797 lines
32 KiB
JavaScript
797 lines
32 KiB
JavaScript
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define([
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'../../Core/ClockRange',
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'../../Core/defined',
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'../../Core/destroyObject',
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'../../Core/DeveloperError',
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'../../Core/JulianDate',
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'../getElement',
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'./TimelineHighlightRange',
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'./TimelineTrack'
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], function(
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ClockRange,
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defined,
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destroyObject,
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DeveloperError,
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JulianDate,
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getElement,
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TimelineHighlightRange,
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TimelineTrack) {
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'use strict';
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var timelineWheelDelta = 1e12;
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var timelineMouseMode = {
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none : 0,
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scrub : 1,
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slide : 2,
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zoom : 3,
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touchOnly : 4
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};
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var timelineTouchMode = {
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none : 0,
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scrub : 1,
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slideZoom : 2,
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singleTap : 3,
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ignore : 4
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};
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var timelineTicScales = [0.001, 0.002, 0.005, 0.01, 0.02, 0.05, 0.1, 0.25, 0.5, 1.0, 2.0, 5.0, 10.0, 15.0, 30.0, 60.0, // 1min
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120.0, // 2min
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300.0, // 5min
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600.0, // 10min
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900.0, // 15min
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1800.0, // 30min
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3600.0, // 1hr
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7200.0, // 2hr
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14400.0, // 4hr
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21600.0, // 6hr
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43200.0, // 12hr
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86400.0, // 24hr
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172800.0, // 2days
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345600.0, // 4days
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604800.0, // 7days
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1296000.0, // 15days
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2592000.0, // 30days
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5184000.0, // 60days
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7776000.0, // 90days
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15552000.0, // 180days
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31536000.0, // 365days
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63072000.0, // 2years
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126144000.0, // 4years
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157680000.0, // 5years
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315360000.0, // 10years
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630720000.0, // 20years
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1261440000.0, // 40years
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1576800000.0, // 50years
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3153600000.0, // 100years
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6307200000.0, // 200years
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12614400000.0, // 400years
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15768000000.0, // 500years
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31536000000.0 // 1000years
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];
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var timelineMonthNames = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
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/**
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* The Timeline is a widget for displaying and controlling the current scene time.
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* @alias Timeline
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* @constructor
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*
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* @param {Element} container The parent HTML container node for this widget.
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* @param {Clock} clock The clock to use.
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*/
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function Timeline(container, clock) {
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//>>includeStart('debug', pragmas.debug);
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if (!defined(container)) {
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throw new DeveloperError('container is required.');
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}
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if (!defined(clock)) {
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throw new DeveloperError('clock is required.');
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}
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//>>includeEnd('debug');
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container = getElement(container);
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/**
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* Gets the parent container.
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* @type {Element}
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*/
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this.container = container;
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var topDiv = document.createElement('div');
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topDiv.className = 'cesium-timeline-main';
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container.appendChild(topDiv);
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this._topDiv = topDiv;
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this._endJulian = undefined;
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this._epochJulian = undefined;
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this._lastXPos = undefined;
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this._scrubElement = undefined;
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this._startJulian = undefined;
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this._timeBarSecondsSpan = undefined;
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this._clock = clock;
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this._scrubJulian = clock.currentTime;
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this._mainTicSpan = -1;
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this._mouseMode = timelineMouseMode.none;
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this._touchMode = timelineTouchMode.none;
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this._touchState = {
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centerX : 0,
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spanX : 0
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};
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this._mouseX = 0;
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this._timelineDrag = 0;
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this._timelineDragLocation = undefined;
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this._lastHeight = undefined;
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this._lastWidth = undefined;
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this._topDiv.innerHTML = '<div class="cesium-timeline-bar"></div><div class="cesium-timeline-trackContainer">' +
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'<canvas class="cesium-timeline-tracks" width="10" height="1">' +
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'</canvas></div><div class="cesium-timeline-needle"></div><span class="cesium-timeline-ruler"></span>';
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this._timeBarEle = this._topDiv.childNodes[0];
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this._trackContainer = this._topDiv.childNodes[1];
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this._trackListEle = this._topDiv.childNodes[1].childNodes[0];
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this._needleEle = this._topDiv.childNodes[2];
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this._rulerEle = this._topDiv.childNodes[3];
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this._context = this._trackListEle.getContext('2d');
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this._trackList = [];
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this._highlightRanges = [];
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this.zoomTo(clock.startTime, clock.stopTime);
