From c34d9697b2bc8b7cce798c92d25602ff34334266 Mon Sep 17 00:00:00 2001 From: Alex de Mulder Date: Sat, 8 Feb 2014 17:34:14 +0100 Subject: [PATCH] bughunt 4, going back commits --- dist/vis.js | 21055 ------------------------------------ src/graph/ClusterMixin.js | 6 +- src/graph/Edge.js | 4 +- src/graph/Graph.js | 5 +- src/graph/physicsMixin.js | 34 +- 5 files changed, 22 insertions(+), 21082 deletions(-) delete mode 100644 dist/vis.js diff --git a/dist/vis.js b/dist/vis.js deleted file mode 100644 index 194426c9..00000000 --- a/dist/vis.js +++ /dev/null @@ -1,21055 +0,0 @@ -/** - * vis.js - * https://github.com/almende/vis - * - * A dynamic, browser-based visualization library. - * - * @version 0.5.0-SNAPSHOT - * @date 2014-02-08 - * - * @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(e){if("object"==typeof exports)module.exports=e();else if("function"==typeof define&&define.amd)define(e);else{var f;"undefined"!=typeof window?f=window:"undefined"!=typeof global?f=global:"undefined"!=typeof self&&(f=self),f.vis=e()}}(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);throw new Error("Cannot find module '"+o+"'")}var f=n[o]={exports:{}};t[o][0].call(f.exports,function(e){var n=t[o][1][e];return s(n?n:e)},f,f.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o>> 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; -}; - -/** - * Stop event propagation - */ -util.stopPropagation = function stopPropagation(event) { - if (!event) - event = window.event; - - if (event.stopPropagation) { - event.stopPropagation(); // non-IE browsers - } - else { - event.cancelBubble = true; // IE browsers - } -}; - -/** - * 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 - return Hammer.event.collectEventData(this, eventType, event); - - // for hammer.js 1.0.6 - //var touches = Hammer.event.getTouchList(event, eventType); - //return Hammer.event.collectEventData(this, eventType, touches, event); -}; - -/** - * Cancels the event if it is cancelable, without stopping further propagation of the event. - */ -util.preventDefault = function preventDefault (event) { - if (!event) - event = window.event; - - if (event.preventDefault) { - event.preventDefault(); // non-IE browsers - } - else { - event.returnValue = false; // IE browsers - } -}; - - -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); -} - - -/** - * Event listener (singleton) - */ -// TODO: replace usage of the event listener for the EventBus -var events = { - 'listeners': [], - - /** - * Find a single listener by its object - * @param {Object} object - * @return {Number} index -1 when not found - */ - 'indexOf': function (object) { - var listeners = this.listeners; - for (var i = 0, iMax = this.listeners.length; i < iMax; i++) { - var listener = listeners[i]; - if (listener && listener.object == object) { - return i; - } - } - return -1; - }, - - /** - * Add an event listener - * @param {Object} object - * @param {String} event The name of an event, for example 'select' - * @param {function} callback The callback method, called when the - * event takes place - */ - 'addListener': function (object, event, callback) { - var index = this.indexOf(object); - var listener = this.listeners[index]; - if (!listener) { - listener = { - 'object': object, - 'events': {} - }; - this.listeners.push(listener); - } - - var callbacks = listener.events[event]; - if (!callbacks) { - callbacks = []; - listener.events[event] = callbacks; - } - - // add the callback if it does not yet exist - if (callbacks.indexOf(callback) == -1) { - callbacks.push(callback); - } - }, - - /** - * Remove an event listener - * @param {Object} object - * @param {String} event The name of an event, for example 'select' - * @param {function} callback The registered callback method - */ - 'removeListener': function (object, event, callback) { - var index = this.indexOf(object); - var listener = this.listeners[index]; - if (listener) { - var callbacks = listener.events[event]; - if (callbacks) { - index = callbacks.indexOf(callback); - if (index != -1) { - callbacks.splice(index, 1); - } - - // remove the array when empty - if (callbacks.length == 0) { - delete listener.events[event]; - } - } - - // count the number of registered events. remove listener when empty - var count = 0; - var events = listener.events; - for (var e in events) { - if (events.hasOwnProperty(e)) { - count++; - } - } - if (count == 0) { - delete this.listeners[index]; - } - } - }, - - /** - * Remove all registered event listeners - */ - 'removeAllListeners': function () { - this.listeners = []; - }, - - /** - * Trigger an event. All registered event handlers will be called - * @param {Object} object - * @param {String} event - * @param {Object} properties (optional) - */ - 'trigger': function (object, event, properties) { - var index = this.indexOf(object); - var listener = this.listeners[index]; - if (listener) { - var callbacks = listener.events[event]; - if (callbacks) { - for (var i = 0, iMax = callbacks.length; i < iMax; i++) { - callbacks[i](properties); - } - } - } - } -}; - -/** - * An event bus can be used to emit events, and to subscribe to events - * @constructor EventBus - */ -function EventBus() { - this.subscriptions = []; -} - -/** - * Subscribe to an event - * @param {String | RegExp} event The event can be a regular expression, or - * a string with wildcards, like 'server.*'. - * @param {function} callback. Callback are called with three parameters: - * {String} event, {*} [data], {*} [source] - * @param {*} [target] - * @returns {String} id A subscription id - */ -EventBus.prototype.on = function (event, callback, target) { - var regexp = (event instanceof RegExp) ? - event : - new RegExp(event.replace('*', '\\w+')); - - var subscription = { - id: util.randomUUID(), - event: event, - regexp: regexp, - callback: (typeof callback === 'function') ? callback : null, - target: target - }; - - this.subscriptions.push(subscription); - - return subscription.id; -}; - -/** - * Unsubscribe from an event - * @param {String | Object} filter Filter for subscriptions to be removed - * Filter can be a string containing a - * subscription id, or an object containing - * one or more of the fields id, event, - * callback, and target. - */ -EventBus.prototype.off = function (filter) { - var i = 0; - while (i < this.subscriptions.length) { - var subscription = this.subscriptions[i]; - - var match = true; - if (filter instanceof Object) { - // filter is an object. All fields must match - for (var prop in filter) { - if (filter.hasOwnProperty(prop)) { - if (filter[prop] !== subscription[prop]) { - match = false; - } - } - } - } - else { - // filter is a string, filter on id - match = (subscription.id == filter); - } - - if (match) { - this.subscriptions.splice(i, 1); - } - else { - i++; - } - } -}; - -/** - * Emit an event - * @param {String} event - * @param {*} [data] - * @param {*} [source] - */ -EventBus.prototype.emit = function (event, data, source) { - for (var i =0; i < this.subscriptions.length; i++) { - var subscription = this.subscriptions[i]; - if (subscription.regexp.test(event)) { - if (subscription.callback) { - subscription.callback(event, data, source); - } - } - } -}; - -/** - * 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.subscribe) { - this.data.subscribe('*', 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.subscribe = DataSet.prototype.subscribe; -DataView.prototype.unsubscribe = DataSet.prototype.unsubscribe; -DataView.prototype._trigger = DataSet.prototype._trigger; - -/** - * @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 - */ -TimeStep.prototype.snap = function(date) { - if (this.scale == TimeStep.SCALE.YEAR) { - var year = date.getFullYear() + Math.round(date.getMonth() / 12); - date.setFullYear(Math.round(year / this.step) * this.step); - date.setMonth(0); - date.setDate(0); - date.setHours(0); - date.setMinutes(0); - date.setSeconds(0); - date.setMilliseconds(0); - } - else if (this.scale == TimeStep.SCALE.MONTH) { - if (date.getDate() > 15) { - date.setDate(1); - date.setMonth(date.getMonth() + 1); - // important: first set Date to 1, after that change the month. - } - else { - date.setDate(1); - } - - date.setHours(0); - date.setMinutes(0); - date.setSeconds(0); - date.setMilliseconds(0); - } - else if (this.scale == TimeStep.SCALE.DAY || - this.scale == TimeStep.SCALE.WEEKDAY) { - //noinspection FallthroughInSwitchStatementJS - switch (this.step) { - case 5: - case 2: - date.setHours(Math.round(date.getHours() / 24) * 24); break; - default: - date.setHours(Math.round(date.getHours() / 12) * 12); break; - } - date.setMinutes(0); - date.setSeconds(0); - date.setMilliseconds(0); - } - else if (this.scale == TimeStep.SCALE.HOUR) { - switch (this.step) { - case 4: - date.setMinutes(Math.round(date.getMinutes() / 60) * 60); break; - default: - date.setMinutes(Math.round(date.getMinutes() / 30) * 30); break; - } - date.setSeconds(0); - date.setMilliseconds(0); - } else if (this.scale == TimeStep.SCALE.MINUTE) { - //noinspection FallthroughInSwitchStatementJS - switch (this.step) { - case 15: - case 10: - date.setMinutes(Math.round(date.getMinutes() / 5) * 5); - date.setSeconds(0); - break; - case 5: - date.setSeconds(Math.round(date.getSeconds() / 60) * 60); break; - default: - date.setSeconds(Math.round(date.getSeconds() / 30) * 30); break; - } - date.setMilliseconds(0); - } - else if (this.scale == TimeStep.SCALE.SECOND) { - //noinspection FallthroughInSwitchStatementJS - switch (this.step) { - case 15: - case 10: - date.setSeconds(Math.round(date.getSeconds() / 5) * 5); - date.setMilliseconds(0); - break; - case 5: - date.setMilliseconds(Math.round(date.getMilliseconds() / 1000) * 1000); break; - default: - date.setMilliseconds(Math.round(date.getMilliseconds() / 500) * 500); break; - } - } - else if (this.scale == TimeStep.SCALE.MILLISECOND) { - var step = this.step > 5 ? this.step / 2 : 1; - date.setMilliseconds(Math.round(date.getMilliseconds() / step) * step); - } -}; - -/** - * 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} parent - * @param {Object} [options] - */ -function Stack (parent, options) { - this.parent = parent; - - 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} parent - * {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 parent 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. The items are ordered by width first, and by left position - * second. - * 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.parent.items; - if (!items) { - throw new Error('Cannot stack items: parent 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.getWidth()) && - (a.left + a.getWidth() + 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); -} - -/** - * 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 {Component} component - * @param {String} event Available events: 'move', 'zoom' - * @param {String} direction Available directions: 'horizontal', 'vertical' - */ -Range.prototype.subscribe = function (component, event, direction) { - var me = this; - - if (event == 'move') { - // drag start listener - component.on('dragstart', function (event) { - me._onDragStart(event, component); - }); - - // drag listener - component.on('drag', function (event) { - me._onDrag(event, component, direction); - }); - - // drag end listener - component.on('dragend', function (event) { - me._onDragEnd(event, component); - }); - } - else if (event == 'zoom') { - // mouse wheel - function mousewheel (event) { - me._onMouseWheel(event, component, direction); - } - component.on('mousewheel', mousewheel); - component.on('DOMMouseScroll', mousewheel); // For