.min(height, maxHeight); + } + changed += update(this, 'height', height); + + changed += update(this, 'top', frame.offsetTop); + changed += update(this, 'left', frame.offsetLeft); + changed += update(this, 'width', frame.offsetWidth); + } + + // calculate the maximum width of the labels + var width = 0; + for (id in this.groups) { + if (this.groups.hasOwnProperty(id)) { + group = this.groups[id]; + var labelWidth = group.props && group.props.label && group.props.label.width || 0; + width = Math.max(width, labelWidth); + } + } + changed += update(this.props.labels, 'width', width); + + return (changed > 0); +}; + +/** + * Hide the component from the DOM + * @return {Boolean} changed + */ +GroupSet.prototype.hide = function hide() { + if (this.dom.frame && this.dom.frame.parentNode) { + this.dom.frame.parentNode.removeChild(this.dom.frame); + return true; + } + else { + return false; + } +}; + +/** + * Show the component in the DOM (when not already visible). + * A repaint will be executed when the component is not visible + * @return {Boolean} changed + */ +GroupSet.prototype.show = function show() { + if (!this.dom.frame || !this.dom.frame.parentNode) { + return this.repaint(); + } + else { + return false; + } +}; + +/** + * Handle updated groups + * @param {Number[]} ids + * @private + */ +GroupSet.prototype._onUpdate = function _onUpdate(ids) { + this._toQueue(ids, 'update'); +}; + +/** + * Handle changed groups + * @param {Number[]} ids + * @private + */ +GroupSet.prototype._onAdd = function _onAdd(ids) { + this._toQueue(ids, 'add'); +}; + +/** + * Handle removed groups + * @param {Number[]} ids + * @private + */ +GroupSet.prototype._onRemove = function _onRemove(ids) { + this._toQueue(ids, 'remove'); +}; + +/** + * Put groups in the queue to be added/updated/remove + * @param {Number[]} ids + * @param {String} action can be 'add', 'update', 'remove' + */ +GroupSet.prototype._toQueue = function _toQueue(ids, action) { + var queue = this.queue; + ids.forEach(function (id) { + queue[id] = action; + }); + + if (this.controller) { + //this.requestReflow(); + this.requestRepaint(); + } +}; + +/** + * Find the Group from an event target: + * searches for the attribute 'timeline-groupset' in the event target's element + * tree, then finds the right group in this groupset + * @param {Event} event + * @return {Group | null} group + */ +GroupSet.groupFromTarget = function groupFromTarget (event) { + var groupset, + target = event.target; + + while (target) { + if (target.hasOwnProperty('timeline-groupset')) { + groupset = target['timeline-groupset']; + break; + } + target = target.parentNode; + } + + if (groupset) { + for (var groupId in groupset.groups) { + if (groupset.groups.hasOwnProperty(groupId)) { + var group = groupset.groups[groupId]; + if (group.itemset && ItemSet.itemSetFromTarget(event) == group.itemset) { + return group; + } + } + } + } + + return null; +}; + +/** + * Create a timeline visualization + * @param {HTMLElement} container + * @param {vis.DataSet | Array | google.visualization.DataTable} [items] + * @param {Object} [options] See Timeline.setOptions for the available options. + * @constructor + */ +function Timeline (container, items, options) { + var me = this; + var now = moment().hours(0).minutes(0).seconds(0).milliseconds(0); + this.options = { + orientation: 'bottom', + autoResize: true, + editable: false, + selectable: true, + snap: null, // will be specified after timeaxis is created + + min: null, + max: null, + zoomMin: 10, // milliseconds + zoomMax: 1000 * 60 * 60 * 24 * 365 * 10000, // milliseconds + // moveable: true, // TODO: option moveable + // zoomable: true, // TODO: option zoomable + + showMinorLabels: true, + showMajorLabels: true, + showCurrentTime: false, + showCustomTime: false, + + onAdd: function (item, callback) { + callback(item); + }, + onUpdate: function (item, callback) { + callback(item); + }, + onMove: function (item, callback) { + callback(item); + }, + onRemove: function (item, callback) { + callback(item); + } + }; + + // controller + this.controller = new Controller(); + + // root panel + if (!container) { + throw new Error('No container element provided'); + } + var rootOptions = Object.create(this.options); + rootOptions.height = function () { + // TODO: change to height + if (me.options.height) { + // fixed height + return me.options.height; + } + else { + // auto height + return (me.timeaxis.height + me.content.height) + 'px'; + } + }; + this.rootPanel = new RootPanel(container, rootOptions); + this.controller.add(this.rootPanel); + + // single select (or unselect) when tapping an item + this.controller.on('tap', this._onSelectItem.bind(this)); + + // multi select when holding mouse/touch, or on ctrl+click + this.controller.on('hold', this._onMultiSelectItem.bind(this)); + + // add item on doubletap + this.controller.on('doubletap', this._onAddItem.bind(this)); + + // item panel + var itemOptions = Object.create(this.options); + itemOptions.left = function () { + return me.labelPanel.width; + }; + itemOptions.width = function () { + return me.rootPanel.width - me.labelPanel.width; + }; + itemOptions.top = null; + itemOptions.height = null; + this.itemPanel = new Panel(this.rootPanel, [], itemOptions); + this.controller.add(this.itemPanel); + + // label panel + var labelOptions = Object.create(this.options); + labelOptions.top = null; + labelOptions.left = null; + labelOptions.height = null; + labelOptions.width = function () { + if (me.content && typeof me.content.getLabelsWidth === 'function') { + return me.content.getLabelsWidth(); + } + else { + return 0; + } + }; + this.labelPanel = new Panel(this.rootPanel, [], labelOptions); + this.controller.add(this.labelPanel); + + // range + var rangeOptions = Object.create(this.options); + this.range = new Range(rangeOptions); + this.range.setRange( + now.clone().add('days', -3).valueOf(), + now.clone().add('days', 4).valueOf() + ); + + this.range.subscribe(this.controller, this.rootPanel, 'move', 'horizontal'); + this.range.subscribe(this.controller, this.rootPanel, 'zoom', 'horizontal'); + this.range.on('rangechange', function (properties) { + var force = true; + me.controller.emit('rangechange', properties); + me.controller.emit('request-reflow', force); + }); + this.range.on('rangechanged', function (properties) { + var force = true; + me.controller.emit('rangechanged', properties); + me.controller.emit('request-reflow', force); + }); + + // time axis + var timeaxisOptions = Object.create(rootOptions); + timeaxisOptions.range = this.range; + timeaxisOptions.left = null; + timeaxisOptions.top = null; + timeaxisOptions.width = '100%'; + timeaxisOptions.height = null; + this.timeaxis = new TimeAxis(this.itemPanel, [], timeaxisOptions); + this.timeaxis.setRange(this.range); + this.controller.add(this.timeaxis); + this.options.snap = this.timeaxis.snap.bind(this.timeaxis); + + // current time bar + this.currenttime = new CurrentTime(this.timeaxis, [], rootOptions); + this.controller.add(this.currenttime); + + // custom time bar + this.customtime = new CustomTime(this.timeaxis, [], rootOptions); + this.controller.add(this.customtime); + + // create groupset + this.setGroups(null); + + this.itemsData = null; // DataSet + this.groupsData = null; // DataSet + + // apply options + if (options) { + this.setOptions(options); + } + + // create itemset and groupset + if (items) { + this.setItems(items); + } +} + +/** + * Add an event listener to the timeline + * @param {String} event Available events: select, rangechange, rangechanged, + * timechange, timechanged + * @param {function} callback + */ +Timeline.prototype.on = function on (event, callback) { + this.controller.on(event, callback); +}; + +/** + * Add an event listener from the timeline + * @param {String} event + * @param {function} callback + */ +Timeline.prototype.off = function off (event, callback) { + this.controller.off(event, callback); +}; + +/** + * Set options + * @param {Object} options TODO: describe the available options + */ +Timeline.prototype.setOptions = function (options) { + util.extend(this.options, options); + + // force update of range (apply new min/max etc.) + // both start and end are optional + this.range.setRange(options.start, options.end); + + if ('editable' in options || 'selectable' in options) { + if (this.options.selectable) { + // force update of selection + this.setSelection(this.getSelection()); + } + else { + // remove selection + this.setSelection([]); + } + } + + // validate the callback functions + var validateCallback = (function (fn) { + if (!(this.options[fn] instanceof Function) || this.options[fn].length != 2) { + throw new Error('option ' + fn + ' must be a function ' + fn + '(item, callback)'); + } + }).bind(this); + ['onAdd', 'onUpdate', 'onRemove', 'onMove'].forEach(validateCallback); + + this.controller.reflow(); + this.controller.repaint(); +}; + +/** + * Set a custom time bar + * @param {Date} time + */ +Timeline.prototype.setCustomTime = function (time) { + if (!this.customtime) { + throw new Error('Cannot get custom time: Custom time bar is not enabled'); + } + + this.customtime.setCustomTime(time); +}; + +/** + * Retrieve the current custom time. + * @return {Date} customTime + */ +Timeline.prototype.getCustomTime = function() { + if (!this.customtime) { + throw new Error('Cannot get custom time: Custom time bar is not enabled'); + } + + return this.customtime.getCustomTime(); +}; + +/** + * Set items + * @param {vis.DataSet | Array | google.visualization.DataTable | null} items + */ +Timeline.prototype.setItems = function(items) { + var initialLoad = (this.itemsData == null); + + // convert to type DataSet when needed + var newDataSet; + if (!items) { + newDataSet = null; + } + else if (items instanceof DataSet) { + newDataSet = items; + } + if (!(items instanceof DataSet)) { + newDataSet = new DataSet({ + convert: { + start: 'Date', + end: 'Date' + } + }); + newDataSet.add(items); + } + + // set items + this.itemsData = newDataSet; + this.content.setItems(newDataSet); + + if (initialLoad && (this.options.start == undefined || this.options.end == undefined)) { + // apply the data range as range + var dataRange = this.getItemRange(); + + // add 5% space on both sides + var start = dataRange.min; + var end = dataRange.max; + if (start != null && end != null) { + var interval = (end.valueOf() - start.valueOf()); + if (interval <= 0) { + // prevent an empty interval + interval = 24 * 60 * 60 * 1000; // 1 day + } + start = new Date(start.valueOf() - interval * 0.05); + end = new Date(end.valueOf() + interval * 0.05); + } + + // override specified start and/or end date + if (this.options.start != undefined) { + start = util.convert(this.options.start, 'Date'); + } + if (this.options.end != undefined) { + end = util.convert(this.options.end, 'Date'); + } + + // apply range if there is a min or max available + if (start != null || end != null) { + this.range.setRange(start, end); + } + } +}; + +/** + * Set groups + * @param {vis.DataSet | Array | google.visualization.DataTable} groups + */ +Timeline.prototype.setGroups = function(groups) { + var me = this; + this.groupsData = groups; + + // switch content type between ItemSet or GroupSet when needed + var Type = this.groupsData ? GroupSet : ItemSet; + if (!(this.content instanceof Type)) { + // remove old content set + if (this.content) { + this.content.hide(); + if (this.content.setItems) { + this.content.setItems(); // disconnect from items + } + if (this.content.setGroups) { + this.content.setGroups(); // disconnect from groups + } + this.controller.remove(this.content); + } + + // create new content set + var options = Object.create(this.options); + util.extend(options, { + top: function () { + if (me.options.orientation == 'top') { + return me.timeaxis.height; + } + else { + return me.itemPanel.height - me.timeaxis.height - me.content.height; + } + }, + left: null, + width: '100%', + height: function () { + if (me.options.height) { + // fixed height + return me.itemPanel.height - me.timeaxis.height; + } + else { + // auto height + return null; + } + }, + maxHeight: function () { + // TODO: change maxHeight to be a css string like '100%' or '300px' + if (me.options.maxHeight) { + if (!util.isNumber(me.options.maxHeight)) { + throw new TypeError('Number expected for property maxHeight'); + } + return me.options.maxHeight - me.timeaxis.height; + } + else { + return null; + } + }, + labelContainer: function () { + return me.labelPanel.getContainer(); + } + }); + + this.content = new Type(this.itemPanel, [this.timeaxis], options); + if (this.content.setRange) { + this.content.setRange(this.range); + } + if (this.content.setItems) { + this.content.setItems(this.itemsData); + } + if (this.content.setGroups) { + this.content.setGroups(this.groupsData); + } + this.controller.add(this.content); + } +}; + +/** + * Get the data range of the item set. + * @returns {{min: Date, max: Date}} range A range with a start and end Date. + * When no minimum is found, min==null + * When no maximum is found, max==null + */ +Timeline.prototype.getItemRange = function getItemRange() { + // calculate min from start filed + var itemsData = this.itemsData, + min = null, + max = null; + + if (itemsData) { + // calculate the minimum value of the field 'start' + var minItem = itemsData.min('start'); + min = minItem ? minItem.start.valueOf() : null; + + // calculate maximum value of fields 'start' and 'end' + var maxStartItem = itemsData.max('start'); + if (maxStartItem) { + max = maxStartItem.start.valueOf(); + } + var maxEndItem = itemsData.max('end'); + if (maxEndItem) { + if (max == null) { + max = maxEndItem.end.valueOf(); + } + else { + max = Math.max(max, maxEndItem.end.valueOf()); + } + } + } + + return { + min: (min != null) ? new Date(min) : null, + max: (max != null) ? new Date(max) : null + }; +}; + +/** + * Set selected items by their id. Replaces the current selection + * Unknown id's are silently ignored. + * @param {Array} [ids] An array with zero or more id's of the items to be + * selected. If ids is an empty array, all items will be + * unselected. + */ +Timeline.prototype.setSelection = function setSelection (ids) { + if (this.content) this.content.setSelection(ids); +}; + +/** + * Get the selected items by their id + * @return {Array} ids The ids of the selected items + */ +Timeline.prototype.getSelection = function getSelection() { + return this.content ? this.content.getSelection() : []; +}; + +/** + * Set the visible window. Both parameters are optional, you can change only + * start or only end. + * @param {Date | Number | String} [start] Start date of visible window + * @param {Date | Number | String} [end] End date of visible window + */ +Timeline.prototype.setWindow = function setWindow(start, end) { + this.range.setRange(start, end); +}; + +/** + * Get the visible window + * @return {{start: Date, end: Date}} Visible range + */ +Timeline.prototype.getWindow = function setWindow() { + var range = this.range.getRange(); + return { + start: new Date(range.start), + end: new Date(range.end) + }; +}; + +/** + * Handle selecting/deselecting an item when tapping it + * @param {Event} event + * @private + */ +// TODO: move this function to ItemSet +Timeline.prototype._onSelectItem = function (event) { + if (!this.options.selectable) return; + + var ctrlKey = event.gesture.srcEvent && event.gesture.srcEvent.ctrlKey; + var shiftKey = event.gesture.srcEvent && event.gesture.srcEvent.shiftKey; + if (ctrlKey || shiftKey) { + this._onMultiSelectItem(event); + return; + } + + var item = ItemSet.itemFromTarget(event); + + var selection = item ? [item.id] : []; + this.setSelection(selection); + + this.controller.emit('select', { + items: this.getSelection() + }); + + event.stopPropagation(); +}; + +/** + * Handle creation and updates of an item on double tap + * @param event + * @private + */ +Timeline.prototype._onAddItem = function (event) { + if (!this.options.selectable) return; + if (!this.options.editable) return; + + var me = this, + item = ItemSet.itemFromTarget(event); + + if (item) { + // update item + + // execute async handler to update the item (or cancel it) + var itemData = me.itemsData.get(item.id); // get a clone of the data from the dataset + this.options.onUpdate(itemData, function (itemData) { + if (itemData) { + me.itemsData.update(itemData); + } + }); + } + else { + // add item + var xAbs = vis.util.getAbsoluteLeft(this.rootPanel.frame); + var x = event.gesture.center.pageX - xAbs; + var newItem = { + start: this.timeaxis.snap(this._toTime(x)), + content: 'new item' + }; + + var id = util.randomUUID(); + newItem[this.itemsData.fieldId] = id; + + var group = GroupSet.groupFromTarget(event); + if (group) { + newItem.group = group.groupId; + } + + // execute async handler to customize (or cancel) adding an item + this.options.onAdd(newItem, function (item) { + if (item) { + me.itemsData.add(newItem); + + // select the created item after it is repainted + me.controller.once('repaint', function () { + me.setSelection([id]); + + me.controller.emit('select', { + items: me.getSelection() + }); + }.bind(me)); + } + }); + } +}; + +/** + * Handle selecting/deselecting multiple items when holding an item + * @param {Event} event + * @private + */ +// TODO: move this function to ItemSet +Timeline.prototype._onMultiSelectItem = function (event) { + if (!this.options.selectable) return; + + var selection, + item = ItemSet.itemFromTarget(event); + + if (item) { + // multi select items + selection = this.getSelection(); // current selection + var index = selection.indexOf(item.id); + if (index == -1) { + // item is not yet selected -> select it + selection.push(item.id); + } + else { + // item is already selected -> deselect it + selection.splice(index, 1); + } + this.setSelection(selection); + + this.controller.emit('select', { + items: this.getSelection() + }); + + event.stopPropagation(); + } +}; + +/** + * Convert a position on screen (pixels) to a datetime + * @param {int} x Position on the screen in pixels + * @return {Date} time The datetime the corresponds with given position x + * @private + */ +Timeline.prototype._toTime = function _toTime(x) { + var conversion = this.range.conversion(this.content.width); + return new Date(x / conversion.scale + conversion.offset); +}; + +/** + * Convert a datetime (Date object) into a position on the screen + * @param {Date} time A date + * @return {int} x The position on the screen in pixels which corresponds + * with the given date. + * @private + */ +Timeline.prototype._toScreen = function _toScreen(time) { + var conversion = this.range.conversion(this.content.width); + return (time.valueOf() - conversion.offset) * conversion.scale; +}; + +(function(exports) { + /** + * Parse a text source containing data in DOT language into a JSON object. + * The object contains two lists: one with nodes and one with edges. + * + * DOT language reference: http://www.graphviz.org/doc/info/lang.html + * + * @param {String} data Text containing a graph in DOT-notation + * @return {Object} graph An object containing two parameters: + * {Object[]} nodes + * {Object[]} edges + */ + function parseDOT (data) { + dot = data; + return parseGraph(); + } + + // token types enumeration + var TOKENTYPE = { + NULL : 0, + DELIMITER : 1, + IDENTIFIER: 2, + UNKNOWN : 3 + }; + + // map with all delimiters + var DELIMITERS = { + '{': true, + '}': true, + '[': true, + ']': true, + ';': true, + '=': true, + ',': true, + + '->': true, + '--': true + }; + + var dot = ''; // current dot file + var index = 0; // current index in dot file + var c = ''; // current token character in expr + var token = ''; // current token + var tokenType = TOKENTYPE.NULL; // type of the token + + /** + * Get the first character from the dot file. + * The character is stored into the char c. If the end of the dot file is + * reached, the function puts an empty string in c. + */ + function first() { + index = 0; + c = dot.charAt(0); + } + + /** + * Get the next character from the dot file. + * The character is stored into the char c. If the end of the dot file is + * reached, the function puts an empty string in c. + */ + function next() { + index++; + c = dot.charAt(index); + } + + /** + * Preview the next character from the dot file. + * @return {String} cNext + */ + function nextPreview() { + return dot.charAt(index + 1); + } + + /** + * Test whether given character is alphabetic or numeric + * @param {String} c + * @return {Boolean} isAlphaNumeric + */ + var regexAlphaNumeric = /[a-zA-Z_0-9.:#]/; + function isAlphaNumeric(c) { + return regexAlphaNumeric.test(c); + } + + /** + * Merge all properties of object b into object b + * @param {Object} a + * @param {Object} b + * @return {Object} a + */ + function merge (a, b) { + if (!a) { + a = {}; + } + + if (b) { + for (var name in b) { + if (b.hasOwnProperty(name)) { + a[name] = b[name]; + } + } + } + return a; + } + + /** + * Set a value in an object, where the provided parameter name can be a + * path with nested parameters. For example: + * + * var obj = {a: 2}; + * setValue(obj, 'b.c', 3); // obj = {a: 2, b: {c: 3}} + * + * @param {Object} obj + * @param {String} path A parameter name or dot-separated parameter path, + * like "color.highlight.border". + * @param {*} value + */ + function setValue(obj, path, value) { + var keys = path.split('.'); + var o = obj; + while (keys.length) { + var key = keys.shift(); + if (keys.length) { + // this isn't the end point + if (!o[key]) { + o[key] = {}; + } + o = o[key]; + } + else { + // this is the end point + o[key] = value; + } + } + } + + /** + * Add a node to a graph object. If there is already a node with + * the same id, their attributes will be merged. + * @param {Object} graph + * @param {Object} node + */ + function addNode(graph, node) { + var i, len; + var current = null; + + // find root graph (in case of subgraph) + var graphs = [graph]; // list with all graphs from current graph to root graph + var root = graph; + while (root.parent) { + graphs.push(root.parent); + root = root.parent; + } + + // find existing node (at root level) by its id + if (root.nodes) { + for (i = 0, len = root.nodes.length; i < len; i++) { + if (node.id === root.nodes[i].id) { + current = root.nodes[i]; + break; + } + } + } + + if (!current) { + // this is a new node + current = { + id: node.id + }; + if (graph.node) { + // clone default attributes + current.attr = merge(current.attr, graph.node); + } + } + + // add node to this (sub)graph and all its parent graphs + for (i = graphs.length - 1; i >= 0; i--) { + var g = graphs[i]; + + if (!g.nodes) { + g.nodes = []; + } + if (g.nodes.indexOf(current) == -1) { + g.nodes.push(current); + } + } + + // merge attributes + if (node.attr) { + current.attr = merge(current.attr, node.attr); + } + } + + /** + * Add an edge to a graph object + * @param {Object} graph + * @param {Object} edge + */ + function addEdge(graph, edge) { + if (!graph.edges) { + graph.edges = []; + } + graph.edges.push(edge); + if (graph.edge) { + var attr = merge({}, graph.edge); // clone default attributes + edge.attr = merge(attr, edge.attr); // merge attributes + } + } + + /** + * Create an edge to a graph object + * @param {Object} graph + * @param {String | Number | Object} from + * @param {String | Number | Object} to + * @param {String} type + * @param {Object | null} attr + * @return {Object} edge + */ + function createEdge(graph, from, to, type, attr) { + var edge = { + from: from, + to: to, + type: type + }; + + if (graph.edge) { + edge.attr = merge({}, graph.edge); // clone default attributes + } + edge.attr = merge(edge.attr || {}, attr); // merge attributes + + return edge; + } + + /** + * Get next token in the current dot file. + * The token and token type are available as token and tokenType + */ + function getToken() { + tokenType = TOKENTYPE.NULL; + token = ''; + + // skip over whitespaces + while (c == ' ' || c == '\t' || c == '\n' || c == '\r') { // space, tab, enter + next(); + } + + do { + var isComment = false; + + // skip comment + if (c == '#') { + // find the previous non-space character + var i = index - 1; + while (dot.charAt(i) == ' ' || dot.charAt(i) == '\t') { + i--; + } + if (dot.charAt(i) == '\n' || dot.charAt(i) == '') { + // the # is at the start of a line, this is indeed a line comment + while (c != '' && c != '\n') { + next(); + } + isComment = true; + } + } + if (c == '/' && nextPreview() == '/') { + // skip line comment + while (c != '' && c != '\n') { + next(); + } + isComment = true; + } + if (c == '/' && nextPreview() == '*') { + // skip block comment + while (c != '') { + if (c == '*' && nextPreview() == '/') { + // end of block comment found. skip these last two characters + next(); + next(); + break; + } + else { + next(); + } + } + isComment = true; + } + + // skip over whitespaces + while (c == ' ' || c == '\t' || c == '\n' || c == '\r') { // space, tab, enter + next(); + } + } + while (isComment); + + // check for end of dot file + if (c == '') { + // token is still empty + tokenType = TOKENTYPE.DELIMITER; + return; + } + + // check for delimiters consisting of 2 characters + var c2 = c + nextPreview(); + if (DELIMITERS[c2]) { + tokenType = TOKENTYPE.DELIMITER; + token = c2; + next(); + next(); + return; + } + + // check for delimiters consisting of 1 character + if (DELIMITERS[c]) { + tokenType = TOKENTYPE.DELIMITER; + token = c; + next(); + return; + } + + // check for an identifier (number or string) + // TODO: more precise parsing of numbers/strings (and the port separator ':') + if (isAlphaNumeric(c) || c == '-') { + token += c; + next(); + + while (isAlphaNumeric(c)) { + token += c; + next(); + } + if (token == 'false') { + token = false; // convert to boolean + } + else if (token == 'true') { + token = true; // convert to boolean + } + else if (!isNaN(Number(token))) { + token = Number(token); // convert to number + } + tokenType = TOKENTYPE.IDENTIFIER; + return; + } + + // check for a string enclosed by double quotes + if (c == '"') { + next(); + while (c != '' && (c != '"' || (c == '"' && nextPreview() == '"'))) { + token += c; + if (c == '"') { // skip the escape character + next(); + } + next(); + } + if (c != '"') { + throw newSyntaxError('End of string " expected'); + } + next(); + tokenType = TOKENTYPE.IDENTIFIER; + return; + } + + // something unknown is found, wrong characters, a syntax error + tokenType = TOKENTYPE.UNKNOWN; + while (c != '') { + token += c; + next(); + } + throw new SyntaxError('Syntax error in part "' + chop(token, 30) + '"'); + } + + /** + * Parse a graph. + * @returns {Object} graph + */ + function parseGraph() { + var graph = {}; + + first(); + getToken(); + + // optional strict keyword + if (token == 'strict') { + graph.strict = true; + getToken(); + } + + // graph or digraph keyword + if (token == 'graph' || token == 'digraph') { + graph.type = token; + getToken(); + } + + // optional graph id + if (tokenType == TOKENTYPE.IDENTIFIER) { + graph.id = token; + getToken(); + } + + // open angle bracket + if (token != '{') { + throw newSyntaxError('Angle bracket { expected'); + } + getToken(); + + // statements + parseStatements(graph); + + // close angle bracket + if (token != '}') { + throw newSyntaxError('Angle bracket } expected'); + } + getToken(); + + // end of file + if (token !== '') { + throw newSyntaxError('End of file expected'); + } + getToken(); + + // remove temporary default properties + delete graph.node; + delete graph.edge; + delete graph.graph; + + return graph; + } + + /** + * Parse a list with statements. + * @param {Object} graph + */ + function parseStatements (graph) { + while (token !== '' && token != '}') { + parseStatement(graph); + if (token == ';') { + getToken(); + } + } + } + + /** + * Parse a single statement. Can be a an attribute statement, node + * statement, a series of node statements and edge statements, or a + * parameter. + * @param {Object} graph + */ + function parseStatement(graph) { + // parse subgraph + var subgraph = parseSubgraph(graph); + if (subgraph) { + // edge statements + parseEdge(graph, subgraph); + + return; + } + + // parse an attribute statement + var attr = parseAttributeStatement(graph); + if (attr) { + return; + } + + // parse node + if (tokenType != TOKENTYPE.IDENTIFIER) { + throw newSyntaxError('Identifier expected'); + } + var id = token; // id can be a string or a number + getToken(); + + if (token == '=') { + // id statement + getToken(); + if (tokenType != TOKENTYPE.IDENTIFIER) { + throw newSyntaxError('Identifier expected'); + } + graph[id] = token; + getToken(); + // TODO: implement comma separated list with "a_list: ID=ID [','] [a_list] " + } + else { + parseNodeStatement(graph, id); + } + } + + /** + * Parse a subgraph + * @param {Object} graph parent graph object + * @return {Object | null} subgraph + */ + function parseSubgraph (graph) { + var subgraph = null; + + // optional subgraph keyword + if (token == 'subgraph') { + subgraph = {}; + subgraph.type = 'subgraph'; + getToken(); + + // optional graph id + if (tokenType == TOKENTYPE.IDENTIFIER) { + subgraph.id = token; + getToken(); + } + } + + // open angle bracket + if (token == '{') { + getToken(); + + if (!subgraph) { + subgraph = {}; + } + subgraph.parent = graph; + subgraph.node = graph.node; + subgraph.edge = graph.edge; + subgraph.graph = graph.graph; + + // statements + parseStatements(subgraph); + + // close angle bracket + if (token != '}') { + throw newSyntaxError('Angle bracket } expected'); + } + getToken(); + + // remove temporary default properties + delete subgraph.node; + delete subgraph.edge; + delete subgraph.graph; + delete subgraph.parent; + + // register at the parent graph + if (!graph.subgraphs) { + graph.subgraphs = []; + } + graph.subgraphs.push(subgraph); + } + + return subgraph; + } + + /** + * parse an attribute statement like "node [shape=circle fontSize=16]". + * Available keywords are 'node', 'edge', 'graph'. + * The previous list with default attributes will be replaced + * @param {Object} graph + * @returns {String | null} keyword Returns the name of the parsed attribute + * (node, edge, graph), or null if nothing + * is parsed. + */ + function parseAttributeStatement (graph) { + // attribute statements + if (token == 'node') { + getToken(); + + // node attributes + graph.node = parseAttributeList(); + return 'node'; + } + else if (token == 'edge') { + getToken(); + + // edge attributes + graph.edge = parseAttributeList(); + return 'edge'; + } + else if (token == 'graph') { + getToken(); + + // graph attributes + graph.graph = parseAttributeList(); + return 'graph'; + } + + return null; + } + + /** + * parse a node statement + * @param {Object} graph + * @param {String | Number} id + */ + function parseNodeStatement(graph, id) { + // node statement + var node = { + id: id + }; + var attr = parseAttributeList(); + if (attr) { + node.attr = attr; + } + addNode(graph, node); + + // edge statements + parseEdge(graph, id); + } + + /** + * Parse an edge or a series of edges + * @param {Object} graph + * @param {String | Number} from Id of the from node + */ + function parseEdge(graph, from) { + while (token == '->' || token == '--') { + var to; + var type = token; + getToken(); + + var subgraph = parseSubgraph(graph); + if (subgraph) { + to = subgraph; + } + else { + if (tokenType != TOKENTYPE.IDENTIFIER) { + throw newSyntaxError('Identifier or subgraph expected'); + } + to = token; + addNode(graph, { + id: to + }); + getToken(); + } + + // parse edge attributes + var attr = parseAttributeList(); + + // create edge + var edge = createEdge(graph, from, to, type, attr); + addEdge(graph, edge); + + from = to; + } + } + + /** + * Parse a set with attributes, + * for example [label="1.000", shape=solid] + * @return {Object | null} attr + */ + function parseAttributeList() { + var attr = null; + + while (token == '[') { + getToken(); + attr = {}; + while (token !== '' && token != ']') { + if (tokenType != TOKENTYPE.IDENTIFIER) { + throw newSyntaxError('Attribute name expected'); + } + var name = token; + + getToken(); + if (token != '=') { + throw newSyntaxError('Equal sign = expected'); + } + getToken(); + + if (tokenType != TOKENTYPE.IDENTIFIER) { + throw newSyntaxError('Attribute value expected'); + } + var value = token; + setValue(attr, name, value); // name can be a path + + getToken(); + if (token ==',') { + getToken(); + } + } + + if (token != ']') { + throw newSyntaxError('Bracket ] expected'); + } + getToken(); + } + + return attr; + } + + /** + * Create a syntax error with extra information on current token and index. + * @param {String} message + * @returns {SyntaxError} err + */ + function newSyntaxError(message) { + return new SyntaxError(message + ', got "' + chop(token, 30) + '" (char ' + index + ')'); + } + + /** + * Chop off text after a maximum length + * @param {String} text + * @param {Number} maxLength + * @returns {String} + */ + function chop (text, maxLength) { + return (text.length <= maxLength) ? text : (text.substr(0, 27) + '...'); + } + + /** + * Execute a function fn for each pair of elements in two arrays + * @param {Array | *} array1 + * @param {Array | *} array2 + * @param {function} fn + */ + function forEach2(array1, array2, fn) { + if (array1 instanceof Array) { + array1.forEach(function (elem1) { + if (array2 instanceof Array) { + array2.forEach(function (elem2) { + fn(elem1, elem2); + }); + } + else { + fn(elem1, array2); + } + }); + } + else { + if (array2 instanceof Array) { + array2.forEach(function (elem2) { + fn(array1, elem2); + }); + } + else { + fn(array1, array2); + } + } + } + + /** + * Convert a string containing a graph in DOT language into a map containing + * with nodes and edges in the format of graph. + * @param {String} data Text containing a graph in DOT-notation + * @return {Object} graphData + */ + function DOTToGraph (data) { + // parse the DOT file + var dotData = parseDOT(data); + var graphData = { + nodes: [], + edges: [], + options: {} + }; + + // copy the nodes + if (dotData.nodes) { + dotData.nodes.forEach(function (dotNode) { + var graphNode = { + id: dotNode.id, + label: String(dotNode.label || dotNode.id) + }; + merge(graphNode, dotNode.attr); + if (graphNode.image) { + graphNode.shape = 'image'; + } + graphData.nodes.push(graphNode); + }); + } + + // copy the edges + if (dotData.edges) { + /** + * Convert an edge in DOT format to an edge with VisGraph format + * @param {Object} dotEdge + * @returns {Object} graphEdge + */ + function convertEdge(dotEdge) { + var graphEdge = { + from: dotEdge.from, + to: dotEdge.to + }; + merge(graphEdge, dotEdge.attr); + graphEdge.style = (dotEdge.type == '->') ? 'arrow' : 'line'; + return graphEdge; + } + + dotData.edges.forEach(function (dotEdge) { + var from, to; + if (dotEdge.from instanceof Object) { + from = dotEdge.from.nodes; + } + else { + from = { + id: dotEdge.from + } + } + + if (dotEdge.to instanceof Object) { + to = dotEdge.to.nodes; + } + else { + to = { + id: dotEdge.to + } + } + + if (dotEdge.from instanceof Object && dotEdge.from.edges) { + dotEdge.from.edges.forEach(function (subEdge) { + var graphEdge = convertEdge(subEdge); + graphData.edges.push(graphEdge); + }); + } + + forEach2(from, to, function (from, to) { + var subEdge = createEdge(graphData, from.id, to.id, dotEdge.type, dotEdge.attr); + var graphEdge = convertEdge(subEdge); + graphData.edges.push(graphEdge); + }); + + if (dotEdge.to instanceof Object && dotEdge.to.edges) { + dotEdge.to.edges.forEach(function (subEdge) { + var graphEdge = convertEdge(subEdge); + graphData.edges.push(graphEdge); + }); + } + }); + } + + // copy the options + if (dotData.attr) { + graphData.options = dotData.attr; + } + + return graphData; + } + + // exports + exports.parseDOT = parseDOT; + exports.DOTToGraph = DOTToGraph; + +})(typeof util !== 'undefined' ? util : exports); + +/** + * Canvas shapes used by the Graph + */ +if (typeof CanvasRenderingContext2D !== 'undefined') { + + /** + * Draw a circle shape + */ + CanvasRenderingContext2D.prototype.circle = function(x, y, r) { + this.beginPath(); + this.arc(x, y, r, 0, 2*Math.PI, false); + }; + + /** + * Draw a square shape + * @param {Number} x horizontal center + * @param {Number} y vertical center + * @param {Number} r size, width and height of the square + */ + CanvasRenderingContext2D.prototype.square = function(x, y, r) { + this.beginPath(); + this.rect(x - r, y - r, r * 2, r * 2); + }; + + /** + * Draw a triangle shape + * @param {Number} x horizontal center + * @param {Number} y vertical center + * @param {Number} r radius, half the length of the sides of the triangle + */ + CanvasRenderingContext2D.prototype.triangle = function(x, y, r) { + // http://en.wikipedia.org/wiki/Equilateral_triangle + this.beginPath(); + + var s = r * 2; + var s2 = s / 2; + var ir = Math.sqrt(3) / 6 * s; // radius of inner circle + var h = Math.sqrt(s * s - s2 * s2); // height + + this.moveTo(x, y - (h - ir)); + this.lineTo(x + s2, y + ir); + this.lineTo(x - s2, y + ir); + this.lineTo(x, y - (h - ir)); + this.closePath(); + }; + + /** + * Draw a triangle shape in downward orientation + * @param {Number} x horizontal center + * @param {Number} y vertical center + * @param {Number} r radius + */ + CanvasRenderingContext2D.prototype.triangleDown = function(x, y, r) { + // http://en.wikipedia.org/wiki/Equilateral_triangle + this.beginPath(); + + var s = r * 2; + var s2 = s / 2; + var ir = Math.sqrt(3) / 6 * s; // radius of inner circle + var h = Math.sqrt(s * s - s2 * s2); // height + + this.moveTo(x, y + (h - ir)); + this.lineTo(x + s2, y - ir); + this.lineTo(x - s2, y - ir); + this.lineTo(x, y + (h - ir)); + this.closePath(); + }; + + /** + * Draw a star shape, a star with 5 points + * @param {Number} x horizontal center + * @param {Number} y vertical center + * @param {Number} r radius, half the length of the sides of the triangle + */ + CanvasRenderingContext2D.prototype.star = function(x, y, r) { + // http://www.html5canvastutorials.com/labs/html5-canvas-star-spinner/ + this.beginPath(); + + for (var n = 0; n < 10; n++) { + var radius = (n % 2 === 0) ? r * 1.3 : r * 0.5; + this.lineTo( + x + radius * Math.sin(n * 2 * Math.PI / 10), + y - radius * Math.cos(n * 2 * Math.PI / 10) + ); + } + + this.closePath(); + }; + + /** + * http://stackoverflow.com/questions/1255512/how-to-draw-a-rounded-rectangle-on-html-canvas + */ + CanvasRenderingContext2D.prototype.roundRect = function(x, y, w, h, r) { + var r2d = Math.PI/180; + if( w - ( 2 * r ) < 0 ) { r = ( w / 2 ); } //ensure that the radius isn't too large for x + if( h - ( 2 * r ) < 0 ) { r = ( h / 2 ); } //ensure that the radius isn't too large for y + this.beginPath(); + this.moveTo(x+r,y); + this.lineTo(x+w-r,y); + this.arc(x+w-r,y+r,r,r2d*270,r2d*360,false); + this.lineTo(x+w,y+h-r); + this.arc(x+w-r,y+h-r,r,0,r2d*90,false); + this.lineTo(x+r,y+h); + this.arc(x+r,y+h-r,r,r2d*90,r2d*180,false); + this.lineTo(x,y+r); + this.arc(x+r,y+r,r,r2d*180,r2d*270,false); + }; + + /** + * http://stackoverflow.com/questions/2172798/how-to-draw-an-oval-in-html5-canvas + */ + CanvasRenderingContext2D.prototype.ellipse = function(x, y, w, h) { + var kappa = .5522848, + ox = (w / 2) * kappa, // control point offset horizontal + oy = (h / 2) * kappa, // control point offset vertical + xe = x + w, // x-end + ye = y + h, // y-end + xm = x + w / 2, // x-middle + ym = y + h / 2; // y-middle + + this.beginPath(); + this.moveTo(x, ym); + this.bezierCurveTo(x, ym - oy, xm - ox, y, xm, y); + this.bezierCurveTo(xm + ox, y, xe, ym - oy, xe, ym); + this.bezierCurveTo(xe, ym + oy, xm + ox, ye, xm, ye); + this.bezierCurveTo(xm - ox, ye, x, ym + oy, x, ym); + }; + + + + /** + * http://stackoverflow.com/questions/2172798/how-to-draw-an-oval-in-html5-canvas + */ + CanvasRenderingContext2D.prototype.database = function(x, y, w, h) { + var f = 1/3; + var wEllipse = w; + var hEllipse = h * f; + + var kappa = .5522848, + ox = (wEllipse / 2) * kappa, // control point offset horizontal + oy = (hEllipse / 2) * kappa, // control point offset vertical + xe = x + wEllipse, // x-end + ye = y + hEllipse, // y-end + xm = x + wEllipse / 2, // x-middle + ym = y + hEllipse / 2, // y-middle + ymb = y + (h - hEllipse/2), // y-midlle, bottom ellipse + yeb = y + h; // y-end, bottom ellipse + + this.beginPath(); + this.moveTo(xe, ym); + + this.bezierCurveTo(xe, ym + oy, xm + ox, ye, xm, ye); + this.bezierCurveTo(xm - ox, ye, x, ym + oy, x, ym); + + this.bezierCurveTo(x, ym - oy, xm - ox, y, xm, y); + this.bezierCurveTo(xm + ox, y, xe, ym - oy, xe, ym); + + this.lineTo(xe, ymb); + + this.bezierCurveTo(xe, ymb + oy, xm + ox, yeb, xm, yeb); + this.bezierCurveTo(xm - ox, yeb, x, ymb + oy, x, ymb); + + this.lineTo(x, ym); + }; + + + /** + * Draw an arrow point (no line) + */ + CanvasRenderingContext2D.prototype.arrow = function(x, y, angle, length) { + // tail + var xt = x - length * Math.cos(angle); + var yt = y - length * Math.sin(angle); + + // inner tail + // TODO: allow to customize different shapes + var xi = x - length * 0.9 * Math.cos(angle); + var yi = y - length * 0.9 * Math.sin(angle); + + // left + var xl = xt + length / 3 * Math.cos(angle + 0.5 * Math.PI); + var yl = yt + length / 3 * Math.sin(angle + 0.5 * Math.PI); + + // right + var xr = xt + length / 3 * Math.cos(angle - 0.5 * Math.PI); + var yr = yt + length / 3 * Math.sin(angle - 0.5 * Math.PI); + + this.beginPath(); + this.moveTo(x, y); + this.lineTo(xl, yl); + this.lineTo(xi, yi); + this.lineTo(xr, yr); + this.closePath(); + }; + + /** + * Sets up the dashedLine functionality for drawing + * Original code came from http://stackoverflow.com/questions/4576724/dotted-stroke-in-canvas + * @author David Jordan + * @date 2012-08-08 + */ + CanvasRenderingContext2D.prototype.dashedLine = function(x,y,x2,y2,dashArray){ + if (!dashArray) dashArray=[10,5]; + if (dashLength==0) dashLength = 0.001; // Hack for Safari + var dashCount = dashArray.length; + this.moveTo(x, y); + var dx = (x2-x), dy = (y2-y); + var slope = dy/dx; + var distRemaining = Math.sqrt( dx*dx + dy*dy ); + var dashIndex=0, draw=true; + while (distRemaining>=0.1){ + var dashLength = dashArray[dashIndex++%dashCount]; + if (dashLength > distRemaining) dashLength = distRemaining; + var xStep = Math.sqrt( dashLength*dashLength / (1 + slope*slope) ); + if (dx<0) xStep = -xStep; + x += xStep; + y += slope*xStep; + this[draw ? 'lineTo' : 'moveTo'](x,y); + distRemaining -= dashLength; + draw = !draw; + } + }; + + // TODO: add diamond shape +} + +/** + * @class Node + * A node. A node can be connected to other nodes via one or multiple edges. + * @param {object} properties An object containing properties for the node. All + * properties are optional, except for the id. + * {number} id Id of the node. Required + * {string} label Text label for the node + * {number} x Horizontal position of the node + * {number} y Vertical position of the node + * {string} shape Node shape, available: + * "database", "circle", "ellipse", + * "box", "image", "text", "dot", + * "star", "triangle", "triangleDown", + * "square" + * {string} image An image url + * {string} title An title text, can be HTML + * {anytype} group A group name or number + * @param {Graph.Images} imagelist A list with images. Only needed + * when the node has an image + * @param {Graph.Groups} grouplist A list with groups. Needed for + * retrieving group properties + * @param {Object} constants An object with default values for + * example for the color + * + */ +function Node(properties, imagelist, grouplist, constants) { + this.selected = false; + + this.edges = []; // all edges connected to this node + this.dynamicEdges = []; + this.reroutedEdges = {}; + this.group = constants.nodes.group; + + this.fontSize = constants.nodes.fontSize; + this.fontFace = constants.nodes.fontFace; + this.fontColor = constants.nodes.fontColor; + this.fontDrawThreshold = 3; + + this.color = constants.nodes.color; + + // set defaults for the properties + this.id = undefined; + this.shape = constants.nodes.shape; + this.image = constants.nodes.image; + this.x = 0; + this.y = 0; + this.xFixed = false; + this.yFixed = false; + this.horizontalAlignLeft = true; // these are for the navigation controls + this.verticalAlignTop = true; // these are for the navigation controls + this.radius = constants.nodes.radius; + this.baseRadiusValue = constants.nodes.radius; + this.radiusFixed = false; + this.radiusMin = constants.nodes.radiusMin; + this.radiusMax = constants.nodes.radiusMax; + this.level = -1; + + this.imagelist = imagelist; + this.grouplist = grouplist; + + // physics properties + this.fx = 0.0; // external force x + this.fy = 0.0; // external force y + this.vx = 0.0; // velocity x + this.vy = 0.0; // velocity y + this.minForce = constants.minForce; + this.damping = constants.physics.damping; + this.mass = 1; // kg + + this.setProperties(properties, constants); + + // creating the variables for clustering + this.resetCluster(); + this.dynamicEdgesLength = 0; + this.clusterSession = 0; + this.clusterSizeWidthFactor = constants.clustering.nodeScaling.width; + this.clusterSizeHeightFactor = constants.clustering.nodeScaling.height; + this.clusterSizeRadiusFactor = constants.clustering.nodeScaling.radius; + this.maxNodeSizeIncrements = constants.clustering.maxNodeSizeIncrements; + this.growthIndicator = 0; + + // variables to tell the node about the graph. + this.graphScaleInv = 1; + this.graphScale = 1; + this.canvasTopLeft = {"x": -300, "y": -300}; + this.canvasBottomRight = {"x": 300, "y": 300}; + this.parentEdgeId = null; +} + +/** + * (re)setting the clustering variables and objects + */ +Node.prototype.resetCluster = function() { + // clustering variables + this.formationScale = undefined; // this is used to determine when to open the cluster + this.clusterSize = 1; // this signifies the total amount of nodes in this cluster + this.containedNodes = {}; + this.containedEdges = {}; + this.clusterSessions = []; +}; + +/** + * Attach a edge to the node + * @param {Edge} edge + */ +Node.prototype.attachEdge = function(edge) { + if (this.edges.indexOf(edge) == -1) { + this.edges.push(edge); + } + if (this.dynamicEdges.indexOf(edge) == -1) { + this.dynamicEdges.push(edge); + } + this.dynamicEdgesLength = this.dynamicEdges.length; +}; + +/** + * Detach a edge from the node + * @param {Edge} edge + */ +Node.prototype.detachEdge = function(edge) { + var index = this.edges.indexOf(edge); + if (index != -1) { + this.edges.splice(index, 1); + this.dynamicEdges.splice(index, 1); + } + this.dynamicEdgesLength = this.dynamicEdges.length; +}; + + +/** + * Set or overwrite properties for the node + * @param {Object} properties an object with properties + * @param {Object} constants and object with default, global properties + */ +Node.prototype.setProperties = function(properties, constants) { + if (!properties) { + return; + } + this.originalLabel = undefined; + // basic properties + if (properties.id !== undefined) {this.id = properties.id;} + if (properties.label !== undefined) {this.label = properties.label; this.originalLabel = properties.label;} + if (properties.title !== undefined) {this.title = properties.title;} + if (properties.group !== undefined) {this.group = properties.group;} + if (properties.x !== undefined) {this.x = properties.x;} + if (properties.y !== undefined) {this.y = properties.y;} + if (properties.value !== undefined) {this.value = properties.value;} + if (properties.level !== undefined) {this.level = properties.level;} + + + // physics + if (properties.internalMultiplier !== undefined) {this.internalMultiplier = properties.internalMultiplier;} + if (properties.damping !== undefined) {this.dampingBase = properties.damping;} + if (properties.mass !== undefined) {this.mass = properties.mass;} + + // navigation controls properties + if (properties.horizontalAlignLeft !== undefined) {this.horizontalAlignLeft = properties.horizontalAlignLeft;} + if (properties.verticalAlignTop !== undefined) {this.verticalAlignTop = properties.verticalAlignTop;} + if (properties.triggerFunction !== undefined) {this.triggerFunction = properties.triggerFunction;} + + if (this.id === undefined) { + throw "Node must have an id"; + } + + // copy group properties + if (this.group) { + var groupObj = this.grouplist.get(this.group); + for (var prop in groupObj) { + if (groupObj.hasOwnProperty(prop)) { + this[prop] = groupObj[prop]; + } + } + } + + // individual shape properties + if (properties.shape !== undefined) {this.shape = properties.shape;} + if (properties.image !== undefined) {this.image = properties.image;} + if (properties.radius !== undefined) {this.radius = properties.radius;} + if (properties.color !== undefined) {this.color = Node.parseColor(properties.color);} + + if (properties.fontColor !== undefined) {this.fontColor = properties.fontColor;} + if (properties.fontSize !== undefined) {this.fontSize = properties.fontSize;} + if (properties.fontFace !== undefined) {this.fontFace = properties.fontFace;} + + if (this.image !== undefined) { + if (this.imagelist) { + this.imageObj = this.imagelist.load(this.image); + } + else { + throw "No imagelist provided"; + } + } + + this.xFixed = this.xFixed || (properties.x !== undefined && !properties.allowedToMove); + this.yFixed = this.yFixed || (properties.y !== undefined && !properties.allowedToMove); + this.radiusFixed = this.radiusFixed || (properties.radius !== undefined); + + if (this.shape == 'image') { + this.radiusMin = constants.nodes.widthMin; + this.radiusMax = constants.nodes.widthMax; + } + + // choose draw method depending on the shape + switch (this.shape) { + case 'database': this.draw = this._drawDatabase; this.resize = this._resizeDatabase; break; + case 'box': this.draw = this._drawBox; this.resize = this._resizeBox; break; + case 'circle': this.draw = this._drawCircle; this.resize = this._resizeCircle; break; + case 'ellipse': this.draw = this._drawEllipse; this.resize = this._resizeEllipse; break; + // TODO: add diamond shape + case 'image': this.draw = this._drawImage; this.resize = this._resizeImage; break; + case 'text': this.draw = this._drawText; this.resize = this._resizeText; break; + case 'dot': this.draw = this._drawDot; this.resize = this._resizeShape; break; + case 'square': this.draw = this._drawSquare; this.resize = this._resizeShape; break; + case 'triangle': this.draw = this._drawTriangle; this.resize = this._resizeShape; break; + case 'triangleDown': this.draw = this._drawTriangleDown; this.resize = this._resizeShape; break; + case 'star': this.draw = this._drawStar; this.resize = this._resizeShape; break; + default: this.draw = this._drawEllipse; this.resize = this._resizeEllipse; break; + } + // reset the size of the node, this can be changed + this._reset(); +}; + +/** + * Parse a color property into an object with border, background, and + * hightlight colors + * @param {Object | String} color + * @return {Object} colorObject + */ +Node.parseColor = function(color) { + var c; + if (util.isString(color)) { + if (util.isValidHex(color)) { + var hsv = util.hexToHSV(color); + var lighterColorHSV = {h:hsv.h,s:hsv.s * 0.45,v:Math.min(1,hsv.v * 1.05)}; + var darkerColorHSV = {h:hsv.h,s:Math.min(1,hsv.v * 1.25),v:hsv.v*0.6}; + var darkerColorHex = util.HSVToHex(darkerColorHSV.h ,darkerColorHSV.h ,darkerColorHSV.v); + var lighterColorHex = util.HSVToHex(lighterColorHSV.h,lighterColorHSV.s,lighterColorHSV.v); + + c = { + background: color, + border:darkerColorHex, + highlight: { + background:lighterColorHex, + border:darkerColorHex + } + }; + } + else { + c = { + background:color, + border:color, + highlight: { + background:color, + border:color + } + }; + } + } + else { + c = {}; + c.background = color.background || 'white'; + c.border = color.border || c.background; + + if (util.isString(color.highlight)) { + c.highlight = { + border: color.highlight, + background: color.highlight + } + } + else { + c.highlight = {}; + c.highlight.background = color.highlight && color.highlight.background || c.background; + c.highlight.border = color.highlight && color.highlight.border || c.border; + } + } + + return c; +}; + +/** + * select this node + */ +Node.prototype.select = function() { + this.selected = true; + this._reset(); +}; + +/** + * unselect this node + */ +Node.prototype.unselect = function() { + this.selected = false; + this._reset(); +}; + + +/** + * Reset the calculated size of the node, forces it to recalculate its size + */ +Node.prototype.clearSizeCache = function() { + this._reset(); +}; + +/** + * Reset the calculated size of the node, forces it to recalculate its size + * @private + */ +Node.prototype._reset = function() { + this.width = undefined; + this.height = undefined; +}; + +/** + * get the title of this node. + * @return {string} title The title of the node, or undefined when no title + * has been set. + */ +Node.prototype.getTitle = function() { + return this.title; +}; + +/** + * Calculate the distance to the border of the Node + * @param {CanvasRenderingContext2D} ctx + * @param {Number} angle Angle in radians + * @returns {number} distance Distance to the border in pixels + */ +Node.prototype.distanceToBorder = function (ctx, angle) { + var borderWidth = 1; + + if (!this.width) { + this.resize(ctx); + } + + switch (this.shape) { + case 'circle': + case 'dot': + return this.radius + borderWidth; + + case 'ellipse': + var a = this.width / 2; + var b = this.height / 2; + var w = (Math.sin(angle) * a); + var h = (Math.cos(angle) * b); + return a * b / Math.sqrt(w * w + h * h); + + // TODO: implement distanceToBorder for database + // TODO: implement distanceToBorder for triangle + // TODO: implement distanceToBorder for triangleDown + + case 'box': + case 'image': + case 'text': + default: + if (this.width) { + return Math.min( + Math.abs(this.width / 2 / Math.cos(angle)), + Math.abs(this.height / 2 / Math.sin(angle))) + borderWidth; + // TODO: reckon with border radius too in case of box + } + else { + return 0; + } + + } + // TODO: implement calculation of distance to border for all shapes +}; + +/** + * Set forces acting on the node + * @param {number} fx Force in horizontal direction + * @param {number} fy Force in vertical direction + */ +Node.prototype._setForce = function(fx, fy) { + this.fx = fx; + this.fy = fy; +}; + +/** + * Add forces acting on the node + * @param {number} fx Force in horizontal direction + * @param {number} fy Force in vertical direction + * @private + */ +Node.prototype._addForce = function(fx, fy) { + this.fx += fx; + this.fy += fy; +}; + +/** + * Perform one discrete step for the node + * @param {number} interval Time interval in seconds + */ +Node.prototype.discreteStep = function(interval) { + if (!this.xFixed) { + var dx = this.damping * this.vx; // damping force + var ax = (this.fx - dx) / this.mass; // acceleration + this.vx += ax * interval; // velocity + this.x += this.vx * interval; // position + } + + if (!this.yFixed) { + var dy = this.damping * this.vy; // damping force + var ay = (this.fy - dy) / this.mass; // acceleration + this.vy += ay * interval; // velocity + this.y += this.vy * interval; // position + } +}; + + + +/** + * Perform one discrete step for the node + * @param {number} interval Time interval in seconds + */ +Node.prototype.discreteStepLimited = function(interval, maxVelocity) { + if (!this.xFixed) { + var dx = this.damping * this.vx; // damping force + var ax = (this.fx - dx) / this.mass; // acceleration + this.vx += ax * interval; // velocity + this.vx = (Math.abs(this.vx) > maxVelocity) ? ((this.vx > 0) ? maxVelocity : -maxVelocity) : this.vx; + this.x += this.vx * interval; // position + } + + if (!this.yFixed) { + var dy = this.damping * this.vy; // damping force + var ay = (this.fy - dy) / this.mass; // acceleration + this.vy += ay * interval; // velocity + this.vy = (Math.abs(this.vy) > maxVelocity) ? ((this.vy > 0) ? maxVelocity : -maxVelocity) : this.vy; + this.y += this.vy * interval; // position + } +}; + +/** + * Check if this node has a fixed x and y position + * @return {boolean} true if fixed, false if not + */ +Node.prototype.isFixed = function() { + return (this.xFixed && this.yFixed); +}; + +/** + * Check if this node is moving + * @param {number} vmin the minimum velocity considered as "moving" + * @return {boolean} true if moving, false if it has no velocity + */ +// TODO: replace this method with calculating the kinetic energy +Node.prototype.isMoving = function(vmin) { + return (Math.abs(this.vx) > vmin || Math.abs(this.vy) > vmin); +}; + +/** + * check if this node is selecte + * @return {boolean} selected True if node is selected, else false + */ +Node.prototype.isSelected = function() { + return this.selected; +}; + +/** + * Retrieve the value of the node. Can be undefined + * @return {Number} value + */ +Node.prototype.getValue = function() { + return this.value; +}; + +/** + * Calculate the distance from the nodes location to the given location (x,y) + * @param {Number} x + * @param {Number} y + * @return {Number} value + */ +Node.prototype.getDistance = function(x, y) { + var dx = this.x - x, + dy = this.y - y; + return Math.sqrt(dx * dx + dy * dy); +}; + + +/** + * Adjust the value range of the node. The node will adjust it's radius + * based on its value. + * @param {Number} min + * @param {Number} max + */ +Node.prototype.setValueRange = function(min, max) { + if (!this.radiusFixed && this.value !== undefined) { + if (max == min) { + this.radius = (this.radiusMin + this.radiusMax) / 2; + } + else { + var scale = (this.radiusMax - this.radiusMin) / (max - min); + this.radius = (this.value - min) * scale + this.radiusMin; + } + } + this.baseRadiusValue = this.radius; +}; + +/** + * Draw this node in the given canvas + * The 2d context of a HTML canvas can be retrieved by canvas.getContext("2d"); + * @param {CanvasRenderingContext2D} ctx + */ +Node.prototype.draw = function(ctx) { + throw "Draw method not initialized for node"; +}; + +/** + * Recalculate the size of this node in the given canvas + * The 2d context of a HTML canvas can be retrieved by canvas.getContext("2d"); + * @param {CanvasRenderingContext2D} ctx + */ +Node.prototype.resize = function(ctx) { + throw "Resize method not initialized for node"; +}; + +/** + * Check if this object is overlapping with the provided object + * @param {Object} obj an object with parameters left, top, right, bottom + * @return {boolean} True if location is located on node + */ +Node.prototype.isOverlappingWith = function(obj) { + return (this.left < obj.right && + this.left + this.width > obj.left && + this.top < obj.bottom && + this.top + this.height > obj.top); +}; + +Node.prototype._resizeImage = function (ctx) { + // TODO: pre calculate the image size + + if (!this.width || !this.height) { // undefined or 0 + var width, height; + if (this.value) { + this.radius = this.baseRadiusValue; + var scale = this.imageObj.height / this.imageObj.width; + if (scale !== undefined) { + width = this.radius || this.imageObj.width; + height = this.radius * scale || this.imageObj.height; + } + else { + width = 0; + height = 0; + } + } + else { + width = this.imageObj.width; + height = this.imageObj.height; + } + this.width = width; + this.height = height; + + this.growthIndicator = 0; + if (this.width > 0 && this.height > 0) { + this.width += Math.min(this.clusterSize - 1, this.maxNodeSizeIncrements) * this.clusterSizeWidthFactor; + this.height += Math.min(this.clusterSize - 1, this.maxNodeSizeIncrements) * this.clusterSizeHeightFactor; + this.radius += Math.min(this.clusterSize - 1, this.maxNodeSizeIncrements) * this.clusterSizeRadiusFactor; + this.growthIndicator = this.width - width; + } + } + +}; + +Node.prototype._drawImage = function (ctx) { + this._resizeImage(ctx); + + this.left = this.x - this.width / 2; + this.top = this.y - this.height / 2; + + var yLabel; + if (this.imageObj.width != 0 ) { + // draw the shade + if (this.clusterSize > 1) { + var lineWidth = ((this.clusterSize > 1) ? 10 : 0.0); + lineWidth *= this.graphScaleInv; + lineWidth = Math.min(0.2 * this.width,lineWidth); + + ctx.globalAlpha = 0.5; + ctx.drawImage(this.imageObj, this.left - lineWidth, this.top - lineWidth, this.width + 2*lineWidth, this.height + 2*lineWidth); + } + + // draw the image + ctx.globalAlpha = 1.0; + ctx.drawImage(this.imageObj, this.left, this.top, this.width, this.height); + yLabel = this.y + this.height / 2; + } + else { + // image still loading... just draw the label for now + yLabel = this.y; + } + + this._label(ctx, this.label, this.x, yLabel, undefined, "top"); +}; + + +Node.prototype._resizeBox = function (ctx) { + if (!this.width) { + var margin = 5; + var textSize = this.getTextSize(ctx); + this.width = textSize.width + 2 * margin; + this.height = textSize.height + 2 * margin; + + this.width += Math.min(this.clusterSize - 1, this.maxNodeSizeIncrements) * 0.5 * this.clusterSizeWidthFactor; + this.height += Math.min(this.clusterSize - 1, this.maxNodeSizeIncrements) * 0.5 * this.clusterSizeHeightFactor; + this.growthIndicator = this.width - (textSize.width + 2 * margin); +// this.radius += Math.min(this.clusterSize - 1, this.maxNodeSizeIncrements) * 0.5 * this.clusterSizeRadiusFactor; + + } +}; + +Node.prototype._drawBox = function (ctx) { + this._resizeBox(ctx); + + this.left = this.x - this.width / 2; + this.top = this.y - this.height / 2; + + var clusterLineWidth = 2.5; + var selectionLineWidth = 2; + + ctx.strokeStyle = this.selected ? this.color.highlight.border : this.color.border; + + // draw the outer border + if (this.clusterSize > 1) { + ctx.lineWidth = (this.selected ? selectionLineWidth : 1.0) + ((this.clusterSize > 1) ? clusterLineWidth : 0.0); + ctx.lineWidth *= this.graphScaleInv; + ctx.lineWidth = Math.min(0.1 * this.width,ctx.lineWidth); + + ctx.roundRect(this.left-2*ctx.lineWidth, this.top-2*ctx.lineWidth, this.width+4*ctx.lineWidth, this.height+4*ctx.lineWidth, this.radius); + ctx.stroke(); + } + ctx.lineWidth = (this.selected ? selectionLineWidth : 1.0) + ((this.clusterSize > 1) ? clusterLineWidth : 0.0); + ctx.lineWidth *= this.graphScaleInv; + ctx.lineWidth = Math.min(0.1 * this.width,ctx.lineWidth); + + ctx.fillStyle = this.selected ? this.color.highlight.background : this.color.background; + + ctx.roundRect(this.left, this.top, this.width, this.height, this.radius); + ctx.fill(); + ctx.stroke(); + + this._label(ctx, this.label, this.x, this.y); +}; + + +Node.prototype._resizeDatabase = function (ctx) { + if (!this.width) { + var margin = 5; + var textSize = this.getTextSize(ctx); + var size = textSize.width + 2 * margin; + this.width = size; + this.height = size; + + // scaling used for clustering + this.width += Math.min(this.clusterSize - 1, this.maxNodeSizeIncrements) * this.clusterSizeWidthFactor; + this.height += Math.min(this.clusterSize - 1, this.maxNodeSizeIncrements) * this.clusterSizeHeightFactor; + this.radius += Math.min(this.clusterSize - 1, this.maxNodeSizeIncrements) * this.clusterSizeRadiusFactor; + this.growthIndicator = this.width - size; + } +}; + +Node.prototype._drawDatabase = function (ctx) { + this._resizeDatabase(ctx); + this.left = this.x - this.width / 2; + this.top = this.y - this.height / 2; + + var clusterLineWidth = 2.5; + var selectionLineWidth = 2; + + ctx.strokeStyle = this.selected ? this.color.highlight.border : this.color.border; + + // draw the outer border + if (this.clusterSize > 1) { + ctx.lineWidth = (this.selected ? selectionLineWidth : 1.0) + ((this.clusterSize > 1) ? clusterLineWidth : 0.0); + ctx.lineWidth *= this.graphScaleInv; + ctx.lineWidth = Math.min(0.1 * this.width,ctx.lineWidth); + + ctx.database(this.x - this.width/2 - 2*ctx.lineWidth, this.y - this.height*0.5 - 2*ctx.lineWidth, this.width + 4*ctx.lineWidth, this.height + 4*ctx.lineWidth); + ctx.stroke(); + } + ctx.lineWidth = (this.selected ? selectionLineWidth : 1.0) + ((this.clusterSize > 1) ? clusterLineWidth : 0.0); + ctx.lineWidth *= this.graphScaleInv; + ctx.lineWidth = Math.min(0.1 * this.width,ctx.lineWidth); + + ctx.fillStyle = this.selected ? this.color.highlight.background : this.color.background; + ctx.database(this.x - this.width/2, this.y - this.height*0.5, this.width, this.height); + ctx.fill(); + ctx.stroke(); + + this._label(ctx, this.label, this.x, this.y); +}; + + +Node.prototype._resizeCircle = function (ctx) { + if (!this.width) { + var margin = 5; + var textSize = this.getTextSize(ctx); + var diameter = Math.max(textSize.width, textSize.height) + 2 * margin; + this.radius = diameter / 2; + + this.width = diameter; + this.height = diameter; + + // scaling used for clustering +// this.width += Math.min(this.clusterSize - 1, this.maxNodeSizeIncrements) * 0.5 * this.clusterSizeWidthFactor; +// this.height += Math.min(this.clusterSize - 1, this.maxNodeSizeIncrements) * 0.5 * this.clusterSizeHeightFactor; + this.radius += Math.min(this.clusterSize - 1, this.maxNodeSizeIncrements) * 0.5 * this.clusterSizeRadiusFactor; + this.growthIndicator = this.radius - 0.5*diameter; + } +}; + +Node.prototype._drawCircle = function (ctx) { + this._resizeCircle(ctx); + this.left = this.x - this.width / 2; + this.top = this.y - this.height / 2; + + var clusterLineWidth = 2.5; + var selectionLineWidth = 2; + + ctx.strokeStyle = this.selected ? this.color.highlight.border : this.color.border; + + // draw the outer border + if (this.clusterSize > 1) { + ctx.lineWidth = (this.selected ? selectionLineWidth : 1.0) + ((this.clusterSize > 1) ? clusterLineWidth : 0.0); + ctx.lineWidth *= this.graphScaleInv; + ctx.lineWidth = Math.min(0.1 * this.width,ctx.lineWidth); + + ctx.circle(this.x, this.y, this.radius+2*ctx.lineWidth); + ctx.stroke(); + } + ctx.lineWidth = (this.selected ? selectionLineWidth : 1.0) + ((this.clusterSize > 1) ? clusterLineWidth : 0.0); + ctx.lineWidth *= this.graphScaleInv; + ctx.lineWidth = Math.min(0.1 * this.width,ctx.lineWidth); + + ctx.fillStyle = this.selected ? this.color.highlight.background : this.color.background; + ctx.circle(this.x, this.y, this.radius); + ctx.fill(); + ctx.stroke(); + + this._label(ctx, this.label, this.x, this.y); +}; + +Node.prototype._resizeEllipse = function (ctx) { + if (!this.width) { + var textSize = this.getTextSize(ctx); + + this.width = textSize.width * 1.5; + this.height = textSize.height * 2; + if (this.width < this.height) { + this.width = this.height; + } + var defaultSize = this.width; + + // scaling used for clustering + this.width += Math.min(this.clusterSize - 1, this.maxNodeSizeIncrements) * this.clusterSizeWidthFactor; + this.height += Math.min(this.clusterSize - 1, this.maxNodeSizeIncrements) * this.clusterSizeHeightFactor; + this.radius += Math.min(this.clusterSize - 1, this.maxNodeSizeIncrements) * this.clusterSizeRadiusFactor; + this.growthIndicator = this.width - defaultSize; + } +}; + +Node.prototype._drawEllipse = function (ctx) { + this._resizeEllipse(ctx); + this.left = this.x - this.width / 2; + this.top = this.y - this.height / 2; + + var clusterLineWidth = 2.5; + var selectionLineWidth = 2; + + ctx.strokeStyle = this.selected ? this.color.highlight.border : this.color.border; + + // draw the outer border + if (this.clusterSize > 1) { + ctx.lineWidth = (this.selected ? selectionLineWidth : 1.0) + ((this.clusterSize > 1) ? clusterLineWidth : 0.0); + ctx.lineWidth *= this.graphScaleInv; + ctx.lineWidth = Math.min(0.1 * this.width,ctx.lineWidth); + + ctx.ellipse(this.left-2*ctx.lineWidth, this.top-2*ctx.lineWidth, this.width+4*ctx.lineWidth, this.height+4*ctx.lineWidth); + ctx.stroke(); + } + ctx.lineWidth = (this.selected ? selectionLineWidth : 1.0) + ((this.clusterSize > 1) ? clusterLineWidth : 0.0); + ctx.lineWidth *= this.graphScaleInv; + ctx.lineWidth = Math.min(0.1 * this.width,ctx.lineWidth); + + ctx.fillStyle = this.selected ? this.color.highlight.background : this.color.background; + + ctx.ellipse(this.left, this.top, this.width, this.height); + ctx.fill(); + ctx.stroke(); + this._label(ctx, this.label, this.x, this.y); +}; + +Node.prototype._drawDot = function (ctx) { + this._drawShape(ctx, 'circle'); +}; + +Node.prototype._drawTriangle = function (ctx) { + this._drawShape(ctx, 'triangle'); +}; + +Node.prototype._drawTriangleDown = function (ctx) { + this._drawShape(ctx, 'triangleDown'); +}; + +Node.prototype._drawSquare = function (ctx) { + this._drawShape(ctx, 'square'); +}; + +Node.prototype._drawStar = function (ctx) { + this._drawShape(ctx, 'star'); +}; + +Node.prototype._resizeShape = function (ctx) { + if (!this.width) { + this.radius = this.baseRadiusValue; + var size = 2 * this.radius; + this.width = size; + this.height = size; + + // scaling used for clustering + this.width += Math.min(this.clusterSize - 1, this.maxNodeSizeIncrements) * this.clusterSizeWidthFactor; + this.height += Math.min(this.clusterSize - 1, this.maxNodeSizeIncrements) * this.clusterSizeHeightFactor; + this.radius += Math.min(this.clusterSize - 1, this.maxNodeSizeIncrements) * 0.5 * this.clusterSizeRadiusFactor; + this.growthIndicator = this.width - size; + } +}; + +Node.prototype._drawShape = function (ctx, shape) { + this._resizeShape(ctx); + + this.left = this.x - this.width / 2; + this.top = this.y - this.height / 2; + + var clusterLineWidth = 2.5; + var selectionLineWidth = 2; + var radiusMultiplier = 2; + + // choose draw method depending on the shape + switch (shape) { + case 'dot': radiusMultiplier = 2; break; + case 'square': radiusMultiplier = 2; break; + case 'triangle': radiusMultiplier = 3; break; + case 'triangleDown': radiusMultiplier = 3; break; + case 'star': radiusMultiplier = 4; break; + } + + ctx.strokeStyle = this.selected ? this.color.highlight.border : this.color.border; + + // draw the outer border + if (this.clusterSize > 1) { + ctx.lineWidth = (this.selected ? selectionLineWidth : 1.0) + ((this.clusterSize > 1) ? clusterLineWidth : 0.0); + ctx.lineWidth *= this.graphScaleInv; + ctx.lineWidth = Math.min(0.1 * this.width,ctx.lineWidth); + + ctx[shape](this.x, this.y, this.radius + radiusMultiplier * ctx.lineWidth); + ctx.stroke(); + } + ctx.lineWidth = (this.selected ? selectionLineWidth : 1.0) + ((this.clusterSize > 1) ? clusterLineWidth : 0.0); + ctx.lineWidth *= this.graphScaleInv; + ctx.lineWidth = Math.min(0.1 * this.width,ctx.lineWidth); + + ctx.fillStyle = this.selected ? this.color.highlight.background : this.color.background; + + ctx[shape](this.x, this.y, this.radius); + ctx.fill(); + ctx.stroke(); + + if (this.label) { + this._label(ctx, this.label, this.x, this.y + this.height / 2, undefined, 'top'); + } +}; + +Node.prototype._resizeText = function (ctx) { + if (!this.width) { + var margin = 5; + var textSize = this.getTextSize(ctx); + this.width = textSize.width + 2 * margin; + this.height = textSize.height + 2 * margin; + + // scaling used for clustering + this.width += Math.min(this.clusterSize - 1, this.maxNodeSizeIncrements) * this.clusterSizeWidthFactor; + this.height += Math.min(this.clusterSize - 1, this.maxNodeSizeIncrements) * this.clusterSizeHeightFactor; + this.radius += Math.min(this.clusterSize - 1, this.maxNodeSizeIncrements) * this.clusterSizeRadiusFactor; + this.growthIndicator = this.width - (textSize.width + 2 * margin); + } +}; + +Node.prototype._drawText = function (ctx) { + this._resizeText(ctx); + this.left = this.x - this.width / 2; + this.top = this.y - this.height / 2; + + this._label(ctx, this.label, this.x, this.y); +}; + + +Node.prototype._label = function (ctx, text, x, y, align, baseline) { + if (text && this.fontSize * this.graphScale > this.fontDrawThreshold) { + ctx.font = (this.selected ? "bold " : "") + this.fontSize + "px " + this.fontFace; + ctx.fillStyle = this.fontColor || "black"; + ctx.textAlign = align || "center"; + ctx.textBaseline = baseline || "middle"; + + var lines = text.split('\n'), + lineCount = lines.length, + fontSize = (this.fontSize + 4), + yLine = y + (1 - lineCount) / 2 * fontSize; + + for (var i = 0; i < lineCount; i++) { + ctx.fillText(lines[i], x, yLine); + yLine += fontSize; + } + } +}; + + +Node.prototype.getTextSize = function(ctx) { + if (this.label !