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this._onMouseDown = createMouseDownCallback(this);
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this._onMouseUp = createMouseUpCallback(this);
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this._onMouseMove = createMouseMoveCallback(this);
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this._onMouseWheel = createMouseWheelCallback(this);
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this._onTouchStart = createTouchStartCallback(this);
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this._onTouchMove = createTouchMoveCallback(this);
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this._onTouchEnd = createTouchEndCallback(this);
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var timeBarEle = this._timeBarEle;
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document.addEventListener('mouseup', this._onMouseUp, false);
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document.addEventListener('mousemove', this._onMouseMove, false);
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timeBarEle.addEventListener('mousedown', this._onMouseDown, false);
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timeBarEle.addEventListener('DOMMouseScroll', this._onMouseWheel, false); // Mozilla mouse wheel
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timeBarEle.addEventListener('mousewheel', this._onMouseWheel, false);
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timeBarEle.addEventListener('touchstart', this._onTouchStart, false);
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timeBarEle.addEventListener('touchmove', this._onTouchMove, false);
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timeBarEle.addEventListener('touchend', this._onTouchEnd, false);
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timeBarEle.addEventListener('touchcancel', this._onTouchEnd, false);
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this._topDiv.oncontextmenu = function() {
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return false;
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};
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clock.onTick.addEventListener(this.updateFromClock, this);
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this.updateFromClock();
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}
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/**
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* @private
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*/
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Timeline.prototype.addEventListener = function(type, listener, useCapture) {
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this._topDiv.addEventListener(type, listener, useCapture);
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};
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/**
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* @private
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*/
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Timeline.prototype.removeEventListener = function(type, listener, useCapture) {
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this._topDiv.removeEventListener(type, listener, useCapture);
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};
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/**
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* @returns {Boolean} true if the object has been destroyed, false otherwise.
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*/
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Timeline.prototype.isDestroyed = function() {
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return false;
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};
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/**
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* Destroys the widget. Should be called if permanently
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* removing the widget from layout.
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*/
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Timeline.prototype.destroy = function() {
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this._clock.onTick.removeEventListener(this.updateFromClock, this);
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document.removeEventListener('mouseup', this._onMouseUp, false);
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document.removeEventListener('mousemove', this._onMouseMove, false);
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var timeBarEle = this._timeBarEle;
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timeBarEle.removeEventListener('mousedown', this._onMouseDown, false);
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timeBarEle.removeEventListener('DOMMouseScroll', this._onMouseWheel, false); // Mozilla mouse wheel
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timeBarEle.removeEventListener('mousewheel', this._onMouseWheel, false);
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timeBarEle.removeEventListener('touchstart', this._onTouchStart, false);
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timeBarEle.removeEventListener('touchmove', this._onTouchMove, false);
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timeBarEle.removeEventListener('touchend', this._onTouchEnd, false);
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timeBarEle.removeEventListener('touchcancel', this._onTouchEnd, false);
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this.container.removeChild(this._topDiv);
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destroyObject(this);
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};
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/**
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* @private
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*/
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Timeline.prototype.addHighlightRange = function(color, heightInPx, base) {
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var newHighlightRange = new TimelineHighlightRange(color, heightInPx, base);
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this._highlightRanges.push(newHighlightRange);
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this.resize();
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return newHighlightRange;
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};
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/**
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* @private
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*/
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Timeline.prototype.addTrack = function(interval, heightInPx, color, backgroundColor) {
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var newTrack = new TimelineTrack(interval, heightInPx, color, backgroundColor);
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this._trackList.push(newTrack);
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this._lastHeight = undefined;
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this.resize();
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return newTrack;
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};
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/**
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* Sets the view to the provided times.
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*
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* @param {JulianDate} startTime The start time.
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* @param {JulianDate} stopTime The stop time.
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*/
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Timeline.prototype.zoomTo = function(startTime, stopTime) {
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//>>includeStart('debug', pragmas.debug);
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if (!defined(startTime)) {
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throw new DeveloperError('startTime is required.');
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}
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if (!defined(stopTime)) {
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throw new DeveloperError('stopTime is required');
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}
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if (JulianDate.lessThanOrEquals(stopTime, startTime)) {
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throw new DeveloperError('Start time must come before end time.');
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}
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//>>includeEnd('debug');
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this._startJulian = startTime;
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this._endJulian = stopTime;
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this._timeBarSecondsSpan = JulianDate.secondsDifference(stopTime, startTime);
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// If clock is not unbounded, clamp timeline range to clock.
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if (this._clock && (this._clock.clockRange !== ClockRange.UNBOUNDED)) {
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var clockStart = this._clock.startTime;
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var clockEnd = this._clock.stopTime;
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var clockSpan = JulianDate.secondsDifference(clockEnd, clockStart);
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var startOffset = JulianDate.secondsDifference(clockStart, this._startJulian);
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var endOffset = JulianDate.secondsDifference(clockEnd, this._endJulian);
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if (this._timeBarSecondsSpan >= clockSpan) {
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// if new duration longer than clock range duration, clamp to full range.