FF - - // pinch - component.on('touch', function (event) { - me._onTouch(); - }); - component.on('pinch', function (event) { - me._onPinch(event, component, direction); - }); - } - else { - throw new TypeError('Unknown event "' + event + '". ' + - 'Choose "move" or "zoom".'); - } -}; - -/** - * Add event listener - * @param {String} event Name of the event. - * Available events: 'rangechange', 'rangechanged' - * @param {function} callback Callback function, invoked as callback({start: Date, end: Date}) - */ -Range.prototype.on = function on (event, callback) { - var available = ['rangechange', 'rangechanged']; - - if (available.indexOf(event) == -1) { - throw new Error('Unknown event "' + event + '". Choose from ' + available.join()); - } - - events.addListener(this, event, callback); -}; - -/** - * Remove an event listener - * @param {String} event name of the event - * @param {function} callback callback handler - */ -Range.prototype.off = function off (event, callback) { - events.removeListener(this, event, callback); -}; - -/** - * Trigger an event - * @param {String} event name of the event, available events: 'rangechange', - * 'rangechanged' - * @private - */ -Range.prototype._trigger = function (event) { - events.trigger(this, event, { - start: this.start, - end: this.end - }); -}; - -/** - * 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) { - this._trigger('rangechange'); - this._trigger('rangechanged'); - } -}; - -/** - * 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.pinching) return; - - 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); - - // 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.pinching) 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); - - // fire a rangechange event - this._trigger('rangechange'); -}; - -/** - * 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.pinching) return; - - if (component.frame) { - component.frame.style.cursor = 'auto'; - } - - // fire a rangechanged event - this._trigger('rangechanged'); -}; - -/** - * 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); - - // 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.touches[0], 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) - util.preventDefault(event); -}; - -/** - * On start of a touch gesture, initialize scale to 1 - * @private - */ -Range.prototype._onTouch = function () { - touchParams.start = this.start; - touchParams.end = this.end; - touchParams.pinching = false; - touchParams.center = null; -}; - -/** - * Handle pinch event - * @param {Event} event - * @param {Component} component - * @param {String} direction 'horizontal' or 'vertical' - * @private - */ -Range.prototype._onPinch = function (event, component, direction) { - touchParams.pinching = true; - - 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 visual components - */ -function Controller () { - this.id = util.randomUUID(); - this.components = {}; - - this.repaintTimer = undefined; - this.reflowTimer = undefined; -} - -/** - * 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.controller = 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) { - delete this.components[id]; - } -}; - -/** - * Request a reflow. The controller will schedule a reflow - * @param {Boolean} [force] If true, an immediate reflow is forced. Default - * is false. - */ -Controller.prototype.requestReflow = function requestReflow(force) { - if (force) { - this.reflow(); - } - else { - if (!this.reflowTimer) { - var me = this; - this.reflowTimer = setTimeout(function () { - me.reflowTimer = undefined; - 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. - */ -Controller.prototype.requestRepaint = function requestRepaint(force) { - if (force) { - this.repaint(); - } - else { - if (!this.repaintTimer) { - var me = this; - this.repaintTimer = setTimeout(function () { - me.repaintTimer = undefined; - me.repaint(); - }, 0); - } - } -}; - -/** - * 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); - - // 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); - - // 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] - * {EventBus} [eventBus] - * {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; -}; - -/** - * 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.requestRepaint(); - } - 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.requestReflow(); - } - 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 = 'panel'; - - 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; - - this.options = options || {}; - this.defaultOptions = { - autoResize: true - }; - - this.listeners = {}; // event listeners -} - -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; - - 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; - 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._updateEventEmitters(); - 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 -}; - -/** - * Event handler - * @param {String} event name of the event, for example 'click', 'mousemove' - * @param {function} callback callback handler, invoked with the raw HTML Event - * as parameter. - */ -RootPanel.prototype.on = function (event, callback) { - // register the listener at this component - var arr = this.listeners[event]; - if (!arr) { - arr = []; - this.listeners[event] = arr; - } - arr.push(callback); - - this._updateEventEmitters(); -}; - -/** - * Update the event listeners for all event emitters - * @private - */ -RootPanel.prototype._updateEventEmitters = function () { - if (this.listeners) { - var me = this; - util.forEach(this.listeners, function (listeners, event) { - if (!me.emitters) { - me.emitters = {}; - } - if (!(event in me.emitters)) { - // create event - var frame = me.frame; - if (frame) { - //console.log('Created a listener for event ' + event + ' on component ' + me.id); // TODO: cleanup logging - var callback = function(event) { - listeners.forEach(function (listener) { - // TODO: filter on event target! - listener(event); - }); - }; - me.emitters[event] = callback; - - if (!me.hammer) { - me.hammer = Hammer(frame, { - prevent_default: true - }); - } - me.hammer.on(event, callback); - } - } - }); - - // TODO: be able to delete event listeners - // TODO: be able to move event listeners to a parent when available - } -}; - -/** - * 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); - } -}; - -/** - * 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; - } - - 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.listeners = []; - this.customTime = new Date(); -} - -CustomTime.prototype = new Component(); - -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, - 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('showCustomTime')) { - if (bar) { - parentContainer.removeChild(bar); - delete this.frame; - } - - return; - } - - 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; - - this.subscribe(this, 'movetime'); - } - - 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()); -}; - -/** - * Add listeners for mouse and touch events to the component - * @param {Component} component - */ -CustomTime.prototype.subscribe = function (component, event) { - var me = this; - var listener = { - component: component, - event: event, - callback: function (event) { - me._onMouseDown(event, listener); - }, - params: {} - }; - - component.on('mousedown', listener.callback); - me.listeners.push(listener); - -}; - -/** - * Event handler - * @param {String} event name of the event, for example 'click', 'mousemove' - * @param {function} callback callback handler, invoked with the raw HTML Event - * as parameter. - */ -CustomTime.prototype.on = function (event, callback) { - var bar = this.frame; - if (!bar) { - throw new Error('Cannot add event listener: no parent attached'); - } - - events.addListener(this, event, callback); - util.addEventListener(bar, event, callback); -}; - -/** - * Start moving horizontally - * @param {Event} event - * @param {Object} listener Listener containing the component and params - * @private - */ -CustomTime.prototype._onMouseDown = function(event, listener) { - event = event || window.event; - var params = listener.params; - - // only react on left mouse button down - var leftButtonDown = event.which ? (event.which == 1) : (event.button == 1); - if (!leftButtonDown) { - return; - } - - // get mouse position - params.mouseX = util.getPageX(event); - params.moved = false; - - params.customTime = this.customTime; - - // add event listeners to handle moving the custom time bar - var me = this; - if (!params.onMouseMove) { - params.onMouseMove = function (event) { - me._onMouseMove(event, listener); - }; - util.addEventListener(document, 'mousemove', params.onMouseMove); - } - if (!params.onMouseUp) { - params.onMouseUp = function (event) { - me._onMouseUp(event, listener); - }; - util.addEventListener(document, 'mouseup', params.onMouseUp); - } - - util.stopPropagation(event); - util.preventDefault(event); -}; - -/** - * Perform moving operating. - * This function activated from within the funcion CustomTime._onMouseDown(). - * @param {Event} event - * @param {Object} listener - * @private - */ -CustomTime.prototype._onMouseMove = function (event, listener) { - event = event || window.event; - var params = listener.params; - var parent = this.parent; - - // calculate change in mouse position - var mouseX = util.getPageX(event); - - if (params.mouseX === undefined) { - params.mouseX = mouseX; - } - - var diff = mouseX - params.mouseX; - - // if mouse movement is big enough, register it as a "moved" event - if (Math.abs(diff) >= 1) { - params.moved = true; - } - - var x = parent.toScreen(params.customTime); - var xnew = x + diff; - var time = parent.toTime(xnew); - this._setCustomTime(time); - - // fire a timechange event - events.trigger(this, 'timechange', {customTime: this.customTime}); - - util.preventDefault(event); -}; - -/** - * Stop moving operating. - * This function activated from within the function CustomTime._onMouseDown(). - * @param {event} event - * @param {Object} listener - * @private - */ -CustomTime.prototype._onMouseUp = function (event, listener) { - event = event || window.event; - var params = listener.params; - - // remove event listeners here, important for Safari - if (params.onMouseMove) { - util.removeEventListener(document, 'mousemove', params.onMouseMove); - params.onMouseMove = null; - } - if (params.onMouseUp) { - util.removeEventListener(document, 'mouseup', params.onMouseUp); - params.onMouseUp = null; - } - - if (params.moved) { - // fire a timechanged event - events.trigger(this, 'timechanged', {customTime: this.customTime}); - } -}; - -/** - * 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; - - // 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} - - 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; - - // 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. - */ -ItemSet.prototype.setOptions = Component.prototype.setOptions; - -/** - * 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(); - } - } - - // trigger a select event - selection = this.selection.concat([]); - events.trigger(this, 'select', { - ids: selection - }); - - 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'; - - 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.subscribe(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; -}; - -/** - * 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; -}; - -/** - * @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; -} - -/** - * 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; -}; - -/** - * Return the items width - * @return {Integer} width - */ -Item.prototype.getWidth = function getWidth() { - return this.width; -} - -/** - * @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; - } - - // 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); - 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; - } - - // 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); - - 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; - } - - // 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); - end = parent.toScreen(this.data.end); - 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'; - } -}; - -/** - * @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 - } - }; - - 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.data.id); - } - changed = true; - } - - // update class - var className = this.data.className ? (' ' + this.data.className) : ''; - if (this.className != className) { - this.className = className; - dom.box.className = 'item rangeoverflow' + className; - changed = true; - } - } - - return changed; -}; - -/** - * Return the items width - * @return {Number} width - */ -ItemRangeOverflow.prototype.getWidth = function getWidth() { - if (this.props.content !