// utility functions
// first check if moment.js is already loaded in the browser window, if so,
// use this instance. Else, load via commonjs.
var moment = require('./module/moment');
/**
* Test whether given object is a number
* @param {*} object
* @return {Boolean} isNumber
*/
exports.isNumber = function(object) {
return (object instanceof Number || typeof object == 'number');
};
/**
* Test whether given object is a string
* @param {*} object
* @return {Boolean} isString
*/
exports.isString = function(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
*/
exports.isDate = function(object) {
if (object instanceof Date) {
return true;
}
else if (exports.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
*/
exports.isDataTable = function(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
*/
exports.randomUUID = function() {
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
*/
exports.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)) {
a[prop] = other[prop];
}
}
}
return a;
};
/**
* Extend object a with selected properties of object b or a series of objects
* Only properties with defined values are copied
* @param {Array.<String>} props
* @param {Object} a
* @param {... Object} b
* @return {Object} a
*/
exports.selectiveExtend = function (props, a, b) {
if (!Array.isArray(props)) {
throw new Error('Array with property names expected as first argument');
}
for (var i = 2; i < arguments.length; i++) {
var other = arguments[i];
for (var p = 0; p < props.length; p++) {
var prop = props[p];
if (other.hasOwnProperty(prop)) {
a[prop] = other[prop];
}
}
}
return a;
};
/**
* Extend object a with selected properties of object b or a series of objects
* Only properties with defined values are copied
* @param {Array.<String>} props
* @param {Object} a
* @param {... Object} b
* @return {Object} a
*/
exports.selectiveDeepExtend = function (props, a, b) {
// TODO: add support for Arrays to deepExtend
if (Array.isArray(b)) {
throw new TypeError('Arrays are not supported by deepExtend');
}
for (var i = 2; i < arguments.length; i++) {
var other = arguments[i];
for (var p = 0; p < props.length; p++) {
var prop = props[p];
if (other.hasOwnProperty(prop)) {
if (b[prop] && b[prop].constructor === Object) {
if (a[prop] === undefined) {
a[prop] = {};
}
if (a[prop].constructor === Object) {
exports.deepExtend(a[prop], b[prop]);
}
else {
a[prop] = b[prop];
}
} else if (Array.isArray(b[prop])) {
throw new TypeError('Arrays are not supported by deepExtend');
} else {
a[prop] = b[prop];
}
}
}
}
return a;
};
/**
* Extend object a with selected properties of object b or a series of objects
* Only properties with defined values are copied
* @param {Array.<String>} props
* @param {Object} a
* @param {... Object} b
* @return {Object} a
*/
exports.selectiveNotDeepExtend = function (props, a, b) {
// TODO: add support for Arrays to deepExtend
if (Array.isArray(b)) {
throw new TypeError('Arrays are not supported by deepExtend');
}
for (var prop in b) {
if (b.hasOwnProperty(prop)) {
if (props.indexOf(prop) == -1) {
if (b[prop] && b[prop].constructor === Object) {
if (a[prop] === undefined) {
a[prop] = {};
}
if (a[prop].constructor === Object) {
exports.deepExtend(a[prop], b[prop]);
}
else {
a[prop] = b[prop];
}
} else if (Array.isArray(b[prop])) {
throw new TypeError('Arrays are not supported by deepExtend');
} else {
a[prop] = b[prop];
}
}
}
}
return a;
};
/**
* Deep extend an object a with the properties of object b
* @param {Object} a
* @param {Object} b
* @returns {Object}
*/
exports.deepExtend = function(a, b) {
// TODO: add support for Arrays to deepExtend
if (Array.isArray(b)) {
throw new TypeError('Arrays are not supported by deepExtend');
}
for (var prop in b) {
if (b.hasOwnProperty(prop)) {
if (b[prop] && b[prop].constructor === Object) {
if (a[prop] === undefined) {
a[prop] = {};
}
if (a[prop].constructor === Object) {
exports.deepExtend(a[prop], b[prop]);
}
else {
a[prop] = b[prop];
}
} else if (Array.isArray(b[prop])) {
throw new TypeError('Arrays are not supported by deepExtend');
} else {
a[prop] = b[prop];
}
}
}
return a;
};
/**
* Test whether all elements in two arrays are equal.
* @param {Array} a
* @param {Array} b
* @return {boolean} Returns true if both arrays have the same length and same
* elements.