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this._timeBarSecondsSpan = clockSpan;
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this._startJulian = this._clock.startTime;
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this._endJulian = this._clock.stopTime;
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} else if (startOffset > 0) {
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// if timeline start is before clock start, shift right
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this._endJulian = JulianDate.addSeconds(this._endJulian, startOffset, new JulianDate());
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this._startJulian = clockStart;
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this._timeBarSecondsSpan = JulianDate.secondsDifference(this._endJulian, this._startJulian);
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} else if (endOffset < 0) {
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// if timeline end is after clock end, shift left
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this._startJulian = JulianDate.addSeconds(this._startJulian, endOffset, new JulianDate());
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this._endJulian = clockEnd;
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this._timeBarSecondsSpan = JulianDate.secondsDifference(this._endJulian, this._startJulian);
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}
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}
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this._makeTics();
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var evt = document.createEvent('Event');
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evt.initEvent('setzoom', true, true);
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evt.startJulian = this._startJulian;
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evt.endJulian = this._endJulian;
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evt.epochJulian = this._epochJulian;
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evt.totalSpan = this._timeBarSecondsSpan;
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evt.mainTicSpan = this._mainTicSpan;
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this._topDiv.dispatchEvent(evt);
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};
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/**
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* @private
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*/
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Timeline.prototype.zoomFrom = function(amount) {
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var centerSec = JulianDate.secondsDifference(this._scrubJulian, this._startJulian);
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if ((amount > 1) || (centerSec < 0) || (centerSec > this._timeBarSecondsSpan)) {
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centerSec = this._timeBarSecondsSpan * 0.5;
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} else {
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centerSec += (centerSec - this._timeBarSecondsSpan * 0.5);
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}
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var centerSecFlip = this._timeBarSecondsSpan - centerSec;
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this.zoomTo(JulianDate.addSeconds(this._startJulian, centerSec - (centerSec * amount), new JulianDate()), JulianDate.addSeconds(this._endJulian, (centerSecFlip * amount) - centerSecFlip, new JulianDate()));
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};
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function twoDigits(num) {
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return ((num < 10) ? ('0' + num.toString()) : num.toString());
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}
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/**
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* @private
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*/
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Timeline.prototype.makeLabel = function(time) {
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var gregorian = JulianDate.toGregorianDate(time);
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var millisecond = gregorian.millisecond, millisecondString = ' UTC';
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if ((millisecond > 0) && (this._timeBarSecondsSpan < 3600)) {
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millisecondString = Math.floor(millisecond).toString();
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while (millisecondString.length < 3) {
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millisecondString = '0' + millisecondString;
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}
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millisecondString = '.' + millisecondString;
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}
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return timelineMonthNames[gregorian.month - 1] + ' ' + gregorian.day + ' ' + gregorian.year + ' ' + twoDigits(gregorian.hour) +
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':' + twoDigits(gregorian.minute) + ':' + twoDigits(gregorian.second) + millisecondString;
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};
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/**
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* @private
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*/
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Timeline.prototype.smallestTicInPixels = 7.0;
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/**
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* @private
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*/
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Timeline.prototype._makeTics = function() {
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var timeBar = this._timeBarEle;
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var seconds = JulianDate.secondsDifference(this._scrubJulian, this._startJulian);
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var xPos = Math.round(seconds * this._topDiv.clientWidth / this._timeBarSecondsSpan);
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var scrubX = xPos - 8, tic;
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var widget = this;
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this._needleEle.style.left = xPos.toString() + 'px';
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var tics = '';
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var minimumDuration = 0.01;
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var maximumDuration = 31536000000.0; // ~1000 years
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var epsilon = 1e-10;
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// If time step size is known, enter it here...
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var minSize = 0;
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var duration = this._timeBarSecondsSpan;
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if (duration < minimumDuration) {
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duration = minimumDuration;
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this._timeBarSecondsSpan = minimumDuration;
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this._endJulian = JulianDate.addSeconds(this._startJulian, minimumDuration, new JulianDate());
|
||
|
|
} else if (duration > maximumDuration) {
|
||
|
|
duration = maximumDuration;
|
||
|
|
this._timeBarSecondsSpan = maximumDuration;
|
||
|
|
this._endJulian = JulianDate.addSeconds(this._startJulian, maximumDuration, new JulianDate());
|
||
|
|
}
|
||
|
|
|
||
|
|
var timeBarWidth = this._timeBarEle.clientWidth;
|
||
|
|
if (timeBarWidth < 10) {
|
||
|
|
timeBarWidth = 10;
|
||
|
|
}
|
||
|
|
var startJulian = this._startJulian;
|
||
|
|
|
||
|
|
// epsilonTime: a small fraction of one pixel width of the timeline, measured in seconds.