== undefined) { + ctx.font = (this.selected ? "bold " : "") + this.fontSize + "px " + this.fontFace; + + var lines = this.label.split('\n'), + height = (this.fontSize + 4) * lines.length, + width = 0; + + for (var i = 0, iMax = lines.length; i < iMax; i++) { + width = Math.max(width, ctx.measureText(lines[i]).width); + } + + return {"width": width, "height": height}; + } + else { + return {"width": 0, "height": 0}; + } +}; + +/** + * this is used to determine if a node is visible at all. this is used to determine when it needs to be drawn. + * there is a safety margin of 0.3 * width; + * + * @returns {boolean} + */ +Node.prototype.inArea = function() { + if (this.width !== undefined) { + return (this.x + this.width*this.graphScaleInv >= this.canvasTopLeft.x && + this.x - this.width*this.graphScaleInv < this.canvasBottomRight.x && + this.y + this.height*this.graphScaleInv >= this.canvasTopLeft.y && + this.y - this.height*this.graphScaleInv < this.canvasBottomRight.y); + } + else { + return true; + } +}; + +/** + * checks if the core of the node is in the display area, this is used for opening clusters around zoom + * @returns {boolean} + */ +Node.prototype.inView = function() { + return (this.x >= this.canvasTopLeft.x && + this.x < this.canvasBottomRight.x && + this.y >= this.canvasTopLeft.y && + this.y < this.canvasBottomRight.y); +}; + +/** + * This allows the zoom level of the graph to influence the rendering + * We store the inverted scale and the coordinates of the top left, and bottom right points of the canvas + * + * @param scale + * @param canvasTopLeft + * @param canvasBottomRight + */ +Node.prototype.setScaleAndPos = function(scale,canvasTopLeft,canvasBottomRight) { + this.graphScaleInv = 1.0/scale; + this.graphScale = scale; + this.canvasTopLeft = canvasTopLeft; + this.canvasBottomRight = canvasBottomRight; +}; + + +/** + * This allows the zoom level of the graph to influence the rendering + * + * @param scale + */ +Node.prototype.setScale = function(scale) { + this.graphScaleInv = 1.0/scale; + this.graphScale = scale; +}; + + + +/** + * set the velocity at 0. Is called when this node is contained in another during clustering + */ +Node.prototype.clearVelocity = function() { + this.vx = 0; + this.vy = 0; +}; + + +/** + * Basic preservation of (kinectic) energy + * + * @param massBeforeClustering + */ +Node.prototype.updateVelocity = function(massBeforeClustering) { + var energyBefore = this.vx * this.vx * massBeforeClustering; + //this.vx = (this.vx < 0) ? -Math.sqrt(energyBefore/this.mass) : Math.sqrt(energyBefore/this.mass); + this.vx = Math.sqrt(energyBefore/this.mass); + energyBefore = this.vy * this.vy * massBeforeClustering; + //this.vy = (this.vy < 0) ? -Math.sqrt(energyBefore/this.mass) : Math.sqrt(energyBefore/this.mass); + this.vy = Math.sqrt(energyBefore/this.mass); +}; + + +/** + * @class Edge + * + * A edge connects two nodes + * @param {Object} properties Object with properties. Must contain + * At least properties from and to. + * Available properties: from (number), + * to (number), label (string, color (string), + * width (number), style (string), + * length (number), title (string) + * @param {Graph} graph A graph object, used to find and edge to + * nodes. + * @param {Object} constants An object with default values for + * example for the color + */ +function Edge (properties, graph, constants) { + if (!graph) { + throw "No graph provided"; + } + this.graph = graph; + + // initialize constants + this.widthMin = constants.edges.widthMin; + this.widthMax = constants.edges.widthMax; + + // initialize variables + this.id = undefined; + this.fromId = undefined; + this.toId = undefined; + this.style = constants.edges.style; + this.title = undefined; + this.width = constants.edges.width; + this.value = undefined; + this.length = constants.physics.springLength; + this.selected = false; + this.smooth = constants.smoothCurves; + + this.from = null; // a node + this.to = null; // a node + this.via = null; // a temp node + + // we use this to be able to reconnect the edge to a cluster if its node is put into a cluster + // by storing the original information we can revert to the original connection when the cluser is opened. + this.originalFromId = []; + this.originalToId = []; + + this.connected = false; + + // Added to support dashed lines + // David Jordan + // 2012-08-08 + this.dash = util.extend({}, constants.edges.dash); // contains properties length, gap, altLength + + this.color = constants.edges.color; + this.widthFixed = false; + this.lengthFixed = false; + + this.setProperties(properties, constants); +} + +/** + * Set or overwrite properties for the edge + * @param {Object} properties an object with properties + * @param {Object} constants and object with default, global properties + */ +Edge.prototype.setProperties = function(properties, constants) { + if (!properties) { + return; + } + + if (properties.from !== undefined) {this.fromId = properties.from;} + if (properties.to !== undefined) {this.toId = properties.to;} + + if (properties.id !== undefined) {this.id = properties.id;} + if (properties.style !== undefined) {this.style = properties.style;} + if (properties.label !== undefined) {this.label = properties.label;} + + if (this.label) { + this.fontSize = constants.edges.fontSize; + this.fontFace = constants.edges.fontFace; + this.fontColor = constants.edges.fontColor; + if (properties.fontColor !== undefined) {this.fontColor = properties.fontColor;} + if (properties.fontSize !== undefined) {this.fontSize = properties.fontSize;} + if (properties.fontFace !== undefined) {this.fontFace = properties.fontFace;} + } + + if (properties.title !== undefined) {this.title = properties.title;} + if (properties.width !== undefined) {this.width = properties.width;} + if (properties.value !== undefined) {this.value = properties.value;} + if (properties.length !== undefined) {this.length = properties.length;} + + // Added to support dashed lines + // David Jordan + // 2012-08-08 + if (properties.dash) { + if (properties.dash.length !== undefined) {this.dash.length = properties.dash.length;} + if (properties.dash.gap !== undefined) {this.dash.gap = properties.dash.gap;} + if (properties.dash.altLength !== undefined) {this.dash.altLength = properties.dash.altLength;} + } + + if (properties.color !== undefined) {this.color = properties.color;} + + // A node is connected when it has a from and to node. + this.connect(); + + this.widthFixed = this.widthFixed || (properties.width !== undefined); + this.lengthFixed = this.lengthFixed || (properties.length !== undefined); + + // set draw method based on style + switch (this.style) { + case 'line': this.draw = this._drawLine; break; + case 'arrow': this.draw = this._drawArrow; break; + case 'arrow-center': this.draw = this._drawArrowCenter; break; + case 'dash-line': this.draw = this._drawDashLine; break; + default: this.draw = this._drawLine; break; + } +}; + +/** + * Connect an edge to its nodes + */ +Edge.prototype.connect = function () { + this.disconnect(); + + this.from = this.graph.nodes[this.fromId] || null; + this.to = this.graph.nodes[this.toId] || null; + this.connected = (this.from && this.to); + + if (this.connected) { + this.from.attachEdge(this); + this.to.attachEdge(this); + } + else { + if (this.from) { + this.from.detachEdge(this); + } + if (this.to) { + this.to.detachEdge(this); + } + } +}; + +/** + * Disconnect an edge from its nodes + */ +Edge.prototype.disconnect = function () { + if (this.from) { + this.from.detachEdge(this); + this.from = null; + } + if (this.to) { + this.to.detachEdge(this); + this.to = null; + } + + this.connected = false; +}; + +/** + * get the title of this edge. + * @return {string} title The title of the edge, or undefined when no title + * has been set. + */ +Edge.prototype.getTitle = function() { + return this.title; +}; + + +/** + * Retrieve the value of the edge. Can be undefined + * @return {Number} value + */ +Edge.prototype.getValue = function() { + return this.value; +}; + +/** + * Adjust the value range of the edge. The edge will adjust it's width + * based on its value. + * @param {Number} min + * @param {Number} max + */ +Edge.prototype.setValueRange = function(min, max) { + if (!this.widthFixed && this.value !== undefined) { + var scale = (this.widthMax - this.widthMin) / (max - min); + this.width = (this.value - min) * scale + this.widthMin; + } +}; + +/** + * Redraw a edge + * Draw this edge in the given canvas + * The 2d context of a HTML canvas can be retrieved by canvas.getContext("2d"); + * @param {CanvasRenderingContext2D} ctx + */ +Edge.prototype.draw = function(ctx) { + throw "Method draw not initialized in edge"; +}; + +/** + * Check if this object is overlapping with the provided object + * @param {Object} obj an object with parameters left, top + * @return {boolean} True if location is located on the edge + */ +Edge.prototype.isOverlappingWith = function(obj) { + var distMax = 10; + + var xFrom = this.from.x; + var yFrom = this.from.y; + var xTo = this.to.x; + var yTo = this.to.y; + var xObj = obj.left; + var yObj = obj.top; + + var dist = this._getDistanceToEdge(xFrom, yFrom, xTo, yTo, xObj, yObj); + + return (dist < distMax); +}; + + +/** + * Redraw a edge as a line + * Draw this edge in the given canvas + * The 2d context of a HTML canvas can be retrieved by canvas.getContext("2d"); + * @param {CanvasRenderingContext2D} ctx + * @private + */ +Edge.prototype._drawLine = function(ctx) { + // set style + ctx.strokeStyle = this.color; + ctx.lineWidth = this._getLineWidth(); + + var point; + if (this.from != this.to+9) { + // draw line + this._line(ctx); + + // draw label + if (this.label) { + point = this._pointOnLine(0.5); + this._label(ctx, this.label, point.x, point.y); + } + } + else { + var x, y; + var radius = this.length / 4; + var node = this.from; + if (!node.width) { + node.resize(ctx); + } + if (node.width > node.height) { + x = node.x + node.width / 2; + y = node.y - radius; + } + else { + x = node.x + radius; + y = node.y - node.height / 2; + } + this._circle(ctx, x, y, radius); + point = this._pointOnCircle(x, y, radius, 0.5); + this._label(ctx, this.label, point.x, point.y); + } +}; + +/** + * Get the line width of the edge. Depends on width and whether one of the + * connected nodes is selected. + * @return {Number} width + * @private + */ +Edge.prototype._getLineWidth = function() { + if (this.selected == true) { + return Math.min(this.width * 2, this.widthMax)*this.graphScaleInv; + } + else { + return this.width*this.graphScaleInv; + } +}; + +/** + * Draw a line between two nodes + * @param {CanvasRenderingContext2D} ctx + * @private + */ +Edge.prototype._line = function (ctx) { + // draw a straight line + ctx.beginPath(); + ctx.moveTo(this.from.x, this.from.y); + if (this.smooth == true) { + ctx.quadraticCurveTo(this.via.x,this.via.y,this.to.x, this.to.y); + } + else { + ctx.lineTo(this.to.x, this.to.y); + } + ctx.stroke(); +}; + +/** + * Draw a line from a node to itself, a circle + * @param {CanvasRenderingContext2D} ctx + * @param {Number} x + * @param {Number} y + * @param {Number} radius + * @private + */ +Edge.prototype._circle = function (ctx, x, y, radius) { + // draw a circle + ctx.beginPath(); + ctx.arc(x, y, radius, 0, 2 * Math.PI, false); + ctx.stroke(); +}; + +/** + * Draw label with white background and with the middle at (x, y) + * @param {CanvasRenderingContext2D} ctx + * @param {String} text + * @param {Number} x + * @param {Number} y + * @private + */ +Edge.prototype._label = function (ctx, text, x, y) { + if (text) { + // TODO: cache the calculated size + ctx.font = ((this.from.selected || this.to.selected) ? "bold " : "") + + this.fontSize + "px " + this.fontFace; + ctx.fillStyle = 'white'; + var width = ctx.measureText(text).width; + var height = this.fontSize; + var left = x - width / 2; + var top = y - height / 2; + + ctx.fillRect(left, top, width, height); + + // draw text + ctx.fillStyle = this.fontColor || "black"; + ctx.textAlign = "left"; + ctx.textBaseline = "top"; + ctx.fillText(text, left, top); + } +}; + +/** + * Redraw a edge as a dashed line + * Draw this edge in the given canvas + * @author David Jordan + * @date 2012-08-08 + * The 2d context of a HTML canvas can be retrieved by canvas.getContext("2d"); + * @param {CanvasRenderingContext2D} ctx + * @private + */ +Edge.prototype._drawDashLine = function(ctx) { + // set style + ctx.strokeStyle = this.color; + ctx.lineWidth = this._getLineWidth(); + + // only firefox and chrome support this method, else we use the legacy one. + if (ctx.mozDash !== undefined || ctx.setLineDash !== undefined) { + ctx.beginPath(); + ctx.moveTo(this.from.x, this.from.y); + + // configure the dash pattern + var pattern = [0]; + if (this.dash.length !== undefined && this.dash.gap !== undefined) { + pattern = [this.dash.length,this.dash.gap]; + } + else { + pattern = [5,5]; + } + + // set dash settings for chrome or firefox + if (typeof ctx.setLineDash !== 'undefined') { //Chrome + ctx.setLineDash(pattern); + ctx.lineDashOffset = 0; + + } else { //Firefox + ctx.mozDash = pattern; + ctx.mozDashOffset = 0; + } + + // draw the line + if (this.smooth == true) { + ctx.quadraticCurveTo(this.via.x,this.via.y,this.to.x, this.to.y); + } + else { + ctx.lineTo(this.to.x, this.to.y); + } + ctx.stroke(); + + // restore the dash settings. + if (typeof ctx.setLineDash !== 'undefined') { //Chrome + ctx.setLineDash([0]); + ctx.lineDashOffset = 0; + + } else { //Firefox + ctx.mozDash = [0]; + ctx.mozDashOffset = 0; + } + } + else { // unsupporting smooth lines + // draw dashed line + ctx.beginPath(); + ctx.lineCap = 'round'; + if (this.dash.altLength !== undefined) //If an alt dash value has been set add to the array this value + { + ctx.dashedLine(this.from.x,this.from.y,this.to.x,this.to.y, + [this.dash.length,this.dash.gap,this.dash.altLength,this.dash.gap]); + } + else if (this.dash.length !== undefined && this.dash.gap !== undefined) //If a dash and gap value has been set add to the array this value + { + ctx.dashedLine(this.from.x,this.from.y,this.to.x,this.to.y, + [this.dash.length,this.dash.gap]); + } + else //If all else fails draw a line + { + ctx.moveTo(this.from.x, this.from.y); + ctx.lineTo(this.to.x, this.to.y); + } + ctx.stroke(); + } + + // draw label + if (this.label) { + var point = this._pointOnLine(0.5); + this._label(ctx, this.label, point.x, point.y); + } +}; + +/** + * Get a point on a line + * @param {Number} percentage. Value between 0 (line start) and 1 (line end) + * @return {Object} point + * @private + */ +Edge.prototype._pointOnLine = function (percentage) { + return { + x: (1 - percentage) * this.from.x + percentage * this.to.x, + y: (1 - percentage) * this.from.y + percentage * this.to.y + } +}; + +/** + * Get a point on a circle + * @param {Number} x + * @param {Number} y + * @param {Number} radius + * @param {Number} percentage. Value between 0 (line start) and 1 (line end) + * @return {Object} point + * @private + */ +Edge.prototype._pointOnCircle = function (x, y, radius, percentage) { + var angle = (percentage - 3/8) * 2 * Math.PI; + return { + x: x + radius * Math.cos(angle), + y: y - radius * Math.sin(angle) + } +}; + +/** + * Redraw a edge as a line with an arrow halfway the line + * Draw this edge in the given canvas + * The 2d context of a HTML canvas can be retrieved by canvas.getContext("2d"); + * @param {CanvasRenderingContext2D} ctx + * @private + */ +Edge.prototype._drawArrowCenter = function(ctx) { + var point; + // set style + ctx.strokeStyle = this.color; + ctx.fillStyle = this.color; + ctx.lineWidth = this._getLineWidth(); + + if (this.from != this.to) { + // draw line + this._line(ctx); + + var angle = Math.atan2((this.to.y - this.from.y), (this.to.x - this.from.x)); + var length = 10 + 5 * this.width; // TODO: make customizable? + // draw an arrow halfway the line + if (this.smooth == true) { + var midpointX = 0.5*(0.5*(this.from.x + this.via.x) + 0.5*(this.to.x + this.via.x)); + var midpointY = 0.5*(0.5*(this.from.y + this.via.y) + 0.5*(this.to.y + this.via.y)); + point = {x:midpointX, y:midpointY}; + } + else { + point = this._pointOnLine(0.5); + } + + ctx.arrow(point.x, point.y, angle, length); + ctx.fill(); + ctx.stroke(); + + // draw label + if (this.label) { + point = this._pointOnLine(0.5); + this._label(ctx, this.label, point.x, point.y); + } + } + else { + // draw circle + var x, y; + var radius = 0.25 * Math.max(100,this.length); + var node = this.from; + if (!node.width) { + node.resize(ctx); + } + if (node.width > node.height) { + x = node.x + node.width * 0.5; + y = node.y - radius; + } + else { + x = node.x + radius; + y = node.y - node.height * 0.5; + } + this._circle(ctx, x, y, radius); + + // draw all arrows + var angle = 0.2 * Math.PI; + var length = 10 + 5 * this.width; // TODO: make customizable? + point = this._pointOnCircle(x, y, radius, 0.5); + ctx.arrow(point.x, point.y, angle, length); + ctx.fill(); + ctx.stroke(); + + // draw label + if (this.label) { + point = this._pointOnCircle(x, y, radius, 0.5); + this._label(ctx, this.label, point.x, point.y); + } + } +}; + + + +/** + * Redraw a edge as a line with an arrow + * Draw this edge in the given canvas + * The 2d context of a HTML canvas can be retrieved by canvas.getContext("2d"); + * @param {CanvasRenderingContext2D} ctx + * @private + */ +Edge.prototype._drawArrow = function(ctx) { + // set style + ctx.strokeStyle = this.color; + ctx.fillStyle = this.color; + ctx.lineWidth = this._getLineWidth(); + + var angle, length; + //draw a line + if (this.from != this.to) { + angle = Math.atan2((this.to.y - this.from.y), (this.to.x - this.from.x)); + var dx = (this.to.x - this.from.x); + var dy = (this.to.y - this.from.y); + var edgeSegmentLength = Math.sqrt(dx * dx + dy * dy); + + var fromBorderDist = this.from.distanceToBorder(ctx, angle + Math.PI); + var fromBorderPoint = (edgeSegmentLength - fromBorderDist) / edgeSegmentLength; + var xFrom = (fromBorderPoint) * this.from.x + (1 - fromBorderPoint) * this.to.x; + var yFrom = (fromBorderPoint) * this.from.y + (1 - fromBorderPoint) * this.to.y; + + + if (this.smooth == true) { + angle = Math.atan2((this.to.y - this.via.y), (this.to.x - this.via.x)); + dx = (this.to.x - this.via.x); + dy = (this.to.y - this.via.y); + edgeSegmentLength = Math.sqrt(dx * dx + dy * dy); + } + var toBorderDist = this.to.distanceToBorder(ctx, angle); + var toBorderPoint = (edgeSegmentLength - toBorderDist) / edgeSegmentLength; + + var xTo,yTo; + if (this.smooth == true) { + xTo = (1 - toBorderPoint) * this.via.x + toBorderPoint * this.to.x; + yTo = (1 - toBorderPoint) * this.via.y + toBorderPoint * this.to.y; + } + else { + xTo = (1 - toBorderPoint) * this.from.x + toBorderPoint * this.to.x; + yTo = (1 - toBorderPoint) * this.from.y + toBorderPoint * this.to.y; + } + + ctx.beginPath(); + ctx.moveTo(xFrom,yFrom); + if (this.smooth == true) { + ctx.quadraticCurveTo(this.via.x,this.via.y,xTo, yTo); + } + else { + ctx.lineTo(xTo, yTo); + } + ctx.stroke(); + + // draw arrow at the end of the line + length = 10 + 5 * this.width; + ctx.arrow(xTo, yTo, angle, length); + ctx.fill(); + ctx.stroke(); + + // draw label + if (this.label) { + var point = this._pointOnLine(0.5); + this._label(ctx, this.label, point.x, point.y); + } + } + else { + // draw circle + var node = this.from; + var x, y, arrow; + var radius = 0.25 * Math.max(100,this.length); + if (!node.width) { + node.resize(ctx); + } + if (node.width > node.height) { + x = node.x + node.width * 0.5; + y = node.y - radius; + arrow = { + x: x, + y: node.y, + angle: 0.9 * Math.PI + }; + } + else { + x = node.x + radius; + y = node.y - node.height * 0.5; + arrow = { + x: node.x, + y: y, + angle: 0.6 * Math.PI + }; + } + ctx.beginPath(); + // TODO: similarly, for a line without arrows, draw to the border of the nodes instead of the center + ctx.arc(x, y, radius, 0, 2 * Math.PI, false); + ctx.stroke(); + + // draw all arrows + length = 10 + 5 * this.width; // TODO: make customizable? + ctx.arrow(arrow.x, arrow.y, arrow.angle, length); + ctx.fill(); + ctx.stroke(); + + // draw label + if (this.label) { + point = this._pointOnCircle(x, y, radius, 0.5); + this._label(ctx, this.label, point.x, point.y); + } + } +}; + + + +/** + * Calculate the distance between a point (x3,y3) and a line segment from + * (x1,y1) to (x2,y2). + * http://stackoverflow.com/questions/849211/shortest-distancae-between-a-point-and-a-line-segment + * @param {number} x1 + * @param {number} y1 + * @param {number} x2 + * @param {number} y2 + * @param {number} x3 + * @param {number} y3 + * @private + */ +Edge.prototype._getDistanceToEdge = function (x1,y1, x2,y2, x3,y3) { // x3,y3 is the point + if (this.smooth == true) { + var minDistance = 1e9; + var i,t,x,y,dx,dy; + for (i = 0; i < 10; i++) { + t = 0.1*i; + x = Math.pow(1-t,2)*x1 + (2*t*(1 - t))*this.via.x + Math.pow(t,2)*x2; + y = Math.pow(1-t,2)*y1 + (2*t*(1 - t))*this.via.y + Math.pow(t,2)*y2; + dx = Math.abs(x3-x); + dy = Math.abs(y3-y); + minDistance = Math.min(minDistance,Math.sqrt(dx*dx + dy*dy)); + } + return minDistance + } + else { + var px = x2-x1, + py = y2-y1, + something = px*px + py*py, + u = ((x3 - x1) * px + (y3 - y1) * py) / something; + + if (u > 1) { + u = 1; + } + else if (u < 0) { + u = 0; + } + + var x = x1 + u * px, + y = y1 + u * py, + dx = x - x3, + dy = y - y3; + + //# Note: If the actual distance does not matter, + //# if you only want to compare what this function + //# returns to other results of this function, you + //# can just return the squared distance instead + //# (i.e. remove the sqrt) to gain a little performance + + return Math.sqrt(dx*dx + dy*dy); + } +}; + + + +/** + * This allows the zoom level of the graph to influence the rendering + * + * @param scale + */ +Edge.prototype.setScale = function(scale) { + this.graphScaleInv = 1.0/scale; +}; + + +Edge.prototype.select = function() { + this.selected = true; +}; + +Edge.prototype.unselect = function() { + this.selected = false; +}; + +Edge.prototype.positionBezierNode = function() { + if (this.via !== null) { + this.via.x = 0.5 * (this.from.x + this.to.x); + this.via.y = 0.5 * (this.from.y + this.to.y); + } +}; +/** + * Popup is a class to create a popup window with some text + * @param {Element} container The container object. + * @param {Number} [x] + * @param {Number} [y] + * @param {String} [text] + */ +function Popup(container, x, y, text) { + if (container) { + this.container = container; + } + else { + this.container = document.body; + } + this.x = 0; + this.y = 0; + this.padding = 5; + + if (x !== undefined && y !== undefined ) { + this.setPosition(x, y); + } + if (text !== undefined) { + this.setText(text); + } + + // create the frame + this.frame = document.createElement("div"); + var style = this.frame.style; + style.position = "absolute"; + style.visibility = "hidden"; + style.border = "1px solid #666"; + style.color = "black"; + style.padding = this.padding + "px"; + style.backgroundColor = "#FFFFC6"; + style.borderRadius = "3px"; + style.MozBorderRadius = "3px"; + style.WebkitBorderRadius = "3px"; + style.boxShadow = "3px 3px 10px rgba(128, 128, 128, 0.5)"; + style.whiteSpace = "nowrap"; + this.container.appendChild(this.frame); +} + +/** + * @param {number} x Horizontal position of the popup window + * @param {number} y Vertical position of the popup window + */ +Popup.prototype.setPosition = function(x, y) { + this.x = parseInt(x); + this.y = parseInt(y); +}; + +/** + * Set the text for the popup window. This can be HTML code + * @param {string} text + */ +Popup.prototype.setText = function(text) { + this.frame.innerHTML = text; +}; + +/** + * Show the popup window + * @param {boolean} show Optional. Show or hide the window + */ +Popup.prototype.show = function (show) { + if (show === undefined) { + show = true; + } + + if (show) { + var height = this.frame.clientHeight; + var width = this.frame.clientWidth; + var maxHeight = this.frame.parentNode.clientHeight; + var maxWidth = this.frame.parentNode.clientWidth; + + var top = (this.y - height); + if (top + height + this.padding > maxHeight) { + top = maxHeight - height - this.padding; + } + if (top < this.padding) { + top = this.padding; + } + + var left = this.x; + if (left + width + this.padding > maxWidth) { + left = maxWidth - width - this.padding; + } + if (left < this.padding) { + left = this.padding; + } + + this.frame.style.left = left + "px"; + this.frame.style.top = top + "px"; + this.frame.style.visibility = "visible"; + } + else { + this.hide(); + } +}; + +/** + * Hide the popup window + */ +Popup.prototype.hide = function () { + this.frame.style.visibility = "hidden"; +}; + +/** + * @class Groups + * This class can store groups and properties specific for groups. + */ +Groups = function () { + this.clear(); + this.defaultIndex = 0; +}; + + +/** + * default constants for group colors + */ +Groups.DEFAULT = [ + {border: "#2B7CE9", background: "#97C2FC", highlight: {border: "#2B7CE9", background: "#D2E5FF"}}, // blue + {border: "#FFA500", background: "#FFFF00", highlight: {border: "#FFA500", background: "#FFFFA3"}}, // yellow + {border: "#FA0A10", background: "#FB7E81", highlight: {border: "#FA0A10", background: "#FFAFB1"}}, // red + {border: "#41A906", background: "#7BE141", highlight: {border: "#41A906", background: "#A1EC76"}}, // green + {border: "#E129F0", background: "#EB7DF4", highlight: {border: "#E129F0", background: "#F0B3F5"}}, // magenta + {border: "#7C29F0", background: "#AD85E4", highlight: {border: "#7C29F0", background: "#D3BDF0"}}, // purple + {border: "#C37F00", background: "#FFA807", highlight: {border: "#C37F00", background: "#FFCA66"}}, // orange + {border: "#4220FB", background: "#6E6EFD", highlight: {border: "#4220FB", background: "#9B9BFD"}}, // darkblue + {border: "#FD5A77", background: "#FFC0CB", highlight: {border: "#FD5A77", background: "#FFD1D9"}}, // pink + {border: "#4AD63A", background: "#C2FABC", highlight: {border: "#4AD63A", background: "#E6FFE3"}} // mint +]; + + +/** + * Clear all groups + */ +Groups.prototype.clear = function () { + this.groups = {}; + this.groups.length = function() + { + var i = 0; + for ( var p in this ) { + if (this.hasOwnProperty(p)) { + i++; + } + } + return i; + } +}; + + +/** + * get group properties of a groupname. If groupname is not found, a new group + * is added. + * @param {*} groupname Can be a number, string, Date, etc. + * @return {Object} group The created group, containing all group properties + */ +Groups.prototype.get = function (groupname) { + var group = this.groups[groupname]; + + if (group == undefined) { + // create new group + var index = this.defaultIndex % Groups.DEFAULT.length; + this.defaultIndex++; + group = {}; + group.color = Groups.DEFAULT[index]; + this.groups[groupname] = group; + } + + return group; +}; + +/** + * Add a custom group style + * @param {String} groupname + * @param {Object} style An object containing borderColor, + * backgroundColor, etc. + * @return {Object} group The created group object + */ +Groups.prototype.add = function (groupname, style) { + this.groups[groupname] = style; + if (style.color) { + style.color = Node.parseColor(style.color); + } + return style; +}; + +/** + * @class Images + * This class loads images and keeps them stored. + */ +Images = function () { + this.images = {}; + + this.callback = undefined; +}; + +/** + * Set an onload callback function. This will be called each time an image + * is loaded + * @param {function} callback + */ +Images.prototype.setOnloadCallback = function(callback) { + this.callback = callback; +}; + +/** + * + * @param {string} url Url of the image + * @return {Image} img The image object + */ +Images.prototype.load = function(url) { + var img = this.images[url]; + if (img == undefined) { + // create the image + var images = this; + img = new Image(); + this.images[url] = img; + img.onload = function() { + if (images.callback) { + images.callback(this); + } + }; + img.src = url; + } + + return img; +}; + +/** + * Created by Alex on 2/6/14. + */ + + +var physicsMixin = { + + /** + * Toggling barnes Hut calculation on and off. + * + * @private + */ + _toggleBarnesHut : function() { + this.constants.physics.barnesHut.enabled = !this.constants.physics.barnesHut.enabled; + this._loadSelectedForceSolver(); + this.moving = true; + this.start(); + }, + + + /** + * Before calculating the forces, we check if we need to cluster to keep up performance and we check + * if there is more than one node. If it is just one node, we dont calculate anything. + * + * @private + */ + _initializeForceCalculation : function() { + // stop calculation if there is only one node + if (this.nodeIndices.length == 1) { + this.nodes[this.nodeIndices[0]]._setForce(0,0); + } + else { + // if there are too many nodes on screen, we cluster without repositioning + if (this.nodeIndices.length > this.constants.clustering.clusterThreshold && this.constants.clustering.enabled == true) { + this.clusterToFit(this.constants.clustering.reduceToNodes, false); + } + + // we now start the force calculation + this._calculateForces(); + } + }, + + + /** + * Calculate the external forces acting on the nodes + * Forces are caused by: edges, repulsing forces between nodes, gravity + * @private + */ + _calculateForces : function() { + // Gravity is required to keep separated groups from floating off + // the forces are reset to zero in this loop by using _setForce instead + // of _addForce + + this._calculateGravitationalForces(); + this._calculateNodeForces(); + + + if (this.constants.smoothCurves == true) { + this._calculateSpringForcesWithSupport(); + } + else { + this._calculateSpringForces(); + } + }, + + + /** + * Smooth curves are created by adding invisible nodes in the center of the edges. These nodes are also + * handled in the calculateForces function. We then use a quadratic curve with the center node as control. + * This function joins the datanodes and invisible (called support) nodes into one object. + * We do this so we do not contaminate this.nodes with the support nodes. + * + * @private + */ + _updateCalculationNodes : function() { + if (this.constants.smoothCurves == true) { + this.calculationNodes = {}; + this.calculationNodeIndices = []; + + for (var nodeId in this.nodes) { + if (this.nodes.hasOwnProperty(nodeId)) { + this.calculationNodes[nodeId] = this.nodes[nodeId]; + } + } + var supportNodes = this.sectors['support']['nodes']; + for (var supportNodeId in supportNodes) { + if (supportNodes.hasOwnProperty(supportNodeId)) { + if (this.edges.hasOwnProperty(supportNodes[supportNodeId].parentEdgeId)) { + this.calculationNodes[supportNodeId] = supportNodes[supportNodeId]; + } + else { + supportNodes[supportNodeId]._setForce(0,0); + } + } + } + + for (var idx in this.calculationNodes) { + if (this.calculationNodes.hasOwnProperty(idx)) { + this.calculationNodeIndices.push(idx); + } + } + } + else { + this.calculationNodes = this.nodes; + this.calculationNodeIndices = this.nodeIndices; + } + }, + + + /** + * this function applies the central gravity effect to keep groups from floating off + * + * @private + */ + _calculateGravitationalForces : function() { + var dx, dy, distance, node, i; + var nodes = this.calculationNodes; + var gravity = this.constants.physics.centralGravity; + var gravityForce = 0; + + for (i = 0; i < this.calculationNodeIndices.length; i++) { + node = nodes[this.calculationNodeIndices[i]]; + node.damping = this.constants.physics.damping; // possibly add function to alter damping properties of clusters. + // gravity does not apply when we are in a pocket sector + if (this._sector() == "default" && gravity != 0) { + dx = -node.x; + dy = -node.y; + distance = Math.sqrt(dx*dx + dy*dy); + gravityForce = gravity / distance; + + node.fx = dx * gravityForce; + node.fy = dy * gravityForce; + } + else { + node.fx = 0; + node.fy = 0; + } + } + }, + + + /** + * this function calculates the effects of the springs in the case of unsmooth curves. + * + * @private + */ + _calculateSpringForces : function() { + var edgeLength, edge, edgeId; + var dx, dy, fx, fy, springForce, length; + var edges = this.edges; + + // forces caused by the edges, modelled as springs + for (edgeId in edges) { + if (edges.hasOwnProperty(edgeId)) { + edge = edges[edgeId]; + if (edge.connected) { + // only calculate forces if nodes are in the same sector + if (this.nodes.hasOwnProperty(edge.toId) && this.nodes.hasOwnProperty(edge.fromId)) { + edgeLength = edge.length; + // this implies that the edges between big clusters are longer + edgeLength += (edge.to.clusterSize + edge.from.clusterSize - 2) * this.constants.clustering.edgeGrowth; + + dx = (edge.from.x - edge.to.x); + dy = (edge.from.y - edge.to.y); + length = Math.sqrt(dx * dx + dy * dy); + + if (length == 0) { + length = 0.01; + } + + springForce = this.constants.physics.springConstant * (edgeLength - length) / length; + + fx = dx * springForce; + fy = dy * springForce; + + edge.from.fx += fx; + edge.from.fy += fy; + edge.to.fx -= fx; + edge.to.fy -= fy; + } + } + } + } + }, + + + /** + * This function calculates the springforces on the nodes, accounting for the support nodes. + * + * @private + */ + _calculateSpringForcesWithSupport : function() { + var edgeLength, edge, edgeId, combinedClusterSize; + var edges = this.edges; + + // forces caused by the edges, modelled as springs + for (edgeId in edges) { + if (edges.hasOwnProperty(edgeId)) { + edge = edges[edgeId]; + if (edge.connected) { + // only calculate forces if nodes are in the same sector + if (this.nodes.hasOwnProperty(edge.toId) && this.nodes.hasOwnProperty(edge.fromId)) { + if (edge.via != null) { + var node1 = edge.to; + var node2 = edge.via; + var node3 = edge.from; + + edgeLength = edge.length; + + combinedClusterSize = node1.clusterSize + node3.clusterSize - 2; + + // this implies that the edges between big clusters are longer + edgeLength += combinedClusterSize * this.constants.clustering.edgeGrowth; + this._calculateSpringForce(node1,node2,0.5*edgeLength); + this._calculateSpringForce(node2,node3,0.5*edgeLength); + } + } + } + } + } + }, + + + /** + * This is the code actually performing the calculation for the function above. It is split out to avoid repetition. + * + * @param node1 + * @param node2 + * @param edgeLength + * @private + */ + _calculateSpringForce : function(node1,node2,edgeLength) { + var dx, dy, fx, fy, springForce, length; + + dx = (node1.x - node2.x); + dy = (node1.y - node2.y); + length = Math.sqrt(dx * dx + dy * dy); + + springForce = this.constants.physics.springConstant * (edgeLength - length) / length; + + fx = dx * springForce; + fy = dy * springForce; + + node1.fx += fx; + node1.fy += fy; + node2.fx -= fx; + node2.fy -= fy; + } +} +/** + * Created by Alex on 2/10/14. + */ + +var hierarchalRepulsionMixin = { + + + /** + * Calculate the forces the nodes apply on eachother based on a repulsion field. + * This field is linearly approximated. + * + * @private + */ + _calculateNodeForces : function() { + var dx, dy, distance, fx, fy, combinedClusterSize, + repulsingForce, node1, node2, i, j; + + var nodes = this.calculationNodes; + var nodeIndices = this.calculationNodeIndices; + + // approximation constants + var b = 5; + var a_base = 0.5*-b; + + + // repulsing forces between nodes + var nodeDistance = this.constants.physics.repulsion.nodeDistance; + var minimumDistance = nodeDistance; + + // we loop from i over all but the last entree in the array + // j loops from i+1 to the last. This way we do not double count any of the indices, nor i == j + for (i = 0; i < nodeIndices.length-1; i++) { + + node1 = nodes[nodeIndices[i]]; + for (j = i+1; j < nodeIndices.length; j++) { + node2 = nodes[nodeIndices[j]]; + + dx = node2.x - node1.x; + dy = node2.y - node1.y; + distance = Math.sqrt(dx * dx + dy * dy); + + var a = a_base / minimumDistance; + if (distance < 2*minimumDistance) { + repulsingForce = a * distance + b; // linear approx of 1 / (1 + Math.exp((distance / minimumDistance - 1) * steepness)) + + // normalize force with + if (distance == 0) { + distance = 0.01; + } + else { + repulsingForce = repulsingForce/distance; + } + fx = dx * repulsingForce; + fy = dy * repulsingForce; + + node1.fx -= fx; + node1.fy -= fy; + node2.fx += fx; + node2.fy += fy; + } + } + } + } +} +/** + * Created by Alex on 2/10/14. + */ + +var barnesHutMixin = { + + /** + * This function calculates the forces the nodes apply on eachother based on a gravitational model. + * The Barnes Hut method is used to speed up this N-body simulation. + * + * @private + */ + _calculateNodeForces : function() { + var node; + var nodes = this.calculationNodes; + var nodeIndices = this.calculationNodeIndices; + var nodeCount = nodeIndices.length; + + this._formBarnesHutTree(nodes,nodeIndices); + + var barnesHutTree = this.barnesHutTree; + + // place the nodes one by one recursively + for (var i = 0; i < nodeCount; i++) { + node = nodes[nodeIndices[i]]; + // starting with root is irrelevant, it never passes the BarnesHut condition + this._getForceContribution(barnesHutTree.root.children.NW,node); + this._getForceContribution(barnesHutTree.root.children.NE,node); + this._getForceContribution(barnesHutTree.root.children.SW,node); + this._getForceContribution(barnesHutTree.root.children.SE,node); + } + }, + + + /** + * This function traverses the barnesHutTree. It checks when it can approximate distant nodes with their center of mass. + * If a region contains a single node, we check if it is not itself, then we apply the force. + * + * @param parentBranch + * @param node + * @private + */ + _getForceContribution : function(parentBranch,node) { + // we get no force contribution from an empty region + if (parentBranch.childrenCount > 0) { + var dx,dy,distance; + + // get the distance from the center of mass to the node. + dx = parentBranch.centerOfMass.x - node.x; + dy = parentBranch.centerOfMass.y - node.y; + distance = Math.sqrt(dx * dx + dy * dy); + + // BarnesHut condition + // original condition : s/d < theta = passed === d/s > 1/theta = passed + // calcSize = 1/s --> d * 1/s > 1/theta = passed + if (distance * parentBranch.calcSize > this.constants.physics.barnesHut.theta) { + // duplicate code to reduce function calls to speed up program + if (distance == 0) { + distance = 0.1*Math.random(); + dx = distance; + } + var gravityForce = this.constants.physics.barnesHut.gravitationalConstant * parentBranch.mass * node.mass / (distance * distance * distance); + var fx = dx * gravityForce; + var fy = dy * gravityForce; + node.fx += fx; + node.fy += fy; + } + else { + // Did not pass the condition, go into children if available + if (parentBranch.childrenCount == 4) { + this._getForceContribution(parentBranch.children.NW,node); + this._getForceContribution(parentBranch.children.NE,node); + this._getForceContribution(parentBranch.children.SW,node); + this._getForceContribution(parentBranch.children.SE,node); + } + else { // parentBranch must have only one node, if it was empty we wouldnt be here + if (parentBranch.children.data.id != node.id) { // if it is not self + // duplicate code to reduce function calls to speed up program + if (distance == 0) { + distance = 0.5*Math.random(); + dx = distance; + } + var gravityForce = this.constants.physics.barnesHut.gravitationalConstant * parentBranch.mass * node.mass / (distance * distance * distance); + var fx = dx * gravityForce; + var fy = dy * gravityForce; + node.fx += fx; + node.fy += fy; + } + } + } + } + }, + + /** + * This function constructs the barnesHut tree recursively. It creates the root, splits it and starts placing the nodes. + * + * @param nodes + * @param nodeIndices + * @private + */ + _formBarnesHutTree : function(nodes,nodeIndices) { + var node; + var nodeCount = nodeIndices.length; + + var minX = Number.MAX_VALUE, + minY = Number.MAX_VALUE, + maxX =-Number.MAX_VALUE, + maxY =-Number.MAX_VALUE; + + // get the range of the nodes + for (var i = 0; i < nodeCount; i++) { + var x = nodes[nodeIndices[i]].x; + var y = nodes[nodeIndices[i]].y; + if (x < minX) { minX = x; } + if (x > maxX) { maxX = x; } + if (y < minY) { minY = y; } + if (y > maxY) { maxY = y; } + } + // make the range a square + var sizeDiff = Math.abs(maxX - minX) - Math.abs(maxY - minY); // difference between X and Y + if (sizeDiff > 0) {minY -= 0.5 * sizeDiff; maxY += 0.5 * sizeDiff;} // xSize > ySize + else {minX += 0.5 * sizeDiff; maxX -= 0.5 * sizeDiff;} // xSize < ySize + + + var minimumTreeSize = 1e-5; + var rootSize = Math.max(minimumTreeSize,Math.abs(maxX - minX)); + var halfRootSize = 0.5 * rootSize; + var centerX = 0.5 * (minX + maxX), centerY = 0.5 * (minY + maxY); + + // construct the barnesHutTree + var barnesHutTree = {root:{ + centerOfMass:{x:0,y:0}, // Center of Mass + mass:0, + range: {minX:centerX-halfRootSize,maxX:centerX+halfRootSize, + minY:centerY-halfRootSize,maxY:centerY+halfRootSize}, + size: rootSize, + calcSize: 1 / rootSize, + children: {data:null}, + maxWidth: 0, + level: 0, + childrenCount: 4 + }}; + this._splitBranch(barnesHutTree.root); + + // place the nodes one by one recursively + for (i = 0; i < nodeCount; i++) { + node = nodes[nodeIndices[i]]; + this._placeInTree(barnesHutTree.root,node); + } + + // make global + this.barnesHutTree = barnesHutTree + }, + + + _updateBranchMass : function(parentBranch, node) { + var totalMass = parentBranch.mass + node.mass; + var totalMassInv = 1/totalMass; + + parentBranch.centerOfMass.x = parentBranch.centerOfMass.x * parentBranch.mass + node.x * node.mass; + parentBranch.centerOfMass.x *= totalMassInv; + + parentBranch.centerOfMass.y = parentBranch.centerOfMass.y * parentBranch.mass + node.y * node.mass; + parentBranch.centerOfMass.y *= totalMassInv; + + parentBranch.mass = totalMass; + var biggestSize = Math.max(Math.max(node.height,node.radius),node.width); + parentBranch.maxWidth = (parentBranch.maxWidth < biggestSize) ? biggestSize : parentBranch.maxWidth; + + }, + + + _placeInTree : function(parentBranch,node,skipMassUpdate) { + if (skipMassUpdate != true || skipMassUpdate === undefined) { + // update the mass of the branch. + this._updateBranchMass(parentBranch,node); + } + + if (parentBranch.children.NW.range.maxX > node.x) { // in NW or SW + if (parentBranch.children.NW.range.maxY > node.y) { // in NW + this._placeInRegion(parentBranch,node,"NW"); + } + else { // in SW + this._placeInRegion(parentBranch,node,"SW"); + } + } + else { // in NE or SE + if (parentBranch.children.NW.range.maxY > node.y) { // in NE + this._placeInRegion(parentBranch,node,"NE"); + } + else { // in SE + this._placeInRegion(parentBranch,node,"SE"); + } + } + }, + + + _placeInRegion : function(parentBranch,node,region) { + switch (parentBranch.children[region].childrenCount) { + case 0: // place node here + parentBranch.children[region].children.data = node; + parentBranch.children[region].childrenCount = 1; + this._updateBranchMass(parentBranch.children[region],node); + break; + case 1: // convert into children + // if there are two nodes exactly overlapping (on init, on opening of cluster etc.) + // we move one node a pixel and we do not put it in the tree. + if (parentBranch.children[region].children.data.x == node.x && + parentBranch.children[region].children.data.y == node.y) { + node.x += Math.random(); + node.y += Math.random(); + this._placeInTree(parentBranch,node, true); + } + else { + this._splitBranch(parentBranch.children[region]); + this._placeInTree(parentBranch.children[region],node); + } + break; + case 4: // place in branch + this._placeInTree(parentBranch.children[region],node); + break; + } + }, + + + /** + * this function splits a branch into 4 sub branches. If the branch contained a node, we place it in the subbranch + * after the split is complete. + * + * @param parentBranch + * @private + */ + _splitBranch : function(parentBranch) { + // if the branch is filled with a node, replace the node in the new subset. + var containedNode = null; + if (parentBranch.childrenCount == 1) { + containedNode = parentBranch.children.data; + parentBranch.mass = 0; parentBranch.centerOfMass.x = 0; parentBranch.centerOfMass.y = 0; + } + parentBranch.childrenCount = 4; + parentBranch.children.data = null; + this._insertRegion(parentBranch,"NW"); + this._insertRegion(parentBranch,"NE"); + this._insertRegion(parentBranch,"SW"); + this._insertRegion(parentBranch,"SE"); + + if (containedNode != null) { + this._placeInTree(parentBranch,containedNode); + } + }, + + + /** + * This function subdivides the region into four new segments. + * Specifically, this inserts a single new segment. + * It fills the children section of the parentBranch + * + * @param parentBranch + * @param region + * @param parentRange + * @private + */ + _insertRegion : function(parentBranch, region) { + var minX,maxX,minY,maxY; + var childSize = 0.5 * parentBranch.size; + switch (region) { + case "NW": + minX = parentBranch.range.minX; + maxX = parentBranch.range.minX + childSize; + minY = parentBranch.range.minY; + maxY = parentBranch.range.minY + childSize; + break; + case "NE": + minX = parentBranch.range.minX + childSize; + maxX = parentBranch.range.maxX; + minY = parentBranch.range.minY; + maxY = parentBranch.range.minY + childSize; + break; + case "SW": + minX = parentBranch.range.minX; + maxX = parentBranch.range.minX + childSize; + minY = parentBranch.range.minY + childSize; + maxY = parentBranch.range.maxY; + break; + case "SE": + minX = parentBranch.range.minX + childSize; + maxX = parentBranch.range.maxX; + minY = parentBranch.range.minY + childSize; + maxY = parentBranch.range.maxY; + break; + } + + + parentBranch.children[region] = { + centerOfMass:{x:0,y:0}, + mass:0, + range:{minX:minX,maxX:maxX,minY:minY,maxY:maxY}, + size: 0.5 * parentBranch.size, + calcSize: 2 * parentBranch.calcSize, + children: {data:null}, + maxWidth: 0, + level: parentBranch.level+1, + childrenCount: 0 + }; + }, + + + /** + * This function is for debugging purposed, it draws the tree. + * + * @param ctx + * @param color + * @private + */ + _drawTree : function(ctx,color) { + if (this.barnesHutTree !== undefined) { + + ctx.lineWidth = 1; + + this._drawBranch(this.barnesHutTree.root,ctx,color); + } + }, + + + /** + * This function is for debugging purposes. It draws the branches recursively. + * + * @param branch + * @param ctx + * @param color + * @private + */ + _drawBranch : function(branch,ctx,color) { + if (color === undefined) { + color = "#FF0000"; + } + + if (branch.childrenCount == 4) { + this._drawBranch(branch.children.NW,ctx); + this._drawBranch(branch.children.NE,ctx); + this._drawBranch(branch.children.SE,ctx); + this._drawBranch(branch.children.SW,ctx); + } + ctx.strokeStyle = color; + ctx.beginPath(); + ctx.moveTo(branch.range.minX,branch.range.minY); + ctx.lineTo(branch.range.maxX,branch.range.minY); + ctx.stroke(); + + ctx.beginPath(); + ctx.moveTo(branch.range.maxX,branch.range.minY); + ctx.lineTo(branch.range.maxX,branch.range.maxY); + ctx.stroke(); + + ctx.beginPath(); + ctx.moveTo(branch.range.maxX,branch.range.maxY); + ctx.lineTo(branch.range.minX,branch.range.maxY); + ctx.stroke(); + + ctx.beginPath(); + ctx.moveTo(branch.range.minX,branch.range.maxY); + ctx.lineTo(branch.range.minX,branch.range.minY); + ctx.stroke(); + + /* + if (branch.mass > 0) { + ctx.circle(branch.centerOfMass.x, branch.centerOfMass.y, 3*branch.mass); + ctx.stroke(); + } + */ + } + +}; +/** + * Created by Alex on 2/10/14. + */ + +var repulsionMixin = { + + + /** + * Calculate the forces the nodes apply on eachother based on a repulsion field. + * This field is linearly approximated. + * + * @private + */ + _calculateNodeForces : function() { + var dx, dy, angle, distance, fx, fy, combinedClusterSize, + repulsingForce, node1, node2, i, j; + + var nodes = this.calculationNodes; + var nodeIndices = this.calculationNodeIndices; + + // approximation constants + var a_base = -2/3; + var b = 4/3; + + // repulsing forces between nodes + var nodeDistance = this.constants.physics.repulsion.nodeDistance; + var minimumDistance = nodeDistance; + + // we loop from i over all but the last entree in the array + // j loops from i+1 to the last. This way we do not double count any of the indices, nor i == j + for (i = 0; i < nodeIndices.length-1; i++) { + node1 = nodes[nodeIndices[i]]; + for (j = i+1; j < nodeIndices.length; j++) { + node2 = nodes[nodeIndices[j]]; + combinedClusterSize = node1.clusterSize + node2.clusterSize - 2; + + dx = node2.x - node1.x; + dy = node2.y - node1.y; + distance = Math.sqrt(dx * dx + dy * dy); + + minimumDistance = (combinedClusterSize == 0) ? nodeDistance : (nodeDistance * (1 + combinedClusterSize * this.constants.clustering.distanceAmplification)); + var a = a_base / minimumDistance; + if (distance < 2*minimumDistance) { + if (distance < 0.5*minimumDistance) { + repulsingForce = 1.0; + } + else { + repulsingForce = a * distance + b; // linear approx of 1 / (1 + Math.exp((distance / minimumDistance - 1) * steepness)) + } + + // amplify the repulsion for clusters. + repulsingForce *= (combinedClusterSize == 0) ? 1 : 1 + combinedClusterSize * this.constants.clustering.forceAmplification; + repulsingForce = repulsingForce/distance; + + fx = dx * repulsingForce; + fy = dy * repulsingForce; + + node1.fx -= fx; + node1.fy -= fy; + node2.fx += fx; + node2.fy += fy; + } + } + } + } +} +var HierarchicalLayoutMixin = { + + + /** + * This is the main function to layout the nodes in a hierarchical way. + * It checks if the node details are supplied correctly + * + * @private + */ + _setupHierarchicalLayout : function() { + if (this.constants.hierarchicalLayout.enabled == true) { + + // get the size of the largest hubs and check if the user has defined a level for a node. + var hubsize = 0; + var node, nodeId; + var definedLevel = false; + var undefinedLevel = false; + + for (nodeId in this.nodes) { + if (this.nodes.hasOwnProperty(nodeId)) { + node = this.nodes[nodeId]; + if (node.level != -1) { + definedLevel = true; + } + else { + undefinedLevel = true; + } + if (hubsize < node.edges.length) { + hubsize = node.edges.length; + } + } + } + + // if the user defined some levels but not all, alert and run without hierarchical layout + if (undefinedLevel == true && definedLevel == true) { + alert("To use the hierarchical layout, nodes require either no predefined levels or levels have to be defined for all nodes.") + this.zoomToFit(true,this.constants.clustering.enabled); + if (!this.constants.clustering.enabled) { + this.start(); + } + } + else { + // setup the system to use hierarchical method. + this._changeConstants(); + + // define levels if undefined by the users. Based on hubsize + if (undefinedLevel == true) { + this._determineLevels(hubsize); + } + // check the distribution of the nodes per level. + var distribution = this._getDistribution(); + + // place the nodes on the canvas. This also stablilizes the system. + this._placeNodesByHierarchy(distribution); + + // start the simulation. + this.start(); + } + } + }, + + + /** + * This function places the nodes on the canvas based on the hierarchial distribution. + * + * @param {Object} distribution | obtained by the function this._getDistribution() + * @private + */ + _placeNodesByHierarchy : function(distribution) { + var nodeId, node; + + // start placing all the level 0 nodes first. Then recursively position their branches. + for (nodeId in distribution[0].nodes) { + if (distribution[0].nodes.hasOwnProperty(nodeId)) { + node = distribution[0].nodes[nodeId]; + if (node.xFixed) { + node.x = distribution[0].minPos; + distribution[0].minPos += distribution[0].nodeSpacing; + node.xFixed = false; + } + this._placeBranchNodes(node.edges,node.id,distribution,node.level); + } + } + + // give the nodes a defined width so the zoomToFit can be used. This size is arbitrary. + for (nodeId in this.nodes) { + if (this.nodes.hasOwnProperty(nodeId)) { + node = this.nodes[nodeId]; + node.width = 100; + node.height = 100; + } + } + + // stabilize the system after positioning. This function calls zoomToFit. + this._doStabilize(); + + // reset the arbitrary width and height we gave the nodes. + for (nodeId in this.nodes) { + if (this.nodes.hasOwnProperty(nodeId)) { + this.nodes[nodeId]._reset(); + } + } + }, + + + /** + * This function get the distribution of levels based on hubsize + * + * @returns {Object} + * @private + */ + _getDistribution : function() { + var distribution = {}; + var nodeId, node; + + // we fix Y because the hierarchy is vertical, we fix X so we do not give a node an x position for a second time. + // the fix of X is removed after the x value has been set. + for (nodeId in this.nodes) { + if (this.nodes.hasOwnProperty(nodeId)) { + node = this.nodes[nodeId]; + node.xFixed = true; + node.yFixed = true; + node.y = this.constants.hierarchicalLayout.levelSeparation*node.level; + if (!distribution.hasOwnProperty(node.level)) { + distribution[node.level] = {amount: 0, nodes: {}, minPos:0, nodeSpacing:0}; + } + distribution[node.level].amount += 1; + distribution[node.level].nodes[node.id] = node; + } + } + + // determine the largest amount of nodes of all levels + var maxCount = 0; + for (var level in distribution) { + if (distribution.hasOwnProperty(level)) { + if (maxCount < distribution[level].amount) { + maxCount = distribution[level].amount; + } + } + } + + // set the initial position and spacing of each nodes accordingly + for (var level in distribution) { + if (distribution.hasOwnProperty(level)) { + distribution[level].nodeSpacing = (maxCount + 1) * this.constants.hierarchicalLayout.nodeSpacing; + distribution[level].nodeSpacing /= (distribution[level].amount + 1); + distribution[level].minPos = distribution[level].nodeSpacing - (0.5 * (distribution[level].amount + 1) * distribution[level].nodeSpacing); + } + } + + return distribution; + }, + + + /** + * this function allocates nodes in levels based on the recursive branching from the largest hubs. + * + * @param hubsize + * @private + */ + _determineLevels : function(hubsize) { + var nodeId, node; + + // determine hubs + for (nodeId in this.nodes) { + if (this.nodes.hasOwnProperty(nodeId)) { + node = this.nodes[nodeId]; + if (node.edges.length == hubsize) { + node.level = 0; + } + } + } + + // branch from hubs + for (nodeId in this.nodes) { + if (this.nodes.hasOwnProperty(nodeId)) { + node = this.nodes[nodeId]; + if (node.level == 0) { + this._setLevel(1,node.edges,node.id); + } + } + } + }, + + + /** + * Since hierarchical layout does not support: + * - smooth curves (based on the physics), + * - clustering (based on dynamic node counts) + * + * We disable both features so there will be no problems. + * + * @private + */ + _changeConstants : function() { + this.constants.clustering.enabled = false; + this.constants.physics.barnesHut.enabled = false; + this.constants.physics.hierarchicalRepulsion.enabled = true; + this._loadSelectedForceSolver(); + this.constants.smoothCurves = false; + this._configureSmoothCurves(); + }, + + + /** + * This is a recursively called function to enumerate the branches from the largest hubs and place the nodes + * on a X position that ensures there will be no overlap. + * + * @param edges + * @param parentId + * @param distribution + * @param parentLevel + * @private + */ + _placeBranchNodes : function(edges, parentId, distribution, parentLevel) { + for (var i = 0; i < edges.length; i++) { + var childNode = null; + if (edges[i].toId == parentId) { + childNode = edges[i].from; + } + else { + childNode = edges[i].to; + } + + // if a node is conneceted to another node on the same level (or higher (means lower level))!, this is not handled here. + if (childNode.xFixed && childNode.level > parentLevel) { + childNode.xFixed = false; + childNode.x = distribution[childNode.level].minPos; + distribution[childNode.level].minPos += distribution[childNode.level].nodeSpacing; + if (childNode.edges.length > 1) { + this._placeBranchNodes(childNode.edges,childNode.id,distribution,childNode.level); + } + } + } + }, + + + /** + * this function is called recursively to enumerate the barnches of the largest hubs and give each node a level. + * + * @param level + * @param edges + * @param parentId + * @private + */ + _setLevel : function(level, edges, parentId) { + for (var i = 0; i < edges.length; i++) { + var childNode = null; + if (edges[i].toId == parentId) { + childNode = edges[i].from; + } + else { + childNode = edges[i].to; + } + if (childNode.level == -1 || childNode.level > level) { + childNode.level = level; + if (edges.length > 1) { + this._setLevel(level+1, childNode.edges, childNode.id); + } + } + } + } +}; +/** + * Created by Alex on 2/4/14. + */ + +var manipulationMixin = { + + /** + * clears the toolbar div element of children + * + * @private + */ + _clearManipulatorBar : function() { + while (this.manipulationDiv.hasChildNodes()) { + this.manipulationDiv.removeChild(this.manipulationDiv.firstChild); + } + }, + + /** + * Manipulation UI temporarily overloads certain functions to extend or replace them. To be able to restore + * these functions to their original functionality, we saved them in this.cachedFunctions. + * This function restores these functions to their original function. + * + * @private + */ + _restoreOverloadedFunctions : function() { + for (var functionName in this.cachedFunctions) { + if (this.cachedFunctions.hasOwnProperty(functionName)) { + this[functionName] = this.cachedFunctions[functionName]; + } + } + }, + + /** + * Enable or disable edit-mode. + * + * @private + */ + _toggleEditMode : function() { + this.editMode = !this.editMode; + var toolbar = document.getElementById("graph-manipulationDiv"); + var closeDiv = document.getElementById("graph-manipulation-closeDiv"); + var editModeDiv = document.getElementById("graph-manipulation-editMode"); + if (this.editMode == true) { + toolbar.style.display="block"; + closeDiv.style.display="block"; + editModeDiv.style.display="none"; + closeDiv.onclick = this._toggleEditMode.bind(this); + } + else { + toolbar.style.display="none"; + closeDiv.style.display="none"; + editModeDiv.style.display="block"; + closeDiv.onclick = null; + } + this._createManipulatorBar() + }, + + /** + * main function, creates the main toolbar. Removes functions bound to the select event. Binds all the buttons of the toolbar. + * + * @private + */ + _createManipulatorBar : function() { + // remove bound functions + this.off('select', this.boundFunction); + + // restore overloaded functions + this._restoreOverloadedFunctions(); + + // resume calculation + this.freezeSimulation = false; + + // reset global variables + this.blockConnectingEdgeSelection = false; + this.forceAppendSelection = false + + if (this.editMode == true) { + while (this.manipulationDiv.hasChildNodes()) { + this.manipulationDiv.removeChild(this.manipulationDiv.firstChild); + } + // add the icons to the manipulator div + this.manipulationDiv.innerHTML = "" + + "" + + "Add Node" + + "

" + + "" + + "Add Link"; + if (this._getSelectedNodeCount() == 1 && this.triggerFunctions.edit) { + this.manipulationDiv.innerHTML += "" + + "
" + + "" + + "Edit Node"; + } + if (this._selectionIsEmpty() == false) { + this.manipulationDiv.innerHTML += "" + + "
" + + "" + + "Delete selected"; + } + + + // bind the icons + var addNodeButton = document.getElementById("graph-manipulate-addNode"); + addNodeButton.onclick = this._createAddNodeToolbar.bind(this); + var addEdgeButton = document.getElementById("graph-manipulate-connectNode"); + addEdgeButton.onclick = this._createAddEdgeToolbar.bind(this); + if (this._getSelectedNodeCount() == 1 && this.triggerFunctions.edit) { + var editButton = document.getElementById("graph-manipulate-editNode"); + editButton.onclick = this._editNode.bind(this); + } + if (this._selectionIsEmpty() == false) { + var deleteButton = document.getElementById("graph-manipulate-delete"); + deleteButton.onclick = this._deleteSelected.bind(this); + } + var closeDiv = document.getElementById("graph-manipulation-closeDiv"); + closeDiv.onclick = this._toggleEditMode.bind(this); + + this.boundFunction = this._createManipulatorBar.bind(this); + this.on('select', this.boundFunction); + } + else { + this.editModeDiv.innerHTML = "" + + "" + + "Edit" + var editModeButton = document.getElementById("graph-manipulate-editModeButton"); + editModeButton.onclick = this._toggleEditMode.bind(this); + } + }, + + + + /** + * Create the toolbar for adding Nodes + * + * @private + */ + _createAddNodeToolbar : function() { + // clear the toolbar + this._clearManipulatorBar(); + this.off('select', this.boundFunction); + + // create the toolbar contents + this.manipulationDiv.innerHTML = "" + + "" + + "Back" + + "
" + + "" + + "Click in an empty space to place a new node"; + + // bind the icon + var backButton = document.getElementById("graph-manipulate-back"); + backButton.onclick = this._createManipulatorBar.bind(this); + + // we use the boundFunction so we can reference it when we unbind it from the "select" event. + this.boundFunction = this._addNode.bind(this); + this.on('select', this.boundFunction); + }, + + + /** + * create the toolbar to connect nodes + * + * @private + */ + _createAddEdgeToolbar : function() { + // clear the toolbar + this._clearManipulatorBar(); + this._unselectAll(true); + this.freezeSimulation = true; + + this.off('select', this.boundFunction); + + this._unselectAll(); + this.forceAppendSelection = false; + this.blockConnectingEdgeSelection = true; + + this.manipulationDiv.innerHTML = "" + + "" + + "Back" + + "