== undefined && this.width < this.props.content.width) - return this.props.content.width; - else - return this.width; -}; - -/** - * @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.subscribe(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'; - 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 = 'label'; - 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(); - } -}; - -/** - * Create a timeline visualization - * @param {HTMLElement} container - * @param {vis.DataSet | Array | 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', - 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, - autoResize: false - }; - - // 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); - - // 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() - ); - - // TODO: reckon with options moveable and zoomable - // TODO: put the listeners in setOptions, be able to dynamically change with options moveable and zoomable - this.range.subscribe(this.rootPanel, 'move', 'horizontal'); - this.range.subscribe(this.rootPanel, 'zoom', 'horizontal'); - this.range.on('rangechange', function (properties) { - var force = true; - me.controller.requestReflow(force); - me._trigger('rangechange', properties); - }); - this.range.on('rangechanged', function (properties) { - var force = true; - me.controller.requestReflow(force); - me._trigger('rangechanged', properties); - }); - - // single select (or unselect) when tapping an item - // TODO: implement ctrl+click - this.rootPanel.on('tap', this._onSelectItem.bind(this)); - - // multi select when holding mouse/touch, or on ctrl+click - this.rootPanel.on('hold', this._onMultiSelectItem.bind(this)); - - // 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); - - // 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); - } -} - -/** - * 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); - - this.controller.reflow(); - this.controller.repaint(); -}; - -/** - * Set a custom time bar - * @param {Date} time - */ -Timeline.prototype.setCustomTime = function (time) { - this.customtime._setCustomTime(time); -}; - -/** - * Retrieve the current custom time. - * @return {Date} customTime - */ -Timeline.prototype.getCustomTime = function() { - return new Date(this.customtime.customTime.valueOf()); -}; - -/** - * Set items - * @param {vis.DataSet | Array | DataTable | null} items - */ -Timeline.prototype.setItems = function(items) { - var initialLoad = (this.itemsData == null); - - // convert to type DataSet when needed - var newItemSet; - if (!items) { - newItemSet = null; - } - else if (items instanceof DataSet) { - newItemSet = items; - } - if (!(items instanceof DataSet)) { - newItemSet = new DataSet({ - convert: { - start: 'Date', - end: 'Date' - } - }); - newItemSet.add(items); - } - - // set items - this.itemsData = newItemSet; - this.content.setItems(newItemSet); - - 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 | 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() : []; -}; - -/** - * Add event listener - * @param {String} event Event name. Available events: - * 'rangechange', 'rangechanged', 'select' - * @param {function} callback Callback function, invoked as callback(properties) - * where properties is an optional object containing - * event specific properties. - */ -Timeline.prototype.on = function on (event, callback) { - var available = ['rangechange', 'rangechanged', 'select']; - - if (available.indexOf(event) == -1) { - throw new Error('Unknown event "' + event + '". Choose from ' + available.join()); - } - - events.addListener(this, event, callback); -}; - -/** - * Remove an event listener - * @param {String} event Event name - * @param {function} callback Callback function - */ -Timeline.prototype.off = function off (event, callback) { - events.removeListener(this, event, callback); -}; - -/** - * Trigger an event - * @param {String} event Event name, available events: 'rangechange', - * 'rangechanged', 'select' - * @param {Object} [properties] Event specific properties - * @private - */ -Timeline.prototype._trigger = function _trigger(event, properties) { - events.trigger(this, event, properties || {}); -}; - -/** - * Handle selecting/deselecting an item when tapping it - * @param {Event} event - * @private - */ -Timeline.prototype._onSelectItem = function (event) { - var item = this._itemFromTarget(event); - - var selection = item ? [item.id] : []; - this.setSelection(selection); - - this._trigger('select', { - items: this.getSelection() - }); - - event.stopPropagation(); -}; - -/** - * Handle selecting/deselecting multiple items when holding an item - * @param {Event} event - * @private - */ -Timeline.prototype._onMultiSelectItem = function (event) { - var selection, - item = this._itemFromTarget(event); - - if (!item) { - // do nothing... - return; - } - - 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._trigger('select', { - items: this.getSelection() - }); - - 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 - * @private - */ -Timeline.prototype._itemFromTarget = function _itemFromTarget (event) { - var target = event.target; - while (target) { - if (target.hasOwnProperty('timeline-item')) { - return target['timeline-item']; - } - target = target.parentNode; - } - - return null; -}; -(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.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.imagelist = imagelist; - - this.grouplist = grouplist; - - 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; - - // mass, force, velocity - this.mass = 1; // kg - 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 = 0.9; // this is manipulated in the updateDamping function - - this.graphScaleInv = 1; - this.canvasTopLeft = {"x": -300, "y": -300}; - this.canvasBottomRight = {"x": 300, "y": 300}; -} - -/** - * (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; -// this._updateMass(); -}; - -/** - * 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; -// this._updateMass(); -}; - -/** - * Update the nodes mass, which is determined by the number of edges connecting - * to it (more edges -> heavier node). - * @private - */ -//Node.prototype._updateMass = function() { -// this.mass = 1;// + 0.6 * this.edges.length; // kg -//}; - -/** - * 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;} - - // 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.fixed); - this.yFixed = this.yFixed || (properties.y !== undefined && properties.fixed); - 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)) { - c = { - border: color, - background: color, - highlight: { - border: color, - background: color - } - }; - // TODO: automatically generate a nice highlight 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); - } - - //noinspection FallthroughInSwitchStatementJS - 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) { - - if (Math.abs(this.vx) > vmin || Math.abs(this.vy) > vmin) { -// console.log(vmin,this.vx,this.vy); - return true; - } - else { - this.vx = 0; this.vy = 0; - return false; - } - //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; - - if (this.width > 0 && this.height > 0) { - this.width += (this.clusterSize - 1) * this.clusterSizeWidthFactor; - this.height += (this.clusterSize - 1) * this.clusterSizeHeightFactor; - this.radius += (this.clusterSize - 1) * this.clusterSizeRadiusFactor; - } - } - -}; - -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 += (this.clusterSize - 1) * 0.5 * this.clusterSizeWidthFactor; - this.height += (this.clusterSize - 1) * 0.5 * this.clusterSizeHeightFactor; -// this.radius += (this.clusterSize - 1) * 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 += (this.clusterSize - 1) * this.clusterSizeWidthFactor; - this.height += (this.clusterSize - 1) * this.clusterSizeHeightFactor; - this.radius += (this.clusterSize - 1) * this.clusterSizeRadiusFactor; - } -}; - -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 += (this.clusterSize - 1) * 0.5 * this.clusterSizeWidthFactor; -// this.height += (this.clusterSize - 1) * 0.5 * this.clusterSizeHeightFactor; - this.radius += (this.clusterSize - 1) * 0.5 * this.clusterSizeRadiusFactor; - } -}; - -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; - } - - // scaling used for clustering - this.width += (this.clusterSize - 1) * this.clusterSizeWidthFactor; - this.height += (this.clusterSize - 1) * this.clusterSizeHeightFactor; - this.radius += (this.clusterSize - 1) * this.clusterSizeRadiusFactor; - } -}; - -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 += (this.clusterSize - 1) * this.clusterSizeWidthFactor; - this.height += (this.clusterSize - 1) * this.clusterSizeHeightFactor; - this.radius += (this.clusterSize - 1) * 0.5 * this.clusterSizeRadiusFactor; - } -}; - -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 += (this.clusterSize - 1) * this.clusterSizeWidthFactor; - this.height += (this.clusterSize - 1) * this.clusterSizeHeightFactor; - this.radius += (this.clusterSize - 1) * this.clusterSizeRadiusFactor; - } -}; - -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) { - 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.