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786 lines
24 KiB
786 lines
24 KiB
var moment = require('../module/moment');
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var util = require('../util');
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var DataSet = require('../DataSet');
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var DataView = require('../DataView');
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var Range = require('./Range');
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var Core = require('./Core');
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var TimeAxis = require('./component/TimeAxis');
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var CurrentTime = require('./component/CurrentTime');
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var CustomTime = require('./component/CustomTime');
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var ItemSet = require('./component/ItemSet');
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var printStyle = require('../shared/Validator').printStyle;
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var allOptions = require('./optionsTimeline').allOptions;
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var configureOptions = require('./optionsTimeline').configureOptions;
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var Configurator = require('../shared/Configurator').default;
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var Validator = require('../shared/Validator').default;
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/**
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* Create a timeline visualization
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* @param {HTMLElement} container
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* @param {vis.DataSet | vis.DataView | Array} [items]
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* @param {vis.DataSet | vis.DataView | Array} [groups]
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* @param {Object} [options] See Timeline.setOptions for the available options.
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* @constructor Timeline
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* @extends Core
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*/
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function Timeline (container, items, groups, options) {
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this.initTime = new Date();
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this.itemsDone = false;
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if (!(this instanceof Timeline)) {
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throw new SyntaxError('Constructor must be called with the new operator');
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}
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// if the third element is options, the forth is groups (optionally);
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if (!(Array.isArray(groups) || groups instanceof DataSet || groups instanceof DataView) && groups instanceof Object) {
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var forthArgument = options;
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options = groups;
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groups = forthArgument;
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}
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// TODO: REMOVE THIS in the next MAJOR release
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// see https://github.com/almende/vis/issues/2511
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if (options && options.throttleRedraw) {
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console.warn("Timeline option \"throttleRedraw\" is DEPRICATED and no longer supported. It will be removed in the next MAJOR release.");
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}
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var me = this;
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this.defaultOptions = {
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start: null,
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end: null,
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autoResize: true,
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orientation: {
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axis: 'bottom', // axis orientation: 'bottom', 'top', or 'both'
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item: 'bottom' // not relevant
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},
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moment: moment,
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width: null,
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height: null,
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maxHeight: null,
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minHeight: null,
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};
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this.options = util.deepExtend({}, this.defaultOptions);
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// Create the DOM, props, and emitter
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this._create(container);
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if (!options || (options && typeof options.rtl == "undefined")) {
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this.dom.root.style.visibility = 'hidden';
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var directionFromDom, domNode = this.dom.root;
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while (!directionFromDom && domNode) {
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directionFromDom = window.getComputedStyle(domNode, null).direction;
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domNode = domNode.parentElement;
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}
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this.options.rtl = (directionFromDom && (directionFromDom.toLowerCase() == "rtl"));
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} else {
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this.options.rtl = options.rtl;
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}
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this.options.rollingMode = options && options.rollingMode;
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this.options.onInitialDrawComplete = options && options.onInitialDrawComplete;
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this.options.onTimeout = options && options.onTimeout;
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this.options.loadingScreenTemplate = options && options.loadingScreenTemplate;
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// Prepare loading screen
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var loadingScreenFragment = document.createElement('div');
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if (this.options.loadingScreenTemplate) {
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var templateFunction = this.options.loadingScreenTemplate.bind(this);
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var loadingScreen = templateFunction(this.dom.loadingScreen);
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if ((loadingScreen instanceof Object) && !(loadingScreen instanceof Element)) {
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templateFunction(loadingScreenFragment)
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} else {
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if (loadingScreen instanceof Element) {
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loadingScreenFragment.innerHTML = '';
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loadingScreenFragment.appendChild(loadingScreen);
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}
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else if (loadingScreen != undefined) {
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loadingScreenFragment.innerHTML = loadingScreen;
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}
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}
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}
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this.dom.loadingScreen.appendChild(loadingScreenFragment);
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// all components listed here will be repainted automatically
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this.components = [];
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this.body = {
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dom: this.dom,
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domProps: this.props,
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emitter: {
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on: this.on.bind(this),
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off: this.off.bind(this),
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emit: this.emit.bind(this)
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},
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hiddenDates: [],
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util: {
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getScale: function () {
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return me.timeAxis.step.scale;
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},
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getStep: function () {
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return me.timeAxis.step.step;
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},