" + + "" + + "Click on a node and drag the edge to another node to connect them."; + + // bind the icon + var backButton = document.getElementById("graph-manipulate-back"); + backButton.onclick = this._createManipulatorBar.bind(this); + + // we use the boundFunction so we can reference it when we unbind it from the "select" event. + this.boundFunction = this._handleConnect.bind(this); + this.on('select', this.boundFunction); + + // temporarily overload functions + this.cachedFunctions["_handleTouch"] = this._handleTouch; + this.cachedFunctions["_handleOnRelease"] = this._handleOnRelease; + this._handleTouch = this._handleConnect; + this._handleOnRelease = this._finishConnect; + + // redraw to show the unselect + this._redraw(); + + }, + + + /** + * the function bound to the selection event. It checks if you want to connect a cluster and changes the description + * to walk the user through the process. + * + * @private + */ + _handleConnect : function(pointer) { + if (this._getSelectedNodeCount() == 0) { + var node = this._getNodeAt(pointer); + if (node != null) { + if (node.clusterSize > 1) { + alert("Cannot create edges to a cluster.") + } + else { + this._selectObject(node,false); + // create a node the temporary line can look at + this.sectors['support']['nodes']['targetNode'] = new Node({id:'targetNode'},{},{},this.constants); + this.sectors['support']['nodes']['targetNode'].x = node.x; + this.sectors['support']['nodes']['targetNode'].y = node.y; + this.sectors['support']['nodes']['targetViaNode'] = new Node({id:'targetViaNode'},{},{},this.constants); + this.sectors['support']['nodes']['targetViaNode'].x = node.x; + this.sectors['support']['nodes']['targetViaNode'].y = node.y; + this.sectors['support']['nodes']['targetViaNode'].parentEdgeId = "connectionEdge"; + + // create a temporary edge + this.edges['connectionEdge'] = new Edge({id:"connectionEdge",from:node.id,to:this.sectors['support']['nodes']['targetNode'].id}, this, this.constants); + this.edges['connectionEdge'].from = node; + this.edges['connectionEdge'].connected = true; + this.edges['connectionEdge'].smooth = true; + this.edges['connectionEdge'].selected = true; + this.edges['connectionEdge'].to = this.sectors['support']['nodes']['targetNode']; + this.edges['connectionEdge'].via = this.sectors['support']['nodes']['targetViaNode']; + + this.cachedFunctions["_handleOnDrag"] = this._handleOnDrag; + this._handleOnDrag = function(event) { + var pointer = this._getPointer(event.gesture.center); + this.sectors['support']['nodes']['targetNode'].x = this._canvasToX(pointer.x); + this.sectors['support']['nodes']['targetNode'].y = this._canvasToY(pointer.y); + this.sectors['support']['nodes']['targetViaNode'].x = 0.5 * (this._canvasToX(pointer.x) + this.edges['connectionEdge'].from.x); + this.sectors['support']['nodes']['targetViaNode'].y = this._canvasToY(pointer.y); + }; + + this.moving = true; + this.start(); + } + } + } + }, + + _finishConnect : function(pointer) { + if (this._getSelectedNodeCount() == 1) { + + // restore the drag function + this._handleOnDrag = this.cachedFunctions["_handleOnDrag"]; + delete this.cachedFunctions["_handleOnDrag"]; + + // remember the edge id + var connectFromId = this.edges['connectionEdge'].fromId; + + // remove the temporary nodes and edge + delete this.edges['connectionEdge'] + delete this.sectors['support']['nodes']['targetNode']; + delete this.sectors['support']['nodes']['targetViaNode']; + + var node = this._getNodeAt(pointer); + if (node != null) { + if (node.clusterSize > 1) { + alert("Cannot create edges to a cluster.") + } + else { + this._createEdge(connectFromId,node.id); + this._createManipulatorBar(); + } + } + this._unselectAll(); + } + }, + + + /** + * Adds a node on the specified location + * + * @param {Object} pointer + */ + _addNode : function() { + if (this._selectionIsEmpty() && this.editMode == true) { + var positionObject = this._pointerToPositionObject(this.pointerPosition); + var defaultData = {id:util.randomUUID(),x:positionObject.left,y:positionObject.top,label:"new",allowedToMove:true}; + if (this.triggerFunctions.add) { + if (this.triggerFunctions.add.length == 2) { + var me = this; + this.triggerFunctions.add(defaultData, function(finalizedData) { + me.createNodeOnClick = true; + me.nodesData.add(finalizedData); + me.createNodeOnClick = false; + me._createManipulatorBar(); + me.moving = true; + me.start(); + }); + } + else { + alert("The function for add does not support two arguments (data,callback)."); + this._createManipulatorBar(); + this.moving = true; + this.start(); + } + } + else { + this.createNodeOnClick = true; + this.nodesData.add(defaultData); + this.createNodeOnClick = false; + this._createManipulatorBar(); + this.moving = true; + this.start(); + } + } + }, + + + /** + * connect two nodes with a new edge. + * + * @private + */ + _createEdge : function(sourceNodeId,targetNodeId) { + if (this.editMode == true) { + var defaultData = {from:sourceNodeId, to:targetNodeId}; + if (this.triggerFunctions.connect) { + if (this.triggerFunctions.connect.length == 2) { + var me = this; + this.triggerFunctions.connect(defaultData, function(finalizedData) { + me.edgesData.add(finalizedData) + me.moving = true; + me.start(); + }); + } + else { + alert("The function for connect does not support two arguments (data,callback)."); + this.moving = true; + this.start(); + } + } + else { + this.edgesData.add(defaultData) + this.moving = true; + this.start(); + } + } + }, + + + /** + * Create the toolbar to edit the selected node. The label and the color can be changed. Other colors are derived from the chosen color. + * + * @private + */ + _editNode : function() { + if (this.triggerFunctions.edit && this.editMode == true) { + var node = this._getSelectedNode(); + var data = {id:node.id, + label: node.label, + group: node.group, + shape: node.shape, + color: { + background:node.color.background, + border:node.color.border, + highlight: { + background:node.color.highlight.background, + border:node.color.highlight.border + } + }}; + if (this.triggerFunctions.edit.length == 2) { + var me = this; + this.triggerFunctions.edit(data, function (finalizedData) { + me.nodesData.update(finalizedData); + me._createManipulatorBar(); + me.moving = true; + me.start(); + }); + } + else { + alert("The function for edit does not support two arguments (data, callback).") + } + } + else { + alert("No edit function has been bound to this button.") + } + }, + + + /** + * delete everything in the selection + * + * @private + */ + _deleteSelected : function() { + if (!this._selectionIsEmpty() && this.editMode == true) { + if (!this._clusterInSelection()) { + var selectedNodes = this.getSelectedNodes(); + var selectedEdges = this.getSelectedEdges(); + if (this.triggerFunctions.delete) { + var me = this; + var data = {nodes: selectedNodes, edges: selectedEdges}; + if (this.triggerFunctions.delete.length = 2) { + this.triggerFunctions.delete(data, function (finalizedData) { + me.edgesData.remove(finalizedData.edges); + me.nodesData.remove(finalizedData.nodes); + this._unselectAll(); + me.moving = true; + me.start(); + }); + } + else { + alert("The function for edit does not support two arguments (data, callback).") + } + } + else { + this.edgesData.remove(selectedEdges); + this.nodesData.remove(selectedNodes); + this._unselectAll(); + this.moving = true; + this.start(); + } + } + else { + alert("Clusters cannot be deleted."); + } + } + } +}; +/** + * Creation of the SectorMixin var. + * + * This contains all the functions the Graph object can use to employ the sector system. + * The sector system is always used by Graph, though the benefits only apply to the use of clustering. + * If clustering is not used, there is no overhead except for a duplicate object with references to nodes and edges. + * + * Alex de Mulder + * 21-01-2013 + */ +var SectorMixin = { + + /** + * This function is only called by the setData function of the Graph object. + * This loads the global references into the active sector. This initializes the sector. + * + * @private + */ + _putDataInSector : function() { + this.sectors["active"][this._sector()].nodes = this.nodes; + this.sectors["active"][this._sector()].edges = this.edges; + this.sectors["active"][this._sector()].nodeIndices = this.nodeIndices; + }, + + + /** + * /** + * This function sets the global references to nodes, edges and nodeIndices back to + * those of the supplied (active) sector. If a type is defined, do the specific type + * + * @param {String} sectorId + * @param {String} [sectorType] | "active" or "frozen" + * @private + */ + _switchToSector : function(sectorId, sectorType) { + if (sectorType === undefined || sectorType == "active") { + this._switchToActiveSector(sectorId); + } + else { + this._switchToFrozenSector(sectorId); + } + }, + + + /** + * This function sets the global references to nodes, edges and nodeIndices back to + * those of the supplied active sector. + * + * @param sectorId + * @private + */ + _switchToActiveSector : function(sectorId) { + this.nodeIndices = this.sectors["active"][sectorId]["nodeIndices"]; + this.nodes = this.sectors["active"][sectorId]["nodes"]; + this.edges = this.sectors["active"][sectorId]["edges"]; + }, + + + /** + * This function sets the global references to nodes, edges and nodeIndices back to + * those of the supplied active sector. + * + * @param sectorId + * @private + */ + _switchToSupportSector : function() { + this.nodeIndices = this.sectors["support"]["nodeIndices"]; + this.nodes = this.sectors["support"]["nodes"]; + this.edges = this.sectors["support"]["edges"]; + }, + + + /** + * This function sets the global references to nodes, edges and nodeIndices back to + * those of the supplied frozen sector. + * + * @param sectorId + * @private + */ + _switchToFrozenSector : function(sectorId) { + this.nodeIndices = this.sectors["frozen"][sectorId]["nodeIndices"]; + this.nodes = this.sectors["frozen"][sectorId]["nodes"]; + this.edges = this.sectors["frozen"][sectorId]["edges"]; + }, + + + /** + * This function sets the global references to nodes, edges and nodeIndices back to + * those of the currently active sector. + * + * @private + */ + _loadLatestSector : function() { + this._switchToSector(this._sector()); + }, + + + /** + * This function returns the currently active sector Id + * + * @returns {String} + * @private + */ + _sector : function() { + return this.activeSector[this.activeSector.length-1]; + }, + + + /** + * This function returns the previously active sector Id + * + * @returns {String} + * @private + */ + _previousSector : function() { + if (this.activeSector.length > 1) { + return this.activeSector[this.activeSector.length-2]; + } + else { + throw new TypeError('there are not enough sectors in the this.activeSector array.'); + } + }, + + + /** + * We add the active sector at the end of the this.activeSector array + * This ensures it is the currently active sector returned by _sector() and it reaches the top + * of the activeSector stack. When we reverse our steps we move from the end to the beginning of this stack. + * + * @param newId + * @private + */ + _setActiveSector : function(newId) { + this.activeSector.push(newId); + }, + + + /** + * We remove the currently active sector id from the active sector stack. This happens when + * we reactivate the previously active sector + * + * @private + */ + _forgetLastSector : function() { + this.activeSector.pop(); + }, + + + /** + * This function creates a new active sector with the supplied newId. This newId + * is the expanding node id. + * + * @param {String} newId | Id of the new active sector + * @private + */ + _createNewSector : function(newId) { + // create the new sector + this.sectors["active"][newId] = {"nodes":{}, + "edges":{}, + "nodeIndices":[], + "formationScale": this.scale, + "drawingNode": undefined}; + + // create the new sector render node. This gives visual feedback that you are in a new sector. + this.sectors["active"][newId]['drawingNode'] = new Node( + {id:newId, + color: { + background: "#eaefef", + border: "495c5e" + } + },{},{},this.constants); + this.sectors["active"][newId]['drawingNode'].clusterSize = 2; + }, + + + /** + * This function removes the currently active sector. This is called when we create a new + * active sector. + * + * @param {String} sectorId | Id of the active sector that will be removed + * @private + */ + _deleteActiveSector : function(sectorId) { + delete this.sectors["active"][sectorId]; + }, + + + /** + * This function removes the currently active sector. This is called when we reactivate + * the previously active sector. + * + * @param {String} sectorId | Id of the active sector that will be removed + * @private + */ + _deleteFrozenSector : function(sectorId) { + delete this.sectors["frozen"][sectorId]; + }, + + + /** + * Freezing an active sector means moving it from the "active" object to the "frozen" object. + * We copy the references, then delete the active entree. + * + * @param sectorId + * @private + */ + _freezeSector : function(sectorId) { + // we move the set references from the active to the frozen stack. + this.sectors["frozen"][sectorId] = this.sectors["active"][sectorId]; + + // we have moved the sector data into the frozen set, we now remove it from the active set + this._deleteActiveSector(sectorId); + }, + + + /** + * This is the reverse operation of _freezeSector. Activating means moving the sector from the "frozen" + * object to the "active" object. + * + * @param sectorId + * @private + */ + _activateSector : function(sectorId) { + // we move the set references from the frozen to the active stack. + this.sectors["active"][sectorId] = this.sectors["frozen"][sectorId]; + + // we have moved the sector data into the active set, we now remove it from the frozen stack + this._deleteFrozenSector(sectorId); + }, + + + /** + * This function merges the data from the currently active sector with a frozen sector. This is used + * in the process of reverting back to the previously active sector. + * The data that is placed in the frozen (the previously active) sector is the node that has been removed from it + * upon the creation of a new active sector. + * + * @param sectorId + * @private + */ + _mergeThisWithFrozen : function(sectorId) { + // copy all nodes + for (var nodeId in this.nodes) { + if (this.nodes.hasOwnProperty(nodeId)) { + this.sectors["frozen"][sectorId]["nodes"][nodeId] = this.nodes[nodeId]; + } + } + + // copy all edges (if not fully clustered, else there are no edges) + for (var edgeId in this.edges) { + if (this.edges.hasOwnProperty(edgeId)) { + this.sectors["frozen"][sectorId]["edges"][edgeId] = this.edges[edgeId]; + } + } + + // merge the nodeIndices + for (var i = 0; i < this.nodeIndices.length; i++) { + this.sectors["frozen"][sectorId]["nodeIndices"].push(this.nodeIndices[i]); + } + }, + + + /** + * This clusters the sector to one cluster. It was a single cluster before this process started so + * we revert to that state. The clusterToFit function with a maximum size of 1 node does this. + * + * @private + */ + _collapseThisToSingleCluster : function() { + this.clusterToFit(1,false); + }, + + + /** + * We create a new active sector from the node that we want to open. + * + * @param node + * @private + */ + _addSector : function(node) { + // this is the currently active sector + var sector = this._sector(); + +// // this should allow me to select nodes from a frozen set. +// if (this.sectors['active'][sector]["nodes"].hasOwnProperty(node.id)) { +// console.log("the node is part of the active sector"); +// } +// else { +// console.log("I dont know what the fuck happened!!"); +// } + + // when we switch to a new sector, we remove the node that will be expanded from the current nodes list. + delete this.nodes[node.id]; + + var unqiueIdentifier = util.randomUUID(); + + // we fully freeze the currently active sector + this._freezeSector(sector); + + // we create a new active sector. This sector has the Id of the node to ensure uniqueness + this._createNewSector(unqiueIdentifier); + + // we add the active sector to the sectors array to be able to revert these steps later on + this._setActiveSector(unqiueIdentifier); + + // we redirect the global references to the new sector's references. this._sector() now returns unqiueIdentifier + this._switchToSector(this._sector()); + + // finally we add the node we removed from our previous active sector to the new active sector + this.nodes[node.id] = node; + }, + + + /** + * We close the sector that is currently open and revert back to the one before. + * If the active sector is the "default" sector, nothing happens. + * + * @private + */ + _collapseSector : function() { + // the currently active sector + var sector = this._sector(); + + // we cannot collapse the default sector + if (sector != "default") { + if ((this.nodeIndices.length == 1) || + (this.sectors["active"][sector]["drawingNode"].width*this.scale < this.constants.clustering.screenSizeThreshold * this.frame.canvas.clientWidth) || + (this.sectors["active"][sector]["drawingNode"].height*this.scale < this.constants.clustering.screenSizeThreshold * this.frame.canvas.clientHeight)) { + var previousSector = this._previousSector(); + + // we collapse the sector back to a single cluster + this._collapseThisToSingleCluster(); + + // we move the remaining nodes, edges and nodeIndices to the previous sector. + // This previous sector is the one we will reactivate + this._mergeThisWithFrozen(previousSector); + + // the previously active (frozen) sector now has all the data from the currently active sector. + // we can now delete the active sector. + this._deleteActiveSector(sector); + + // we activate the previously active (and currently frozen) sector. + this._activateSector(previousSector); + + // we load the references from the newly active sector into the global references + this._switchToSector(previousSector); + + // we forget the previously active sector because we reverted to the one before + this._forgetLastSector(); + + // finally, we update the node index list. + this._updateNodeIndexList(); + + // we refresh the list with calulation nodes and calculation node indices. + this._updateCalculationNodes(); + } + } + }, + + + /** + * This runs a function in all active sectors. This is used in _redraw() and the _initializeForceCalculation(). + * + * @param {String} runFunction | This is the NAME of a function we want to call in all active sectors + * | we dont pass the function itself because then the "this" is the window object + * | instead of the Graph object + * @param {*} [argument] | Optional: arguments to pass to the runFunction + * @private + */ + _doInAllActiveSectors : function(runFunction,argument) { + if (argument === undefined) { + for (var sector in this.sectors["active"]) { + if (this.sectors["active"].hasOwnProperty(sector)) { + // switch the global references to those of this sector + this._switchToActiveSector(sector); + this[runFunction](); + } + } + } + else { + for (var sector in this.sectors["active"]) { + if (this.sectors["active"].hasOwnProperty(sector)) { + // switch the global references to those of this sector + this._switchToActiveSector(sector); + var args = Array.prototype.splice.call(arguments, 1); + if (args.length > 1) { + this[runFunction](args[0],args[1]); + } + else { + this[runFunction](argument); + } + } + } + } + // we revert the global references back to our active sector + this._loadLatestSector(); + }, + + + /** + * This runs a function in all active sectors. This is used in _redraw() and the _initializeForceCalculation(). + * + * @param {String} runFunction | This is the NAME of a function we want to call in all active sectors + * | we dont pass the function itself because then the "this" is the window object + * | instead of the Graph object + * @param {*} [argument] | Optional: arguments to pass to the runFunction + * @private + */ + _doInSupportSector : function(runFunction,argument) { + if (argument === undefined) { + this._switchToSupportSector(); + this[runFunction](); + } + else { + this._switchToSupportSector(); + var args = Array.prototype.splice.call(arguments, 1); + if (args.length > 1) { + this[runFunction](args[0],args[1]); + } + else { + this[runFunction](argument); + } + } + // we revert the global references back to our active sector + this._loadLatestSector(); + }, + + + /** + * This runs a function in all frozen sectors. This is used in the _redraw(). + * + * @param {String} runFunction | This is the NAME of a function we want to call in all active sectors + * | we don't pass the function itself because then the "this" is the window object + * | instead of the Graph object + * @param {*} [argument] | Optional: arguments to pass to the runFunction + * @private + */ + _doInAllFrozenSectors : function(runFunction,argument) { + if (argument === undefined) { + for (var sector in this.sectors["frozen"]) { + if (this.sectors["frozen"].hasOwnProperty(sector)) { + // switch the global references to those of this sector + this._switchToFrozenSector(sector); + this[runFunction](); + } + } + } + else { + for (var sector in this.sectors["frozen"]) { + if (this.sectors["frozen"].hasOwnProperty(sector)) { + // switch the global references to those of this sector + this._switchToFrozenSector(sector); + var args = Array.prototype.splice.call(arguments, 1); + if (args.length > 1) { + this[runFunction](args[0],args[1]); + } + else { + this[runFunction](argument); + } + } + } + } + this._loadLatestSector(); + }, + + + /** + * This runs a function in all sectors. This is used in the _redraw(). + * + * @param {String} runFunction | This is the NAME of a function we want to call in all active sectors + * | we don't pass the function itself because then the "this" is the window object + * | instead of the Graph object + * @param {*} [argument] | Optional: arguments to pass to the runFunction + * @private + */ + _doInAllSectors : function(runFunction,argument) { + var args = Array.prototype.splice.call(arguments, 1); + if (argument === undefined) { + this._doInAllActiveSectors(runFunction); + this._doInAllFrozenSectors(runFunction); + } + else { + if (args.length > 1) { + this._doInAllActiveSectors(runFunction,args[0],args[1]); + this._doInAllFrozenSectors(runFunction,args[0],args[1]); + } + else { + this._doInAllActiveSectors(runFunction,argument); + this._doInAllFrozenSectors(runFunction,argument); + } + } + }, + + + /** + * This clears the nodeIndices list. We cannot use this.nodeIndices = [] because we would break the link with the + * active sector. Thus we clear the nodeIndices in the active sector, then reconnect the this.nodeIndices to it. + * + * @private + */ + _clearNodeIndexList : function() { + var sector = this._sector(); + this.sectors["active"][sector]["nodeIndices"] = []; + this.nodeIndices = this.sectors["active"][sector]["nodeIndices"]; + }, + + + /** + * Draw the encompassing sector node + * + * @param ctx + * @param sectorType + * @private + */ + _drawSectorNodes : function(ctx,sectorType) { + var minY = 1e9, maxY = -1e9, minX = 1e9, maxX = -1e9, node; + for (var sector in this.sectors[sectorType]) { + if (this.sectors[sectorType].hasOwnProperty(sector)) { + if (this.sectors[sectorType][sector]["drawingNode"] !== undefined) { + + this._switchToSector(sector,sectorType); + + minY = 1e9; maxY = -1e9; minX = 1e9; maxX = -1e9; + for (var nodeId in this.nodes) { + if (this.nodes.hasOwnProperty(nodeId)) { + node = this.nodes[nodeId]; + node.resize(ctx); + if (minX > node.x - 0.5 * node.width) {minX = node.x - 0.5 * node.width;} + if (maxX < node.x + 0.5 * node.width) {maxX = node.x + 0.5 * node.width;} + if (minY > node.y - 0.5 * node.height) {minY = node.y - 0.5 * node.height;} + if (maxY < node.y + 0.5 * node.height) {maxY = node.y + 0.5 * node.height;} + } + } + node = this.sectors[sectorType][sector]["drawingNode"]; + node.x = 0.5 * (maxX + minX); + node.y = 0.5 * (maxY + minY); + node.width = 2 * (node.x - minX); + node.height = 2 * (node.y - minY); + node.radius = Math.sqrt(Math.pow(0.5*node.width,2) + Math.pow(0.5*node.height,2)); + node.setScale(this.scale); + node._drawCircle(ctx); + } + } + } + }, + + _drawAllSectorNodes : function(ctx) { + this._drawSectorNodes(ctx,"frozen"); + this._drawSectorNodes(ctx,"active"); + this._loadLatestSector(); + } +}; +/** + * Creation of the ClusterMixin var. + * + * This contains all the functions the Graph object can use to employ clustering + * + * Alex de Mulder + * 21-01-2013 + */ +var ClusterMixin = { + + /** + * This is only called in the constructor of the graph object + * + */ + startWithClustering : function() { + // cluster if the data set is big + this.clusterToFit(this.constants.clustering.initialMaxNodes, true); + + // updates the lables after clustering + this.updateLabels(); + + // this is called here because if clusterin is disabled, the start and stabilize are called in + // the setData function. + if (this.stabilize) { + this._doStabilize(); + } + this.start(); + }, + + /** + * This function clusters until the initialMaxNodes has been reached + * + * @param {Number} maxNumberOfNodes + * @param {Boolean} reposition + */ + clusterToFit : function(maxNumberOfNodes, reposition) { + var numberOfNodes = this.nodeIndices.length; + + var maxLevels = 50; + var level = 0; + + // we first cluster the hubs, then we pull in the outliers, repeat + while (numberOfNodes > maxNumberOfNodes && level < maxLevels) { + if (level % 3 == 0) { + this.forceAggregateHubs(true); + this.normalizeClusterLevels(); + } + else { + this.increaseClusterLevel(); // this also includes a cluster normalization + } + + numberOfNodes = this.nodeIndices.length; + level += 1; + } + + // after the clustering we reposition the nodes to reduce the initial chaos + if (level > 0 && reposition == true) { + this.repositionNodes(); + } + this._updateCalculationNodes(); + }, + + /** + * This function can be called to open up a specific cluster. It is only called by + * It will unpack the cluster back one level. + * + * @param node | Node object: cluster to open. + */ + openCluster : function(node) { + var isMovingBeforeClustering = this.moving; + if (node.clusterSize > this.constants.clustering.sectorThreshold && this._nodeInActiveArea(node) && + !(this._sector() == "default" && this.nodeIndices.length == 1)) { + // this loads a new sector, loads the nodes and edges and nodeIndices of it. + this._addSector(node); + var level = 0; + + // we decluster until we reach a decent number of nodes + while ((this.nodeIndices.length < this.constants.clustering.initialMaxNodes) && (level < 10)) { + this.decreaseClusterLevel(); + level += 1; + } + + } + else { + this._expandClusterNode(node,false,true); + + // update the index list, dynamic edges and labels + this._updateNodeIndexList(); + this._updateDynamicEdges(); + this._updateCalculationNodes(); + this.updateLabels(); + } + + // if the simulation was settled, we restart the simulation if a cluster has been formed or expanded + if (this.moving != isMovingBeforeClustering) { + this.start(); + } + }, + + + /** + * This calls the updateClustes with default arguments + */ + updateClustersDefault : function() { + if (this.constants.clustering.enabled == true) { + this.updateClusters(0,false,false); + } + }, + + + /** + * This function can be called to increase the cluster level. This means that the nodes with only one edge connection will + * be clustered with their connected node. This can be repeated as many times as needed. + * This can be called externally (by a keybind for instance) to reduce the complexity of big datasets. + */ + increaseClusterLevel : function() { + this.updateClusters(-1,false,true); + }, + + + /** + * This function can be called to decrease the cluster level. This means that the nodes with only one edge connection will + * be unpacked if they are a cluster. This can be repeated as many times as needed. + * This can be called externally (by a key-bind for instance) to look into clusters without zooming. + */ + decreaseClusterLevel : function() { + this.updateClusters(1,false,true); + }, + + + /** + * This is the main clustering function. It clusters and declusters on zoom or forced + * This function clusters on zoom, it can be called with a predefined zoom direction + * If out, check if we can form clusters, if in, check if we can open clusters. + * This function is only called from _zoom() + * + * @param {Number} zoomDirection | -1 / 0 / +1 for zoomOut / determineByZoom / zoomIn + * @param {Boolean} recursive | enabled or disable recursive calling of the opening of clusters + * @param {Boolean} force | enabled or disable forcing + * + */ + updateClusters : function(zoomDirection,recursive,force,doNotStart) { + var isMovingBeforeClustering = this.moving; + var amountOfNodes = this.nodeIndices.length; + + // on zoom out collapse the sector if the scale is at the level the sector was made + if (this.previousScale > this.scale && zoomDirection == 0) { + this._collapseSector(); + } + + // check if we zoom in or out + if (this.previousScale > this.scale || zoomDirection == -1) { // zoom out + // forming clusters when forced pulls outliers in. When not forced, the edge length of the + // outer nodes determines if it is being clustered + this._formClusters(force); + } + else if (this.previousScale < this.scale || zoomDirection == 1) { // zoom in + if (force == true) { + // _openClusters checks for each node if the formationScale of the cluster is smaller than + // the current scale and if so, declusters. When forced, all clusters are reduced by one step + this._openClusters(recursive,force); + } + else { + // if a cluster takes up a set percentage of the active window + this._openClustersBySize(); + } + } + this._updateNodeIndexList(); + + // if a cluster was NOT formed and the user zoomed out, we try clustering by hubs + if (this.nodeIndices.length == amountOfNodes && (this.previousScale > this.scale || zoomDirection == -1)) { + this._aggregateHubs(force); + this._updateNodeIndexList(); + } + + // we now reduce chains. + if (this.previousScale > this.scale || zoomDirection == -1) { // zoom out + this.handleChains(); + this._updateNodeIndexList(); + } + + this.previousScale = this.scale; + + // rest of the update the index list, dynamic edges and labels + this._updateDynamicEdges(); + this.updateLabels(); + + // if a cluster was formed, we increase the clusterSession + if (this.nodeIndices.length < amountOfNodes) { // this means a clustering operation has taken place + this.clusterSession += 1; + // if clusters have been made, we normalize the cluster level + this.normalizeClusterLevels(); + } + + if (doNotStart == false || doNotStart === undefined) { + // if the simulation was settled, we restart the simulation if a cluster has been formed or expanded + if (this.moving != isMovingBeforeClustering) { + this.start(); + } + } + + this._updateCalculationNodes(); + }, + + /** + * This function handles the chains. It is called on every updateClusters(). + */ + handleChains : function() { + // after clustering we check how many chains there are + var chainPercentage = this._getChainFraction(); + if (chainPercentage > this.constants.clustering.chainThreshold) { + this._reduceAmountOfChains(1 - this.constants.clustering.chainThreshold / chainPercentage) + + } + }, + + /** + * this functions starts clustering by hubs + * The minimum hub threshold is set globally + * + * @private + */ + _aggregateHubs : function(force) { + this._getHubSize(); + this._formClustersByHub(force,false); + }, + + + /** + * This function is fired by keypress. It forces hubs to form. + * + */ + forceAggregateHubs : function(doNotStart) { + var isMovingBeforeClustering = this.moving; + var amountOfNodes = this.nodeIndices.length; + + this._aggregateHubs(true); + + // update the index list, dynamic edges and labels + this._updateNodeIndexList(); + this._updateDynamicEdges(); + this.updateLabels(); + + // if a cluster was formed, we increase the clusterSession + if (this.nodeIndices.length != amountOfNodes) { + this.clusterSession += 1; + } + + if (doNotStart == false || doNotStart === undefined) { + // if the simulation was settled, we restart the simulation if a cluster has been formed or expanded + if (this.moving != isMovingBeforeClustering) { + this.start(); + } + } + }, + + /** + * If a cluster takes up more than a set percentage of the screen, open the cluster + * + * @private + */ + _openClustersBySize : function() { + for (var nodeId in this.nodes) { + if (this.nodes.hasOwnProperty(nodeId)) { + var node = this.nodes[nodeId]; + if (node.inView() == true) { + if ((node.width*this.scale > this.constants.clustering.screenSizeThreshold * this.frame.canvas.clientWidth) || + (node.height*this.scale > this.constants.clustering.screenSizeThreshold * this.frame.canvas.clientHeight)) { + this.openCluster(node); + } + } + } + } + }, + + + /** + * This function loops over all nodes in the nodeIndices list. For each node it checks if it is a cluster and if it + * has to be opened based on the current zoom level. + * + * @private + */ + _openClusters : function(recursive,force) { + for (var i = 0; i < this.nodeIndices.length; i++) { + var node = this.nodes[this.nodeIndices[i]]; + this._expandClusterNode(node,recursive,force); + this._updateCalculationNodes(); + } + }, + + /** + * This function checks if a node has to be opened. This is done by checking the zoom level. + * If the node contains child nodes, this function is recursively called on the child nodes as well. + * This recursive behaviour is optional and can be set by the recursive argument. + * + * @param {Node} parentNode | to check for cluster and expand + * @param {Boolean} recursive | enabled or disable recursive calling + * @param {Boolean} force | enabled or disable forcing + * @param {Boolean} [openAll] | This will recursively force all nodes in the parent to be released + * @private + */ + _expandClusterNode : function(parentNode, recursive, force, openAll) { + // first check if node is a cluster + if (parentNode.clusterSize > 1) { + // this means that on a double tap event or a zoom event, the cluster fully unpacks if it is smaller than 20 + if (parentNode.clusterSize < this.constants.clustering.sectorThreshold) { + openAll = true; + } + recursive = openAll ? true : recursive; + + // if the last child has been added on a smaller scale than current scale decluster + if (parentNode.formationScale < this.scale || force == true) { + // we will check if any of the contained child nodes should be removed from the cluster + for (var containedNodeId in parentNode.containedNodes) { + if (parentNode.containedNodes.hasOwnProperty(containedNodeId)) { + var childNode = parentNode.containedNodes[containedNodeId]; + + // force expand will expand the largest cluster size clusters. Since we cluster from outside in, we assume that + // the largest cluster is the one that comes from outside + if (force == true) { + if (childNode.clusterSession == parentNode.clusterSessions[parentNode.clusterSessions.length-1] + || openAll) { + this._expelChildFromParent(parentNode,containedNodeId,recursive,force,openAll); + } + } + else { + if (this._nodeInActiveArea(parentNode)) { + this._expelChildFromParent(parentNode,containedNodeId,recursive,force,openAll); + } + } + } + } + } + } + }, + + /** + * ONLY CALLED FROM _expandClusterNode + * + * This function will expel a child_node from a parent_node. This is to de-cluster the node. This function will remove + * the child node from the parent contained_node object and put it back into the global nodes object. + * The same holds for the edge that was connected to the child node. It is moved back into the global edges object. + * + * @param {Node} parentNode | the parent node + * @param {String} containedNodeId | child_node id as it is contained in the containedNodes object of the parent node + * @param {Boolean} recursive | This will also check if the child needs to be expanded. + * With force and recursive both true, the entire cluster is unpacked + * @param {Boolean} force | This will disregard the zoom level and will expel this child from the parent + * @param {Boolean} openAll | This will recursively force all nodes in the parent to be released + * @private + */ + _expelChildFromParent : function(parentNode, containedNodeId, recursive, force, openAll) { + var childNode = parentNode.containedNodes[containedNodeId]; + + // if child node has been added on smaller scale than current, kick out + if (childNode.formationScale < this.scale || force == true) { + // unselect all selected items + this._unselectAll(); + + // put the child node back in the global nodes object + this.nodes[containedNodeId] = childNode; + + // release the contained edges from this childNode back into the global edges + this._releaseContainedEdges(parentNode,childNode); + + // reconnect rerouted edges to the childNode + this._connectEdgeBackToChild(parentNode,childNode); + + // validate all edges in dynamicEdges + this._validateEdges(parentNode); + + // undo the changes from the clustering operation on the parent node + parentNode.mass -= childNode.mass; + parentNode.clusterSize -= childNode.clusterSize; + parentNode.fontSize = Math.min(this.constants.clustering.maxFontSize, this.constants.nodes.fontSize + this.constants.clustering.fontSizeMultiplier*parentNode.clusterSize); + parentNode.dynamicEdgesLength = parentNode.dynamicEdges.length; + + // place the child node near the parent, not at the exact same location to avoid chaos in the system + childNode.x = parentNode.x + parentNode.growthIndicator * (0.5 - Math.random()); + childNode.y = parentNode.y + parentNode.growthIndicator * (0.5 - Math.random()); + + // remove node from the list + delete parentNode.containedNodes[containedNodeId]; + + // check if there are other childs with this clusterSession in the parent. + var othersPresent = false; + for (var childNodeId in parentNode.containedNodes) { + if (parentNode.containedNodes.hasOwnProperty(childNodeId)) { + if (parentNode.containedNodes[childNodeId].clusterSession == childNode.clusterSession) { + othersPresent = true; + break; + } + } + } + // if there are no others, remove the cluster session from the list + if (othersPresent == false) { + parentNode.clusterSessions.pop(); + } + + this._repositionBezierNodes(childNode); +// this._repositionBezierNodes(parentNode); + + // remove the clusterSession from the child node + childNode.clusterSession = 0; + + // recalculate the size of the node on the next time the node is rendered + parentNode.clearSizeCache(); + + // restart the simulation to reorganise all nodes + this.moving = true; + } + + // check if a further expansion step is possible if recursivity is enabled + if (recursive == true) { + this._expandClusterNode(childNode,recursive,force,openAll); + } + }, + + + /** + * position the bezier nodes at the center of the edges + * + * @param node + * @private + */ + _repositionBezierNodes : function(node) { + for (var i = 0; i < node.dynamicEdges.length; i++) { + node.dynamicEdges[i].positionBezierNode(); + } + }, + + + /** + * This function checks if any nodes at the end of their trees have edges below a threshold length + * This function is called only from updateClusters() + * forceLevelCollapse ignores the length of the edge and collapses one level + * This means that a node with only one edge will be clustered with its connected node + * + * @private + * @param {Boolean} force + */ + _formClusters : function(force) { + if (force == false) { + this._formClustersByZoom(); + } + else { + this._forceClustersByZoom(); + } + }, + + + /** + * This function handles the clustering by zooming out, this is based on a minimum edge distance + * + * @private + */ + _formClustersByZoom : function() { + var dx,dy,length, + minLength = this.constants.clustering.clusterEdgeThreshold/this.scale; + + // check if any edges are shorter than minLength and start the clustering + // the clustering favours the node with the larger mass + for (var edgeId in this.edges) { + if (this.edges.hasOwnProperty(edgeId)) { + var edge = this.edges[edgeId]; + if (edge.connected) { + if (edge.toId != edge.fromId) { + dx = (edge.to.x - edge.from.x); + dy = (edge.to.y - edge.from.y); + length = Math.sqrt(dx * dx + dy * dy); + + + if (length < minLength) { + // first check which node is larger + var parentNode = edge.from; + var childNode = edge.to; + if (edge.to.mass > edge.from.mass) { + parentNode = edge.to; + childNode = edge.from; + } + + if (childNode.dynamicEdgesLength == 1) { + this._addToCluster(parentNode,childNode,false); + } + else if (parentNode.dynamicEdgesLength == 1) { + this._addToCluster(childNode,parentNode,false); + } + } + } + } + } + } + }, + + /** + * This function forces the graph to cluster all nodes with only one connecting edge to their + * connected node. + * + * @private + */ + _forceClustersByZoom : function() { + for (var nodeId in this.nodes) { + // another node could have absorbed this child. + if (this.nodes.hasOwnProperty(nodeId)) { + var childNode = this.nodes[nodeId]; + + // the edges can be swallowed by another decrease + if (childNode.dynamicEdgesLength == 1 && childNode.dynamicEdges.length != 0) { + var edge = childNode.dynamicEdges[0]; + var parentNode = (edge.toId == childNode.id) ? this.nodes[edge.fromId] : this.nodes[edge.toId]; + + // group to the largest node + if (childNode.id != parentNode.id) { + if (parentNode.mass > childNode.mass) { + this._addToCluster(parentNode,childNode,true); + } + else { + this._addToCluster(childNode,parentNode,true); + } + } + } + } + } + }, + + + /** + * To keep the nodes of roughly equal size we normalize the cluster levels. + * This function clusters a node to its smallest connected neighbour. + * + * @param node + * @private + */ + _clusterToSmallestNeighbour : function(node) { + var smallestNeighbour = -1; + var smallestNeighbourNode = null; + for (var i = 0; i < node.dynamicEdges.length; i++) { + if (node.dynamicEdges[i] !== undefined) { + var neighbour = null; + if (node.dynamicEdges[i].fromId != node.id) { + neighbour = node.dynamicEdges[i].from; + } + else if (node.dynamicEdges[i].toId != node.id) { + neighbour = node.dynamicEdges[i].to; + } + + + if (neighbour != null && smallestNeighbour > neighbour.clusterSessions.length) { + smallestNeighbour = neighbour.clusterSessions.length; + smallestNeighbourNode = neighbour; + } + } + } + + if (neighbour != null && this.nodes[neighbour.id] !== undefined) { + this._addToCluster(neighbour, node, true); + } + }, + + + /** + * This function forms clusters from hubs, it loops over all nodes + * + * @param {Boolean} force | Disregard zoom level + * @param {Boolean} onlyEqual | This only clusters a hub with a specific number of edges + * @private + */ + _formClustersByHub : function(force, onlyEqual) { + // we loop over all nodes in the list + for (var nodeId in this.nodes) { + // we check if it is still available since it can be used by the clustering in this loop + if (this.nodes.hasOwnProperty(nodeId)) { + this._formClusterFromHub(this.nodes[nodeId],force,onlyEqual); + } + } + }, + + /** + * This function forms a cluster from a specific preselected hub node + * + * @param {Node} hubNode | the node we will cluster as a hub + * @param {Boolean} force | Disregard zoom level + * @param {Boolean} onlyEqual | This only clusters a hub with a specific number of edges + * @param {Number} [absorptionSizeOffset] | + * @private + */ + _formClusterFromHub : function(hubNode, force, onlyEqual, absorptionSizeOffset) { + if (absorptionSizeOffset === undefined) { + absorptionSizeOffset = 0; + } + // we decide if the node is a hub + if ((hubNode.dynamicEdgesLength >= this.hubThreshold && onlyEqual == false) || + (hubNode.dynamicEdgesLength == this.hubThreshold && onlyEqual == true)) { + // initialize variables + var dx,dy,length; + var minLength = this.constants.clustering.clusterEdgeThreshold/this.scale; + var allowCluster = false; + + // we create a list of edges because the dynamicEdges change over the course of this loop + var edgesIdarray = []; + var amountOfInitialEdges = hubNode.dynamicEdges.length; + for (var j = 0; j < amountOfInitialEdges; j++) { + edgesIdarray.push(hubNode.dynamicEdges[j].id); + } + + // if the hub clustering is not forces, we check if one of the edges connected + // to a cluster is small enough based on the constants.clustering.clusterEdgeThreshold + if (force == false) { + allowCluster = false; + for (j = 0; j < amountOfInitialEdges; j++) { + var edge = this.edges[edgesIdarray[j]]; + if (edge !== undefined) { + if (edge.connected) { + if (edge.toId != edge.fromId) { + dx = (edge.to.x - edge.from.x); + dy = (edge.to.y - edge.from.y); + length = Math.sqrt(dx * dx + dy * dy); + + if (length < minLength) { + allowCluster = true; + break; + } + } + } + } + } + } + + // start the clustering if allowed + if ((!force && allowCluster) || force) { + // we loop over all edges INITIALLY connected to this hub + for (j = 0; j < amountOfInitialEdges; j++) { + edge = this.edges[edgesIdarray[j]]; + // the edge can be clustered by this function in a previous loop + if (edge !== undefined) { + var childNode = this.nodes[(edge.fromId == hubNode.id) ? edge.toId : edge.fromId]; + // we do not want hubs to merge with other hubs nor do we want to cluster itself. + if ((childNode.dynamicEdges.length <= (this.hubThreshold + absorptionSizeOffset)) && + (childNode.id != hubNode.id)) { + this._addToCluster(hubNode,childNode,force); + } + } + } + } + } + }, + + + + /** + * This function adds the child node to the parent node, creating a cluster if it is not already. + * + * @param {Node} parentNode | this is the node that will house the child node + * @param {Node} childNode | this node will be deleted from the global this.nodes and stored in the parent node + * @param {Boolean} force | true will only update the remainingEdges at the very end of the clustering, ensuring single level collapse + * @private + */ + _addToCluster : function(parentNode, childNode, force) { + // join child node in the parent node + parentNode.containedNodes[childNode.id] = childNode; + + // manage all the edges connected to the child and parent nodes + for (var i = 0; i < childNode.dynamicEdges.length; i++) { + var edge = childNode.dynamicEdges[i]; + if (edge.toId == parentNode.id || edge.fromId == parentNode.id) { // edge connected to parentNode + this._addToContainedEdges(parentNode,childNode,edge); + } + else { + this._connectEdgeToCluster(parentNode,childNode,edge); + } + } + // a contained node has no dynamic edges. + childNode.dynamicEdges = []; + + // remove circular edges from clusters + this._containCircularEdgesFromNode(parentNode,childNode); + + + // remove the childNode from the global nodes object + delete this.nodes[childNode.id]; + + // update the properties of the child and parent + var massBefore = parentNode.mass; + childNode.clusterSession = this.clusterSession; + parentNode.mass += childNode.mass; + parentNode.clusterSize += childNode.clusterSize; + parentNode.fontSize = Math.min(this.constants.clustering.maxFontSize, this.constants.nodes.fontSize + this.constants.clustering.fontSizeMultiplier*parentNode.clusterSize); + + // keep track of the clustersessions so we can open the cluster up as it has been formed. + if (parentNode.clusterSessions[parentNode.clusterSessions.length - 1] != this.clusterSession) { + parentNode.clusterSessions.push(this.clusterSession); + } + + // forced clusters only open from screen size and double tap + if (force == true) { + // parentNode.formationScale = Math.pow(1 - (1.0/11.0),this.clusterSession+3); + parentNode.formationScale = 0; + } + else { + parentNode.formationScale = this.scale; // The latest child has been added on this scale + } + + // recalculate the size of the node on the next time the node is rendered + parentNode.clearSizeCache(); + + // set the pop-out scale for the childnode + parentNode.containedNodes[childNode.id].formationScale = parentNode.formationScale; + + // nullify the movement velocity of the child, this is to avoid hectic behaviour + childNode.clearVelocity(); + + // the mass has altered, preservation of energy dictates the velocity to be updated + parentNode.updateVelocity(massBefore); + + // restart the simulation to reorganise all nodes + this.moving = true; + }, + + + /** + * This function will apply the changes made to the remainingEdges during the formation of the clusters. + * This is a seperate function to allow for level-wise collapsing of the node barnesHutTree. + * It has to be called if a level is collapsed. It is called by _formClusters(). + * @private + */ + _updateDynamicEdges : function() { + for (var i = 0; i < this.nodeIndices.length; i++) { + var node = this.nodes[this.nodeIndices[i]]; + node.dynamicEdgesLength = node.dynamicEdges.length; + + // this corrects for multiple edges pointing at the same other node + var correction = 0; + if (node.dynamicEdgesLength > 1) { + for (var j = 0; j < node.dynamicEdgesLength - 1; j++) { + var edgeToId = node.dynamicEdges[j].toId; + var edgeFromId = node.dynamicEdges[j].fromId; + for (var k = j+1; k < node.dynamicEdgesLength; k++) { + if ((node.dynamicEdges[k].toId == edgeToId && node.dynamicEdges[k].fromId == edgeFromId) || + (node.dynamicEdges[k].fromId == edgeToId && node.dynamicEdges[k].toId == edgeFromId)) { + correction += 1; + } + } + } + } + node.dynamicEdgesLength -= correction; + } + }, + + + /** + * This adds an edge from the childNode to the contained edges of the parent node + * + * @param parentNode | Node object + * @param childNode | Node object + * @param edge | Edge object + * @private + */ + _addToContainedEdges : function(parentNode, childNode, edge) { + // create an array object if it does not yet exist for this childNode + if (!(parentNode.containedEdges.hasOwnProperty(childNode.id))) { + parentNode.containedEdges[childNode.id] = [] + } + // add this edge to the list + parentNode.containedEdges[childNode.id].push(edge); + + // remove the edge from the global edges object + delete this.edges[edge.id]; + + // remove the edge from the parent object + for (var i = 0; i < parentNode.dynamicEdges.length; i++) { + if (parentNode.dynamicEdges[i].id == edge.id) { + parentNode.dynamicEdges.splice(i,1); + break; + } + } + }, + + /** + * This function connects an edge that was connected to a child node to the parent node. + * It keeps track of which nodes it has been connected to with the originalId array. + * + * @param {Node} parentNode | Node object + * @param {Node} childNode | Node object + * @param {Edge} edge | Edge object + * @private + */ + _connectEdgeToCluster : function(parentNode, childNode, edge) { + // handle circular edges + if (edge.toId == edge.fromId) { + this._addToContainedEdges(parentNode, childNode, edge); + } + else { + if (edge.toId == childNode.id) { // edge connected to other node on the "to" side + edge.originalToId.push(childNode.id); + edge.to = parentNode; + edge.toId = parentNode.id; + } + else { // edge connected to other node with the "from" side + + edge.originalFromId.push(childNode.id); + edge.from = parentNode; + edge.fromId = parentNode.id; + } + + this._addToReroutedEdges(parentNode,childNode,edge); + } + }, + + + /** + * If a node is connected to itself, a circular edge is drawn. When clustering we want to contain + * these edges inside of the cluster. + * + * @param parentNode + * @param childNode + * @private + */ + _containCircularEdgesFromNode : function(parentNode, childNode) { + // manage all the edges connected to the child and parent nodes + for (var i = 0; i < parentNode.dynamicEdges.length; i++) { + var edge = parentNode.dynamicEdges[i]; + // handle circular edges + if (edge.toId == edge.fromId) { + this._addToContainedEdges(parentNode, childNode, edge); + } + } + }, + + + /** + * This adds an edge from the childNode to the rerouted edges of the parent node + * + * @param parentNode | Node object + * @param childNode | Node object + * @param edge | Edge object + * @private + */ + _addToReroutedEdges : function(parentNode, childNode, edge) { + // create an array object if it does not yet exist for this childNode + // we store the edge in the rerouted edges so we can restore it when the cluster pops open + if (!(parentNode.reroutedEdges.hasOwnProperty(childNode.id))) { + parentNode.reroutedEdges[childNode.id] = []; + } + parentNode.reroutedEdges[childNode.id].push(edge); + + // this edge becomes part of the dynamicEdges of the cluster node + parentNode.dynamicEdges.push(edge); + }, + + + + /** + * This function connects an edge that was connected to a cluster node back to the child node. + * + * @param parentNode | Node object + * @param childNode | Node object + * @private + */ + _connectEdgeBackToChild : function(parentNode, childNode) { + if (parentNode.reroutedEdges.hasOwnProperty(childNode.id)) { + for (var i = 0; i < parentNode.reroutedEdges[childNode.id].length; i++) { + var edge = parentNode.reroutedEdges[childNode.id][i]; + if (edge.originalFromId[edge.originalFromId.length-1] == childNode.id) { + edge.originalFromId.pop(); + edge.fromId = childNode.id; + edge.from = childNode; + } + else { + edge.originalToId.pop(); + edge.toId = childNode.id; + edge.to = childNode; + } + + // append this edge to the list of edges connecting to the childnode + childNode.dynamicEdges.push(edge); + + // remove the edge from the parent object + for (var j = 0; j < parentNode.dynamicEdges.length; j++) { + if (parentNode.dynamicEdges[j].id == edge.id) { + parentNode.dynamicEdges.splice(j,1); + break; + } + } + } + // remove the entry from the rerouted edges + delete parentNode.reroutedEdges[childNode.id]; + } + }, + + + /** + * When loops are clustered, an edge can be both in the rerouted array and the contained array. + * This function is called last to verify that all edges in dynamicEdges are in fact connected to the + * parentNode + * + * @param parentNode | Node object + * @private + */ + _validateEdges : function(parentNode) { + for (var i = 0; i < parentNode.dynamicEdges.length; i++) { + var edge = parentNode.dynamicEdges[i]; + if (parentNode.id != edge.toId && parentNode.id != edge.fromId) { + parentNode.dynamicEdges.splice(i,1); + } + } + }, + + + /** + * This function released the contained edges back into the global domain and puts them back into the + * dynamic edges of both parent and child. + * + * @param {Node} parentNode | + * @param {Node} childNode | + * @private + */ + _releaseContainedEdges : function(parentNode, childNode) { + for (var i = 0; i < parentNode.containedEdges[childNode.id].length; i++) { + var edge = parentNode.containedEdges[childNode.id][i]; + + // put the edge back in the global edges object + this.edges[edge.id] = edge; + + // put the edge back in the dynamic edges of the child and parent + childNode.dynamicEdges.push(edge); + parentNode.dynamicEdges.push(edge); + } + // remove the entry from the contained edges + delete parentNode.containedEdges[childNode.id]; + + }, + + + + + // ------------------- UTILITY FUNCTIONS ---------------------------- // + + + /** + * This updates the node labels for all nodes (for debugging purposes) + */ + updateLabels : function() { + var nodeId; + // update node labels + for (nodeId in this.nodes) { + if (this.nodes.hasOwnProperty(nodeId)) { + var node = this.nodes[nodeId]; + if (node.clusterSize > 1) { + node.label = "[".concat(String(node.clusterSize),"]"); + } + } + } + + // update node labels + for (nodeId in this.nodes) { + if (this.nodes.hasOwnProperty(nodeId)) { + node = this.nodes[nodeId]; + if (node.clusterSize == 1) { + if (node.originalLabel !== undefined) { + node.label = node.originalLabel; + } + else { + node.label = String(node.id); + } + } + } + } + +// /* Debug Override */ +// for (nodeId in this.nodes) { +// if (this.nodes.hasOwnProperty(nodeId)) { +// node = this.nodes[nodeId]; +// node.label = String(node.level); +// } +// } + + }, + + + /** + * We want to keep the cluster level distribution rather small. This means we do not want unclustered nodes + * if the rest of the nodes are already a few cluster levels in. + * To fix this we use this function. It determines the min and max cluster level and sends nodes that have not + * clustered enough to the clusterToSmallestNeighbours function. + */ + normalizeClusterLevels : function() { + var maxLevel = 0; + var minLevel = 1e9; + var clusterLevel = 0; + + // we loop over all nodes in the list + for (var nodeId in this.nodes) { + if (this.nodes.hasOwnProperty(nodeId)) { + clusterLevel = this.nodes[nodeId].clusterSessions.length; + if (maxLevel < clusterLevel) {maxLevel = clusterLevel;} + if (minLevel > clusterLevel) {minLevel = clusterLevel;} + } + } + + if (maxLevel - minLevel > this.constants.clustering.clusterLevelDifference) { + var amountOfNodes = this.nodeIndices.length; + var targetLevel = maxLevel - this.constants.clustering.clusterLevelDifference; + // we loop over all nodes in the list + for (var nodeId in this.nodes) { + if (this.nodes.hasOwnProperty(nodeId)) { + if (this.nodes[nodeId].clusterSessions.length < targetLevel) { + this._clusterToSmallestNeighbour(this.nodes[nodeId]); + } + } + } + this._updateNodeIndexList(); + this._updateDynamicEdges(); + // if a cluster was formed, we increase the clusterSession + if (this.nodeIndices.length != amountOfNodes) { + this.clusterSession += 1; + } + } + }, + + + + /** + * This function determines if the cluster we want to decluster is in the active area + * this means around the zoom center + * + * @param {Node} node + * @returns {boolean} + * @private + */ + _nodeInActiveArea : function(node) { + return ( + Math.abs(node.x - this.areaCenter.x) <= this.constants.clustering.activeAreaBoxSize/this.scale + && + Math.abs(node.y - this.areaCenter.y) <= this.constants.clustering.activeAreaBoxSize/this.scale + ) + }, + + + /** + * This is an adaptation of the original repositioning function. This is called if the system is clustered initially + * It puts large clusters away from the center and randomizes the order. + * + */ + repositionNodes : function() { + for (var i = 0; i < this.nodeIndices.length; i++) { + var node = this.nodes[this.nodeIndices[i]]; + if ((node.xFixed == false || node.yFixed == false) && this.createNodeOnClick != true) { + var radius = this.constants.physics.springLength * Math.min(100,node.mass); + var angle = 2 * Math.PI * Math.random(); + if (node.xFixed == false) {node.x = radius * Math.cos(angle);} + if (node.yFixed == false) {node.y = radius * Math.sin(angle);} + this._repositionBezierNodes(node); + } + } + }, + + + /** + * We determine how many connections denote an important hub. + * We take the mean + 2*std as the important hub size. (Assuming a normal distribution of data, ~2.2%) + * + * @private + */ + _getHubSize : function() { + var average = 0; + var averageSquared = 0; + var hubCounter = 0; + var largestHub = 0; + + for (var i = 0; i < this.nodeIndices.length; i++) { + + var node = this.nodes[this.nodeIndices[i]]; + if (node.dynamicEdgesLength > largestHub) { + largestHub = node.dynamicEdgesLength; + } + average += node.dynamicEdgesLength; + averageSquared += Math.pow(node.dynamicEdgesLength,2); + hubCounter += 1; + } + average = average / hubCounter; + averageSquared = averageSquared / hubCounter; + + var variance = averageSquared - Math.pow(average,2); + + var standardDeviation = Math.sqrt(variance); + + this.hubThreshold = Math.floor(average + 2*standardDeviation); + + // always have at least one to cluster + if (this.hubThreshold > largestHub) { + this.hubThreshold = largestHub; + } + + // console.log("average",average,"averageSQ",averageSquared,"var",variance,"std",standardDeviation); + // console.log("hubThreshold:",this.hubThreshold); + }, + + + /** + * We reduce the amount of "extension nodes" or chains. These are not quickly clustered with the outliers and hubs methods + * with this amount we can cluster specifically on these chains. + * + * @param {Number} fraction | between 0 and 1, the percentage of chains to reduce + * @private + */ + _reduceAmountOfChains : function(fraction) { + this.hubThreshold = 2; + var reduceAmount = Math.floor(this.nodeIndices.length * fraction); + for (var nodeId in this.nodes) { + if (this.nodes.hasOwnProperty(nodeId)) { + if (this.nodes[nodeId].dynamicEdgesLength == 2 && this.nodes[nodeId].dynamicEdges.length >= 2) { + if (reduceAmount > 0) { + this._formClusterFromHub(this.nodes[nodeId],true,true,1); + reduceAmount -= 1; + } + } + } + } + }, + + /** + * We get the amount of "extension nodes" or chains. These are not quickly clustered with the outliers and hubs methods + * with this amount we can cluster specifically on these chains. + * + * @private + */ + _getChainFraction : function() { + var chains = 0; + var total = 0; + for (var nodeId in this.nodes) { + if (this.nodes.hasOwnProperty(nodeId)) { + if (this.nodes[nodeId].dynamicEdgesLength == 2 && this.nodes[nodeId].dynamicEdges.length >= 2) { + chains += 1; + } + total += 1; + } + } + return chains/total; + } + +}; + + +var SelectionMixin = { + + /** + * This function can be called from the _doInAllSectors function + * + * @param object + * @param overlappingNodes + * @private + */ + _getNodesOverlappingWith : function(object, overlappingNodes) { + var nodes = this.nodes; + for (var nodeId in nodes) { + if (nodes.hasOwnProperty(nodeId)) { + if (nodes[nodeId].isOverlappingWith(object)) { + overlappingNodes.push(nodeId); + } + } + } + }, + + /** + * retrieve all nodes overlapping with given object + * @param {Object} object An object with parameters left, top, right, bottom + * @return {Number[]} An array with id's of the overlapping nodes + * @private + */ + _getAllNodesOverlappingWith : function (object) { + var overlappingNodes = []; + this._doInAllActiveSectors("_getNodesOverlappingWith",object,overlappingNodes); + return overlappingNodes; + }, + + + /** + * Return a position object in canvasspace from a single point in screenspace + * + * @param pointer + * @returns {{left: number, top: number, right: number, bottom: number}} + * @private + */ + _pointerToPositionObject : function(pointer) { + var x = this._canvasToX(pointer.x); + var y = this._canvasToY(pointer.y); + + return {left: x, + top: y, + right: x, + bottom: y}; + }, + + + /** + * Get the top node at the a specific point (like a click) + * + * @param {{x: Number, y: Number}} pointer + * @return {Node | null} node + * @private + */ + _getNodeAt : function (pointer) { + // we first check if this is an navigation controls element + var positionObject = this._pointerToPositionObject(pointer); + var overlappingNodes = this._getAllNodesOverlappingWith(positionObject); + + // if there are overlapping nodes, select the last one, this is the + // one which is drawn on top of the others + if (overlappingNodes.length > 0) { + return this.nodes[overlappingNodes[overlappingNodes.length - 1]]; + } + else { + return null; + } + }, + + + /** + * retrieve all edges overlapping with given object, selector is around center + * @param {Object} object An object with parameters left, top, right, bottom + * @return {Number[]} An array with id's of the overlapping nodes + * @private + */ + _getEdgesOverlappingWith : function (object, overlappingEdges) { + var edges = this.edges; + for (var edgeId in edges) { + if (edges.hasOwnProperty(edgeId)) { + if (edges[edgeId].isOverlappingWith(object)) { + overlappingEdges.push(edgeId); + } + } + } + }, + + + /** + * retrieve all nodes overlapping with given object + * @param {Object} object An object with parameters left, top, right, bottom + * @return {Number[]} An array with id's of the overlapping nodes + * @private + */ + _getAllEdgesOverlappingWith : function (object) { + var overlappingEdges = []; + this._doInAllActiveSectors("_getEdgesOverlappingWith",object,overlappingEdges); + return overlappingEdges; + }, + + /** + * Place holder. To implement change the _getNodeAt to a _getObjectAt. Have the _getObjectAt call + * _getNodeAt and _getEdgesAt, then priortize the selection to user preferences. + * + * @param pointer + * @returns {null} + * @private + */ + _getEdgeAt : function(pointer) { + var positionObject = this._pointerToPositionObject(pointer); + var overlappingEdges = this._getAllEdgesOverlappingWith(positionObject); + + if (overlappingEdges.length > 0) { + return this.edges[overlappingEdges[overlappingEdges.length - 1]]; + } + else { + return null; + } + }, + + + /** + * Add object to the selection array. + * + * @param obj + * @private + */ + _addToSelection : function(obj) { + this.selectionObj[obj.id] = obj; + }, + + + /** + * Remove a single option from selection. + * + * @param {Object} obj + * @private + */ + _removeFromSelection : function(obj) { + delete this.selectionObj[obj.id]; + }, + + + /** + * Unselect all. The selectionObj is useful for this. + * + * @param {Boolean} [doNotTrigger] | ignore trigger + * @private + */ + _unselectAll : function(doNotTrigger) { + if (doNotTrigger === undefined) { + doNotTrigger = false; + } + + for (var objectId in this.selectionObj) { + if (this.selectionObj.hasOwnProperty(objectId)) { + this.selectionObj[objectId].unselect(); + } + } + this.selectionObj = {}; + + if (doNotTrigger == false) { + this.emit('select', this.getSelection()); + } + }, + + /** + * Unselect all clusters. The selectionObj is useful for this. + * + * @param {Boolean} [doNotTrigger] | ignore trigger + * @private + */ + _unselectClusters : function(doNotTrigger) { + if (doNotTrigger === undefined) { + doNotTrigger = false; + } + + for (var objectId in this.selectionObj) { + if (this.selectionObj.hasOwnProperty(objectId)) { + if (this.selectionObj[objectId] instanceof Node) { + if (this.selectionObj[objectId].clusterSize > 1) { + this.selectionObj[objectId].unselect(); + this._removeFromSelection(this.selectionObj[objectId]); + } + } + } + } + + if (doNotTrigger == false) { + this.emit('select', this.getSelection()); + } + }, + + + /** + * return the number of selected nodes + * + * @returns {number} + * @private + */ + _getSelectedNodeCount : function() { + var count = 0; + for (var objectId in this.selectionObj) { + if (this.selectionObj.hasOwnProperty(objectId)) { + if (this.selectionObj[objectId] instanceof Node) { + count += 1; + } + } + } + return count; + }, + + /** + * return the number of selected nodes + * + * @returns {number} + * @private + */ + _getSelectedNode : function() { + for (var objectId in this.selectionObj) { + if (this.selectionObj.hasOwnProperty(objectId)) { + if (this.selectionObj[objectId] instanceof Node) { + return this.selectionObj[objectId]; + } + } + } + return null; + }, + + + /** + * return the number of selected edges + * + * @returns {number} + * @private + */ + _getSelectedEdgeCount : function() { + var count = 0; + for (var objectId in this.selectionObj) { + if (this.selectionObj.hasOwnProperty(objectId)) { + if (this.selectionObj[objectId] instanceof Edge) { + count += 1; + } + } + } + return count; + }, + + + /** + * return the number of selected objects. + * + * @returns {number} + * @private + */ + _getSelectedObjectCount : function() { + var count = 0; + for (var objectId in this.selectionObj) { + if (this.selectionObj.hasOwnProperty(objectId)) { + count += 1; + } + } + return count; + }, + + /** + * Check if anything is selected + * + * @returns {boolean} + * @private + */ + _selectionIsEmpty : function() { + for(var objectId in this.selectionObj) { + if(this.selectionObj.hasOwnProperty(objectId)) { + return false; + } + } + return true; + }, + + + /** + * check if one of the selected nodes is a cluster. + * + * @returns {boolean} + * @private + */ + _clusterInSelection : function() { + for(var objectId in this.selectionObj) { + if(this.selectionObj.hasOwnProperty(objectId)) { + if (this.selectionObj[objectId] instanceof Node) { + if (this.selectionObj[objectId].clusterSize > 1) { + return true; + } + } + } + } + return false; + }, + + /** + * select the edges connected to the node that is being selected + * + * @param {Node} node + * @private + */ + _selectConnectedEdges : function(node) { + for (var i = 0; i < node.dynamicEdges.length; i++) { + var edge = node.dynamicEdges[i]; + edge.select(); + this._addToSelection(edge); + } + }, + + + /** + * unselect the edges connected to the node that is being selected + * + * @param {Node} node + * @private + */ + _unselectConnectedEdges : function(node) { + for (var i = 0; i < node.dynamicEdges.length; i++) { + var edge = node.dynamicEdges[i]; + edge.unselect(); + this._removeFromSelection(edge); + } + }, + + + + /** + * This is called when someone clicks on a node. either select or deselect it. + * If there is an existing selection and we don't want to append to it, clear the existing selection + * + * @param {Node || Edge} object + * @param {Boolean} append + * @param {Boolean} [doNotTrigger] | ignore trigger + * @private + */ + _selectObject : function(object, append, doNotTrigger) { + if (doNotTrigger === undefined) { + doNotTrigger = false; + } + + if (this._selectionIsEmpty() == false && append == false && this.forceAppendSelection == false) { + this._unselectAll(true); + } + + if (object.selected == false) { + object.select(); + this._addToSelection(object); + if (object instanceof Node && this.blockConnectingEdgeSelection == false) { + this._selectConnectedEdges(object); + } + } + else { + object.unselect(); + this._removeFromSelection(object); + } + if (doNotTrigger == false) { + this.emit('select', this.getSelection()); + } + }, + + + /** + * handles the selection part of the touch, only for navigation controls elements; + * Touch is triggered before tap, also before hold. Hold triggers after a while. + * This is the most responsive solution + * + * @param {Object} pointer + * @private + */ + _handleTouch : function(pointer) { + + }, + + + /** + * handles the selection part of the tap; + * + * @param {Object} pointer + * @private + */ + _handleTap : function(pointer) { + var node = this._getNodeAt(pointer); + if (node != null) { + this._selectObject(node,false); + } + else { + var edge = this._getEdgeAt(pointer); + if (edge != null) { + this._selectObject(edge,false); + } + else { + this._unselectAll(); + } + } + this._redraw(); + }, + + + /** + * handles the selection part of the double tap and opens a cluster if needed + * + * @param {Object} pointer + * @private + */ + _handleDoubleTap : function(pointer) { + var node = this._getNodeAt(pointer); + if (node != null && node !