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1281 lines
33 KiB
1281 lines
33 KiB
// utility functions
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// first check if moment.js is already loaded in the browser window, if so,
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// use this instance. Else, load via commonjs.
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var moment = require('./module/moment');
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/**
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* Test whether given object is a number
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* @param {*} object
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* @return {Boolean} isNumber
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*/
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exports.isNumber = function(object) {
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return (object instanceof Number || typeof object == 'number');
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};
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exports.recursiveDOMDelete = function(DOMobject) {
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while (DOMobject.hasChildNodes() == true) {
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exports.recursiveDOMDelete(DOMobject.firstChild);
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DOMobject.removeChild(DOMobject.firstChild);
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}
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};
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/**
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* this function gives you a range between 0 and 1 based on the min and max values in the set, the total sum of all values and the current value.
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*
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* @param min
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* @param max
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* @param total
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* @param value
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* @returns {number}
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*/
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exports.giveRange = function(min,max,total,value) {
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if (max == min) {
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return 0.5;
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}
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else {
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var scale = 1 / (max - min);
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return Math.max(0,(value - min)*scale);
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}
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}
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/**
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* Test whether given object is a string
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* @param {*} object
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* @return {Boolean} isString
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*/
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exports.isString = function(object) {
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return (object instanceof String || typeof object == 'string');
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};
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/**
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* Test whether given object is a Date, or a String containing a Date
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* @param {Date | String} object
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* @return {Boolean} isDate
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*/
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exports.isDate = function(object) {
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if (object instanceof Date) {
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return true;
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}
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else if (exports.isString(object)) {
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// test whether this string contains a date
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var match = ASPDateRegex.exec(object);
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if (match) {
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return true;
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}
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else if (!isNaN(Date.parse(object))) {
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return true;
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}
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}
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return false;
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};
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/**
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* Test whether given object is an instance of google.visualization.DataTable
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* @param {*} object
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* @return {Boolean} isDataTable
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*/
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exports.isDataTable = function(object) {
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return (typeof (google) !== 'undefined') &&
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(google.visualization) &&
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(google.visualization.DataTable) &&
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(object instanceof google.visualization.DataTable);
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};
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/**
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* Create a semi UUID
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* source: http://stackoverflow.com/a/105074/1262753
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* @return {String} uuid
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*/
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exports.randomUUID = function() {
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var S4 = function () {
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return Math.floor(
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Math.random() * 0x10000 /* 65536 */
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).toString(16);
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};
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return (
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S4() + S4() + '-' +
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S4() + '-' +
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S4() + '-' +
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S4() + '-' +
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S4() + S4() + S4()
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);
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};
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/**
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* Extend object a with the properties of object b or a series of objects
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* Only properties with defined values are copied
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* @param {Object} a
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* @param {... Object} b
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* @return {Object} a
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*/
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exports.extend = function (a, b) {
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for (var i = 1, len = arguments.length; i < len; i++) {
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var other = arguments[i];
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for (var prop in other) {
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if (other.hasOwnProperty(prop)) {
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a[prop] = other[prop];
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}
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}
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}
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return a;
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};
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/**
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* Extend object a with selected properties of object b or a series of objects
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* Only properties with defined values are copied
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* @param {Array.<String>} props
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* @param {Object} a
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* @param {... Object} b
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* @return {Object} a
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*/
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exports.selectiveExtend = function (props, a, b) {
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if (!Array.isArray(props)) {
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throw new Error('Array with property names expected as first argument');
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}
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for (var i = 2; i < arguments.length; i++) {
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var other = arguments[i];
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for (var p = 0; p < props.length; p++) {
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var prop = props[p];
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if (other.hasOwnProperty(prop)) {
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a[prop] = other[prop];
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}
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}
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}
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return a;
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};
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/**
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* Extend object a with selected properties of object b or a series of objects
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* Only properties with defined values are copied
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* @param {Array.<String>} props
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* @param {Object} a
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* @param {... Object} b
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* @return {Object} a
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*/
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exports.selectiveDeepExtend = function (props, a, b) {
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// TODO: add support for Arrays to deepExtend
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if (Array.isArray(b)) {
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throw new TypeError('Arrays are not supported by deepExtend');
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}
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for (var i = 2; i < arguments.length; i++) {
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var other = arguments[i];