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toScreen: me._toScreen.bind(me),
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toGlobalScreen: me._toGlobalScreen.bind(me), // this refers to the root.width
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toTime: me._toTime.bind(me),
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toGlobalTime : me._toGlobalTime.bind(me)
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}
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};
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// range
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this.range = new Range(this.body, this.options);
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this.components.push(this.range);
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this.body.range = this.range;
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// time axis
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this.timeAxis = new TimeAxis(this.body, this.options);
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this.timeAxis2 = null; // used in case of orientation option 'both'
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this.components.push(this.timeAxis);
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// current time bar
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this.currentTime = new CurrentTime(this.body, this.options);
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this.components.push(this.currentTime);
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// item set
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this.itemSet = new ItemSet(this.body, this.options);
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this.components.push(this.itemSet);
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this.itemsData = null; // DataSet
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this.groupsData = null; // DataSet
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this.dom.root.onclick = function (event) {
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me.emit('click', me.getEventProperties(event))
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};
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this.dom.root.ondblclick = function (event) {
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me.emit('doubleClick', me.getEventProperties(event))
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};
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this.dom.root.oncontextmenu = function (event) {
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me.emit('contextmenu', me.getEventProperties(event))
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};
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this.dom.root.onmouseover = function (event) {
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me.emit('mouseOver', me.getEventProperties(event))
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};
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if(window.PointerEvent) {
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this.dom.root.onpointerdown = function (event) {
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me.emit('mouseDown', me.getEventProperties(event))
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};
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this.dom.root.onpointermove = function (event) {
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me.emit('mouseMove', me.getEventProperties(event))
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};
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this.dom.root.onpointerup = function (event) {
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me.emit('mouseUp', me.getEventProperties(event))
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};
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} else {
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this.dom.root.onmousemove = function (event) {
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me.emit('mouseMove', me.getEventProperties(event))
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};
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this.dom.root.onmousedown = function (event) {
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me.emit('mouseDown', me.getEventProperties(event))
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};
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this.dom.root.onmouseup = function (event) {
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me.emit('mouseUp', me.getEventProperties(event))
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};
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}
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//Single time autoscale/fit
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this.initialFitDone = false;
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this.on('changed', function (){
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if (me.itemsData == null) return;
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if (!me.initialFitDone || !me.options.rollingMode) {
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me.initialFitDone = true;
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if (me.options.start != undefined || me.options.end != undefined) {
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if (me.options.start == undefined || me.options.end == undefined) {
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var range = me.getItemRange();
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}
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var start = me.options.start != undefined ? me.options.start : range.min;
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var end = me.options.end != undefined ? me.options.end : range.max;
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me.setWindow(start, end, {animation: false});
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} else {
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me.fit({animation: false});
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}
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}
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if (!me.initialDrawDone && (me.initialRangeChangeDone || (!me.options.start && !me.options.end) || me.options.rollingMode)) {
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me.initialDrawDone = true;
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me.itemSet.initialDrawDone = true;
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me.dom.root.style.visibility = 'visible';
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me.dom.loadingScreen.parentNode.removeChild(me.dom.loadingScreen);
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if (me.options.onInitialDrawComplete) {
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setTimeout(() => {
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return me.options.onInitialDrawComplete();
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}, 0)
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}
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}
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});
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this.on('destroyTimeline', () => {
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me.destroy()
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});
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// apply options
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if (options) {
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this.setOptions(options);
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}
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// IMPORTANT: THIS HAPPENS BEFORE SET ITEMS!
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if (groups) {
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this.setGroups(groups);
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}
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// create itemset
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if (items) {
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this.setItems(items);
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}
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// draw for the first time
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this._redraw();
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}
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// Extend the functionality from Core
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Timeline.prototype = new Core();
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/**
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* Load a configurator
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* @return {Object}
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* @private
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*/
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Timeline.prototype._createConfigurator = function () {
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return new Configurator(this, this.dom.container, configureOptions);
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};
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/**
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* Force a redraw. The size of all items will be recalculated.
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* Can be useful to manually redraw when option autoResize=false and the window
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* has been resized, or when the items CSS has been changed.