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 function updates the damping parameter for clusters, based ont he - * - * @param {Number} numberOfNodes - */ -Node.prototype.updateDamping = function(numberOfNodes) { - this.damping = (0.9 + 0.1*this.clusterSize * (1 + Math.pow(numberOfNodes,-2))); -}; - - -/** - * 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); - energyBefore = this.vy * this.vy * massBeforeClustering; - this.vy = (this.vy < 0) ? -Math.sqrt(energyBefore/this.mass) : 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.from = null; // a node - this.to = null; // a 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.springConstant = constants.physics.springConstant; - 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 = Edge._dist(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) { - // 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); - 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(); - - // 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); - - // draw an arrow halfway the line - 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? - 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 = 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); - - // 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(); - - // draw line - var angle, length; - if (this.from != this.to) { - // calculate length and angle of the line - 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 lEdge = Math.sqrt(dx * dx + dy * dy); - - var lFrom = this.from.distanceToBorder(ctx, angle + Math.PI); - var pFrom = (lEdge - lFrom) / lEdge; - var xFrom = (pFrom) * this.from.x + (1 - pFrom) * this.to.x; - var yFrom = (pFrom) * this.from.y + (1 - pFrom) * this.to.y; - - var lTo = this.to.distanceToBorder(ctx, angle); - var pTo = (lEdge - lTo) / lEdge; - var xTo = (1 - pTo) * this.from.x + pTo * this.to.x; - var yTo = (1 - pTo) * this.from.y + pTo * this.to.y; - - ctx.beginPath(); - ctx.moveTo(xFrom, yFrom); - ctx.lineTo(xTo, yTo); - ctx.stroke(); - - // draw arrow at the end of the line - length = 10 + 5 * this.width; // TODO: make customizable? - 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 = this.length / 4; - if (!node.width) { - node.resize(ctx); - } - if (node.width > node.height) { - x = node.x + node.width / 2; - 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 / 2; - arrow = { - x: node.x, - y: y, - angle: 0.6 * Math.PI - }; - } - ctx.beginPath(); - // TODO: do not draw a circle, but an arc - // 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._dist = function (x1,y1, x2,y2, x3,y3) { // x3,y3 is the point - 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; -} -/** - * 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 = { - - /** - * 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(useBarnesHut) { - // 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); - } - - this._calculateForcesRepulsion(); - -// // we now start the force calculation -// if (useBarnesHut == true) { -// this._calculateForcesBarnesHut(); -// } -// else { -// this._calculateForcesRepulsion(); -// } - } - }, - - - /** - * Calculate the external forces acting on the nodes - * Forces are caused by: edges, repulsing forces between nodes, gravity - * @private - */ - _calculateForcesRepulsion : 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 - -// var startTimeAll = Date.now(); - - this._applyCentralGravity(); - -// var startTimeRepulsion = Date.now(); - // All nodes repel eachother. - this._applyNodeRepulsion(); - -// var endTimeRepulsion = Date.now(); - - // the edges are strings - this._applySpringForces(); - -// var endTimeAll = Date.now(); - -// echo("Time repulsion part:", endTimeRepulsion - startTimeRepulsion); -// echo("Time total force calc:", endTimeAll - startTimeAll); - }, - - /** - * Calculate the external forces acting on the nodes - * Forces are caused by: edges, repulsing forces between nodes, gravity - * @private - */ - _calculateForcesBarnesHut : 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 - -// var startTimeAll = Date.now(); - - this._applyCentralGravity(); - -// var startTimeRepulsion = Date.now(); - // All nodes repel eachother. - this._calculateBarnesHutForces(); - -// var endTimeRepulsion = Date.now(); - - // the edges are strings - this._applySpringForces(); - -// var endTimeAll = Date.now(); - -// echo("Time repulsion part:", endTimeRepulsion - startTimeRepulsion); -// echo("Time total force calc:", endTimeAll - startTimeAll); - }, - - - _clearForces : function() { - var node; - var nodes = this.nodes; - - for (var i = 0; i < this.nodeIndices.length; i++) { - node = nodes[this.nodeIndices[i]]; - node._setForce(0, 0); - node.updateDamping(this.nodeIndices.length); - } - }, - - _applyCentralGravity : function() { - var dx, dy, angle, fx, fy, node, i; - var nodes = this.nodes; - var gravity = this.constants.physics.centralGravity; - - for (i = 0; i < this.nodeIndices.length; i++) { - node = nodes[this.nodeIndices[i]]; - // gravity does not apply when we are in a pocket sector - if (this._sector() == "default") { - dx = -node.x;// + screenCenterPos.x; - dy = -node.y;// + screenCenterPos.y; - - angle = Math.atan2(dy, dx); - fx = Math.cos(angle) * gravity; - fy = Math.sin(angle) * gravity; - } - else { - fx = 0; - fy = 0; - } - node._setForce(fx, fy); - node.updateDamping(this.nodeIndices.length); - } - }, - - _applyNodeRepulsion : function() { - var dx, dy, angle, distance, fx, fy, clusterSize, - repulsingForce, node1, node2, i, j; - var nodes = this.nodes; - - // approximation constants - var a_base = -2/3; - var b = 4/3; - - // repulsing forces between nodes - var minimumDistance = this.constants.nodes.distance; - //var steepness = 10; - - // 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 < this.nodeIndices.length-1; i++) { - node1 = nodes[this.nodeIndices[i]]; - for (j = i+1; j < this.nodeIndices.length; j++) { - node2 = nodes[this.nodeIndices[j]]; - clusterSize = (node1.clusterSize + node2.clusterSize - 2); - dx = node2.x - node1.x; - dy = node2.y - node1.y; - distance = Math.sqrt(dx * dx + dy * dy); - - - // clusters have a larger region of influence - minimumDistance = (clusterSize == 0) ? this.constants.nodes.distance : (this.constants.nodes.distance * (1 + clusterSize * this.constants.clustering.distanceAmplification)); - var a = a_base / minimumDistance; - if (distance < 2*minimumDistance) { // at 2.0 * the minimum distance, the force is 0.000045 - angle = Math.atan2(dy, dx); - - if (distance < 0.5*minimumDistance) { // at 0.5 * the minimum distance, the force is 0.993307 - 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 *= (clusterSize == 0) ? 1 : 1 + clusterSize * this.constants.clustering.forceAmplification; - - fx = Math.cos(angle) * repulsingForce; - fy = Math.sin(angle) * repulsingForce ; - - node1._addForce(-fx, -fy); - node2._addForce(fx, fy); - } - } - } - }, - - _applySpringForces : function() { - var dx, dy, angle, fx, fy, springForce, length, edgeLength, edge, edgeId, clusterSize; - 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)) { - clusterSize = (edge.to.clusterSize + edge.from.clusterSize - 2); - dx = (edge.to.x - edge.from.x); - dy = (edge.to.y - edge.from.y); - - edgeLength = edge.length; - - // this implies that the edges between big clusters are longer - edgeLength += clusterSize * this.constants.clustering.edgeGrowth; - length = Math.sqrt(dx * dx + dy * dy); - angle = Math.atan2(dy, dx); - - springForce = edge.springConstant * (edgeLength - length); - - fx = Math.cos(angle) * springForce; - fy = Math.sin(angle) * springForce; - //console.log(edge.length,dx,dy,edge.springConstant,angle) - edge.from._addForce(-fx, -fy); - edge.to._addForce(fx, fy); - } - } - } - } - }, - - _calculateBarnesHutForces : function() { - this._formBarnesHutTree(); - - var nodes = this.nodes; - var nodeIndices = this.nodeIndices; - var node; - var nodeCount = nodeIndices.length; - - 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); - } - }, - - _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); - - if (distance > 0) { // distance is 0 if it looks to apply a force on itself. - // we invert it here because we need the inverted distance for the force calculation too. - var distanceInv = 1/distance; - - // BarnesHut condition - if (parentBranch.size * distanceInv > this.constants.physics.barnesHutTheta) { - // 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 - this._getForceOnNode(parentBranch, node, dx ,dy, distanceInv); - } - } - } - else { - this._getForceOnNode(parentBranch, node, dx ,dy, distanceInv); - } - } - } - }, - - _getForceOnNode : function(parentBranch, node, dx ,dy, distanceInv) { - // even if the parentBranch only has one node, its Center of Mass is at the right place (the node in this case). - var gravityForce = this.constants.physics.nodeGravityConstant * parentBranch.mass * node.mass * distanceInv * distanceInv; - var angle = Math.atan2(dy, dx); - var fx = Math.cos(angle) * gravityForce; - var fy = Math.sin(angle) * gravityForce; - node._addForce(fx, fy); - }, - - - _formBarnesHutTree : function() { - var nodes = this.nodes; - var nodeIndices = this.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 - - - // construct the barnesHutTree - var barnesHutTree = {root:{ - CenterOfMass:{x:0,y:0}, // Center of Mass - mass:0, - range:{minX:minX,maxX:maxX,minY:minY,maxY:maxY}, - size: Math.abs(maxX - minX), - children: {data:null}, - 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; - }, - - _placeInTree : function(parentBranch,node) { - // 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.NE.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 - this._splitBranch(parentBranch.children[region]); - this._placeInTree(parentBranch.children[region],node); - break; - case 4: // place in branch - this._placeInTree(parentBranch.children[region],node); - break; - } - }, - - _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; - switch (region) { - case "NW": - minX = parentBranch.range.minX; - maxX = parentBranch.range.minX + parentBranch.size; - minY = parentBranch.range.minY; - maxY = parentBranch.range.minY + parentBranch.size; - break; - case "NE": - minX = parentBranch.range.minX + parentBranch.size; - maxX = parentBranch.range.maxX; - minY = parentBranch.range.minY; - maxY = parentBranch.range.minY + parentBranch.size; - break; - case "SW": - minX = parentBranch.range.minX; - maxX = parentBranch.range.minX + parentBranch.size; - minY = parentBranch.range.minY + parentBranch.size; - maxY = parentBranch.range.maxY; - break; - case "SE": - minX = parentBranch.range.minX + parentBranch.size; - maxX = parentBranch.range.maxX; - minY = parentBranch.range.minY + parentBranch.size; - 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, - children: {data:null}, - level: parentBranch.level +1, - childrenCount: 0 - }; - }, - - _drawTree : function(ctx,color) { - if (this.barnesHutTree !== undefined) { - - ctx.lineWidth = 1; - - this._drawBranch(this.barnesHutTree.root,ctx,color); - } - }, - - _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 2/4/14. - */ - -var manipulationMixin = { - - /** - * clears the toolbar div element of children - * - * @private - */ - _clearManipulatorBar : function() { - while (this.manipulationDiv.hasChildNodes()) { - this.manipulationDiv.removeChild(this.manipulationDiv.firstChild); - } - }, - - - /** - * 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); - - // reset global variables - this.blockConnectingEdgeSelection = false; - this.forceAppendSelection = false - - while (this.manipulationDiv.hasChildNodes()) { - this.manipulationDiv.removeChild(this.manipulationDiv.firstChild); - } - // add the icons to the manipulator div - this.manipulationDiv.innerHTML = "" + - "Add Node" + - "
" + - "Edit Selected" + - "
" + - "Connect Node" + - "
" + - "Delete selected"; - - // bind the icons - var addButton = document.getElementById("manipulate-addNode"); - addButton.onclick = this._createAddToolbar.bind(this); - var editButton = document.getElementById("manipulate-editNode"); - editButton.onclick = this._createEditToolbar.bind(this); - var connectButton = document.getElementById("manipulate-connectNode"); - connectButton.onclick = this._createConnectToolbar.bind(this); - var deleteButton = document.getElementById("manipulate-delete"); - deleteButton.onclick = this._createDeletionToolbar.bind(this); - }, - - - /** - * Create the toolbar for adding Nodes - * - * @private - */ - _createAddToolbar : 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("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 edit nodes or edges. - * TODO: edges not implemented yet, unsure what to edit. - * - * @private - */ - _createEditToolbar : function() { - // clear the toolbar - this.blockConnectingEdgeSelection = false; - this._clearManipulatorBar(); - this.off('select', this.boundFunction); - - - var message = ""; - if (this._selectionIsEmpty()) { - message = "Select a node or edge to edit."; - } - else { - if (this._getSelectedObjectCount() > 1) { - message = "Select a single node or edge to edit." - this._unselectAll(true); - } - else { - if (this._clusterInSelection()) { - message = "You cannot edit a cluster." - this._unselectAll(true); - } - else { - if (this._getSelectedNodeCount() > 0) { // the selected item is a node - this._createEditNodeToolbar(); - } - else { // the selected item is an edge - this._createEditEdgeToolbar(); - } - } - } - } - - if (message != "") { - this.blockConnectingEdgeSelection = true; - // create the toolbar contents - this.manipulationDiv.innerHTML = "" + - "Back" + - "