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for (var p = 0; p < props.length; p++) {
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var prop = props[p];
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if (other.hasOwnProperty(prop)) {
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if (b[prop] && b[prop].constructor === Object) {
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if (a[prop] === undefined) {
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a[prop] = {};
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}
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if (a[prop].constructor === Object) {
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exports.deepExtend(a[prop], b[prop]);
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}
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else {
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a[prop] = b[prop];
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}
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} else if (Array.isArray(b[prop])) {
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throw new TypeError('Arrays are not supported by deepExtend');
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} else {
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a[prop] = b[prop];
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}
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}
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}
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}
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return a;
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};
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/**
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* Extend object a with selected properties of object b or a series of objects
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* Only properties with defined values are copied
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* @param {Array.<String>} props
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* @param {Object} a
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* @param {... Object} b
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* @return {Object} a
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*/
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exports.selectiveNotDeepExtend = function (props, a, b) {
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// TODO: add support for Arrays to deepExtend
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if (Array.isArray(b)) {
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throw new TypeError('Arrays are not supported by deepExtend');
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}
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for (var prop in b) {
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if (b.hasOwnProperty(prop)) {
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if (props.indexOf(prop) == -1) {
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if (b[prop] && b[prop].constructor === Object) {
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if (a[prop] === undefined) {
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a[prop] = {};
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}
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if (a[prop].constructor === Object) {
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exports.deepExtend(a[prop], b[prop]);
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}
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else {
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a[prop] = b[prop];
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}
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} else if (Array.isArray(b[prop])) {
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throw new TypeError('Arrays are not supported by deepExtend');
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} else {
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a[prop] = b[prop];
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}
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}
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}
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}
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return a;
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};
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/**
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* Deep extend an object a with the properties of object b
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* @param {Object} a
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* @param {Object} b
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* @param [Boolean] protoExtend --> optional parameter. If true, the prototype values will also be extended.
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* (ie. the options objects that inherit from others will also get the inherited options)
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* @returns {Object}
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*/
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exports.deepExtend = function(a, b, protoExtend) {
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// TODO: add support for Arrays to deepExtend
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if (Array.isArray(b)) {
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throw new TypeError('Arrays are not supported by deepExtend');
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}
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for (var prop in b) {
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if (b.hasOwnProperty(prop) || protoExtend === true) {
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if (b[prop] && b[prop].constructor === Object) {
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if (a[prop] === undefined) {
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a[prop] = {};
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}
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if (a[prop].constructor === Object) {
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exports.deepExtend(a[prop], b[prop], protoExtend);
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}
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else {
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a[prop] = b[prop];
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}
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} else if (Array.isArray(b[prop])) {
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throw new TypeError('Arrays are not supported by deepExtend');
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} else {
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a[prop] = b[prop];
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}
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}
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}
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return a;
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};
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/**
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* Test whether all elements in two arrays are equal.
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* @param {Array} a
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* @param {Array} b
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* @return {boolean} Returns true if both arrays have the same length and same
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* elements.
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*/
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exports.equalArray = function (a, b) {
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if (a.length != b.length) return false;
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for (var i = 0, len = a.length; i < len; i++) {
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if (a[i] != b[i]) return false;
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}
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return true;
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};
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/**
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* Convert an object to another type
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* @param {Boolean | Number | String | Date | Moment | Null | undefined} object
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* @param {String | undefined} type Name of the type. Available types:
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* 'Boolean', 'Number', 'String',
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* 'Date', 'Moment', ISODate', 'ASPDate'.
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* @return {*} object
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* @throws Error
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*/
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exports.convert = function(object, type) {
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var match;
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if (object === undefined) {
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return undefined;
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}
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if (object === null) {
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return null;
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}
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if (!type) {
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return object;
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}
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if (!(typeof type === 'string') && !(type instanceof String)) {
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throw new Error('Type must be a string');
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}
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//noinspection FallthroughInSwitchStatementJS
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switch (type) {
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case 'boolean':
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case 'Boolean':
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return Boolean(object);
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case 'number':
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case 'Number':
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return Number(object.valueOf());
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case 'string':
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case 'String':
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return String(object);
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case 'Date':
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if (exports.isNumber(object)) {
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return new Date(object);
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}
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if (object instanceof Date) {
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return new Date(object.valueOf());
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}
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else if (moment.isMoment(object)) {
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return new Date(object.valueOf());
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}
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if (exports.isString(object)) {
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match = ASPDateRegex.exec(object);
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if (match) {