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*
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* Note: this function will be overridden on construction with a trottled version
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*/
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Timeline.prototype.redraw = function() {
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this.itemSet && this.itemSet.markDirty({refreshItems: true});
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this._redraw();
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};
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Timeline.prototype.setOptions = function (options) {
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// validate options
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let errorFound = Validator.validate(options, allOptions);
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if (errorFound === true) {
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console.log('%cErrors have been found in the supplied options object.', printStyle);
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}
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Core.prototype.setOptions.call(this, options);
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if ('type' in options) {
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if (options.type !== this.options.type) {
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this.options.type = options.type;
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// force recreation of all items
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var itemsData = this.itemsData;
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if (itemsData) {
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var selection = this.getSelection();
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this.setItems(null); // remove all
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this.setItems(itemsData); // add all
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this.setSelection(selection); // restore selection
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}
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}
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}
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};
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/**
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* Set items
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* @param {vis.DataSet | Array | null} items
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*/
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Timeline.prototype.setItems = function(items) {
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this.itemsDone = false;
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// convert to type DataSet when needed
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var newDataSet;
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if (!items) {
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newDataSet = null;
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}
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else if (items instanceof DataSet || items instanceof DataView) {
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newDataSet = items;
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}
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else {
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// turn an array into a dataset
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newDataSet = new DataSet(items, {
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type: {
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start: 'Date',
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end: 'Date'
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}
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});
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}
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// set items
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this.itemsData = newDataSet;
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this.itemSet && this.itemSet.setItems(newDataSet);
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};
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/**
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* Set groups
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* @param {vis.DataSet | Array} groups
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*/
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Timeline.prototype.setGroups = function(groups) {
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// convert to type DataSet when needed
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var newDataSet;
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if (!groups) {
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newDataSet = null;
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}
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else {
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var filter = function(group) {
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return group.visible !== false;
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}
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if (groups instanceof DataSet || groups instanceof DataView) {
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newDataSet = new DataView(groups,{filter: filter});
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}
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else {
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// turn an array into a dataset
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newDataSet = new DataSet(groups.filter(filter));
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}
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}
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this.groupsData = newDataSet;
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this.itemSet.setGroups(newDataSet);
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};
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/**
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* Set both items and groups in one go
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* @param {{items: (Array | vis.DataSet), groups: (Array | vis.DataSet)}} data
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*/
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Timeline.prototype.setData = function (data) {
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if (data && data.groups) {
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this.setGroups(data.groups);
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}
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if (data && data.items) {
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this.setItems(data.items);
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}
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};
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/**
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* Set selected items by their id. Replaces the current selection
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* Unknown id's are silently ignored.
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* @param {string[] | string} [ids] An array with zero or more id's of the items to be
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* selected. If ids is an empty array, all items will be
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* unselected.
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* @param {Object} [options] Available options:
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* `focus: boolean`
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* If true, focus will be set to the selected item(s)
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* `animation: boolean | {duration: number, easingFunction: string}`
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* If true (default), the range is animated
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* smoothly to the new window. An object can be
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* provided to specify duration and easing function.
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* Default duration is 500 ms, and default easing
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* function is 'easeInOutQuad'.
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* Only applicable when option focus is true.
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*/
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Timeline.prototype.setSelection = function(ids, options) {
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this.itemSet && this.itemSet.setSelection(ids);
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if (options && options.focus) {
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this.focus(ids, options);
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}
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};
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/**
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* Get the selected items by their id
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* @return {Array} ids The ids of the selected items
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*/
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Timeline.prototype.getSelection = function() {
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return this.itemSet && this.itemSet.getSelection() || [];
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};
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/**
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* Adjust the visible window such that the selected item (or multiple items)
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* are centered on screen.
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* @param {string | String[]} id An item id or array with item ids
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* @param {Object} [options] Available options:
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* `animation: boolean | {duration: number, easingFunction: string}`
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* If true (default), the range is animated
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* smoothly to the new window. An object can be
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* provided to specify duration and easing function.
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* Default duration is 500 ms, and default easing
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* function is 'easeInOutQuad'.