== undefined) { + // we reset the areaCenter here so the opening of the node will occur + this.areaCenter = {"x" : this._canvasToX(pointer.x), + "y" : this._canvasToY(pointer.y)}; + this.openCluster(node); + } + }, + + + /** + * Handle the onHold selection part + * + * @param pointer + * @private + */ + _handleOnHold : function(pointer) { + var node = this._getNodeAt(pointer); + if (node != null) { + this._selectObject(node,true); + } + else { + var edge = this._getEdgeAt(pointer); + if (edge != null) { + this._selectObject(edge,true); + } + } + this._redraw(); + }, + + + /** + * handle the onRelease event. These functions are here for the navigation controls module. + * + * @private + */ + _handleOnRelease : function(pointer) { + + }, + + + + /** + * + * retrieve the currently selected objects + * @return {Number[] | String[]} selection An array with the ids of the + * selected nodes. + */ + getSelection : function() { + var nodeIds = this.getSelectedNodes(); + var edgeIds = this.getSelectedEdges(); + return {nodes:nodeIds, edges:edgeIds}; + }, + + /** + * + * retrieve the currently selected nodes + * @return {String} selection An array with the ids of the + * selected nodes. + */ + getSelectedNodes : function() { + var idArray = []; + for(var objectId in this.selectionObj) { + if(this.selectionObj.hasOwnProperty(objectId)) { + if (this.selectionObj[objectId] instanceof Node) { + idArray.push(objectId); + } + } + } + return idArray + }, + + /** + * + * retrieve the currently selected edges + * @return {Array} selection An array with the ids of the + * selected nodes. + */ + getSelectedEdges : function() { + var idArray = []; + for(var objectId in this.selectionObj) { + if(this.selectionObj.hasOwnProperty(objectId)) { + if (this.selectionObj[objectId] instanceof Edge) { + idArray.push(objectId); + } + } + } + return idArray + }, + + + /** + * select zero or more nodes + * @param {Number[] | String[]} selection An array with the ids of the + * selected nodes. + */ + setSelection : function(selection) { + var i, iMax, id; + + if (!selection || (selection.length == undefined)) + throw 'Selection must be an array with ids'; + + // first unselect any selected node + this._unselectAll(true); + + for (i = 0, iMax = selection.length; i < iMax; i++) { + id = selection[i]; + + var node = this.nodes[id]; + if (!node) { + throw new RangeError('Node with id "' + id + '" not found'); + } + this._selectObject(node,true,true); + } + this.redraw(); + }, + + + /** + * Validate the selection: remove ids of nodes which no longer exist + * @private + */ + _updateSelection : function () { + for(var objectId in this.selectionObj) { + if(this.selectionObj.hasOwnProperty(objectId)) { + if (this.selectionObj[objectId] instanceof Node) { + if (!this.nodes.hasOwnProperty(objectId)) { + delete this.selectionObj[objectId]; + } + } + else { // assuming only edges and nodes are selected + if (!this.edges.hasOwnProperty(objectId)) { + delete this.selectionObj[objectId]; + } + } + } + } + } +}; + + + +/** + * Created by Alex on 1/22/14. + */ + +var NavigationMixin = { + + _cleanNavigation : function() { + // clean up previosu navigation items + var wrapper = document.getElementById('graph-navigation_wrapper'); + if (wrapper != null) { + this.containerElement.removeChild(wrapper); + } + document.onmouseup = null; + }, + + /** + * Creation of the navigation controls nodes. They are drawn over the rest of the nodes and are not affected by scale and translation + * they have a triggerFunction which is called on click. If the position of the navigation controls is dependent + * on this.frame.canvas.clientWidth or this.frame.canvas.clientHeight, we flag horizontalAlignLeft and verticalAlignTop false. + * This means that the location will be corrected by the _relocateNavigation function on a size change of the canvas. + * + * @private + */ + _loadNavigationElements : function() { + this._cleanNavigation(); + + this.navigationDivs = {}; + var navigationDivs = ['up','down','left','right','zoomIn','zoomOut','zoomExtends']; + var navigationDivActions = ['_moveUp','_moveDown','_moveLeft','_moveRight','_zoomIn','_zoomOut','zoomToFit']; + + this.navigationDivs['wrapper'] = document.createElement('div'); + this.navigationDivs['wrapper'].id = "graph-navigation_wrapper"; + this.containerElement.insertBefore(this.navigationDivs['wrapper'],this.frame); + + for (var i = 0; i < navigationDivs.length; i++) { + this.navigationDivs[navigationDivs[i]] = document.createElement('div'); + this.navigationDivs[navigationDivs[i]].id = "graph-navigation_" + navigationDivs[i]; + this.navigationDivs[navigationDivs[i]].className = "graph-navigation " + navigationDivs[i]; + this.navigationDivs['wrapper'].appendChild(this.navigationDivs[navigationDivs[i]]); + this.navigationDivs[navigationDivs[i]].onmousedown = this[navigationDivActions[i]].bind(this); + } + + document.onmouseup = this._stopMovement.bind(this); + }, + + /** + * this stops all movement induced by the navigation buttons + * + * @private + */ + _stopMovement : function() { + this._xStopMoving(); + this._yStopMoving(); + this._stopZoom(); + }, + + + /** + * stops the actions performed by page up and down etc. + * + * @param event + * @private + */ + _preventDefault : function(event) { + if (event !== undefined) { + if (event.preventDefault) { + event.preventDefault(); + } else { + event.returnValue = false; + } + } + }, + + + /** + * move the screen up + * By using the increments, instead of adding a fixed number to the translation, we keep fluent and + * instant movement. The onKeypress event triggers immediately, then pauses, then triggers frequently + * To avoid this behaviour, we do the translation in the start loop. + * + * @private + */ + _moveUp : function(event) { + console.log("here") + this.yIncrement = this.constants.keyboard.speed.y; + this.start(); // if there is no node movement, the calculation wont be done + this._preventDefault(event); + }, + + + /** + * move the screen down + * @private + */ + _moveDown : function(event) { + this.yIncrement = -this.constants.keyboard.speed.y; + this.start(); // if there is no node movement, the calculation wont be done + this._preventDefault(event); + }, + + + /** + * move the screen left + * @private + */ + _moveLeft : function(event) { + this.xIncrement = this.constants.keyboard.speed.x; + this.start(); // if there is no node movement, the calculation wont be done + this._preventDefault(event); + }, + + + /** + * move the screen right + * @private + */ + _moveRight : function(event) { + this.xIncrement = -this.constants.keyboard.speed.y; + this.start(); // if there is no node movement, the calculation wont be done + this._preventDefault(event); + }, + + + /** + * Zoom in, using the same method as the movement. + * @private + */ + _zoomIn : function(event) { + this.zoomIncrement = this.constants.keyboard.speed.zoom; + this.start(); // if there is no node movement, the calculation wont be done + this._preventDefault(event); + }, + + + /** + * Zoom out + * @private + */ + _zoomOut : function() { + this.zoomIncrement = -this.constants.keyboard.speed.zoom; + this.start(); // if there is no node movement, the calculation wont be done + this._preventDefault(event); + }, + + + /** + * Stop zooming and unhighlight the zoom controls + * @private + */ + _stopZoom : function() { + this.zoomIncrement = 0; + }, + + + /** + * Stop moving in the Y direction and unHighlight the up and down + * @private + */ + _yStopMoving : function() { + this.yIncrement = 0; + }, + + + /** + * Stop moving in the X direction and unHighlight left and right. + * @private + */ + _xStopMoving : function() { + this.xIncrement = 0; + } + + +}; + +/** + * Created by Alex on 2/10/14. + */ + + +var graphMixinLoaders = { + + /** + * Load a mixin into the graph object + * + * @param {Object} sourceVariable | this object has to contain functions. + * @private + */ + _loadMixin : function(sourceVariable) { + for (var mixinFunction in sourceVariable) { + if (sourceVariable.hasOwnProperty(mixinFunction)) { + Graph.prototype[mixinFunction] = sourceVariable[mixinFunction]; + } + } + }, + + + /** + * removes a mixin from the graph object. + * + * @param {Object} sourceVariable | this object has to contain functions. + * @private + */ + _clearMixin : function(sourceVariable) { + for (var mixinFunction in sourceVariable) { + if (sourceVariable.hasOwnProperty(mixinFunction)) { + Graph.prototype[mixinFunction] = undefined; + } + } + }, + + + /** + * Mixin the physics system and initialize the parameters required. + * + * @private + */ + _loadPhysicsSystem : function() { + this._loadMixin(physicsMixin); + this._loadSelectedForceSolver(); + }, + + + /** + * This loads the node force solver based on the barnes hut or repulsion algorithm + * + * @private + */ + _loadSelectedForceSolver : function() { + // this overloads the this._calculateNodeForces + if (this.constants.physics.barnesHut.enabled == true) { + this._clearMixin(repulsionMixin); + this._clearMixin(hierarchalRepulsionMixin); + + this.constants.physics.centralGravity = this.constants.physics.barnesHut.centralGravity; + this.constants.physics.springLength = this.constants.physics.barnesHut.springLength; + this.constants.physics.springConstant = this.constants.physics.barnesHut.springConstant; + this.constants.physics.damping = this.constants.physics.barnesHut.damping; + + this._loadMixin(barnesHutMixin); + } + else if (this.constants.physics.hierarchicalRepulsion.enabled == true) { + this._clearMixin(barnesHutMixin); + this._clearMixin(repulsionMixin); + + this.constants.physics.centralGravity = this.constants.physics.hierarchicalRepulsion.centralGravity; + this.constants.physics.springLength = this.constants.physics.hierarchicalRepulsion.springLength; + this.constants.physics.springConstant = this.constants.physics.hierarchicalRepulsion.springConstant; + this.constants.physics.damping = this.constants.physics.hierarchicalRepulsion.damping; + + this._loadMixin(hierarchalRepulsionMixin); + } + else { + this._clearMixin(barnesHutMixin); + this._clearMixin(hierarchalRepulsionMixin); + this.barnesHutTree = undefined; + + this.constants.physics.centralGravity = this.constants.physics.repulsion.centralGravity; + this.constants.physics.springLength = this.constants.physics.repulsion.springLength; + this.constants.physics.springConstant = this.constants.physics.repulsion.springConstant; + this.constants.physics.damping = this.constants.physics.repulsion.damping; + + this._loadMixin(repulsionMixin); + } + }, + + + /** + * Mixin the cluster system and initialize the parameters required. + * + * @private + */ + _loadClusterSystem : function() { + this.clusterSession = 0; + this.hubThreshold = 5; + this._loadMixin(ClusterMixin); + }, + + + /** + * Mixin the sector system and initialize the parameters required + * + * @private + */ + _loadSectorSystem : function() { + this.sectors = { }, + this.activeSector = ["default"]; + this.sectors["active"] = { }, + this.sectors["active"]["default"] = {"nodes":{}, + "edges":{}, + "nodeIndices":[], + "formationScale": 1.0, + "drawingNode": undefined }; + this.sectors["frozen"] = {}, + this.sectors["support"] = {"nodes":{}, + "edges":{}, + "nodeIndices":[], + "formationScale": 1.0, + "drawingNode": undefined }; + + this.nodeIndices = this.sectors["active"]["default"]["nodeIndices"]; // the node indices list is used to speed up the computation of the repulsion fields + + this._loadMixin(SectorMixin); + }, + + + /** + * Mixin the selection system and initialize the parameters required + * + * @private + */ + _loadSelectionSystem : function() { + this.selectionObj = { }; + + this._loadMixin(SelectionMixin); + }, + + + /** + * Mixin the navigationUI (User Interface) system and initialize the parameters required + * + * @private + */ + _loadManipulationSystem : function() { + // reset global variables -- these are used by the selection of nodes and edges. + this.blockConnectingEdgeSelection = false; + this.forceAppendSelection = false + + if (this.constants.dataManipulation.enabled == true) { + // load the manipulator HTML elements. All styling done in css. + if (this.manipulationDiv === undefined) { + this.manipulationDiv = document.createElement('div'); + this.manipulationDiv.className = 'graph-manipulationDiv'; + this.manipulationDiv.id = 'graph-manipulationDiv'; + if (this.editMode == true) { + this.manipulationDiv.style.display = "block"; + } + else { + this.manipulationDiv.style.display = "none"; + } + this.containerElement.insertBefore(this.manipulationDiv, this.frame); + } + + if (this.editModeDiv === undefined) { + this.editModeDiv = document.createElement('div'); + this.editModeDiv.className = 'graph-manipulation-editMode'; + this.editModeDiv.id = 'graph-manipulation-editMode'; + if (this.editMode == true) { + this.editModeDiv.style.display = "none"; + } + else { + this.editModeDiv.style.display = "block"; + } + this.containerElement.insertBefore(this.editModeDiv, this.frame); + } + + if (this.closeDiv === undefined) { + this.closeDiv = document.createElement('div'); + this.closeDiv.className = 'graph-manipulation-closeDiv'; + this.closeDiv.id = 'graph-manipulation-closeDiv'; + this.closeDiv.style.display = this.manipulationDiv.style.display; + this.containerElement.insertBefore(this.closeDiv, this.frame); + } + + // load the manipulation functions + this._loadMixin(manipulationMixin); + + // create the manipulator toolbar + this._createManipulatorBar(); + } + else { + if (this.manipulationDiv !== undefined) { + // removes all the bindings and overloads + this._createManipulatorBar(); + // remove the manipulation divs + this.containerElement.removeChild(this.manipulationDiv); + this.containerElement.removeChild(this.editModeDiv); + this.containerElement.removeChild(this.closeDiv); + + this.manipulationDiv = undefined; + this.editModeDiv = undefined; + this.closeDiv = undefined; + // remove the mixin functions + this._clearMixin(manipulationMixin); + } + } + }, + + + /** + * Mixin the navigation (User Interface) system and initialize the parameters required + * + * @private + */ + _loadNavigationControls : function() { + this._loadMixin(NavigationMixin); + + // the clean function removes the button divs, this is done to remove the bindings. + this._cleanNavigation(); + if (this.constants.navigation.enabled == true) { + this._loadNavigationElements(); + } + }, + + + /** + * Mixin the hierarchical layout system. + * + * @private + */ + _loadHierarchySystem : function() { + this._loadMixin(HierarchicalLayoutMixin); + } + +} + +/** + * @constructor Graph + * Create a graph visualization, displaying nodes and edges. + * + * @param {Element} container The DOM element in which the Graph will + * be created. Normally a div element. + * @param {Object} data An object containing parameters + * {Array} nodes + * {Array} edges + * @param {Object} options Options + */ +function Graph (container, data, options) { + + this._initializeMixinLoaders(); + + // create variables and set default values + this.containerElement = container; + this.width = '100%'; + this.height = '100%'; + + // render and calculation settings + this.renderRefreshRate = 60; // hz (fps) + this.renderTimestep = 1000 / this.renderRefreshRate; // ms -- saves calculation later on + this.renderTime = 0.5 * this.renderTimestep; // measured time it takes to render a frame + this.maxRenderSteps = 3; // max amount of physics ticks per render step. + + this.stabilize = true; // stabilize before displaying the graph + this.selectable = true; + + // these functions are triggered when the dataset is edited + this.triggerFunctions = {add:null,edit:null,connect:null,delete:null}; + + // set constant values + this.constants = { + nodes: { + radiusMin: 5, + radiusMax: 20, + radius: 5, + shape: 'ellipse', + image: undefined, + widthMin: 16, // px + widthMax: 64, // px + fixed: false, + fontColor: 'black', + fontSize: 14, // px + fontFace: 'verdana', + level: -1, + color: { + border: '#2B7CE9', + background: '#97C2FC', + highlight: { + border: '#2B7CE9', + background: '#D2E5FF' + } + }, + borderColor: '#2B7CE9', + backgroundColor: '#97C2FC', + highlightColor: '#D2E5FF', + group: undefined + }, + edges: { + widthMin: 1, + widthMax: 15, + width: 1, + style: 'line', + color: '#848484', + fontColor: '#343434', + fontSize: 14, // px + fontFace: 'arial', + dash: { + length: 10, + gap: 5, + altLength: undefined + } + }, + physics: { + barnesHut: { + enabled: true, + theta: 1 / 0.6, // inverted to save time during calculation + gravitationalConstant: -2000, + centralGravity: 0.3, + springLength: 100, + springConstant: 0.05, + damping: 0.09 + }, + repulsion: { + centralGravity: 0.1, + springLength: 200, + springConstant: 0.05, + nodeDistance: 100, + damping: 0.09 + }, + hierarchicalRepulsion: { + enabled: false, + centralGravity: 0.0, + springLength: 100, + springConstant: 0.01, + nodeDistance: 60, + damping: 0.09 + }, + damping: null, + centralGravity: null, + springLength: null, + springConstant: null + }, + clustering: { // Per Node in Cluster = PNiC + enabled: false, // (Boolean) | global on/off switch for clustering. + initialMaxNodes: 100, // (# nodes) | if the initial amount of nodes is larger than this, we cluster until the total number is less than this threshold. + clusterThreshold:500, // (# nodes) | during calculate forces, we check if the total number of nodes is larger than this. If it is, cluster until reduced to reduceToNodes + reduceToNodes:300, // (# nodes) | during calculate forces, we check if the total number of nodes is larger than clusterThreshold. If it is, cluster until reduced to this + chainThreshold: 0.4, // (% of all drawn nodes)| maximum percentage of allowed chainnodes (long strings of connected nodes) within all nodes. (lower means less chains). + clusterEdgeThreshold: 20, // (px) | edge length threshold. if smaller, this node is clustered. + sectorThreshold: 100, // (# nodes in cluster) | cluster size threshold. If larger, expanding in own sector. + screenSizeThreshold: 0.2, // (% of canvas) | relative size threshold. If the width or height of a clusternode takes up this much of the screen, decluster node. + fontSizeMultiplier: 4.0, // (px PNiC) | how much the cluster font size grows per node in cluster (in px). + maxFontSize: 1000, + forceAmplification: 0.1, // (multiplier PNiC) | factor of increase fo the repulsion force of a cluster (per node in cluster). + distanceAmplification: 0.1, // (multiplier PNiC) | factor how much the repulsion distance of a cluster increases (per node in cluster). + edgeGrowth: 20, // (px PNiC) | amount of clusterSize connected to the edge is multiplied with this and added to edgeLength. + nodeScaling: {width: 1, // (px PNiC) | growth of the width per node in cluster. + height: 1, // (px PNiC) | growth of the height per node in cluster. + radius: 1}, // (px PNiC) | growth of the radius per node in cluster. + maxNodeSizeIncrements: 600, // (# increments) | max growth of the width per node in cluster. + activeAreaBoxSize: 80, // (px) | box area around the curser where clusters are popped open. + clusterLevelDifference: 2 + }, + navigation: { + enabled: false + }, + keyboard: { + enabled: false, + speed: {x: 10, y: 10, zoom: 0.02} + }, + dataManipulation: { + enabled: false, + initiallyVisible: false + }, + hierarchicalLayout: { + enabled:false, + levelSeparation: 150, + nodeSpacing: 100 + }, + smoothCurves: true, + maxVelocity: 10, + minVelocity: 0.1, // px/s + maxIterations: 1000 // maximum number of iteration to stabilize + }; + this.editMode = this.constants.dataManipulation.initiallyVisible; + + // Node variables + var graph = this; + this.groups = new Groups(); // object with groups + this.images = new Images(); // object with images + this.images.setOnloadCallback(function () { + graph._redraw(); + }); + + // keyboard navigation variables + this.xIncrement = 0; + this.yIncrement = 0; + this.zoomIncrement = 0; + + // loading all the mixins: + // load the force calculation functions, grouped under the physics system. + this._loadPhysicsSystem(); + // create a frame and canvas + this._create(); + // load the sector system. (mandatory, fully integrated with Graph) + this._loadSectorSystem(); + // load the cluster system. (mandatory, even when not using the cluster system, there are function calls to it) + this._loadClusterSystem(); + // load the selection system. (mandatory, required by Graph) + this._loadSelectionSystem(); + // load the selection system. (mandatory, required by Graph) + this._loadHierarchySystem(); + + // apply options + this.setOptions(options); + + // other vars + this.freezeSimulation = false;// freeze the simulation + this.cachedFunctions = {}; + + // containers for nodes and edges + this.calculationNodes = {}; + this.calculationNodeIndices = []; + this.nodeIndices = []; // array with all the indices of the nodes. Used to speed up forces calculation + this.nodes = {}; // object with Node objects + this.edges = {}; // object with Edge objects + + // position and scale variables and objects + this.canvasTopLeft = {"x": 0,"y": 0}; // coordinates of the top left of the canvas. they will be set during _redraw. + this.canvasBottomRight = {"x": 0,"y": 0}; // coordinates of the bottom right of the canvas. they will be set during _redraw + this.pointerPosition = {"x": 0,"y": 0}; // coordinates of the bottom right of the canvas. they will be set during _redraw + this.areaCenter = {}; // object with x and y elements used for determining the center of the zoom action + this.scale = 1; // defining the global scale variable in the constructor + this.previousScale = this.scale; // this is used to check if the zoom operation is zooming in or out + + // datasets or dataviews + this.nodesData = null; // A DataSet or DataView + this.edgesData = null; // A DataSet or DataView + + // create event listeners used to subscribe on the DataSets of the nodes and edges + this.nodesListeners = { + 'add': function (event, params) { + graph._addNodes(params.items); + graph.start(); + }, + 'update': function (event, params) { + graph._updateNodes(params.items); + graph.start(); + }, + 'remove': function (event, params) { + graph._removeNodes(params.items); + graph.start(); + } + }; + this.edgesListeners = { + 'add': function (event, params) { + graph._addEdges(params.items); + graph.start(); + }, + 'update': function (event, params) { + graph._updateEdges(params.items); + graph.start(); + }, + 'remove': function (event, params) { + graph._removeEdges(params.items); + graph.start(); + } + }; + + // properties for the animation + this.moving = true; + this.timer = undefined; // Scheduling function. Is definded in this.start(); + + // load data (the disable start variable will be the same as the enabled clustering) + this.setData(data,this.constants.clustering.enabled || this.constants.hierarchicalLayout.enabled); + + // hierarchical layout + if (this.constants.hierarchicalLayout.enabled == true) { + this._setupHierarchicalLayout(); + } + else { + // zoom so all data will fit on the screen, if clustering is enabled, we do not want start to be called here. + this.zoomToFit(true,this.constants.clustering.enabled); + } + + + // if clustering is disabled, the simulation will have started in the setData function + if (this.constants.clustering.enabled) { + this.startWithClustering(); + } +} + +// Extend Graph with an Emitter mixin +Emitter(Graph.prototype); + +/** + * Get the script path where the vis.js library is located + * + * @returns {string | null} path Path or null when not found. Path does not + * end with a slash. + * @private + */ +Graph.prototype._getScriptPath = function() { + var scripts = document.getElementsByTagName( 'script' ); + + // find script named vis.js or vis.min.js + for (var i = 0; i < scripts.length; i++) { + var src = scripts[i].src; + var match = src && /\/?vis(.min)?\.js$/.exec(src); + if (match) { + // return path without the script name + return src.substring(0, src.length - match[0].length); + } + } + + return null; +}; + + +/** + * Find the center position of the graph + * @private + */ +Graph.prototype._getRange = function() { + var minY = 1e9, maxY = -1e9, minX = 1e9, maxX = -1e9, node; + for (var nodeId in this.nodes) { + if (this.nodes.hasOwnProperty(nodeId)) { + node = this.nodes[nodeId]; + if (minX > (node.x - node.width)) {minX = node.x - node.width;} + if (maxX < (node.x + node.width)) {maxX = node.x + node.width;} + if (minY > (node.y - node.height)) {minY = node.y - node.height;} + if (maxY < (node.y + node.height)) {maxY = node.y + node.height;} + } + } + return {minX: minX, maxX: maxX, minY: minY, maxY: maxY}; +}; + + +/** + * @param {object} range = {minX: minX, maxX: maxX, minY: minY, maxY: maxY}; + * @returns {{x: number, y: number}} + * @private + */ +Graph.prototype._findCenter = function(range) { + return {x: (0.5 * (range.maxX + range.minX)), + y: (0.5 * (range.maxY + range.minY))}; +}; + + +/** + * center the graph + * + * @param {object} range = {minX: minX, maxX: maxX, minY: minY, maxY: maxY}; + */ +Graph.prototype._centerGraph = function(range) { + var center = this._findCenter(range); + + center.x *= this.scale; + center.y *= this.scale; + center.x -= 0.5 * this.frame.canvas.clientWidth; + center.y -= 0.5 * this.frame.canvas.clientHeight; + + this._setTranslation(-center.x,-center.y); // set at 0,0 +}; + + +/** + * This function zooms out to fit all data on screen based on amount of nodes + * + * @param {Boolean} [initialZoom] | zoom based on fitted formula or range, true = fitted, default = false; + */ +Graph.prototype.zoomToFit = function(initialZoom, disableStart) { + if (initialZoom === undefined) { + initialZoom = false; + } + + var range = this._getRange(); + var zoomLevel; + + if (initialZoom == true) { + var numberOfNodes = this.nodeIndices.length; + if (this.constants.smoothCurves == true) { + if (this.constants.clustering.enabled == true && + numberOfNodes >= this.constants.clustering.initialMaxNodes) { + zoomLevel = 49.07548 / (numberOfNodes + 142.05338) + 9.1444e-04; // this is obtained from fitting a dataset from 5 points with scale levels that looked good. + } + else { + zoomLevel = 12.662 / (numberOfNodes + 7.4147) + 0.0964822; // this is obtained from fitting a dataset from 5 points with scale levels that looked good. + } + } + else { + if (this.constants.clustering.enabled == true && + numberOfNodes >= this.constants.clustering.initialMaxNodes) { + zoomLevel = 77.5271985 / (numberOfNodes + 187.266146) + 4.76710517e-05; // this is obtained from fitting a dataset from 5 points with scale levels that looked good. + } + else { + zoomLevel = 30.5062972 / (numberOfNodes + 19.93597763) + 0.08413486; // this is obtained from fitting a dataset from 5 points with scale levels that looked good. + } + } + } + else { + var xDistance = (Math.abs(range.minX) + Math.abs(range.maxX)) * 1.1; + var yDistance = (Math.abs(range.minY) + Math.abs(range.maxY)) * 1.1; + + var xZoomLevel = this.frame.canvas.clientWidth / xDistance; + var yZoomLevel = this.frame.canvas.clientHeight / yDistance; + + zoomLevel = (xZoomLevel <= yZoomLevel) ? xZoomLevel : yZoomLevel; + } + + if (zoomLevel > 1.0) { + zoomLevel = 1.0; + } + + this.pinch.mousewheelScale = zoomLevel; + this._setScale(zoomLevel); + this._centerGraph(range); + if (disableStart == false || disableStart === undefined) { + this.moving = true; + this.start(); + } +}; + + +/** + * Update the this.nodeIndices with the most recent node index list + * @private + */ +Graph.prototype._updateNodeIndexList = function() { + this._clearNodeIndexList(); + for (var idx in this.nodes) { + if (this.nodes.hasOwnProperty(idx)) { + this.nodeIndices.push(idx); + } + } +}; + + +/** + * Set nodes and edges, and optionally options as well. + * + * @param {Object} data Object containing parameters: + * {Array | DataSet | DataView} [nodes] Array with nodes + * {Array | DataSet | DataView} [edges] Array with edges + * {String} [dot] String containing data in DOT format + * {Options} [options] Object with options + * @param {Boolean} [disableStart] | optional: disable the calling of the start function. + */ +Graph.prototype.setData = function(data, disableStart) { + if (disableStart === undefined) { + disableStart = false; + } + + if (data && data.dot && (data.nodes || data.edges)) { + throw new SyntaxError('Data must contain either parameter "dot" or ' + + ' parameter pair "nodes" and "edges", but not both.'); + } + + // set options + this.setOptions(data && data.options); + + // set all data + if (data && data.dot) { + // parse DOT file + if(data && data.dot) { + var dotData = vis.util.DOTToGraph(data.dot); + this.setData(dotData); + return; + } + } + else { + this._setNodes(data && data.nodes); + this._setEdges(data && data.edges); + } + + this._putDataInSector(); + + if (!disableStart) { + // find a stable position or start animating to a stable position + if (this.stabilize) { + this._doStabilize(); + } + this.start(); + } +}; + +/** + * Set options + * @param {Object} options + */ +Graph.prototype.setOptions = function (options) { + if (options) { + var prop; + // retrieve parameter values + if (options.width !== undefined) {this.width = options.width;} + if (options.height !== undefined) {this.height = options.height;} + if (options.stabilize !== undefined) {this.stabilize = options.stabilize;} + if (options.selectable !== undefined) {this.selectable = options.selectable;} + if (options.smoothCurves !== undefined) {this.constants.smoothCurves = options.smoothCurves;} + + if (options.onAdd) { + this.triggerFunctions.add = options.onAdd; + } + + if (options.onEdit) { + this.triggerFunctions.edit = options.onEdit; + } + + if (options.onConnect) { + this.triggerFunctions.connect = options.onConnect; + } + + if (options.onDelete) { + this.triggerFunctions.delete = options.onDelete; + } + + if (options.physics) { + if (options.physics.barnesHut) { + this.constants.physics.barnesHut.enabled = true; + for (prop in options.physics.barnesHut) { + if (options.physics.barnesHut.hasOwnProperty(prop)) { + this.constants.physics.barnesHut[prop] = options.physics.barnesHut[prop]; + } + } + } + + if (options.physics.repulsion) { + this.constants.physics.barnesHut.enabled = false; + for (prop in options.physics.repulsion) { + if (options.physics.repulsion.hasOwnProperty(prop)) { + this.constants.physics.repulsion[prop] = options.physics.repulsion[prop]; + } + } + } + } + + if (options.hierarchicalLayout) { + this.constants.hierarchicalLayout.enabled = true; + for (prop in options.hierarchicalLayout) { + if (options.hierarchicalLayout.hasOwnProperty(prop)) { + this.constants.hierarchicalLayout[prop] = options.hierarchicalLayout[prop]; + } + } + } + else if (options.hierarchicalLayout !== undefined) { + this.constants.hierarchicalLayout.enabled = false; + } + + if (options.clustering) { + this.constants.clustering.enabled = true; + for (prop in options.clustering) { + if (options.clustering.hasOwnProperty(prop)) { + this.constants.clustering[prop] = options.clustering[prop]; + } + } + } + else if (options.clustering !== undefined) { + this.constants.clustering.enabled = false; + } + + if (options.navigation) { + this.constants.navigation.enabled = true; + for (prop in options.navigation) { + if (options.navigation.hasOwnProperty(prop)) { + this.constants.navigation[prop] = options.navigation[prop]; + } + } + } + else if (options.navigation !== undefined) { + this.constants.navigation.enabled = false; + } + + if (options.keyboard) { + this.constants.keyboard.enabled = true; + for (prop in options.keyboard) { + if (options.keyboard.hasOwnProperty(prop)) { + this.constants.keyboard[prop] = options.keyboard[prop]; + } + } + } + else if (options.keyboard !== undefined) { + this.constants.keyboard.enabled = false; + } + + if (options.dataManipulation) { + this.constants.dataManipulation.enabled = true; + for (prop in options.dataManipulation) { + if (options.dataManipulation.hasOwnProperty(prop)) { + this.constants.dataManipulation[prop] = options.dataManipulation[prop]; + } + } + } + else if (options.dataManipulation !== undefined) { + this.constants.dataManipulation.enabled = false; + } + + // TODO: work out these options and document them + if (options.edges) { + for (prop in options.edges) { + if (options.edges.hasOwnProperty(prop)) { + this.constants.edges[prop] = options.edges[prop]; + } + } + + if (!options.edges.fontColor) { + this.constants.edges.fontColor = options.edges.color; + } + + // Added to support dashed lines + // David Jordan + // 2012-08-08 + if (options.edges.dash) { + if (options.edges.dash.length !== undefined) { + this.constants.edges.dash.length = options.edges.dash.length; + } + if (options.edges.dash.gap !== undefined) { + this.constants.edges.dash.gap = options.edges.dash.gap; + } + if (options.edges.dash.altLength !== undefined) { + this.constants.edges.dash.altLength = options.edges.dash.altLength; + } + } + } + + if (options.nodes) { + for (prop in options.nodes) { + if (options.nodes.hasOwnProperty(prop)) { + this.constants.nodes[prop] = options.nodes[prop]; + } + } + + if (options.nodes.color) { + this.constants.nodes.color = Node.parseColor(options.nodes.color); + } + + /* + if (options.nodes.widthMin) this.constants.nodes.radiusMin = options.nodes.widthMin; + if (options.nodes.widthMax) this.constants.nodes.radiusMax = options.nodes.widthMax; + */ + } + if (options.groups) { + for (var groupname in options.groups) { + if (options.groups.hasOwnProperty(groupname)) { + var group = options.groups[groupname]; + this.groups.add(groupname, group); + } + } + } + } + + + // (Re)loading the mixins that can be enabled or disabled in the options. + // load the force calculation functions, grouped under the physics system. + this._loadPhysicsSystem(); + // load the navigation system. + this._loadNavigationControls(); + // load the data manipulation system + this._loadManipulationSystem(); + // configure the smooth curves + this._configureSmoothCurves(); + + + // bind keys. If disabled, this will not do anything; + this._createKeyBinds(); + + this.setSize(this.width, this.height); + this._setTranslation(this.frame.clientWidth / 2, this.frame.clientHeight / 2); + this._setScale(1); + this._redraw(); +}; + +/** + * Create the main frame for the Graph. + * This function is executed once when a Graph object is created. The frame + * contains a canvas, and this canvas contains all objects like the axis and + * nodes. + * @private + */ +Graph.prototype._create = function () { + // remove all elements from the container element. + while (this.containerElement.hasChildNodes()) { + this.containerElement.removeChild(this.containerElement.firstChild); + } + + this.frame = document.createElement('div'); + this.frame.className = 'graph-frame'; + this.frame.style.position = 'relative'; + this.frame.style.overflow = 'hidden'; + this.frame.style.zIndex = "1"; + + // create the graph canvas (HTML canvas element) + this.frame.canvas = document.createElement( 'canvas' ); + this.frame.canvas.style.position = 'relative'; + this.frame.appendChild(this.frame.canvas); + if (!this.frame.canvas.getContext) { + var noCanvas = document.createElement( 'DIV' ); + noCanvas.style.color = 'red'; + noCanvas.style.fontWeight = 'bold' ; + noCanvas.style.padding = '10px'; + noCanvas.innerHTML = 'Error: your browser does not support HTML canvas'; + this.frame.canvas.appendChild(noCanvas); + } + + var me = this; + this.drag = {}; + this.pinch = {}; + this.hammer = Hammer(this.frame.canvas, { + prevent_default: true + }); + this.hammer.on('tap', me._onTap.bind(me) ); + this.hammer.on('doubletap', me._onDoubleTap.bind(me) ); + this.hammer.on('hold', me._onHold.bind(me) ); + this.hammer.on('pinch', me._onPinch.bind(me) ); + this.hammer.on('touch', me._onTouch.bind(me) ); + this.hammer.on('dragstart', me._onDragStart.bind(me) ); + this.hammer.on('drag', me._onDrag.bind(me) ); + this.hammer.on('dragend', me._onDragEnd.bind(me) ); + this.hammer.on('release', me._onRelease.bind(me) ); + this.hammer.on('mousewheel',me._onMouseWheel.bind(me) ); + this.hammer.on('DOMMouseScroll',me._onMouseWheel.bind(me) ); // for FF + this.hammer.on('mousemove', me._onMouseMoveTitle.bind(me) ); + + // add the frame to the container element + this.containerElement.appendChild(this.frame); + +}; + + +/** + * Binding the keys for keyboard navigation. These functions are defined in the NavigationMixin + * @private + */ +Graph.prototype._createKeyBinds = function() { + var me = this; + this.mousetrap = mousetrap; + + this.mousetrap.reset(); + + if (this.constants.keyboard.enabled == true) { + this.mousetrap.bind("up", this._moveUp.bind(me) , "keydown"); + this.mousetrap.bind("up", this._yStopMoving.bind(me), "keyup"); + this.mousetrap.bind("down", this._moveDown.bind(me) , "keydown"); + this.mousetrap.bind("down", this._yStopMoving.bind(me), "keyup"); + this.mousetrap.bind("left", this._moveLeft.bind(me) , "keydown"); + this.mousetrap.bind("left", this._xStopMoving.bind(me), "keyup"); + this.mousetrap.bind("right",this._moveRight.bind(me), "keydown"); + this.mousetrap.bind("right",this._xStopMoving.bind(me), "keyup"); + this.mousetrap.bind("=", this._zoomIn.bind(me), "keydown"); + this.mousetrap.bind("=", this._stopZoom.bind(me), "keyup"); + this.mousetrap.bind("-", this._zoomOut.bind(me), "keydown"); + this.mousetrap.bind("-", this._stopZoom.bind(me), "keyup"); + this.mousetrap.bind("[", this._zoomIn.bind(me), "keydown"); + this.mousetrap.bind("[", this._stopZoom.bind(me), "keyup"); + this.mousetrap.bind("]", this._zoomOut.bind(me), "keydown"); + this.mousetrap.bind("]", this._stopZoom.bind(me), "keyup"); + this.mousetrap.bind("pageup",this._zoomIn.bind(me), "keydown"); + this.mousetrap.bind("pageup",this._stopZoom.bind(me), "keyup"); + this.mousetrap.bind("pagedown",this._zoomOut.bind(me),"keydown"); + this.mousetrap.bind("pagedown",this._stopZoom.bind(me), "keyup"); + } + + if (this.constants.dataManipulation.enabled == true) { + this.mousetrap.bind("escape",this._createManipulatorBar.bind(me)); + this.mousetrap.bind("del",this._deleteSelected.bind(me)); + } +}; + +/** + * Get the pointer location from a touch location + * @param {{pageX: Number, pageY: Number}} touch + * @return {{x: Number, y: Number}} pointer + * @private + */ +Graph.prototype._getPointer = function (touch) { + return { + x: touch.pageX - vis.util.getAbsoluteLeft(this.frame.canvas), + y: touch.pageY - vis.util.getAbsoluteTop(this.frame.canvas) + }; +}; + +/** + * On start of a touch gesture, store the pointer + * @param event + * @private + */ +Graph.prototype._onTouch = function (event) { + this.drag.pointer = this._getPointer(event.gesture.center); + this.drag.pinched = false; + this.pinch.scale = this._getScale(); + + this._handleTouch(this.drag.pointer); +}; + +/** + * handle drag start event + * @private + */ +Graph.prototype._onDragStart = function () { + this._handleDragStart(); +}; + + +/** + * This function is called by _onDragStart. + * It is separated out because we can then overload it for the datamanipulation system. + * + * @private + */ +Graph.prototype._handleDragStart = function() { + var drag = this.drag; + var node = this._getNodeAt(drag.pointer); + // note: drag.pointer is set in _onTouch to get the initial touch location + + drag.dragging = true; + drag.selection = []; + drag.translation = this._getTranslation(); + drag.nodeId = null; + + if (node != null) { + drag.nodeId = node.id; + // select the clicked node if not yet selected + if (!node.isSelected()) { + this._selectObject(node,false); + } + + // create an array with the selected nodes and their original location and status + for (var objectId in this.selectionObj) { + if (this.selectionObj.hasOwnProperty(objectId)) { + var object = this.selectionObj[objectId]; + if (object instanceof Node) { + var s = { + id: object.id, + node: object, + + // store original x, y, xFixed and yFixed, make the node temporarily Fixed + x: object.x, + y: object.y, + xFixed: object.xFixed, + yFixed: object.yFixed + }; + + object.xFixed = true; + object.yFixed = true; + + drag.selection.push(s); + } + } + } + } +}; + + +/** + * handle drag event + * @private + */ +Graph.prototype._onDrag = function (event) { + this._handleOnDrag(event) +}; + + +/** + * This function is called by _onDrag. + * It is separated out because we can then overload it for the datamanipulation system. + * + * @private + */ +Graph.prototype._handleOnDrag = function(event) { + if (this.drag.pinched) { + return; + } + + var pointer = this._getPointer(event.gesture.center); + + var me = this, + drag = this.drag, + selection = drag.selection; + if (selection && selection.length) { + // calculate delta's and new location + var deltaX = pointer.x - drag.pointer.x, + deltaY = pointer.y - drag.pointer.y; + + // update position of all selected nodes + selection.forEach(function (s) { + var node = s.node; + + if (!s.xFixed) { + node.x = me._canvasToX(me._xToCanvas(s.x) + deltaX); + } + + if (!s.yFixed) { + node.y = me._canvasToY(me._yToCanvas(s.y) + deltaY); + } + }); + + // start _animationStep if not yet running + if (!this.moving) { + this.moving = true; + this.start(); + } + } + else { + // move the graph + var diffX = pointer.x - this.drag.pointer.x; + var diffY = pointer.y - this.drag.pointer.y; + + this._setTranslation( + this.drag.translation.x + diffX, + this.drag.translation.y + diffY); + this._redraw(); + this.moved = true; + } +}; + +/** + * handle drag start event + * @private + */ +Graph.prototype._onDragEnd = function () { + this.drag.dragging = false; + var selection = this.drag.selection; + if (selection) { + selection.forEach(function (s) { + // restore original xFixed and yFixed + s.node.xFixed = s.xFixed; + s.node.yFixed = s.yFixed; + }); + } +}; + +/** + * handle tap/click event: select/unselect a node + * @private + */ +Graph.prototype._onTap = function (event) { + var pointer = this._getPointer(event.gesture.center); + this.pointerPosition = pointer; + this._handleTap(pointer); + +}; + + +/** + * handle doubletap event + * @private + */ +Graph.prototype._onDoubleTap = function (event) { + var pointer = this._getPointer(event.gesture.center); + this._handleDoubleTap(pointer); + +}; + + +/** + * handle long tap event: multi select nodes + * @private + */ +Graph.prototype._onHold = function (event) { + var pointer = this._getPointer(event.gesture.center); + this.pointerPosition = pointer; + this._handleOnHold(pointer); +}; + +/** + * handle the release of the screen + * + * @private + */ +Graph.prototype._onRelease = function (event) { + var pointer = this._getPointer(event.gesture.center); + this._handleOnRelease(pointer); +}; + +/** + * Handle pinch event + * @param event + * @private + */ +Graph.prototype._onPinch = function (event) { + var pointer = this._getPointer(event.gesture.center); + + this.drag.pinched = true; + if (!('scale' in this.pinch)) { + this.pinch.scale = 1; + } + + // TODO: enabled moving while pinching? + var scale = this.pinch.scale * event.gesture.scale; + this._zoom(scale, pointer) +}; + +/** + * Zoom the graph in or out + * @param {Number} scale a number around 1, and between 0.01 and 10 + * @param {{x: Number, y: Number}} pointer Position on screen + * @return {Number} appliedScale scale is limited within the boundaries + * @private + */ +Graph.prototype._zoom = function(scale, pointer) { + var scaleOld = this._getScale(); + if (scale < 0.00001) { + scale = 0.00001; + } + if (scale > 10) { + scale = 10; + } +// + this.frame.canvas.clientHeight / 2 + var translation = this._getTranslation(); + + var scaleFrac = scale / scaleOld; + var tx = (1 - scaleFrac) * pointer.x + translation.x * scaleFrac; + var ty = (1 - scaleFrac) * pointer.y + translation.y * scaleFrac; + + this.areaCenter = {"x" : this._canvasToX(pointer.x), + "y" : this._canvasToY(pointer.y)}; + + this.pinch.mousewheelScale = scale; + this._setScale(scale); + this._setTranslation(tx, ty); + this.updateClustersDefault(); + this._redraw(); + + return scale; +}; + + +/** + * Event handler for mouse wheel event, used to zoom the timeline + * See http://adomas.org/javascript-mouse-wheel/ + * https://github.com/EightMedia/hammer.js/issues/256 + * @param {MouseEvent} event + * @private + */ +Graph.prototype._onMouseWheel = function(event) { + // retrieve delta + var delta = 0; + if (event.wheelDelta) { /* IE/Opera. */ + delta = event.wheelDelta/120; + } else if (event.detail) { /* Mozilla case. */ + // In Mozilla, sign of delta is different than in IE. + // Also, delta is multiple of 3. + delta = -event.detail/3; + } + + // If delta is nonzero, handle it. + // Basically, delta is now positive if wheel was scrolled up, + // and negative, if wheel was scrolled down. + if (delta) { + if (!('mousewheelScale' in this.pinch)) { + this.pinch.mousewheelScale = 1; + } + + // calculate the new scale + var scale = this.pinch.mousewheelScale; + var zoom = delta / 10; + if (delta < 0) { + zoom = zoom / (1 - zoom); + } + scale *= (1 + zoom); + + // calculate the pointer location + var gesture = util.fakeGesture(this, event); + var pointer = this._getPointer(gesture.center); + + // apply the new scale + this._zoom(scale, pointer); + + // store the new, applied scale -- this is now done in _zoom +// this.pinch.mousewheelScale = scale; + } + + // Prevent default actions caused by mouse wheel. + event.preventDefault(); +}; + + +/** + * Mouse move handler for checking whether the title moves over a node with a title. + * @param {Event} event + * @private + */ +Graph.prototype._onMouseMoveTitle = function (event) { + var gesture = util.fakeGesture(this, event); + var pointer = this._getPointer(gesture.center); + + // check if the previously selected node is still selected + if (this.popupNode) { + this._checkHidePopup(pointer); + } + + // start a timeout that will check if the mouse is positioned above + // an element + var me = this; + var checkShow = function() { + me._checkShowPopup(pointer); + }; + if (this.popupTimer) { + clearInterval(this.popupTimer); // stop any running calculationTimer + } + if (!this.drag.dragging) { + this.popupTimer = setTimeout(checkShow, 300); + } +}; + +/** + * Check if there is an element on the given position in the graph + * (a node or edge). If so, and if this element has a title, + * show a popup window with its title. + * + * @param {{x:Number, y:Number}} pointer + * @private + */ +Graph.prototype._checkShowPopup = function (pointer) { + var obj = { + left: this._canvasToX(pointer.x), + top: this._canvasToY(pointer.y), + right: this._canvasToX(pointer.x), + bottom: this._canvasToY(pointer.y) + }; + + var id; + var lastPopupNode = this.popupNode; + + if (this.popupNode == undefined) { + // search the nodes for overlap, select the top one in case of multiple nodes + var nodes = this.nodes; + for (id in nodes) { + if (nodes.hasOwnProperty(id)) { + var node = nodes[id]; + if (node.getTitle() !== undefined && node.isOverlappingWith(obj)) { + this.popupNode = node; + break; + } + } + } + } + + if (this.popupNode === undefined) { + // search the edges for overlap + var edges = this.edges; + for (id in edges) { + if (edges.hasOwnProperty(id)) { + var edge = edges[id]; + if (edge.connected && (edge.getTitle() !== undefined) && + edge.isOverlappingWith(obj)) { + this.popupNode = edge; + break; + } + } + } + } + + if (this.popupNode) { + // show popup message window + if (this.popupNode != lastPopupNode) { + var me = this; + if (!me.popup) { + me.popup = new Popup(me.frame); + } + + // adjust a small offset such that the mouse cursor is located in the + // bottom left location of the popup, and you can easily move over the + // popup area + me.popup.setPosition(pointer.x - 3, pointer.y - 3); + me.popup.setText(me.popupNode.getTitle()); + me.popup.show(); + } + } + else { + if (this.popup) { + this.popup.hide(); + } + } +}; + + +/** + * Check if the popup must be hided, which is the case when the mouse is no + * longer hovering on the object + * @param {{x:Number, y:Number}} pointer + * @private + */ +Graph.prototype._checkHidePopup = function (pointer) { + if (!this.popupNode || !this._getNodeAt(pointer) ) { + this.popupNode = undefined; + if (this.popup) { + this.popup.hide(); + } + } +}; + + +/** + * Set a new size for the graph + * @param {string} width Width in pixels or percentage (for example '800px' + * or '50%') + * @param {string} height Height in pixels or percentage (for example '400px' + * or '30%') + */ +Graph.prototype.setSize = function(width, height) { + this.frame.style.width = width; + this.frame.style.height = height; + + this.frame.canvas.style.width = '100%'; + this.frame.canvas.style.height = '100%'; + + this.frame.canvas.width = this.frame.canvas.clientWidth; + this.frame.canvas.height = this.frame.canvas.clientHeight; + + if (this.manipulationDiv !== undefined) { + this.manipulationDiv.style.width = this.frame.canvas.clientWidth; + } + + this.emit('frameResize', {width:this.frame.canvas.width,height:this.frame.canvas.height}); +}; + +/** + * Set a data set with nodes for the graph + * @param {Array | DataSet | DataView} nodes The data containing the nodes. + * @private + */ +Graph.prototype._setNodes = function(nodes) { + var oldNodesData = this.nodesData; + + if (nodes instanceof DataSet || nodes instanceof DataView) { + this.nodesData = nodes; + } + else if (nodes instanceof Array) { + this.nodesData = new DataSet(); + this.nodesData.add(nodes); + } + else if (!nodes) { + this.nodesData = new DataSet(); + } + else { + throw new TypeError('Array or DataSet expected'); + } + + if (oldNodesData) { + // unsubscribe from old dataset + util.forEach(this.nodesListeners, function (callback, event) { + oldNodesData.off(event, callback); + }); + } + + // remove drawn nodes + this.nodes = {}; + + if (this.nodesData) { + // subscribe to new dataset + var me = this; + util.forEach(this.nodesListeners, function (callback, event) { + me.nodesData.on(event, callback); + }); + + // draw all new nodes + var ids = this.nodesData.getIds(); + this._addNodes(ids); + } + this._updateSelection(); +}; + +/** + * Add nodes + * @param {Number[] | String[]} ids + * @private + */ +Graph.prototype._addNodes = function(ids) { + var id; + for (var i = 0, len = ids.length; i < len; i++) { + id = ids[i]; + var data = this.nodesData.get(id); + var node = new Node(data, this.images, this.groups, this.constants); + this.nodes[id] = node; // note: this may replace an existing node + + if ((node.xFixed == false || node.yFixed == false) && this.createNodeOnClick != true) { + var radius = 10 * 0.1*ids.length; + var angle = 2 * Math.PI * Math.random(); + if (node.xFixed == false) {node.x = radius * Math.cos(angle);} + if (node.yFixed == false) {node.y = radius * Math.sin(angle);} + + // note: no not use node.isMoving() here, as that gives the current + // velocity of the node, which is zero after creation of the node. + this.moving = true; + } + } + this._updateNodeIndexList(); + this._updateCalculationNodes(); + this._reconnectEdges(); + this._updateValueRange(this.nodes); + this.updateLabels(); +}; + +/** + * Update existing nodes, or create them when not yet existing + * @param {Number[] | String[]} ids + * @private + */ +Graph.prototype._updateNodes = function(ids) { + var nodes = this.nodes, + nodesData = this.nodesData; + for (var i = 0, len = ids.length; i < len; i++) { + var id = ids[i]; + var node = nodes[id]; + var data = nodesData.get(id); + if (node) { + // update node + node.setProperties(data, this.constants); + } + else { + // create node + node = new Node(properties, this.images, this.groups, this.constants); + nodes[id] = node; + + if (!node.isFixed()) { + this.moving = true; + } + } + } + this._updateNodeIndexList(); + this._reconnectEdges(); + this._updateValueRange(nodes); +}; + +/** + * Remove existing nodes. If nodes do not exist, the method will just ignore it. + * @param {Number[] | String[]} ids + * @private + */ +Graph.prototype._removeNodes = function(ids) { + var nodes = this.nodes; + for (var i = 0, len = ids.length; i < len; i++) { + var id = ids[i]; + delete nodes[id]; + } + this._updateNodeIndexList(); + this._reconnectEdges(); + this._updateSelection(); + this._updateValueRange(nodes); +}; + +/** + * Load edges by reading the data table + * @param {Array | DataSet | DataView} edges The data containing the edges. + * @private + * @private + */ +Graph.prototype._setEdges = function(edges) { + var oldEdgesData = this.edgesData; + + if (edges instanceof DataSet || edges instanceof DataView) { + this.edgesData = edges; + } + else if (edges instanceof Array) { + this.edgesData = new DataSet(); + this.edgesData.add(edges); + } + else if (!edges) { + this.edgesData = new DataSet(); + } + else { + throw new TypeError('Array or DataSet expected'); + } + + if (oldEdgesData) { + // unsubscribe from old dataset + util.forEach(this.edgesListeners, function (callback, event) { + oldEdgesData.off(event, callback); + }); + } + + // remove drawn edges + this.edges = {}; + + if (this.edgesData) { + // subscribe to new dataset + var me = this; + util.forEach(this.edgesListeners, function (callback, event) { + me.edgesData.on(event, callback); + }); + + // draw all new nodes + var ids = this.edgesData.getIds(); + this._addEdges(ids); + } + + this._reconnectEdges(); +}; + +/** + * Add edges + * @param {Number[] | String[]} ids + * @private + */ +Graph.prototype._addEdges = function (ids) { + var edges = this.edges, + edgesData = this.edgesData; + + for (var i = 0, len = ids.length; i < len; i++) { + var id = ids[i]; + + var oldEdge = edges[id]; + if (oldEdge) { + oldEdge.disconnect(); + } + + var data = edgesData.get(id, {"showInternalIds" : true}); + edges[id] = new Edge(data, this, this.constants); + } + + this.moving = true; + this._updateValueRange(edges); + this._createBezierNodes(); + this._updateCalculationNodes(); +}; + +/** + * Update existing edges, or create them when not yet existing + * @param {Number[] | String[]} ids + * @private + */ +Graph.prototype._updateEdges = function (ids) { + var edges = this.edges, + edgesData = this.edgesData; + for (var i = 0, len = ids.length; i < len; i++) { + var id = ids[i]; + + var data = edgesData.get(id); + var edge = edges[id]; + if (edge) { + // update edge + edge.disconnect(); + edge.setProperties(data, this.constants); + edge.connect(); + } + else { + // create edge + edge = new Edge(data, this, this.constants); + this.edges[id] = edge; + } + } + + this._createBezierNodes(); + this.moving = true; + this._updateValueRange(edges); +}; + +/** + * Remove existing edges. Non existing ids will be ignored + * @param {Number[] | String[]} ids + * @private + */ +Graph.prototype._removeEdges = function (ids) { + var edges = this.edges; + for (var i = 0, len = ids.length; i < len; i++) { + var id = ids[i]; + var edge = edges[id]; + if (edge) { + if (edge.via != null) { + delete this.sectors['support']['nodes'][edge.via.id]; + } + edge.disconnect(); + delete edges[id]; + } + } + + this.moving = true; + this._updateValueRange(edges); + this._updateCalculationNodes(); +}; + +/** + * Reconnect all edges + * @private + */ +Graph.prototype._reconnectEdges = function() { + var id, + nodes = this.nodes, + edges = this.edges; + for (id in nodes) { + if (nodes.hasOwnProperty(id)) { + nodes[id].edges = []; + } + } + + for (id in edges) { + if (edges.hasOwnProperty(id)) { + var edge = edges[id]; + edge.from = null; + edge.to = null; + edge.connect(); + } + } +}; + +/** + * Update the values of all object in the given array according to the current + * value range of the objects in the array. + * @param {Object} obj An object containing a set of Edges or Nodes + * The objects must have a method getValue() and + * setValueRange(min, max). + * @private + */ +Graph.prototype._updateValueRange = function(obj) { + var id; + + // determine the range of the objects + var valueMin = undefined; + var valueMax = undefined; + for (id in obj) { + if (obj.hasOwnProperty(id)) { + var value = obj[id].getValue(); + if (value !== undefined) { + valueMin = (valueMin === undefined) ? value : Math.min(value, valueMin); + valueMax = (valueMax === undefined) ? value : Math.max(value, valueMax); + } + } + } + + // adjust the range of all objects + if (valueMin !== undefined && valueMax !== undefined) { + for (id in obj) { + if (obj.hasOwnProperty(id)) { + obj[id].setValueRange(valueMin, valueMax); + } + } + } +}; + +/** + * Redraw the graph with the current data + * chart will be resized too. + */ +Graph.prototype.redraw = function() { + this.setSize(this.width, this.height); + + this._redraw(); +}; + +/** + * Redraw the graph with the current data + * @private + */ +Graph.prototype._redraw = function() { + var ctx = this.frame.canvas.getContext('2d'); + // clear the canvas + var w = this.frame.canvas.width; + var h = this.frame.canvas.height; + ctx.clearRect(0, 0, w, h); + + // set scaling and translation + ctx.save(); + ctx.translate(this.translation.x, this.translation.y); + ctx.scale(this.scale, this.scale); + + this.canvasTopLeft = { + "x": this._canvasToX(0), + "y": this._canvasToY(0) + }; + this.canvasBottomRight = { + "x": this._canvasToX(this.frame.canvas.clientWidth), + "y": this._canvasToY(this.frame.canvas.clientHeight) + }; + + this._doInAllSectors("_drawAllSectorNodes",ctx); + this._doInAllSectors("_drawEdges",ctx); + this._doInAllSectors("_drawNodes",ctx,false); + +// this._doInSupportSector("_drawNodes",ctx,true); +// this._drawTree(ctx,"#F00F0F"); + + // restore original scaling and translation + ctx.restore(); +}; + +/** + * Set the translation of the graph + * @param {Number} offsetX Horizontal offset + * @param {Number} offsetY Vertical offset + * @private + */ +Graph.prototype._setTranslation = function(offsetX, offsetY) { + if (this.translation === undefined) { + this.translation = { + x: 0, + y: 0 + }; + } + + if (offsetX !== undefined) { + this.translation.x = offsetX; + } + if (offsetY !== undefined) { + this.translation.y = offsetY; + } +}; + +/** + * Get the translation of the graph + * @return {Object} translation An object with parameters x and y, both a number + * @private + */ +Graph.prototype._getTranslation = function() { + return { + x: this.translation.x, + y: this.translation.y + }; +}; + +/** + * Scale the graph + * @param {Number} scale Scaling factor 1.0 is unscaled + * @private + */ +Graph.prototype._setScale = function(scale) { + this.scale = scale; +}; + +/** + * Get the current scale of the graph + * @return {Number} scale Scaling factor 1.0 is unscaled + * @private + */ +Graph.prototype._getScale = function() { + return this.scale; +}; + +/** + * Convert a horizontal point on the HTML canvas to the x-value of the model + * @param {number} x + * @returns {number} + * @private + */ +Graph.prototype._canvasToX = function(x) { + return (x - this.translation.x) / this.scale; +}; + +/** + * Convert an x-value in the model to a horizontal point on the HTML canvas + * @param {number} x + * @returns {number} + * @private + */ +Graph.prototype._xToCanvas = function(x) { + return x * this.scale + this.translation.x; +}; + +/** + * Convert a vertical point on the HTML canvas to the y-value of the model + * @param {number} y + * @returns {number} + * @private + */ +Graph.prototype._canvasToY = function(y) { + return (y - this.translation.y) / this.scale; +}; + +/** + * Convert an y-value in the model to a vertical point on the HTML canvas + * @param {number} y + * @returns {number} + * @private + */ +Graph.prototype._yToCanvas = function(y) { + return y * this.scale + this.translation.y ; +}; + +/** + * Redraw all nodes + * The 2d context of a HTML canvas can be retrieved by canvas.getContext('2d'); + * @param {CanvasRenderingContext2D} ctx + * @param {Boolean} [alwaysShow] + * @private + */ +Graph.prototype._drawNodes = function(ctx,alwaysShow) { + if (alwaysShow === undefined) { + alwaysShow = false; + } + + // first draw the unselected nodes + var nodes = this.nodes; + var selected = []; + + for (var id in nodes) { + if (nodes.hasOwnProperty(id)) { + nodes[id].setScaleAndPos(this.scale,this.canvasTopLeft,this.canvasBottomRight); + if (nodes[id].isSelected()) { + selected.push(id); + } + else { + if (nodes[id].inArea() || alwaysShow) { + nodes[id].draw(ctx); + } + } + } + } + + // draw the selected nodes on top + for (var s = 0, sMax = selected.length; s < sMax; s++) { + if (nodes[selected[s]].inArea() || alwaysShow) { + nodes[selected[s]].draw(ctx); + } + } +}; + +/** + * Redraw all edges + * The 2d context of a HTML canvas can be retrieved by canvas.getContext('2d'); + * @param {CanvasRenderingContext2D} ctx + * @private + */ +Graph.prototype._drawEdges = function(ctx) { + var edges = this.edges; + for (var id in edges) { + if (edges.hasOwnProperty(id)) { + var edge = edges[id]; + edge.setScale(this.scale); + if (edge.connected) { + edges[id].draw(ctx); + } + } + } +}; + +/** + * Find a stable position for all nodes + * @private + */ +Graph.prototype._doStabilize = function() { + // find stable position + var count = 0; + while (this.moving && count < this.constants.maxIterations) { + this._physicsTick(); + count++; + } + + this.zoomToFit(false,true); +}; + + + + +/** + * Check if any of the nodes is still moving + * @param {number} vmin the minimum velocity considered as 'moving' + * @return {boolean} true if moving, false if non of the nodes is moving + * @private + */ +Graph.prototype._isMoving = function(vmin) { + var nodes = this.nodes; + for (var id in nodes) { + if (nodes.hasOwnProperty(id) && nodes[id].isMoving(vmin)) { + return true; + } + } + return false; +}; + + +/** + * /** + * Perform one discrete step for all nodes + * + * @private + */ +Graph.prototype._discreteStepNodes = function() { + var interval = 0.65; + var nodes = this.nodes; + var nodeId; + + if (this.constants.maxVelocity > 0) { + for (nodeId in nodes) { + if (nodes.hasOwnProperty(nodeId)) { + nodes[nodeId].discreteStepLimited(interval, this.constants.maxVelocity); + } + } + } + else { + for (nodeId in nodes) { + if (nodes.hasOwnProperty(nodeId)) { + nodes[nodeId].discreteStep(interval); + } + } + } + var vminCorrected = this.constants.minVelocity / Math.max(this.scale,0.05); + if (vminCorrected > 0.5*this.constants.maxVelocity) { + this.moving = true; + } + else { + this.moving = this._isMoving(vminCorrected); + } +}; + + +Graph.prototype._physicsTick = function() { + if (!this.freezeSimulation) { + if (this.moving) { + this._doInAllActiveSectors("_initializeForceCalculation"); + if (this.constants.smoothCurves) { + this._doInSupportSector("_discreteStepNodes"); + } + this._doInAllActiveSectors("_discreteStepNodes"); + this._findCenter(this._getRange()) + } + } +}; + + +/** + * This function runs one step of the animation. It calls an x amount of physics ticks and one render tick. + * It reschedules itself at the beginning of the function + * + * @private + */ +Graph.prototype._animationStep = function() { + // reset the timer so a new scheduled animation step can be set + this.timer = undefined; + // handle the keyboad movement + this._handleNavigation(); + + // this schedules a new animation step + this.start(); + + // start the physics simulation + var calculationTime = Date.now(); + var maxSteps = 1; + this._physicsTick(); + var timeRequired = Date.now() - calculationTime; + while (timeRequired < (this.renderTimestep - this.renderTime) && maxSteps < this.maxRenderSteps) { + this._physicsTick(); + timeRequired = Date.now() - calculationTime; + maxSteps++; + + } + + // start the rendering process + var renderTime = Date.now(); + this._redraw(); + this.renderTime = Date.now() - renderTime; +}; + + +/** + * Schedule a animation step with the refreshrate interval. + * + * @poram {Boolean} runCalculationStep + */ +Graph.prototype.start = function() { + if (this.moving || this.xIncrement != 0 || this.yIncrement != 0 || this.zoomIncrement != 0) { + if (!this.timer) { + this.timer = window.setTimeout(this._animationStep.bind(this), this.renderTimestep); // wait this.renderTimeStep milliseconds and perform the animation step function + } + } + else { + this._redraw(); + } +}; + + +/** + * Move the graph according to the keyboard presses. + * + * @private + */ +Graph.prototype._handleNavigation = function() { + if (this.xIncrement != 0 || this.yIncrement != 0) { + var translation = this._getTranslation(); + this._setTranslation(translation.x+this.xIncrement, translation.y+this.yIncrement); + } + if (this.zoomIncrement != 0) { + var center = { + x: this.frame.canvas.clientWidth / 2, + y: this.frame.canvas.clientHeight / 2 + }; + this._zoom(this.scale*(1 + this.zoomIncrement), center); + } +}; + + +/** + * Freeze the _animationStep + */ +Graph.prototype.toggleFreeze = function() { + if (this.freezeSimulation == false) { + this.freezeSimulation = true; + } + else { + this.freezeSimulation = false; + this.start(); + } +}; + + + +Graph.prototype._configureSmoothCurves = function(disableStart) { + if (disableStart === undefined) { + disableStart = true; + } + + if (this.constants.smoothCurves == true) { + this._createBezierNodes(); + } + else { + // delete the support nodes + this.sectors['support']['nodes'] = {}; + for (var edgeId in this.edges) { + if (this.edges.hasOwnProperty(edgeId)) { + this.edges[edgeId].smooth = false; + this.edges[edgeId].via = null; + } + } + } + this._updateCalculationNodes(); + if (!disableStart) { + this.moving = true; + this.start(); + } +}; + +Graph.prototype._createBezierNodes = function() { + if (this.constants.smoothCurves == true) { + for (var edgeId in this.edges) { + if (this.edges.hasOwnProperty(edgeId)) { + var edge = this.edges[edgeId]; + if (edge.via == null) { + edge.smooth = true; + var nodeId = "edgeId:".concat(edge.id); + this.sectors['support']['nodes'][nodeId] = new Node( + {id:nodeId, + mass:1, + shape:'circle', + internalMultiplier:1 + },{},{},this.constants); + edge.via = this.sectors['support']['nodes'][nodeId]; + edge.via.parentEdgeId = edge.id; + edge.positionBezierNode(); + } + } + } + } +}; + + +Graph.prototype._initializeMixinLoaders = function () { + for (var mixinFunction in graphMixinLoaders) { + if (graphMixinLoaders.hasOwnProperty(mixinFunction)) { + Graph.prototype[mixinFunction] = graphMixinLoaders[mixinFunction]; + } + } +}; + + + + + + + + + + + + + + + + + + + + +/** + * vis.js module exports + */ +var vis = { + util: util, + + Controller: Controller, + DataSet: DataSet, + DataView: DataView, + Range: Range, + Stack: Stack, + TimeStep: TimeStep, + + components: { + items: { + Item: Item, + ItemBox: ItemBox, + ItemPoint: ItemPoint, + ItemRange: ItemRange + }, + + Component: Component, + Panel: Panel, + RootPanel: RootPanel, + ItemSet: ItemSet, + TimeAxis: TimeAxis + }, + + graph: { + Node: Node, + Edge: Edge, + Popup: Popup, + Groups: Groups, + Images: Images + }, + + Timeline: Timeline, + Graph: Graph +}; + +/** + * CommonJS module exports + */ +if (typeof exports !== 'undefined') { + exports = vis; +} +if (typeof module !== 'undefined' && typeof module.exports !== 'undefined') { + module.exports = vis; +} + +/** + * AMD module exports + */ +if (typeof(define) === 'function') { + define(function () { + return vis; + }); +} + +/** + * Window exports + */ +if (typeof window !