|
||
|
|
var epsilonTime = Math.min((duration / timeBarWidth) * 1e-5, 0.4);
|
||
|
|
|
||
|
|
// epochJulian: a nearby time to be considered "zero seconds", should be a round-ish number by human standards.
|
||
|
|
var epochJulian;
|
||
|
|
var gregorianDate = JulianDate.toGregorianDate(startJulian);
|
||
|
|
if (duration > 315360000) { // 3650+ days visible, epoch is start of the first visible century.
|
||
|
|
epochJulian = JulianDate.fromDate(new Date(Date.UTC(Math.floor(gregorianDate.year / 100) * 100, 0)));
|
||
|
|
} else if (duration > 31536000) { // 365+ days visible, epoch is start of the first visible decade.
|
||
|
|
epochJulian = JulianDate.fromDate(new Date(Date.UTC(Math.floor(gregorianDate.year / 10) * 10, 0)));
|
||
|
|
} else if (duration > 86400) { // 1+ day(s) visible, epoch is start of the year.
|
||
|
|
epochJulian = JulianDate.fromDate(new Date(Date.UTC(gregorianDate.year, 0)));
|
||
|
|
} else { // Less than a day on timeline, epoch is midnight of the visible day.
|
||
|
|
epochJulian = JulianDate.fromDate(new Date(Date.UTC(gregorianDate.year, gregorianDate.month, gregorianDate.day)));
|
||
|
|
}
|
||
|
|
|
||
|
|
// startTime: Seconds offset of the left side of the timeline from epochJulian.
|
||
|
|
var startTime = JulianDate.secondsDifference(this._startJulian, JulianDate.addSeconds(epochJulian, epsilonTime, new JulianDate()));
|
||
|
|
// endTime: Seconds offset of the right side of the timeline from epochJulian.
|
||
|
|
var endTime = startTime + duration;
|
||
|
|
this._epochJulian = epochJulian;
|
||
|
|
|
||
|
|
function getStartTic(ticScale) {
|
||
|
|
return Math.floor(startTime / ticScale) * ticScale;
|
||
|
|
}
|
||
|
|
|
||
|
|
function getNextTic(tic, ticScale) {
|
||
|
|
return Math.ceil((tic / ticScale) + 0.5) * ticScale;
|
||
|
|
}
|
||
|
|
|
||
|
|
function getAlpha(time) {
|
||
|
|
return (time - startTime) / duration;
|
||
|
|
}
|
||
|
|
|
||
|
|
function remainder(x, y) {
|
||
|
|
//return x % y;
|
||
|
|
return x - (y * Math.round(x / y));
|
||
|
|
}
|
||
|
|
|
||
|
|
// Width in pixels of a typical label, plus padding
|
||
|
|
this._rulerEle.innerHTML = this.makeLabel(JulianDate.addSeconds(this._endJulian, -minimumDuration, new JulianDate()));
|
||
|
|
var sampleWidth = this._rulerEle.offsetWidth + 20;
|
||
|
|
if (sampleWidth < 30) {
|
||
|
|
// Workaround an apparent IE bug with measuring the width after going full-screen from inside an iframe.
|
||
|
|
sampleWidth = 180;
|
||
|
|
}
|
||
|
|
|
||
|
|
var origMinSize = minSize;
|
||
|
|
minSize -= epsilon;
|
||
|
|
|
||
|
|
var renderState = {
|
||
|
|
startTime : startTime,
|
||
|
|
startJulian : startJulian,
|
||
|
|
epochJulian : epochJulian,
|
||
|
|
duration : duration,
|
||
|
|
timeBarWidth : timeBarWidth,
|
||
|
|
getAlpha : getAlpha
|
||
|
|
};
|
||
|
|
this._highlightRanges.forEach(function(highlightRange) {
|
||
|
|
tics += highlightRange.render(renderState);
|
||
|
|
});
|
||
|
|
|
||
|
|
// Calculate tic mark label spacing in the TimeBar.
|
||
|
|
var mainTic = 0.0, subTic = 0.0, tinyTic = 0.0;
|
||
|
|
// Ideal labeled tic as percentage of zoom interval
|
||
|
|
var idealTic = sampleWidth / timeBarWidth;
|
||
|
|
if (idealTic > 1.0) {
|
||
|
|
// Clamp to width of window, for thin windows.