" + - ""+message+""; - - // bind the icon - var backButton = document.getElementById("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._createEditToolbar.bind(this); - this.on('select', this.boundFunction); - } - }, - - - /** - * Create the toolbar to edit the selected node. The label and the color can be changed. Other colors are derived from the chosen color. - * TODO: change shape or group? - * - * @private - */ - _createEditNodeToolbar : function() { - // clear the toolbar - this.blockConnectingEdgeSelection = false; - this._clearManipulatorBar(); - this.off('select', this.boundFunction); - - var editObject = this._getEditObject(); - - // create the toolbar contents - this.manipulationDiv.innerHTML = "" + - "Cancel" + - "
" + - "label: " + - "
" + - "color: " + - "
" + - "" - - // bind the icon - var backButton = document.getElementById("manipulate-back"); - backButton.onclick = this._createManipulatorBar.bind(this); - var saveButton = document.getElementById("manipulator-obj-save"); - saveButton.onclick = this._saveNodeData.bind(this); - - // we use the boundFunction so we can reference it when we unbind it from the "select" event. - this.boundFunction = this._createManipulatorBar.bind(this); - this.on('select', this.boundFunction); - }, - - - /** - * save the changes in the node data - * - * @private - */ - _saveNodeData : function() { - var editObjectId = this._getEditObject().id; - var label = document.getElementById('manipulator-obj-label').value; - - var definedColor = document.getElementById('manipulator-obj-color').value; - var hsv = util.hexToHSV(definedColor); - - 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); - - var updatedSettings = {id:editObjectId, - label: label, - color: { - background:definedColor, - border:darkerColorHex, - highlight: { - background:lighterColorHex, - border:darkerColorHex - } - }}; - this.nodesData.update(updatedSettings); - this._createManipulatorBar(); - }, - - - /** - * creating the toolbar to edit edges. - * - * @private - */ - _createEditEdgeToolbar : function() { - // clear the toolbar - this.blockConnectingEdgeSelection = false; - this._clearManipulatorBar(); - this.off('select', this.boundFunction); - - // create the toolbar contents - this.manipulationDiv.innerHTML = "" + - "Back" + - "
" + - "Currently only nodes can be edited."; - - // bind the icon - var backButton = document.getElementById("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._createManipulatorBar.bind(this); - this.on('select', this.boundFunction); - }, - - - /** - * create the toolbar to connect nodes - * - * @private - */ - _createConnectToolbar : function() { - // clear the toolbar - this._clearManipulatorBar(); - this.off('select', this.boundFunction); - - this._unselectAll(); - this.forceAppendSelection = false; - this.blockConnectingEdgeSelection = true; - - this.manipulationDiv.innerHTML = "" + - "Back" + - "
" + - "Select the node you want to connect to other nodes."; - - // bind the icon - var backButton = document.getElementById("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); - }, - - - /** - * create the toolbar for deleting selected objects. User has to be sure. - * - * @private - */ - _createDeletionToolbar : function() { - // clear the toolbar - this._clearManipulatorBar(); - this.off('select', this.boundFunction); - - if (this._selectionIsEmpty()) { - this.manipulationDiv.innerHTML = "" + - "Cannot delete an empty selection."; - var graph = this; - window.setTimeout (function() {graph._createManipulatorBar()},1500); - } - else { - this.manipulationDiv.innerHTML = "" + - "Back" + - "
" + - "Are you sure? This cannot be undone." + - "
" + - "Yes."; - - // bind the buttons - var backButton = document.getElementById("manipulate-back"); - backButton.onclick = this._createManipulatorBar.bind(this); - var acceptDeleteButton = document.getElementById("manipulate-acceptDelete"); - acceptDeleteButton.onclick = this._deleteSelected.bind(this); - - // we use the boundFunction so we can reference it when we unbind it from the "select" event. - this.boundFunction = this._createManipulatorBar.bind(this); - this.on('select', this.boundFunction); - } - }, - - - /** - * 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() { - this.forceAppendSelection = false; - if (this._clusterInSelection()) { - this._unselectClusters(true); - if (!this._selectionIsEmpty()) { - this._setManipulationMessage("You cannot connect a node to a cluster."); - this.forceAppendSelection = true; - } - else { - this._setManipulationMessage("You cannot connect anything to a cluster."); - } - } - else if (!this._selectionIsEmpty()) { - if (this._getSelectedNodeCount() == 2) { - this._connectNodes(); - this._restoreSourceNode(); - this._setManipulationMessage("Click on another node you want to connect this node to or go back."); - } - else { - this._setManipulationMessage("Click on the node you want to connect this node."); - this._setSourceNode(); - this.forceAppendSelection = true; - } - } - else { - this._setManipulationMessage("Select the node you want to connect to other nodes."); - } - }, - - - /** - * returns the object that is selected - * - * @returns {*} - * @private - */ - _getEditObject : function() { - for(var objectId in this.selectionObj) { - if(this.selectionObj.hasOwnProperty(objectId)) { - return this.selectionObj[objectId]; - } - } - return null; - }, - - - /** - * stores the first selected node for the connecting process as the source node. This allows us to remember the direction - * - * @private - */ - _setSourceNode : function() { - for(var objectId in this.selectionObj) { - if(this.selectionObj.hasOwnProperty(objectId)) { - if (this.selectionObj[objectId] instanceof Node) { - this.manipulationSourceNode = this.selectionObj[objectId]; - } - } - } - }, - - - /** - * gets the node the source connects to. - * - * @returns {*} - * @private - */ - _getTargetNode : function() { - for(var objectId in this.selectionObj) { - if(this.selectionObj.hasOwnProperty(objectId)) { - if (this.selectionObj[objectId] instanceof Node) { - if (this.manipulationSourceNode.id != this.selectionObj[objectId].id) { - return this.selectionObj[objectId]; - } - } - } - } - return null; - }, - - - /** - * restore the selection back to only the sourcenode - * - * @private - */ - _restoreSourceNode : function() { - this._unselectAll(true); - this._selectObject(this.manipulationSourceNode); - }, - - - /** - * change the description message on the toolbar - * - * @param message - * @private - */ - _setManipulationMessage : function(message) { - var messageSpan = document.getElementById('manipulatorLabel'); - messageSpan.innerHTML = message; - }, - - - /** - * Adds a node on the specified location - * - * @param {Object} pointer - */ - _addNode : function() { - if (this._selectionIsEmpty()) { - var positionObject = this._pointerToPositionObject(this.pointerPosition); - this.createNodeOnClick = true; - this.nodesData.add({id:util.randomUUID(),x:positionObject.left,y:positionObject.top,label:"new",fixed:false}); - this.createNodeOnClick = false; - this.moving = true; - this.start(); - } - }, - - - /** - * connect two nodes with a new edge. - * - * @private - */ - _connectNodes : function() { - var targetNode = this._getTargetNode(); - var sourceNode = this.manipulationSourceNode; - this.edgesData.add({from:sourceNode.id, to:targetNode.id}) - this.moving = true; - this.start(); - }, - - - /** - * delete everything in the selection - * TODO : place the alert in the gui. - * - * - * @private - */ - _deleteSelected : function() { - if (!this._clusterInSelection()) { - var selectedNodes = this.getSelectedNodes(); - var selectedEdges = this.getSelectedEdges(); - this._removeEdges(selectedEdges); - this._removeNodes(selectedNodes); - 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 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 to - * those of the navigation controls sector. - * - * @private - */ - _switchToNavigationSector : function() { - this.nodeIndices = this.sectors["navigation"]["nodeIndices"]; - this.nodes = this.sectors["navigation"]["nodes"]; - this.edges = this.sectors["navigation"]["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(); - } - } - }, - - - /** - * 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 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 the navigation controls sector. - * - * @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 - */ - _doInNavigationSector : function(runFunction,argument) { - this._switchToNavigationSector(); - if (argument === undefined) { - this[runFunction](); - } - else { - 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(); - } - else { - this.increaseClusterLevel(); - } - numberOfNodes = this.nodeIndices.length; - level += 1; - } - - // after the clustering we reposition the nodes to reduce the initial chaos - if (level > 1 && reposition == true) { - this.repositionNodes(); - } - }, - - /** - * 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._addSector(node); - var level = 0; - 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.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) { - 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 the simulation was settled, we restart the simulation if a cluster has been formed or expanded - if (this.moving != isMovingBeforeClustering) { - this.start(); - } - }, - - /** - * 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() { - 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 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 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) { - // remove the selection, first remove the selection from the connected edges - this._unselectConnectedEdges(parentNode); - parentNode.unselect(); - - // 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 -= this.constants.clustering.massTransferCoefficient * childNode.mass; - parentNode.fontSize -= this.constants.clustering.fontSizeMultiplier * childNode.clusterSize; - parentNode.clusterSize -= childNode.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 + this.constants.physics.springLength * (0.1 * (0.5 - Math.random()) * parentNode.clusterSize); - childNode.y = parentNode.y + this.constants.physics.springLength * (0.1 * (0.5 - Math.random()) * parentNode.clusterSize); - console.log(childNode.x,childNode.y,parentNode.x,parentNode.y); - // 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(); - } - - // remove the clusterSession from the child node - childNode.clusterSession = 0; - - // restart the simulation to reorganise all nodes - this.moving = true; - - // recalculate the size of the node on the next time the node is rendered - parentNode.clearSizeCache(); - - // this unselects the rest of the edges - this._unselectConnectedEdges(parentNode); - } - - // check if a further expansion step is possible if recursivity is enabled - if (recursive == true) { - this._expandClusterNode(childNode,recursive,force,openAll); - } - }, - - - /** - * 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); - } - } - } - } - } - }, - - - - /** - * 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 += this.constants.clustering.fontSizeMultiplier * childNode.