*/
exports.equalArray = function (a, b) {
if (a.length != b.length) return false;
for (var i = 0, len = a.length; i < len; i++) {
if (a[i] != b[i]) return false;
}
return true;
};
/**
* 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
*/
exports.convert = function(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 (exports.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 (exports.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 ' + exports.getType(object) +
' to type Date');
}
case 'Moment':
if (exports.isNumber(object)) {
return moment(object);
}
if (object instanceof Date) {
return moment(object.valueOf());
}
else if (moment.isMoment(object)) {
return moment(object);
}
if (exports.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 ' + exports.getType(object) +
' to type Date');
}
case 'ISODate':
if (exports.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 (exports.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 ' + exports.getType(object) +
' to type ISODate');
}
case 'ASPDate':
if (exports.isNumber(object)) {
return '/Date(' + object + ')/';
}
else if (object instanceof Date) {
return '/Date(' + object.valueOf() + ')/';
}
else if (exports.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 ' + exports.getType(object) +
' to type ASPDate');
}
default:
throw new Error('Unknown 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 exports.getType([]) returns 'Array'
* @param {*} object
* @return {String} type
*/
exports.getType = function(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 (Array.isArray(object)) {
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.
*/
exports.getAbsoluteLeft = function(elem) {
return elem.getBoundingClientRect().left + window.pageXOffset;
};
/**
* 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.
*/
exports.getAbsoluteTop = function(elem) {
return elem.getBoundingClientRect().top + window.pageYOffset;
};
/**
* add a className to the given elements style
* @param {Element} elem
* @param {String} className
*/
exports.addClassName = function(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
*/
exports.removeClassName = function(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)
*/
exports.forEach = function(object, callback) {
var i,
len;
if (Array.isArray(object)) {
// 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);
}
}
}
};
/**
* Convert an object into an array: all objects properties are put into the
* array. The resulting array is unordered.
* @param {Object} object
* @param {Array} array
*/
exports.toArray = function(object) {
var array = [];
for (var prop in object) {
if (object.hasOwnProperty(prop)) array.push(object[prop]);
}
return array;
}
/**
* Update a property in an object
* @param {Object} object
* @param {String} key
* @param {*} value
* @return {Boolean} changed
*/
exports.updateProperty = function(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]
*/
exports.addEventListener = function(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]
*/
exports.removeEventListener = function(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);
}
};
/**
* Cancels the event if it is cancelable, without stopping further propagation of the event.
*/
exports.preventDefault = function (event) {
if (!event)
event = window.event;
if (event.preventDefault) {
event.preventDefault(); // non-IE browsers
}
else {
event.returnValue = false; // IE browsers
}
};
/**
* Get HTML element which is the target of the event
* @param {Event} event
* @return {Element} target element
*/
exports.getTarget = function(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;
};
exports.option = {};
/**
* Convert a value into a boolean
* @param {Boolean | function | undefined} value
* @param {Boolean} [defaultValue]
* @returns {Boolean} bool
*/
exports.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
*/
exports.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
*/
exports.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
*/
exports.option.asSize = function (value, defaultValue) {
if (typeof value == 'function') {
value = value();
}
if (exports.isString(value)) {
return value;
}
else if (exports.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
*/
exports.option.asElement = function (value, defaultValue) {
if (typeof value == 'function') {
value = value();
}
return value || defaultValue || null;
};
exports.GiveDec = function(Hex) {
var Value;
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;
};
exports.GiveHex = function(Dec) {
var Value;
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;
};
/**