|
||
|
|
idealTic = 1.0;
|
||
|
|
}
|
||
|
|
// Ideal labeled tic size in seconds
|
||
|
|
idealTic *= this._timeBarSecondsSpan;
|
||
|
|
var ticIndex = -1, smallestIndex = -1;
|
||
|
|
|
||
|
|
var i, ticScaleLen = timelineTicScales.length;
|
||
|
|
for (i = 0; i < ticScaleLen; ++i) {
|
||
|
|
var sc = timelineTicScales[i];
|
||
|
|
++ticIndex;
|
||
|
|
mainTic = sc;
|
||
|
|
// Find acceptable main tic size not smaller than ideal size.
|
||
|
|
if ((sc > idealTic) && (sc > minSize)) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if ((smallestIndex < 0) && ((timeBarWidth * (sc / this._timeBarSecondsSpan)) >= this.smallestTicInPixels)) {
|
||
|
|
smallestIndex = ticIndex;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (ticIndex > 0) {
|
||
|
|
while (ticIndex > 0) // Compute sub-tic size that evenly divides main tic.
|
||
|
|
{
|
||
|
|
--ticIndex;
|
||
|
|
if (Math.abs(remainder(mainTic, timelineTicScales[ticIndex])) < 0.00001) {
|
||
|
|
if (timelineTicScales[ticIndex] >= minSize) {
|
||
|
|
subTic = timelineTicScales[ticIndex];
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (smallestIndex >= 0) {
|
||
|
|
while (smallestIndex < ticIndex) // Compute tiny tic size that evenly divides sub-tic.
|
||
|
|
{
|
||
|
|
if ((Math.abs(remainder(subTic, timelineTicScales[smallestIndex])) < 0.00001) && (timelineTicScales[smallestIndex] >= minSize)) {
|
||
|
|
tinyTic = timelineTicScales[smallestIndex];
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
++smallestIndex;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
minSize = origMinSize;
|
||
|
|
if ((minSize > epsilon) && (tinyTic < 0.00001) && (Math.abs(minSize - mainTic) > epsilon)) {
|
||
|
|
tinyTic = minSize;
|
||
|
|
if (minSize <= (mainTic + epsilon)) {
|
||
|
|
subTic = 0.0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var lastTextLeft = -999999, textWidth;
|
||
|
|
if ((timeBarWidth * (tinyTic / this._timeBarSecondsSpan)) >= 3.0) {
|
||
|
|
for (tic = getStartTic(tinyTic); tic <= endTime; tic = getNextTic(tic, tinyTic)) {
|
||
|
|
tics += '<span class="cesium-timeline-ticTiny" style="left: ' + Math.round(timeBarWidth * getAlpha(tic)).toString() + 'px;"></span>';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ((timeBarWidth * (subTic / this._timeBarSecondsSpan)) >= 3.0) {
|
||
|
|
for (tic = getStartTic(subTic); tic <= endTime; tic = getNextTic(tic, subTic)) {
|
||
|
|
tics += '<span class="cesium-timeline-ticSub" style="left: ' + Math.round(timeBarWidth * getAlpha(tic)).toString() + 'px;"></span>';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ((timeBarWidth * (mainTic / this._timeBarSecondsSpan)) >= 2.0) {
|
||
|
|
this._mainTicSpan = mainTic;
|
||
|
|
endTime += mainTic;
|
||
|
|
tic = getStartTic(mainTic);
|
||
|
|
var leapSecond = JulianDate.computeTaiMinusUtc(epochJulian);
|
||
|
|
while (tic <= endTime) {
|
||
|
|
var ticTime = JulianDate.addSeconds(startJulian, tic - startTime, new JulianDate());
|
||
|
|
if (mainTic > 2.1) {
|
||
|
|
var ticLeap = JulianDate.computeTaiMinusUtc(ticTime);
|
||
|
|
if (Math.abs(ticLeap - leapSecond) > 0.1) {
|
||
|
|
tic += (ticLeap - leapSecond);
|
||
|
|
ticTime = JulianDate.addSeconds(startJulian, tic - startTime, new JulianDate());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
var ticLeft = Math.round(timeBarWidth * getAlpha(tic));
|
||
|
|
var ticLabel = this.makeLabel(ticTime);
|
||
|
|
this._rulerEle.innerHTML = ticLabel;
|
||
|
|
textWidth = this._rulerEle.offsetWidth;
|
||
|
|
if (textWidth < 10) {
|
||
|
|
// IE iframe fullscreen sampleWidth workaround, continued.