== 'undefined') { + // attach the module to the window, load as a regular javascript file + window['vis'] = vis; +} + + +},{"emitter-component":2,"hammerjs":3,"moment":4,"mousetrap":5}],2:[function(require,module,exports){ + +/** + * Expose `Emitter`. + */ + +module.exports = Emitter; + +/** + * Initialize a new `Emitter`. + * + * @api public + */ + +function Emitter(obj) { + if (obj) return mixin(obj); +}; + +/** + * Mixin the emitter properties. + * + * @param {Object} obj + * @return {Object} + * @api private + */ + +function mixin(obj) { + for (var key in Emitter.prototype) { + obj[key] = Emitter.prototype[key]; + } + return obj; +} + +/** + * Listen on the given `event` with `fn`. + * + * @param {String} event + * @param {Function} fn + * @return {Emitter} + * @api public + */ + +Emitter.prototype.on = +Emitter.prototype.addEventListener = function(event, fn){ + this._callbacks = this._callbacks || {}; + (this._callbacks[event] = this._callbacks[event] || []) + .push(fn); + return this; +}; + +/** + * Adds an `event` listener that will be invoked a single + * time then automatically removed. + * + * @param {String} event + * @param {Function} fn + * @return {Emitter} + * @api public + */ + +Emitter.prototype.once = function(event, fn){ + var self = this; + this._callbacks = this._callbacks || {}; + + function on() { + self.off(event, on); + fn.apply(this, arguments); + } + + on.fn = fn; + this.on(event, on); + return this; +}; + +/** + * Remove the given callback for `event` or all + * registered callbacks. + * + * @param {String} event + * @param {Function} fn + * @return {Emitter} + * @api public + */ + +Emitter.prototype.off = +Emitter.prototype.removeListener = +Emitter.prototype.removeAllListeners = +Emitter.prototype.removeEventListener = function(event, fn){ + this._callbacks = this._callbacks || {}; + + // all + if (0 == arguments.length) { + this._callbacks = {}; + return this; + } + + // specific event + var callbacks = this._callbacks[event]; + if (!callbacks) return this; + + // remove all handlers + if (1 == arguments.length) { + delete this._callbacks[event]; + return this; + } + + // remove specific handler + var cb; + for (var i = 0; i < callbacks.length; i++) { + cb = callbacks[i]; + if (cb === fn || cb.fn === fn) { + callbacks.splice(i, 1); + break; + } + } + return this; +}; + +/** + * Emit `event` with the given args. + * + * @param {String} event + * @param {Mixed} ... + * @return {Emitter} + */ + +Emitter.prototype.emit = function(event){ + this._callbacks = this._callbacks || {}; + var args = [].slice.call(arguments, 1) + , callbacks = this._callbacks[event]; + + if (callbacks) { + callbacks = callbacks.slice(0); + for (var i = 0, len = callbacks.length; i < len; ++i) { + callbacks[i].apply(this, args); + } + } + + return this; +}; + +/** + * Return array of callbacks for `event`. + * + * @param {String} event + * @return {Array} + * @api public + */ + +Emitter.prototype.listeners = function(event){ + this._callbacks = this._callbacks || {}; + return this._callbacks[event] || []; +}; + +/** + * Check if this emitter has `event` handlers. + * + * @param {String} event + * @return {Boolean} + * @api public + */ + +Emitter.prototype.hasListeners = function(event){ + return !! this.listeners(event).length; +}; + +},{}],3:[function(require,module,exports){ +/*! Hammer.JS - v1.0.5 - 2013-04-07 + * http://eightmedia.github.com/hammer.js + * + * Copyright (c) 2013 Jorik Tangelder ; + * Licensed under the MIT license */ + +(function(window, undefined) { + 'use strict'; + +/** + * Hammer + * use this to create instances + * @param {HTMLElement} element + * @param {Object} options + * @returns {Hammer.Instance} + * @constructor + */ +var Hammer = function(element, options) { + return new Hammer.Instance(element, options || {}); +}; + +// default settings +Hammer.defaults = { + // add styles and attributes to the element to prevent the browser from doing + // its native behavior. this doesnt prevent the scrolling, but cancels + // the contextmenu, tap highlighting etc + // set to false to disable this + stop_browser_behavior: { + // this also triggers onselectstart=false for IE + userSelect: 'none', + // this makes the element blocking in IE10 >, you could experiment with the value + // see for more options this issue; https://github.com/EightMedia/hammer.js/issues/241 + touchAction: 'none', + touchCallout: 'none', + contentZooming: 'none', + userDrag: 'none', + tapHighlightColor: 'rgba(0,0,0,0)' + } + + // more settings are defined per gesture at gestures.js +}; + +// detect touchevents +Hammer.HAS_POINTEREVENTS = navigator.pointerEnabled || navigator.msPointerEnabled; +Hammer.HAS_TOUCHEVENTS = ('ontouchstart' in window); + +// dont use mouseevents on mobile devices +Hammer.MOBILE_REGEX = /mobile|tablet|ip(ad|hone|od)|android/i; +Hammer.NO_MOUSEEVENTS = Hammer.HAS_TOUCHEVENTS && navigator.userAgent.match(Hammer.MOBILE_REGEX); + +// eventtypes per touchevent (start, move, end) +// are filled by Hammer.event.determineEventTypes on setup +Hammer.EVENT_TYPES = {}; + +// direction defines +Hammer.DIRECTION_DOWN = 'down'; +Hammer.DIRECTION_LEFT = 'left'; +Hammer.DIRECTION_UP = 'up'; +Hammer.DIRECTION_RIGHT = 'right'; + +// pointer type +Hammer.POINTER_MOUSE = 'mouse'; +Hammer.POINTER_TOUCH = 'touch'; +Hammer.POINTER_PEN = 'pen'; + +// touch event defines +Hammer.EVENT_START = 'start'; +Hammer.EVENT_MOVE = 'move'; +Hammer.EVENT_END = 'end'; + +// hammer document where the base events are added at +Hammer.DOCUMENT = document; + +// plugins namespace +Hammer.plugins = {}; + +// if the window events are set... +Hammer.READY = false; + +/** + * setup events to detect gestures on the document + */ +function setup() { + if(Hammer.READY) { + return; + } + + // find what eventtypes we add listeners to + Hammer.event.determineEventTypes(); + + // Register all gestures inside Hammer.gestures + for(var name in Hammer.gestures) { + if(Hammer.gestures.hasOwnProperty(name)) { + Hammer.detection.register(Hammer.gestures[name]); + } + } + + // Add touch events on the document + Hammer.event.onTouch(Hammer.DOCUMENT, Hammer.EVENT_MOVE, Hammer.detection.detect); + Hammer.event.onTouch(Hammer.DOCUMENT, Hammer.EVENT_END, Hammer.detection.detect); + + // Hammer is ready...! + Hammer.READY = true; +} + +/** + * create new hammer instance + * all methods should return the instance itself, so it is chainable. + * @param {HTMLElement} element + * @param {Object} [options={}] + * @returns {Hammer.Instance} + * @constructor + */ +Hammer.Instance = function(element, options) { + var self = this; + + // setup HammerJS window events and register all gestures + // this also sets up the default options + setup(); + + this.element = element; + + // start/stop detection option + this.enabled = true; + + // merge options + this.options = Hammer.utils.extend( + Hammer.utils.extend({}, Hammer.defaults), + options || {}); + + // add some css to the element to prevent the browser from doing its native behavoir + if(this.options.stop_browser_behavior) { + Hammer.utils.stopDefaultBrowserBehavior(this.element, this.options.stop_browser_behavior); + } + + // start detection on touchstart + Hammer.event.onTouch(element, Hammer.EVENT_START, function(ev) { + if(self.enabled) { + Hammer.detection.startDetect(self, ev); + } + }); + + // return instance + return this; +}; + + +Hammer.Instance.prototype = { + /** + * bind events to the instance + * @param {String} gesture + * @param {Function} handler + * @returns {Hammer.Instance} + */ + on: function onEvent(gesture, handler){ + var gestures = gesture.split(' '); + for(var t=0; t 0 && eventType == Hammer.EVENT_END) { + eventType = Hammer.EVENT_MOVE; + } + // no touches, force the end event + else if(!count_touches) { + eventType = Hammer.EVENT_END; + } + + // because touchend has no touches, and we often want to use these in our gestures, + // we send the last move event as our eventData in touchend + if(!count_touches && last_move_event !== null) { + ev = last_move_event; + } + // store the last move event + else { + last_move_event = ev; + } + + // trigger the handler + handler.call(Hammer.detection, self.collectEventData(element, eventType, ev)); + + // remove pointerevent from list + if(Hammer.HAS_POINTEREVENTS && eventType == Hammer.EVENT_END) { + count_touches = Hammer.PointerEvent.updatePointer(eventType, ev); + } + } + + //debug(sourceEventType +" "+ eventType); + + // on the end we reset everything + if(!count_touches) { + last_move_event = null; + enable_detect = false; + touch_triggered = false; + Hammer.PointerEvent.reset(); + } + }); + }, + + + /** + * we have different events for each device/browser + * determine what we need and set them in the Hammer.EVENT_TYPES constant + */ + determineEventTypes: function determineEventTypes() { + // determine the eventtype we want to set + var types; + + // pointerEvents magic + if(Hammer.HAS_POINTEREVENTS) { + types = Hammer.PointerEvent.getEvents(); + } + // on Android, iOS, blackberry, windows mobile we dont want any mouseevents + else if(Hammer.NO_MOUSEEVENTS) { + types = [ + 'touchstart', + 'touchmove', + 'touchend touchcancel']; + } + // for non pointer events browsers and mixed browsers, + // like chrome on windows8 touch laptop + else { + types = [ + 'touchstart mousedown', + 'touchmove mousemove', + 'touchend touchcancel mouseup']; + } + + Hammer.EVENT_TYPES[Hammer.EVENT_START] = types[0]; + Hammer.EVENT_TYPES[Hammer.EVENT_MOVE] = types[1]; + Hammer.EVENT_TYPES[Hammer.EVENT_END] = types[2]; + }, + + + /** + * create touchlist depending on the event + * @param {Object} ev + * @param {String} eventType used by the fakemultitouch plugin + */ + getTouchList: function getTouchList(ev/*, eventType*/) { + // get the fake pointerEvent touchlist + if(Hammer.HAS_POINTEREVENTS) { + return Hammer.PointerEvent.getTouchList(); + } + // get the touchlist + else if(ev.touches) { + return ev.touches; + } + // make fake touchlist from mouse position + else { + return [{ + identifier: 1, + pageX: ev.pageX, + pageY: ev.pageY, + target: ev.target + }]; + } + }, + + + /** + * collect event data for Hammer js + * @param {HTMLElement} element + * @param {String} eventType like Hammer.EVENT_MOVE + * @param {Object} eventData + */ + collectEventData: function collectEventData(element, eventType, ev) { + var touches = this.getTouchList(ev, eventType); + + // find out pointerType + var pointerType = Hammer.POINTER_TOUCH; + if(ev.type.match(/mouse/) || Hammer.PointerEvent.matchType(Hammer.POINTER_MOUSE, ev)) { + pointerType = Hammer.POINTER_MOUSE; + } + + return { + center : Hammer.utils.getCenter(touches), + timeStamp : new Date().getTime(), + target : ev.target, + touches : touches, + eventType : eventType, + pointerType : pointerType, + srcEvent : ev, + + /** + * prevent the browser default actions + * mostly used to disable scrolling of the browser + */ + preventDefault: function() { + if(this.srcEvent.preventManipulation) { + this.srcEvent.preventManipulation(); + } + + if(this.srcEvent.preventDefault) { + this.srcEvent.preventDefault(); + } + }, + + /** + * stop bubbling the event up to its parents + */ + stopPropagation: function() { + this.srcEvent.stopPropagation(); + }, + + /** + * immediately stop gesture detection + * might be useful after a swipe was detected + * @return {*} + */ + stopDetect: function() { + return Hammer.detection.stopDetect(); + } + }; + } +}; + +Hammer.PointerEvent = { + /** + * holds all pointers + * @type {Object} + */ + pointers: {}, + + /** + * get a list of pointers + * @returns {Array} touchlist + */ + getTouchList: function() { + var self = this; + var touchlist = []; + + // we can use forEach since pointerEvents only is in IE10 + Object.keys(self.pointers).sort().forEach(function(id) { + touchlist.push(self.pointers[id]); + }); + return touchlist; + }, + + /** + * update the position of a pointer + * @param {String} type Hammer.EVENT_END + * @param {Object} pointerEvent + */ + updatePointer: function(type, pointerEvent) { + if(type == Hammer.EVENT_END) { + this.pointers = {}; + } + else { + pointerEvent.identifier = pointerEvent.pointerId; + this.pointers[pointerEvent.pointerId] = pointerEvent; + } + + return Object.keys(this.pointers).length; + }, + + /** + * check if ev matches pointertype + * @param {String} pointerType Hammer.POINTER_MOUSE + * @param {PointerEvent} ev + */ + matchType: function(pointerType, ev) { + if(!ev.pointerType) { + return false; + } + + var types = {}; + types[Hammer.POINTER_MOUSE] = (ev.pointerType == ev.MSPOINTER_TYPE_MOUSE || ev.pointerType == Hammer.POINTER_MOUSE); + types[Hammer.POINTER_TOUCH] = (ev.pointerType == ev.MSPOINTER_TYPE_TOUCH || ev.pointerType == Hammer.POINTER_TOUCH); + types[Hammer.POINTER_PEN] = (ev.pointerType == ev.MSPOINTER_TYPE_PEN || ev.pointerType == Hammer.POINTER_PEN); + return types[pointerType]; + }, + + + /** + * get events + */ + getEvents: function() { + return [ + 'pointerdown MSPointerDown', + 'pointermove MSPointerMove', + 'pointerup pointercancel MSPointerUp MSPointerCancel' + ]; + }, + + /** + * reset the list + */ + reset: function() { + this.pointers = {}; + } +}; + + +Hammer.utils = { + /** + * extend method, + * also used for cloning when dest is an empty object + * @param {Object} dest + * @param {Object} src + * @parm {Boolean} merge do a merge + * @returns {Object} dest + */ + extend: function extend(dest, src, merge) { + for (var key in src) { + if(dest[key] !== undefined && merge) { + continue; + } + dest[key] = src[key]; + } + return dest; + }, + + + /** + * find if a node is in the given parent + * used for event delegation tricks + * @param {HTMLElement} node + * @param {HTMLElement} parent + * @returns {boolean} has_parent + */ + hasParent: function(node, parent) { + while(node){ + if(node == parent) { + return true; + } + node = node.parentNode; + } + return false; + }, + + + /** + * get the center of all the touches + * @param {Array} touches + * @returns {Object} center + */ + getCenter: function getCenter(touches) { + var valuesX = [], valuesY = []; + + for(var t= 0,len=touches.length; t= y) { + return touch1.pageX - touch2.pageX > 0 ? Hammer.DIRECTION_LEFT : Hammer.DIRECTION_RIGHT; + } + else { + return touch1.pageY - touch2.pageY > 0 ? Hammer.DIRECTION_UP : Hammer.DIRECTION_DOWN; + } + }, + + + /** + * calculate the distance between two touches + * @param {Touch} touch1 + * @param {Touch} touch2 + * @returns {Number} distance + */ + getDistance: function getDistance(touch1, touch2) { + var x = touch2.pageX - touch1.pageX, + y = touch2.pageY - touch1.pageY; + return Math.sqrt((x*x) + (y*y)); + }, + + + /** + * calculate the scale factor between two touchLists (fingers) + * no scale is 1, and goes down to 0 when pinched together, and bigger when pinched out + * @param {Array} start + * @param {Array} end + * @returns {Number} scale + */ + getScale: function getScale(start, end) { + // need two fingers... + if(start.length >= 2 && end.length >= 2) { + return this.getDistance(end[0], end[1]) / + this.getDistance(start[0], start[1]); + } + return 1; + }, + + + /** + * calculate the rotation degrees between two touchLists (fingers) + * @param {Array} start + * @param {Array} end + * @returns {Number} rotation + */ + getRotation: function getRotation(start, end) { + // need two fingers + if(start.length >= 2 && end.length >= 2) { + return this.getAngle(end[1], end[0]) - + this.getAngle(start[1], start[0]); + } + return 0; + }, + + + /** + * boolean if the direction is vertical + * @param {String} direction + * @returns {Boolean} is_vertical + */ + isVertical: function isVertical(direction) { + return (direction == Hammer.DIRECTION_UP || direction == Hammer.DIRECTION_DOWN); + }, + + + /** + * stop browser default behavior with css props + * @param {HtmlElement} element + * @param {Object} css_props + */ + stopDefaultBrowserBehavior: function stopDefaultBrowserBehavior(element, css_props) { + var prop, + vendors = ['webkit','khtml','moz','ms','o','']; + + if(!css_props || !element.style) { + return; + } + + // with css properties for modern browsers + for(var i = 0; i < vendors.length; i++) { + for(var p in css_props) { + if(css_props.hasOwnProperty(p)) { + prop = p; + + // vender prefix at the property + if(vendors[i]) { + prop = vendors[i] + prop.substring(0, 1).toUpperCase() + prop.substring(1); + } + + // set the style + element.style[prop] = css_props[p]; + } + } + } + + // also the disable onselectstart + if(css_props.userSelect == 'none') { + element.onselectstart = function() { + return false; + }; + } + } +}; + +Hammer.detection = { + // contains all registred Hammer.gestures in the correct order + gestures: [], + + // data of the current Hammer.gesture detection session + current: null, + + // the previous Hammer.gesture session data + // is a full clone of the previous gesture.current object + previous: null, + + // when this becomes true, no gestures are fired + stopped: false, + + + /** + * start Hammer.gesture detection + * @param {Hammer.Instance} inst + * @param {Object} eventData + */ + startDetect: function startDetect(inst, eventData) { + // already busy with a Hammer.gesture detection on an element + if(this.current) { + return; + } + + this.stopped = false; + + this.current = { + inst : inst, // reference to HammerInstance we're working for + startEvent : Hammer.utils.extend({}, eventData), // start eventData for distances, timing etc + lastEvent : false, // last eventData + name : '' // current gesture we're in/detected, can be 'tap', 'hold' etc + }; + + this.detect(eventData); + }, + + + /** + * Hammer.gesture detection + * @param {Object} eventData + * @param {Object} eventData + */ + detect: function detect(eventData) { + if(!this.current || this.stopped) { + return; + } + + // extend event data with calculations about scale, distance etc + eventData = this.extendEventData(eventData); + + // instance options + var inst_options = this.current.inst.options; + + // call Hammer.gesture handlers + for(var g=0,len=this.gestures.length; g b.index) { + return 1; + } + return 0; + }); + + return this.gestures; + } +}; + + +Hammer.gestures = Hammer.gestures || {}; + +/** + * Custom gestures + * ============================== + * + * Gesture object + * -------------------- + * The object structure of a gesture: + * + * { name: 'mygesture', + * index: 1337, + * defaults: { + * mygesture_option: true + * } + * handler: function(type, ev, inst) { + * // trigger gesture event + * inst.trigger(this.name, ev); + * } + * } + + * @param {String} name + * this should be the name of the gesture, lowercase + * it is also being used to disable/enable the gesture per instance config. + * + * @param {Number} [index=1000] + * the index of the gesture, where it is going to be in the stack of gestures detection + * like when you build an gesture that depends on the drag gesture, it is a good + * idea to place it after the index of the drag gesture. + * + * @param {Object} [defaults={}] + * the default settings of the gesture. these are added to the instance settings, + * and can be overruled per instance. you can also add the name of the gesture, + * but this is also added by default (and set to true). + * + * @param {Function} handler + * this handles the gesture detection of your custom gesture and receives the + * following arguments: + * + * @param {Object} eventData + * event data containing the following properties: + * timeStamp {Number} time the event occurred + * target {HTMLElement} target element + * touches {Array} touches (fingers, pointers, mouse) on the screen + * pointerType {String} kind of pointer that was used. matches Hammer.POINTER_MOUSE|TOUCH + * center {Object} center position of the touches. contains pageX and pageY + * deltaTime {Number} the total time of the touches in the screen + * deltaX {Number} the delta on x axis we haved moved + * deltaY {Number} the delta on y axis we haved moved + * velocityX {Number} the velocity on the x + * velocityY {Number} the velocity on y + * angle {Number} the angle we are moving + * direction {String} the direction we are moving. matches Hammer.DIRECTION_UP|DOWN|LEFT|RIGHT + * distance {Number} the distance we haved moved + * scale {Number} scaling of the touches, needs 2 touches + * rotation {Number} rotation of the touches, needs 2 touches * + * eventType {String} matches Hammer.EVENT_START|MOVE|END + * srcEvent {Object} the source event, like TouchStart or MouseDown * + * startEvent {Object} contains the same properties as above, + * but from the first touch. this is used to calculate + * distances, deltaTime, scaling etc + * + * @param {Hammer.Instance} inst + * the instance we are doing the detection for. you can get the options from + * the inst.options object and trigger the gesture event by calling inst.trigger + * + * + * Handle gestures + * -------------------- + * inside the handler you can get/set Hammer.detection.current. This is the current + * detection session. It has the following properties + * @param {String} name + * contains the name of the gesture we have detected. it has not a real function, + * only to check in other gestures if something is detected. + * like in the drag gesture we set it to 'drag' and in the swipe gesture we can + * check if the current gesture is 'drag' by accessing Hammer.detection.current.name + * + * @readonly + * @param {Hammer.Instance} inst + * the instance we do the detection for + * + * @readonly + * @param {Object} startEvent + * contains the properties of the first gesture detection in this session. + * Used for calculations about timing, distance, etc. + * + * @readonly + * @param {Object} lastEvent + * contains all the properties of the last gesture detect in this session. + * + * after the gesture detection session has been completed (user has released the screen) + * the Hammer.detection.current object is copied into Hammer.detection.previous, + * this is usefull for gestures like doubletap, where you need to know if the + * previous gesture was a tap + * + * options that have been set by the instance can be received by calling inst.options + * + * You can trigger a gesture event by calling inst.trigger("mygesture", event). + * The first param is the name of your gesture, the second the event argument + * + * + * Register gestures + * -------------------- + * When an gesture is added to the Hammer.gestures object, it is auto registered + * at the setup of the first Hammer instance. You can also call Hammer.detection.register + * manually and pass your gesture object as a param + * + */ + +/** + * Hold + * Touch stays at the same place for x time + * @events hold + */ +Hammer.gestures.Hold = { + name: 'hold', + index: 10, + defaults: { + hold_timeout : 500, + hold_threshold : 1 + }, + timer: null, + handler: function holdGesture(ev, inst) { + switch(ev.eventType) { + case Hammer.EVENT_START: + // clear any running timers + clearTimeout(this.timer); + + // set the gesture so we can check in the timeout if it still is + Hammer.detection.current.name = this.name; + + // set timer and if after the timeout it still is hold, + // we trigger the hold event + this.timer = setTimeout(function() { + if(Hammer.detection.current.name == 'hold') { + inst.trigger('hold', ev); + } + }, inst.options.hold_timeout); + break; + + // when you move or end we clear the timer + case Hammer.EVENT_MOVE: + if(ev.distance > inst.options.hold_threshold) { + clearTimeout(this.timer); + } + break; + + case Hammer.EVENT_END: + clearTimeout(this.timer); + break; + } + } +}; + + +/** + * Tap/DoubleTap + * Quick touch at a place or double at the same place + * @events tap, doubletap + */ +Hammer.gestures.Tap = { + name: 'tap', + index: 100, + defaults: { + tap_max_touchtime : 250, + tap_max_distance : 10, + tap_always : true, + doubletap_distance : 20, + doubletap_interval : 300 + }, + handler: function tapGesture(ev, inst) { + if(ev.eventType == Hammer.EVENT_END) { + // previous gesture, for the double tap since these are two different gesture detections + var prev = Hammer.detection.previous, + did_doubletap = false; + + // when the touchtime is higher then the max touch time + // or when the moving distance is too much + if(ev.deltaTime > inst.options.tap_max_touchtime || + ev.distance > inst.options.tap_max_distance) { + return; + } + + // check if double tap + if(prev && prev.name == 'tap' && + (ev.timeStamp - prev.lastEvent.timeStamp) < inst.options.doubletap_interval && + ev.distance < inst.options.doubletap_distance) { + inst.trigger('doubletap', ev); + did_doubletap = true; + } + + // do a single tap + if(!did_doubletap || inst.options.tap_always) { + Hammer.detection.current.name = 'tap'; + inst.trigger(Hammer.detection.current.name, ev); + } + } + } +}; + + +/** + * Swipe + * triggers swipe events when the end velocity is above the threshold + * @events swipe, swipeleft, swiperight, swipeup, swipedown + */ +Hammer.gestures.Swipe = { + name: 'swipe', + index: 40, + defaults: { + // set 0 for unlimited, but this can conflict with transform + swipe_max_touches : 1, + swipe_velocity : 0.7 + }, + handler: function swipeGesture(ev, inst) { + if(ev.eventType == Hammer.EVENT_END) { + // max touches + if(inst.options.swipe_max_touches > 0 && + ev.touches.length > inst.options.swipe_max_touches) { + return; + } + + // when the distance we moved is too small we skip this gesture + // or we can be already in dragging + if(ev.velocityX > inst.options.swipe_velocity || + ev.velocityY > inst.options.swipe_velocity) { + // trigger swipe events + inst.trigger(this.name, ev); + inst.trigger(this.name + ev.direction, ev); + } + } + } +}; + + +/** + * Drag + * Move with x fingers (default 1) around on the page. Blocking the scrolling when + * moving left and right is a good practice. When all the drag events are blocking + * you disable scrolling on that area. + * @events drag, drapleft, dragright, dragup, dragdown + */ +Hammer.gestures.Drag = { + name: 'drag', + index: 50, + defaults: { + drag_min_distance : 10, + // set 0 for unlimited, but this can conflict with transform + drag_max_touches : 1, + // prevent default browser behavior when dragging occurs + // be careful with it, it makes the element a blocking element + // when you are using the drag gesture, it is a good practice to set this true + drag_block_horizontal : false, + drag_block_vertical : false, + // drag_lock_to_axis keeps the drag gesture on the axis that it started on, + // It disallows vertical directions if the initial direction was horizontal, and vice versa. + drag_lock_to_axis : false, + // drag lock only kicks in when distance > drag_lock_min_distance + // This way, locking occurs only when the distance has become large enough to reliably determine the direction + drag_lock_min_distance : 25 + }, + triggered: false, + handler: function dragGesture(ev, inst) { + // current gesture isnt drag, but dragged is true + // this means an other gesture is busy. now call dragend + if(Hammer.detection.current.name != this.name && this.triggered) { + inst.trigger(this.name +'end', ev); + this.triggered = false; + return; + } + + // max touches + if(inst.options.drag_max_touches > 0 && + ev.touches.length > inst.options.drag_max_touches) { + return; + } + + switch(ev.eventType) { + case Hammer.EVENT_START: + this.triggered = false; + break; + + case Hammer.EVENT_MOVE: + // when the distance we moved is too small we skip this gesture + // or we can be already in dragging + if(ev.distance < inst.options.drag_min_distance && + Hammer.detection.current.name != this.name) { + return; + } + + // we are dragging! + Hammer.detection.current.name = this.name; + + // lock drag to axis? + if(Hammer.detection.current.lastEvent.drag_locked_to_axis || (inst.options.drag_lock_to_axis && inst.options.drag_lock_min_distance<=ev.distance)) { + ev.drag_locked_to_axis = true; + } + var last_direction = Hammer.detection.current.lastEvent.direction; + if(ev.drag_locked_to_axis && last_direction !== ev.direction) { + // keep direction on the axis that the drag gesture started on + if(Hammer.utils.isVertical(last_direction)) { + ev.direction = (ev.deltaY < 0) ? Hammer.DIRECTION_UP : Hammer.DIRECTION_DOWN; + } + else { + ev.direction = (ev.deltaX < 0) ? Hammer.DIRECTION_LEFT : Hammer.DIRECTION_RIGHT; + } + } + + // first time, trigger dragstart event + if(!this.triggered) { + inst.trigger(this.name +'start', ev); + this.triggered = true; + } + + // trigger normal event + inst.trigger(this.name, ev); + + // direction event, like dragdown + inst.trigger(this.name + ev.direction, ev); + + // block the browser events + if( (inst.options.drag_block_vertical && Hammer.utils.isVertical(ev.direction)) || + (inst.options.drag_block_horizontal && !Hammer.utils.isVertical(ev.direction))) { + ev.preventDefault(); + } + break; + + case Hammer.EVENT_END: + // trigger dragend + if(this.triggered) { + inst.trigger(this.name +'end', ev); + } + + this.triggered = false; + break; + } + } +}; + + +/** + * Transform + * User want to scale or rotate with 2 fingers + * @events transform, pinch, pinchin, pinchout, rotate + */ +Hammer.gestures.Transform = { + name: 'transform', + index: 45, + defaults: { + // factor, no scale is 1, zoomin is to 0 and zoomout until higher then 1 + transform_min_scale : 0.01, + // rotation in degrees + transform_min_rotation : 1, + // prevent default browser behavior when two touches are on the screen + // but it makes the element a blocking element + // when you are using the transform gesture, it is a good practice to set this true + transform_always_block : false + }, + triggered: false, + handler: function transformGesture(ev, inst) { + // current gesture isnt drag, but dragged is true + // this means an other gesture is busy. now call dragend + if(Hammer.detection.current.name != this.name && this.triggered) { + inst.trigger(this.name +'end', ev); + this.triggered = false; + return; + } + + // atleast multitouch + if(ev.touches.length < 2) { + return; + } + + // prevent default when two fingers are on the screen + if(inst.options.transform_always_block) { + ev.preventDefault(); + } + + switch(ev.eventType) { + case Hammer.EVENT_START: + this.triggered = false; + break; + + case Hammer.EVENT_MOVE: + var scale_threshold = Math.abs(1-ev.scale); + var rotation_threshold = Math.abs(ev.rotation); + + // when the distance we moved is too small we skip this gesture + // or we can be already in dragging + if(scale_threshold < inst.options.transform_min_scale && + rotation_threshold < inst.options.transform_min_rotation) { + return; + } + + // we are transforming! + Hammer.detection.current.name = this.name; + + // first time, trigger dragstart event + if(!this.triggered) { + inst.trigger(this.name +'start', ev); + this.triggered = true; + } + + inst.trigger(this.name, ev); // basic transform event + + // trigger rotate event + if(rotation_threshold > inst.options.transform_min_rotation) { + inst.trigger('rotate', ev); + } + + // trigger pinch event + if(scale_threshold > inst.options.transform_min_scale) { + inst.trigger('pinch', ev); + inst.trigger('pinch'+ ((ev.scale < 1) ? 'in' : 'out'), ev); + } + break; + + case Hammer.EVENT_END: + // trigger dragend + if(this.triggered) { + inst.trigger(this.name +'end', ev); + } + + this.triggered = false; + break; + } + } +}; + + +/** + * Touch + * Called as first, tells the user has touched the screen + * @events touch + */ +Hammer.gestures.Touch = { + name: 'touch', + index: -Infinity, + defaults: { + // call preventDefault at touchstart, and makes the element blocking by + // disabling the scrolling of the page, but it improves gestures like + // transforming and dragging. + // be careful with using this, it can be very annoying for users to be stuck + // on the page + prevent_default: false, + + // disable mouse events, so only touch (or pen!) input triggers events + prevent_mouseevents: false + }, + handler: function touchGesture(ev, inst) { + if(inst.options.prevent_mouseevents && ev.pointerType == Hammer.POINTER_MOUSE) { + ev.stopDetect(); + return; + } + + if(inst.options.prevent_default) { + ev.preventDefault(); + } + + if(ev.eventType == Hammer.EVENT_START) { + inst.trigger(this.name, ev); + } + } +}; + + +/** + * Release + * Called as last, tells the user has released the screen + * @events release + */ +Hammer.gestures.Release = { + name: 'release', + index: Infinity, + handler: function releaseGesture(ev, inst) { + if(ev.eventType == Hammer.EVENT_END) { + inst.trigger(this.name, ev); + } + } +}; + +// node export +if(typeof module === 'object' && typeof module.exports === 'object'){ + module.exports = Hammer; +} +// just window export +else { + window.Hammer = Hammer; + + // requireJS module definition + if(typeof window.define === 'function' && window.define.amd) { + window.define('hammer', [], function() { + return Hammer; + }); + } +} +})(this); +},{}],4:[function(require,module,exports){ +//! moment.js +//! version : 2.5.1 +//! authors : Tim Wood, Iskren Chernev, Moment.js contributors +//! license : MIT +//! momentjs.com + +(function (undefined) { + + /************************************ + Constants + ************************************/ + + var moment, + VERSION = "2.5.1", + global = this, + round = Math.round, + i, + + YEAR = 0, + MONTH = 1, + DATE = 2, + HOUR = 3, + MINUTE = 4, + SECOND = 5, + MILLISECOND = 6, + + // internal storage for language config files + languages = {}, + + // moment internal properties + momentProperties = { + _isAMomentObject: null, + _i : null, + _f : null, + _l : null, + _strict : null, + _isUTC : null, + _offset : null, // optional. Combine with _isUTC + _pf : null, + _lang : null // optional + }, + + // check for nodeJS + hasModule = (typeof module !== 'undefined' && module.exports && typeof require !== 'undefined'), + + // ASP.NET json date format regex + aspNetJsonRegex = /^\/?Date\((\-?\d+)/i, + aspNetTimeSpanJsonRegex = /(\-)?(?:(\d*)\.)?(\d+)\:(\d+)(?:\:(\d+)\.?(\d{3})?)?/, + + // from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html + // somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere + isoDurationRegex = /^(-)?P(?:(?:([0-9,.]*)Y)?(?:([0-9,.]*)M)?(?:([0-9,.]*)D)?(?:T(?:([0-9,.]*)H)?(?:([0-9,.]*)M)?(?:([0-9,.]*)S)?)?|([0-9,.]*)W)$/, + + // format tokens + formattingTokens = /(\[[^\[]*\])|(\\)?(Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|YYYYYY|YYYYY|YYYY|YY|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|mm?|ss?|S{1,4}|X|zz?|ZZ?|.)/g, + localFormattingTokens = /(\[[^\[]*\])|(\\)?(LT|LL?L?L?|l{1,4})/g, + + // parsing token regexes + parseTokenOneOrTwoDigits = /\d\d?/, // 0 - 99 + parseTokenOneToThreeDigits = /\d{1,3}/, // 0 - 999 + parseTokenOneToFourDigits = /\d{1,4}/, // 0 - 9999 + parseTokenOneToSixDigits = /[+\-]?\d{1,6}/, // -999,999 - 999,999 + parseTokenDigits = /\d+/, // nonzero number of digits + parseTokenWord = /[0-9]*['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]+|[\u0600-\u06FF\/]+(\s*?[\u0600-\u06FF]+){1,2}/i, // any word (or two) characters or numbers including two/three word month in arabic. + parseTokenTimezone = /Z|[\+\-]\d\d:?\d\d/gi, // +00:00 -00:00 +0000 -0000 or Z + parseTokenT = /T/i, // T (ISO separator) + parseTokenTimestampMs = /[\+\-]?\d+(\.\d{1,3})?/, // 123456789 123456789.123 + + //strict parsing regexes + parseTokenOneDigit = /\d/, // 0 - 9 + parseTokenTwoDigits = /\d\d/, // 00 - 99 + parseTokenThreeDigits = /\d{3}/, // 000 - 999 + parseTokenFourDigits = /\d{4}/, // 0000 - 9999 + parseTokenSixDigits = /[+-]?\d{6}/, // -999,999 - 999,999 + parseTokenSignedNumber = /[+-]?\d+/, // -inf - inf + + // iso 8601 regex + // 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00) + isoRegex = /^\s*(?:[+-]\d{6}|\d{4})-(?:(\d\d-\d\d)|(W\d\d$)|(W\d\d-\d)|(\d\d\d))((T| )(\d\d(:\d\d(:\d\d(\.\d+)?)?)?)?([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/, + + isoFormat = 'YYYY-MM-DDTHH:mm:ssZ', + + isoDates = [ + ['YYYYYY-MM-DD', /[+-]\d{6}-\d{2}-\d{2}/], + ['YYYY-MM-DD', /\d{4}-\d{2}-\d{2}/], + ['GGGG-[W]WW-E', /\d{4}-W\d{2}-\d/], + ['GGGG-[W]WW', /\d{4}-W\d{2}/], + ['YYYY-DDD', /\d{4}-\d{3}/] + ], + + // iso time formats and regexes + isoTimes = [ + ['HH:mm:ss.SSSS', /(T| )\d\d:\d\d:\d\d\.\d{1,3}/], + ['HH:mm:ss', /(T| )\d\d:\d\d:\d\d/], + ['HH:mm', /(T| )\d\d:\d\d/], + ['HH', /(T| )\d\d/] + ], + + // timezone chunker "+10:00" > ["10", "00"] or "-1530" > ["-15", "30"] + parseTimezoneChunker = /([\+\-]|\d\d)/gi, + + // getter and setter names + proxyGettersAndSetters = 'Date|Hours|Minutes|Seconds|Milliseconds'.split('|'), + unitMillisecondFactors = { + 'Milliseconds' : 1, + 'Seconds' : 1e3, + 'Minutes' : 6e4, + 'Hours' : 36e5, + 'Days' : 864e5, + 'Months' : 2592e6, + 'Years' : 31536e6 + }, + + unitAliases = { + ms : 'millisecond', + s : 'second', + m : 'minute', + h : 'hour', + d : 'day', + D : 'date', + w : 'week', + W : 'isoWeek', + M : 'month', + y : 'year', + DDD : 'dayOfYear', + e : 'weekday', + E : 'isoWeekday', + gg: 'weekYear', + GG: 'isoWeekYear' + }, + + camelFunctions = { + dayofyear : 'dayOfYear', + isoweekday : 'isoWeekday', + isoweek : 'isoWeek', + weekyear : 'weekYear', + isoweekyear : 'isoWeekYear' + }, + + // format function strings + formatFunctions = {}, + + // tokens to ordinalize and pad + ordinalizeTokens = 'DDD w W M D d'.split(' '), + paddedTokens = 'M D H h m s w W'.split(' '), + + formatTokenFunctions = { + M : function () { + return this.month() + 1; + }, + MMM : function (format) { + return this.lang().monthsShort(this, format); + }, + MMMM : function (format) { + return this.lang().months(this, format); + }, + D : function () { + return this.date(); + }, + DDD : function () { + return this.dayOfYear(); + }, + d : function () { + return this.day(); + }, + dd : function (format) { + return this.lang().weekdaysMin(this, format); + }, + ddd : function (format) { + return this.lang().weekdaysShort(this, format); + }, + dddd : function (format) { + return this.lang().weekdays(this, format); + }, + w : function () { + return this.week(); + }, + W : function () { + return this.isoWeek(); + }, + YY : function () { + return leftZeroFill(this.year() % 100, 2); + }, + YYYY : function () { + return leftZeroFill(this.year(), 4); + }, + YYYYY : function () { + return leftZeroFill(this.year(), 5); + }, + YYYYYY : function () { + var y = this.year(), sign = y >= 0 ? '+' : '-'; + return sign + leftZeroFill(Math.abs(y), 6); + }, + gg : function () { + return leftZeroFill(this.weekYear() % 100, 2); + }, + gggg : function () { + return leftZeroFill(this.weekYear(), 4); + }, + ggggg : function () { + return leftZeroFill(this.weekYear(), 5); + }, + GG : function () { + return leftZeroFill(this.isoWeekYear() % 100, 2); + }, + GGGG : function () { + return leftZeroFill(this.isoWeekYear(), 4); + }, + GGGGG : function () { + return leftZeroFill(this.isoWeekYear(), 5); + }, + e : function () { + return this.weekday(); + }, + E : function () { + return this.isoWeekday(); + }, + a : function () { + return this.lang().meridiem(this.hours(), this.minutes(), true); + }, + A : function () { + return this.lang().meridiem(this.hours(), this.minutes(), false); + }, + H : function () { + return this.hours(); + }, + h : function () { + return this.hours() % 12 || 12; + }, + m : function () { + return this.minutes(); + }, + s : function () { + return this.seconds(); + }, + S : function () { + return toInt(this.milliseconds() / 100); + }, + SS : function () { + return leftZeroFill(toInt(this.milliseconds() / 10), 2); + }, + SSS : function () { + return leftZeroFill(this.milliseconds(), 3); + }, + SSSS : function () { + return leftZeroFill(this.milliseconds(), 3); + }, + Z : function () { + var a = -this.zone(), + b = "+"; + if (a < 0) { + a = -a; + b = "-"; + } + return b + leftZeroFill(toInt(a / 60), 2) + ":" + leftZeroFill(toInt(a) % 60, 2); + }, + ZZ : function () { + var a = -this.zone(), + b = "+"; + if (a < 0) { + a = -a; + b = "-"; + } + return b + leftZeroFill(toInt(a / 60), 2) + leftZeroFill(toInt(a) % 60, 2); + }, + z : function () { + return this.zoneAbbr(); + }, + zz : function () { + return this.zoneName(); + }, + X : function () { + return this.unix(); + }, + Q : function () { + return this.quarter(); + } + }, + + lists = ['months', 'monthsShort', 'weekdays', 'weekdaysShort', 'weekdaysMin']; + + function defaultParsingFlags() { + // We need to deep clone this object, and es5 standard is not very + // helpful. + return { + empty : false, + unusedTokens : [], + unusedInput : [], + overflow : -2, + charsLeftOver : 0, + nullInput : false, + invalidMonth : null, + invalidFormat : false, + userInvalidated : false, + iso: false + }; + } + + function padToken(func, count) { + return function (a) { + return leftZeroFill(func.call(this, a), count); + }; + } + function ordinalizeToken(func, period) { + return function (a) { + return this.lang().ordinal(func.call(this, a), period); + }; + } + + while (ordinalizeTokens.length) { + i = ordinalizeTokens.pop(); + formatTokenFunctions[i + 'o'] = ordinalizeToken(formatTokenFunctions[i], i); + } + while (paddedTokens.length) { + i = paddedTokens.pop(); + formatTokenFunctions[i + i] = padToken(formatTokenFunctions[i], 2); + } + formatTokenFunctions.DDDD = padToken(formatTokenFunctions.DDD, 3); + + + /************************************ + Constructors + ************************************/ + + function Language() { + + } + + // Moment prototype object + function Moment(config) { + checkOverflow(config); + extend(this, config); + } + + // Duration Constructor + function Duration(duration) { + var normalizedInput = normalizeObjectUnits(duration), + years = normalizedInput.year || 0, + months = normalizedInput.month || 0, + weeks = normalizedInput.week || 0, + days = normalizedInput.day || 0, + hours = normalizedInput.hour || 0, + minutes = normalizedInput.minute || 0, + seconds = normalizedInput.second || 0, + milliseconds = normalizedInput.millisecond || 0; + + // representation for dateAddRemove + this._milliseconds = +milliseconds + + seconds * 1e3 + // 1000 + minutes * 6e4 + // 1000 * 60 + hours * 36e5; // 1000 * 60 * 60 + // Because of dateAddRemove treats 24 hours as different from a + // day when working around DST, we need to store them separately + this._days = +days + + weeks * 7; + // It is impossible translate months into days without knowing + // which months you are are talking about, so we have to store + // it separately. + this._months = +months + + years * 12; + + this._data = {}; + + this._bubble(); + } + + /************************************ + Helpers + ************************************/ + + + function extend(a, b) { + for (var i in b) { + if (b.hasOwnProperty(i)) { + a[i] = b[i]; + } + } + + if (b.hasOwnProperty("toString")) { + a.toString = b.toString; + } + + if (b.hasOwnProperty("valueOf")) { + a.valueOf = b.valueOf; + } + + return a; + } + + function cloneMoment(m) { + var result = {}, i; + for (i in m) { + if (m.hasOwnProperty(i) && momentProperties.hasOwnProperty(i)) { + result[i] = m[i]; + } + } + + return result; + } + + function absRound(number) { + if (number < 0) { + return Math.ceil(number); + } else { + return Math.floor(number); + } + } + + // left zero fill a number + // see http://jsperf.com/left-zero-filling for performance comparison + function leftZeroFill(number, targetLength, forceSign) { + var output = '' + Math.abs(number), + sign = number >= 0; + + while (output.length < targetLength) { + output = '0' + output; + } + return (sign ? (forceSign ? '+' : '') : '-') + output; + } + + // helper function for _.addTime and _.subtractTime + function addOrSubtractDurationFromMoment(mom, duration, isAdding, ignoreUpdateOffset) { + var milliseconds = duration._milliseconds, + days = duration._days, + months = duration._months, + minutes, + hours; + + if (milliseconds) { + mom._d.setTime(+mom._d + milliseconds * isAdding); + } + // store the minutes and hours so we can restore them + if (days || months) { + minutes = mom.minute(); + hours = mom.hour(); + } + if (days) { + mom.date(mom.date() + days * isAdding); + } + if (months) { + mom.month(mom.month() + months * isAdding); + } + if (milliseconds && !ignoreUpdateOffset) { + moment.updateOffset(mom); + } + // restore the minutes and hours after possibly changing dst + if (days || months) { + mom.minute(minutes); + mom.hour(hours); + } + } + + // check if is an array + function isArray(input) { + return Object.prototype.toString.call(input) === '[object Array]'; + } + + function isDate(input) { + return Object.prototype.toString.call(input) === '[object Date]' || + input instanceof Date; + } + + // compare two arrays, return the number of differences + function compareArrays(array1, array2, dontConvert) { + var len = Math.min(array1.length, array2.length), + lengthDiff = Math.abs(array1.length - array2.length), + diffs = 0, + i; + for (i = 0; i < len; i++) { + if ((dontConvert && array1[i] !== array2[i]) || + (!dontConvert && toInt(array1[i]) !== toInt(array2[i]))) { + diffs++; + } + } + return diffs + lengthDiff; + } + + function normalizeUnits(units) { + if (units) { + var lowered = units.toLowerCase().replace(/(.)s$/, '$1'); + units = unitAliases[units] || camelFunctions[lowered] || lowered; + } + return units; + } + + function normalizeObjectUnits(inputObject) { + var normalizedInput = {}, + normalizedProp, + prop; + + for (prop in inputObject) { + if (inputObject.hasOwnProperty(prop)) { + normalizedProp = normalizeUnits(prop); + if (normalizedProp) { + normalizedInput[normalizedProp] = inputObject[prop]; + } + } + } + + return normalizedInput; + } + + function makeList(field) { + var count, setter; + + if (field.indexOf('week') === 0) { + count = 7; + setter = 'day'; + } + else if (field.indexOf('month') === 0) { + count = 12; + setter = 'month'; + } + else { + return; + } + + moment[field] = function (format, index) { + var i, getter, + method = moment.fn._lang[field], + results = []; + + if (typeof format === 'number') { + index = format; + format = undefined; + } + + getter = function (i) { + var m = moment().utc().set(setter, i); + return method.call(moment.fn._lang, m, format || ''); + }; + + if (index != null) { + return getter(index); + } + else { + for (i = 0; i < count; i++) { + results.push(getter(i)); + } + return results; + } + }; + } + + function toInt(argumentForCoercion) { + var coercedNumber = +argumentForCoercion, + value = 0; + + if (coercedNumber !== 0 && isFinite(coercedNumber)) { + if (coercedNumber >= 0) { + value = Math.floor(coercedNumber); + } else { + value = Math.ceil(coercedNumber); + } + } + + return value; + } + + function daysInMonth(year, month) { + return new Date(Date.UTC(year, month + 1, 0)).getUTCDate(); + } + + function daysInYear(year) { + return isLeapYear(year) ? 366 : 365; + } + + function isLeapYear(year) { + return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0; + } + + function checkOverflow(m) { + var overflow; + if (m._a && m._pf.overflow === -2) { + overflow = + m._a[MONTH] < 0 || m._a[MONTH] > 11 ? MONTH : + m._a[DATE] < 1 || m._a[DATE] > daysInMonth(m._a[YEAR], m._a[MONTH]) ? DATE : + m._a[HOUR] < 0 || m._a[HOUR] > 23 ? HOUR : + m._a[MINUTE] < 0 || m._a[MINUTE] > 59 ? MINUTE : + m._a[SECOND] < 0 || m._a[SECOND] > 59 ? SECOND : + m._a[MILLISECOND] < 0 || m._a[MILLISECOND] > 999 ? MILLISECOND : + -1; + + if (m._pf._overflowDayOfYear && (overflow < YEAR || overflow > DATE)) { + overflow = DATE; + } + + m._pf.overflow = overflow; + } + } + + function isValid(m) { + if (m._isValid == null) { + m._isValid = !isNaN(m._d.getTime()) && + m._pf.overflow < 0 && + !m._pf.empty && + !m._pf.invalidMonth && + !m._pf.nullInput && + !m._pf.invalidFormat && + !m._pf.userInvalidated; + + if (m._strict) { + m._isValid = m._isValid && + m._pf.charsLeftOver === 0 && + m._pf.unusedTokens.length === 0; + } + } + return m._isValid; + } + + function normalizeLanguage(key) { + return key ? key.toLowerCase().replace('_', '-') : key; + } + + // Return a moment from input, that is local/utc/zone equivalent to model. + function makeAs(input, model) { + return model._isUTC ? moment(input).zone(model._offset || 0) : + moment(input).local(); + } + + /************************************ + Languages + ************************************/ + + + extend(Language.prototype, { + + set : function (config) { + var prop, i; + for (i in config) { + prop = config[i]; + if (typeof prop === 'function') { + this[i] = prop; + } else { + this['_' + i] = prop; + } + } + }, + + _months : "January_February_March_April_May_June_July_August_September_October_November_December".split("_"), + months : function (m) { + return this._months[m.month()]; + }, + + _monthsShort : "Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec".split("_"), + monthsShort : function (m) { + return this._monthsShort[m.month()]; + }, + + monthsParse : function (monthName) { + var i, mom, regex; + + if (!this._monthsParse) { + this._monthsParse = []; + } + + for (i = 0; i < 12; i++) { + // make the regex if we don't have it already + if (!this._monthsParse[i]) { + mom = moment.utc([2000, i]); + regex = '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, ''); + this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i'); + } + // test the regex + if (this._monthsParse[i].test(monthName)) { + return i; + } + } + }, + + _weekdays : "Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday".split("_"), + weekdays : function (m) { + return this._weekdays[m.day()]; + }, + + _weekdaysShort : "Sun_Mon_Tue_Wed_Thu_Fri_Sat".split("_"), + weekdaysShort : function (m) { + return this._weekdaysShort[m.day()]; + }, + + _weekdaysMin : "Su_Mo_Tu_We_Th_Fr_Sa".split("_"), + weekdaysMin : function (m) { + return this._weekdaysMin[m.day()]; + }, + + weekdaysParse : function (weekdayName) { + var i, mom, regex; + + if (!this._weekdaysParse) { + this._weekdaysParse = []; + } + + for (i = 0; i < 7; i++) { + // make the regex if we don't have it already + if (!this._weekdaysParse[i]) { + mom = moment([2000, 1]).day(i); + regex = '^' + this.weekdays(mom, '') + '|^' + this.weekdaysShort(mom, '') + '|^' + this.weekdaysMin(mom, ''); + this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i'); + } + // test the regex + if (this._weekdaysParse[i].test(weekdayName)) { + return i; + } + } + }, + + _longDateFormat : { + LT : "h:mm A", + L : "MM/DD/YYYY", + LL : "MMMM D YYYY", + LLL : "MMMM D YYYY LT", + LLLL : "dddd, MMMM D YYYY LT" + }, + longDateFormat : function (key) { + var output = this._longDateFormat[key]; + if (!output && this._longDateFormat[key.toUpperCase()]) { + output = this._longDateFormat[key.toUpperCase()].replace(/MMMM|MM|DD|dddd/g, function (val) { + return val.slice(1); + }); + this._longDateFormat[key] = output; + } + return output; + }, + + isPM : function (input) { + // IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays + // Using charAt should be more compatible. + return ((input + '').toLowerCase().charAt(0) === 'p'); + }, + + _meridiemParse : /[ap]\.?m?\.?/i, + meridiem : function (hours, minutes, isLower) { + if (hours > 11) { + return isLower ? 'pm' : 'PM'; + } else { + return isLower ? 'am' : 'AM'; + } + }, + + _calendar : { + sameDay : '[Today at] LT', + nextDay : '[Tomorrow at] LT', + nextWeek : 'dddd [at] LT', + lastDay : '[Yesterday at] LT', + lastWeek : '[Last] dddd [at] LT', + sameElse : 'L' + }, + calendar : function (key, mom) { + var output = this._calendar[key]; + return typeof output === 'function' ? output.apply(mom) : output; + }, + + _relativeTime : { + future : "in %s", + past : "%s ago", + s : "a few seconds", + m : "a minute", + mm : "%d minutes", + h : "an hour", + hh : "%d hours", + d : "a day", + dd : "%d days", + M : "a month", + MM : "%d months", + y : "a year", + yy : "%d years" + }, + relativeTime : function (number, withoutSuffix, string, isFuture) { + var output = this._relativeTime[string]; + return (typeof output === 'function') ? + output(number, withoutSuffix, string, isFuture) : + output.replace(/%d/i, number); + }, + pastFuture : function (diff, output) { + var format = this._relativeTime[diff > 0 ? 'future' : 'past']; + return typeof format === 'function' ? format(output) : format.replace(/%s/i, output); + }, + + ordinal : function (number) { + return this._ordinal.replace("%d", number); + }, + _ordinal : "%d", + + preparse : function (string) { + return string; + }, + + postformat : function (string) { + return string; + }, + + week : function (mom) { + return weekOfYear(mom, this._week.dow, this._week.doy).week; + }, + + _week : { + dow : 0, // Sunday is the first day of the week. + doy : 6 // The week that contains Jan 1st is the first week of the year. + }, + + _invalidDate: 'Invalid date', + invalidDate: function () { + return this._invalidDate; + } + }); + + // Loads a language definition into the `languages` cache. The function + // takes a key and optionally values. If not in the browser and no values + // are provided, it will load the language file module. As a convenience, + // this function also returns the language values. + function loadLang(key, values) { + values.abbr = key; + if (!languages[key]) { + languages[key] = new Language(); + } + languages[key].set(values); + return languages[key]; + } + + // Remove a language from the `languages` cache. Mostly useful in tests. + function unloadLang(key) { + delete languages[key]; + } + + // Determines which language definition to use and returns it. + // + // With no parameters, it will return the global language. If you + // pass in a language key, such as 'en', it will return the + // definition for 'en', so long as 'en' has already been loaded using + // moment.lang. + function getLangDefinition(key) { + var i = 0, j, lang, next, split, + get = function (k) { + if (!languages[k] && hasModule) { + try { + require('./lang/' + k); + } catch (e) { } + } + return languages[k]; + }; + + if (!key) { + return moment.fn._lang; + } + + if (!isArray(key)) { + //short-circuit everything else + lang = get(key); + if (lang) { + return lang; + } + key = [key]; + } + + //pick the language from the array + //try ['en-au', 'en-gb'] as 'en-au', 'en-gb', 'en', as in move through the list trying each + //substring from most specific to least, but move to the next array item if it's a more specific variant than the current root + while (i < key.length) { + split = normalizeLanguage(key[i]).split('-'); + j = split.length; + next = normalizeLanguage(key[i + 1]); + next = next ? next.split('-') : null; + while (j > 0) { + lang = get(split.slice(0, j).join('-')); + if (lang) { + return lang; + } + if (next && next.length >= j && compareArrays(split, next, true) >= j - 1) { + //the next array item is better than a shallower substring of this one + break; + } + j--; + } + i++; + } + return moment.fn._lang; + } + + /************************************ + Formatting + ************************************/ + + + function removeFormattingTokens(input) { + if (input.match(/\[[\s\S]/)) { + return input.replace(/^\[|\]$/g, ""); + } + return input.replace(/\\/g, ""); + } + + function makeFormatFunction(format) { + var array = format.match(formattingTokens), i, length; + + for (i = 0, length = array.length; i < length; i++) { + if (formatTokenFunctions[array[i]]) { + array[i] = formatTokenFunctions[array[i]]; + } else { + array[i] = removeFormattingTokens(array[i]); + } + } + + return function (mom) { + var output = ""; + for (i = 0; i < length; i++) { + output += array[i] instanceof Function ? array[i].call(mom, format) : array[i]; + } + return output; + }; + } + + // format date using native date object + function formatMoment(m, format) { + + if (!m.isValid()) { + return m.lang().invalidDate(); + } + + format = expandFormat(format, m.lang()); + + if (!formatFunctions[format]) { + formatFunctions[format] = makeFormatFunction(format); + } + + return formatFunctions[format](m); + } + + function expandFormat(format, lang) { + var i = 5; + + function replaceLongDateFormatTokens(input) { + return lang.longDateFormat(input) || input; + } + + localFormattingTokens.lastIndex = 0; + while (i >= 0 && localFormattingTokens.test(format)) { + format = format.replace(localFormattingTokens, replaceLongDateFormatTokens); + localFormattingTokens.lastIndex = 0; + i -= 1; + } + + return format; + } + + + /************************************ + Parsing + ************************************/ + + + // get the regex to find the next token + function getParseRegexForToken(token, config) { + var a, strict = config._strict; + switch (token) { + case 'DDDD': + return parseTokenThreeDigits; + case 'YYYY': + case 'GGGG': + case 'gggg': + return strict ? parseTokenFourDigits : parseTokenOneToFourDigits; + case 'Y': + case 'G': + case 'g': + return parseTokenSignedNumber; + case 'YYYYYY': + case 'YYYYY': + case 'GGGGG': + case 'ggggg': + return strict ? parseTokenSixDigits : parseTokenOneToSixDigits; + case 'S': + if (strict) { return parseTokenOneDigit; } + /* falls through */ + case 'SS': + if (strict) { return parseTokenTwoDigits; } + /* falls through */ + case 'SSS': + if (strict) { return parseTokenThreeDigits; } + /* falls through */ + case 'DDD': + return parseTokenOneToThreeDigits; + case 'MMM': + case 'MMMM': + case 'dd': + case 'ddd': + case 'dddd': + return parseTokenWord; + case 'a': + case 'A': + return getLangDefinition(config._l)._meridiemParse; + case 'X': + return parseTokenTimestampMs; + case 'Z': + case 'ZZ': + return parseTokenTimezone; + case 'T': + return parseTokenT; + case 'SSSS': + return parseTokenDigits; + case 'MM': + case 'DD': + case 'YY': + case 'GG': + case 'gg': + case 'HH': + case 'hh': + case 'mm': + case 'ss': + case 'ww': + case 'WW': + return strict ? parseTokenTwoDigits : parseTokenOneOrTwoDigits; + case 'M': + case 'D': + case 'd': + case 'H': + case 'h': + case 'm': + case 's': + case 'w': + case 'W': + case 'e': + case 'E': + return parseTokenOneOrTwoDigits; + default : + a = new RegExp(regexpEscape(unescapeFormat(token.replace('\\', '')), "i")); + return a; + } + } + + function timezoneMinutesFromString(string) { + string = string || ""; + var possibleTzMatches = (string.match(parseTokenTimezone) || []), + tzChunk = possibleTzMatches[possibleTzMatches.length - 1] || [], + parts = (tzChunk + '').match(parseTimezoneChunker) || ['-', 0, 0], + minutes = +(parts[1] * 60) + toInt(parts[2]); + + return parts[0] === '+' ? -minutes : minutes; + } + + // function to convert string input to date + function addTimeToArrayFromToken(token, input, config) { + var a, datePartArray = config._a; + + switch (token) { + // MONTH + case 'M' : // fall through to MM + case 'MM' : + if (input != null) { + datePartArray[MONTH] = toInt(input) - 1; + } + break; + case 'MMM' : // fall through to MMMM + case 'MMMM' : + a = getLangDefinition(config._l).monthsParse(input); + // if we didn't find a month name, mark the date as invalid. + if (a != null) { + datePartArray[MONTH] = a; + } else { + config._pf.invalidMonth = input; + } + break; + // DAY OF MONTH + case 'D' : // fall through to DD + case 'DD' : + if (input != null) { + datePartArray[DATE] = toInt(input); + } + break; + // DAY OF YEAR + case 'DDD' : // fall through to DDDD + case 'DDDD' : + if (input != null) { + config._dayOfYear = toInt(input); + } + + break; + // YEAR + case 'YY' : + datePartArray[YEAR] = toInt(input) + (toInt(input) > 68 ? 1900 : 2000); + break; + case 'YYYY' : + case 'YYYYY' : + case 'YYYYYY' : + datePartArray[YEAR] = toInt(input); + break; + // AM / PM + case 'a' : // fall through to A + case 'A' : + config._isPm = getLangDefinition(config._l).isPM(input); + break; + // 24 HOUR + case 'H' : // fall through to hh + case 'HH' : // fall through to hh + case 'h' : // fall through to hh + case 'hh' : + datePartArray[HOUR] = toInt(input); + break; + // MINUTE + case 'm' : // fall through to mm + case 'mm' : + datePartArray[MINUTE] = toInt(input); + break; + // SECOND + case 's' : // fall through to ss + case 'ss' : + datePartArray[SECOND] = toInt(input); + break; + // MILLISECOND + case 'S' : + case 'SS' : + case 'SSS' : + case 'SSSS' : + datePartArray[MILLISECOND] = toInt(('0.' + input) * 1000); + break; + // UNIX TIMESTAMP WITH MS + case 'X': + config._d = new Date(parseFloat(input) * 1000); + break; + // TIMEZONE + case 'Z' : // fall through to ZZ + case 'ZZ' : + config._useUTC = true; + config._tzm = timezoneMinutesFromString(input); + break; + case 'w': + case 'ww': + case 'W': + case 'WW': + case 'd': + case 'dd': + case 'ddd': + case 'dddd': + case 'e': + case 'E': + token = token.substr(0, 1); + /* falls through */ + case 'gg': + case 'gggg': + case 'GG': + case 'GGGG': + case 'GGGGG': + token = token.substr(0, 2); + if (input) { + config._w = config._w || {}; + config._w[token] = input; + } + break; + } + } + + // convert an array to a date. + // the array should mirror the parameters below + // note: all values past the year are optional and will default to the lowest possible value. + // [year, month, day , hour, minute, second, millisecond] + function dateFromConfig(config) { + var i, date, input = [], currentDate, + yearToUse, fixYear, w, temp, lang, weekday, week; + + if (config._d) { + return; + } + + currentDate = currentDateArray(config); + + //compute day of the year from weeks and weekdays + if (config._w && config._a[DATE] == null && config._a[MONTH] == null) { + fixYear = function (val) { + var int_val = parseInt(val, 10); + return val ? + (val.length < 3 ? (int_val > 68 ? 1900 + int_val : 2000 + int_val) : int_val) : + (config._a[YEAR] == null ? moment().weekYear() : config._a[YEAR]); + }; + + w = config._w; + if (w.GG != null || w.W != null || w.E != null) { + temp = dayOfYearFromWeeks(fixYear(w.GG), w.W || 1, w.E, 4, 1); + } + else { + lang = getLangDefinition(config._l); + weekday = w.d != null ? parseWeekday(w.d, lang) : + (w.e != null ? parseInt(w.e, 10) + lang._week.dow : 0); + + week = parseInt(w.w, 10) || 1; + + //if we're parsing 'd', then the low day numbers may be next week + if (w.d != null && weekday < lang._week.dow) { + week++; + } + + temp = dayOfYearFromWeeks(fixYear(w.gg), week, weekday, lang._week.doy, lang._week.dow); + } + + config._a[YEAR] = temp.year; + config._dayOfYear = temp.dayOfYear; + } + + //if the day of the year is set, figure out what it is + if (config._dayOfYear) { + yearToUse = config._a[YEAR] == null ? currentDate[YEAR] : config._a[YEAR]; + + if (config._dayOfYear > daysInYear(yearToUse)) { + config._pf._overflowDayOfYear = true; + } + + date = makeUTCDate(yearToUse, 0, config._dayOfYear); + config._a[MONTH] = date.getUTCMonth(); + config._a[DATE] = date.getUTCDate(); + } + + // Default to current date. + // * if no year, month, day of month are given, default to today + // * if day of month is given, default month and year + // * if month is given, default only year + // * if year is given, don't default anything + for (i = 0; i < 3 && config._a[i] == null; ++i) { + config._a[i] = input[i] = currentDate[i]; + } + + // Zero out whatever was not defaulted, including time + for (; i < 7; i++) { + config._a[i] = input[i] = (config._a[i] == null) ? (i === 2 ? 1 : 0) : config._a[i]; + } + + // add the offsets to the time to be parsed so that we can have a clean array for checking isValid + input[HOUR] += toInt((config._tzm || 0) / 60); + input[MINUTE] += toInt((config._tzm || 0) % 60); + + config._d = (config._useUTC ? makeUTCDate : makeDate).apply(null, input); + } + + function dateFromObject(config) { + var normalizedInput; + + if (config._d) { + return; + } + + normalizedInput = normalizeObjectUnits(config._i); + config._a = [ + normalizedInput.year, + normalizedInput.month, + normalizedInput.day, + normalizedInput.hour, + normalizedInput.minute, + normalizedInput.second, + normalizedInput.millisecond + ]; + + dateFromConfig(config); + } + + function currentDateArray(config) { + var now = new Date(); + if (config._useUTC) { + return [ + now.getUTCFullYear(), + now.getUTCMonth(), + now.getUTCDate() + ]; + } else { + return [now.getFullYear(), now.getMonth(), now.getDate()]; + } + } + + // date from string and format string + function makeDateFromStringAndFormat(config) { + + config._a = []; + config._pf.empty = true; + + // This array is used to make a Date, either with `new Date` or `Date.UTC` + var lang = getLangDefinition(config._l), + string = '' + config._i, + i, parsedInput, tokens, token, skipped, + stringLength = string.length, + totalParsedInputLength = 0; + + tokens = expandFormat(config._f, lang).match(formattingTokens) || []; + + for (i = 0; i < tokens.length; i++) { + token = tokens[i]; + parsedInput = (string.match(getParseRegexForToken(token, config)) || [])[0]; + if (parsedInput) { + skipped = string.substr(0, string.indexOf(parsedInput)); + if (skipped.length > 0) { + config._pf.unusedInput.push(skipped); + } + string = string.slice(string.indexOf(parsedInput) + parsedInput.length); + totalParsedInputLength += parsedInput.length; + } + // don't parse if it's not a known token + if (formatTokenFunctions[token]) { + if (parsedInput) { + config._pf.empty = false; + } + else { + config._pf.unusedTokens.push(token); + } + addTimeToArrayFromToken(token, parsedInput, config); + } + else if (config._strict && !parsedInput) { + config._pf.unusedTokens.push(token); + } + } + + // add remaining unparsed input length to the string + config._pf.charsLeftOver = stringLength - totalParsedInputLength; + if (string.length > 0) { + config._pf.unusedInput.push(string); + } + + // handle am pm + if (config._isPm && config._a[HOUR] < 12) { + config._a[HOUR] += 12; + } + // if is 12 am, change hours to 0 + if (config._isPm === false && config._a[HOUR] === 12) { + config._a[HOUR] = 0; + } + + dateFromConfig(config); + checkOverflow(config); + } + + function unescapeFormat(s) { + return s.replace(/\\(\[)|\\(\])|\[([^\]\[]*)\]|\\(.)/g, function (matched, p1, p2, p3, p4) { + return p1 || p2 || p3 || p4; + }); + } + + // Code from http://stackoverflow.com/questions/3561493/is-there-a-regexp-escape-function-in-javascript + function regexpEscape(s) { + return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&'); + } + + // date from string and array of format strings + function makeDateFromStringAndArray(config) { + var tempConfig, + bestMoment, + + scoreToBeat, + i, + currentScore; + + if (config._f.length === 0) { + config._pf.invalidFormat = true; + config._d = new Date(NaN); + return; + } + + for (i = 0; i < config._f.length; i++) { + currentScore = 0; + tempConfig = extend({}, config); + tempConfig._pf = defaultParsingFlags(); + tempConfig._f = config._f[i]; + makeDateFromStringAndFormat(tempConfig); + + if (!isValid(tempConfig)) { + continue; + } + + // if there is any input that was not parsed add a penalty for that format + currentScore += tempConfig._pf.charsLeftOver; + + //or tokens + currentScore += tempConfig._pf.unusedTokens.length * 10; + + tempConfig._pf.score = currentScore; + + if (scoreToBeat == null || currentScore < scoreToBeat) { + scoreToBeat = currentScore; + bestMoment = tempConfig; + } + } + + extend(config, bestMoment || tempConfig); + } + + // date from iso format + function makeDateFromString(config) { + var i, l, + string = config._i, + match = isoRegex.exec(string); + + if (match) { + config._pf.iso = true; + for (i = 0, l = isoDates.length; i < l; i++) { + if (isoDates[i][1].exec(string)) { + // match[5] should be "T" or undefined + config._f = isoDates[i][0] + (match[6] || " "); + break; + } + } + for (i = 0, l = isoTimes.length; i < l; i++) { + if (isoTimes[i][1].exec(string)) { + config._f += isoTimes[i][0]; + break; + } + } + if (string.match(parseTokenTimezone)) { + config._f += "Z"; + } + makeDateFromStringAndFormat(config); + } + else { + config._d = new Date(string); + } + } + + function makeDateFromInput(config) { + var input = config._i, + matched = aspNetJsonRegex.exec(input); + + if (input === undefined) { + config._d = new Date(); + } else if (matched) { + config._d = new Date(+matched[1]); + } else if (typeof input === 'string') { + makeDateFromString(config); + } else if (isArray(input)) { + config._a = input.slice(0); + dateFromConfig(config); + } else if (isDate(input)) { + config._d = new Date(+input); + } else if (typeof(input) === 'object') { + dateFromObject(config); + } else { + config._d = new Date(input); + } + } + + function makeDate(y, m, d, h, M, s, ms) { + //can't just apply() to create a date: + //http://stackoverflow.com/questions/181348/instantiating-a-javascript-object-by-calling-prototype-constructor-apply + var date = new Date(y, m, d, h, M, s, ms); + + //the date constructor doesn't accept years < 1970 + if (y < 1970) { + date.setFullYear(y); + } + return date; + } + + function makeUTCDate(y) { + var date = new Date(Date.UTC.apply(null, arguments)); + if (y < 1970) { + date.setUTCFullYear(y); + } + return date; + } + + function parseWeekday(input, language) { + if (typeof input === 'string') { + if (!isNaN(input)) { + input = parseInt(input, 10); + } + else { + input = language.weekdaysParse(input); + if (typeof input !