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// object is an ASP date
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return new Date(Number(match[1])); // parse number
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}
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else {
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return moment(object).toDate(); // parse string
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}
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}
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else {
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throw new Error(
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'Cannot convert object of type ' + exports.getType(object) +
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' to type Date');
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}
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case 'Moment':
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if (exports.isNumber(object)) {
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return moment(object);
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}
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if (object instanceof Date) {
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return moment(object.valueOf());
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}
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else if (moment.isMoment(object)) {
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return moment(object);
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}
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if (exports.isString(object)) {
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match = ASPDateRegex.exec(object);
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if (match) {
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// object is an ASP date
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return moment(Number(match[1])); // parse number
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}
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else {
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return moment(object); // parse string
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}
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}
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else {
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throw new Error(
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'Cannot convert object of type ' + exports.getType(object) +
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' to type Date');
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}
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case 'ISODate':
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if (exports.isNumber(object)) {
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return new Date(object);
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}
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else if (object instanceof Date) {
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return object.toISOString();
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}
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else if (moment.isMoment(object)) {
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return object.toDate().toISOString();
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}
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else if (exports.isString(object)) {
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match = ASPDateRegex.exec(object);
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if (match) {
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// object is an ASP date
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return new Date(Number(match[1])).toISOString(); // parse number
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}
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else {
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return new Date(object).toISOString(); // parse string
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}
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}
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else {
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throw new Error(
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'Cannot convert object of type ' + exports.getType(object) +
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' to type ISODate');
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}
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case 'ASPDate':
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if (exports.isNumber(object)) {
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return '/Date(' + object + ')/';
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}
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else if (object instanceof Date) {
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return '/Date(' + object.valueOf() + ')/';
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}
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else if (exports.isString(object)) {
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match = ASPDateRegex.exec(object);
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var value;
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if (match) {
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// object is an ASP date
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value = new Date(Number(match[1])).valueOf(); // parse number
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}
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else {
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value = new Date(object).valueOf(); // parse string
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}
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return '/Date(' + value + ')/';
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}
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else {
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throw new Error(
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'Cannot convert object of type ' + exports.getType(object) +
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' to type ASPDate');
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}
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default:
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throw new Error('Unknown type "' + type + '"');
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}
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};
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// parse ASP.Net Date pattern,
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// for example '/Date(1198908717056)/' or '/Date(1198908717056-0700)/'
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// code from http://momentjs.com/
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var ASPDateRegex = /^\/?Date\((\-?\d+)/i;
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/**
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* Get the type of an object, for example exports.getType([]) returns 'Array'
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* @param {*} object
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* @return {String} type
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*/
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exports.getType = function(object) {
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var type = typeof object;
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if (type == 'object') {
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if (object == null) {
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return 'null';
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}
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if (object instanceof Boolean) {
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return 'Boolean';
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}
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if (object instanceof Number) {
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return 'Number';
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}
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if (object instanceof String) {
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return 'String';
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}
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if (Array.isArray(object)) {
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return 'Array';
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}
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if (object instanceof Date) {
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return 'Date';
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}
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return 'Object';
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}
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else if (type == 'number') {
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return 'Number';
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}
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else if (type == 'boolean') {
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return 'Boolean';
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}
|
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else if (type == 'string') {
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return 'String';
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}
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|
|
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return type;
|
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};
|
|
|
|
/**
|
|
* Retrieve the absolute left value of a DOM element
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|
* @param {Element} elem A dom element, for example a div
|
|
* @return {number} left The absolute left position of this element
|
|
* in the browser page.
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|
*/
|
|
exports.getAbsoluteLeft = function(elem) {
|
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return elem.getBoundingClientRect().left;
|
|
};
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|
|
|
/**
|
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* Retrieve the absolute top value of a DOM element
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|
* @param {Element} elem A dom element, for example a div
|
|
* @return {number} top The absolute top position of this element
|
|
* in the browser page.
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*/
|
|
exports.getAbsoluteTop = function(elem) {
|
|
return elem.getBoundingClientRect().top;
|
|
};
|
|
|
|
/**
|
|
* 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) {
|
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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;
|
|
};
|
|
|
|
/**
|
|
* http://stackoverflow.com/questions/5623838/rgb-to-hex-and-hex-to-rgb
|
|
*
|
|
* @param {String} hex
|
|
* @returns {{r: *, g: *, b: *}} | 255 range
|
|
*/
|
|
exports.hexToRGB = function(hex) {
|
|
// Expand shorthand form (e.g. "03F") to full form (e.g. "0033FF")
|
|
var shorthandRegex = /^#?([a-f\d])([a-f\d])([a-f\d])$/i;
|
|
hex = hex.replace(shorthandRegex, function(m, r, g, b) {
|
|
return r + r + g + g + b + b;
|
|
});
|
|
var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
|
|
return result ? {
|
|
r: parseInt(result[1], 16),
|
|
g: parseInt(result[2], 16),
|
|
b: parseInt(result[3], 16)
|
|
} : null;
|
|
};
|
|
|
|
/**
|
|
* This function takes color in hex format or rgb() or rgba() format and overrides the opacity. Returns rgba() string.