|
||
|
|
textWidth = sampleWidth;
|
||
|
|
}
|
||
|
|
var labelLeft = ticLeft - ((textWidth / 2) - 1);
|
||
|
|
if (labelLeft > lastTextLeft) {
|
||
|
|
lastTextLeft = labelLeft + textWidth + 5;
|
||
|
|
tics += '<span class="cesium-timeline-ticMain" style="left: ' + ticLeft.toString() + 'px;"></span>' + '<span class="cesium-timeline-ticLabel" style="left: ' + labelLeft.toString() +
|
||
|
|
'px;">' + ticLabel + '</span>';
|
||
|
|
} else {
|
||
|
|
tics += '<span class="cesium-timeline-ticSub" style="left: ' + ticLeft.toString() + 'px;"></span>';
|
||
|
|
}
|
||
|
|
tic = getNextTic(tic, mainTic);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
this._mainTicSpan = -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
tics += '<span class="cesium-timeline-icon16" style="left:' + scrubX + 'px;bottom:0;background-position: 0 0;"></span>';
|
||
|
|
timeBar.innerHTML = tics;
|
||
|
|
this._scrubElement = timeBar.lastChild;
|
||
|
|
|
||
|
|
// Clear track canvas.
|
||
|
|
this._context.clearRect(0, 0, this._trackListEle.width, this._trackListEle.height);
|
||
|
|
|
||
|
|
renderState.y = 0;
|
||
|
|
this._trackList.forEach(function(track) {
|
||
|
|
track.render(widget._context, renderState);
|
||
|
|
renderState.y += track.height;
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
Timeline.prototype.updateFromClock = function() {
|
||
|
|
this._scrubJulian = this._clock.currentTime;
|
||
|
|
var scrubElement = this._scrubElement;
|
||
|
|
if (defined(this._scrubElement)) {
|
||
|
|
var seconds = JulianDate.secondsDifference(this._scrubJulian, this._startJulian);
|
||
|
|
var xPos = Math.round(seconds * this._topDiv.clientWidth / this._timeBarSecondsSpan);
|
||
|
|
|
||
|
|
if (this._lastXPos !== xPos) {
|
||
|
|
this._lastXPos = xPos;
|
||
|
|
|
||
|
|
scrubElement.style.left = (xPos - 8) + 'px';
|
||
|
|
this._needleEle.style.left = xPos + 'px';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (defined(this._timelineDragLocation)) {
|
||
|
|
this._setTimeBarTime(this._timelineDragLocation, this._timelineDragLocation * this._timeBarSecondsSpan / this._topDiv.clientWidth);
|
||
|
|
this.zoomTo(JulianDate.addSeconds(this._startJulian, this._timelineDrag, new JulianDate()), JulianDate.addSeconds(this._endJulian, this._timelineDrag, new JulianDate()));
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
Timeline.prototype._setTimeBarTime = function(xPos, seconds) {
|
||
|
|
xPos = Math.round(xPos);
|
||
|
|
this._scrubJulian = JulianDate.addSeconds(this._startJulian, seconds, new JulianDate());
|
||
|
|
if (this._scrubElement) {
|
||
|
|
var scrubX = xPos - 8;
|
||
|
|
this._scrubElement.style.left = scrubX.toString() + 'px';
|
||
|
|
this._needleEle.style.left = xPos.toString() + 'px';
|
||
|
|
}
|
||
|
|
|
||
|
|
var evt = document.createEvent('Event');
|
||
|
|
evt.initEvent('settime', true, true);
|
||
|
|
evt.clientX = xPos;
|
||
|
|
evt.timeSeconds = seconds;
|
||
|
|
evt.timeJulian = this._scrubJulian;
|
||
|
|
evt.clock = this._clock;
|
||
|
|
this._topDiv.dispatchEvent(evt);
|
||
|
|
};
|
||
|
|
|
||
|
|
function createMouseDownCallback(timeline) {
|
||
|
|
return function(e) {
|
||
|
|
if (timeline._mouseMode !== timelineMouseMode.touchOnly) {
|
||
|
|
if (e.button === 0) {
|
||
|
|
timeline._mouseMode = timelineMouseMode.scrub;
|
||
|
|
if (timeline._scrubElement) {
|
||
|
|
timeline._scrubElement.style.backgroundPosition = '-16px 0';
|
||
|
|
}
|
||
|
|
timeline._onMouseMove(e);
|
||
|
|
} else {
|
||
|
|
timeline._mouseX = e.clientX;
|
||
|
|
if (e.button === 2) {
|
||
|
|
timeline._mouseMode = timelineMouseMode.zoom;
|
||
|
|
} else {
|
||
|
|
timeline._mouseMode = timelineMouseMode.slide;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
e.preventDefault();
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
function createMouseUpCallback(timeline) {