* Parse a color property into an object with border, background, and
* highlight colors
* @param {Object | String} color
* @return {Object} colorObject
*/
exports.parseColor = function(color) {
var c;
if (exports.isString(color)) {
if (exports.isValidRGB(color)) {
var rgb = color.substr(4).substr(0,color.length-5).split(',');
color = exports.RGBToHex(rgb[0],rgb[1],rgb[2]);
}
if (exports.isValidHex(color)) {
var hsv = exports.hexToHSV(color);
var lighterColorHSV = {h:hsv.h,s:hsv.s * 0.45,v:Math.min(1,hsv.v * 1.05)};
var darkerColorHSV = {h:hsv.h,s:Math.min(1,hsv.v * 1.25),v:hsv.v*0.6};
var darkerColorHex = exports.HSVToHex(darkerColorHSV.h ,darkerColorHSV.h ,darkerColorHSV.v);
var lighterColorHex = exports.HSVToHex(lighterColorHSV.h,lighterColorHSV.s,lighterColorHSV.v);
c = {
background: color,
border:darkerColorHex,
highlight: {
background:lighterColorHex,
border:darkerColorHex
},
hover: {
background:lighterColorHex,
border:darkerColorHex
}
};
}
else {
c = {
background:color,
border:color,
highlight: {
background:color,
border:color
},
hover: {
background:color,
border:color
}
};
}
}
else {
c = {};
c.background = color.background || 'white';
c.border = color.border || c.background;
if (exports.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;
}
if (exports.isString(color.hover)) {
c.hover = {
border: color.hover,
background: color.hover
}
}
else {
c.hover = {};
c.hover.background = color.hover && color.hover.background || c.background;
c.hover.border = color.hover && color.hover.border || c.border;
}
}
return c;
};
/**
* http://www.yellowpipe.com/yis/tools/hex-to-rgb/color-converter.php
*
* @param {String} hex
* @returns {{r: *, g: *, b: *}}
*/
exports.hexToRGB = function(hex) {
hex = hex.replace("#","").toUpperCase();
var a = exports.GiveDec(hex.substring(0, 1));
var b = exports.GiveDec(hex.substring(1, 2));
var c = exports.GiveDec(hex.substring(2, 3));
var d = exports.GiveDec(hex.substring(3, 4));
var e = exports.GiveDec(hex.substring(4, 5));
var f = exports.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};
};
exports.RGBToHex = function(red,green,blue) {
var a = exports.GiveHex(Math.floor(red / 16));
var b = exports.GiveHex(red % 16);
var c = exports.GiveHex(Math.floor(green / 16));
var d = exports.GiveHex(green % 16);
var e = exports.GiveHex(Math.floor(blue / 16));
var f = exports.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
*/
exports.RGBToHSV = function(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};
};
var cssUtil = {
// split a string with css styles into an object with key/values
split: function (cssText) {
var styles = {};
cssText.split(';').forEach(function (style) {
if (style.trim() != '') {
var parts = style.split(':');
var key = parts[0].trim();
var value = parts[1].trim();
styles[key] = value;
}
});
return styles;
},
// build a css text string from an object with key/values
join: function (styles) {
return Object.keys(styles)
.map(function (key) {
return key + ': ' + styles[key];
})
.join('; ');
}
};
/**
* Append a string with css styles to an element
* @param {Element} element
* @param {String} cssText
*/
exports.addCssText = function (element, cssText) {
var currentStyles = cssUtil.split(element.style.cssText);
var newStyles = cssUtil.split(cssText);
var styles = exports.extend(currentStyles, newStyles);
element.style.cssText = cssUtil.join(styles);
};
/**
* Remove a string with css styles from an element
* @param {Element} element
* @param {String} cssText
*/
exports.removeCssText = function (element, cssText) {
var styles = cssUtil.split(element.style.cssText);
var removeStyles = cssUtil.split(cssText);
for (var key in removeStyles) {
if (removeStyles.hasOwnProperty(key)) {
delete styles[key];
}
}
element.style.cssText = cssUtil.join(styles);
};
/**
* https://gist.github.com/mjijackson/5311256
* @param h
* @param s
* @param v
* @returns {{r: number, g: number, b: number}}
* @constructor
*/
exports.HSVToRGB = function(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) };
};
exports.HSVToHex = function(h, s, v) {
var rgb = exports.HSVToRGB(h, s, v);
return exports.RGBToHex(rgb.r, rgb.g, rgb.b);
};
exports.hexToHSV = function(hex) {
var rgb = exports.hexToRGB(hex);
return exports.RGBToHSV(rgb.r, rgb.g, rgb.b);
};
exports.isValidHex = function(hex) {
var isOk = /(^#[0-9A-F]{6}$)|(^#[0-9A-F]{3}$)/i.test(hex);
return isOk;
};
exports.isValidRGB = function(rgb) {
rgb = rgb.replace(" ","");
var isOk = /rgb\((\d{1,3}),(\d{1,3}),(\d{1,3})\)/i.test(rgb);
return isOk;
}
/**
* This recursively redirects the prototype of JSON objects to the referenceObject
* This is used for default options.