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); - } - }, - - - _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(Math.round(node.width)).concat(":",Math.round(node.width*this.scale)); - // } - // } - - }, - - - /** - * 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.isFixed()) { - var radius = this.constants.physics.springLength * (1 + 0.6*node.clusterSize); - var angle = 2 * Math.PI * Math.random(); - node.x = radius * Math.cos(angle); - node.y = radius * Math.sin(angle); - } - } - }, - - - - - - /** - * 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; - }, - - - /** - * retrieve all nodes in the navigation controls 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 - */ - _getAllNavigationNodesOverlappingWith : function (object) { - var overlappingNodes = []; - this._doInNavigationSector("_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}; - }, - - /** - * Return a position object in canvasspace from a single point in screenspace - * - * @param pointer - * @returns {{left: number, top: number, right: number, bottom: number}} - * @private - */ - _pointerToScreenPositionObject : function(pointer) { - var x = pointer.x; - var y = pointer.y; - - return {left: x, - top: y, - right: x, - bottom: y}; - }, - - - /** - * Get the top navigation controls node at the a specific point (like a click) - * - * @param {{x: Number, y: Number}} pointer - * @return {Node | null} node - * @private - */ - _getNavigationNodeAt : function (pointer) { - var screenPositionObject = this._pointerToScreenPositionObject(pointer); - var overlappingNodes = this._getAllNavigationNodesOverlappingWith(screenPositionObject); - if (overlappingNodes.length > 0) { - return this.sectors["navigation"]["nodes"][overlappingNodes[overlappingNodes.length - 1]]; - } - else { - return null; - } - }, - - - /** - * 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._trigger('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._trigger('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 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._trigger('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) { - if (this.constants.navigation.enabled == true) { - this.pointerPosition = pointer; - var node = this._getNavigationNodeAt(pointer); - if (node != null) { - if (this[node.triggerFunction] !== undefined) { - this[node.triggerFunction](); - } - } - } - }, - - - /** - * 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() { - this.xIncrement = 0; - this.yIncrement = 0; - this.zoomIncrement = 0; - this._unHighlightAll(); - }, - - - - /** - * - * 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]; - } - } - } - } - } - -} -/** - * select all nodes on given location x, y - * @param {Array} selection an array with node ids - * @param {boolean} append If true, the new selection will be appended to the - * current selection (except for duplicate entries) - * @return {Boolean} changed True if the selection is changed - * @private - */ -/* _selectNodes : function(selection, append) { - var changed = false; - var i, iMax; - - // TODO: the selectNodes method is a little messy, rework this - - // check if the current selection equals the desired selection - var selectionAlreadyThere = true; - if (selection.length != this.selection.length) { - selectionAlreadyThere = false; - } - else { - for (i = 0, iMax = Math.min(selection.length, this.selection.length); i < iMax; i++) { - if (selection[i] != this.selection[i]) { - selectionAlreadyThere = false; - break; ->>>>>>> develop - } - } - } - } - - -<<<<<<< HEAD -======= - if (changed) { - // fire the select event - this._trigger('select', { - nodes: this.getSelection() - }); - } ->>>>>>> develop - -}; - - - - -/** - * Created by Alex on 1/22/14. - */ - -var NavigationMixin = { - - /** - * This function moves the navigation controls if the canvas size has been changed. If the arugments - * verticaAlignTop and horizontalAlignLeft are false, the correction will be made - * - * @private - */ - _relocateNavigation : function() { - if (this.sectors !== undefined) { - var xOffset = this.navigationClientWidth - this.frame.canvas.clientWidth; - var yOffset = this.navigationClientHeight - this.frame.canvas.clientHeight; - this.navigationClientWidth = this.frame.canvas.clientWidth; - this.navigationClientHeight = this.frame.canvas.clientHeight; - var node = null; - - for (var nodeId in this.sectors["navigation"]["nodes"]) { - if (this.sectors["navigation"]["nodes"].hasOwnProperty(nodeId)) { - node = this.sectors["navigation"]["nodes"][nodeId]; - if (!node.horizontalAlignLeft) { - node.x -= xOffset; - } - if (!node.verticalAlignTop) { - node.y -= yOffset; - } - } - } - } - }, - - - /** - * 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() { - var DIR = this.constants.navigation.iconPath; - this.navigationClientWidth = this.frame.canvas.clientWidth; - this.navigationClientHeight = this.frame.canvas.clientHeight; - if (this.navigationClientWidth === undefined) { - this.navigationClientWidth = 0; - this.navigationClientHeight = 0; - } - var offset = 15; - var intermediateOffset = 7; - var navigationNodes = [ - {id: 'navigation_up', shape: 'image', image: DIR + '/uparrow.png', triggerFunction: "_moveUp", - verticalAlignTop: false, x: 45 + offset + intermediateOffset, y: this.navigationClientHeight - 45 - offset - intermediateOffset}, - {id: 'navigation_down', shape: 'image', image: DIR + '/downarrow.png', triggerFunction: "_moveDown", - verticalAlignTop: false, x: 45 + offset + intermediateOffset, y: this.navigationClientHeight - 15 - offset}, - {id: 'navigation_left', shape: 'image', image: DIR + '/leftarrow.png', triggerFunction: "_moveLeft", - verticalAlignTop: false, x: 15 + offset, y: this.navigationClientHeight - 15 - offset}, - {id: 'navigation_right', shape: 'image', image: DIR + '/rightarrow.png',triggerFunction: "_moveRight", - verticalAlignTop: false, x: 75 + offset + 2 * intermediateOffset, y: this.navigationClientHeight - 15 - offset}, - - {id: 'navigation_plus', shape: 'image', image: DIR + '/plus.png', triggerFunction: "_zoomIn", - verticalAlignTop: false, horizontalAlignLeft: false, - x: this.navigationClientWidth - 45 - offset - intermediateOffset, y: this.navigationClientHeight - 15 - offset}, - {id: 'navigation_min', shape: 'image', image: DIR + '/minus.png', triggerFunction: "_zoomOut", - verticalAlignTop: false, horizontalAlignLeft: false, - x: this.navigationClientWidth - 15 - offset, y: this.navigationClientHeight - 15 - offset}, - {id: 'navigation_zoomExtends', shape: 'image', image: DIR + '/zoomExtends.png', triggerFunction: "zoomToFit", - verticalAlignTop: false, horizontalAlignLeft: false, - x: this.navigationClientWidth - 15 - offset, y: this.navigationClientHeight - 45 - offset - intermediateOffset} - ]; - - var nodeObj = null; - for (var i = 0; i < navigationNodes.length; i++) { - nodeObj = this.sectors["navigation"]['nodes']; - nodeObj[navigationNodes[i]['id']] = new Node(navigationNodes[i], this.images, this.groups, this.constants); - } - }, - - - /** - * By setting the clustersize to be larger than 1, we use the clustering drawing method - * to illustrate the buttons are presed. We call this highlighting. - * - * @param {String} elementId - * @private - */ - _highlightNavigationElement : function(elementId) { - if (this.sectors["navigation"]["nodes"].hasOwnProperty(elementId)) { - this.sectors["navigation"]["nodes"][elementId].clusterSize = 2; - } - }, - - - /** - * Reverting back to a normal button - * - * @param {String} elementId - * @private - */ - _unHighlightNavigationElement : function(elementId) { - if (this.sectors["navigation"]["nodes"].hasOwnProperty(elementId)) { - this.sectors["navigation"]["nodes"][elementId].clusterSize = 1; - } - }, - - /** - * un-highlight (for lack of a better term) all navigation controls elements - * @private - */ - _unHighlightAll : function() { - for (var nodeId in this.sectors['navigation']['nodes']) { - if (this.sectors['navigation']['nodes'].hasOwnProperty(nodeId)) { - this._unHighlightNavigationElement(nodeId); - } - } - }, - - - _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) { - this._highlightNavigationElement("navigation_up"); - 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._highlightNavigationElement("navigation_down"); - 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._highlightNavigationElement("navigation_left"); - 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._highlightNavigationElement("navigation_right"); - 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._highlightNavigationElement("navigation_plus"); - 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._highlightNavigationElement("navigation_min"); - 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._unHighlightNavigationElement("navigation_plus"); - this._unHighlightNavigationElement("navigation_min"); - - this.zoomIncrement = 0; - }, - - - /** - * Stop moving in the Y direction and unHighlight the up and down - * @private - */ - _yStopMoving : function() { - this._unHighlightNavigationElement("navigation_up"); - this._unHighlightNavigationElement("navigation_down"); - - this.yIncrement = 0; - }, - - - /** - * Stop moving in the X direction and unHighlight left and right. - * @private - */ - _xStopMoving : function() { - this._unHighlightNavigationElement("navigation_left"); - this._unHighlightNavigationElement("navigation_right"); - - this.xIncrement = 0; - } - - -}; - -/** - * @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) { - // create variables and set default values - this.containerElement = container; - this.width = '100%'; - this.height = '100%'; - // to give everything a nice fluidity, we seperate the rendering and calculating of the forces - this.renderRefreshRate = 60; // hz (fps) - this.renderTimestep = 1000 / this.renderRefreshRate; // ms -- saves calculation later on - this.stabilize = true; // stabilize before displaying the graph - this.selectable = true; - - // set constant values - this.constants = { - nodes: { - radiusMin: 5, - radiusMax: 20, - radius: 5, - distance: 100, // px - shape: 'ellipse', - image: undefined, - widthMin: 16, // px - widthMax: 64, // px - fontColor: 'black', - fontSize: 14, // px - //fontFace: verdana, - fontFace: 'arial', - 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: '#343434', - fontColor: '#343434', - fontSize: 14, // px - fontFace: 'arial', - //distance: 100, //px - length: 100, // px - dash: { - length: 10, - gap: 5, - altLength: undefined - } - }, - physics: { - springConstant:0.05, - springLength: 100, - centralGravity: 0.1, - nodeGravityConstant: -10000, - barnesHutTheta: 0.2 - }, - 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: 50, // (# 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). - forceAmplification: 0.6, // (multiplier PNiC) | factor of increase fo the repulsion force of a cluster (per node in cluster). - distanceAmplification: 0.2, // (multiplier PNiC) | factor how much the repulsion distance of a cluster increases (per node in cluster). - edgeGrowth: 11, // (px PNiC) | amount of clusterSize connected to the edge is multiplied with this and added to edgeLength. - nodeScaling: {width: 10, // (px PNiC) | growth of the width per node in cluster. - height: 10, // (px PNiC) | growth of the height per node in cluster. - radius: 10}, // (px PNiC) | growth of the radius per node in cluster. - activeAreaBoxSize: 