|
||
|
|
return function(e) {
|
||
|
|
timeline._mouseMode = timelineMouseMode.none;
|
||
|
|
if (timeline._scrubElement) {
|
||
|
|
timeline._scrubElement.style.backgroundPosition = '0 0';
|
||
|
|
}
|
||
|
|
timeline._timelineDrag = 0;
|
||
|
|
timeline._timelineDragLocation = undefined;
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
function createMouseMoveCallback(timeline) {
|
||
|
|
return function(e) {
|
||
|
|
var dx;
|
||
|
|
if (timeline._mouseMode === timelineMouseMode.scrub) {
|
||
|
|
e.preventDefault();
|
||
|
|
var x = e.clientX - timeline._topDiv.getBoundingClientRect().left;
|
||
|
|
|
||
|
|
if (x < 0) {
|
||
|
|
timeline._timelineDragLocation = 0;
|
||
|
|
timeline._timelineDrag = -0.01 * timeline._timeBarSecondsSpan;
|
||
|
|
} else if (x > timeline._topDiv.clientWidth) {
|
||
|
|
timeline._timelineDragLocation = timeline._topDiv.clientWidth;
|
||
|
|
timeline._timelineDrag = 0.01 * timeline._timeBarSecondsSpan;
|
||
|
|
} else {
|
||
|
|
timeline._timelineDragLocation = undefined;
|
||
|
|
timeline._setTimeBarTime(x, x * timeline._timeBarSecondsSpan / timeline._topDiv.clientWidth);
|
||
|
|
}
|
||
|
|
|
||
|
|
} else if (timeline._mouseMode === timelineMouseMode.slide) {
|
||
|
|
dx = timeline._mouseX - e.clientX;
|
||
|
|
timeline._mouseX = e.clientX;
|
||
|
|
if (dx !== 0) {
|
||
|
|
var dsec = dx * timeline._timeBarSecondsSpan / timeline._topDiv.clientWidth;
|
||
|
|
timeline.zoomTo(JulianDate.addSeconds(timeline._startJulian, dsec, new JulianDate()), JulianDate.addSeconds(timeline._endJulian, dsec, new JulianDate()));
|
||
|
|
}
|
||
|
|
} else if (timeline._mouseMode === timelineMouseMode.zoom) {
|
||
|
|
dx = timeline._mouseX - e.clientX;
|
||
|
|
timeline._mouseX = e.clientX;
|
||
|
|
if (dx !== 0) {
|
||
|
|
timeline.zoomFrom(Math.pow(1.01, dx));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
function createMouseWheelCallback(timeline) {
|
||
|
|
return function(e) {
|
||
|
|
var dy = e.wheelDeltaY || e.wheelDelta || (-e.detail);
|
||
|
|
timelineWheelDelta = Math.max(Math.min(Math.abs(dy), timelineWheelDelta), 1);
|
||
|
|
dy /= timelineWheelDelta;
|
||
|
|
timeline.zoomFrom(Math.pow(1.05, -dy));
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
function createTouchStartCallback(timeline) {
|
||
|
|
return function(e) {
|
||
|
|
var len = e.touches.length, seconds, xPos, leftX = timeline._topDiv.getBoundingClientRect().left;
|
||
|
|
e.preventDefault();
|
||
|
|
timeline._mouseMode = timelineMouseMode.touchOnly;
|
||
|
|
if (len === 1) {
|
||
|
|
seconds = JulianDate.secondsDifference(timeline._scrubJulian, timeline._startJulian);
|
||
|
|
xPos = Math.round(seconds * timeline._topDiv.clientWidth / timeline._timeBarSecondsSpan + leftX);
|
||
|
|
if (Math.abs(e.touches[0].clientX - xPos) < 50) {
|
||
|
|
timeline._touchMode = timelineTouchMode.scrub;
|
||
|
|
if (timeline._scrubElement) {
|
||
|
|
timeline._scrubElement.style.backgroundPosition = (len === 1) ? '-16px 0' : '0 0';
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
timeline._touchMode = timelineTouchMode.singleTap;
|
||
|
|
timeline._touchState.centerX = e.touches[0].clientX - leftX;
|
||
|
|
}
|
||
|
|
} else if (len === 2) {
|
||
|
|
timeline._touchMode = timelineTouchMode.slideZoom;
|
||
|
|
timeline._touchState.centerX = (e.touches[0].clientX + e.touches[1].clientX) * 0.5 - leftX;
|
||
|
|
timeline._touchState.spanX = Math.abs(e.touches[0].clientX - e.touches[1].clientX);
|
||
|
|
} else {
|
||
|
|
timeline._touchMode = timelineTouchMode.ignore;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
function createTouchEndCallback(timeline) {
|
||
|
|
return function(e) {
|
||
|
|
var len = e.touches.length, leftX = timeline._topDiv.getBoundingClientRect().left;
|
||
|
|
if (timeline._touchMode === timelineTouchMode.singleTap) {
|
||
|
|