*
* @param referenceObject
* @returns {*}
*/
exports.selectiveBridgeObject = function(fields, referenceObject) {
if (typeof referenceObject == "object") {
var objectTo = Object.create(referenceObject);
for (var i = 0; i < fields.length; i++) {
if (referenceObject.hasOwnProperty(fields[i])) {
if (typeof referenceObject[fields[i]] == "object") {
objectTo[fields[i]] = exports.bridgeObject(referenceObject[fields[i]]);
}
}
}
return objectTo;
}
else {
return null;
}
};
/**
* This recursively redirects the prototype of JSON objects to the referenceObject
* This is used for default options.
*
* @param referenceObject
* @returns {*}
*/
exports.bridgeObject = function(referenceObject) {
if (typeof referenceObject == "object") {
var objectTo = Object.create(referenceObject);
for (var i in referenceObject) {
if (referenceObject.hasOwnProperty(i)) {
if (typeof referenceObject[i] == "object") {
objectTo[i] = exports.bridgeObject(referenceObject[i]);
}
}
}
return objectTo;
}
else {
return null;
}
};
/**
* this is used to set the options of subobjects in the options object. A requirement of these subobjects
* is that they have an 'enabled' element which is optional for the user but mandatory for the program.
*
* @param [object] mergeTarget | this is either this.options or the options used for the groups.
* @param [object] options | options
* @param [String] option | this is the option key in the options argument
* @private
*/
exports.mergeOptions = function (mergeTarget, options, option) {
if (options[option] !== undefined) {
if (typeof options[option] == 'boolean') {
mergeTarget[option].enabled = options[option];
}
else {
mergeTarget[option].enabled = true;
for (prop in options[option]) {
if (options[option].hasOwnProperty(prop)) {
mergeTarget[option][prop] = options[option][prop];
}
}
}
}
}
/**
* this is used to set the options of subobjects in the options object. A requirement of these subobjects
* is that they have an 'enabled' element which is optional for the user but mandatory for the program.
*
* @param [object] mergeTarget | this is either this.options or the options used for the groups.
* @param [object] options | options
* @param [String] option | this is the option key in the options argument
* @private
*/
exports.mergeOptions = function (mergeTarget, options, option) {
if (options[option] !== undefined) {
if (typeof options[option] == 'boolean') {
mergeTarget[option].enabled = options[option];
}
else {
mergeTarget[option].enabled = true;
for (prop in options[option]) {
if (options[option].hasOwnProperty(prop)) {
mergeTarget[option][prop] = options[option][prop];
}
}
}
}
}
/**
* This function does a binary search for a visible item. The user can select either the this.orderedItems.byStart or .byEnd
* arrays. This is done by giving a boolean value true if you want to use the byEnd.
* This is done to be able to select the correct if statement (we do not want to check if an item is visible, we want to check
* if the time we selected (start or end) is within the current range).
*
* The trick is that every interval has to either enter the screen at the initial load or by dragging. The case of the RangeItem that is
* before and after the current range is handled by simply checking if it was in view before and if it is again. For all the rest,
* either the start OR end time has to be in the range.
*
* @param {Item[]} orderedItems Items ordered by start
* @param {{start: number, end: number}} range
* @param {String} field
* @param {String} field2
* @returns {number}
* @private
*/
exports.binarySearch = function(orderedItems, range, field, field2) {
var array = orderedItems;
var maxIterations = 10000;
var iteration = 0;
var found = false;
var low = 0;
var high = array.length;
var newLow = low;
var newHigh = high;
var guess = Math.floor(0.5*(high+low));
var value;
if (high == 0) {
guess = -1;
}
else if (high == 1) {
if (array[guess].isVisible(range)) {
guess = 0;
}
else {
guess = -1;
}
}
else {
high -= 1;
while (found == false && iteration < maxIterations) {
value = field2 === undefined ? array[guess][field] : array[guess][field][field2];
if (array[guess].isVisible(range)) {
found = true;
}
else {
if (value < range.start) { // it is too small --> increase low
newLow = Math.floor(0.5*(high+low));
}
else { // it is too big --> decrease high
newHigh = Math.floor(0.5*(high+low));
}
// not in list;
if (low == newLow && high == newHigh) {
guess = -1;
found = true;
}
else {
high = newHigh; low = newLow;
guess = Math.floor(0.5*(high+low));
}
}
iteration++;
}
if (iteration >= maxIterations) {
console.log("BinarySearch too many iterations. Aborting.");
}
}
return guess;
};
/**
* This function does a binary search for a visible item. The user can select either the this.orderedItems.byStart or .byEnd
* arrays. This is done by giving a boolean value true if you want to use the byEnd.
* This is done to be able to select the correct if statement (we do not want to check if an item is visible, we want to check
* if the time we selected (start or end) is within the current range).