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*/
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Timeline.prototype.focus = function(id, options) {
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if (!this.itemsData || id == undefined) return;
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var ids = Array.isArray(id) ? id : [id];
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// get the specified item(s)
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var itemsData = this.itemsData.getDataSet().get(ids, {
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type: {
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start: 'Date',
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end: 'Date'
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}
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});
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// calculate minimum start and maximum end of specified items
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var start = null;
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var end = null;
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itemsData.forEach(function (itemData) {
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var s = itemData.start.valueOf();
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var e = 'end' in itemData ? itemData.end.valueOf() : itemData.start.valueOf();
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if (start === null || s < start) {
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start = s;
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}
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if (end === null || e > end) {
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end = e;
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}
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});
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if (start !== null && end !== null) {
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var me = this;
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// Use the first item for the vertical focus
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var item = this.itemSet.items[ids[0]];
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var startPos = this._getScrollTop() * -1;
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var initialVerticalScroll = null;
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// Setup a handler for each frame of the vertical scroll
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var verticalAnimationFrame = function(ease, willDraw, done) {
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var verticalScroll = getItemVerticalScroll(me, item);
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if(!initialVerticalScroll) {
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initialVerticalScroll = verticalScroll;
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}
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if(initialVerticalScroll.itemTop == verticalScroll.itemTop && !initialVerticalScroll.shouldScroll) {
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return; // We don't need to scroll, so do nothing
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}
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else if(initialVerticalScroll.itemTop != verticalScroll.itemTop && verticalScroll.shouldScroll) {
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// The redraw shifted elements, so reset the animation to correct
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initialVerticalScroll = verticalScroll;
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startPos = me._getScrollTop() * -1;
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}
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var from = startPos;
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var to = initialVerticalScroll.scrollOffset;
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var scrollTop = done ? to : (from + (to - from) * ease);
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me._setScrollTop(-scrollTop);
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if(!willDraw) {
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me._redraw();
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}
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};
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// Enforces the final vertical scroll position
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var setFinalVerticalPosition = function() {
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var finalVerticalScroll = getItemVerticalScroll(me, item);
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if (finalVerticalScroll.shouldScroll && finalVerticalScroll.itemTop != initialVerticalScroll.itemTop) {
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me._setScrollTop(-finalVerticalScroll.scrollOffset);
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me._redraw();
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}
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};
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// Perform one last check at the end to make sure the final vertical
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// position is correct
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var finalVerticalCallback = function() {
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// Double check we ended at the proper scroll position
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setFinalVerticalPosition();
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// Let the redraw settle and finalize the position.
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setTimeout(setFinalVerticalPosition, 100);
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};
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|
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// calculate the new middle and interval for the window
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var middle = (start + end) / 2;
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var interval = Math.max(this.range.end - this.range.start, (end - start) * 1.1);
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var animation = options && options.animation !== undefined ? options.animation : true;
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if (!animation) {
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// We aren't animating so set a default so that the final callback forces the vertical location
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initialVerticalScroll = { shouldScroll: false, scrollOffset: -1, itemTop: -1 };
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}
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this.range.setRange(middle - interval / 2, middle + interval / 2, { animation: animation }, finalVerticalCallback, verticalAnimationFrame);
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}
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};
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|
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/**
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* Set Timeline window such that it fits all items
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|
* @param {Object} [options] Available options:
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* `animation: boolean | {duration: number, easingFunction: string}`
|
|
* If true (default), the range is animated
|
|
* smoothly to the new window. An object can be
|
|
* provided to specify duration and easing function.
|
|
* Default duration is 500 ms, and default easing
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|
* function is 'easeInOutQuad'.