timeline._touchMode = timelineTouchMode.scrub;
|
||
|
|
timeline._onTouchMove(e);
|
||
|
|
} else if (timeline._touchMode === timelineTouchMode.scrub) {
|
||
|
|
timeline._onTouchMove(e);
|
||
|
|
}
|
||
|
|
timeline._mouseMode = timelineMouseMode.touchOnly;
|
||
|
|
if (len !== 1) {
|
||
|
|
timeline._touchMode = (len > 0) ? timelineTouchMode.ignore : timelineTouchMode.none;
|
||
|
|
} else if (timeline._touchMode === timelineTouchMode.slideZoom) {
|
||
|
|
timeline._touchState.centerX = e.touches[0].clientX - leftX;
|
||
|
|
}
|
||
|
|
if (timeline._scrubElement) {
|
||
|
|
timeline._scrubElement.style.backgroundPosition = '0 0';
|
||
|
|
}
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
function createTouchMoveCallback(timeline) {
|
||
|
|
return function(e) {
|
||
|
|
var dx, x, len, newCenter, newSpan, newStartTime, zoom = 1, leftX = timeline._topDiv.getBoundingClientRect().left;
|
||
|
|
if (timeline._touchMode === timelineTouchMode.singleTap) {
|
||
|
|
timeline._touchMode = timelineTouchMode.slideZoom;
|
||
|
|
}
|
||
|
|
timeline._mouseMode = timelineMouseMode.touchOnly;
|
||
|
|
if (timeline._touchMode === timelineTouchMode.scrub) {
|
||
|
|
e.preventDefault();
|
||
|
|
if (e.changedTouches.length === 1) {
|
||
|
|
x = e.changedTouches[0].clientX - leftX;
|
||
|
|
if ((x >= 0) && (x <= timeline._topDiv.clientWidth)) {
|
||
|
|
timeline._setTimeBarTime(x, x * timeline._timeBarSecondsSpan / timeline._topDiv.clientWidth);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else if (timeline._touchMode === timelineTouchMode.slideZoom) {
|
||
|
|
len = e.touches.length;
|
||
|
|
if (len === 2) {
|
||
|
|
newCenter = (e.touches[0].clientX + e.touches[1].clientX) * 0.5 - leftX;
|
||
|
|
newSpan = Math.abs(e.touches[0].clientX - e.touches[1].clientX);
|
||
|
|
} else if (len === 1) {
|
||
|
|
newCenter = e.touches[0].clientX - leftX;
|
||
|
|
newSpan = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (defined(newCenter)) {
|
||
|
|
if ((newSpan > 0) && (timeline._touchState.spanX > 0)) {
|
||
|
|
// Zoom and slide
|
||
|
|
zoom = (timeline._touchState.spanX / newSpan);
|
||
|
|
newStartTime = JulianDate.addSeconds(timeline._startJulian, ((timeline._touchState.centerX * timeline._timeBarSecondsSpan) - (newCenter * timeline._timeBarSecondsSpan * zoom)) / timeline._topDiv.clientWidth, new JulianDate());
|
||
|
|
} else {
|
||
|
|
// Slide to newCenter
|
||
|
|
dx = timeline._touchState.centerX - newCenter;
|
||
|
|
newStartTime = JulianDate.addSeconds(timeline._startJulian, dx * timeline._timeBarSecondsSpan / timeline._topDiv.clientWidth, new JulianDate());
|
||
|
|
}
|
||
|
|
|
||
|
|
timeline.zoomTo(newStartTime, JulianDate.addSeconds(newStartTime, timeline._timeBarSecondsSpan * zoom, new JulianDate()));
|
||
|
|
timeline._touchState.centerX = newCenter;
|
||
|
|
timeline._touchState.spanX = newSpan;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Resizes the widget to match the container size.
|
||
|
|
*/
|
||
|
|
Timeline.prototype.resize = function() {
|
||
|
|
var width = this.container.clientWidth;
|
||
|
|
var height = this.container.clientHeight;
|
||
|
|
|
||
|
|
if (width === this._lastWidth && height === this._lastHeight) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
this._trackContainer.style.height = height + 'px';
|
||
|
|
|
||
|
|
var trackListHeight = 1;
|
||
|
|
this._trackList.forEach(function(track) {
|
||
|
|
trackListHeight += track.height;
|
||
|
|
});
|
||
|
|
this._trackListEle.style.height = trackListHeight.toString() + 'px';
|
||
|
|
this._trackListEle.width = this._trackListEle.clientWidth;
|
||
|
|
this._trackListEle.height = trackListHeight;
|
||
|
|
this._makeTics();
|
||
|
|
|
||
|
|
this._lastXPos = undefined;
|
||
|
|
this._lastWidth = width;
|
||
|
|
this._lastHeight = height;
|
||
|
|
};
|
||
|
|
|
||
|
|
return Timeline;
|
||
|
|
});
|