*
* The trick is that every interval has to either enter the screen at the initial load or by dragging. The case of the RangeItem that is
* before and after the current range is handled by simply checking if it was in view before and if it is again. For all the rest,
* either the start OR end time has to be in the range.
*
* @param {Array} orderedItems
* @param {{start: number, end: number}} target
* @param {String} field
* @param {String} sidePreference 'before' or 'after'
* @returns {number}
* @private
*/
exports.binarySearchGeneric = function(orderedItems, target, field, sidePreference) {
var maxIterations = 10000;
var iteration = 0;
var array = orderedItems;
var found = false;
var low = 0;
var high = array.length;
var newLow = low;
var newHigh = high;
var guess = Math.floor(0.5*(high+low));
var newGuess;
var prevValue, value, nextValue;
if (high == 0) {guess = -1;}
else if (high == 1) {
value = array[guess][field];
if (value == target) {
guess = 0;
}
else {
guess = -1;
}
}
else {
high -= 1;
while (found == false && iteration < maxIterations) {
prevValue = array[Math.max(0,guess - 1)][field];
value = array[guess][field];
nextValue = array[Math.min(array.length-1,guess + 1)][field];
if (value == target || prevValue < target && value > target || value < target && nextValue > target) {
found = true;
if (value != target) {
if (sidePreference == 'before') {
if (prevValue < target && value > target) {
guess = Math.max(0,guess - 1);
}
}
else {
if (value < target && nextValue > target) {
guess = Math.min(array.length-1,guess + 1);
}
}
}
}
else {
if (value < target) { // it is too small --> increase low
newLow = Math.floor(0.5*(high+low));
}
else { // it is too big --> decrease high
newHigh = Math.floor(0.5*(high+low));
}
newGuess = Math.floor(0.5*(high+low));
// not in list;
if (low == newLow && high == newHigh) {
guess = -1;
found = true;
}
else {
high = newHigh; low = newLow;
guess = Math.floor(0.5*(high+low));
}
}
iteration++;
}
if (iteration >= maxIterations) {
console.log("BinarySearch too many iterations. Aborting.");
}
}
return guess;
};
/**
* Quadratic ease-in-out
* http://gizma.com/easing/
* @param {number} t Current time
* @param {number} start Start value
* @param {number} end End value
* @param {number} duration Duration
* @returns {number} Value corresponding with current time
*/
exports.easeInOutQuad = function (t, start, end, duration) {
var change = end - start;
t /= duration/2;
if (t < 1) return change/2*t*t + start;
t--;
return -change/2 * (t*(t-2) - 1) + start;
};
/*
* Easing Functions - inspired from http://gizma.com/easing/
* only considering the t value for the range [0, 1] => [0, 1]
* https://gist.github.com/gre/1650294
*/
exports.easingFunctions = {
// no easing, no acceleration
linear: function (t) {
return t
},
// accelerating from zero velocity
easeInQuad: function (t) {
return t * t
},
// decelerating to zero velocity
easeOutQuad: function (t) {
return t * (2 - t)
},
// acceleration until halfway, then deceleration
easeInOutQuad: function (t) {
return t < .5 ? 2 * t * t : -1 + (4 - 2 * t) * t
},
// accelerating from zero velocity
easeInCubic: function (t) {
return t * t * t
},
// decelerating to zero velocity
easeOutCubic: function (t) {
return (--t) * t * t + 1
},
// acceleration until halfway, then deceleration
easeInOutCubic: function (t) {
return t < .5 ? 4 * t * t * t : (t - 1) * (2 * t - 2) * (2 * t - 2) + 1
},
// accelerating from zero velocity
easeInQuart: function (t) {
return t * t * t * t
},
// decelerating to zero velocity
easeOutQuart: function (t) {
return 1 - (--t) * t * t * t
},
// acceleration until halfway, then deceleration
easeInOutQuart: function (t) {
return t < .5 ? 8 * t * t * t * t : 1 - 8 * (--t) * t * t * t
},
// accelerating from zero velocity
easeInQuint: function (t) {
return t * t * t * t * t
},
// decelerating to zero velocity
easeOutQuint: function (t) {
return 1 + (--t) * t * t * t * t
},
// acceleration until halfway, then deceleration
easeInOutQuint: function (t) {
return t < .5 ? 16 * t * t * t * t * t : 1 + 16 * (--t) * t * t * t * t
}
};