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|
* @param {function} [callback]
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*/
|
|
Timeline.prototype.fit = function (options, callback) {
|
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var animation = (options && options.animation !== undefined) ? options.animation : true;
|
|
var range;
|
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var dataset = this.itemsData && this.itemsData.getDataSet();
|
|
if (dataset.length === 1 && dataset.get()[0].end === undefined) {
|
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// a single item -> don't fit, just show a range around the item from -4 to +3 days
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range = this.getDataRange();
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this.moveTo(range.min.valueOf(), {animation}, callback);
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}
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else {
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// exactly fit the items (plus a small margin)
|
|
range = this.getItemRange();
|
|
this.range.setRange(range.min, range.max, { animation: animation }, callback);
|
|
}
|
|
};
|
|
|
|
/**
|
|
*
|
|
* @param {vis.Item} item
|
|
* @returns {number}
|
|
*/
|
|
function getStart(item) {
|
|
return util.convert(item.data.start, 'Date').valueOf()
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param {vis.Item} item
|
|
* @returns {number}
|
|
*/
|
|
function getEnd(item) {
|
|
var end = item.data.end != undefined ? item.data.end : item.data.start;
|
|
return util.convert(end, 'Date').valueOf();
|
|
}
|
|
|
|
/**
|
|
* @param {vis.Timeline} timeline
|
|
* @param {vis.Item} item
|
|
* @return {{shouldScroll: bool, scrollOffset: number, itemTop: number}}
|
|
*/
|
|
function getItemVerticalScroll(timeline, item) {
|
|
var leftHeight = timeline.props.leftContainer.height;
|
|
var contentHeight = timeline.props.left.height;
|
|
|
|
var group = item.parent;
|
|
var offset = group.top;
|
|
var shouldScroll = true;
|
|
var orientation = timeline.timeAxis.options.orientation.axis;
|
|
|
|
var itemTop = function () {
|
|
if (orientation == "bottom") {
|
|
return group.height - item.top - item.height;
|
|
}
|
|
else {
|
|
return item.top;
|
|
}
|
|
};
|
|
|
|
var currentScrollHeight = timeline._getScrollTop() * -1;
|
|
var targetOffset = offset + itemTop();
|
|
var height = item.height;
|
|
|
|
if (targetOffset < currentScrollHeight) {
|
|
if (offset + leftHeight <= offset + itemTop() + height) {
|
|
offset += itemTop() - timeline.itemSet.options.margin.item.vertical;
|
|
}
|
|
}
|
|
else if (targetOffset + height > currentScrollHeight + leftHeight) {
|
|
offset += itemTop() + height - leftHeight + timeline.itemSet.options.margin.item.vertical;
|
|
}
|
|
else {
|
|
shouldScroll = false;
|
|
}
|
|
|
|
offset = Math.min(offset, contentHeight - leftHeight);
|
|
|
|
return { shouldScroll: shouldScroll, scrollOffset: offset, itemTop: targetOffset };
|
|
}
|
|
|
|
/**
|
|
* Determine the range of the items, taking into account their actual width
|
|
* and a margin of 10 pixels on both sides.
|
|
*
|
|
* @returns {{min: Date, max: Date}}
|
|
*/
|
|
Timeline.prototype.getItemRange = function () {
|
|
// get a rough approximation for the range based on the items start and end dates
|
|
var range = this.getDataRange();
|
|
var min = range.min !== null ? range.min.valueOf() : null;
|
|
var max = range.max !== null ? range.max.valueOf() : null;
|
|
var minItem = null;
|
|
var maxItem = null;
|
|
|
|
if (min != null && max != null) {
|
|
var interval = (max - min); // ms
|
|
if (interval <= 0) {
|
|
interval = 10;
|
|
}
|
|
var factor = interval / this.props.center.width;
|
|
|
|
var redrawQueue = {};
|
|
var redrawQueueLength = 0;
|
|
|
|
// collect redraw functions
|
|
util.forEach(this.itemSet.items, function (item, key) {
|
|
if (item.groupShowing) {
|
|
var returnQueue = true;
|
|
redrawQueue[key] = item.redraw(returnQueue);
|
|
redrawQueueLength = redrawQueue[key].length;
|
|
}
|
|
})
|
|
|
|
var needRedraw = redrawQueueLength > 0;
|
|
if (needRedraw) {
|
|
// redraw all regular items
|
|
for (var i = 0; i < redrawQueueLength; i++) {
|
|
util.forEach(redrawQueue, function (fns) {
|
|
fns[i]();
|
|
});
|
|
}
|
|
}
|
|
|
|
// calculate the date of the left side and right side of the items given
|
|
util.forEach(this.itemSet.items, function (item) {