100 // (px) | box area around the curser where clusters are popped open. - }, - navigation: { - enabled: false, - iconPath: this._getScriptPath() + '/img' - }, - keyboard: { - enabled: false, - speed: {x: 10, y: 10, zoom: 0.02} - }, - dataManipulationToolbar: { - enabled: false - }, - minVelocity: 0.2, // px/s - maxIterations: 1000 // maximum number of iteration to stabilize - }; - - // Node variables - this.groups = new Groups(); // object with groups - this.images = new Images(); // object with images - this.images.setOnloadCallback(function () { - graph._redraw(); - }); - - // navigation variables - this.xIncrement = 0; - this.yIncrement = 0; - this.zoomIncrement = 0; - - // 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(); - - // apply options - this.setOptions(options); - - // other vars - var graph = this; - this.freezeSimulation = false;// freeze the simulation - - 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 - - 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 - // TODO: create a counter to keep track on the number of nodes having values - // TODO: create a counter to keep track on the number of nodes currently moving - // TODO: create a counter to keep track on the number of edges having values - - 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 - var me = this; - this.nodesListeners = { - 'add': function (event, params) { - me._addNodes(params.items); - me.start(); - }, - 'update': function (event, params) { - me._updateNodes(params.items); - me.start(); - }, - 'remove': function (event, params) { - me._removeNodes(params.items); - me.start(); - } - }; - this.edgesListeners = { - 'add': function (event, params) { - me._addEdges(params.items); - me.start(); - }, - 'update': function (event, params) { - me._updateEdges(params.items); - me.start(); - }, - 'remove': function (event, params) { - me._removeEdges(params.items); - me.start(); - } - }; - - // properties of the data - this.moving = false; // True if any of the nodes have an undefined position - this.timer = undefined; - - // load data (the disable start variable will be the same as the enabled clustering) - this.setData(data,this.constants.clustering.enabled); - - // zoom so all data will fit on the screen - this.zoomToFit(true); - - // if clustering is disabled, the simulation will have started in the setData function - if (this.constants.clustering.enabled) { - this.startWithClustering(); - } -} - -/** - * 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 i = 0; i < this.nodeIndices.length; i++) { - node = this.nodes[this.nodeIndices[i]]; - 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) { - var center = {x: (0.5 * (range.maxX + range.minX)), - y: (0.5 * (range.maxY + range.minY))}; - return center; -}; - - -/** - * 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) { - if (initialZoom === undefined) { - initialZoom = false; - } - - var numberOfNodes = this.nodeIndices.length; - var range = this._getRange(); - - if (initialZoom == true) { - if (this.constants.clustering.enabled == true && - numberOfNodes >= this.constants.clustering.initialMaxNodes) { - var zoomLevel = 38.8467 / (numberOfNodes - 14.50184) + 0.0116; // this is obtained from fitting a dataset from 5 points with scale levels that looked good. - } - else { - var zoomLevel = 42.54117319 / (numberOfNodes + 39.31966387) + 0.1944405; // 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); - 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.moving = true; - this.start(); - } -}; - -/** - * Set options - * @param {Object} options - */ -Graph.prototype.setOptions = function (options) { - if (options) { - // 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.clustering) { - this.constants.clustering.enabled = true; - for (var 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 (var 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 (var 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.dataManipulationToolbar) { - this.constants.dataManipulationToolbar.enabled = true; - for (var prop in options.dataManipulationToolbar) { - if (options.dataManipulationToolbar.hasOwnProperty(prop)) { - this.constants.dataManipulationToolbar[prop] = options.dataManipulationToolbar[prop]; - } - } - } - else if (options.dataManipulationToolbar !== undefined) { - this.constants.dataManipulationToolbar.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.length !== undefined && - options.nodes && options.nodes.distance === undefined) { - this.constants.physics.springLength = options.edges.length; - this.constants.nodes.distance = options.edges.length * 1.25; - } - - 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); - } - } - } - } - - // load the navigation system. - this._loadNavigationControls(); - - // load the data manipulation system - this._loadManipulationSystem(); - - // 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(); -}; - -/** - * Add event listener - * @param {String} event Event name. Available events: - * 'select' - * @param {function} callback Callback function, invoked as callback(properties) - * where properties is an optional object containing - * event specific properties. - */ -Graph.prototype.on = function on (event, callback) { - var available = ['select']; - - if (available.indexOf(event) == -1) { - throw new Error('Unknown event "' + event + '". Choose from ' + available.join()); - } - - events.addListener(this, event, callback); -}; - -/** - * Remove an event listener - * @param {String} event Event name - * @param {function} callback Callback function - */ -Graph.prototype.off = function off (event, callback) { - events.removeListener(this, event, callback); -}; - -/** - * fire an event - * @param {String} event The name of an event, for example 'select' - * @param {Object} params Optional object with event parameters - * @private - */ -Graph.prototype._trigger = function (event, params) { - events.trigger(this, event, params); -}; - - -/** - * 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"); - } - this.mousetrap.bind("b",this._formBarnesHutTree.bind(me)); - - if (this.constants.dataManipulationToolbar.enabled == true) { - this.mousetrap.bind("escape",this._createManipulatorBar.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.touches[0]); - this.drag.pinched = false; - this.pinch.scale = this._getScale(); - - this._handleTouch(this.drag.pointer); -}; - -/** - * handle drag start event - * @private - */ -Graph.prototype._onDragStart = 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) { - if (this.drag.pinched) { - return; - } - - var pointer = this._getPointer(event.gesture.touches[0]); - - 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 animation 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.touches[0]); - this.pointerPosition = pointer; - this._handleTap(pointer); - -}; - - -/** - * handle doubletap event - * @private - */ -Graph.prototype._onDoubleTap = function (event) { - var pointer = this._getPointer(event.gesture.touches[0]); - this._handleDoubleTap(pointer); - -}; - - -/** - * handle long tap event: multi select nodes - * @private - */ -Graph.prototype._onHold = function (event) { - var pointer = this._getPointer(event.gesture.touches[0]); - this.pointerPosition = pointer; - this._handleOnHold(pointer); -}; - -/** - * handle the release of the screen - * - * @param event - * @private - */ -Graph.prototype._onRelease = function (event) { - this._handleOnRelease(); -}; - -/** - * 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.areaCenter = {"x" : pointer.x,"y" : pointer.y }; -// console.log(translation.x,translation.y,pointer.x,pointer.y,scale); - 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 - 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(); - } - } -}; - - -/** - * Temporary method to test calculating a hub value for the nodes - * @param {number} level Maximum number edges between two nodes in order - * to call them connected. Optional, 1 by default - * @return {Number[]} connectioncount array with the connection count - * for each node - * @private - */ -Graph.prototype._getConnectionCount = function(level) { - if (level == undefined) { - level = 1; - } - - // get the nodes connected to given nodes - function getConnectedNodes(nodes) { - var connectedNodes = []; - - for (var j = 0, jMax = nodes.length; j < jMax; j++) { - var node = nodes[j]; - - // find all nodes connected to this node - var edges = node.edges; - for (var i = 0, iMax = edges.length; i < iMax; i++) { - var edge = edges[i]; - var other = null; - - // check if connected - if (edge.from == node) - other = edge.to; - else if (edge.to == node) - other = edge.from; - - // check if the other node is not already in the list with nodes - var k, kMax; - if (other) { - for (k = 0, kMax = nodes.length; k < kMax; k++) { - if (nodes[k] == other) { - other = null; - break; - } - } - } - if (other) { - for (k = 0, kMax = connectedNodes.length; k < kMax; k++) { - if (connectedNodes[k] == other) { - other = null; - break; - } - } - } - - if (other) - connectedNodes.push(other); - } - } - - return connectedNodes; - } - - var connections = []; - var nodes = this.nodes; - for (var id in nodes) { - if (nodes.hasOwnProperty(id)) { - var c = [nodes[id]]; - for (var l = 0; l < level; l++) { - c = c.concat(getConnectedNodes(c)); - } - connections.push(c); - } - } - - var hubs = []; - for (var i = 0, len = connections.length; i < len; i++) { - hubs.push(connections[i].length); - } - - return hubs; -}; - -/** - * 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; - } - - if (this.constants.navigation.enabled == true) { - this._relocateNavigation(); - } -}; - -/** - * 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.unsubscribe(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.subscribe(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.isFixed() && this.createNodeOnClick != true) { - // TODO: position new nodes in a smarter way! - var radius = this.constants.edges.length; - var count = ids.length; - var angle = 2 * Math.PI * (i / count); - node.x = radius * Math.cos(angle); - 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._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.unsubscribe(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.subscribe(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); -}; - -/** - * 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.