== 'number') { + return null; + } + } + } + return input; + } + + /************************************ + Relative Time + ************************************/ + + + // helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize + function substituteTimeAgo(string, number, withoutSuffix, isFuture, lang) { + return lang.relativeTime(number || 1, !!withoutSuffix, string, isFuture); + } + + function relativeTime(milliseconds, withoutSuffix, lang) { + var seconds = round(Math.abs(milliseconds) / 1000), + minutes = round(seconds / 60), + hours = round(minutes / 60), + days = round(hours / 24), + years = round(days / 365), + args = seconds < 45 && ['s', seconds] || + minutes === 1 && ['m'] || + minutes < 45 && ['mm', minutes] || + hours === 1 && ['h'] || + hours < 22 && ['hh', hours] || + days === 1 && ['d'] || + days <= 25 && ['dd', days] || + days <= 45 && ['M'] || + days < 345 && ['MM', round(days / 30)] || + years === 1 && ['y'] || ['yy', years]; + args[2] = withoutSuffix; + args[3] = milliseconds > 0; + args[4] = lang; + return substituteTimeAgo.apply({}, args); + } + + + /************************************ + Week of Year + ************************************/ + + + // firstDayOfWeek 0 = sun, 6 = sat + // the day of the week that starts the week + // (usually sunday or monday) + // firstDayOfWeekOfYear 0 = sun, 6 = sat + // the first week is the week that contains the first + // of this day of the week + // (eg. ISO weeks use thursday (4)) + function weekOfYear(mom, firstDayOfWeek, firstDayOfWeekOfYear) { + var end = firstDayOfWeekOfYear - firstDayOfWeek, + daysToDayOfWeek = firstDayOfWeekOfYear - mom.day(), + adjustedMoment; + + + if (daysToDayOfWeek > end) { + daysToDayOfWeek -= 7; + } + + if (daysToDayOfWeek < end - 7) { + daysToDayOfWeek += 7; + } + + adjustedMoment = moment(mom).add('d', daysToDayOfWeek); + return { + week: Math.ceil(adjustedMoment.dayOfYear() / 7), + year: adjustedMoment.year() + }; + } + + //http://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday + function dayOfYearFromWeeks(year, week, weekday, firstDayOfWeekOfYear, firstDayOfWeek) { + var d = makeUTCDate(year, 0, 1).getUTCDay(), daysToAdd, dayOfYear; + + weekday = weekday != null ? weekday : firstDayOfWeek; + daysToAdd = firstDayOfWeek - d + (d > firstDayOfWeekOfYear ? 7 : 0) - (d < firstDayOfWeek ? 7 : 0); + dayOfYear = 7 * (week - 1) + (weekday - firstDayOfWeek) + daysToAdd + 1; + + return { + year: dayOfYear > 0 ? year : year - 1, + dayOfYear: dayOfYear > 0 ? dayOfYear : daysInYear(year - 1) + dayOfYear + }; + } + + /************************************ + Top Level Functions + ************************************/ + + function makeMoment(config) { + var input = config._i, + format = config._f; + + if (input === null) { + return moment.invalid({nullInput: true}); + } + + if (typeof input === 'string') { + config._i = input = getLangDefinition().preparse(input); + } + + if (moment.isMoment(input)) { + config = cloneMoment(input); + + config._d = new Date(+input._d); + } else if (format) { + if (isArray(format)) { + makeDateFromStringAndArray(config); + } else { + makeDateFromStringAndFormat(config); + } + } else { + makeDateFromInput(config); + } + + return new Moment(config); + } + + moment = function (input, format, lang, strict) { + var c; + + if (typeof(lang) === "boolean") { + strict = lang; + lang = undefined; + } + // object construction must be done this way. + // https://github.com/moment/moment/issues/1423 + c = {}; + c._isAMomentObject = true; + c._i = input; + c._f = format; + c._l = lang; + c._strict = strict; + c._isUTC = false; + c._pf = defaultParsingFlags(); + + return makeMoment(c); + }; + + // creating with utc + moment.utc = function (input, format, lang, strict) { + var c; + + if (typeof(lang) === "boolean") { + strict = lang; + lang = undefined; + } + // object construction must be done this way. + // https://github.com/moment/moment/issues/1423 + c = {}; + c._isAMomentObject = true; + c._useUTC = true; + c._isUTC = true; + c._l = lang; + c._i = input; + c._f = format; + c._strict = strict; + c._pf = defaultParsingFlags(); + + return makeMoment(c).utc(); + }; + + // creating with unix timestamp (in seconds) + moment.unix = function (input) { + return moment(input * 1000); + }; + + // duration + moment.duration = function (input, key) { + var duration = input, + // matching against regexp is expensive, do it on demand + match = null, + sign, + ret, + parseIso; + + if (moment.isDuration(input)) { + duration = { + ms: input._milliseconds, + d: input._days, + M: input._months + }; + } else if (typeof input === 'number') { + duration = {}; + if (key) { + duration[key] = input; + } else { + duration.milliseconds = input; + } + } else if (!!(match = aspNetTimeSpanJsonRegex.exec(input))) { + sign = (match[1] === "-") ? -1 : 1; + duration = { + y: 0, + d: toInt(match[DATE]) * sign, + h: toInt(match[HOUR]) * sign, + m: toInt(match[MINUTE]) * sign, + s: toInt(match[SECOND]) * sign, + ms: toInt(match[MILLISECOND]) * sign + }; + } else if (!!(match = isoDurationRegex.exec(input))) { + sign = (match[1] === "-") ? -1 : 1; + parseIso = function (inp) { + // We'd normally use ~~inp for this, but unfortunately it also + // converts floats to ints. + // inp may be undefined, so careful calling replace on it. + var res = inp && parseFloat(inp.replace(',', '.')); + // apply sign while we're at it + return (isNaN(res) ? 0 : res) * sign; + }; + duration = { + y: parseIso(match[2]), + M: parseIso(match[3]), + d: parseIso(match[4]), + h: parseIso(match[5]), + m: parseIso(match[6]), + s: parseIso(match[7]), + w: parseIso(match[8]) + }; + } + + ret = new Duration(duration); + + if (moment.isDuration(input) && input.hasOwnProperty('_lang')) { + ret._lang = input._lang; + } + + return ret; + }; + + // version number + moment.version = VERSION; + + // default format + moment.defaultFormat = isoFormat; + + // This function will be called whenever a moment is mutated. + // It is intended to keep the offset in sync with the timezone. + moment.updateOffset = function () {}; + + // This function will load languages and then set the global language. If + // no arguments are passed in, it will simply return the current global + // language key. + moment.lang = function (key, values) { + var r; + if (!key) { + return moment.fn._lang._abbr; + } + if (values) { + loadLang(normalizeLanguage(key), values); + } else if (values === null) { + unloadLang(key); + key = 'en'; + } else if (!languages[key]) { + getLangDefinition(key); + } + r = moment.duration.fn._lang = moment.fn._lang = getLangDefinition(key); + return r._abbr; + }; + + // returns language data + moment.langData = function (key) { + if (key && key._lang && key._lang._abbr) { + key = key._lang._abbr; + } + return getLangDefinition(key); + }; + + // compare moment object + moment.isMoment = function (obj) { + return obj instanceof Moment || + (obj != null && obj.hasOwnProperty('_isAMomentObject')); + }; + + // for typechecking Duration objects + moment.isDuration = function (obj) { + return obj instanceof Duration; + }; + + for (i = lists.length - 1; i >= 0; --i) { + makeList(lists[i]); + } + + moment.normalizeUnits = function (units) { + return normalizeUnits(units); + }; + + moment.invalid = function (flags) { + var m = moment.utc(NaN); + if (flags != null) { + extend(m._pf, flags); + } + else { + m._pf.userInvalidated = true; + } + + return m; + }; + + moment.parseZone = function (input) { + return moment(input).parseZone(); + }; + + /************************************ + Moment Prototype + ************************************/ + + + extend(moment.fn = Moment.prototype, { + + clone : function () { + return moment(this); + }, + + valueOf : function () { + return +this._d + ((this._offset || 0) * 60000); + }, + + unix : function () { + return Math.floor(+this / 1000); + }, + + toString : function () { + return this.clone().lang('en').format("ddd MMM DD YYYY HH:mm:ss [GMT]ZZ"); + }, + + toDate : function () { + return this._offset ? new Date(+this) : this._d; + }, + + toISOString : function () { + var m = moment(this).utc(); + if (0 < m.year() && m.year() <= 9999) { + return formatMoment(m, 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]'); + } else { + return formatMoment(m, 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]'); + } + }, + + toArray : function () { + var m = this; + return [ + m.year(), + m.month(), + m.date(), + m.hours(), + m.minutes(), + m.seconds(), + m.milliseconds() + ]; + }, + + isValid : function () { + return isValid(this); + }, + + isDSTShifted : function () { + + if (this._a) { + return this.isValid() && compareArrays(this._a, (this._isUTC ? moment.utc(this._a) : moment(this._a)).toArray()) > 0; + } + + return false; + }, + + parsingFlags : function () { + return extend({}, this._pf); + }, + + invalidAt: function () { + return this._pf.overflow; + }, + + utc : function () { + return this.zone(0); + }, + + local : function () { + this.zone(0); + this._isUTC = false; + return this; + }, + + format : function (inputString) { + var output = formatMoment(this, inputString || moment.defaultFormat); + return this.lang().postformat(output); + }, + + add : function (input, val) { + var dur; + // switch args to support add('s', 1) and add(1, 's') + if (typeof input === 'string') { + dur = moment.duration(+val, input); + } else { + dur = moment.duration(input, val); + } + addOrSubtractDurationFromMoment(this, dur, 1); + return this; + }, + + subtract : function (input, val) { + var dur; + // switch args to support subtract('s', 1) and subtract(1, 's') + if (typeof input === 'string') { + dur = moment.duration(+val, input); + } else { + dur = moment.duration(input, val); + } + addOrSubtractDurationFromMoment(this, dur, -1); + return this; + }, + + diff : function (input, units, asFloat) { + var that = makeAs(input, this), + zoneDiff = (this.zone() - that.zone()) * 6e4, + diff, output; + + units = normalizeUnits(units); + + if (units === 'year' || units === 'month') { + // average number of days in the months in the given dates + diff = (this.daysInMonth() + that.daysInMonth()) * 432e5; // 24 * 60 * 60 * 1000 / 2 + // difference in months + output = ((this.year() - that.year()) * 12) + (this.month() - that.month()); + // adjust by taking difference in days, average number of days + // and dst in the given months. + output += ((this - moment(this).startOf('month')) - + (that - moment(that).startOf('month'))) / diff; + // same as above but with zones, to negate all dst + output -= ((this.zone() - moment(this).startOf('month').zone()) - + (that.zone() - moment(that).startOf('month').zone())) * 6e4 / diff; + if (units === 'year') { + output = output / 12; + } + } else { + diff = (this - that); + output = units === 'second' ? diff / 1e3 : // 1000 + units === 'minute' ? diff / 6e4 : // 1000 * 60 + units === 'hour' ? diff / 36e5 : // 1000 * 60 * 60 + units === 'day' ? (diff - zoneDiff) / 864e5 : // 1000 * 60 * 60 * 24, negate dst + units === 'week' ? (diff - zoneDiff) / 6048e5 : // 1000 * 60 * 60 * 24 * 7, negate dst + diff; + } + return asFloat ? output : absRound(output); + }, + + from : function (time, withoutSuffix) { + return moment.duration(this.diff(time)).lang(this.lang()._abbr).humanize(!withoutSuffix); + }, + + fromNow : function (withoutSuffix) { + return this.from(moment(), withoutSuffix); + }, + + calendar : function () { + // We want to compare the start of today, vs this. + // Getting start-of-today depends on whether we're zone'd or not. + var sod = makeAs(moment(), this).startOf('day'), + diff = this.diff(sod, 'days', true), + format = diff < -6 ? 'sameElse' : + diff < -1 ? 'lastWeek' : + diff < 0 ? 'lastDay' : + diff < 1 ? 'sameDay' : + diff < 2 ? 'nextDay' : + diff < 7 ? 'nextWeek' : 'sameElse'; + return this.format(this.lang().calendar(format, this)); + }, + + isLeapYear : function () { + return isLeapYear(this.year()); + }, + + isDST : function () { + return (this.zone() < this.clone().month(0).zone() || + this.zone() < this.clone().month(5).zone()); + }, + + day : function (input) { + var day = this._isUTC ? this._d.getUTCDay() : this._d.getDay(); + if (input != null) { + input = parseWeekday(input, this.lang()); + return this.add({ d : input - day }); + } else { + return day; + } + }, + + month : function (input) { + var utc = this._isUTC ? 'UTC' : '', + dayOfMonth; + + if (input != null) { + if (typeof input === 'string') { + input = this.lang().monthsParse(input); + if (typeof input !== 'number') { + return this; + } + } + + dayOfMonth = this.date(); + this.date(1); + this._d['set' + utc + 'Month'](input); + this.date(Math.min(dayOfMonth, this.daysInMonth())); + + moment.updateOffset(this); + return this; + } else { + return this._d['get' + utc + 'Month'](); + } + }, + + startOf: function (units) { + units = normalizeUnits(units); + // the following switch intentionally omits break keywords + // to utilize falling through the cases. + switch (units) { + case 'year': + this.month(0); + /* falls through */ + case 'month': + this.date(1); + /* falls through */ + case 'week': + case 'isoWeek': + case 'day': + this.hours(0); + /* falls through */ + case 'hour': + this.minutes(0); + /* falls through */ + case 'minute': + this.seconds(0); + /* falls through */ + case 'second': + this.milliseconds(0); + /* falls through */ + } + + // weeks are a special case + if (units === 'week') { + this.weekday(0); + } else if (units === 'isoWeek') { + this.isoWeekday(1); + } + + return this; + }, + + endOf: function (units) { + units = normalizeUnits(units); + return this.startOf(units).add((units === 'isoWeek' ? 'week' : units), 1).subtract('ms', 1); + }, + + isAfter: function (input, units) { + units = typeof units !== 'undefined' ? units : 'millisecond'; + return +this.clone().startOf(units) > +moment(input).startOf(units); + }, + + isBefore: function (input, units) { + units = typeof units !== 'undefined' ? units : 'millisecond'; + return +this.clone().startOf(units) < +moment(input).startOf(units); + }, + + isSame: function (input, units) { + units = units || 'ms'; + return +this.clone().startOf(units) === +makeAs(input, this).startOf(units); + }, + + min: function (other) { + other = moment.apply(null, arguments); + return other < this ? this : other; + }, + + max: function (other) { + other = moment.apply(null, arguments); + return other > this ? this : other; + }, + + zone : function (input) { + var offset = this._offset || 0; + if (input != null) { + if (typeof input === "string") { + input = timezoneMinutesFromString(input); + } + if (Math.abs(input) < 16) { + input = input * 60; + } + this._offset = input; + this._isUTC = true; + if (offset !== input) { + addOrSubtractDurationFromMoment(this, moment.duration(offset - input, 'm'), 1, true); + } + } else { + return this._isUTC ? offset : this._d.getTimezoneOffset(); + } + return this; + }, + + zoneAbbr : function () { + return this._isUTC ? "UTC" : ""; + }, + + zoneName : function () { + return this._isUTC ? "Coordinated Universal Time" : ""; + }, + + parseZone : function () { + if (this._tzm) { + this.zone(this._tzm); + } else if (typeof this._i === 'string') { + this.zone(this._i); + } + return this; + }, + + hasAlignedHourOffset : function (input) { + if (!input) { + input = 0; + } + else { + input = moment(input).zone(); + } + + return (this.zone() - input) % 60 === 0; + }, + + daysInMonth : function () { + return daysInMonth(this.year(), this.month()); + }, + + dayOfYear : function (input) { + var dayOfYear = round((moment(this).startOf('day') - moment(this).startOf('year')) / 864e5) + 1; + return input == null ? dayOfYear : this.add("d", (input - dayOfYear)); + }, + + quarter : function () { + return Math.ceil((this.month() + 1.0) / 3.0); + }, + + weekYear : function (input) { + var year = weekOfYear(this, this.lang()._week.dow, this.lang()._week.doy).year; + return input == null ? year : this.add("y", (input - year)); + }, + + isoWeekYear : function (input) { + var year = weekOfYear(this, 1, 4).year; + return input == null ? year : this.add("y", (input - year)); + }, + + week : function (input) { + var week = this.lang().week(this); + return input == null ? week : this.add("d", (input - week) * 7); + }, + + isoWeek : function (input) { + var week = weekOfYear(this, 1, 4).week; + return input == null ? week : this.add("d", (input - week) * 7); + }, + + weekday : function (input) { + var weekday = (this.day() + 7 - this.lang()._week.dow) % 7; + return input == null ? weekday : this.add("d", input - weekday); + }, + + isoWeekday : function (input) { + // behaves the same as moment#day except + // as a getter, returns 7 instead of 0 (1-7 range instead of 0-6) + // as a setter, sunday should belong to the previous week. + return input == null ? this.day() || 7 : this.day(this.day() % 7 ? input : input - 7); + }, + + get : function (units) { + units = normalizeUnits(units); + return this[units](); + }, + + set : function (units, value) { + units = normalizeUnits(units); + if (typeof this[units] === 'function') { + this[units](value); + } + return this; + }, + + // If passed a language key, it will set the language for this + // instance. Otherwise, it will return the language configuration + // variables for this instance. + lang : function (key) { + if (key === undefined) { + return this._lang; + } else { + this._lang = getLangDefinition(key); + return this; + } + } + }); + + // helper for adding shortcuts + function makeGetterAndSetter(name, key) { + moment.fn[name] = moment.fn[name + 's'] = function (input) { + var utc = this._isUTC ? 'UTC' : ''; + if (input != null) { + this._d['set' + utc + key](input); + moment.updateOffset(this); + return this; + } else { + return this._d['get' + utc + key](); + } + }; + } + + // loop through and add shortcuts (Month, Date, Hours, Minutes, Seconds, Milliseconds) + for (i = 0; i < proxyGettersAndSetters.length; i ++) { + makeGetterAndSetter(proxyGettersAndSetters[i].toLowerCase().replace(/s$/, ''), proxyGettersAndSetters[i]); + } + + // add shortcut for year (uses different syntax than the getter/setter 'year' == 'FullYear') + makeGetterAndSetter('year', 'FullYear'); + + // add plural methods + moment.fn.days = moment.fn.day; + moment.fn.months = moment.fn.month; + moment.fn.weeks = moment.fn.week; + moment.fn.isoWeeks = moment.fn.isoWeek; + + // add aliased format methods + moment.fn.toJSON = moment.fn.toISOString; + + /************************************ + Duration Prototype + ************************************/ + + + extend(moment.duration.fn = Duration.prototype, { + + _bubble : function () { + var milliseconds = this._milliseconds, + days = this._days, + months = this._months, + data = this._data, + seconds, minutes, hours, years; + + // The following code bubbles up values, see the tests for + // examples of what that means. + data.milliseconds = milliseconds % 1000; + + seconds = absRound(milliseconds / 1000); + data.seconds = seconds % 60; + + minutes = absRound(seconds / 60); + data.minutes = minutes % 60; + + hours = absRound(minutes / 60); + data.hours = hours % 24; + + days += absRound(hours / 24); + data.days = days % 30; + + months += absRound(days / 30); + data.months = months % 12; + + years = absRound(months / 12); + data.years = years; + }, + + weeks : function () { + return absRound(this.days() / 7); + }, + + valueOf : function () { + return this._milliseconds + + this._days * 864e5 + + (this._months % 12) * 2592e6 + + toInt(this._months / 12) * 31536e6; + }, + + humanize : function (withSuffix) { + var difference = +this, + output = relativeTime(difference, !withSuffix, this.lang()); + + if (withSuffix) { + output = this.lang().pastFuture(difference, output); + } + + return this.lang().postformat(output); + }, + + add : function (input, val) { + // supports only 2.0-style add(1, 's') or add(moment) + var dur = moment.duration(input, val); + + this._milliseconds += dur._milliseconds; + this._days += dur._days; + this._months += dur._months; + + this._bubble(); + + return this; + }, + + subtract : function (input, val) { + var dur = moment.duration(input, val); + + this._milliseconds -= dur._milliseconds; + this._days -= dur._days; + this._months -= dur._months; + + this._bubble(); + + return this; + }, + + get : function (units) { + units = normalizeUnits(units); + return this[units.toLowerCase() + 's'](); + }, + + as : function (units) { + units = normalizeUnits(units); + return this['as' + units.charAt(0).toUpperCase() + units.slice(1) + 's'](); + }, + + lang : moment.fn.lang, + + toIsoString : function () { + // inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js + var years = Math.abs(this.years()), + months = Math.abs(this.months()), + days = Math.abs(this.days()), + hours = Math.abs(this.hours()), + minutes = Math.abs(this.minutes()), + seconds = Math.abs(this.seconds() + this.milliseconds() / 1000); + + if (!this.asSeconds()) { + // this is the same as C#'s (Noda) and python (isodate)... + // but not other JS (goog.date) + return 'P0D'; + } + + return (this.asSeconds() < 0 ? '-' : '') + + 'P' + + (years ? years + 'Y' : '') + + (months ? months + 'M' : '') + + (days ? days + 'D' : '') + + ((hours || minutes || seconds) ? 'T' : '') + + (hours ? hours + 'H' : '') + + (minutes ? minutes + 'M' : '') + + (seconds ? seconds + 'S' : ''); + } + }); + + function makeDurationGetter(name) { + moment.duration.fn[name] = function () { + return this._data[name]; + }; + } + + function makeDurationAsGetter(name, factor) { + moment.duration.fn['as' + name] = function () { + return +this / factor; + }; + } + + for (i in unitMillisecondFactors) { + if (unitMillisecondFactors.hasOwnProperty(i)) { + makeDurationAsGetter(i, unitMillisecondFactors[i]); + makeDurationGetter(i.toLowerCase()); + } + } + + makeDurationAsGetter('Weeks', 6048e5); + moment.duration.fn.asMonths = function () { + return (+this - this.years() * 31536e6) / 2592e6 + this.years() * 12; + }; + + + /************************************ + Default Lang + ************************************/ + + + // Set default language, other languages will inherit from English. + moment.lang('en', { + ordinal : function (number) { + var b = number % 10, + output = (toInt(number % 100 / 10) === 1) ? 'th' : + (b === 1) ? 'st' : + (b === 2) ? 'nd' : + (b === 3) ? 'rd' : 'th'; + return number + output; + } + }); + + /* EMBED_LANGUAGES */ + + /************************************ + Exposing Moment + ************************************/ + + function makeGlobal(deprecate) { + var warned = false, local_moment = moment; + /*global ender:false */ + if (typeof ender !== 'undefined') { + return; + } + // here, `this` means `window` in the browser, or `global` on the server + // add `moment` as a global object via a string identifier, + // for Closure Compiler "advanced" mode + if (deprecate) { + global.moment = function () { + if (!warned && console && console.warn) { + warned = true; + console.warn( + "Accessing Moment through the global scope is " + + "deprecated, and will be removed in an upcoming " + + "release."); + } + return local_moment.apply(null, arguments); + }; + extend(global.moment, local_moment); + } else { + global['moment'] = moment; + } + } + + // CommonJS module is defined + if (hasModule) { + module.exports = moment; + makeGlobal(true); + } else if (typeof define === "function" && define.amd) { + define("moment", function (require, exports, module) { + if (module.config && module.config() && module.config().noGlobal !== true) { + // If user provided noGlobal, he is aware of global + makeGlobal(module.config().noGlobal === undefined); + } + + return moment; + }); + } else { + makeGlobal(); + } +}).call(this); + +},{}],5:[function(require,module,exports){ +/** + * Copyright 2012 Craig Campbell + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * Mousetrap is a simple keyboard shortcut library for Javascript with + * no external dependencies + * + * @version 1.1.2 + * @url craig.is/killing/mice + */ + + /** + * mapping of special keycodes to their corresponding keys + * + * everything in this dictionary cannot use keypress events + * so it has to be here to map to the correct keycodes for + * keyup/keydown events + * + * @type {Object} + */ + var _MAP = { + 8: 'backspace', + 9: 'tab', + 13: 'enter', + 16: 'shift', + 17: 'ctrl', + 18: 'alt', + 20: 'capslock', + 27: 'esc', + 32: 'space', + 33: 'pageup', + 34: 'pagedown', + 35: 'end', + 36: 'home', + 37: 'left', + 38: 'up', + 39: 'right', + 40: 'down', + 45: 'ins', + 46: 'del', + 91: 'meta', + 93: 'meta', + 224: 'meta' + }, + + /** + * mapping for special characters so they can support + * + * this dictionary is only used incase you want to bind a + * keyup or keydown event to one of these keys + * + * @type {Object} + */ + _KEYCODE_MAP = { + 106: '*', + 107: '+', + 109: '-', + 110: '.', + 111 : '/', + 186: ';', + 187: '=', + 188: ',', + 189: '-', + 190: '.', + 191: '/', + 192: '`', + 219: '[', + 220: '\\', + 221: ']', + 222: '\'' + }, + + /** + * this is a mapping of keys that require shift on a US keypad + * back to the non shift equivelents + * + * this is so you can use keyup events with these keys + * + * note that this will only work reliably on US keyboards + * + * @type {Object} + */ + _SHIFT_MAP = { + '~': '`', + '!': '1', + '@': '2', + '#': '3', + '$': '4', + '%': '5', + '^': '6', + '&': '7', + '*': '8', + '(': '9', + ')': '0', + '_': '-', + '+': '=', + ':': ';', + '\"': '\'', + '<': ',', + '>': '.', + '?': '/', + '|': '\\' + }, + + /** + * this is a list of special strings you can use to map + * to modifier keys when you specify your keyboard shortcuts + * + * @type {Object} + */ + _SPECIAL_ALIASES = { + 'option': 'alt', + 'command': 'meta', + 'return': 'enter', + 'escape': 'esc' + }, + + /** + * variable to store the flipped version of _MAP from above + * needed to check if we should use keypress or not when no action + * is specified + * + * @type {Object|undefined} + */ + _REVERSE_MAP, + + /** + * a list of all the callbacks setup via Mousetrap.bind() + * + * @type {Object} + */ + _callbacks = {}, + + /** + * direct map of string combinations to callbacks used for trigger() + * + * @type {Object} + */ + _direct_map = {}, + + /** + * keeps track of what level each sequence is at since multiple + * sequences can start out with the same sequence + * + * @type {Object} + */ + _sequence_levels = {}, + + /** + * variable to store the setTimeout call + * + * @type {null|number} + */ + _reset_timer, + + /** + * temporary state where we will ignore the next keyup + * + * @type {boolean|string} + */ + _ignore_next_keyup = false, + + /** + * are we currently inside of a sequence? + * type of action ("keyup" or "keydown" or "keypress") or false + * + * @type {boolean|string} + */ + _inside_sequence = false; + + /** + * loop through the f keys, f1 to f19 and add them to the map + * programatically + */ + for (var i = 1; i < 20; ++i) { + _MAP[111 + i] = 'f' + i; + } + + /** + * loop through to map numbers on the numeric keypad + */ + for (i = 0; i <= 9; ++i) { + _MAP[i + 96] = i; + } + + /** + * cross browser add event method + * + * @param {Element|HTMLDocument} object + * @param {string} type + * @param {Function} callback + * @returns void + */ + function _addEvent(object, type, callback) { + if (object.addEventListener) { + return object.addEventListener(type, callback, false); + } + + object.attachEvent('on' + type, callback); + } + + /** + * takes the event and returns the key character + * + * @param {Event} e + * @return {string} + */ + function _characterFromEvent(e) { + + // for keypress events we should return the character as is + if (e.type == 'keypress') { + return String.fromCharCode(e.which); + } + + // for non keypress events the special maps are needed + if (_MAP[e.which]) { + return _MAP[e.which]; + } + + if (_KEYCODE_MAP[e.which]) { + return _KEYCODE_MAP[e.which]; + } + + // if it is not in the special map + return String.fromCharCode(e.which).toLowerCase(); + } + + /** + * should we stop this event before firing off callbacks + * + * @param {Event} e + * @return {boolean} + */ + function _stop(e) { + var element = e.target || e.srcElement, + tag_name = element.tagName; + + // if the element has the class "mousetrap" then no need to stop + if ((' ' + element.className + ' ').indexOf(' mousetrap ') > -1) { + return false; + } + + // stop for input, select, and textarea + return tag_name == 'INPUT' || tag_name == 'SELECT' || tag_name == 'TEXTAREA' || (element.contentEditable && element.contentEditable == 'true'); + } + + /** + * checks if two arrays are equal + * + * @param {Array} modifiers1 + * @param {Array} modifiers2 + * @returns {boolean} + */ + function _modifiersMatch(modifiers1, modifiers2) { + return modifiers1.sort().join(',') === modifiers2.sort().join(','); + } + + /** + * resets all sequence counters except for the ones passed in + * + * @param {Object} do_not_reset + * @returns void + */ + function _resetSequences(do_not_reset) { + do_not_reset = do_not_reset || {}; + + var active_sequences = false, + key; + + for (key in _sequence_levels) { + if (do_not_reset[key]) { + active_sequences = true; + continue; + } + _sequence_levels[key] = 0; + } + + if (!active_sequences) { + _inside_sequence = false; + } + } + + /** + * finds all callbacks that match based on the keycode, modifiers, + * and action + * + * @param {string} character + * @param {Array} modifiers + * @param {string} action + * @param {boolean=} remove - should we remove any matches + * @param {string=} combination + * @returns {Array} + */ + function _getMatches(character, modifiers, action, remove, combination) { + var i, + callback, + matches = []; + + // if there are no events related to this keycode + if (!_callbacks[character]) { + return []; + } + + // if a modifier key is coming up on its own we should allow it + if (action == 'keyup' && _isModifier(character)) { + modifiers = [character]; + } + + // loop through all callbacks for the key that was pressed + // and see if any of them match + for (i = 0; i < _callbacks[character].length; ++i) { + callback = _callbacks[character][i]; + + // if this is a sequence but it is not at the right level + // then move onto the next match + if (callback.seq && _sequence_levels[callback.seq] != callback.level) { + continue; + } + + // if the action we are looking for doesn't match the action we got + // then we should keep going + if (action != callback.action) { + continue; + } + + // if this is a keypress event that means that we need to only + // look at the character, otherwise check the modifiers as + // well + if (action == 'keypress' || _modifiersMatch(modifiers, callback.modifiers)) { + + // remove is used so if you change your mind and call bind a + // second time with a new function the first one is overwritten + if (remove && callback.combo == combination) { + _callbacks[character].splice(i, 1); + } + + matches.push(callback); + } + } + + return matches; + } + + /** + * takes a key event and figures out what the modifiers are + * + * @param {Event} e + * @returns {Array} + */ + function _eventModifiers(e) { + var modifiers = []; + + if (e.shiftKey) { + modifiers.push('shift'); + } + + if (e.altKey) { + modifiers.push('alt'); + } + + if (e.ctrlKey) { + modifiers.push('ctrl'); + } + + if (e.metaKey) { + modifiers.push('meta'); + } + + return modifiers; + } + + /** + * actually calls the callback function + * + * if your callback function returns false this will use the jquery + * convention - prevent default and stop propogation on the event + * + * @param {Function} callback + * @param {Event} e + * @returns void + */ + function _fireCallback(callback, e) { + if (callback(e) === false) { + if (e.preventDefault) { + e.preventDefault(); + } + + if (e.stopPropagation) { + e.stopPropagation(); + } + + e.returnValue = false; + e.cancelBubble = true; + } + } + + /** + * handles a character key event + * + * @param {string} character + * @param {Event} e + * @returns void + */ + function _handleCharacter(character, e) { + + // if this event should not happen stop here + if (_stop(e)) { + return; + } + + var callbacks = _getMatches(character, _eventModifiers(e), e.type), + i, + do_not_reset = {}, + processed_sequence_callback = false; + + // loop through matching callbacks for this key event + for (i = 0; i < callbacks.length; ++i) { + + // fire for all sequence callbacks + // this is because if for example you have multiple sequences + // bound such as "g i" and "g t" they both need to fire the + // callback for matching g cause otherwise you can only ever + // match the first one + if (callbacks[i].seq) { + processed_sequence_callback = true; + + // keep a list of which sequences were matches for later + do_not_reset[callbacks[i].seq] = 1; + _fireCallback(callbacks[i].callback, e); + continue; + } + + // if there were no sequence matches but we are still here + // that means this is a regular match so we should fire that + if (!processed_sequence_callback && !_inside_sequence) { + _fireCallback(callbacks[i].callback, e); + } + } + + // if you are inside of a sequence and the key you are pressing + // is not a modifier key then we should reset all sequences + // that were not matched by this key event + if (e.type == _inside_sequence && !_isModifier(character)) { + _resetSequences(do_not_reset); + } + } + + /** + * handles a keydown event + * + * @param {Event} e + * @returns void + */ + function _handleKey(e) { + + // normalize e.which for key events + // @see http://stackoverflow.com/questions/4285627/javascript-keycode-vs-charcode-utter-confusion + e.which = typeof e.which == "number" ? e.which : e.keyCode; + + var character = _characterFromEvent(e); + + // no character found then stop + if (!character) { + return; + } + + if (e.type == 'keyup' && _ignore_next_keyup == character) { + _ignore_next_keyup = false; + return; + } + + _handleCharacter(character, e); + } + + /** + * determines if the keycode specified is a modifier key or not + * + * @param {string} key + * @returns {boolean} + */ + function _isModifier(key) { + return key == 'shift' || key == 'ctrl' || key == 'alt' || key == 'meta'; + } + + /** + * called to set a 1 second timeout on the specified sequence + * + * this is so after each key press in the sequence you have 1 second + * to press the next key before you have to start over + * + * @returns void + */ + function _resetSequenceTimer() { + clearTimeout(_reset_timer); + _reset_timer = setTimeout(_resetSequences, 1000); + } + + /** + * reverses the map lookup so that we can look for specific keys + * to see what can and can't use keypress + * + * @return {Object} + */ + function _getReverseMap() { + if (!_REVERSE_MAP) { + _REVERSE_MAP = {}; + for (var key in _MAP) { + + // pull out the numeric keypad from here cause keypress should + // be able to detect the keys from the character + if (key > 95 && key < 112) { + continue; + } + + if (_MAP.hasOwnProperty(key)) { + _REVERSE_MAP[_MAP[key]] = key; + } + } + } + return _REVERSE_MAP; + } + + /** + * picks the best action based on the key combination + * + * @param {string} key - character for key + * @param {Array} modifiers + * @param {string=} action passed in + */ + function _pickBestAction(key, modifiers, action) { + + // if no action was picked in we should try to pick the one + // that we think would work best for this key + if (!action) { + action = _getReverseMap()[key] ? 'keydown' : 'keypress'; + } + + // modifier keys don't work as expected with keypress, + // switch to keydown + if (action == 'keypress' && modifiers.length) { + action = 'keydown'; + } + + return action; + } + + /** + * binds a key sequence to an event + * + * @param {string} combo - combo specified in bind call + * @param {Array} keys + * @param {Function} callback + * @param {string=} action + * @returns void + */ + function _bindSequence(combo, keys, callback, action) { + + // start off by adding a sequence level record for this combination + // and setting the level to 0 + _sequence_levels[combo] = 0; + + // if there is no action pick the best one for the first key + // in the sequence + if (!action) { + action = _pickBestAction(keys[0], []); + } + + /** + * callback to increase the sequence level for this sequence and reset + * all other sequences that were active + * + * @param {Event} e + * @returns void + */ + var _increaseSequence = function(e) { + _inside_sequence = action; + ++_sequence_levels[combo]; + _resetSequenceTimer(); + }, + + /** + * wraps the specified callback inside of another function in order + * to reset all sequence counters as soon as this sequence is done + * + * @param {Event} e + * @returns void + */ + _callbackAndReset = function(e) { + _fireCallback(callback, e); + + // we should ignore the next key up if the action is key down + // or keypress. this is so if you finish a sequence and + // release the key the final key will not trigger a keyup + if (action !== 'keyup') { + _ignore_next_keyup = _characterFromEvent(e); + } + + // weird race condition if a sequence ends with the key + // another sequence begins with + setTimeout(_resetSequences, 10); + }, + i; + + // loop through keys one at a time and bind the appropriate callback + // function. for any key leading up to the final one it should + // increase the sequence. after the final, it should reset all sequences + for (i = 0; i < keys.length; ++i) { + _bindSingle(keys[i], i < keys.length - 1 ? _increaseSequence : _callbackAndReset, action, combo, i); + } + } + + /** + * binds a single keyboard combination + * + * @param {string} combination + * @param {Function} callback + * @param {string=} action + * @param {string=} sequence_name - name of sequence if part of sequence + * @param {number=} level - what part of the sequence the command is + * @returns void + */ + function _bindSingle(combination, callback, action, sequence_name, level) { + + // make sure multiple spaces in a row become a single space + combination = combination.replace(/\s+/g, ' '); + + var sequence = combination.split(' '), + i, + key, + keys, + modifiers = []; + + // if this pattern is a sequence of keys then run through this method + // to reprocess each pattern one key at a time + if (sequence.length > 1) { + return _bindSequence(combination, sequence, callback, action); + } + + // take the keys from this pattern and figure out what the actual + // pattern is all about + keys = combination === '+' ? ['+'] : combination.split('+'); + + for (i = 0; i < keys.length; ++i) { + key = keys[i]; + + // normalize key names + if (_SPECIAL_ALIASES[key]) { + key = _SPECIAL_ALIASES[key]; + } + + // if this is not a keypress event then we should + // be smart about using shift keys + // this will only work for US keyboards however + if (action && action != 'keypress' && _SHIFT_MAP[key]) { + key = _SHIFT_MAP[key]; + modifiers.push('shift'); + } + + // if this key is a modifier then add it to the list of modifiers + if (_isModifier(key)) { + modifiers.push(key); + } + } + + // depending on what the key combination is + // we will try to pick the best event for it + action = _pickBestAction(key, modifiers, action); + + // make sure to initialize array if this is the first time + // a callback is added for this key + if (!_callbacks[key]) { + _callbacks[key] = []; + } + + // remove an existing match if there is one + _getMatches(key, modifiers, action, !sequence_name, combination); + + // add this call back to the array + // if it is a sequence put it at the beginning + // if not put it at the end + // + // this is important because the way these are processed expects + // the sequence ones to come first + _callbacks[key][sequence_name ? 'unshift' : 'push']({ + callback: callback, + modifiers: modifiers, + action: action, + seq: sequence_name, + level: level, + combo: combination + }); + } + + /** + * binds multiple combinations to the same callback + * + * @param {Array} combinations + * @param {Function} callback + * @param {string|undefined} action + * @returns void + */ + function _bindMultiple(combinations, callback, action) { + for (var i = 0; i < combinations.length; ++i) { + _bindSingle(combinations[i], callback, action); + } + } + + // start! + _addEvent(document, 'keypress', _handleKey); + _addEvent(document, 'keydown', _handleKey); + _addEvent(document, 'keyup', _handleKey); + + var mousetrap = { + + /** + * binds an event to mousetrap + * + * can be a single key, a combination of keys separated with +, + * a comma separated list of keys, an array of keys, or + * a sequence of keys separated by spaces + * + * be sure to list the modifier keys first to make sure that the + * correct key ends up getting bound (the last key in the pattern) + * + * @param {string|Array} keys + * @param {Function} callback + * @param {string=} action - 'keypress', 'keydown', or 'keyup' + * @returns void + */ + bind: function(keys, callback, action) { + _bindMultiple(keys instanceof Array ? keys : [keys], callback, action); + _direct_map[keys + ':' + action] = callback; + return this; + }, + + /** + * unbinds an event to mousetrap + * + * the unbinding sets the callback function of the specified key combo + * to an empty function and deletes the corresponding key in the + * _direct_map dict. + * + * the keycombo+action has to be exactly the same as + * it was defined in the bind method + * + * TODO: actually remove this from the _callbacks dictionary instead + * of binding an empty function + * + * @param {string|Array} keys + * @param {string} action + * @returns void + */ + unbind: function(keys, action) { + if (_direct_map[keys + ':' + action]) { + delete _direct_map[keys + ':' + action]; + this.bind(keys, function() {}, action); + } + return this; + }, + + /** + * triggers an event that has already been bound + * + * @param {string} keys + * @param {string=} action + * @returns void + */ + trigger: function(keys, action) { + _direct_map[keys + ':' + action](); + return this; + }, + + /** + * resets the library back to its initial state. this is useful + * if you want to clear out the current keyboard shortcuts and bind + * new ones - for example if you switch to another page + * + * @returns void + */ + reset: function() { + _callbacks = {}; + _direct_map = {}; + return this; + } + }; + +module.exports = mousetrap; + + +},{}]},{},[1]) +(1) +}); \ No newline at end of file diff --git a/dist/vis.min.js b/dist/vis.min.js new file mode 100644 index 00000000..44d5f198 --- /dev/null +++ b/dist/vis.min.js @@ -0,0 +1,32 @@ +/** + * vis.js + * https://github.com/almende/vis + * + * A dynamic, browser-based visualization library. + * + * @version 0.5.0 + * @date 2014-02-20 + * + * @license + * Copyright (C) 2011-2014 Almende B.V, http://almende.com + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may not + * use this file except in compliance with the License. You may obtain a copy + * of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the + * License for the specific language governing permissions and limitations under + * the License. + */ +!function(t){if("object"==typeof exports)module.exports=t();else if("function"==typeof define&&define.amd)define(t);else{var e;"undefined"!=typeof window?e=window:"undefined"!=typeof global?e=global:"undefined"!=typeof self&&(e=self),e.vis=t()}}(function(){var define,module,exports;return function t(e,i,n){function s(r,a){if(!i[r]){if(!e[r]){var h="function"==typeof require&&require;if(!a&&h)return h(r,!0);if(o)return o(r,!0);throw new Error("Cannot find module '"+r+"'")}var d=i[r]={exports:{}};e[r][0].call(d.exports,function(t){var i=e[r][1][t];return s(i?i:t)},d,d.exports,t,e,i,n)}return i[r].exports}for(var o="function"==typeof require&&require,r=0;ri;++i)t.call(e||this,this[i],i,this)}),Array.prototype.map||(Array.prototype.map=function(t,e){var i,n,s;if(null==this)throw new TypeError(" this is null or not defined");var o=Object(this),r=o.length>>>0;if("function"!=typeof t)throw new TypeError(t+" is not a function");for(e&&(i=e),n=new Array(r),s=0;r>s;){var a,h;s in o&&(a=o[s],h=t.call(i,a,s,o),n[s]=h),s++}return n}),Array.prototype.filter||(Array.prototype.filter=function(t){"use strict";if(null==this)throw new TypeError;var e=Object(this),i=e.length>>>0;if("function"!=typeof t)throw new TypeError;for(var n=[],s=arguments[1],o=0;i>o;o++)if(o in e){var r=e[o];t.call(s,r,o,e)&&n.push(r)}return n}),Object.keys||(Object.keys=function(){var t=Object.prototype.hasOwnProperty,e=!{toString:null}.propertyIsEnumerable("toString"),i=["toString","toLocaleString","valueOf","hasOwnProperty","isPrototypeOf","propertyIsEnumerable","constructor"],n=i.length;return function(s){if("object"!=typeof s&&"function"!=typeof s||null===s)throw new TypeError("Object.keys called on non-object");var o=[];for(var r in s)t.call(s,r)&&o.push(r);if(e)for(var a=0;n>a;a++)t.call(s,i[a])&&o.push(i[a]);return o}}()),Array.isArray||(Array.isArray=function(t){return"[object Array]"===Object.prototype.toString.call(t)}),Function.prototype.bind||(Function.prototype.bind=function(t){if("function"!=typeof this)throw new TypeError("Function.prototype.bind - what is trying to be bound is not callable");var e=Array.prototype.slice.call(arguments,1),i=this,n=function(){},s=function(){return i.apply(this instanceof n&&t?this:t,e.concat(Array.prototype.slice.call(arguments)))};return n.prototype=this.prototype,s.prototype=new n,s}),Object.create||(Object.create=function(t){function e(){}if(arguments.length>1)throw new Error("Object.create implementation only accepts the first parameter.");return e.prototype=t,new e}),Function.prototype.bind||(Function.prototype.bind=function(t){if("function"!=typeof this)throw new TypeError("Function.prototype.bind - what is trying to be bound is not callable");var e=Array.prototype.slice.call(arguments,1),i=this,n=function(){},s=function(){return i.apply(this instanceof n&&t?this:t,e.concat(Array.prototype.slice.call(arguments)))};return n.prototype=this.prototype,s.prototype=new n,s});var util={};util.isNumber=function(t){return t instanceof Number||"number"==typeof t},util.isString=function(t){return t instanceof String||"string"==typeof t},util.isDate=function(t){if(t instanceof Date)return!0;if(util.isString(t)){var e=ASPDateRegex.exec(t);if(e)return!0;if(!isNaN(Date.parse(t)))return!0}return!1},util.isDataTable=function(t){return"undefined"!=typeof google&&google.visualization&&google.visualization.DataTable&&t instanceof google.visualization.DataTable},util.randomUUID=function(){var t=function(){return Math.floor(65536*Math.random()).toString(16)};return t()+t()+"-"+t()+"-"+t()+"-"+t()+"-"+t()+t()+t()},util.extend=function(t){for(var e=1,i=arguments.length;i>e;e++){var n=arguments[e];for(var s in n)n.hasOwnProperty(s)&&void 0!==n[s]&&(t[s]=n[s])}return t},util.convert=function(t,e){var i;if(void 0===t)return void 0;if(null===t)return null;if(!e)return t;if("string"!=typeof e&&!(e instanceof String))throw new Error("Type must be a string");switch(e){case"boolean":case"Boolean":return Boolean(t);case"number":case"Number":return Number(t.valueOf());case"string":case"String":return String(t);case"Date":if(util.isNumber(t))return new Date(t);if(t instanceof Date)return new Date(t.valueOf());if(moment.isMoment(t))return new Date(t.valueOf());if(util.isString(t))return i=ASPDateRegex.exec(t),i?new Date(Number(i[1])):moment(t).toDate();throw new Error("Cannot convert object of type "+util.getType(t)+" to type Date");case"Moment":if(util.isNumber(t))return moment(t);if(t instanceof Date)return moment(t.valueOf());if(moment.isMoment(t))return moment(t);if(util.isString(t))return i=ASPDateRegex.exec(t),moment(i?Number(i[1]):t);throw new Error("Cannot convert object of type "+util.getType(t)+" to type Date");case"ISODate":if(util.isNumber(t))return new Date(t);if(t instanceof Date)return t.toISOString();if(moment.isMoment(t))return t.toDate().toISOString();if(util.isString(t))return i=ASPDateRegex.exec(t),i?new Date(Number(i[1])).toISOString():new Date(t).toISOString();throw new Error("Cannot convert object of type "+util.getType(t)+" to type ISODate");case"ASPDate":if(util.isNumber(t))return"/Date("+t+")/";if(t instanceof Date)return"/Date("+t.valueOf()+")/";if(util.isString(t)){i=ASPDateRegex.exec(t);var n;return n=i?new Date(Number(i[1])).valueOf():new Date(t).valueOf(),"/Date("+n+")/"}throw new Error("Cannot convert object of type "+util.getType(t)+" to type ASPDate");default:throw new Error("Cannot convert object of type "+util.getType(t)+' to type "'+e+'"')}};var ASPDateRegex=/^\/?Date\((\-?\d+)/i;util.getType=function(t){var e=typeof t;return"object"==e?null==t?"null":t instanceof Boolean?"Boolean":t instanceof Number?"Number":t instanceof String?"String":t instanceof Array?"Array":t instanceof Date?"Date":"Object":"number"==e?"Number":"boolean"==e?"Boolean":"string"==e?"String":e},util.getAbsoluteLeft=function(t){for(var e=document.documentElement,i=document.body,n=t.offsetLeft,s=t.offsetParent;null!=s&&s!=i&&s!=e;)n+=s.offsetLeft,n-=s.scrollLeft,s=s.offsetParent;return n},util.getAbsoluteTop=function(t){for(var e=document.documentElement,i=document.body,n=t.offsetTop,s=t.offsetParent;null!=s&&s!=i&&s!=e;)n+=s.offsetTop,n-=s.scrollTop,s=s.offsetParent;return n},util.getPageY=function(t){if("pageY"in t)return t.pageY;var e;e="targetTouches"in t&&t.targetTouches.length?t.targetTouches[0].clientY:t.clientY;var i=document.documentElement,n=document.body;return e+(i&&i.scrollTop||n&&n.scrollTop||0)-(i&&i.clientTop||n&&n.clientTop||0)},util.getPageX=function(t){if("pageY"in t)return t.pageX;var e;e="targetTouches"in t&&t.targetTouches.length?t.targetTouches[0].clientX:t.clientX;var i=document.documentElement,n=document.body;return e+(i&&i.scrollLeft||n&&n.scrollLeft||0)-(i&&i.clientLeft||n&&n.clientLeft||0)},util.addClassName=function(t,e){var i=t.className.split(" ");-1==i.indexOf(e)&&(i.push(e),t.className=i.join(" "))},util.removeClassName=function(t,e){var i=t.className.split(" "),n=i.indexOf(e);-1!=n&&(i.splice(n,1),t.className=i.join(" "))},util.forEach=function(t,e){var i,n;if(t instanceof Array)for(i=0,n=t.length;n>i;i++)e(t[i],i,t);else for(i in t)t.hasOwnProperty(i)&&e(t[i],i,t)},util.updateProperty=function(t,e,i){return t[e]!==i?(t[e]=i,!0):!1},util.addEventListener=function(t,e,i,n){t.addEventListener?(void 0===n&&(n=!1),"mousewheel"===e&&navigator.userAgent.indexOf("Firefox")>=0&&(e="DOMMouseScroll"),t.addEventListener(e,i,n)):t.attachEvent("on"+e,i)},util.removeEventListener=function(t,e,i,n){t.removeEventListener?(void 0===n&&(n=!1),"mousewheel"===e&&navigator.userAgent.indexOf("Firefox")>=0&&(e="DOMMouseScroll"),t.removeEventListener(e,i,n)):t.detachEvent("on"+e,i)},util.getTarget=function(t){t||(t=window.event);var e;return t.target?e=t.target:t.srcElement&&(e=t.srcElement),void 0!=e.nodeType&&3==e.nodeType&&(e=e.parentNode),e},util.fakeGesture=function(t,e){var i=null,n=Hammer.event.collectEventData(this,i,e);return isNaN(n.center.pageX)&&(n.center.pageX=e.pageX),isNaN(n.center.pageY)&&(n.center.pageY=e.pageY),n},util.option={},util.option.asBoolean=function(t,e){return"function"==typeof t&&(t=t()),null!=t?0!=t:e||null},util.option.asNumber=function(t,e){return"function"==typeof t&&(t=t()),null!=t?Number(t)||e||null:e||null},util.option.asString=function(t,e){return"function"==typeof t&&(t=t()),null!=t?String(t):e||null},util.option.asSize=function(t,e){return"function"==typeof t&&(t=t()),util.isString(t)?t:util.isNumber(t)?t+"px":e||null},util.option.asElement=function(t,e){return"function"==typeof t&&(t=t()),t||e||null},util.GiveDec=function GiveDec(Hex){return Value="A"==Hex?10:"B"==Hex?11:"C"==Hex?12:"D"==Hex?13:"E"==Hex?14:"F"==Hex?15:eval(Hex)},util.GiveHex=function(t){return Value=10==t?"A":11==t?"B":12==t?"C":13==t?"D":14==t?"E":15==t?"F":""+t},util.hexToRGB=function(t){t=t.replace("#","").toUpperCase();var e=util.GiveDec(t.substring(0,1)),i=util.GiveDec(t.substring(1,2)),n=util.GiveDec(t.substring(2,3)),s=util.GiveDec(t.substring(3,4)),o=util.GiveDec(t.substring(4,5)),r=util.GiveDec(t.substring(5,6)),a=16*e+i,h=16*n+s,i=16*o+r;return{r:a,g:h,b:i}},util.RGBToHex=function(t,e,i){var n=util.GiveHex(Math.floor(t/16)),s=util.GiveHex(t%16),o=util.GiveHex(Math.floor(e/16)),r=util.GiveHex(e%16),a=util.GiveHex(Math.floor(i/16)),h=util.GiveHex(i%16),d=n+s+o+r+a+h;return"#"+d},util.RGBToHSV=function(t,e,i){t/=255,e/=255,i/=255;var n=Math.min(t,Math.min(e,i)),s=Math.max(t,Math.max(e,i));if(n==s)return{h:0,s:0,v:n};var o=t==n?e-i:i==n?t-e:i-t,r=t==n?3:i==n?1:5,a=60*(r-o/(s-n))/360,h=(s-n)/s,d=s;return{h:a,s:h,v:d}},util.HSVToRGB=function(t,e,i){var n,s,o,r=Math.floor(6*t),a=6*t-r,h=i*(1-e),d=i*(1-a*e),l=i*(1-(1-a)*e);switch(r%6){case 0:n=i,s=l,o=h;break;case 1:n=d,s=i,o=h;break;case 2:n=h,s=i,o=l;break;case 3:n=h,s=d,o=i;break;case 4:n=l,s=h,o=i;break;case 5:n=i,s=h,o=d}return{r:Math.floor(255*n),g:Math.floor(255*s),b:Math.floor(255*o)}},util.HSVToHex=function(t,e,i){var n=util.HSVToRGB(t,e,i);return util.RGBToHex(n.r,n.g,n.b)},util.hexToHSV=function(t){var e=util.hexToRGB(t);return util.RGBToHSV(e.r,e.g,e.b)},util.isValidHex=function(t){var e=/(^#[0-9A-F]{6}$)|(^#[0-9A-F]{3}$)/i.test(t);return e},DataSet.prototype.on=function(t,e){var i=this.subscribers[t];i||(i=[],this.subscribers[t]=i),i.push({callback:e})},DataSet.prototype.subscribe=DataSet.prototype.on,DataSet.prototype.off=function(t,e){var i=this.subscribers[t];i&&(this.subscribers[t]=i.filter(function(t){return t.callback!=e}))},DataSet.prototype.unsubscribe=DataSet.prototype.off,DataSet.prototype._trigger=function(t,e,i){if("*"==t)throw new Error("Cannot trigger event *");var n=[];t in this.subscribers&&(n=n.concat(this.subscribers[t])),"*"in this.subscribers&&(n=n.concat(this.subscribers["*"]));for(var s=0;so;o++)i=s._addItem(t[o]),n.push(i);else if(util.isDataTable(t))for(var a=this._getColumnNames(t),h=0,d=t.getNumberOfRows();d>h;h++){for(var l={},c=0,u=a.length;u>c;c++){var p=a[c];l[p]=t.getValue(h,c)}i=s._addItem(l),n.push(i)}else{if(!(t instanceof Object))throw new Error("Unknown dataType");i=s._addItem(t),n.push(i)}return n.length&&this._trigger("add",{items:n},e),n},DataSet.prototype.update=function(t,e){var i=[],n=[],s=this,o=s.fieldId,r=function(t){var e=t[o];s.data[e]?(e=s._updateItem(t),n.push(e)):(e=s._addItem(t),i.push(e))};if(t instanceof Array)for(var a=0,h=t.length;h>a;a++)r(t[a]);else if(util.isDataTable(t))for(var d=this._getColumnNames(t),l=0,c=t.getNumberOfRows();c>l;l++){for(var u={},p=0,f=d.length;f>p;p++){var m=d[p];u[m]=t.getValue(l,p)}r(u)}else{if(!(t instanceof Object))throw new Error("Unknown dataType");r(t)}return i.length&&this._trigger("add",{items:i},e),n.length&&this._trigger("update",{items:n},e),i.concat(n)},DataSet.prototype.get=function(){var t,e,i,n,s=this,o=this.showInternalIds,r=util.getType(arguments[0]);"String"==r||"Number"==r?(t=arguments[0],i=arguments[1],n=arguments[2]):"Array"==r?(e=arguments[0],i=arguments[1],n=arguments[2]):(i=arguments[0],n=arguments[1]);var a;if(i&&i.type){if(a="DataTable"==i.type?"DataTable":"Array",n&&a!=util.getType(n))throw new Error('Type of parameter "data" ('+util.getType(n)+") does not correspond with specified options.type ("+i.type+")");if("DataTable"==a&&!util.isDataTable(n))throw new Error('Parameter "data" must be a DataTable when options.type is "DataTable"')}else a=n?"DataTable"==util.getType(n)?"DataTable":"Array":"Array";void 0!=i&&void 0!=i.showInternalIds&&(this.showInternalIds=i.showInternalIds);var h,d,l,c,u=i&&i.convert||this.options.convert,p=i&&i.filter,f=[];if(void 0!=t)h=s._getItem(t,u),p&&!p(h)&&(h=null);else if(void 0!=e)for(l=0,c=e.length;c>l;l++)h=s._getItem(e[l],u),(!p||p(h))&&f.push(h);else for(d in this.data)this.data.hasOwnProperty(d)&&(h=s._getItem(d,u),(!p||p(h))&&f.push(h));if(this.showInternalIds=o,i&&i.order&&void 0==t&&this._sort(f,i.order),i&&i.fields){var m=i.fields;if(void 0!=t)h=this._filterFields(h,m);else for(l=0,c=f.length;c>l;l++)f[l]=this._filterFields(f[l],m)}if("DataTable"==a){var g=this._getColumnNames(n);if(void 0!=t)s._appendRow(n,g,h);else for(l=0,c=f.length;c>l;l++)s._appendRow(n,g,f[l]);return n}if(void 0!=t)return h;if(n){for(l=0,c=f.length;c>l;l++)n.push(f[l]);return n}return f},DataSet.prototype.getIds=function(t){var e,i,n,s,o,r=this.data,a=t&&t.filter,h=t&&t.order,d=t&&t.convert||this.options.convert,l=[];if(a)if(h){o=[];for(n in r)r.hasOwnProperty(n)&&(s=this._getItem(n,d),a(s)&&o.push(s));for(this._sort(o,h),e=0,i=o.length;i>e;e++)l[e]=o[e][this.fieldId]}else for(n in r)r.hasOwnProperty(n)&&(s=this._getItem(n,d),a(s)&&l.push(s[this.fieldId]));else if(h){o=[];for(n in r)r.hasOwnProperty(n)&&o.push(r[n]);for(this._sort(o,h),e=0,i=o.length;i>e;e++)l[e]=o[e][this.fieldId]}else for(n in r)r.hasOwnProperty(n)&&(s=r[n],l.push(s[this.fieldId]));return l},DataSet.prototype.forEach=function(t,e){var i,n,s=e&&e.filter,o=e&&e.convert||this.options.convert,r=this.data;if(e&&e.order)for(var a=this.get(e),h=0,d=a.length;d>h;h++)i=a[h],n=i[this.fieldId],t(i,n);else for(n in r)r.hasOwnProperty(n)&&(i=this._getItem(n,o),(!s||s(i))&&t(i,n))},DataSet.prototype.map=function(t,e){var i,n=e&&e.filter,s=e&&e.convert||this.options.convert,o=[],r=this.data;for(var a in r)r.hasOwnProperty(a)&&(i=this._getItem(a,s),(!n||n(i))&&o.push(t(i,a)));return e&&e.order&&this._sort(o,e.order),o},DataSet.prototype._filterFields=function(t,e){var i={};for(var n in t)t.hasOwnProperty(n)&&-1!=e.indexOf(n)&&(i[n]=t[n]);return i},DataSet.prototype._sort=function(t,e){if(util.isString(e)){var i=e;t.sort(function(t,e){var n=t[i],s=e[i];return n>s?1:s>n?-1:0})}else{if("function"!=typeof e)throw new TypeError("Order must be a function or a string");t.sort(e)}},DataSet.prototype.remove=function(t,e){var i,n,s,o=[];if(t instanceof Array)for(i=0,n=t.length;n>i;i++)s=this._remove(t[i]),null!=s&&o.push(s);else s=this._remove(t),null!=s&&o.push(s);return o.length&&this._trigger("remove",{items:o},e),o},DataSet.prototype._remove=function(t){if(util.isNumber(t)||util.isString(t)){if(this.data[t])return delete this.data[t],delete this.internalIds[t],t}else if(t instanceof Object){var e=t[this.fieldId];if(e&&this.data[e])return delete this.data[e],delete this.internalIds[e],e}return null},DataSet.prototype.clear=function(t){var e=Object.keys(this.data);return this.data={},this.internalIds={},this._trigger("remove",{items:e},t),e},DataSet.prototype.max=function(t){var e=this.data,i=null,n=null;for(var s in e)if(e.hasOwnProperty(s)){var o=e[s],r=o[t];null!=r&&(!i||r>n)&&(i=o,n=r)}return i},DataSet.prototype.min=function(t){var e=this.data,i=null,n=null;for(var s in e)if(e.hasOwnProperty(s)){var o=e[s],r=o[t];null!=r&&(!i||n>r)&&(i=o,n=r)}return i},DataSet.prototype.distinct=function(t){var e=this.data,i=[],n=this.options.convert[t],s=0;for(var o in e)if(e.hasOwnProperty(o)){for(var r=e[o],a=util.convert(r[t],n),h=!1,d=0;s>d;d++)if(i[d]==a){h=!0;break}h||(i[s]=a,s++)}return i},DataSet.prototype._addItem=function(t){var e=t[this.fieldId];if(void 0!=e){if(this.data[e])throw new Error("Cannot add item: item with id "+e+" already exists")}else e=util.randomUUID(),t[this.fieldId]=e,this.internalIds[e]=t;var i={};for(var n in t)if(t.hasOwnProperty(n)){var s=this.convert[n];i[n]=util.convert(t[n],s)}return this.data[e]=i,e},DataSet.prototype._getItem=function(t,e){var i,n,s=this.data[t];if(!s)return null;var o={},r=this.fieldId,a=this.internalIds;if(e)for(i in s)s.hasOwnProperty(i)&&(n=s[i],i==r&&n in a&&!this.showInternalIds||(o[i]=util.convert(n,e[i])));else for(i in s)s.hasOwnProperty(i)&&(n=s[i],i==r&&n in a&&!this.showInternalIds||(o[i]=n));return o},DataSet.prototype._updateItem=function(t){var e=t[this.fieldId];if(void 0==e)throw new Error("Cannot update item: item has no id (item: "+JSON.stringify(t)+")");var i=this.data[e];if(!i)throw new Error("Cannot update item: no item with id "+e+" found");for(var n in t)if(t.hasOwnProperty(n)){var s=this.convert[n];i[n]=util.convert(t[n],s)}return e},DataSet.prototype.isInternalId=function(t){return t in this.internalIds},DataSet.prototype._getColumnNames=function(t){for(var e=[],i=0,n=t.getNumberOfColumns();n>i;i++)e[i]=t.getColumnId(i)||t.getColumnLabel(i);return e},DataSet.prototype._appendRow=function(t,e,i){for(var n=t.addRow(),s=0,o=e.length;o>s;s++){var r=e[s];t.setValue(n,s,i[r])}},DataView.prototype.setData=function(t){var e,i,n;if(this.data){this.data.unsubscribe&&this.data.unsubscribe("*",this.listener),e=[];for(var s in this.ids)this.ids.hasOwnProperty(s)&&e.push(s);this.ids={},this._trigger("remove",{items:e})}if(this.data=t,this.data){for(this.fieldId=this.options.fieldId||this.data&&this.data.options&&this.data.options.fieldId||"id",e=this.data.getIds({filter:this.options&&this.options.filter}),i=0,n=e.length;n>i;i++)s=e[i],this.ids[s]=!0; +this._trigger("add",{items:e}),this.data.on&&this.data.on("*",this.listener)}},DataView.prototype.get=function(){var t,e,i,n=this,s=util.getType(arguments[0]);"String"==s||"Number"==s||"Array"==s?(t=arguments[0],e=arguments[1],i=arguments[2]):(e=arguments[0],i=arguments[1]);var o=util.extend({},this.options,e);this.options.filter&&e&&e.filter&&(o.filter=function(t){return n.options.filter(t)&&e.filter(t)});var r=[];return void 0!=t&&r.push(t),r.push(o),r.push(i),this.data&&this.data.get.apply(this.data,r)},DataView.prototype.getIds=function(t){var e;if(this.data){var i,n=this.options.filter;i=t&&t.filter?n?function(e){return n(e)&&t.filter(e)}:t.filter:n,e=this.data.getIds({filter:i,order:t&&t.order})}else e=[];return e},DataView.prototype._onEvent=function(t,e,i){var n,s,o,r,a=e&&e.items,h=this.data,d=[],l=[],c=[];if(a&&h){switch(t){case"add":for(n=0,s=a.length;s>n;n++)o=a[n],r=this.get(o),r&&(this.ids[o]=!0,d.push(o));break;case"update":for(n=0,s=a.length;s>n;n++)o=a[n],r=this.get(o),r?this.ids[o]?l.push(o):(this.ids[o]=!0,d.push(o)):this.ids[o]&&(delete this.ids[o],c.push(o));break;case"remove":for(n=0,s=a.length;s>n;n++)o=a[n],this.ids[o]&&(delete this.ids[o],c.push(o))}d.length&&this._trigger("add",{items:d},i),l.length&&this._trigger("update",{items:l},i),c.length&&this._trigger("remove",{items:c},i)}},DataView.prototype.on=DataSet.prototype.on,DataView.prototype.off=DataSet.prototype.off,DataView.prototype._trigger=DataSet.prototype._trigger,DataView.prototype.subscribe=DataView.prototype.on,DataView.prototype.unsubscribe=DataView.prototype.off,TimeStep=function(t,e,i){this.current=new Date,this._start=new Date,this._end=new Date,this.autoScale=!0,this.scale=TimeStep.SCALE.DAY,this.step=1,this.setRange(t,e,i)},TimeStep.SCALE={MILLISECOND:1,SECOND:2,MINUTE:3,HOUR:4,DAY:5,WEEKDAY:6,MONTH:7,YEAR:8},TimeStep.prototype.setRange=function(t,e,i){if(!(t instanceof Date&&e instanceof Date))throw"No legal start or end date in method setRange";this._start=void 0!=t?new Date(t.valueOf()):new Date,this._end=void 0!=e?new Date(e.valueOf()):new Date,this.autoScale&&this.setMinimumStep(i)},TimeStep.prototype.first=function(){this.current=new Date(this._start.valueOf()),this.roundToMinor()},TimeStep.prototype.roundToMinor=function(){switch(this.scale){case TimeStep.SCALE.YEAR:this.current.setFullYear(this.step*Math.floor(this.current.getFullYear()/this.step)),this.current.setMonth(0);case TimeStep.SCALE.MONTH:this.current.setDate(1);case TimeStep.SCALE.DAY:case TimeStep.SCALE.WEEKDAY:this.current.setHours(0);case TimeStep.SCALE.HOUR:this.current.setMinutes(0);case TimeStep.SCALE.MINUTE:this.current.setSeconds(0);case TimeStep.SCALE.SECOND:this.current.setMilliseconds(0)}if(1!=this.step)switch(this.scale){case TimeStep.SCALE.MILLISECOND:this.current.setMilliseconds(this.current.getMilliseconds()-this.current.getMilliseconds()%this.step);break;case TimeStep.SCALE.SECOND:this.current.setSeconds(this.current.getSeconds()-this.current.getSeconds()%this.step);break;case TimeStep.SCALE.MINUTE:this.current.setMinutes(this.current.getMinutes()-this.current.getMinutes()%this.step);break;case TimeStep.SCALE.HOUR:this.current.setHours(this.current.getHours()-this.current.getHours()%this.step);break;case TimeStep.SCALE.WEEKDAY:case TimeStep.SCALE.DAY:this.current.setDate(this.current.getDate()-1-(this.current.getDate()-1)%this.step+1);break;case TimeStep.SCALE.MONTH:this.current.setMonth(this.current.getMonth()-this.current.getMonth()%this.step);break;case TimeStep.SCALE.YEAR:this.current.setFullYear(this.current.getFullYear()-this.current.getFullYear()%this.step)}},TimeStep.prototype.hasNext=function(){return this.current.valueOf()<=this._end.valueOf()},TimeStep.prototype.next=function(){var t=this.current.valueOf();if(this.current.getMonth()<6)switch(this.scale){case TimeStep.SCALE.MILLISECOND:this.current=new Date(this.current.valueOf()+this.step);break;case TimeStep.SCALE.SECOND:this.current=new Date(this.current.valueOf()+1e3*this.step);break;case TimeStep.SCALE.MINUTE:this.current=new Date(this.current.valueOf()+1e3*this.step*60);break;case TimeStep.SCALE.HOUR:this.current=new Date(this.current.valueOf()+1e3*this.step*60*60);var e=this.current.getHours();this.current.setHours(e-e%this.step);break;case TimeStep.SCALE.WEEKDAY:case TimeStep.SCALE.DAY:this.current.setDate(this.current.getDate()+this.step);break;case TimeStep.SCALE.MONTH:this.current.setMonth(this.current.getMonth()+this.step);break;case TimeStep.SCALE.YEAR:this.current.setFullYear(this.current.getFullYear()+this.step)}else switch(this.scale){case TimeStep.SCALE.MILLISECOND:this.current=new Date(this.current.valueOf()+this.step);break;case TimeStep.SCALE.SECOND:this.current.setSeconds(this.current.getSeconds()+this.step);break;case TimeStep.SCALE.MINUTE:this.current.setMinutes(this.current.getMinutes()+this.step);break;case TimeStep.SCALE.HOUR:this.current.setHours(this.current.getHours()+this.step);break;case TimeStep.SCALE.WEEKDAY:case TimeStep.SCALE.DAY:this.current.setDate(this.current.getDate()+this.step);break;case TimeStep.SCALE.MONTH:this.current.setMonth(this.current.getMonth()+this.step);break;case TimeStep.SCALE.YEAR:this.current.setFullYear(this.current.getFullYear()+this.step)}if(1!=this.step)switch(this.scale){case TimeStep.SCALE.MILLISECOND:this.current.getMilliseconds()0&&(this.step=e),this.autoScale=!1},TimeStep.prototype.setAutoScale=function(t){this.autoScale=t},TimeStep.prototype.setMinimumStep=function(t){if(void 0!