|
|
* @param color
|
|
* @param opacity
|
|
* @returns {*}
|
|
*/
|
|
exports.overrideOpacity = function(color,opacity) {
|
|
if (color.indexOf("rgb") != -1) {
|
|
var rgb = color.substr(color.indexOf("(")+1).replace(")","").split(",");
|
|
return "rgba(" + rgb[0] + "," + rgb[1] + "," + rgb[2] + "," + opacity + ")"
|
|
}
|
|
else {
|
|
var rgb = exports.hexToRGB(color);
|
|
if (rgb == null) {
|
|
return color;
|
|
}
|
|
else {
|
|
return "rgba(" + rgb.r + "," + rgb.g + "," + rgb.b + "," + opacity + ")"
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param red 0 -- 255
|
|
* @param green 0 -- 255
|
|
* @param blue 0 -- 255
|
|
* @returns {string}
|
|
* @constructor
|
|
*/
|
|
exports.RGBToHex = function(red,green,blue) {
|
|
return "#" + ((1 << 24) + (red << 16) + (green << 8) + blue).toString(16).slice(1);
|
|
};
|
|
|
|
/**
|
|
* 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.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 (var 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 in a sorted list. If we find a visible item, the code that uses
|
|
* this function will then iterate in both directions over this sorted list to find all visible items.
|
|
*
|
|
* @param {Item[]} orderedItems | Items ordered by start
|
|
* @param {function} searchFunction | -1 is lower, 0 is found, 1 is higher
|
|
* @param {String} field
|
|
* @param {String} field2
|
|
* @returns {number}
|
|
* @private
|
|
*/
|
|
exports.binarySearchCustom = function(orderedItems, searchFunction, field, field2) {
|
|
var maxIterations = 10000;
|
|
var iteration = 0;
|
|
var low = 0;
|
|
var high = orderedItems.length - 1;
|
|
|
|
while (low <= high && iteration < maxIterations) {
|
|
var middle = Math.floor((low + high) / 2);
|
|
|
|
var item = orderedItems[middle];
|
|
var value = (field2 === undefined) ? item[field] : item[field][field2];
|
|
|
|
var searchResult = searchFunction(value);
|
|
if (searchResult == 0) { // jihaa, found a visible item!
|
|
return middle;
|
|
}
|
|
else if (searchResult == -1) { // it is too small --> increase low
|
|
low = middle + 1;
|
|
}
|
|
else { // it is too big --> decrease high
|
|
high = middle - 1;
|
|
}
|
|
|
|
iteration++;
|
|
}
|
|
|
|
return -1;
|
|
};
|
|
|
|
/**
|
|
* This function does a binary search for a specific value in a sorted array. If it does not exist but is in between of
|
|
* two values, we return either the one before or the one after, depending on user input
|
|
* If it is found, we return the index, else -1.
|
|
*
|
|
* @param {Array} orderedItems
|
|
* @param {{start: number, end: number}} target
|
|
* @param {String} field
|
|
* @param {String} sidePreference 'before' or 'after'
|
|
* @returns {number}
|
|
* @private
|
|
*/
|
|
exports.binarySearchValue = function(orderedItems, target, field, sidePreference) {
|
|
var maxIterations = 10000;
|
|
var iteration = 0;
|
|
var low = 0;
|
|
var high = orderedItems.length - 1;
|
|
var prevValue, value, nextValue, middle;
|
|
|
|
while (low <= high && iteration < maxIterations) {
|
|
// get a new guess
|
|
middle = Math.floor(0.5*(high+low));
|
|
prevValue = orderedItems[Math.max(0,middle - 1)][field];
|
|
value = orderedItems[middle][field];
|
|
nextValue = orderedItems[Math.min(orderedItems.length-1,middle + 1)][field];
|
|
|
|
if (value == target) { // we found the target
|
|
return middle;
|
|
}
|
|
else if (prevValue < target && value > target) { // target is in between of the previous and the current
|
|
return sidePreference == 'before' ? Math.max(0,middle - 1) : middle;
|
|
}
|
|
else if (value < target && nextValue > target) { // target is in between of the current and the next
|
|
return sidePreference == 'before' ? middle : Math.min(orderedItems.length-1,middle + 1);
|
|
}
|
|
else { // didnt find the target, we need to change our boundaries.
|
|
if (value < target) { // it is too small --> increase low
|
|
low = middle + 1;
|
|
}
|
|
else { // it is too big --> decrease high
|
|
high = middle - 1;
|
|
}
|
|
}
|
|
iteration++;
|
|
}
|
|
|
|
// didnt find anything. Return -1.
|
|
return -1;
|
|
};
|
|
|
|
/**
|
|
* 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
|
|
}
|
|
};
|