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) { - edge.disconnect(); - delete edges[id]; - } - } - - this.moving = true; - this._updateValueRange(edges); -}; - -/** - * 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,true); - - this._drawTree(ctx,"#F00F0F"); - - // restore original scaling and translation - ctx.restore(); - - if (this.constants.navigation.enabled == true) { - this._doInNavigationSector("_drawNodes",ctx,true); - } -}; - -/** - * 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() { - //var start = new Date(); - - // find stable position - var count = 0; - var vmin = this.constants.minVelocity; - var stable = false; - while (!stable && count < this.constants.maxIterations) { - this._initializeForceCalculation(); - this._discreteStepNodes(); - stable = !this._isMoving(vmin); - count++; - } - this.zoomToFit(); -}; - - - - -/** - * 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 vminCorrected = vmin / this.scale; - var nodes = this.nodes; - for (var id in nodes) { - if (nodes.hasOwnProperty(id) && nodes[id].isMoving(vminCorrected)) { - return true; - } - } - return false; -}; - - -/** - * /** - * Perform one discrete step for all nodes - * - * @param interval - * @private - */ -Graph.prototype._discreteStepNodes = function() { - var interval = 0.5; - var nodes = this.nodes; - - this.constants.maxVelocity = 30; - - if (this.constants.maxVelocity > 0) { - for (var id in nodes) { - if (nodes.hasOwnProperty(id)) { - nodes[id].discreteStepLimited(interval, this.constants.maxVelocity); - } - } - } - else { - for (var id in nodes) { - if (nodes.hasOwnProperty(id)) { - nodes[id].discreteStep(interval); - } - } - } - var vmin = this.constants.minVelocity; - this.moving = this._isMoving(vmin); -}; - - - -/** - * Start animating nodes and edges - * - * @poram {Boolean} runCalculationStep - */ -Graph.prototype.start = function() { - if (!this.freezeSimulation) { - - if (this.moving) { - this._doInAllActiveSectors("_initializeForceCalculation"); - this._doInAllActiveSectors("_discreteStepNodes"); - this._findCenter(this._getRange()) - } - - if (this.moving || this.xIncrement != 0 || this.yIncrement != 0 || this.zoomIncrement != 0) { - // start animation. only start calculationTimer if it is not already running - if (!this.timer) { - var graph = this; - this.timer = window.setTimeout(function () { - graph.timer = undefined; - - // keyboad movement - if (graph.xIncrement != 0 || graph.yIncrement != 0) { - var translation = graph._getTranslation(); - graph._setTranslation(translation.x+graph.xIncrement, translation.y+graph.yIncrement); - } - if (graph.zoomIncrement != 0) { - var center = { - x: graph.frame.canvas.clientWidth / 2, - y: graph.frame.canvas.clientHeight / 2 - }; - graph._zoom(graph.scale*(1 + graph.zoomIncrement), center); - } - - - graph.start(); - graph.start(); - graph._redraw(); - - //this.end = window.performance.now(); - //this.time = this.end - this.startTime; - //console.log('refresh time: ' + this.time); - //this.startTime = window.performance.now(); - }, this.renderTimestep); - } - } - else { - this._redraw(); - } - } -}; - -/** - * Debug function, does one step of the graph - */ -Graph.prototype.singleStep = function() { - if (this.moving) { - this._initializeForceCalculation(true); - this._discreteStepNodes(); - - var vmin = this.constants.minVelocity; - this.moving = this._isMoving(vmin); - this._redraw(); - } -}; - - - -/** - * Freeze the animation - */ -Graph.prototype.toggleFreeze = function() { - if (this.freezeSimulation == false) { - this.freezeSimulation = true; - } - else { - this.freezeSimulation = false; - this.start(); - } -}; - - - -/** - * Mixin the physics system and initialize the parameters required. - * - * @private - */ -Graph.prototype._loadPhysicsSystem = function() { - for (var mixinFunction in physicsMixin) { - if (physicsMixin.hasOwnProperty(mixinFunction)) { - Graph.prototype[mixinFunction] = physicsMixin[mixinFunction]; - } - } -}; - - -/** - * Mixin the cluster system and initialize the parameters required. - * - * @private - */ -Graph.prototype._loadClusterSystem = function() { - this.clusterSession = 0; - this.hubThreshold = 5; - - for (var mixinFunction in ClusterMixin) { - if (ClusterMixin.hasOwnProperty(mixinFunction)) { - Graph.prototype[mixinFunction] = ClusterMixin[mixinFunction]; - } - } -} - -/** - * Mixin the sector system and initialize the parameters required - * - * @private - */ -Graph.prototype._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["navigation"] = {"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 - for (var mixinFunction in SectorMixin) { - if (SectorMixin.hasOwnProperty(mixinFunction)) { - Graph.prototype[mixinFunction] = SectorMixin[mixinFunction]; - } - } -}; - - -/** - * Mixin the selection system and initialize the parameters required - * - * @private - */ -Graph.prototype._loadSelectionSystem = function() { - this.selectionObj = {}; - - for (var mixinFunction in SelectionMixin) { - if (SelectionMixin.hasOwnProperty(mixinFunction)) { - Graph.prototype[mixinFunction] = SelectionMixin[mixinFunction]; - } - } -} - - - -/** - * Mixin the navigationUI (User Interface) system and initialize the parameters required - * - * @private - */ -Graph.prototype._loadManipulationSystem = function() { - // reset global variables -- these are used by the selection of nodes and edges. - this.blockConnectingEdgeSelection = false; - this.forceAppendSelection = false - - - if (this.constants.dataManipulationToolbar.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.containerElement.insertBefore(this.manipulationDiv, this.frame); - } - // load the manipulation functions - for (var mixinFunction in manipulationMixin) { - if (manipulationMixin.hasOwnProperty(mixinFunction)) { - Graph.prototype[mixinFunction] = manipulationMixin[mixinFunction]; - } - } - - // create the manipulator toolbar - this._createManipulatorBar(); - } -} - -/** - * Mixin the navigation (User Interface) system and initialize the parameters required - * - * @private - */ -Graph.prototype._loadNavigationControls = function() { - for (var mixinFunction in NavigationMixin) { - if (NavigationMixin.hasOwnProperty(mixinFunction)) { - Graph.prototype[mixinFunction] = NavigationMixin[mixinFunction]; - } - } - - if (this.constants.navigation.enabled == true) { - this._loadNavigationElements(); - } -} - -/** - * this function exists to avoid errors when not loading the navigation system - */ -Graph.prototype._relocateNavigation = function() { - // empty, is overloaded by navigation system -} - -/** - * * this function exists to avoid errors when not loading the navigation system - */ -Graph.prototype._unHighlightAll = function() { - // empty, is overloaded by the navigation system -} - - - - - - - - - - - - - - - - - - - - - - - - - -/** - * vis.js module exports - */ -var vis = { - util: util, - events: events, - - Controller: Controller, - DataSet: DataSet, - DataView: DataView, - Range: Range, - Stack: Stack, - TimeStep: TimeStep, - EventBus: EventBus, - - 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; -} - - -},{"hammerjs":2,"moment":3,"mousetrap":4}],2:[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); -},{}],3:[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); - -},{}],4:[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/src/graph/ClusterMixin.js b/src/graph/ClusterMixin.js index 740f618f..bc8a8815 100644 --- a/src/graph/ClusterMixin.js +++ b/src/graph/ClusterMixin.js @@ -359,9 +359,9 @@ var ClusterMixin = { 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 + this.constants.physics.springLength * (0.1 * (0.5 - Math.random()) * parentNode.clusterSize); - childNode.y = parentNode.y + this.constants.physics.springLength * (0.1 * (0.5 - Math.random()) * parentNode.clusterSize); - console.log(childNode.x,childNode.y,parentNode.x,parentNode.y); + childNode.x = parentNode.x + this.constants.edges.length * 0.3 * (0.5 - Math.random()) * parentNode.clusterSize; + childNode.y = parentNode.y + this.constants.edges.length * 0.3 * (0.5 - Math.random()) * parentNode.clusterSize; + // remove node from the list delete parentNode.containedNodes[containedNodeId]; diff --git a/src/graph/Edge.js b/src/graph/Edge.js index c74a5bdc..5b6959f0 100644 --- a/src/graph/Edge.js +++ b/src/graph/Edge.js @@ -31,7 +31,7 @@ function Edge (properties, graph, constants) { this.title = undefined; this.width = constants.edges.width; this.value = undefined; - this.length = constants.physics.springLength; + this.length = constants.edges.length; this.selected = false; this.from = null; // a node @@ -55,6 +55,7 @@ function Edge (properties, graph, constants) { this.lengthFixed = false; this.setProperties(properties, constants); + } /** @@ -102,6 +103,7 @@ Edge.prototype.setProperties = function(properties, constants) { this.widthFixed = this.widthFixed || (properties.width !== undefined); this.lengthFixed = this.lengthFixed || (properties.length !== undefined); + this.stiffness = 1 / this.length; // set draw method based on style switch (this.style) { diff --git a/src/graph/Graph.js b/src/graph/Graph.js index 0dbc111a..e2949bb8 100644 --- a/src/graph/Graph.js +++ b/src/graph/Graph.js @@ -450,7 +450,7 @@ Graph.prototype.setOptions = function (options) { if (options.edges.length !== undefined && options.nodes && options.nodes.distance === undefined) { - this.constants.physics.springLength = options.edges.length; + this.constants.edges.length = options.edges.length; this.constants.nodes.distance = options.edges.length * 1.25; } @@ -1770,7 +1770,6 @@ Graph.prototype.start = function() { } - graph.start(); graph.start(); graph._redraw(); @@ -1792,7 +1791,7 @@ Graph.prototype.start = function() { */ Graph.prototype.singleStep = function() { if (this.moving) { - this._initializeForceCalculation(true); + this._initializeForceCalculation(); this._discreteStepNodes(); var vmin = this.constants.minVelocity; diff --git a/src/graph/physicsMixin.js b/src/graph/physicsMixin.js index b52d32c7..83cb438a 100644 --- a/src/graph/physicsMixin.js +++ b/src/graph/physicsMixin.js @@ -11,7 +11,7 @@ var physicsMixin = { * * @private */ - _initializeForceCalculation : function(useBarnesHut) { + _initializeForceCalculation : function() { // stop calculation if there is only one node if (this.nodeIndices.length == 1) { this.nodes[this.nodeIndices[0]]._setForce(0,0); @@ -22,15 +22,9 @@ var physicsMixin = { this.clusterToFit(this.constants.clustering.reduceToNodes, false); } - this._calculateForcesRepulsion(); - -// // we now start the force calculation -// if (useBarnesHut == true) { -// this._calculateForcesBarnesHut(); -// } -// else { -// this._calculateForcesRepulsion(); -// } + // we now start the force calculation + // this._calculateForcesBarnesHut(); + this._calculateForcesOriginal(); } }, @@ -40,23 +34,23 @@ var physicsMixin = { * Forces are caused by: edges, repulsing forces between nodes, gravity * @private */ - _calculateForcesRepulsion : function() { + _calculateForcesOriginal : 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 // var startTimeAll = Date.now(); - this._applyCentralGravity(); + this._calculateGravitationalForces(1); // var startTimeRepulsion = Date.now(); // All nodes repel eachother. - this._applyNodeRepulsion(); + this._calculateRepulsionForces(); // var endTimeRepulsion = Date.now(); // the edges are strings - this._applySpringForces(); + this._calculateSpringForces(1); // var endTimeAll = Date.now(); @@ -76,7 +70,7 @@ var physicsMixin = { // var startTimeAll = Date.now(); - this._applyCentralGravity(); + this._clearForces(); // var startTimeRepulsion = Date.now(); // All nodes repel eachother. @@ -85,7 +79,7 @@ var physicsMixin = { // var endTimeRepulsion = Date.now(); // the edges are strings - this._applySpringForces(); + this._calculateSpringForces(1); // var endTimeAll = Date.now(); @@ -105,7 +99,7 @@ var physicsMixin = { } }, - _applyCentralGravity : function() { + _calculateGravitationalForces : function(boost) { var dx, dy, angle, fx, fy, node, i; var nodes = this.nodes; var gravity = this.constants.physics.centralGravity; @@ -130,7 +124,7 @@ var physicsMixin = { } }, - _applyNodeRepulsion : function() { + _calculateRepulsionForces : function() { var dx, dy, angle, distance, fx, fy, clusterSize, repulsingForce, node1, node2, i, j; var nodes = this.nodes; @@ -180,7 +174,7 @@ var physicsMixin = { } }, - _applySpringForces : function() { + _calculateSpringForces : function(boost) { var dx, dy, angle, fx, fy, springForce, length, edgeLength, edge, edgeId, clusterSize; var edges = this.edges; @@ -206,7 +200,7 @@ var physicsMixin = { fx = Math.cos(angle) * springForce; fy = Math.sin(angle) * springForce; - //console.log(edge.length,dx,dy,edge.springConstant,angle) + edge.from._addForce(-fx, -fy); edge.to._addForce(fx, fy); }