=t){var e=31104e6,i=2592e6,n=864e5,s=36e5,o=6e4,r=1e3,a=1;1e3*e>t&&(this.scale=TimeStep.SCALE.YEAR,this.step=1e3),500*e>t&&(this.scale=TimeStep.SCALE.YEAR,this.step=500),100*e>t&&(this.scale=TimeStep.SCALE.YEAR,this.step=100),50*e>t&&(this.scale=TimeStep.SCALE.YEAR,this.step=50),10*e>t&&(this.scale=TimeStep.SCALE.YEAR,this.step=10),5*e>t&&(this.scale=TimeStep.SCALE.YEAR,this.step=5),e>t&&(this.scale=TimeStep.SCALE.YEAR,this.step=1),3*i>t&&(this.scale=TimeStep.SCALE.MONTH,this.step=3),i>t&&(this.scale=TimeStep.SCALE.MONTH,this.step=1),5*n>t&&(this.scale=TimeStep.SCALE.DAY,this.step=5),2*n>t&&(this.scale=TimeStep.SCALE.DAY,this.step=2),n>t&&(this.scale=TimeStep.SCALE.DAY,this.step=1),n/2>t&&(this.scale=TimeStep.SCALE.WEEKDAY,this.step=1),4*s>t&&(this.scale=TimeStep.SCALE.HOUR,this.step=4),s>t&&(this.scale=TimeStep.SCALE.HOUR,this.step=1),15*o>t&&(this.scale=TimeStep.SCALE.MINUTE,this.step=15),10*o>t&&(this.scale=TimeStep.SCALE.MINUTE,this.step=10),5*o>t&&(this.scale=TimeStep.SCALE.MINUTE,this.step=5),o>t&&(this.scale=TimeStep.SCALE.MINUTE,this.step=1),15*r>t&&(this.scale=TimeStep.SCALE.SECOND,this.step=15),10*r>t&&(this.scale=TimeStep.SCALE.SECOND,this.step=10),5*r>t&&(this.scale=TimeStep.SCALE.SECOND,this.step=5),r>t&&(this.scale=TimeStep.SCALE.SECOND,this.step=1),200*a>t&&(this.scale=TimeStep.SCALE.MILLISECOND,this.step=200),100*a>t&&(this.scale=TimeStep.SCALE.MILLISECOND,this.step=100),50*a>t&&(this.scale=TimeStep.SCALE.MILLISECOND,this.step=50),10*a>t&&(this.scale=TimeStep.SCALE.MILLISECOND,this.step=10),5*a>t&&(this.scale=TimeStep.SCALE.MILLISECOND,this.step=5),a>t&&(this.scale=TimeStep.SCALE.MILLISECOND,this.step=1)}},TimeStep.prototype.snap=function(t){var e=new Date(t.valueOf());if(this.scale==TimeStep.SCALE.YEAR){var i=e.getFullYear()+Math.round(e.getMonth()/12);e.setFullYear(Math.round(i/this.step)*this.step),e.setMonth(0),e.setDate(0),e.setHours(0),e.setMinutes(0),e.setSeconds(0),e.setMilliseconds(0)}else if(this.scale==TimeStep.SCALE.MONTH)e.getDate()>15?(e.setDate(1),e.setMonth(e.getMonth()+1)):e.setDate(1),e.setHours(0),e.setMinutes(0),e.setSeconds(0),e.setMilliseconds(0);else if(this.scale==TimeStep.SCALE.DAY||this.scale==TimeStep.SCALE.WEEKDAY){switch(this.step){case 5:case 2:e.setHours(24*Math.round(e.getHours()/24));break;default:e.setHours(12*Math.round(e.getHours()/12))}e.setMinutes(0),e.setSeconds(0),e.setMilliseconds(0)}else if(this.scale==TimeStep.SCALE.HOUR){switch(this.step){case 4:e.setMinutes(60*Math.round(e.getMinutes()/60));break;default:e.setMinutes(30*Math.round(e.getMinutes()/30))}e.setSeconds(0),e.setMilliseconds(0)}else if(this.scale==TimeStep.SCALE.MINUTE){switch(this.step){case 15:case 10:e.setMinutes(5*Math.round(e.getMinutes()/5)),e.setSeconds(0);break;case 5:e.setSeconds(60*Math.round(e.getSeconds()/60));break;default:e.setSeconds(30*Math.round(e.getSeconds()/30))}e.setMilliseconds(0)}else if(this.scale==TimeStep.SCALE.SECOND)switch(this.step){case 15:case 10:e.setSeconds(5*Math.round(e.getSeconds()/5)),e.setMilliseconds(0);break;case 5:e.setMilliseconds(1e3*Math.round(e.getMilliseconds()/1e3));break;default:e.setMilliseconds(500*Math.round(e.getMilliseconds()/500))}else if(this.scale==TimeStep.SCALE.MILLISECOND){var n=this.step>5?this.step/2:1;e.setMilliseconds(Math.round(e.getMilliseconds()/n)*n)}return e},TimeStep.prototype.isMajor=function(){switch(this.scale){case TimeStep.SCALE.MILLISECOND:return 0==this.current.getMilliseconds();case TimeStep.SCALE.SECOND:return 0==this.current.getSeconds();case TimeStep.SCALE.MINUTE:return 0==this.current.getHours()&&0==this.current.getMinutes();case TimeStep.SCALE.HOUR:return 0==this.current.getHours();case TimeStep.SCALE.WEEKDAY:case TimeStep.SCALE.DAY:return 1==this.current.getDate();case TimeStep.SCALE.MONTH:return 0==this.current.getMonth();case TimeStep.SCALE.YEAR:return!1;default:return!1}},TimeStep.prototype.getLabelMinor=function(t){switch(void 0==t&&(t=this.current),this.scale){case TimeStep.SCALE.MILLISECOND:return moment(t).format("SSS");case TimeStep.SCALE.SECOND:return moment(t).format("s");case TimeStep.SCALE.MINUTE:return moment(t).format("HH:mm");case TimeStep.SCALE.HOUR:return moment(t).format("HH:mm");case TimeStep.SCALE.WEEKDAY:return moment(t).format("ddd D");case TimeStep.SCALE.DAY:return moment(t).format("D");case TimeStep.SCALE.MONTH:return moment(t).format("MMM");case TimeStep.SCALE.YEAR:return moment(t).format("YYYY");default:return""}},TimeStep.prototype.getLabelMajor=function(t){switch(void 0==t&&(t=this.current),this.scale){case TimeStep.SCALE.MILLISECOND:return moment(t).format("HH:mm:ss");case TimeStep.SCALE.SECOND:return moment(t).format("D MMMM HH:mm");case TimeStep.SCALE.MINUTE:case TimeStep.SCALE.HOUR:return moment(t).format("ddd D MMMM");case TimeStep.SCALE.WEEKDAY:case TimeStep.SCALE.DAY:return moment(t).format("MMMM YYYY");case TimeStep.SCALE.MONTH:return moment(t).format("YYYY");case TimeStep.SCALE.YEAR:return"";default:return""}},Stack.prototype.setOptions=function(t){util.extend(this.options,t)},Stack.prototype.update=function(){this._order(),this._stack()},Stack.prototype._order=function(){var t=this.itemset.items;if(!t)throw new Error("Cannot stack items: ItemSet does not contain items");var e=[],i=0;util.forEach(t,function(t){t.visible&&(e[i]=t,i++)});var n=this.options.order||this.defaultOptions.order;if("function"!=typeof n)throw new Error("Option order must be a function");e.sort(n),this.ordered=e},Stack.prototype._stack=function(){var t,e,i,n=this.ordered,s=this.options,o=s.orientation||this.defaultOptions.orientation,r="top"==o;for(i=s.margin&&void 0!==s.margin.item?s.margin.item:this.defaultOptions.margin.item,t=0,e=n.length;e>t;t++){var a=n[t],h=null;do h=this.checkOverlap(n,t,0,t-1,i),null!=h&&(a.top=r?h.top+h.height+i:h.top-a.height-i);while(h)}},Stack.prototype.checkOverlap=function(t,e,i,n,s){for(var o=this.collision,r=t[e],a=n;a>=i;a--){var h=t[a];if(o(r,h,s)&&a!=e)return h}return null},Stack.prototype.collision=function(t,e,i){return t.left-ie.left&&t.top-ie.top},Emitter(Range.prototype),Range.prototype.setOptions=function(t){util.extend(this.options,t),null!==this.start&&null!==this.end&&this.setRange(this.start,this.end)},Range.prototype.subscribe=function(t,e,i,n){function s(t){o._onMouseWheel(t,e,n)}var o=this;if("move"==i)t.on("dragstart",function(t){o._onDragStart(t,e)}),t.on("drag",function(t){o._onDrag(t,e,n)}),t.on("dragend",function(t){o._onDragEnd(t,e)}),t.on("hold",function(){o._onHold()});else{if("zoom"!=i)throw new TypeError('Unknown event "'+i+'". Choose "move" or "zoom".');t.on("mousewheel",s),t.on("DOMMouseScroll",s),t.on("touch",function(t){o._onTouch(t)}),t.on("pinch",function(t){o._onPinch(t,e,n)})}},Range.prototype.setRange=function(t,e){var i=this._applyRange(t,e);if(i){var n={start:this.start,end:this.end};this.emit("rangechange",n),this.emit("rangechanged",n)}},Range.prototype._applyRange=function(t,e){var i,n=null!=t?util.convert(t,"Date").valueOf():this.start,s=null!=e?util.convert(e,"Date").valueOf():this.end,o=null!=this.options.max?util.convert(this.options.max,"Date").valueOf():null,r=null!=this.options.min?util.convert(this.options.min,"Date").valueOf():null;if(isNaN(n)||null===n)throw new Error('Invalid start "'+t+'"');if(isNaN(s)||null===s)throw new Error('Invalid end "'+e+'"');if(n>s&&(s=n),null!==r&&r>n&&(i=r-n,n+=i,s+=i,null!=o&&s>o&&(s=o)),null!==o&&s>o&&(i=s-o,n-=i,s-=i,null!=r&&r>n&&(n=r)),null!==this.options.zoomMin){var a=parseFloat(this.options.zoomMin);0>a&&(a=0),a>s-n&&(this.end-this.start===a?(n=this.start,s=this.end):(i=a-(s-n),n-=i/2,s+=i/2))}if(null!==this.options.zoomMax){var h=parseFloat(this.options.zoomMax);0>h&&(h=0),s-n>h&&(this.end-this.start===h?(n=this.start,s=this.end):(i=s-n-h,n+=i/2,s-=i/2))}var d=this.start!=n||this.end!=s;return this.start=n,this.end=s,d},Range.prototype.getRange=function(){return{start:this.start,end:this.end}},Range.prototype.conversion=function(t){return Range.conversion(this.start,this.end,t)},Range.conversion=function(t,e,i){return 0!=i&&e-t!=0?{offset:t,scale:i/(e-t)}:{offset:0,scale:1}};var touchParams={};Range.prototype._onDragStart=function(t,e){if(!touchParams.ignore){touchParams.start=this.start,touchParams.end=this.end;var i=e.frame;i&&(i.style.cursor="move")}},Range.prototype._onDrag=function(t,e,i){if(validateDirection(i),!touchParams.ignore){var n="horizontal"==i?t.gesture.deltaX:t.gesture.deltaY,s=touchParams.end-touchParams.start,o="horizontal"==i?e.width:e.height,r=-n/o*s;this._applyRange(touchParams.start+r,touchParams.end+r),this.emit("rangechange",{start:this.start,end:this.end})}},Range.prototype._onDragEnd=function(t,e){touchParams.ignore||(e.frame&&(e.frame.style.cursor="auto"),this.emit("rangechanged",{start:this.start,end:this.end}))},Range.prototype._onMouseWheel=function(t,e,i){validateDirection(i);var n=0;if(t.wheelDelta?n=t.wheelDelta/120:t.detail&&(n=-t.detail/3),n){var s;s=0>n?1-n/5:1/(1+n/5);var o=util.fakeGesture(this,t),r=getPointer(o.center,e.frame),a=this._pointerToDate(e,i,r);this.zoom(s,a)}t.preventDefault()},Range.prototype._onTouch=function(t){touchParams.start=this.start,touchParams.end=this.end,touchParams.ignore=!1,touchParams.center=null;var e=ItemSet.itemFromTarget(t);e&&e.selected&&this.options.editable&&(touchParams.ignore=!0)},Range.prototype._onHold=function(){touchParams.ignore=!0},Range.prototype._onPinch=function(t,e,i){if(touchParams.ignore=!0,t.gesture.touches.length>1){touchParams.center||(touchParams.center=getPointer(t.gesture.center,e.frame));var n=1/t.gesture.scale,s=this._pointerToDate(e,i,touchParams.center),o=getPointer(t.gesture.center,e.frame),r=(this._pointerToDate(e,i,o),parseInt(s+(touchParams.start-s)*n)),a=parseInt(s+(touchParams.end-s)*n);this.setRange(r,a)}},Range.prototype._pointerToDate=function(t,e,i){var n;if("horizontal"==e){var s=t.width;return n=this.conversion(s),i.x/n.scale+n.offset}var o=t.height;return n=this.conversion(o),i.y/n.scale+n.offset},Range.prototype.zoom=function(t,e){null==e&&(e=(this.start+this.end)/2);var i=e+(this.start-e)*t,n=e+(this.end-e)*t;this.setRange(i,n)},Range.prototype.move=function(t){var e=this.end-this.start,i=this.start+e*t,n=this.end+e*t;this.start=i,this.end=n},Range.prototype.moveTo=function(t){var e=(this.start+this.end)/2,i=e-t,n=this.start-i,s=this.end-i;this.setRange(n,s)},Emitter(Controller.prototype),Controller.prototype.add=function(t){if(void 0==t.id)throw new Error("Component has no field id");if(!(t instanceof Component||t instanceof Controller))throw new TypeError("Component must be an instance of prototype Component or Controller");t.setController(this),this.components[t.id]=t},Controller.prototype.remove=function(t){var e;for(e in this.components)if(this.components.hasOwnProperty(e)&&(e==t||this.components[e]===t))break;e&&(this.components[e].setController(null),delete this.components[e])},Controller.prototype.repaint=function t(){function t(n,s){s in i||(n.depends&&n.depends.forEach(function(e){t(e,e.id)}),n.parent&&t(n.parent,n.parent.id),e=n.repaint()||e,i[s]=!0)}var e=!1;this.repaintTimer&&(clearTimeout(this.repaintTimer),this.repaintTimer=void 0);var i={};util.forEach(this.components,t),this.emit("repaint"),e&&this.reflow()},Controller.prototype.reflow=function e(){function e(n,s){s in i||(n.depends&&n.depends.forEach(function(t){e(t,t.id)}),n.parent&&e(n.parent,n.parent.id),t=n.reflow()||t,i[s]=!0)}var t=!1;this.reflowTimer&&(clearTimeout(this.reflowTimer),this.reflowTimer=void 0);var i={};util.forEach(this.components,e),this.emit("reflow"),t&&this.repaint()},Component.prototype.setOptions=function(t){t&&(util.extend(this.options,t),this.controller&&(this.requestRepaint(),this.requestReflow()))},Component.prototype.getOption=function(t){var e;return this.options&&(e=this.options[t]),void 0===e&&this.defaultOptions&&(e=this.defaultOptions[t]),e},Component.prototype.setController=function(t){this.controller=t||null},Component.prototype.getController=function(){return this.controller},Component.prototype.getContainer=function(){return null},Component.prototype.getFrame=function(){return this.frame},Component.prototype.repaint=function(){return!1},Component.prototype.reflow=function(){return!1},Component.prototype.hide=function(){return this.frame&&this.frame.parentNode?(this.frame.parentNode.removeChild(this.frame),!0):!1},Component.prototype.show=function(){return this.frame&&this.frame.parentNode?!1:this.repaint()},Component.prototype.requestRepaint=function(){if(!this.controller)throw new Error("Cannot request a repaint: no controller configured");this.controller.emit("request-repaint")},Component.prototype.requestReflow=function(){if(!this.controller)throw new Error("Cannot request a reflow: no controller configured");this.controller.emit("request-reflow")},Panel.prototype=new Component,Panel.prototype.setOptions=Component.prototype.setOptions,Panel.prototype.getContainer=function(){return this.frame},Panel.prototype.repaint=function(){var t=0,e=util.updateProperty,i=util.option.asSize,n=this.options,s=this.frame;if(!s){s=document.createElement("div"),s.className="vpanel";var o=n.className;o&&("function"==typeof o?util.addClassName(s,String(o())):util.addClassName(s,String(o))),this.frame=s,t+=1}if(!s.parentNode){if(!this.parent)throw new Error("Cannot repaint panel: no parent attached");var r=this.parent.getContainer();if(!r)throw new Error("Cannot repaint panel: parent has no container element");r.appendChild(s),t+=1}return t+=e(s.style,"top",i(n.top,"0px")),t+=e(s.style,"left",i(n.left,"0px")),t+=e(s.style,"width",i(n.width,"100%")),t+=e(s.style,"height",i(n.height,"100%")),t>0},Panel.prototype.reflow=function(){var t=0,e=util.updateProperty,i=this.frame;return i?(t+=e(this,"top",i.offsetTop),t+=e(this,"left",i.offsetLeft),t+=e(this,"width",i.offsetWidth),t+=e(this,"height",i.offsetHeight)):t+=1,t>0},RootPanel.prototype=new Panel,RootPanel.prototype.setOptions=Component.prototype.setOptions,RootPanel.prototype.repaint=function(){var t=0,e=util.updateProperty,i=util.option.asSize,n=this.options,s=this.frame;if(s||(s=document.createElement("div"),this.frame=s,this._registerListeners(),t+=1),!s.parentNode){if(!this.container)throw new Error("Cannot repaint root panel: no container attached");this.container.appendChild(s),t+=1}s.className="vis timeline rootpanel "+n.orientation+(n.editable?" editable":"");var o=n.className;return o&&util.addClassName(s,util.option.asString(o)),t+=e(s.style,"top",i(n.top,"0px")),t+=e(s.style,"left",i(n.left,"0px")),t+=e(s.style,"width",i(n.width,"100%")),t+=e(s.style,"height",i(n.height,"100%")),this._updateWatch(),t>0},RootPanel.prototype.reflow=function(){var t=0,e=util.updateProperty,i=this.frame;return i?(t+=e(this,"top",i.offsetTop),t+=e(this,"left",i.offsetLeft),t+=e(this,"width",i.offsetWidth),t+=e(this,"height",i.offsetHeight)):t+=1,t>0},RootPanel.prototype._updateWatch=function(){var t=this.getOption("autoResize");t?this._watch():this._unwatch()},RootPanel.prototype._watch=function(){var t=this;this._unwatch();var e=function(){var e=t.getOption("autoResize");return e?void(t.frame&&(t.frame.clientWidth!=t.width||t.frame.clientHeight!=t.height)&&t.requestReflow()):void t._unwatch()};util.addEventListener(window,"resize",e),this.watchTimer=setInterval(e,1e3)},RootPanel.prototype._unwatch=function(){this.watchTimer&&(clearInterval(this.watchTimer),this.watchTimer=void 0)},RootPanel.prototype.setController=function(t){this.controller=t||null,this.controller?this._registerListeners():this._unregisterListeners()},RootPanel.prototype._registerListeners=function(){if(this.frame&&this.controller&&!this.hammer){this.hammer=Hammer(this.frame,{prevent_default:!0});for(var t in this.listeners)this.listeners.hasOwnProperty(t)&&this.hammer.on(t,this.listeners[t])}},RootPanel.prototype._unregisterListeners=function(){if(this.hammer){for(var t in this.listeners)this.listeners.hasOwnProperty(t)&&this.hammer.off(t,this.listeners[t]);this.hammer=null}},TimeAxis.prototype=new Component,TimeAxis.prototype.setOptions=Component.prototype.setOptions,TimeAxis.prototype.setRange=function(t){if(!(t instanceof Range||t&&t.start&&t.end))throw new TypeError("Range must be an instance of Range, or an object containing start and end.");this.range=t},TimeAxis.prototype.toTime=function(t){var e=this.conversion;return new Date(t/e.scale+e.offset)},TimeAxis.prototype.toScreen=function(t){var e=this.conversion;return(t.valueOf()-e.offset)*e.scale},TimeAxis.prototype.repaint=function(){var t=0,e=util.updateProperty,i=util.option.asSize,n=this.options,s=this.getOption("orientation"),o=this.props,r=this.step,a=this.frame;if(a||(a=document.createElement("div"),this.frame=a,t+=1),a.className="axis",!a.parentNode){if(!this.parent)throw new Error("Cannot repaint time axis: no parent attached");var h=this.parent.getContainer();if(!h)throw new Error("Cannot repaint time axis: parent has no container element");h.appendChild(a),t+=1}var d=a.parentNode;if(d){var l=a.nextSibling;d.removeChild(a);var c="bottom"==s&&this.props.parentHeight&&this.height?this.props.parentHeight-this.height+"px":"0px";if(t+=e(a.style,"top",i(n.top,c)),t+=e(a.style,"left",i(n.left,"0px")),t+=e(a.style,"width",i(n.width,"100%")),t+=e(a.style,"height",i(n.height,this.height+"px")),this._repaintMeasureChars(),this.step){this._repaintStart(),r.first();for(var u=void 0,p=0;r.hasNext()&&1e3>p;){p++;var f=r.getCurrent(),m=this.toScreen(f),g=r.isMajor();this.getOption("showMinorLabels")&&this._repaintMinorText(m,r.getLabelMinor()),g&&this.getOption("showMajorLabels")?(m>0&&(void 0==u&&(u=m),this._repaintMajorText(m,r.getLabelMajor())),this._repaintMajorLine(m)):this._repaintMinorLine(m),r.next()}if(this.getOption("showMajorLabels")){var v=this.toTime(0),y=r.getLabelMajor(v),_=y.length*(o.majorCharWidth||10)+10;(void 0==u||u>_)&&this._repaintMajorText(0,y)}this._repaintEnd()}this._repaintLine(),l?d.insertBefore(a,l):d.appendChild(a)}return t>0},TimeAxis.prototype._repaintStart=function(){var t=this.dom,e=t.redundant;e.majorLines=t.majorLines,e.majorTexts=t.majorTexts,e.minorLines=t.minorLines,e.minorTexts=t.minorTexts,t.majorLines=[],t.majorTexts=[],t.minorLines=[],t.minorTexts=[]},TimeAxis.prototype._repaintEnd=function(){util.forEach(this.dom.redundant,function(t){for(;t.length;){var e=t.pop();e&&e.parentNode&&e.parentNode.removeChild(e)}})},TimeAxis.prototype._repaintMinorText=function(t,e){var i=this.dom.redundant.minorTexts.shift();if(!i){var n=document.createTextNode("");i=document.createElement("div"),i.appendChild(n),i.className="text minor",this.frame.appendChild(i)}this.dom.minorTexts.push(i),i.childNodes[0].nodeValue=e,i.style.left=t+"px",i.style.top=this.props.minorLabelTop+"px"},TimeAxis.prototype._repaintMajorText=function(t,e){var i=this.dom.redundant.majorTexts.shift();if(!i){var n=document.createTextNode(e);i=document.createElement("div"),i.className="text major",i.appendChild(n),this.frame.appendChild(i)}this.dom.majorTexts.push(i),i.childNodes[0].nodeValue=e,i.style.top=this.props.majorLabelTop+"px",i.style.left=t+"px"},TimeAxis.prototype._repaintMinorLine=function(t){var e=this.dom.redundant.minorLines.shift();e||(e=document.createElement("div"),e.className="grid vertical minor",this.frame.appendChild(e)),this.dom.minorLines.push(e);var i=this.props;e.style.top=i.minorLineTop+"px",e.style.height=i.minorLineHeight+"px",e.style.left=t-i.minorLineWidth/2+"px"},TimeAxis.prototype._repaintMajorLine=function(t){var e=this.dom.redundant.majorLines.shift();e||(e=document.createElement("DIV"),e.className="grid vertical major",this.frame.appendChild(e)),this.dom.majorLines.push(e);var i=this.props;e.style.top=i.majorLineTop+"px",e.style.left=t-i.majorLineWidth/2+"px",e.style.height=i.majorLineHeight+"px"},TimeAxis.prototype._repaintLine=function(){{var t=this.dom.line,e=this.frame;this.options}this.getOption("showMinorLabels")||this.getOption("showMajorLabels")?(t?(e.removeChild(t),e.appendChild(t)):(t=document.createElement("div"),t.className="grid horizontal major",e.appendChild(t),this.dom.line=t),t.style.top=this.props.lineTop+"px"):t&&t.parentElement&&(e.removeChild(t.line),delete this.dom.line)},TimeAxis.prototype._repaintMeasureChars=function(){var t,e=this.dom;if(!e.measureCharMinor){t=document.createTextNode("0");var i=document.createElement("DIV");i.className="text minor measure",i.appendChild(t),this.frame.appendChild(i),e.measureCharMinor=i}if(!e.measureCharMajor){t=document.createTextNode("0");var n=document.createElement("DIV");n.className="text major measure",n.appendChild(t),this.frame.appendChild(n),e.measureCharMajor=n}},TimeAxis.prototype.reflow=function(){var t=0,e=util.updateProperty,i=this.frame,n=this.range;if(!n)throw new Error("Cannot repaint time axis: no range configured");if(i){t+=e(this,"top",i.offsetTop),t+=e(this,"left",i.offsetLeft);var s=this.props,o=this.getOption("showMinorLabels"),r=this.getOption("showMajorLabels"),a=this.dom.measureCharMinor,h=this.dom.measureCharMajor;a&&(s.minorCharHeight=a.clientHeight,s.minorCharWidth=a.clientWidth),h&&(s.majorCharHeight=h.clientHeight,s.majorCharWidth=h.clientWidth);var d=i.parentNode?i.parentNode.offsetHeight:0;switch(d!=s.parentHeight&&(s.parentHeight=d,t+=1),this.getOption("orientation")){case"bottom":s.minorLabelHeight=o?s.minorCharHeight:0,s.majorLabelHeight=r?s.majorCharHeight:0,s.minorLabelTop=0,s.majorLabelTop=s.minorLabelTop+s.minorLabelHeight,s.minorLineTop=-this.top,s.minorLineHeight=Math.max(this.top+s.majorLabelHeight,0),s.minorLineWidth=1,s.majorLineTop=-this.top,s.majorLineHeight=Math.max(this.top+s.minorLabelHeight+s.majorLabelHeight,0),s.majorLineWidth=1,s.lineTop=0;break;case"top":s.minorLabelHeight=o?s.minorCharHeight:0,s.majorLabelHeight=r?s.majorCharHeight:0,s.majorLabelTop=0,s.minorLabelTop=s.majorLabelTop+s.majorLabelHeight,s.minorLineTop=s.minorLabelTop,s.minorLineHeight=Math.max(d-s.majorLabelHeight-this.top),s.minorLineWidth=1,s.majorLineTop=0,s.majorLineHeight=Math.max(d-this.top),s.majorLineWidth=1,s.lineTop=s.majorLabelHeight+s.minorLabelHeight;break;default:throw new Error('Unkown orientation "'+this.getOption("orientation")+'"')}var l=s.minorLabelHeight+s.majorLabelHeight;t+=e(this,"width",i.offsetWidth),t+=e(this,"height",l),this._updateConversion();var c=util.convert(n.start,"Number"),u=util.convert(n.end,"Number"),p=this.toTime(5*(s.minorCharWidth||10)).valueOf()-this.toTime(0).valueOf();this.step=new TimeStep(new Date(c),new Date(u),p),t+=e(s.range,"start",c),t+=e(s.range,"end",u),t+=e(s.range,"minimumStep",p.valueOf())}return t>0},TimeAxis.prototype._updateConversion=function(){var t=this.range;if(!t)throw new Error("No range configured");this.conversion=t.conversion?t.conversion(this.width):Range.conversion(t.start,t.end,this.width)},TimeAxis.prototype.snap=function(t){return this.step.snap(t)},CurrentTime.prototype=new Component,CurrentTime.prototype.setOptions=Component.prototype.setOptions,CurrentTime.prototype.getContainer=function(){return this.frame},CurrentTime.prototype.repaint=function(){var t=this.frame,e=this.parent,i=e.parent.getContainer();if(!e)throw new Error("Cannot repaint bar: no parent attached");if(!i)throw new Error("Cannot repaint bar: parent has no container element");if(!this.getOption("showCurrentTime"))return t&&(i.removeChild(t),delete this.frame),!1;t||(t=document.createElement("div"),t.className="currenttime",t.style.position="absolute",t.style.top="0px",t.style.height="100%",i.appendChild(t),this.frame=t),e.conversion||e._updateConversion();var n=new Date,s=e.toScreen(n);t.style.left=s+"px",t.title="Current time: "+n,void 0!==this.currentTimeTimer&&(clearTimeout(this.currentTimeTimer),delete this.currentTimeTimer);var o=this,r=1/e.conversion.scale/2;return 30>r&&(r=30),this.currentTimeTimer=setTimeout(function(){o.repaint()},r),!1},CustomTime.prototype=new Component,Emitter(CustomTime.prototype),CustomTime.prototype.setOptions=Component.prototype.setOptions,CustomTime.prototype.getContainer=function(){return this.frame},CustomTime.prototype.repaint=function(){var t=this.frame,e=this.parent;if(!e)throw new Error("Cannot repaint bar: no parent attached");var i=e.parent.getContainer();if(!i)throw new Error("Cannot repaint bar: parent has no container element");if(!this.getOption("showCustomTime"))return t&&(i.removeChild(t),delete this.frame),!1;if(!t){t=document.createElement("div"),t.className="customtime",t.style.position="absolute",t.style.top="0px",t.style.height="100%",i.appendChild(t);var n=document.createElement("div");n.style.position="relative",n.style.top="0px",n.style.left="-10px",n.style.height="100%",n.style.width="20px",t.appendChild(n),this.frame=t,this.hammer=Hammer(t,{prevent_default:!0}),this.hammer.on("dragstart",this._onDragStart.bind(this)),this.hammer.on("drag",this._onDrag.bind(this)),this.hammer.on("dragend",this._onDragEnd.bind(this))}e.conversion||e._updateConversion();var s=e.toScreen(this.customTime);return t.style.left=s+"px",t.title="Time: "+this.customTime,!1},CustomTime.prototype.setCustomTime=function(t){this.customTime=new Date(t.valueOf()),this.repaint()},CustomTime.prototype.getCustomTime=function(){return new Date(this.customTime.valueOf())},CustomTime.prototype._onDragStart=function(t){this.eventParams.customTime=this.customTime,t.stopPropagation(),t.preventDefault()},CustomTime.prototype._onDrag=function(t){var e=t.gesture.deltaX,i=this.parent.toScreen(this.eventParams.customTime)+e,n=this.parent.toTime(i);this.setCustomTime(n),this.controller&&this.controller.emit("timechange",{time:this.customTime}),t.stopPropagation(),t.preventDefault()},CustomTime.prototype._onDragEnd=function(t){this.controller&&this.controller.emit("timechanged",{time:this.customTime}),t.stopPropagation(),t.preventDefault()},ItemSet.prototype=new Panel,ItemSet.types={box:ItemBox,range:ItemRange,rangeoverflow:ItemRangeOverflow,point:ItemPoint},ItemSet.prototype.setOptions=Component.prototype.setOptions,ItemSet.prototype.setController=function(t){var e; +if(this.controller)for(e in this.eventListeners)this.eventListeners.hasOwnProperty(e)&&this.controller.off(e,this.eventListeners[e]);if(this.controller=t||null,this.controller)for(e in this.eventListeners)this.eventListeners.hasOwnProperty(e)&&this.controller.on(e,this.eventListeners[e])},function(t){var e=null;Object.defineProperty(t,"controller",{get:function(){return e},set:function(){}})}(this),ItemSet.prototype.setRange=function(t){if(!(t instanceof Range||t&&t.start&&t.end))throw new TypeError("Range must be an instance of Range, or an object containing start and end.");this.range=t},ItemSet.prototype.setSelection=function(t){var e,i,n,s;if(t){if(!Array.isArray(t))throw new TypeError("Array expected");for(e=0,i=this.selection.length;i>e;e++)n=this.selection[e],s=this.items[n],s&&s.unselect();for(this.selection=[],e=0,i=t.length;i>e;e++)n=t[e],s=this.items[n],s&&(this.selection.push(n),s.select());this.controller&&this.requestRepaint()}},ItemSet.prototype.getSelection=function(){return this.selection.concat([])},ItemSet.prototype._deselect=function(t){for(var e=this.selection,i=0,n=e.length;n>i;i++)if(e[i]==t){e.splice(i,1);break}},ItemSet.prototype.repaint=function(){var t=0,e=util.updateProperty,i=util.option.asSize,n=this.options,s=this.getOption("orientation"),o=this.defaultOptions,r=this.frame;if(!r){r=document.createElement("div"),r.className="itemset",r["timeline-itemset"]=this;var a=n.className;a&&util.addClassName(r,util.option.asString(a));var h=document.createElement("div");h.className="background",r.appendChild(h),this.dom.background=h;var d=document.createElement("div");d.className="foreground",r.appendChild(d),this.dom.foreground=d;var l=document.createElement("div");l.className="itemset-axis",this.dom.axis=l,this.frame=r,t+=1}if(!this.parent)throw new Error("Cannot repaint itemset: no parent attached");var c=this.parent.getContainer();if(!c)throw new Error("Cannot repaint itemset: parent has no container element");r.parentNode||(c.appendChild(r),t+=1),this.dom.axis.parentNode||(c.appendChild(this.dom.axis),t+=1),t+=e(r.style,"left",i(n.left,"0px")),t+=e(r.style,"top",i(n.top,"0px")),t+=e(r.style,"width",i(n.width,"100%")),t+=e(r.style,"height",i(n.height,this.height+"px")),t+=e(this.dom.axis.style,"left",i(n.left,"0px")),t+=e(this.dom.axis.style,"width",i(n.width,"100%")),t+="bottom"==s?e(this.dom.axis.style,"top",this.height+this.top+"px"):e(this.dom.axis.style,"top",this.top+"px"),this._updateConversion();var u=this,p=this.queue,f=this.itemsData,m=this.items,g={};for(var v in p)if(p.hasOwnProperty(v)){var y=p[v],_=m[v],w=y.action;switch(w){case"add":case"update":var b=f&&f.get(v,g);if(b){var S=b.type||b.start&&b.end&&"range"||n.type||"box",E=ItemSet.types[S];if(_&&(E&&_ instanceof E?(_.data=b,t++):(t+=_.hide(),_=null)),!_){if(!E)throw new TypeError('Unknown item type "'+S+'"');_=new E(u,b,n,o),_.id=y.id,t++}_.repaint(),m[v]=_}delete p[v];break;case"remove":_&&(_.selected&&u._deselect(v),t+=_.hide()),delete m[v],delete p[v];break;default:console.log('Error: unknown action "'+w+'"')}}return util.forEach(this.items,function(e){e.visible?(t+=e.show(),e.reposition()):t+=e.hide()}),t>0},ItemSet.prototype.getForeground=function(){return this.dom.foreground},ItemSet.prototype.getBackground=function(){return this.dom.background},ItemSet.prototype.getAxis=function(){return this.dom.axis},ItemSet.prototype.reflow=function(){var t=0,e=this.options,i=e.margin&&e.margin.axis||this.defaultOptions.margin.axis,n=e.margin&&e.margin.item||this.defaultOptions.margin.item,s=util.updateProperty,o=util.option.asNumber,r=util.option.asSize,a=this.frame;if(a){this._updateConversion(),util.forEach(this.items,function(e){t+=e.reflow()}),this.stack.update();var h,d=o(e.maxHeight),l=null!=r(e.height);if(l)h=a.offsetHeight;else{var c=this.stack.ordered;if(c.length){var u=c[0].top,p=c[0].top+c[0].height;util.forEach(c,function(t){u=Math.min(u,t.top),p=Math.max(p,t.top+t.height)}),h=p-u+i+n}else h=i+n}null!=d&&(h=Math.min(h,d)),t+=s(this,"height",h),t+=s(this,"top",a.offsetTop),t+=s(this,"left",a.offsetLeft),t+=s(this,"width",a.offsetWidth)}else t+=1;return t>0},ItemSet.prototype.hide=function(){var t=!1;return this.frame&&this.frame.parentNode&&(this.frame.parentNode.removeChild(this.frame),t=!0),this.dom.axis&&this.dom.axis.parentNode&&(this.dom.axis.parentNode.removeChild(this.dom.axis),t=!0),t},ItemSet.prototype.setItems=function(t){var e,i=this,n=this.itemsData;if(t){if(!(t instanceof DataSet||t instanceof DataView))throw new TypeError("Data must be an instance of DataSet");this.itemsData=t}else this.itemsData=null;if(n&&(util.forEach(this.listeners,function(t,e){n.unsubscribe(e,t)}),e=n.getIds(),this._onRemove(e)),this.itemsData){var s=this.id;util.forEach(this.listeners,function(t,e){i.itemsData.on(e,t,s)}),e=this.itemsData.getIds(),this._onAdd(e)}},ItemSet.prototype.getItems=function(){return this.itemsData},ItemSet.prototype.removeItem=function(t){var e=this.itemsData.get(t),i=this._myDataSet();e&&this.options.onRemove(e,function(t){t&&i.remove(t)})},ItemSet.prototype._onUpdate=function(t){this._toQueue("update",t)},ItemSet.prototype._onAdd=function(t){this._toQueue("add",t)},ItemSet.prototype._onRemove=function(t){this._toQueue("remove",t)},ItemSet.prototype._toQueue=function(t,e){var i=this.queue;e.forEach(function(e){i[e]={id:e,action:t}}),this.controller&&this.requestRepaint()},ItemSet.prototype._updateConversion=function(){var t=this.range;if(!t)throw new Error("No range configured");this.conversion=t.conversion?t.conversion(this.width):Range.conversion(t.start,t.end,this.width)},ItemSet.prototype.toTime=function(t){var e=this.conversion;return new Date(t/e.scale+e.offset)},ItemSet.prototype.toScreen=function(t){var e=this.conversion;return(t.valueOf()-e.offset)*e.scale},ItemSet.prototype._onDragStart=function(t){if(this.options.editable){var e=ItemSet.itemFromTarget(t),i=this;if(e&&e.selected){var n=t.target.dragLeftItem,s=t.target.dragRightItem;this.touchParams.itemProps=n?[{item:n,start:e.data.start.valueOf()}]:s?[{item:s,end:e.data.end.valueOf()}]:this.getSelection().map(function(t){var e=i.items[t],n={item:e};return"start"in e.data&&(n.start=e.data.start.valueOf()),"end"in e.data&&(n.end=e.data.end.valueOf()),n}),t.stopPropagation()}}},ItemSet.prototype._onDrag=function(t){if(this.touchParams.itemProps){var e=this.options.snap||null,i=t.gesture.deltaX,n=i/this.conversion.scale;this.touchParams.itemProps.forEach(function(t){if("start"in t){var i=new Date(t.start+n);t.item.data.start=e?e(i):i}if("end"in t){var s=new Date(t.end+n);t.item.data.end=e?e(s):s}}),this.requestReflow(),t.stopPropagation()}},ItemSet.prototype._onDragEnd=function(t){if(this.touchParams.itemProps){var e=[],i=this,n=this._myDataSet();this.touchParams.itemProps.forEach(function(t){var s=t.item.id,o=i.itemsData.get(s),r=!1;"start"in t.item.data&&(r=t.start!=t.item.data.start.valueOf(),o.start=util.convert(t.item.data.start,n.convert.start)),"end"in t.item.data&&(r=r||t.end!=t.item.data.end.valueOf(),o.end=util.convert(t.item.data.end,n.convert.end)),r&&i.options.onMove(o,function(n){n?e.push(n):("start"in t&&(t.item.data.start=t.start),"end"in t&&(t.item.data.end=t.end),i.requestReflow())})}),this.touchParams.itemProps=null,e.length&&n.update(e),t.stopPropagation()}},ItemSet.itemFromTarget=function(t){for(var e=t.target;e;){if(e.hasOwnProperty("timeline-item"))return e["timeline-item"];e=e.parentNode}return null},ItemSet.itemSetFromTarget=function(t){for(var e=t.target;e;){if(e.hasOwnProperty("timeline-itemset"))return e["timeline-itemset"];e=e.parentNode}return null},ItemSet.prototype._myDataSet=function(){for(var t=this.itemsData;t instanceof DataView;)t=t.data;return t},Item.prototype.select=function(){this.selected=!0,this.visible&&this.repaint()},Item.prototype.unselect=function(){this.selected=!1,this.visible&&this.repaint()},Item.prototype.show=function(){return!1},Item.prototype.hide=function(){return!1},Item.prototype.repaint=function(){return!1},Item.prototype.reflow=function(){return!1},Item.prototype.setOffset=function(t){this.offset=t},Item.prototype._repaintDeleteButton=function(t){if(this.selected&&this.options.editable&&!this.dom.deleteButton){var e=this.parent,i=this.id,n=document.createElement("div");n.className="delete",n.title="Delete this item",Hammer(n,{preventDefault:!0}).on("tap",function(t){e.removeItem(i),t.stopPropagation()}),t.appendChild(n),this.dom.deleteButton=n}else!this.selected&&this.dom.deleteButton&&(this.dom.deleteButton.parentNode&&this.dom.deleteButton.parentNode.removeChild(this.dom.deleteButton),this.dom.deleteButton=null)},ItemBox.prototype=new Item(null,null),ItemBox.prototype.repaint=function(){var t=!1,e=this.dom;if(e||(this._create(),e=this.dom,t=!0),e){if(!this.parent)throw new Error("Cannot repaint item: no parent attached");if(!e.box.parentNode){var i=this.parent.getForeground();if(!i)throw new Error("Cannot repaint time axis: parent has no foreground container element");i.appendChild(e.box),t=!0}if(!e.line.parentNode){var n=this.parent.getBackground();if(!n)throw new Error("Cannot repaint time axis: parent has no background container element");n.appendChild(e.line),t=!0}if(!e.dot.parentNode){var s=this.parent.getAxis();if(!n)throw new Error("Cannot repaint time axis: parent has no axis container element");s.appendChild(e.dot),t=!0}if(this._repaintDeleteButton(e.box),this.data.content!=this.content){if(this.content=this.data.content,this.content instanceof Element)e.content.innerHTML="",e.content.appendChild(this.content);else{if(void 0==this.data.content)throw new Error('Property "content" missing in item '+this.data.id);e.content.innerHTML=this.content}t=!0}var o=(this.data.className?" "+this.data.className:"")+(this.selected?" selected":"");this.className!=o&&(this.className=o,e.box.className="item box"+o,e.line.className="item line"+o,e.dot.className="item dot"+o,t=!0)}return t},ItemBox.prototype.show=function(){return this.dom&&this.dom.box.parentNode?!1:this.repaint()},ItemBox.prototype.hide=function(){var t=!1,e=this.dom;return e&&(e.box.parentNode&&(e.box.parentNode.removeChild(e.box),t=!0),e.line.parentNode&&e.line.parentNode.removeChild(e.line),e.dot.parentNode&&e.dot.parentNode.removeChild(e.dot)),t},ItemBox.prototype.reflow=function(){var t,e,i,n,s,o,r,a,h,d,l,c,u=0;if(void 0==this.data.start)throw new Error('Property "start" missing in item '+this.data.id);if(l=this.data,c=this.parent&&this.parent.range,l&&c){var p=c.end-c.start;this.visible=l.start>c.start-p&&l.start0},ItemBox.prototype._create=function(){var t=this.dom;t||(this.dom=t={},t.box=document.createElement("DIV"),t.content=document.createElement("DIV"),t.content.className="content",t.box.appendChild(t.content),t.line=document.createElement("DIV"),t.line.className="line",t.dot=document.createElement("DIV"),t.dot.className="dot",t.box["timeline-item"]=this)},ItemBox.prototype.reposition=function(){var t=this.dom,e=this.props,i=this.options.orientation||this.defaultOptions.orientation;if(t){var n=t.box,s=t.line,o=t.dot;n.style.left=this.left+"px",n.style.top=this.top+"px",s.style.left=e.line.left+"px","top"==i?(s.style.top="0px",s.style.height=this.top+"px"):(s.style.top=this.top+this.height+"px",s.style.height=Math.max(this.parent.height-this.top-this.height+this.props.dot.height/2,0)+"px"),o.style.left=e.dot.left+"px",o.style.top=e.dot.top+"px"}},ItemPoint.prototype=new Item(null,null),ItemPoint.prototype.repaint=function(){var t=!1,e=this.dom;if(e||(this._create(),e=this.dom,t=!0),e){if(!this.parent)throw new Error("Cannot repaint item: no parent attached");var i=this.parent.getForeground();if(!i)throw new Error("Cannot repaint time axis: parent has no foreground container element");if(e.point.parentNode||(i.appendChild(e.point),i.appendChild(e.point),t=!0),this.data.content!=this.content){if(this.content=this.data.content,this.content instanceof Element)e.content.innerHTML="",e.content.appendChild(this.content);else{if(void 0==this.data.content)throw new Error('Property "content" missing in item '+this.data.id);e.content.innerHTML=this.content}t=!0}this._repaintDeleteButton(e.point);var n=(this.data.className?" "+this.data.className:"")+(this.selected?" selected":"");this.className!=n&&(this.className=n,e.point.className="item point"+n,t=!0)}return t},ItemPoint.prototype.show=function(){return this.dom&&this.dom.point.parentNode?!1:this.repaint()},ItemPoint.prototype.hide=function(){var t=!1,e=this.dom;return e&&e.point.parentNode&&(e.point.parentNode.removeChild(e.point),t=!0),t},ItemPoint.prototype.reflow=function(){var t,e,i,n,s,o,r,a,h,d,l=0;if(void 0==this.data.start)throw new Error('Property "start" missing in item '+this.data.id);if(h=this.data,d=this.parent&&this.parent.range,h&&d){var c=d.end-d.start;this.visible=h.start>d.start-c&&h.start0},ItemPoint.prototype._create=function(){var t=this.dom;t||(this.dom=t={},t.point=document.createElement("div"),t.content=document.createElement("div"),t.content.className="content",t.point.appendChild(t.content),t.dot=document.createElement("div"),t.dot.className="dot",t.point.appendChild(t.dot),t.point["timeline-item"]=this)},ItemPoint.prototype.reposition=function(){var t=this.dom,e=this.props;t&&(t.point.style.top=this.top+"px",t.point.style.left=this.left+"px",t.content.style.marginLeft=e.content.marginLeft+"px",t.dot.style.top=e.dot.top+"px")},ItemRange.prototype=new Item(null,null),ItemRange.prototype.repaint=function(){var t=!1,e=this.dom;if(e||(this._create(),e=this.dom,t=!0),e){if(!this.parent)throw new Error("Cannot repaint item: no parent attached");var i=this.parent.getForeground();if(!i)throw new Error("Cannot repaint time axis: parent has no foreground container element");if(e.box.parentNode||(i.appendChild(e.box),t=!0),this.data.content!=this.content){if(this.content=this.data.content,this.content instanceof Element)e.content.innerHTML="",e.content.appendChild(this.content);else{if(void 0==this.data.content)throw new Error('Property "content" missing in item '+this.data.id);e.content.innerHTML=this.content}t=!0}this._repaintDeleteButton(e.box),this._repaintDragLeft(),this._repaintDragRight();var n=(this.data.className?" "+this.data.className:"")+(this.selected?" selected":"");this.className!=n&&(this.className=n,e.box.className="item range"+n,t=!0)}return t},ItemRange.prototype.show=function(){return this.dom&&this.dom.box.parentNode?!1:this.repaint()},ItemRange.prototype.hide=function(){var t=!1,e=this.dom;return e&&e.box.parentNode&&(e.box.parentNode.removeChild(e.box),t=!0),t},ItemRange.prototype.reflow=function(){var t,e,i,n,s,o,r,a,h,d,l,c,u,p,f,m,g=0;if(void 0==this.data.start)throw new Error('Property "start" missing in item '+this.data.id);if(void 0==this.data.end)throw new Error('Property "end" missing in item '+this.data.id);return h=this.data,d=this.parent&&this.parent.range,this.visible=h&&d?h.startd.start:!1,this.visible&&(t=this.dom,t?(e=this.props,i=this.options,o=this.parent,r=o.toScreen(this.data.start)+this.offset,a=o.toScreen(this.data.end)+this.offset,l=util.updateProperty,c=t.box,u=o.width,f=i.orientation||this.defaultOptions.orientation,n=i.margin&&i.margin.axis||this.defaultOptions.margin.axis,s=i.padding||this.defaultOptions.padding,g+=l(e.content,"width",t.content.offsetWidth),g+=l(this,"height",c.offsetHeight),-u>r&&(r=-u),a>2*u&&(a=2*u),p=0>r?Math.min(-r,a-r-e.content.width-2*s):0,g+=l(e.content,"left",p),"top"==f?(m=n,g+=l(this,"top",m)):(m=o.height-this.height-n,g+=l(this,"top",m)),g+=l(this,"left",r),g+=l(this,"width",Math.max(a-r,1))):g+=1),g>0},ItemRange.prototype._create=function(){var t=this.dom;t||(this.dom=t={},t.box=document.createElement("div"),t.content=document.createElement("div"),t.content.className="content",t.box.appendChild(t.content),t.box["timeline-item"]=this)},ItemRange.prototype.reposition=function(){var t=this.dom,e=this.props;t&&(t.box.style.top=this.top+"px",t.box.style.left=this.left+"px",t.box.style.width=this.width+"px",t.content.style.left=e.content.left+"px")},ItemRange.prototype._repaintDragLeft=function(){if(this.selected&&this.options.editable&&!this.dom.dragLeft){var t=document.createElement("div");t.className="drag-left",t.dragLeftItem=this,Hammer(t,{preventDefault:!0}).on("drag",function(){}),this.dom.box.appendChild(t),this.dom.dragLeft=t}else!this.selected&&this.dom.dragLeft&&(this.dom.dragLeft.parentNode&&this.dom.dragLeft.parentNode.removeChild(this.dom.dragLeft),this.dom.dragLeft=null)},ItemRange.prototype._repaintDragRight=function(){if(this.selected&&this.options.editable&&!this.dom.dragRight){var t=document.createElement("div");t.className="drag-right",t.dragRightItem=this,Hammer(t,{preventDefault:!0}).on("drag",function(){}),this.dom.box.appendChild(t),this.dom.dragRight=t}else!this.selected&&this.dom.dragRight&&(this.dom.dragRight.parentNode&&this.dom.dragRight.parentNode.removeChild(this.dom.dragRight),this.dom.dragRight=null)},ItemRangeOverflow.prototype=new ItemRange(null,null),ItemRangeOverflow.prototype.repaint=function(){var t=!1,e=this.dom;if(e||(this._create(),e=this.dom,t=!0),e){if(!this.parent)throw new Error("Cannot repaint item: no parent attached");var i=this.parent.getForeground();if(!i)throw new Error("Cannot repaint time axis: parent has no foreground container element");if(e.box.parentNode||(i.appendChild(e.box),t=!0),this.data.content!=this.content){if(this.content=this.data.content,this.content instanceof Element)e.content.innerHTML="",e.content.appendChild(this.content);else{if(void 0==this.data.content)throw new Error('Property "content" missing in item '+this.id);e.content.innerHTML=this.content}t=!0}this._repaintDeleteButton(e.box),this._repaintDragLeft(),this._repaintDragRight();var n=(this.data.className?" "+this.data.className:"")+(this.selected?" selected":"");this.className!=n&&(this.className=n,e.box.className="item rangeoverflow"+n,t=!0)}return t},ItemRangeOverflow.prototype.reposition=function(){var t=this.dom,e=this.props;t&&(t.box.style.top=this.top+"px",t.box.style.left=this.left+"px",t.box.style.width=this._width+"px",t.content.style.left=e.content.left+"px")},Group.prototype=new Component,Group.prototype.setOptions=Component.prototype.setOptions,Group.prototype.getContainer=function(){return this.parent.getContainer()},Group.prototype.setItems=function(t){if(this.itemset&&(this.itemset.hide(),this.itemset.setItems(),this.parent.controller.remove(this.itemset),this.itemset=null),t){var e=this.groupId,i=Object.create(this.options);this.itemset=new ItemSet(this,null,i),this.itemset.setRange(this.parent.range),this.view=new DataView(t,{filter:function(t){return t.group==e}}),this.itemset.setItems(this.view),this.parent.controller.add(this.itemset)}},Group.prototype.setSelection=function(t){this.itemset&&this.itemset.setSelection(t)},Group.prototype.getSelection=function(){return this.itemset?this.itemset.getSelection():[]},Group.prototype.repaint=function(){return!1},Group.prototype.reflow=function(){var t=0,e=util.updateProperty;if(t+=e(this,"top",this.itemset?this.itemset.top:0),t+=e(this,"height",this.itemset?this.itemset.height:0),this.label){var i=this.label.firstChild;t+=e(this.props.label,"width",i.clientWidth),t+=e(this.props.label,"height",i.clientHeight)}else t+=e(this.props.label,"width",0),t+=e(this.props.label,"height",0);return t>0},GroupSet.prototype=new Panel,GroupSet.prototype.setOptions=Component.prototype.setOptions,GroupSet.prototype.setRange=function(){},GroupSet.prototype.setItems=function(t){this.itemsData=t;for(var e in this.groups)if(this.groups.hasOwnProperty(e)){var i=this.groups[e];i.setItems(t)}},GroupSet.prototype.getItems=function(){return this.itemsData},GroupSet.prototype.setRange=function(t){this.range=t},GroupSet.prototype.setGroups=function(t){var e,i=this;if(this.groupsData&&(util.forEach(this.listeners,function(t,e){i.groupsData.unsubscribe(e,t)}),e=this.groupsData.getIds(),this._onRemove(e)),t?t instanceof DataSet?this.groupsData=t:(this.groupsData=new DataSet({convert:{start:"Date",end:"Date"}}),this.groupsData.add(t)):this.groupsData=null,this.groupsData){var n=this.id;util.forEach(this.listeners,function(t,e){i.groupsData.on(e,t,n)}),e=this.groupsData.getIds(),this._onAdd(e)}},GroupSet.prototype.getGroups=function(){return this.groupsData},GroupSet.prototype.setSelection=function(t){var e=[],i=this.groups;for(var n in i)if(i.hasOwnProperty(n)){var s=i[n];s.setSelection(t)}return e},GroupSet.prototype.getSelection=function(){var t=[],e=this.groups;for(var i in e)if(e.hasOwnProperty(i)){var n=e[i];t=t.concat(n.getSelection())}return t},GroupSet.prototype.repaint=function(){var t,e,i,n,s=0,o=util.updateProperty,r=util.option.asSize,a=util.option.asElement,h=this.options,d=this.dom.frame,l=this.dom.labels,c=this.dom.labelSet;if(!this.parent)throw new Error("Cannot repaint groupset: no parent attached");var u=this.parent.getContainer();if(!u)throw new Error("Cannot repaint groupset: parent has no container element");if(!d){d=document.createElement("div"),d.className="groupset",d["timeline-groupset"]=this,this.dom.frame=d;var p=h.className;p&&util.addClassName(d,util.option.asString(p)),s+=1}d.parentNode||(u.appendChild(d),s+=1);var f=a(h.labelContainer);if(!f)throw new Error('Cannot repaint groupset: option "labelContainer" not defined');l||(l=document.createElement("div"),l.className="labels",this.dom.labels=l),c||(c=document.createElement("div"),c.className="label-set",l.appendChild(c),this.dom.labelSet=c),l.parentNode&&l.parentNode==f||(l.parentNode&&l.parentNode.removeChild(l.parentNode),f.appendChild(l)),s+=o(d.style,"height",r(h.height,this.height+"px")),s+=o(d.style,"top",r(h.top,"0px")),s+=o(d.style,"left",r(h.left,"0px")),s+=o(d.style,"width",r(h.width,"100%")),s+=o(c.style,"top",r(h.top,"0px")),s+=o(c.style,"height",r(h.height,this.height+"px"));var m=this,g=this.queue,v=this.groups,y=this.groupsData,_=Object.keys(g);if(_.length){_.forEach(function(t){var e=g[t],i=v[t];switch(e){case"add":case"update":if(!i){var n=Object.create(m.options);util.extend(n,{height:null,maxHeight:null}),i=new Group(m,t,n),i.setItems(m.itemsData),v[t]=i,m.controller.add(i)}i.data=y.get(t),delete g[t];break;case"remove":i&&(i.setItems(),delete v[t],m.controller.remove(i)),delete g[t];break;default:console.log('Error: unknown action "'+e+'"')}});var w=this.groupsData.getIds({order:this.options.groupOrder});for(t=0;t0},GroupSet.prototype._createLabel=function(t){var e=this.groups[t],i=document.createElement("div");i.className="vlabel";var n=document.createElement("div");n.className="inner",i.appendChild(n);var s=e.data&&e.data.content;s instanceof Element?n.appendChild(s):void 0!=s&&(n.innerHTML=s);var o=e.data&&e.data.className;return o&&util.addClassName(i,o),e.label=i,i},GroupSet.prototype.getContainer=function(){return this.dom.frame},GroupSet.prototype.getLabelsWidth=function(){return this.props.labels.width},GroupSet.prototype.reflow=function(){var t,e,i=0,n=this.options,s=util.updateProperty,o=util.option.asNumber,r=util.option.asSize,a=this.dom.frame;if(a){var h,d=o(n.maxHeight),l=null!=r(n.height);if(l)h=a.offsetHeight;else{h=0;for(t in this.groups)this.groups.hasOwnProperty(t)&&(e=this.groups[t],h+=e.height)}null!=d&&(h=Math.min(h,d)),i+=s(this,"height",h),i+=s(this,"top",a.offsetTop),i+=s(this,"left",a.offsetLeft),i+=s(this,"width",a.offsetWidth)}var c=0;for(t in this.groups)if(this.groups.hasOwnProperty(t)){e=this.groups[t];var u=e.props&&e.props.label&&e.props.label.width||0;c=Math.max(c,u)}return i+=s(this.props.labels,"width",c),i>0},GroupSet.prototype.hide=function(){return this.dom.frame&&this.dom.frame.parentNode?(this.dom.frame.parentNode.removeChild(this.dom.frame),!0):!1},GroupSet.prototype.show=function(){return this.dom.frame&&this.dom.frame.parentNode?!1:this.repaint()},GroupSet.prototype._onUpdate=function(t){this._toQueue(t,"update")},GroupSet.prototype._onAdd=function(t){this._toQueue(t,"add")},GroupSet.prototype._onRemove=function(t){this._toQueue(t,"remove")},GroupSet.prototype._toQueue=function(t,e){var i=this.queue;t.forEach(function(t){i[t]=e}),this.controller&&this.requestRepaint()},GroupSet.groupFromTarget=function(t){for(var e,i=t.target;i;){if(i.hasOwnProperty("timeline-groupset")){e=i["timeline-groupset"];break}i=i.parentNode}if(e)for(var n in e.groups)if(e.groups.hasOwnProperty(n)){var s=e.groups[n];if(s.itemset&&ItemSet.itemSetFromTarget(t)==s.itemset)return s}return null},Timeline.prototype.on=function(t,e){this.controller.on(t,e)},Timeline.prototype.off=function(t,e){this.controller.off(t,e)},Timeline.prototype.setOptions=function(t){util.extend(this.options,t),this.range.setRange(t.start,t.end),("editable"in t||"selectable"in t)&&this.setSelection(this.options.selectable?this.getSelection():[]);var e=function(t){if(!(this.options[t]instanceof Function)||2!=this.options[t].length)throw new Error("option "+t+" must be a function "+t+"(item, callback)")}.bind(this);["onAdd","onUpdate","onRemove","onMove"].forEach(e),this.controller.reflow(),this.controller.repaint()},Timeline.prototype.setCustomTime=function(t){if(!this.customtime)throw new Error("Cannot get custom time: Custom time bar is not enabled");this.customtime.setCustomTime(t)},Timeline.prototype.getCustomTime=function(){if(!this.customtime)throw new Error("Cannot get custom time: Custom time bar is not enabled");return this.customtime.getCustomTime()},Timeline.prototype.setItems=function(t){var e,i=null==this.itemsData;if(t?t instanceof DataSet&&(e=t):e=null,t instanceof DataSet||(e=new DataSet({convert:{start:"Date",end:"Date"}}),e.add(t)),this.itemsData=e,this.content.setItems(e),i&&(void 0==this.options.start||void 0==this.options.end)){var n=this.getItemRange(),s=n.min,o=n.max;if(null!=s&&null!=o){var r=o.valueOf()-s.valueOf();0>=r&&(r=864e5),s=new Date(s.valueOf()-.05*r),o=new Date(o.valueOf()+.05*r)}void 0!=this.options.start&&(s=util.convert(this.options.start,"Date")),void 0!=this.options.end&&(o=util.convert(this.options.end,"Date")),(null!=s||null!=o)&&this.range.setRange(s,o)}},Timeline.prototype.setGroups=function(t){var e=this;this.groupsData=t;var i=this.groupsData?GroupSet:ItemSet;if(!(this.content instanceof i)){this.content&&(this.content.hide(),this.content.setItems&&this.content.setItems(),this.content.setGroups&&this.content.setGroups(),this.controller.remove(this.content));var n=Object.create(this.options);util.extend(n,{top:function(){return"top"==e.options.orientation?e.timeaxis.height:e.itemPanel.height-e.timeaxis.height-e.content.height},left:null,width:"100%",height:function(){return e.options.height?e.itemPanel.height-e.timeaxis.height:null},maxHeight:function(){if(e.options.maxHeight){if(!util.isNumber(e.options.maxHeight))throw new TypeError("Number expected for property maxHeight");return e.options.maxHeight-e.timeaxis.height}return null},labelContainer:function(){return e.labelPanel.getContainer()}}),this.content=new i(this.itemPanel,[this.timeaxis],n),this.content.setRange&&this.content.setRange(this.range),this.content.setItems&&this.content.setItems(this.itemsData),this.content.setGroups&&this.content.setGroups(this.groupsData),this.controller.add(this.content)}},Timeline.prototype.getItemRange=function(){var t=this.itemsData,e=null,i=null;if(t){var n=t.min("start");e=n?n.start.valueOf():null;var s=t.max("start");s&&(i=s.start.valueOf());var o=t.max("end");o&&(i=null==i?o.end.valueOf():Math.max(i,o.end.valueOf()))}return{min:null!=e?new Date(e):null,max:null!=i?new Date(i):null}},Timeline.prototype.setSelection=function(t){this.content&&this.content.setSelection(t)},Timeline.prototype.getSelection=function(){return this.content?this.content.getSelection():[]},Timeline.prototype.setWindow=function(t,e){this.range.setRange(t,e)},Timeline.prototype.getWindow=function(){var t=this.range.getRange();return{start:new Date(t.start),end:new Date(t.end)}},Timeline.prototype._onSelectItem=function(t){if(this.options.selectable){var e=t.gesture.srcEvent&&t.gesture.srcEvent.ctrlKey,i=t.gesture.srcEvent&&t.gesture.srcEvent.shiftKey;if(e||i)return void this._onMultiSelectItem(t);var n=ItemSet.itemFromTarget(t),s=n?[n.id]:[];this.setSelection(s),this.controller.emit("select",{items:this.getSelection()}),t.stopPropagation()}},Timeline.prototype._onAddItem=function(t){if(this.options.selectable&&this.options.editable){var e=this,i=ItemSet.itemFromTarget(t);if(i){var n=e.itemsData.get(i.id);this.options.onUpdate(n,function(t){t&&e.itemsData.update(t)})}else{var s=vis.util.getAbsoluteLeft(this.rootPanel.frame),o=t.gesture.center.pageX-s,r={start:this.timeaxis.snap(this._toTime(o)),content:"new item"},a=util.randomUUID();r[this.itemsData.fieldId]=a;var h=GroupSet.groupFromTarget(t);h&&(r.group=h.groupId),this.options.onAdd(r,function(t){t&&(e.itemsData.add(r),e.controller.once("repaint",function(){e.setSelection([a]),e.controller.emit("select",{items:e.getSelection()})}.bind(e)))})}}},Timeline.prototype._onMultiSelectItem=function(t){if(this.options.selectable){var e,i=ItemSet.itemFromTarget(t);if(i){e=this.getSelection();var n=e.indexOf(i.id);-1==n?e.push(i.id):e.splice(n,1),this.setSelection(e),this.controller.emit("select",{items:this.getSelection()}),t.stopPropagation()}}},Timeline.prototype._toTime=function(t){var e=this.range.conversion(this.content.width);return new Date(t/e.scale+e.offset)},Timeline.prototype._toScreen=function(t){var e=this.range.conversion(this.content.width);return(t.valueOf()-e.offset)*e.scale},function(t){function e(t){return D=t,u()}function i(){M=0,C=D.charAt(0)}function n(){M++,C=D.charAt(M)}function s(){return D.charAt(M+1)}function o(t){return O.test(t)}function r(t,e){if(t||(t={}),e)for(var i in e)e.hasOwnProperty(i)&&(t[i]=e[i]);return t}function a(t,e,i){for(var n=e.split("."),s=t;n.length;){var o=n.shift();n.length?(s[o]||(s[o]={}),s=s[o]):s[o]=i}}function h(t,e){for(var i,n,s=null,o=[t],a=t;a.parent;)o.push(a.parent),a=a.parent;if(a.nodes)for(i=0,n=a.nodes.length;n>i;i++)if(e.id===a.nodes[i].id){s=a.nodes[i];break}for(s||(s={id:e.id},t.node&&(s.attr=r(s.attr,t.node))),i=o.length-1;i>=0;i--){var h=o[i];h.nodes||(h.nodes=[]),-1==h.nodes.indexOf(s)&&h.nodes.push(s) +}e.attr&&(s.attr=r(s.attr,e.attr))}function d(t,e){if(t.edges||(t.edges=[]),t.edges.push(e),t.edge){var i=r({},t.edge);e.attr=r(i,e.attr)}}function l(t,e,i,n,s){var o={from:e,to:i,type:n};return t.edge&&(o.attr=r({},t.edge)),o.attr=r(o.attr||{},s),o}function c(){for(N=T.NULL,I="";" "==C||" "==C||"\n"==C||"\r"==C;)n();do{var t=!1;if("#"==C){for(var e=M-1;" "==D.charAt(e)||" "==D.charAt(e);)e--;if("\n"==D.charAt(e)||""==D.charAt(e)){for(;""!=C&&"\n"!=C;)n();t=!0}}if("/"==C&&"/"==s()){for(;""!=C&&"\n"!=C;)n();t=!0}if("/"==C&&"*"==s()){for(;""!=C;){if("*"==C&&"/"==s()){n(),n();break}n()}t=!0}for(;" "==C||" "==C||"\n"==C||"\r"==C;)n()}while(t);if(""==C)return void(N=T.DELIMITER);var i=C+s();if(x[i])return N=T.DELIMITER,I=i,n(),void n();if(x[C])return N=T.DELIMITER,I=C,void n();if(o(C)||"-"==C){for(I+=C,n();o(C);)I+=C,n();return"false"==I?I=!1:"true"==I?I=!0:isNaN(Number(I))||(I=Number(I)),void(N=T.IDENTIFIER)}if('"'==C){for(n();""!=C&&('"'!=C||'"'==C&&'"'==s());)I+=C,'"'==C&&n(),n();if('"'!=C)throw w('End of string " expected');return n(),void(N=T.IDENTIFIER)}for(N=T.UNKNOWN;""!=C;)I+=C,n();throw new SyntaxError('Syntax error in part "'+b(I,30)+'"')}function u(){var t={};if(i(),c(),"strict"==I&&(t.strict=!0,c()),("graph"==I||"digraph"==I)&&(t.type=I,c()),N==T.IDENTIFIER&&(t.id=I,c()),"{"!=I)throw w("Angle bracket { expected");if(c(),p(t),"}"!=I)throw w("Angle bracket } expected");if(c(),""!==I)throw w("End of file expected");return c(),delete t.node,delete t.edge,delete t.graph,t}function p(t){for(;""!==I&&"}"!=I;)f(t),";"==I&&c()}function f(t){var e=m(t);if(e)return void y(t,e);var i=g(t);if(!i){if(N!=T.IDENTIFIER)throw w("Identifier expected");var n=I;if(c(),"="==I){if(c(),N!=T.IDENTIFIER)throw w("Identifier expected");t[n]=I,c()}else v(t,n)}}function m(t){var e=null;if("subgraph"==I&&(e={},e.type="subgraph",c(),N==T.IDENTIFIER&&(e.id=I,c())),"{"==I){if(c(),e||(e={}),e.parent=t,e.node=t.node,e.edge=t.edge,e.graph=t.graph,p(e),"}"!=I)throw w("Angle bracket } expected");c(),delete e.node,delete e.edge,delete e.graph,delete e.parent,t.subgraphs||(t.subgraphs=[]),t.subgraphs.push(e)}return e}function g(t){return"node"==I?(c(),t.node=_(),"node"):"edge"==I?(c(),t.edge=_(),"edge"):"graph"==I?(c(),t.graph=_(),"graph"):null}function v(t,e){var i={id:e},n=_();n&&(i.attr=n),h(t,i),y(t,e)}function y(t,e){for(;"->"==I||"--"==I;){var i,n=I;c();var s=m(t);if(s)i=s;else{if(N!=T.IDENTIFIER)throw w("Identifier or subgraph expected");i=I,h(t,{id:i}),c()}var o=_(),r=l(t,e,i,n,o);d(t,r),e=i}}function _(){for(var t=null;"["==I;){for(c(),t={};""!==I&&"]"!=I;){if(N!=T.IDENTIFIER)throw w("Attribute name expected");var e=I;if(c(),"="!=I)throw w("Equal sign = expected");if(c(),N!=T.IDENTIFIER)throw w("Attribute value expected");var i=I;a(t,e,i),c(),","==I&&c()}if("]"!=I)throw w("Bracket ] expected");c()}return t}function w(t){return new SyntaxError(t+', got "'+b(I,30)+'" (char '+M+")")}function b(t,e){return t.length<=e?t:t.substr(0,27)+"..."}function S(t,e,i){t instanceof Array?t.forEach(function(t){e instanceof Array?e.forEach(function(e){i(t,e)}):i(t,e)}):e instanceof Array?e.forEach(function(e){i(t,e)}):i(t,e)}function E(t){function i(t){var e={from:t.from,to:t.to};return r(e,t.attr),e.style="->"==t.type?"arrow":"line",e}var n=e(t),s={nodes:[],edges:[],options:{}};return n.nodes&&n.nodes.forEach(function(t){var e={id:t.id,label:String(t.label||t.id)};r(e,t.attr),e.image&&(e.shape="image"),s.nodes.push(e)}),n.edges&&n.edges.forEach(function(t){var e,n;e=t.from instanceof Object?t.from.nodes:{id:t.from},n=t.to instanceof Object?t.to.nodes:{id:t.to},t.from instanceof Object&&t.from.edges&&t.from.edges.forEach(function(t){var e=i(t);s.edges.push(e)}),S(e,n,function(e,n){var o=l(s,e.id,n.id,t.type,t.attr),r=i(o);s.edges.push(r)}),t.to instanceof Object&&t.to.edges&&t.to.edges.forEach(function(t){var e=i(t);s.edges.push(e)})}),n.attr&&(s.options=n.attr),s}var T={NULL:0,DELIMITER:1,IDENTIFIER:2,UNKNOWN:3},x={"{":!0,"}":!0,"[":!0,"]":!0,";":!0,"=":!0,",":!0,"->":!0,"--":!0},D="",M=0,C="",I="",N=T.NULL,O=/[a-zA-Z_0-9.:#]/;t.parseDOT=e,t.DOTToGraph=E}("undefined"!=typeof util?util:exports),"undefined"!=typeof CanvasRenderingContext2D&&(CanvasRenderingContext2D.prototype.circle=function(t,e,i){this.beginPath(),this.arc(t,e,i,0,2*Math.PI,!1)},CanvasRenderingContext2D.prototype.square=function(t,e,i){this.beginPath(),this.rect(t-i,e-i,2*i,2*i)},CanvasRenderingContext2D.prototype.triangle=function(t,e,i){this.beginPath();var n=2*i,s=n/2,o=Math.sqrt(3)/6*n,r=Math.sqrt(n*n-s*s);this.moveTo(t,e-(r-o)),this.lineTo(t+s,e+o),this.lineTo(t-s,e+o),this.lineTo(t,e-(r-o)),this.closePath()},CanvasRenderingContext2D.prototype.triangleDown=function(t,e,i){this.beginPath();var n=2*i,s=n/2,o=Math.sqrt(3)/6*n,r=Math.sqrt(n*n-s*s);this.moveTo(t,e+(r-o)),this.lineTo(t+s,e-o),this.lineTo(t-s,e-o),this.lineTo(t,e+(r-o)),this.closePath()},CanvasRenderingContext2D.prototype.star=function(t,e,i){this.beginPath();for(var n=0;10>n;n++){var s=n%2===0?1.3*i:.5*i;this.lineTo(t+s*Math.sin(2*n*Math.PI/10),e-s*Math.cos(2*n*Math.PI/10))}this.closePath()},CanvasRenderingContext2D.prototype.roundRect=function(t,e,i,n,s){var o=Math.PI/180;0>i-2*s&&(s=i/2),0>n-2*s&&(s=n/2),this.beginPath(),this.moveTo(t+s,e),this.lineTo(t+i-s,e),this.arc(t+i-s,e+s,s,270*o,360*o,!1),this.lineTo(t+i,e+n-s),this.arc(t+i-s,e+n-s,s,0,90*o,!1),this.lineTo(t+s,e+n),this.arc(t+s,e+n-s,s,90*o,180*o,!1),this.lineTo(t,e+s),this.arc(t+s,e+s,s,180*o,270*o,!1)},CanvasRenderingContext2D.prototype.ellipse=function(t,e,i,n){var s=.5522848,o=i/2*s,r=n/2*s,a=t+i,h=e+n,d=t+i/2,l=e+n/2;this.beginPath(),this.moveTo(t,l),this.bezierCurveTo(t,l-r,d-o,e,d,e),this.bezierCurveTo(d+o,e,a,l-r,a,l),this.bezierCurveTo(a,l+r,d+o,h,d,h),this.bezierCurveTo(d-o,h,t,l+r,t,l)},CanvasRenderingContext2D.prototype.database=function(t,e,i,n){var s=1/3,o=i,r=n*s,a=.5522848,h=o/2*a,d=r/2*a,l=t+o,c=e+r,u=t+o/2,p=e+r/2,f=e+(n-r/2),m=e+n;this.beginPath(),this.moveTo(l,p),this.bezierCurveTo(l,p+d,u+h,c,u,c),this.bezierCurveTo(u-h,c,t,p+d,t,p),this.bezierCurveTo(t,p-d,u-h,e,u,e),this.bezierCurveTo(u+h,e,l,p-d,l,p),this.lineTo(l,f),this.bezierCurveTo(l,f+d,u+h,m,u,m),this.bezierCurveTo(u-h,m,t,f+d,t,f),this.lineTo(t,p)},CanvasRenderingContext2D.prototype.arrow=function(t,e,i,n){var s=t-n*Math.cos(i),o=e-n*Math.sin(i),r=t-.9*n*Math.cos(i),a=e-.9*n*Math.sin(i),h=s+n/3*Math.cos(i+.5*Math.PI),d=o+n/3*Math.sin(i+.5*Math.PI),l=s+n/3*Math.cos(i-.5*Math.PI),c=o+n/3*Math.sin(i-.5*Math.PI);this.beginPath(),this.moveTo(t,e),this.lineTo(h,d),this.lineTo(r,a),this.lineTo(l,c),this.closePath()},CanvasRenderingContext2D.prototype.dashedLine=function(t,e,i,n,s){s||(s=[10,5]),0==u&&(u=.001);var o=s.length;this.moveTo(t,e);for(var r=i-t,a=n-e,h=a/r,d=Math.sqrt(r*r+a*a),l=0,c=!0;d>=.1;){var u=s[l++%o];u>d&&(u=d);var p=Math.sqrt(u*u/(1+h*h));0>r&&(p=-p),t+=p,e+=h*p,this[c?"lineTo":"moveTo"](t,e),d-=u,c=!c}}),Node.prototype.resetCluster=function(){this.formationScale=void 0,this.clusterSize=1,this.containedNodes={},this.containedEdges={},this.clusterSessions=[]},Node.prototype.attachEdge=function(t){-1==this.edges.indexOf(t)&&this.edges.push(t),-1==this.dynamicEdges.indexOf(t)&&this.dynamicEdges.push(t),this.dynamicEdgesLength=this.dynamicEdges.length},Node.prototype.detachEdge=function(t){var e=this.edges.indexOf(t);-1!=e&&(this.edges.splice(e,1),this.dynamicEdges.splice(e,1)),this.dynamicEdgesLength=this.dynamicEdges.length},Node.prototype.setProperties=function(t,e){if(t){if(this.originalLabel=void 0,void 0!==t.id&&(this.id=t.id),void 0!==t.label&&(this.label=t.label,this.originalLabel=t.label),void 0!==t.title&&(this.title=t.title),void 0!==t.group&&(this.group=t.group),void 0!==t.x&&(this.x=t.x),void 0!==t.y&&(this.y=t.y),void 0!==t.value&&(this.value=t.value),void 0!==t.level&&(this.level=t.level),void 0!==t.internalMultiplier&&(this.internalMultiplier=t.internalMultiplier),void 0!==t.damping&&(this.dampingBase=t.damping),void 0!==t.mass&&(this.mass=t.mass),void 0!==t.horizontalAlignLeft&&(this.horizontalAlignLeft=t.horizontalAlignLeft),void 0!==t.verticalAlignTop&&(this.verticalAlignTop=t.verticalAlignTop),void 0!==t.triggerFunction&&(this.triggerFunction=t.triggerFunction),void 0===this.id)throw"Node must have an id";if(this.group){var i=this.grouplist.get(this.group);for(var n in i)i.hasOwnProperty(n)&&(this[n]=i[n])}if(void 0!==t.shape&&(this.shape=t.shape),void 0!==t.image&&(this.image=t.image),void 0!==t.radius&&(this.radius=t.radius),void 0!==t.color&&(this.color=Node.parseColor(t.color)),void 0!==t.fontColor&&(this.fontColor=t.fontColor),void 0!==t.fontSize&&(this.fontSize=t.fontSize),void 0!==t.fontFace&&(this.fontFace=t.fontFace),void 0!==this.image){if(!this.imagelist)throw"No imagelist provided";this.imageObj=this.imagelist.load(this.image)}switch(this.xFixed=this.xFixed||void 0!==t.x&&!t.allowedToMove,this.yFixed=this.yFixed||void 0!==t.y&&!t.allowedToMove,this.radiusFixed=this.radiusFixed||void 0!==t.radius,"image"==this.shape&&(this.radiusMin=e.nodes.widthMin,this.radiusMax=e.nodes.widthMax),this.shape){case"database":this.draw=this._drawDatabase,this.resize=this._resizeDatabase;break;case"box":this.draw=this._drawBox,this.resize=this._resizeBox;break;case"circle":this.draw=this._drawCircle,this.resize=this._resizeCircle;break;case"ellipse":this.draw=this._drawEllipse,this.resize=this._resizeEllipse;break;case"image":this.draw=this._drawImage,this.resize=this._resizeImage;break;case"text":this.draw=this._drawText,this.resize=this._resizeText;break;case"dot":this.draw=this._drawDot,this.resize=this._resizeShape;break;case"square":this.draw=this._drawSquare,this.resize=this._resizeShape;break;case"triangle":this.draw=this._drawTriangle,this.resize=this._resizeShape;break;case"triangleDown":this.draw=this._drawTriangleDown,this.resize=this._resizeShape;break;case"star":this.draw=this._drawStar,this.resize=this._resizeShape;break;default:this.draw=this._drawEllipse,this.resize=this._resizeEllipse}this._reset()}},Node.parseColor=function(t){var e;if(util.isString(t))if(util.isValidHex(t)){var i=util.hexToHSV(t),n={h:i.h,s:.45*i.s,v:Math.min(1,1.05*i.v)},s={h:i.h,s:Math.min(1,1.25*i.v),v:.6*i.v},o=util.HSVToHex(s.h,s.h,s.v),r=util.HSVToHex(n.h,n.s,n.v);e={background:t,border:o,highlight:{background:r,border:o}}}else e={background:t,border:t,highlight:{background:t,border:t}};else e={},e.background=t.background||"white",e.border=t.border||e.background,util.isString(t.highlight)?e.highlight={border:t.highlight,background:t.highlight}:(e.highlight={},e.highlight.background=t.highlight&&t.highlight.background||e.background,e.highlight.border=t.highlight&&t.highlight.border||e.border);return e},Node.prototype.select=function(){this.selected=!0,this._reset()},Node.prototype.unselect=function(){this.selected=!1,this._reset()},Node.prototype.clearSizeCache=function(){this._reset()},Node.prototype._reset=function(){this.width=void 0,this.height=void 0},Node.prototype.getTitle=function(){return this.title},Node.prototype.distanceToBorder=function(t,e){var i=1;switch(this.width||this.resize(t),this.shape){case"circle":case"dot":return this.radius+i;case"ellipse":var n=this.width/2,s=this.height/2,o=Math.sin(e)*n,r=Math.cos(e)*s;return n*s/Math.sqrt(o*o+r*r);case"box":case"image":case"text":default:return this.width?Math.min(Math.abs(this.width/2/Math.cos(e)),Math.abs(this.height/2/Math.sin(e)))+i:0}},Node.prototype._setForce=function(t,e){this.fx=t,this.fy=e},Node.prototype._addForce=function(t,e){this.fx+=t,this.fy+=e},Node.prototype.discreteStep=function(t){if(!this.xFixed){var e=this.damping*this.vx,i=(this.fx-e)/this.mass;this.vx+=i*t,this.x+=this.vx*t}if(!this.yFixed){var n=this.damping*this.vy,s=(this.fy-n)/this.mass;this.vy+=s*t,this.y+=this.vy*t}},Node.prototype.discreteStepLimited=function(t,e){if(!this.xFixed){var i=this.damping*this.vx,n=(this.fx-i)/this.mass;this.vx+=n*t,this.vx=Math.abs(this.vx)>e?this.vx>0?e:-e:this.vx,this.x+=this.vx*t}if(!this.yFixed){var s=this.damping*this.vy,o=(this.fy-s)/this.mass;this.vy+=o*t,this.vy=Math.abs(this.vy)>e?this.vy>0?e:-e:this.vy,this.y+=this.vy*t}},Node.prototype.isFixed=function(){return this.xFixed&&this.yFixed},Node.prototype.isMoving=function(t){return Math.abs(this.vx)>t||Math.abs(this.vy)>t},Node.prototype.isSelected=function(){return this.selected},Node.prototype.getValue=function(){return this.value},Node.prototype.getDistance=function(t,e){var i=this.x-t,n=this.y-e;return Math.sqrt(i*i+n*n)},Node.prototype.setValueRange=function(t,e){if(!this.radiusFixed&&void 0!==this.value)if(e==t)this.radius=(this.radiusMin+this.radiusMax)/2;else{var i=(this.radiusMax-this.radiusMin)/(e-t);this.radius=(this.value-t)*i+this.radiusMin}this.baseRadiusValue=this.radius},Node.prototype.draw=function(){throw"Draw method not initialized for node"},Node.prototype.resize=function(){throw"Resize method not initialized for node"},Node.prototype.isOverlappingWith=function(t){return this.leftt.left&&this.topt.top},Node.prototype._resizeImage=function(){if(!this.width||!this.height){var t,e;if(this.value){this.radius=this.baseRadiusValue;var i=this.imageObj.height/this.imageObj.width;void 0!