|
|
var start = getStart(item);
|
|
var end = getEnd(item);
|
|
var startSide;
|
|
var endSide;
|
|
|
|
if (this.options.rtl) {
|
|
startSide = start - (item.getWidthRight() + 10) * factor;
|
|
endSide = end + (item.getWidthLeft() + 10) * factor;
|
|
} else {
|
|
startSide = start - (item.getWidthLeft() + 10) * factor;
|
|
endSide = end + (item.getWidthRight() + 10) * factor;
|
|
}
|
|
|
|
if (startSide < min) {
|
|
min = startSide;
|
|
minItem = item;
|
|
}
|
|
if (endSide > max) {
|
|
max = endSide;
|
|
maxItem = item;
|
|
}
|
|
}.bind(this));
|
|
|
|
if (minItem && maxItem) {
|
|
var lhs = minItem.getWidthLeft() + 10;
|
|
var rhs = maxItem.getWidthRight() + 10;
|
|
var delta = this.props.center.width - lhs - rhs; // px
|
|
|
|
if (delta > 0) {
|
|
if (this.options.rtl) {
|
|
min = getStart(minItem) - rhs * interval / delta; // ms
|
|
max = getEnd(maxItem) + lhs * interval / delta; // ms
|
|
} else {
|
|
min = getStart(minItem) - lhs * interval / delta; // ms
|
|
max = getEnd(maxItem) + rhs * interval / delta; // ms
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return {
|
|
min: min != null ? new Date(min) : null,
|
|
max: max != null ? new Date(max) : null
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Calculate the data range of the items start and end dates
|
|
* @returns {{min: Date, max: Date}}
|
|
*/
|
|
Timeline.prototype.getDataRange = function() {
|
|
var min = null;
|
|
var max = null;
|
|
|
|
var dataset = this.itemsData && this.itemsData.getDataSet();
|
|
if (dataset) {
|
|
dataset.forEach(function (item) {
|
|
var start = util.convert(item.start, 'Date').valueOf();
|
|
var end = util.convert(item.end != undefined ? item.end : item.start, 'Date').valueOf();
|
|
if (min === null || start < min) {
|
|
min = start;
|
|
}
|
|
if (max === null || end > max) {
|
|
max = end;
|
|
}
|
|
});
|
|
}
|
|
|
|
return {
|
|
min: min != null ? new Date(min) : null,
|
|
max: max != null ? new Date(max) : null
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Generate Timeline related information from an event
|
|
* @param {Event} event
|
|
* @return {Object} An object with related information, like on which area
|
|
* The event happened, whether clicked on an item, etc.
|
|
*/
|
|
Timeline.prototype.getEventProperties = function (event) {
|
|
var clientX = event.center ? event.center.x : event.clientX;
|
|
var clientY = event.center ? event.center.y : event.clientY;
|
|
var x;
|
|
if (this.options.rtl) {
|
|
x = util.getAbsoluteRight(this.dom.centerContainer) - clientX;
|
|
} else {
|
|
x = clientX - util.getAbsoluteLeft(this.dom.centerContainer);
|
|
}
|
|
var y = clientY - util.getAbsoluteTop(this.dom.centerContainer);
|
|
|
|
var item = this.itemSet.itemFromTarget(event);
|
|
var group = this.itemSet.groupFromTarget(event);
|
|
var customTime = CustomTime.customTimeFromTarget(event);
|
|
|
|
var snap = this.itemSet.options.snap || null;
|
|
var scale = this.body.util.getScale();
|
|
var step = this.body.util.getStep();
|
|
var time = this._toTime(x);
|
|
var snappedTime = snap ? snap(time, scale, step) : time;
|
|
|
|
var element = util.getTarget(event);
|
|
var what = null;
|
|
if (item != null) {what = 'item';}
|
|
else if (customTime != null) {what = 'custom-time';}
|
|
else if (util.hasParent(element, this.timeAxis.dom.foreground)) {what = 'axis';}
|
|
else if (this.timeAxis2 && util.hasParent(element, this.timeAxis2.dom.foreground)) {what = 'axis';}
|
|
else if (util.hasParent(element, this.itemSet.dom.labelSet)) {what = 'group-label';}
|
|
else if (util.hasParent(element, this.currentTime.bar)) {what = 'current-time';}
|
|
else if (util.hasParent(element, this.dom.center)) {what = 'background';}
|
|
|
|
return {
|
|
event: event,
|
|
item: item ? item.id : null,
|
|
group: group ? group.groupId : null,
|
|
what: what,
|
|
pageX: event.srcEvent ? event.srcEvent.pageX : event.pageX,
|
|
pageY: event.srcEvent ? event.srcEvent.pageY : event.pageY,
|
|
x: x,
|
|
y: y,
|
|
time: time,
|
|
snappedTime: snappedTime
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Toggle Timeline rolling mode
|
|
*/
|
|
|
|
Timeline.prototype.toggleRollingMode = function () {
|
|
if (this.range.rolling) {
|
|
this.range.stopRolling();
|
|
} else {
|
|
if (this.options.rollingMode == undefined) {
|
|
this.setOptions(this.options)
|
|
}
|
|
this.range.startRolling();
|
|
}
|
|
|
|
}
|
|
|
|
module.exports = Timeline;
|