==i?(t=this.radius||this.imageObj.width,e=this.radius*i||this.imageObj.height):(t=0,e=0)}else t=this.imageObj.width,e=this.imageObj.height;this.width=t,this.height=e,this.growthIndicator=0,this.width>0&&this.height>0&&(this.width+=Math.min(this.clusterSize-1,this.maxNodeSizeIncrements)*this.clusterSizeWidthFactor,this.height+=Math.min(this.clusterSize-1,this.maxNodeSizeIncrements)*this.clusterSizeHeightFactor,this.radius+=Math.min(this.clusterSize-1,this.maxNodeSizeIncrements)*this.clusterSizeRadiusFactor,this.growthIndicator=this.width-t)}},Node.prototype._drawImage=function(t){this._resizeImage(t),this.left=this.x-this.width/2,this.top=this.y-this.height/2;var e;if(0!=this.imageObj.width){if(this.clusterSize>1){var i=this.clusterSize>1?10:0;i*=this.graphScaleInv,i=Math.min(.2*this.width,i),t.globalAlpha=.5,t.drawImage(this.imageObj,this.left-i,this.top-i,this.width+2*i,this.height+2*i)}t.globalAlpha=1,t.drawImage(this.imageObj,this.left,this.top,this.width,this.height),e=this.y+this.height/2}else e=this.y;this._label(t,this.label,this.x,e,void 0,"top")},Node.prototype._resizeBox=function(t){if(!this.width){var e=5,i=this.getTextSize(t);this.width=i.width+2*e,this.height=i.height+2*e,this.width+=.5*Math.min(this.clusterSize-1,this.maxNodeSizeIncrements)*this.clusterSizeWidthFactor,this.height+=.5*Math.min(this.clusterSize-1,this.maxNodeSizeIncrements)*this.clusterSizeHeightFactor,this.growthIndicator=this.width-(i.width+2*e)}},Node.prototype._drawBox=function(t){this._resizeBox(t),this.left=this.x-this.width/2,this.top=this.y-this.height/2;var e=2.5,i=2;t.strokeStyle=this.selected?this.color.highlight.border:this.color.border,this.clusterSize>1&&(t.lineWidth=(this.selected?i:1)+(this.clusterSize>1?e:0),t.lineWidth*=this.graphScaleInv,t.lineWidth=Math.min(.1*this.width,t.lineWidth),t.roundRect(this.left-2*t.lineWidth,this.top-2*t.lineWidth,this.width+4*t.lineWidth,this.height+4*t.lineWidth,this.radius),t.stroke()),t.lineWidth=(this.selected?i:1)+(this.clusterSize>1?e:0),t.lineWidth*=this.graphScaleInv,t.lineWidth=Math.min(.1*this.width,t.lineWidth),t.fillStyle=this.selected?this.color.highlight.background:this.color.background,t.roundRect(this.left,this.top,this.width,this.height,this.radius),t.fill(),t.stroke(),this._label(t,this.label,this.x,this.y)},Node.prototype._resizeDatabase=function(t){if(!this.width){var e=5,i=this.getTextSize(t),n=i.width+2*e;this.width=n,this.height=n,this.width+=Math.min(this.clusterSize-1,this.maxNodeSizeIncrements)*this.clusterSizeWidthFactor,this.height+=Math.min(this.clusterSize-1,this.maxNodeSizeIncrements)*this.clusterSizeHeightFactor,this.radius+=Math.min(this.clusterSize-1,this.maxNodeSizeIncrements)*this.clusterSizeRadiusFactor,this.growthIndicator=this.width-n}},Node.prototype._drawDatabase=function(t){this._resizeDatabase(t),this.left=this.x-this.width/2,this.top=this.y-this.height/2;var e=2.5,i=2;t.strokeStyle=this.selected?this.color.highlight.border:this.color.border,this.clusterSize>1&&(t.lineWidth=(this.selected?i:1)+(this.clusterSize>1?e:0),t.lineWidth*=this.graphScaleInv,t.lineWidth=Math.min(.1*this.width,t.lineWidth),t.database(this.x-this.width/2-2*t.lineWidth,this.y-.5*this.height-2*t.lineWidth,this.width+4*t.lineWidth,this.height+4*t.lineWidth),t.stroke()),t.lineWidth=(this.selected?i:1)+(this.clusterSize>1?e:0),t.lineWidth*=this.graphScaleInv,t.lineWidth=Math.min(.1*this.width,t.lineWidth),t.fillStyle=this.selected?this.color.highlight.background:this.color.background,t.database(this.x-this.width/2,this.y-.5*this.height,this.width,this.height),t.fill(),t.stroke(),this._label(t,this.label,this.x,this.y)},Node.prototype._resizeCircle=function(t){if(!this.width){var e=5,i=this.getTextSize(t),n=Math.max(i.width,i.height)+2*e;this.radius=n/2,this.width=n,this.height=n,this.radius+=.5*Math.min(this.clusterSize-1,this.maxNodeSizeIncrements)*this.clusterSizeRadiusFactor,this.growthIndicator=this.radius-.5*n}},Node.prototype._drawCircle=function(t){this._resizeCircle(t),this.left=this.x-this.width/2,this.top=this.y-this.height/2;var e=2.5,i=2;t.strokeStyle=this.selected?this.color.highlight.border:this.color.border,this.clusterSize>1&&(t.lineWidth=(this.selected?i:1)+(this.clusterSize>1?e:0),t.lineWidth*=this.graphScaleInv,t.lineWidth=Math.min(.1*this.width,t.lineWidth),t.circle(this.x,this.y,this.radius+2*t.lineWidth),t.stroke()),t.lineWidth=(this.selected?i:1)+(this.clusterSize>1?e:0),t.lineWidth*=this.graphScaleInv,t.lineWidth=Math.min(.1*this.width,t.lineWidth),t.fillStyle=this.selected?this.color.highlight.background:this.color.background,t.circle(this.x,this.y,this.radius),t.fill(),t.stroke(),this._label(t,this.label,this.x,this.y)},Node.prototype._resizeEllipse=function(t){if(!this.width){var e=this.getTextSize(t);this.width=1.5*e.width,this.height=2*e.height,this.width1&&(t.lineWidth=(this.selected?i:1)+(this.clusterSize>1?e:0),t.lineWidth*=this.graphScaleInv,t.lineWidth=Math.min(.1*this.width,t.lineWidth),t.ellipse(this.left-2*t.lineWidth,this.top-2*t.lineWidth,this.width+4*t.lineWidth,this.height+4*t.lineWidth),t.stroke()),t.lineWidth=(this.selected?i:1)+(this.clusterSize>1?e:0),t.lineWidth*=this.graphScaleInv,t.lineWidth=Math.min(.1*this.width,t.lineWidth),t.fillStyle=this.selected?this.color.highlight.background:this.color.background,t.ellipse(this.left,this.top,this.width,this.height),t.fill(),t.stroke(),this._label(t,this.label,this.x,this.y)},Node.prototype._drawDot=function(t){this._drawShape(t,"circle")},Node.prototype._drawTriangle=function(t){this._drawShape(t,"triangle")},Node.prototype._drawTriangleDown=function(t){this._drawShape(t,"triangleDown")},Node.prototype._drawSquare=function(t){this._drawShape(t,"square")},Node.prototype._drawStar=function(t){this._drawShape(t,"star")},Node.prototype._resizeShape=function(){if(!this.width){this.radius=this.baseRadiusValue;var t=2*this.radius;this.width=t,this.height=t,this.width+=Math.min(this.clusterSize-1,this.maxNodeSizeIncrements)*this.clusterSizeWidthFactor,this.height+=Math.min(this.clusterSize-1,this.maxNodeSizeIncrements)*this.clusterSizeHeightFactor,this.radius+=.5*Math.min(this.clusterSize-1,this.maxNodeSizeIncrements)*this.clusterSizeRadiusFactor,this.growthIndicator=this.width-t}},Node.prototype._drawShape=function(t,e){this._resizeShape(t),this.left=this.x-this.width/2,this.top=this.y-this.height/2;var i=2.5,n=2,s=2;switch(e){case"dot":s=2;break;case"square":s=2;break;case"triangle":s=3;break;case"triangleDown":s=3;break;case"star":s=4}t.strokeStyle=this.selected?this.color.highlight.border:this.color.border,this.clusterSize>1&&(t.lineWidth=(this.selected?n:1)+(this.clusterSize>1?i:0),t.lineWidth*=this.graphScaleInv,t.lineWidth=Math.min(.1*this.width,t.lineWidth),t[e](this.x,this.y,this.radius+s*t.lineWidth),t.stroke()),t.lineWidth=(this.selected?n:1)+(this.clusterSize>1?i:0),t.lineWidth*=this.graphScaleInv,t.lineWidth=Math.min(.1*this.width,t.lineWidth),t.fillStyle=this.selected?this.color.highlight.background:this.color.background,t[e](this.x,this.y,this.radius),t.fill(),t.stroke(),this.label&&this._label(t,this.label,this.x,this.y+this.height/2,void 0,"top")},Node.prototype._resizeText=function(t){if(!this.width){var e=5,i=this.getTextSize(t);this.width=i.width+2*e,this.height=i.height+2*e,this.width+=Math.min(this.clusterSize-1,this.maxNodeSizeIncrements)*this.clusterSizeWidthFactor,this.height+=Math.min(this.clusterSize-1,this.maxNodeSizeIncrements)*this.clusterSizeHeightFactor,this.radius+=Math.min(this.clusterSize-1,this.maxNodeSizeIncrements)*this.clusterSizeRadiusFactor,this.growthIndicator=this.width-(i.width+2*e)}},Node.prototype._drawText=function(t){this._resizeText(t),this.left=this.x-this.width/2,this.top=this.y-this.height/2,this._label(t,this.label,this.x,this.y)},Node.prototype._label=function(t,e,i,n,s,o){if(e&&this.fontSize*this.graphScale>this.fontDrawThreshold){t.font=(this.selected?"bold ":"")+this.fontSize+"px "+this.fontFace,t.fillStyle=this.fontColor||"black",t.textAlign=s||"center",t.textBaseline=o||"middle";for(var r=e.split("\n"),a=r.length,h=this.fontSize+4,d=n+(1-a)/2*h,l=0;a>l;l++)t.fillText(r[l],i,d),d+=h}},Node.prototype.getTextSize=function(t){if(void 0!==this.label){t.font=(this.selected?"bold ":"")+this.fontSize+"px "+this.fontFace;for(var e=this.label.split("\n"),i=(this.fontSize+4)*e.length,n=0,s=0,o=e.length;o>s;s++)n=Math.max(n,t.measureText(e[s]).width);return{width:n,height:i}}return{width:0,height:0}},Node.prototype.inArea=function(){return void 0!==this.width?this.x+this.width*this.graphScaleInv>=this.canvasTopLeft.x&&this.x-this.width*this.graphScaleInv=this.canvasTopLeft.y&&this.y-this.height*this.graphScaleInv=this.canvasTopLeft.x&&this.x=this.canvasTopLeft.y&&this.yh},Edge.prototype._drawLine=function(t){t.strokeStyle=this.color,t.lineWidth=this._getLineWidth();var e;if(this.from!=this.to+9)this._line(t),this.label&&(e=this._pointOnLine(.5),this._label(t,this.label,e.x,e.y));else{var i,n,s=this.length/4,o=this.from;o.width||o.resize(t),o.width>o.height?(i=o.x+o.width/2,n=o.y-s):(i=o.x+s,n=o.y-o.height/2),this._circle(t,i,n,s),e=this._pointOnCircle(i,n,s,.5),this._label(t,this.label,e.x,e.y)}},Edge.prototype._getLineWidth=function(){return 1==this.selected?Math.min(2*this.width,this.widthMax)*this.graphScaleInv:this.width*this.graphScaleInv},Edge.prototype._line=function(t){t.beginPath(),t.moveTo(this.from.x,this.from.y),1==this.smooth?t.quadraticCurveTo(this.via.x,this.via.y,this.to.x,this.to.y):t.lineTo(this.to.x,this.to.y),t.stroke()},Edge.prototype._circle=function(t,e,i,n){t.beginPath(),t.arc(e,i,n,0,2*Math.PI,!1),t.stroke()},Edge.prototype._label=function(t,e,i,n){if(e){t.font=(this.from.selected||this.to.selected?"bold ":"")+this.fontSize+"px "+this.fontFace,t.fillStyle="white";var s=t.measureText(e).width,o=this.fontSize,r=i-s/2,a=n-o/2;t.fillRect(r,a,s,o),t.fillStyle=this.fontColor||"black",t.textAlign="left",t.textBaseline="top",t.fillText(e,r,a)}},Edge.prototype._drawDashLine=function(t){if(t.strokeStyle=this.color,t.lineWidth=this._getLineWidth(),void 0!==t.mozDash||void 0!==t.setLineDash){t.beginPath(),t.moveTo(this.from.x,this.from.y);var e=[0];e=void 0!==this.dash.length&&void 0!==this.dash.gap?[this.dash.length,this.dash.gap]:[5,5],"undefined"!=typeof t.setLineDash?(t.setLineDash(e),t.lineDashOffset=0):(t.mozDash=e,t.mozDashOffset=0),1==this.smooth?t.quadraticCurveTo(this.via.x,this.via.y,this.to.x,this.to.y):t.lineTo(this.to.x,this.to.y),t.stroke(),"undefined"!=typeof t.setLineDash?(t.setLineDash([0]),t.lineDashOffset=0):(t.mozDash=[0],t.mozDashOffset=0)}else t.beginPath(),t.lineCap="round",void 0!==this.dash.altLength?t.dashedLine(this.from.x,this.from.y,this.to.x,this.to.y,[this.dash.length,this.dash.gap,this.dash.altLength,this.dash.gap]):void 0!==this.dash.length&&void 0!==this.dash.gap?t.dashedLine(this.from.x,this.from.y,this.to.x,this.to.y,[this.dash.length,this.dash.gap]):(t.moveTo(this.from.x,this.from.y),t.lineTo(this.to.x,this.to.y)),t.stroke();if(this.label){var i=this._pointOnLine(.5);this._label(t,this.label,i.x,i.y)}},Edge.prototype._pointOnLine=function(t){return{x:(1-t)*this.from.x+t*this.to.x,y:(1-t)*this.from.y+t*this.to.y}},Edge.prototype._pointOnCircle=function(t,e,i,n){var s=2*(n-3/8)*Math.PI;return{x:t+i*Math.cos(s),y:e-i*Math.sin(s)}},Edge.prototype._drawArrowCenter=function(t){var e;if(t.strokeStyle=this.color,t.fillStyle=this.color,t.lineWidth=this._getLineWidth(),this.from!=this.to){this._line(t);var i=Math.atan2(this.to.y-this.from.y,this.to.x-this.from.x),n=10+5*this.width;if(1==this.smooth){var s=.5*(.5*(this.from.x+this.via.x)+.5*(this.to.x+this.via.x)),o=.5*(.5*(this.from.y+this.via.y)+.5*(this.to.y+this.via.y));e={x:s,y:o}}else e=this._pointOnLine(.5);t.arrow(e.x,e.y,i,n),t.fill(),t.stroke(),this.label&&(e=this._pointOnLine(.5),this._label(t,this.label,e.x,e.y))}else{var r,a,h=.25*Math.max(100,this.length),d=this.from;d.width||d.resize(t),d.width>d.height?(r=d.x+.5*d.width,a=d.y-h):(r=d.x+h,a=d.y-.5*d.height),this._circle(t,r,a,h);var i=.2*Math.PI,n=10+5*this.width;e=this._pointOnCircle(r,a,h,.5),t.arrow(e.x,e.y,i,n),t.fill(),t.stroke(),this.label&&(e=this._pointOnCircle(r,a,h,.5),this._label(t,this.label,e.x,e.y))}},Edge.prototype._drawArrow=function(t){t.strokeStyle=this.color,t.fillStyle=this.color,t.lineWidth=this._getLineWidth();var e,i;if(this.from!=this.to){e=Math.atan2(this.to.y-this.from.y,this.to.x-this.from.x);var n=this.to.x-this.from.x,s=this.to.y-this.from.y,o=Math.sqrt(n*n+s*s),r=this.from.distanceToBorder(t,e+Math.PI),a=(o-r)/o,h=a*this.from.x+(1-a)*this.to.x,d=a*this.from.y+(1-a)*this.to.y;1==this.smooth&&(e=Math.atan2(this.to.y-this.via.y,this.to.x-this.via.x),n=this.to.x-this.via.x,s=this.to.y-this.via.y,o=Math.sqrt(n*n+s*s));var l,c,u=this.to.distanceToBorder(t,e),p=(o-u)/o;if(1==this.smooth?(l=(1-p)*this.via.x+p*this.to.x,c=(1-p)*this.via.y+p*this.to.y):(l=(1-p)*this.from.x+p*this.to.x,c=(1-p)*this.from.y+p*this.to.y),t.beginPath(),t.moveTo(h,d),1==this.smooth?t.quadraticCurveTo(this.via.x,this.via.y,l,c):t.lineTo(l,c),t.stroke(),i=10+5*this.width,t.arrow(l,c,e,i),t.fill(),t.stroke(),this.label){var f=this._pointOnLine(.5);this._label(t,this.label,f.x,f.y)}}else{var m,g,v,y=this.from,_=.25*Math.max(100,this.length);y.width||y.resize(t),y.width>y.height?(m=y.x+.5*y.width,g=y.y-_,v={x:m,y:y.y,angle:.9*Math.PI}):(m=y.x+_,g=y.y-.5*y.height,v={x:y.x,y:g,angle:.6*Math.PI}),t.beginPath(),t.arc(m,g,_,0,2*Math.PI,!1),t.stroke(),i=10+5*this.width,t.arrow(v.x,v.y,v.angle,i),t.fill(),t.stroke(),this.label&&(f=this._pointOnCircle(m,g,_,.5),this._label(t,this.label,f.x,f.y))}},Edge.prototype._getDistanceToEdge=function(t,e,i,n,s,o){if(1==this.smooth){var r,a,h,d,l,c,u=1e9;for(r=0;10>r;r++)a=.1*r,h=Math.pow(1-a,2)*t+2*a*(1-a)*this.via.x+Math.pow(a,2)*i,d=Math.pow(1-a,2)*e+2*a*(1-a)*this.via.y+Math.pow(a,2)*n,l=Math.abs(s-h),c=Math.abs(o-d),u=Math.min(u,Math.sqrt(l*l+c*c));return u}var p=i-t,f=n-e,m=p*p+f*f,g=((s-t)*p+(o-e)*f)/m;g>1?g=1:0>g&&(g=0);var h=t+g*p,d=e+g*f,l=h-s,c=d-o;return Math.sqrt(l*l+c*c)},Edge.prototype.setScale=function(t){this.graphScaleInv=1/t},Edge.prototype.select=function(){this.selected=!0},Edge.prototype.unselect=function(){this.selected=!1},Edge.prototype.positionBezierNode=function(){null!==this.via&&(this.via.x=.5*(this.from.x+this.to.x),this.via.y=.5*(this.from.y+this.to.y))},Popup.prototype.setPosition=function(t,e){this.x=parseInt(t),this.y=parseInt(e)},Popup.prototype.setText=function(t){this.frame.innerHTML=t},Popup.prototype.show=function(t){if(void 0===t&&(t=!0),t){var e=this.frame.clientHeight,i=this.frame.clientWidth,n=this.frame.parentNode.clientHeight,s=this.frame.parentNode.clientWidth,o=this.y-e;o+e+this.padding>n&&(o=n-e-this.padding),os&&(r=s-i-this.padding),rthis.constants.clustering.clusterThreshold&&1==this.constants.clustering.enabled&&this.clusterToFit(this.constants.clustering.reduceToNodes,!1),this._calculateForces())},_calculateForces:function(){this._calculateGravitationalForces(),this._calculateNodeForces(),1==this.constants.smoothCurves?this._calculateSpringForcesWithSupport():this._calculateSpringForces()},_updateCalculationNodes:function(){if(1==this.constants.smoothCurves){this.calculationNodes={},this.calculationNodeIndices=[];for(var t in this.nodes)this.nodes.hasOwnProperty(t)&&(this.calculationNodes[t]=this.nodes[t]);var e=this.sectors.support.nodes;for(var i in e)e.hasOwnProperty(i)&&(this.edges.hasOwnProperty(e[i].parentEdgeId)?this.calculationNodes[i]=e[i]:e[i]._setForce(0,0));for(var n in this.calculationNodes)this.calculationNodes.hasOwnProperty(n)&&this.calculationNodeIndices.push(n)}else this.calculationNodes=this.nodes,this.calculationNodeIndices=this.nodeIndices},_calculateGravitationalForces:function(){var t,e,i,n,s,o=this.calculationNodes,r=this.constants.physics.centralGravity,a=0;for(s=0;si&&(o=g*i+u,0==i?i=.01:o/=i,n=t*o,s=e*o,r.fx-=n,r.fy-=s,a.fx+=n,a.fy+=s)}}},barnesHutMixin={_calculateNodeForces:function(){var t,e=this.calculationNodes,i=this.calculationNodeIndices,n=i.length;this._formBarnesHutTree(e,i);for(var s=this.barnesHutTree,o=0;n>o;o++)t=e[i[o]],this._getForceContribution(s.root.children.NW,t),this._getForceContribution(s.root.children.NE,t),this._getForceContribution(s.root.children.SW,t),this._getForceContribution(s.root.children.SE,t)},_getForceContribution:function(t,e){if(t.childrenCount>0){var i,n,s;if(i=t.centerOfMass.x-e.x,n=t.centerOfMass.y-e.y,s=Math.sqrt(i*i+n*n),s*t.calcSize>this.constants.physics.barnesHut.theta){0==s&&(s=.1*Math.random(),i=s);var o=this.constants.physics.barnesHut.gravitationalConstant*t.mass*e.mass/(s*s*s),r=i*o,a=n*o;e.fx+=r,e.fy+=a}else if(4==t.childrenCount)this._getForceContribution(t.children.NW,e),this._getForceContribution(t.children.NE,e),this._getForceContribution(t.children.SW,e),this._getForceContribution(t.children.SE,e);else if(t.children.data.id!=e.id){0==s&&(s=.5*Math.random(),i=s);var o=this.constants.physics.barnesHut.gravitationalConstant*t.mass*e.mass/(s*s*s),r=i*o,a=n*o;e.fx+=r,e.fy+=a}}},_formBarnesHutTree:function(t,e){for(var i,n=e.length,s=Number.MAX_VALUE,o=Number.MAX_VALUE,r=-Number.MAX_VALUE,a=-Number.MAX_VALUE,h=0;n>h;h++){var d=t[e[h]].x,l=t[e[h]].y;s>d&&(s=d),d>r&&(r=d),o>l&&(o=l),l>a&&(a=l)}var c=Math.abs(r-s)-Math.abs(a-o);c>0?(o-=.5*c,a+=.5*c):(s+=.5*c,r-=.5*c);var u=1e-5,p=Math.max(u,Math.abs(r-s)),f=.5*p,m=.5*(s+r),g=.5*(o+a),v={root:{centerOfMass:{x:0,y:0},mass:0,range:{minX:m-f,maxX:m+f,minY:g-f,maxY:g+f},size:p,calcSize:1/p,children:{data:null},maxWidth:0,level:0,childrenCount:4}};for(this._splitBranch(v.root),h=0;n>h;h++)i=t[e[h]],this._placeInTree(v.root,i);this.barnesHutTree=v},_updateBranchMass:function(t,e){var i=t.mass+e.mass,n=1/i;t.centerOfMass.x=t.centerOfMass.x*t.mass+e.x*e.mass,t.centerOfMass.x*=n,t.centerOfMass.y=t.centerOfMass.y*t.mass+e.y*e.mass,t.centerOfMass.y*=n,t.mass=i;var s=Math.max(Math.max(e.height,e.radius),e.width);t.maxWidth=t.maxWidthe.x?t.children.NW.range.maxY>e.y?this._placeInRegion(t,e,"NW"):this._placeInRegion(t,e,"SW"):t.children.NW.range.maxY>e.y?this._placeInRegion(t,e,"NE"):this._placeInRegion(t,e,"SE")},_placeInRegion:function(t,e,i){switch(t.children[i].childrenCount){case 0:t.children[i].children.data=e,t.children[i].childrenCount=1,this._updateBranchMass(t.children[i],e);break;case 1:t.children[i].children.data.x==e.x&&t.children[i].children.data.y==e.y?(e.x+=Math.random(),e.y+=Math.random(),this._placeInTree(t,e,!0)):(this._splitBranch(t.children[i]),this._placeInTree(t.children[i],e));break;case 4:this._placeInTree(t.children[i],e)}},_splitBranch:function(t){var e=null;1==t.childrenCount&&(e=t.children.data,t.mass=0,t.centerOfMass.x=0,t.centerOfMass.y=0),t.childrenCount=4,t.children.data=null,this._insertRegion(t,"NW"),this._insertRegion(t,"NE"),this._insertRegion(t,"SW"),this._insertRegion(t,"SE"),null!=e&&this._placeInTree(t,e)},_insertRegion:function(t,e){var i,n,s,o,r=.5*t.size;switch(e){case"NW":i=t.range.minX,n=t.range.minX+r,s=t.range.minY,o=t.range.minY+r;break;case"NE":i=t.range.minX+r,n=t.range.maxX,s=t.range.minY,o=t.range.minY+r;break;case"SW":i=t.range.minX,n=t.range.minX+r,s=t.range.minY+r,o=t.range.maxY;break;case"SE":i=t.range.minX+r,n=t.range.maxX,s=t.range.minY+r,o=t.range.maxY}t.children[e]={centerOfMass:{x:0,y:0},mass:0,range:{minX:i,maxX:n,minY:s,maxY:o},size:.5*t.size,calcSize:2*t.calcSize,children:{data:null},maxWidth:0,level:t.level+1,childrenCount:0}},_drawTree:function(t,e){void 0!==this.barnesHutTree&&(t.lineWidth=1,this._drawBranch(this.barnesHutTree.root,t,e))},_drawBranch:function(t,e,i){void 0===i&&(i="#FF0000"),4==t.childrenCount&&(this._drawBranch(t.children.NW,e),this._drawBranch(t.children.NE,e),this._drawBranch(t.children.SE,e),this._drawBranch(t.children.SW,e)),e.strokeStyle=i,e.beginPath(),e.moveTo(t.range.minX,t.range.minY),e.lineTo(t.range.maxX,t.range.minY),e.stroke(),e.beginPath(),e.moveTo(t.range.maxX,t.range.minY),e.lineTo(t.range.maxX,t.range.maxY),e.stroke(),e.beginPath(),e.moveTo(t.range.maxX,t.range.maxY),e.lineTo(t.range.minX,t.range.maxY),e.stroke(),e.beginPath(),e.moveTo(t.range.minX,t.range.maxY),e.lineTo(t.range.minX,t.range.minY),e.stroke()}},repulsionMixin={_calculateNodeForces:function(){var t,e,i,n,s,o,r,a,h,d,l,c=this.calculationNodes,u=this.calculationNodeIndices,p=-2/3,f=4/3,m=this.constants.physics.repulsion.nodeDistance,g=m;for(d=0;di&&(r=.5*g>i?1:v*i+f,r*=0==o?1:1+o*this.constants.clustering.forceAmplification,r/=i,n=t*r,s=e*r,a.fx-=n,a.fy-=s,h.fx+=n,h.fy+=s)}}},HierarchicalLayoutMixin={_setupHierarchicalLayout:function(){if(1==this.constants.hierarchicalLayout.enabled){var t,e,i=0,n=!1,s=!1;for(e in this.nodes)this.nodes.hasOwnProperty(e)&&(t=this.nodes[e],-1!=t.level?n=!0:s=!0,in&&(o.xFixed=!1,o.x=i[o.level].minPos,i[o.level].minPos+=i[o.level].nodeSpacing,o.edges.length>1&&this._placeBranchNodes(o.edges,o.id,i,o.level))}},_setLevel:function(t,e,i){for(var n=0;nt)&&(s.level=t,e.length>1&&this._setLevel(t+1,s.edges,s.id))}}},manipulationMixin={_clearManipulatorBar:function(){for(;this.manipulationDiv.hasChildNodes();)this.manipulationDiv.removeChild(this.manipulationDiv.firstChild)},_restoreOverloadedFunctions:function(){for(var t in this.cachedFunctions)this.cachedFunctions.hasOwnProperty(t)&&(this[t]=this.cachedFunctions[t])},_toggleEditMode:function(){this.editMode=!this.editMode;var t=document.getElementById("graph-manipulationDiv"),e=document.getElementById("graph-manipulation-closeDiv"),i=document.getElementById("graph-manipulation-editMode");1==this.editMode?(t.style.display="block",e.style.display="block",i.style.display="none",e.onclick=this._toggleEditMode.bind(this)):(t.style.display="none",e.style.display="none",i.style.display="block",e.onclick=null),this._createManipulatorBar()},_createManipulatorBar:function(){if(this.off("select",this.boundFunction),this._restoreOverloadedFunctions(),this.freezeSimulation=!1,this.blockConnectingEdgeSelection=!1,this.forceAppendSelection=!1,1==this.editMode){for(;this.manipulationDiv.hasChildNodes();)this.manipulationDiv.removeChild(this.manipulationDiv.firstChild);this.manipulationDiv.innerHTML="Add Node
Add Link",1==this._getSelectedNodeCount()&&this.triggerFunctions.edit&&(this.manipulationDiv.innerHTML+="
Edit Node"),0==this._selectionIsEmpty()&&(this.manipulationDiv.innerHTML+="
Delete selected");var t=document.getElementById("graph-manipulate-addNode");t.onclick=this._createAddNodeToolbar.bind(this);var e=document.getElementById("graph-manipulate-connectNode");if(e.onclick=this._createAddEdgeToolbar.bind(this),1==this._getSelectedNodeCount()&&this.triggerFunctions.edit){var i=document.getElementById("graph-manipulate-editNode");i.onclick=this._editNode.bind(this)}if(0==this._selectionIsEmpty()){var n=document.getElementById("graph-manipulate-delete");n.onclick=this._deleteSelected.bind(this)}var s=document.getElementById("graph-manipulation-closeDiv");s.onclick=this._toggleEditMode.bind(this),this.boundFunction=this._createManipulatorBar.bind(this),this.on("select",this.boundFunction)}else{this.editModeDiv.innerHTML="Edit";var o=document.getElementById("graph-manipulate-editModeButton");o.onclick=this._toggleEditMode.bind(this)}},_createAddNodeToolbar:function(){this._clearManipulatorBar(),this.off("select",this.boundFunction),this.manipulationDiv.innerHTML="Back
Click in an empty space to place a new node";var t=document.getElementById("graph-manipulate-back");t.onclick=this._createManipulatorBar.bind(this),this.boundFunction=this._addNode.bind(this),this.on("select",this.boundFunction)},_createAddEdgeToolbar:function(){this._clearManipulatorBar(),this._unselectAll(!0),this.freezeSimulation=!0,this.off("select",this.boundFunction),this._unselectAll(),this.forceAppendSelection=!1,this.blockConnectingEdgeSelection=!0,this.manipulationDiv.innerHTML="Back
Click on a node and drag the edge to another node to connect them.";var t=document.getElementById("graph-manipulate-back");t.onclick=this._createManipulatorBar.bind(this),this.boundFunction=this._handleConnect.bind(this),this.on("select",this.boundFunction),this.cachedFunctions._handleTouch=this._handleTouch,this.cachedFunctions._handleOnRelease=this._handleOnRelease,this._handleTouch=this._handleConnect,this._handleOnRelease=this._finishConnect,this._redraw()},_handleConnect:function(t){if(0==this._getSelectedNodeCount()){var e=this._getNodeAt(t);null!=e&&(e.clusterSize>1?alert("Cannot create edges to a cluster."):(this._selectObject(e,!1),this.sectors.support.nodes.targetNode=new Node({id:"targetNode"},{},{},this.constants),this.sectors.support.nodes.targetNode.x=e.x,this.sectors.support.nodes.targetNode.y=e.y,this.sectors.support.nodes.targetViaNode=new Node({id:"targetViaNode"},{},{},this.constants),this.sectors.support.nodes.targetViaNode.x=e.x,this.sectors.support.nodes.targetViaNode.y=e.y,this.sectors.support.nodes.targetViaNode.parentEdgeId="connectionEdge",this.edges.connectionEdge=new Edge({id:"connectionEdge",from:e.id,to:this.sectors.support.nodes.targetNode.id},this,this.constants),this.edges.connectionEdge.from=e,this.edges.connectionEdge.connected=!0,this.edges.connectionEdge.smooth=!0,this.edges.connectionEdge.selected=!0,this.edges.connectionEdge.to=this.sectors.support.nodes.targetNode,this.edges.connectionEdge.via=this.sectors.support.nodes.targetViaNode,this.cachedFunctions._handleOnDrag=this._handleOnDrag,this._handleOnDrag=function(t){var e=this._getPointer(t.gesture.center);this.sectors.support.nodes.targetNode.x=this._canvasToX(e.x),this.sectors.support.nodes.targetNode.y=this._canvasToY(e.y),this.sectors.support.nodes.targetViaNode.x=.5*(this._canvasToX(e.x)+this.edges.connectionEdge.from.x),this.sectors.support.nodes.targetViaNode.y=this._canvasToY(e.y)},this.moving=!0,this.start()))}},_finishConnect:function(t){if(1==this._getSelectedNodeCount()){this._handleOnDrag=this.cachedFunctions._handleOnDrag,delete this.cachedFunctions._handleOnDrag;var e=this.edges.connectionEdge.fromId;delete this.edges.connectionEdge,delete this.sectors.support.nodes.targetNode,delete this.sectors.support.nodes.targetViaNode;var i=this._getNodeAt(t);null!=i&&(i.clusterSize>1?alert("Cannot create edges to a cluster."):(this._createEdge(e,i.id),this._createManipulatorBar())),this._unselectAll()}},_addNode:function(){if(this._selectionIsEmpty()&&1==this.editMode){var t=this._pointerToPositionObject(this.pointerPosition),e={id:util.randomUUID(),x:t.left,y:t.top,label:"new",allowedToMove:!0};if(this.triggerFunctions.add)if(2==this.triggerFunctions.add.length){var i=this;this.triggerFunctions.add(e,function(t){i.createNodeOnClick=!0,i.nodesData.add(t),i.createNodeOnClick=!1,i._createManipulatorBar(),i.moving=!0,i.start()})}else alert("The function for add does not support two arguments (data,callback)."),this._createManipulatorBar(),this.moving=!0,this.start();else this.createNodeOnClick=!0,this.nodesData.add(e),this.createNodeOnClick=!1,this._createManipulatorBar(),this.moving=!0,this.start()}},_createEdge:function(t,e){if(1==this.editMode){var i={from:t,to:e};if(this.triggerFunctions.connect)if(2==this.triggerFunctions.connect.length){var n=this;this.triggerFunctions.connect(i,function(t){n.edgesData.add(t),n.moving=!0,n.start()})}else alert("The function for connect does not support two arguments (data,callback)."),this.moving=!0,this.start();else this.edgesData.add(i),this.moving=!0,this.start()}},_editNode:function(){if(this.triggerFunctions.edit&&1==this.editMode){var t=this._getSelectedNode(),e={id:t.id,label:t.label,group:t.group,shape:t.shape,color:{background:t.color.background,border:t.color.border,highlight:{background:t.color.highlight.background,border:t.color.highlight.border}}};if(2==this.triggerFunctions.edit.length){var i=this;this.triggerFunctions.edit(e,function(t){i.nodesData.update(t),i._createManipulatorBar(),i.moving=!0,i.start()})}else alert("The function for edit does not support two arguments (data, callback).")}else alert("No edit function has been bound to this button.")},_deleteSelected:function(){if(!this._selectionIsEmpty()&&1==this.editMode)if(this._clusterInSelection())alert("Clusters cannot be deleted.");else{var t=this.getSelectedNodes(),e=this.getSelectedEdges();if(this.triggerFunctions.delete){var i=this,n={nodes:t,edges:e};(this.triggerFunctions.delete.length=2)?this.triggerFunctions.delete(n,function(t){i.edgesData.remove(t.edges),i.nodesData.remove(t.nodes),this._unselectAll(),i.moving=!0,i.start()}):alert("The function for edit does not support two arguments (data, callback).")}else this.edgesData.remove(e),this.nodesData.remove(t),this._unselectAll(),this.moving=!0,this.start()}}},SectorMixin={_putDataInSector:function(){this.sectors.active[this._sector()].nodes=this.nodes,this.sectors.active[this._sector()].edges=this.edges,this.sectors.active[this._sector()].nodeIndices=this.nodeIndices},_switchToSector:function(t,e){void 0===e||"active"==e?this._switchToActiveSector(t):this._switchToFrozenSector(t)},_switchToActiveSector:function(t){this.nodeIndices=this.sectors.active[t].nodeIndices,this.nodes=this.sectors.active[t].nodes,this.edges=this.sectors.active[t].edges},_switchToSupportSector:function(){this.nodeIndices=this.sectors.support.nodeIndices,this.nodes=this.sectors.support.nodes,this.edges=this.sectors.support.edges},_switchToFrozenSector:function(t){this.nodeIndices=this.sectors.frozen[t].nodeIndices,this.nodes=this.sectors.frozen[t].nodes,this.edges=this.sectors.frozen[t].edges},_loadLatestSector:function(){this._switchToSector(this._sector())},_sector:function(){return this.activeSector[this.activeSector.length-1]},_previousSector:function(){if(this.activeSector.length>1)return this.activeSector[this.activeSector.length-2];throw new TypeError("there are not enough sectors in the this.activeSector array.")},_setActiveSector:function(t){this.activeSector.push(t)},_forgetLastSector:function(){this.activeSector.pop()},_createNewSector:function(t){this.sectors.active[t]={nodes:{},edges:{},nodeIndices:[],formationScale:this.scale,drawingNode:void 0},this.sectors.active[t].drawingNode=new Node({id:t,color:{background:"#eaefef",border:"495c5e"}},{},{},this.constants),this.sectors.active[t].drawingNode.clusterSize=2},_deleteActiveSector:function(t){delete this.sectors.active[t]},_deleteFrozenSector:function(t){delete this.sectors.frozen[t]},_freezeSector:function(t){this.sectors.frozen[t]=this.sectors.active[t],this._deleteActiveSector(t)},_activateSector:function(t){this.sectors.active[t]=this.sectors.frozen[t],this._deleteFrozenSector(t)},_mergeThisWithFrozen:function(t){for(var e in this.nodes)this.nodes.hasOwnProperty(e)&&(this.sectors.frozen[t].nodes[e]=this.nodes[e]);for(var i in this.edges)this.edges.hasOwnProperty(i)&&(this.sectors.frozen[t].edges[i]=this.edges[i]);for(var n=0;n1?this[t](n[0],n[1]):this[t](e)}this._loadLatestSector()},_doInSupportSector:function(t,e){if(void 0===e)this._switchToSupportSector(),this[t]();else{this._switchToSupportSector();var i=Array.prototype.splice.call(arguments,1);i.length>1?this[t](i[0],i[1]):this[t](e)}this._loadLatestSector()},_doInAllFrozenSectors:function(t,e){if(void 0===e)for(var i in this.sectors.frozen)this.sectors.frozen.hasOwnProperty(i)&&(this._switchToFrozenSector(i),this[t]());else for(var i in this.sectors.frozen)if(this.sectors.frozen.hasOwnProperty(i)){this._switchToFrozenSector(i);var n=Array.prototype.splice.call(arguments,1);n.length>1?this[t](n[0],n[1]):this[t](e)}this._loadLatestSector()},_doInAllSectors:function(t,e){var i=Array.prototype.splice.call(arguments,1);void 0===e?(this._doInAllActiveSectors(t),this._doInAllFrozenSectors(t)):i.length>1?(this._doInAllActiveSectors(t,i[0],i[1]),this._doInAllFrozenSectors(t,i[0],i[1])):(this._doInAllActiveSectors(t,e),this._doInAllFrozenSectors(t,e))},_clearNodeIndexList:function(){var t=this._sector();this.sectors.active[t].nodeIndices=[],this.nodeIndices=this.sectors.active[t].nodeIndices},_drawSectorNodes:function(t,e){var i,n=1e9,s=-1e9,o=1e9,r=-1e9;for(var a in this.sectors[e])if(this.sectors[e].hasOwnProperty(a)&&void 0!==this.sectors[e][a].drawingNode){this._switchToSector(a,e),n=1e9,s=-1e9,o=1e9,r=-1e9;for(var h in this.nodes)this.nodes.hasOwnProperty(h)&&(i=this.nodes[h],i.resize(t),o>i.x-.5*i.width&&(o=i.x-.5*i.width),ri.y-.5*i.height&&(n=i.y-.5*i.height),st&&n>s;)s%3==0?(this.forceAggregateHubs(!0),this.normalizeClusterLevels()):this.increaseClusterLevel(),i=this.nodeIndices.length,s+=1;s>0&&1==e&&this.repositionNodes(),this._updateCalculationNodes()},openCluster:function(t){var e=this.moving;if(t.clusterSize>this.constants.clustering.sectorThreshold&&this._nodeInActiveArea(t)&&("default"!=this._sector()||1!=this.nodeIndices.length)){this._addSector(t);for(var i=0;this.nodeIndices.lengthi;)this.decreaseClusterLevel(),i+=1}else this._expandClusterNode(t,!1,!0),this._updateNodeIndexList(),this._updateDynamicEdges(),this._updateCalculationNodes(),this.updateLabels();this.moving!=e&&this.start()},updateClustersDefault:function(){1==this.constants.clustering.enabled&&this.updateClusters(0,!1,!1)},increaseClusterLevel:function(){this.updateClusters(-1,!1,!0)},decreaseClusterLevel:function(){this.updateClusters(1,!1,!0)},updateClusters:function(t,e,i,n){var s=this.moving,o=this.nodeIndices.length;this.previousScale>this.scale&&0==t&&this._collapseSector(),this.previousScale>this.scale||-1==t?this._formClusters(i):(this.previousScalethis.scale||-1==t)&&(this._aggregateHubs(i),this._updateNodeIndexList()),(this.previousScale>this.scale||-1==t)&&(this.handleChains(),this._updateNodeIndexList()),this.previousScale=this.scale,this._updateDynamicEdges(),this.updateLabels(),this.nodeIndices.lengththis.constants.clustering.chainThreshold&&this._reduceAmountOfChains(1-this.constants.clustering.chainThreshold/t)},_aggregateHubs:function(t){this._getHubSize(),this._formClustersByHub(t,!1)},forceAggregateHubs:function(t){var e=this.moving,i=this.nodeIndices.length;this._aggregateHubs(!0),this._updateNodeIndexList(),this._updateDynamicEdges(),this.updateLabels(),this.nodeIndices.length!=i&&(this.clusterSession+=1),(0==t||void 0===t)&&this.moving!=e&&this.start()},_openClustersBySize:function(){for(var t in this.nodes)if(this.nodes.hasOwnProperty(t)){var e=this.nodes[t];1==e.inView()&&(e.width*this.scale>this.constants.clustering.screenSizeThreshold*this.frame.canvas.clientWidth||e.height*this.scale>this.constants.clustering.screenSizeThreshold*this.frame.canvas.clientHeight)&&this.openCluster(e)}},_openClusters:function(t,e){for(var i=0;i1&&(t.clusterSizei)){var r=o.from,a=o.to;o.to.mass>o.from.mass&&(r=o.to,a=o.from),1==a.dynamicEdgesLength?this._addToCluster(r,a,!1):1==r.dynamicEdgesLength&&this._addToCluster(a,r,!1)}}},_forceClustersByZoom:function(){for(var t in this.nodes)if(this.nodes.hasOwnProperty(t)){var e=this.nodes[t];if(1==e.dynamicEdgesLength&&0!=e.dynamicEdges.length){var i=e.dynamicEdges[0],n=i.toId==e.id?this.nodes[i.fromId]:this.nodes[i.toId];e.id!=n.id&&(n.mass>e.mass?this._addToCluster(n,e,!0):this._addToCluster(e,n,!0))}}},_clusterToSmallestNeighbour:function(t){for(var e=-1,i=null,n=0;ns.clusterSessions.length&&(e=s.clusterSessions.length,i=s)}null!=s&&void 0!==this.nodes[s.id]&&this._addToCluster(s,t,!0)},_formClustersByHub:function(t,e){for(var i in this.nodes)this.nodes.hasOwnProperty(i)&&this._formClusterFromHub(this.nodes[i],t,e)},_formClusterFromHub:function(t,e,i,n){if(void 0===n&&(n=0),t.dynamicEdgesLength>=this.hubThreshold&&0==i||t.dynamicEdgesLength==this.hubThreshold&&1==i){for(var s,o,r,a=this.constants.clustering.clusterEdgeThreshold/this.scale,h=!1,d=[],l=t.dynamicEdges.length,c=0;l>c;c++)d.push(t.dynamicEdges[c].id);if(0==e)for(h=!1,c=0;l>c;c++){var u=this.edges[d[c]];if(void 0!==u&&u.connected&&u.toId!=u.fromId&&(s=u.to.x-u.from.x,o=u.to.y-u.from.y,r=Math.sqrt(s*s+o*o),a>r)){h=!0;break}}if(!e&&h||e)for(c=0;l>c;c++)if(u=this.edges[d[c]],void 0!==u){var p=this.nodes[u.fromId==t.id?u.toId:u.fromId]; +p.dynamicEdges.length<=this.hubThreshold+n&&p.id!=t.id&&this._addToCluster(t,p,e)}}},_addToCluster:function(t,e,i){t.containedNodes[e.id]=e;for(var n=0;n1)for(var n=0;n1&&(e.label="[".concat(String(e.clusterSize),"]"))}for(t in this.nodes)this.nodes.hasOwnProperty(t)&&(e=this.nodes[t],1==e.clusterSize&&(e.label=void 0!==e.originalLabel?e.originalLabel:String(e.id)))},normalizeClusterLevels:function(){var t=0,e=1e9,i=0;for(var n in this.nodes)this.nodes.hasOwnProperty(n)&&(i=this.nodes[n].clusterSessions.length,i>t&&(t=i),e>i&&(e=i));if(t-e>this.constants.clustering.clusterLevelDifference){var s=this.nodeIndices.length,o=t-this.constants.clustering.clusterLevelDifference;for(var n in this.nodes)this.nodes.hasOwnProperty(n)&&this.nodes[n].clusterSessions.lengthn&&(n=o.dynamicEdgesLength),t+=o.dynamicEdgesLength,e+=Math.pow(o.dynamicEdgesLength,2),i+=1}t/=i,e/=i;var r=e-Math.pow(t,2),a=Math.sqrt(r);this.hubThreshold=Math.floor(t+2*a),this.hubThreshold>n&&(this.hubThreshold=n)},_reduceAmountOfChains:function(t){this.hubThreshold=2;var e=Math.floor(this.nodeIndices.length*t);for(var i in this.nodes)this.nodes.hasOwnProperty(i)&&2==this.nodes[i].dynamicEdgesLength&&this.nodes[i].dynamicEdges.length>=2&&e>0&&(this._formClusterFromHub(this.nodes[i],!0,!0,1),e-=1)},_getChainFraction:function(){var t=0,e=0;for(var i in this.nodes)this.nodes.hasOwnProperty(i)&&(2==this.nodes[i].dynamicEdgesLength&&this.nodes[i].dynamicEdges.length>=2&&(t+=1),e+=1);return t/e}},SelectionMixin={_getNodesOverlappingWith:function(t,e){var i=this.nodes;for(var n in i)i.hasOwnProperty(n)&&i[n].isOverlappingWith(t)&&e.push(n)},_getAllNodesOverlappingWith:function(t){var e=[];return this._doInAllActiveSectors("_getNodesOverlappingWith",t,e),e},_pointerToPositionObject:function(t){var e=this._canvasToX(t.x),i=this._canvasToY(t.y);return{left:e,top:i,right:e,bottom:i}},_getNodeAt:function(t){var e=this._pointerToPositionObject(t),i=this._getAllNodesOverlappingWith(e);return i.length>0?this.nodes[i[i.length-1]]:null},_getEdgesOverlappingWith:function(t,e){var i=this.edges;for(var n in i)i.hasOwnProperty(n)&&i[n].isOverlappingWith(t)&&e.push(n)},_getAllEdgesOverlappingWith:function(t){var e=[];return this._doInAllActiveSectors("_getEdgesOverlappingWith",t,e),e},_getEdgeAt:function(t){var e=this._pointerToPositionObject(t),i=this._getAllEdgesOverlappingWith(e);return i.length>0?this.edges[i[i.length-1]]:null},_addToSelection:function(t){this.selectionObj[t.id]=t},_removeFromSelection:function(t){delete this.selectionObj[t.id]},_unselectAll:function(t){void 0===t&&(t=!1);for(var e in this.selectionObj)this.selectionObj.hasOwnProperty(e)&&this.selectionObj[e].unselect();this.selectionObj={},0==t&&this.emit("select",this.getSelection())},_unselectClusters:function(t){void 0===t&&(t=!1);for(var e in this.selectionObj)this.selectionObj.hasOwnProperty(e)&&this.selectionObj[e]instanceof Node&&this.selectionObj[e].clusterSize>1&&(this.selectionObj[e].unselect(),this._removeFromSelection(this.selectionObj[e]));0==t&&this.emit("select",this.getSelection())},_getSelectedNodeCount:function(){var t=0;for(var e in this.selectionObj)this.selectionObj.hasOwnProperty(e)&&this.selectionObj[e]instanceof Node&&(t+=1);return t},_getSelectedNode:function(){for(var t in this.selectionObj)if(this.selectionObj.hasOwnProperty(t)&&this.selectionObj[t]instanceof Node)return this.selectionObj[t];return null},_getSelectedEdgeCount:function(){var t=0;for(var e in this.selectionObj)this.selectionObj.hasOwnProperty(e)&&this.selectionObj[e]instanceof Edge&&(t+=1);return t},_getSelectedObjectCount:function(){var t=0;for(var e in this.selectionObj)this.selectionObj.hasOwnProperty(e)&&(t+=1);return t},_selectionIsEmpty:function(){for(var t in this.selectionObj)if(this.selectionObj.hasOwnProperty(t))return!1;return!0},_clusterInSelection:function(){for(var t in this.selectionObj)if(this.selectionObj.hasOwnProperty(t)&&this.selectionObj[t]instanceof Node&&this.selectionObj[t].clusterSize>1)return!0;return!1},_selectConnectedEdges:function(t){for(var e=0;ee;e++){n=t[e];var s=this.nodes[n];if(!s)throw new RangeError('Node with id "'+n+'" not found');this._selectObject(s,!0,!0)}this.redraw()},_updateSelection:function(){for(var t in this.selectionObj)this.selectionObj.hasOwnProperty(t)&&(this.selectionObj[t]instanceof Node?this.nodes.hasOwnProperty(t)||delete this.selectionObj[t]:this.edges.hasOwnProperty(t)||delete this.selectionObj[t])}},NavigationMixin={_cleanNavigation:function(){var t=document.getElementById("graph-navigation_wrapper");null!=t&&this.containerElement.removeChild(t),document.onmouseup=null},_loadNavigationElements:function(){this._cleanNavigation(),this.navigationDivs={};var t=["up","down","left","right","zoomIn","zoomOut","zoomExtends"],e=["_moveUp","_moveDown","_moveLeft","_moveRight","_zoomIn","_zoomOut","zoomToFit"];this.navigationDivs.wrapper=document.createElement("div"),this.navigationDivs.wrapper.id="graph-navigation_wrapper",this.containerElement.insertBefore(this.navigationDivs.wrapper,this.frame);for(var i=0;it.x-t.width&&(n=t.x-t.width),st.y-t.height&&(e=t.y-t.height),i=this.constants.clustering.initialMaxNodes?49.07548/(s+142.05338)+91444e-8:12.662/(s+7.4147)+.0964822:1==this.constants.clustering.enabled&&s>=this.constants.clustering.initialMaxNodes?77.5271985/(s+187.266146)+476710517e-13:30.5062972/(s+19.93597763)+.08413486}else{var o=1.1*(Math.abs(n.minX)+Math.abs(n.maxX)),r=1.1*(Math.abs(n.minY)+Math.abs(n.maxY)),a=this.frame.canvas.clientWidth/o,h=this.frame.canvas.clientHeight/r;i=h>=a?a:h}i>1&&(i=1),this.pinch.mousewheelScale=i,this._setScale(i),this._centerGraph(n),(0==e||void 0===e)&&(this.moving=!0,this.start())},Graph.prototype._updateNodeIndexList=function(){this._clearNodeIndexList();for(var t in this.nodes)this.nodes.hasOwnProperty(t)&&this.nodeIndices.push(t)},Graph.prototype.setData=function(t,e){if(void 0===e&&(e=!1),t&&t.dot&&(t.nodes||t.edges))throw new SyntaxError('Data must contain either parameter "dot" or parameter pair "nodes" and "edges", but not both.');if(this.setOptions(t&&t.options),t&&t.dot){if(t&&t.dot){var i=vis.util.DOTToGraph(t.dot);return void this.setData(i)}}else this._setNodes(t&&t.nodes),this._setEdges(t&&t.edges);this._putDataInSector(),e||(this.stabilize&&this._doStabilize(),this.start())},Graph.prototype.setOptions=function(t){if(t){var e;if(void 0!==t.width&&(this.width=t.width),void 0!==t.height&&(this.height=t.height),void 0!==t.stabilize&&(this.stabilize=t.stabilize),void 0!==t.selectable&&(this.selectable=t.selectable),void 0!==t.smoothCurves&&(this.constants.smoothCurves=t.smoothCurves),t.onAdd&&(this.triggerFunctions.add=t.onAdd),t.onEdit&&(this.triggerFunctions.edit=t.onEdit),t.onConnect&&(this.triggerFunctions.connect=t.onConnect),t.onDelete&&(this.triggerFunctions.delete=t.onDelete),t.physics){if(t.physics.barnesHut){this.constants.physics.barnesHut.enabled=!0;for(e in t.physics.barnesHut)t.physics.barnesHut.hasOwnProperty(e)&&(this.constants.physics.barnesHut[e]=t.physics.barnesHut[e])}if(t.physics.repulsion){this.constants.physics.barnesHut.enabled=!1;for(e in t.physics.repulsion)t.physics.repulsion.hasOwnProperty(e)&&(this.constants.physics.repulsion[e]=t.physics.repulsion[e])}}if(t.hierarchicalLayout){this.constants.hierarchicalLayout.enabled=!0;for(e in t.hierarchicalLayout)t.hierarchicalLayout.hasOwnProperty(e)&&(this.constants.hierarchicalLayout[e]=t.hierarchicalLayout[e])}else void 0!==t.hierarchicalLayout&&(this.constants.hierarchicalLayout.enabled=!1);if(t.clustering){this.constants.clustering.enabled=!0;for(e in t.clustering)t.clustering.hasOwnProperty(e)&&(this.constants.clustering[e]=t.clustering[e])}else void 0!==t.clustering&&(this.constants.clustering.enabled=!1);if(t.navigation){this.constants.navigation.enabled=!0;for(e in t.navigation)t.navigation.hasOwnProperty(e)&&(this.constants.navigation[e]=t.navigation[e])}else void 0!==t.navigation&&(this.constants.navigation.enabled=!1);if(t.keyboard){this.constants.keyboard.enabled=!0;for(e in t.keyboard)t.keyboard.hasOwnProperty(e)&&(this.constants.keyboard[e]=t.keyboard[e])}else void 0!==t.keyboard&&(this.constants.keyboard.enabled=!1);if(t.dataManipulation){this.constants.dataManipulation.enabled=!0;for(e in t.dataManipulation)t.dataManipulation.hasOwnProperty(e)&&(this.constants.dataManipulation[e]=t.dataManipulation[e])}else void 0!==t.dataManipulation&&(this.constants.dataManipulation.enabled=!1);if(t.edges){for(e in t.edges)t.edges.hasOwnProperty(e)&&(this.constants.edges[e]=t.edges[e]);t.edges.fontColor||(this.constants.edges.fontColor=t.edges.color),t.edges.dash&&(void 0!==t.edges.dash.length&&(this.constants.edges.dash.length=t.edges.dash.length),void 0!==t.edges.dash.gap&&(this.constants.edges.dash.gap=t.edges.dash.gap),void 0!==t.edges.dash.altLength&&(this.constants.edges.dash.altLength=t.edges.dash.altLength))}if(t.nodes){for(e in t.nodes)t.nodes.hasOwnProperty(e)&&(this.constants.nodes[e]=t.nodes[e]);t.nodes.color&&(this.constants.nodes.color=Node.parseColor(t.nodes.color))}if(t.groups)for(var i in t.groups)if(t.groups.hasOwnProperty(i)){var n=t.groups[i];this.groups.add(i,n)}}this._loadPhysicsSystem(),this._loadNavigationControls(),this._loadManipulationSystem(),this._configureSmoothCurves(),this._createKeyBinds(),this.setSize(this.width,this.height),this._setTranslation(this.frame.clientWidth/2,this.frame.clientHeight/2),this._setScale(1),this._redraw()},Graph.prototype._create=function(){for(;this.containerElement.hasChildNodes();)this.containerElement.removeChild(this.containerElement.firstChild);if(this.frame=document.createElement("div"),this.frame.className="graph-frame",this.frame.style.position="relative",this.frame.style.overflow="hidden",this.frame.style.zIndex="1",this.frame.canvas=document.createElement("canvas"),this.frame.canvas.style.position="relative",this.frame.appendChild(this.frame.canvas),!this.frame.canvas.getContext){var t=document.createElement("DIV");t.style.color="red",t.style.fontWeight="bold",t.style.padding="10px",t.innerHTML="Error: your browser does not support HTML canvas",this.frame.canvas.appendChild(t)}var e=this;this.drag={},this.pinch={},this.hammer=Hammer(this.frame.canvas,{prevent_default:!0}),this.hammer.on("tap",e._onTap.bind(e)),this.hammer.on("doubletap",e._onDoubleTap.bind(e)),this.hammer.on("hold",e._onHold.bind(e)),this.hammer.on("pinch",e._onPinch.bind(e)),this.hammer.on("touch",e._onTouch.bind(e)),this.hammer.on("dragstart",e._onDragStart.bind(e)),this.hammer.on("drag",e._onDrag.bind(e)),this.hammer.on("dragend",e._onDragEnd.bind(e)),this.hammer.on("release",e._onRelease.bind(e)),this.hammer.on("mousewheel",e._onMouseWheel.bind(e)),this.hammer.on("DOMMouseScroll",e._onMouseWheel.bind(e)),this.hammer.on("mousemove",e._onMouseMoveTitle.bind(e)),this.containerElement.appendChild(this.frame)},Graph.prototype._createKeyBinds=function(){var t=this;this.mousetrap=mousetrap,this.mousetrap.reset(),1==this.constants.keyboard.enabled&&(this.mousetrap.bind("up",this._moveUp.bind(t),"keydown"),this.mousetrap.bind("up",this._yStopMoving.bind(t),"keyup"),this.mousetrap.bind("down",this._moveDown.bind(t),"keydown"),this.mousetrap.bind("down",this._yStopMoving.bind(t),"keyup"),this.mousetrap.bind("left",this._moveLeft.bind(t),"keydown"),this.mousetrap.bind("left",this._xStopMoving.bind(t),"keyup"),this.mousetrap.bind("right",this._moveRight.bind(t),"keydown"),this.mousetrap.bind("right",this._xStopMoving.bind(t),"keyup"),this.mousetrap.bind("=",this._zoomIn.bind(t),"keydown"),this.mousetrap.bind("=",this._stopZoom.bind(t),"keyup"),this.mousetrap.bind("-",this._zoomOut.bind(t),"keydown"),this.mousetrap.bind("-",this._stopZoom.bind(t),"keyup"),this.mousetrap.bind("[",this._zoomIn.bind(t),"keydown"),this.mousetrap.bind("[",this._stopZoom.bind(t),"keyup"),this.mousetrap.bind("]",this._zoomOut.bind(t),"keydown"),this.mousetrap.bind("]",this._stopZoom.bind(t),"keyup"),this.mousetrap.bind("pageup",this._zoomIn.bind(t),"keydown"),this.mousetrap.bind("pageup",this._stopZoom.bind(t),"keyup"),this.mousetrap.bind("pagedown",this._zoomOut.bind(t),"keydown"),this.mousetrap.bind("pagedown",this._stopZoom.bind(t),"keyup")),1==this.constants.dataManipulation.enabled&&(this.mousetrap.bind("escape",this._createManipulatorBar.bind(t)),this.mousetrap.bind("del",this._deleteSelected.bind(t)))},Graph.prototype._getPointer=function(t){return{x:t.pageX-vis.util.getAbsoluteLeft(this.frame.canvas),y:t.pageY-vis.util.getAbsoluteTop(this.frame.canvas)}},Graph.prototype._onTouch=function(t){this.drag.pointer=this._getPointer(t.gesture.center),this.drag.pinched=!1,this.pinch.scale=this._getScale(),this._handleTouch(this.drag.pointer)},Graph.prototype._onDragStart=function(){this._handleDragStart()},Graph.prototype._handleDragStart=function(){var t=this.drag,e=this._getNodeAt(t.pointer);if(t.dragging=!0,t.selection=[],t.translation=this._getTranslation(),t.nodeId=null,null!=e){t.nodeId=e.id,e.isSelected()||this._selectObject(e,!1);for(var i in this.selectionObj)if(this.selectionObj.hasOwnProperty(i)){var n=this.selectionObj[i];if(n instanceof Node){var s={id:n.id,node:n,x:n.x,y:n.y,xFixed:n.xFixed,yFixed:n.yFixed};n.xFixed=!0,n.yFixed=!0,t.selection.push(s)}}}},Graph.prototype._onDrag=function(t){this._handleOnDrag(t)},Graph.prototype._handleOnDrag=function(t){if(!this.drag.pinched){var e=this._getPointer(t.gesture.center),i=this,n=this.drag,s=n.selection;if(s&&s.length){var o=e.x-n.pointer.x,r=e.y-n.pointer.y;s.forEach(function(t){var e=t.node;t.xFixed||(e.x=i._canvasToX(i._xToCanvas(t.x)+o)),t.yFixed||(e.y=i._canvasToY(i._yToCanvas(t.y)+r))}),this.moving||(this.moving=!0,this.start())}else{var a=e.x-this.drag.pointer.x,h=e.y-this.drag.pointer.y;this._setTranslation(this.drag.translation.x+a,this.drag.translation.y+h),this._redraw(),this.moved=!0}}},Graph.prototype._onDragEnd=function(){this.drag.dragging=!1;var t=this.drag.selection;t&&t.forEach(function(t){t.node.xFixed=t.xFixed,t.node.yFixed=t.yFixed})},Graph.prototype._onTap=function(t){var e=this._getPointer(t.gesture.center);this.pointerPosition=e,this._handleTap(e)},Graph.prototype._onDoubleTap=function(t){var e=this._getPointer(t.gesture.center);this._handleDoubleTap(e)},Graph.prototype._onHold=function(t){var e=this._getPointer(t.gesture.center);this.pointerPosition=e,this._handleOnHold(e)},Graph.prototype._onRelease=function(t){var e=this._getPointer(t.gesture.center);this._handleOnRelease(e)},Graph.prototype._onPinch=function(t){var e=this._getPointer(t.gesture.center);this.drag.pinched=!0,"scale"in this.pinch||(this.pinch.scale=1);var i=this.pinch.scale*t.gesture.scale;this._zoom(i,e)},Graph.prototype._zoom=function(t,e){var i=this._getScale();1e-5>t&&(t=1e-5),t>10&&(t=10);var n=this._getTranslation(),s=t/i,o=(1-s)*e.x+n.x*s,r=(1-s)*e.y+n.y*s;return this.areaCenter={x:this._canvasToX(e.x),y:this._canvasToY(e.y)},this.pinch.mousewheelScale=t,this._setScale(t),this._setTranslation(o,r),this.updateClustersDefault(),this._redraw(),t},Graph.prototype._onMouseWheel=function(t){var e=0;if(t.wheelDelta?e=t.wheelDelta/120:t.detail&&(e=-t.detail/3),e){"mousewheelScale"in this.pinch||(this.pinch.mousewheelScale=1);var i=this.pinch.mousewheelScale,n=e/10;0>e&&(n/=1-n),i*=1+n;var s=util.fakeGesture(this,t),o=this._getPointer(s.center);this._zoom(i,o)}t.preventDefault()},Graph.prototype._onMouseMoveTitle=function(t){var e=util.fakeGesture(this,t),i=this._getPointer(e.center);this.popupNode&&this._checkHidePopup(i);var n=this,s=function(){n._checkShowPopup(i)};this.popupTimer&&clearInterval(this.popupTimer),this.drag.dragging||(this.popupTimer=setTimeout(s,300))},Graph.prototype._checkShowPopup=function(t){var e,i={left:this._canvasToX(t.x),top:this._canvasToY(t.y),right:this._canvasToX(t.x),bottom:this._canvasToY(t.y)},n=this.popupNode;if(void 0==this.popupNode){var s=this.nodes;for(e in s)if(s.hasOwnProperty(e)){var o=s[e];if(void 0!==o.getTitle()&&o.isOverlappingWith(i)){this.popupNode=o;break}}}if(void 0===this.popupNode){var r=this.edges;for(e in r)if(r.hasOwnProperty(e)){var a=r[e];if(a.connected&&void 0!==a.getTitle()&&a.isOverlappingWith(i)){this.popupNode=a;break}}}if(this.popupNode){if(this.popupNode!=n){var h=this;h.popup||(h.popup=new Popup(h.frame)),h.popup.setPosition(t.x-3,t.y-3),h.popup.setText(h.popupNode.getTitle()),h.popup.show()}}else this.popup&&this.popup.hide()},Graph.prototype._checkHidePopup=function(t){this.popupNode&&this._getNodeAt(t)||(this.popupNode=void 0,this.popup&&this.popup.hide())},Graph.prototype.setSize=function(t,e){this.frame.style.width=t,this.frame.style.height=e,this.frame.canvas.style.width="100%",this.frame.canvas.style.height="100%",this.frame.canvas.width=this.frame.canvas.clientWidth,this.frame.canvas.height=this.frame.canvas.clientHeight,void 0!==this.manipulationDiv&&(this.manipulationDiv.style.width=this.frame.canvas.clientWidth),this.emit("frameResize",{width:this.frame.canvas.width,height:this.frame.canvas.height})},Graph.prototype._setNodes=function(t){var e=this.nodesData;if(t instanceof DataSet||t instanceof DataView)this.nodesData=t;else if(t instanceof Array)this.nodesData=new DataSet,this.nodesData.add(t);else{if(t)throw new TypeError("Array or DataSet expected");this.nodesData=new DataSet}if(e&&util.forEach(this.nodesListeners,function(t,i){e.off(i,t)}),this.nodes={},this.nodesData){var i=this;util.forEach(this.nodesListeners,function(t,e){i.nodesData.on(e,t)});var n=this.nodesData.getIds();this._addNodes(n)}this._updateSelection()},Graph.prototype._addNodes=function(t){for(var e,i=0,n=t.length;n>i;i++){e=t[i];var s=this.nodesData.get(e),o=new Node(s,this.images,this.groups,this.constants);if(this.nodes[e]=o,(0==o.xFixed||0==o.yFixed)&&1!=this.createNodeOnClick){var r=1*t.length,a=2*Math.PI*Math.random();0==o.xFixed&&(o.x=r*Math.cos(a)),0==o.yFixed&&(o.y=r*Math.sin(a)),this.moving=!0}}this._updateNodeIndexList(),this._updateCalculationNodes(),this._reconnectEdges(),this._updateValueRange(this.nodes),this.updateLabels()},Graph.prototype._updateNodes=function(t){for(var e=this.nodes,i=this.nodesData,n=0,s=t.length;s>n;n++){var o=t[n],r=e[o],a=i.get(o);r?r.setProperties(a,this.constants):(r=new Node(properties,this.images,this.groups,this.constants),e[o]=r,r.isFixed()||(this.moving=!0))}this._updateNodeIndexList(),this._reconnectEdges(),this._updateValueRange(e)},Graph.prototype._removeNodes=function(t){for(var e=this.nodes,i=0,n=t.length;n>i;i++){var s=t[i];delete e[s]}this._updateNodeIndexList(),this._reconnectEdges(),this._updateSelection(),this._updateValueRange(e)},Graph.prototype._setEdges=function(t){var e=this.edgesData;if(t instanceof DataSet||t instanceof DataView)this.edgesData=t;else if(t instanceof Array)this.edgesData=new DataSet,this.edgesData.add(t);else{if(t)throw new TypeError("Array or DataSet expected");this.edgesData=new DataSet}if(e&&util.forEach(this.edgesListeners,function(t,i){e.off(i,t)}),this.edges={},this.edgesData){var i=this;util.forEach(this.edgesListeners,function(t,e){i.edgesData.on(e,t)});var n=this.edgesData.getIds();this._addEdges(n)}this._reconnectEdges()},Graph.prototype._addEdges=function(t){for(var e=this.edges,i=this.edgesData,n=0,s=t.length;s>n;n++){var o=t[n],r=e[o];r&&r.disconnect();var a=i.get(o,{showInternalIds:!0});e[o]=new Edge(a,this,this.constants)}this.moving=!0,this._updateValueRange(e),this._createBezierNodes(),this._updateCalculationNodes()},Graph.prototype._updateEdges=function(t){for(var e=this.edges,i=this.edgesData,n=0,s=t.length;s>n;n++){var o=t[n],r=i.get(o),a=e[o];a?(a.disconnect(),a.setProperties(r,this.constants),a.connect()):(a=new Edge(r,this,this.constants),this.edges[o]=a)}this._createBezierNodes(),this.moving=!0,this._updateValueRange(e)},Graph.prototype._removeEdges=function(t){for(var e=this.edges,i=0,n=t.length;n>i;i++){var s=t[i],o=e[s];o&&(null!=o.via&&delete this.sectors.support.nodes[o.via.id],o.disconnect(),delete e[s])}this.moving=!0,this._updateValueRange(e),this._updateCalculationNodes()},Graph.prototype._reconnectEdges=function(){var t,e=this.nodes,i=this.edges; +for(t in e)e.hasOwnProperty(t)&&(e[t].edges=[]);for(t in i)if(i.hasOwnProperty(t)){var n=i[t];n.from=null,n.to=null,n.connect()}},Graph.prototype._updateValueRange=function(t){var e,i=void 0,n=void 0;for(e in t)if(t.hasOwnProperty(e)){var s=t[e].getValue();void 0!==s&&(i=void 0===i?s:Math.min(s,i),n=void 0===n?s:Math.max(s,n))}if(void 0!==i&&void 0!==n)for(e in t)t.hasOwnProperty(e)&&t[e].setValueRange(i,n)},Graph.prototype.redraw=function(){this.setSize(this.width,this.height),this._redraw()},Graph.prototype._redraw=function(){var t=this.frame.canvas.getContext("2d"),e=this.frame.canvas.width,i=this.frame.canvas.height;t.clearRect(0,0,e,i),t.save(),t.translate(this.translation.x,this.translation.y),t.scale(this.scale,this.scale),this.canvasTopLeft={x:this._canvasToX(0),y:this._canvasToY(0)},this.canvasBottomRight={x:this._canvasToX(this.frame.canvas.clientWidth),y:this._canvasToY(this.frame.canvas.clientHeight)},this._doInAllSectors("_drawAllSectorNodes",t),this._doInAllSectors("_drawEdges",t),this._doInAllSectors("_drawNodes",t,!1),t.restore()},Graph.prototype._setTranslation=function(t,e){void 0===this.translation&&(this.translation={x:0,y:0}),void 0!==t&&(this.translation.x=t),void 0!==e&&(this.translation.y=e)},Graph.prototype._getTranslation=function(){return{x:this.translation.x,y:this.translation.y}},Graph.prototype._setScale=function(t){this.scale=t},Graph.prototype._getScale=function(){return this.scale},Graph.prototype._canvasToX=function(t){return(t-this.translation.x)/this.scale},Graph.prototype._xToCanvas=function(t){return t*this.scale+this.translation.x},Graph.prototype._canvasToY=function(t){return(t-this.translation.y)/this.scale},Graph.prototype._yToCanvas=function(t){return t*this.scale+this.translation.y},Graph.prototype._drawNodes=function(t,e){void 0===e&&(e=!1);var i=this.nodes,n=[];for(var s in i)i.hasOwnProperty(s)&&(i[s].setScaleAndPos(this.scale,this.canvasTopLeft,this.canvasBottomRight),i[s].isSelected()?n.push(s):(i[s].inArea()||e)&&i[s].draw(t));for(var o=0,r=n.length;r>o;o++)(i[n[o]].inArea()||e)&&i[n[o]].draw(t)},Graph.prototype._drawEdges=function(t){var e=this.edges;for(var i in e)if(e.hasOwnProperty(i)){var n=e[i];n.setScale(this.scale),n.connected&&e[i].draw(t)}},Graph.prototype._doStabilize=function(){for(var t=0;this.moving&&t0)for(t in i)i.hasOwnProperty(t)&&i[t].discreteStepLimited(e,this.constants.maxVelocity);else for(t in i)i.hasOwnProperty(t)&&i[t].discreteStep(e);var n=this.constants.minVelocity/Math.max(this.scale,.05);this.moving=n>.5*this.constants.maxVelocity?!0:this._isMoving(n)},Graph.prototype._physicsTick=function(){this.freezeSimulation||this.moving&&(this._doInAllActiveSectors("_initializeForceCalculation"),this.constants.smoothCurves&&this._doInSupportSector("_discreteStepNodes"),this._doInAllActiveSectors("_discreteStepNodes"),this._findCenter(this._getRange()))},Graph.prototype._animationStep=function(){this.timer=void 0,this._handleNavigation(),this.start();var t=Date.now(),e=1;this._physicsTick();for(var i=Date.now()-t;in;++n)i[n].apply(this,e)}return this},i.prototype.listeners=function(t){return this._callbacks=this._callbacks||{},this._callbacks[t]||[]},i.prototype.hasListeners=function(t){return!!this.listeners(t).length}},{}],3:[function(t,e){!function(t,i){"use strict";function n(){if(!s.READY){s.event.determineEventTypes();for(var t in s.gestures)s.gestures.hasOwnProperty(t)&&s.detection.register(s.gestures[t]);s.event.onTouch(s.DOCUMENT,s.EVENT_MOVE,s.detection.detect),s.event.onTouch(s.DOCUMENT,s.EVENT_END,s.detection.detect),s.READY=!0}}var s=function(t,e){return new s.Instance(t,e||{})};s.defaults={stop_browser_behavior:{userSelect:"none",touchAction:"none",touchCallout:"none",contentZooming:"none",userDrag:"none",tapHighlightColor:"rgba(0,0,0,0)"}},s.HAS_POINTEREVENTS=navigator.pointerEnabled||navigator.msPointerEnabled,s.HAS_TOUCHEVENTS="ontouchstart"in t,s.MOBILE_REGEX=/mobile|tablet|ip(ad|hone|od)|android/i,s.NO_MOUSEEVENTS=s.HAS_TOUCHEVENTS&&navigator.userAgent.match(s.MOBILE_REGEX),s.EVENT_TYPES={},s.DIRECTION_DOWN="down",s.DIRECTION_LEFT="left",s.DIRECTION_UP="up",s.DIRECTION_RIGHT="right",s.POINTER_MOUSE="mouse",s.POINTER_TOUCH="touch",s.POINTER_PEN="pen",s.EVENT_START="start",s.EVENT_MOVE="move",s.EVENT_END="end",s.DOCUMENT=document,s.plugins={},s.READY=!1,s.Instance=function(t,e){var i=this;return n(),this.element=t,this.enabled=!0,this.options=s.utils.extend(s.utils.extend({},s.defaults),e||{}),this.options.stop_browser_behavior&&s.utils.stopDefaultBrowserBehavior(this.element,this.options.stop_browser_behavior),s.event.onTouch(t,s.EVENT_START,function(t){i.enabled&&s.detection.startDetect(i,t)}),this},s.Instance.prototype={on:function(t,e){for(var i=t.split(" "),n=0;n0&&e==s.EVENT_END?e=s.EVENT_MOVE:l||(e=s.EVENT_END),l||null===o?o=h:h=o,i.call(s.detection,n.collectEventData(t,e,h)),s.HAS_POINTEREVENTS&&e==s.EVENT_END&&(l=s.PointerEvent.updatePointer(e,h))),l||(o=null,r=!1,a=!1,s.PointerEvent.reset())}})},determineEventTypes:function(){var t;t=s.HAS_POINTEREVENTS?s.PointerEvent.getEvents():s.NO_MOUSEEVENTS?["touchstart","touchmove","touchend touchcancel"]:["touchstart mousedown","touchmove mousemove","touchend touchcancel mouseup"],s.EVENT_TYPES[s.EVENT_START]=t[0],s.EVENT_TYPES[s.EVENT_MOVE]=t[1],s.EVENT_TYPES[s.EVENT_END]=t[2]},getTouchList:function(t){return s.HAS_POINTEREVENTS?s.PointerEvent.getTouchList():t.touches?t.touches:[{identifier:1,pageX:t.pageX,pageY:t.pageY,target:t.target}]},collectEventData:function(t,e,i){var n=this.getTouchList(i,e),o=s.POINTER_TOUCH;return(i.type.match(/mouse/)||s.PointerEvent.matchType(s.POINTER_MOUSE,i))&&(o=s.POINTER_MOUSE),{center:s.utils.getCenter(n),timeStamp:(new Date).getTime(),target:i.target,touches:n,eventType:e,pointerType:o,srcEvent:i,preventDefault:function(){this.srcEvent.preventManipulation&&this.srcEvent.preventManipulation(),this.srcEvent.preventDefault&&this.srcEvent.preventDefault()},stopPropagation:function(){this.srcEvent.stopPropagation()},stopDetect:function(){return s.detection.stopDetect()}}}},s.PointerEvent={pointers:{},getTouchList:function(){var t=this,e=[];return Object.keys(t.pointers).sort().forEach(function(i){e.push(t.pointers[i])}),e},updatePointer:function(t,e){return t==s.EVENT_END?this.pointers={}:(e.identifier=e.pointerId,this.pointers[e.pointerId]=e),Object.keys(this.pointers).length},matchType:function(t,e){if(!e.pointerType)return!1;var i={};return i[s.POINTER_MOUSE]=e.pointerType==e.MSPOINTER_TYPE_MOUSE||e.pointerType==s.POINTER_MOUSE,i[s.POINTER_TOUCH]=e.pointerType==e.MSPOINTER_TYPE_TOUCH||e.pointerType==s.POINTER_TOUCH,i[s.POINTER_PEN]=e.pointerType==e.MSPOINTER_TYPE_PEN||e.pointerType==s.POINTER_PEN,i[t]},getEvents:function(){return["pointerdown MSPointerDown","pointermove MSPointerMove","pointerup pointercancel MSPointerUp MSPointerCancel"]},reset:function(){this.pointers={}}},s.utils={extend:function(t,e,n){for(var s in e)t[s]!==i&&n||(t[s]=e[s]);return t},hasParent:function(t,e){for(;t;){if(t==e)return!0;t=t.parentNode}return!1},getCenter:function(t){for(var e=[],i=[],n=0,s=t.length;s>n;n++)e.push(t[n].pageX),i.push(t[n].pageY);return{pageX:(Math.min.apply(Math,e)+Math.max.apply(Math,e))/2,pageY:(Math.min.apply(Math,i)+Math.max.apply(Math,i))/2}},getVelocity:function(t,e,i){return{x:Math.abs(e/t)||0,y:Math.abs(i/t)||0}},getAngle:function(t,e){var i=e.pageY-t.pageY,n=e.pageX-t.pageX;return 180*Math.atan2(i,n)/Math.PI},getDirection:function(t,e){var i=Math.abs(t.pageX-e.pageX),n=Math.abs(t.pageY-e.pageY);return i>=n?t.pageX-e.pageX>0?s.DIRECTION_LEFT:s.DIRECTION_RIGHT:t.pageY-e.pageY>0?s.DIRECTION_UP:s.DIRECTION_DOWN},getDistance:function(t,e){var i=e.pageX-t.pageX,n=e.pageY-t.pageY;return Math.sqrt(i*i+n*n)},getScale:function(t,e){return t.length>=2&&e.length>=2?this.getDistance(e[0],e[1])/this.getDistance(t[0],t[1]):1},getRotation:function(t,e){return t.length>=2&&e.length>=2?this.getAngle(e[1],e[0])-this.getAngle(t[1],t[0]):0},isVertical:function(t){return t==s.DIRECTION_UP||t==s.DIRECTION_DOWN},stopDefaultBrowserBehavior:function(t,e){var i,n=["webkit","khtml","moz","ms","o",""];if(e&&t.style){for(var s=0;si;i++){var o=this.gestures[i];if(!this.stopped&&e[o.name]!==!1&&o.handler.call(o,t,this.current.inst)===!1){this.stopDetect();break}}return this.current&&(this.current.lastEvent=t),t.eventType==s.EVENT_END&&!t.touches.length-1&&this.stopDetect(),t}},stopDetect:function(){this.previous=s.utils.extend({},this.current),this.current=null,this.stopped=!0},extendEventData:function(t){var e=this.current.startEvent;if(e&&(t.touches.length!=e.touches.length||t.touches===e.touches)){e.touches=[];for(var i=0,n=t.touches.length;n>i;i++)e.touches.push(s.utils.extend({},t.touches[i]))}var o=t.timeStamp-e.timeStamp,r=t.center.pageX-e.center.pageX,a=t.center.pageY-e.center.pageY,h=s.utils.getVelocity(o,r,a);return s.utils.extend(t,{deltaTime:o,deltaX:r,deltaY:a,velocityX:h.x,velocityY:h.y,distance:s.utils.getDistance(e.center,t.center),angle:s.utils.getAngle(e.center,t.center),direction:s.utils.getDirection(e.center,t.center),scale:s.utils.getScale(e.touches,t.touches),rotation:s.utils.getRotation(e.touches,t.touches),startEvent:e}),t},register:function(t){var e=t.defaults||{};return e[t.name]===i&&(e[t.name]=!0),s.utils.extend(s.defaults,e,!0),t.index=t.index||1e3,this.gestures.push(t),this.gestures.sort(function(t,e){return t.indexe.index?1:0}),this.gestures}},s.gestures=s.gestures||{},s.gestures.Hold={name:"hold",index:10,defaults:{hold_timeout:500,hold_threshold:1},timer:null,handler:function(t,e){switch(t.eventType){case s.EVENT_START:clearTimeout(this.timer),s.detection.current.name=this.name,this.timer=setTimeout(function(){"hold"==s.detection.current.name&&e.trigger("hold",t)},e.options.hold_timeout);break;case s.EVENT_MOVE:t.distance>e.options.hold_threshold&&clearTimeout(this.timer);break;case s.EVENT_END:clearTimeout(this.timer)}}},s.gestures.Tap={name:"tap",index:100,defaults:{tap_max_touchtime:250,tap_max_distance:10,tap_always:!0,doubletap_distance:20,doubletap_interval:300},handler:function(t,e){if(t.eventType==s.EVENT_END){var i=s.detection.previous,n=!1;if(t.deltaTime>e.options.tap_max_touchtime||t.distance>e.options.tap_max_distance)return;i&&"tap"==i.name&&t.timeStamp-i.lastEvent.timeStamp0&&t.touches.length>e.options.swipe_max_touches)return;(t.velocityX>e.options.swipe_velocity||t.velocityY>e.options.swipe_velocity)&&(e.trigger(this.name,t),e.trigger(this.name+t.direction,t))}}},s.gestures.Drag={name:"drag",index:50,defaults:{drag_min_distance:10,drag_max_touches:1,drag_block_horizontal:!1,drag_block_vertical:!1,drag_lock_to_axis:!1,drag_lock_min_distance:25},triggered:!1,handler:function(t,e){if(s.detection.current.name!=this.name&&this.triggered)return e.trigger(this.name+"end",t),void(this.triggered=!1);if(!(e.options.drag_max_touches>0&&t.touches.length>e.options.drag_max_touches))switch(t.eventType){case s.EVENT_START:this.triggered=!1;break;case s.EVENT_MOVE:if(t.distancee.options.transform_min_rotation&&e.trigger("rotate",t),i>e.options.transform_min_scale&&(e.trigger("pinch",t),e.trigger("pinch"+(t.scale<1?"in":"out"),t));break;case s.EVENT_END:this.triggered&&e.trigger(this.name+"end",t),this.triggered=!1}}},s.gestures.Touch={name:"touch",index:-1/0,defaults:{prevent_default:!1,prevent_mouseevents:!1},handler:function(t,e){return e.options.prevent_mouseevents&&t.pointerType==s.POINTER_MOUSE?void t.stopDetect():(e.options.prevent_default&&t.preventDefault(),void(t.eventType==s.EVENT_START&&e.trigger(this.name,t)))}},s.gestures.Release={name:"release",index:1/0,handler:function(t,e){t.eventType==s.EVENT_END&&e.trigger(this.name,t)}},"object"==typeof e&&"object"==typeof e.exports?e.exports=s:(t.Hammer=s,"function"==typeof t.define&&t.define.amd&&t.define("hammer",[],function(){return s}))}(this)},{}],4:[function(t,e){(function(i){function 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