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103x 103x 103x 93x 93x 93x 103x 1x 74x 74x 74x 74x 74x 74x 74x 1x 88x 88x 88x 88x 88x 88x 88x 88x 88x 88x 88x 88x 88x | import {
ClockRange,
defined,
destroyObject,
DeveloperError,
getElement,
JulianDate,
} from "@cesium/engine";
import TimelineHighlightRange from "./TimelineHighlightRange.js";
import TimelineTrack from "./TimelineTrack.js";
let timelineWheelDelta = 1e12;
const timelineMouseMode = {
none: 0,
scrub: 1,
slide: 2,
zoom: 3,
touchOnly: 4,
};
const timelineTouchMode = {
none: 0,
scrub: 1,
slideZoom: 2,
singleTap: 3,
ignore: 4,
};
const 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
120.0, // 2min
300.0, // 5min
600.0, // 10min
900.0, // 15min
1800.0, // 30min
3600.0, // 1hr
7200.0, // 2hr
14400.0, // 4hr
21600.0, // 6hr
43200.0, // 12hr
86400.0, // 24hr
172800.0, // 2days
345600.0, // 4days
604800.0, // 7days
1296000.0, // 15days
2592000.0, // 30days
5184000.0, // 60days
7776000.0, // 90days
15552000.0, // 180days
31536000.0, // 365days
63072000.0, // 2years
126144000.0, // 4years
157680000.0, // 5years
315360000.0, // 10years
630720000.0, // 20years
1261440000.0, // 40years
1576800000.0, // 50years
3153600000.0, // 100years
6307200000.0, // 200years
12614400000.0, // 400years
15768000000.0, // 500years
31536000000.0, // 1000years
];
const timelineMonthNames = [
"Jan",
"Feb",
"Mar",
"Apr",
"May",
"Jun",
"Jul",
"Aug",
"Sep",
"Oct",
"Nov",
"Dec",
];
/**
* The Timeline is a widget for displaying and controlling the current scene time.
* @alias Timeline
* @constructor
*
* @param {Element} container The parent HTML container node for this widget.
* @param {Clock} clock The clock to use.
*/
function Timeline(container, clock) {
//>>includeStart('debug', pragmas.debug);
Iif (!defined(container)) {
throw new DeveloperError("container is required.");
}
Iif (!defined(clock)) {
throw new DeveloperError("clock is required.");
}
//>>includeEnd('debug');
container = getElement(container);
const ownerDocument = container.ownerDocument;
/**
* Gets the parent container.
* @type {Element}
*/
this.container = container;
const topDiv = ownerDocument.createElement("div");
topDiv.className = "cesium-timeline-main";
container.appendChild(topDiv);
this._topDiv = topDiv;
this._endJulian = undefined;
this._epochJulian = undefined;
this._lastXPos = undefined;
this._scrubElement = undefined;
this._startJulian = undefined;
this._timeBarSecondsSpan = undefined;
this._clock = clock;
this._scrubJulian = clock.currentTime;
this._mainTicSpan = -1;
this._mouseMode = timelineMouseMode.none;
this._touchMode = timelineTouchMode.none;
this._touchState = {
centerX: 0,
spanX: 0,
};
this._mouseX = 0;
this._timelineDrag = 0;
this._timelineDragLocation = undefined;
this._lastHeight = undefined;
this._lastWidth = undefined;
this._topDiv.innerHTML =
'<div class="cesium-timeline-bar"></div><div class="cesium-timeline-trackContainer">' +
'<canvas class="cesium-timeline-tracks" width="10" height="1">' +
'</canvas></div><div class="cesium-timeline-needle"></div><span class="cesium-timeline-ruler"></span>';
this._timeBarEle = this._topDiv.childNodes[0];
this._trackContainer = this._topDiv.childNodes[1];
this._trackListEle = this._topDiv.childNodes[1].childNodes[0];
this._needleEle = this._topDiv.childNodes[2];
this._rulerEle = this._topDiv.childNodes[3];
this._context = this._trackListEle.getContext("2d");
this._trackList = [];
this._highlightRanges = [];
this.zoomTo(clock.startTime, clock.stopTime);
this._onMouseDown = createMouseDownCallback(this);
this._onMouseUp = createMouseUpCallback(this);
this._onMouseMove = createMouseMoveCallback(this);
this._onMouseWheel = createMouseWheelCallback(this);
this._onTouchStart = createTouchStartCallback(this);
this._onTouchMove = createTouchMoveCallback(this);
this._onTouchEnd = createTouchEndCallback(this);
const timeBarEle = this._timeBarEle;
ownerDocument.addEventListener("mouseup", this._onMouseUp, false);
ownerDocument.addEventListener("mousemove", this._onMouseMove, false);
timeBarEle.addEventListener("mousedown", this._onMouseDown, false);
timeBarEle.addEventListener("DOMMouseScroll", this._onMouseWheel, false); // Mozilla mouse wheel
timeBarEle.addEventListener("mousewheel", this._onMouseWheel, false);
timeBarEle.addEventListener("touchstart", this._onTouchStart, false);
timeBarEle.addEventListener("touchmove", this._onTouchMove, false);
timeBarEle.addEventListener("touchend", this._onTouchEnd, false);
timeBarEle.addEventListener("touchcancel", this._onTouchEnd, false);
this._topDiv.oncontextmenu = function () {
return false;
};
clock.onTick.addEventListener(this.updateFromClock, this);
this.updateFromClock();
}
/**
* @private
*/
Timeline.prototype.addEventListener = function (type, listener, useCapture) {
this._topDiv.addEventListener(type, listener, useCapture);
};
/**
* @private
*/
Timeline.prototype.removeEventListener = function (type, listener, useCapture) {
this._topDiv.removeEventListener(type, listener, useCapture);
};
/**
* @returns {boolean} true if the object has been destroyed, false otherwise.
*/
Timeline.prototype.isDestroyed = function () {
return false;
};
/**
* Destroys the widget. Should be called if permanently
* removing the widget from layout.
*/
Timeline.prototype.destroy = function () {
this._clock.onTick.removeEventListener(this.updateFromClock, this);
const doc = this.container.ownerDocument;
doc.removeEventListener("mouseup", this._onMouseUp, false);
doc.removeEventListener("mousemove", this._onMouseMove, false);
const timeBarEle = this._timeBarEle;
timeBarEle.removeEventListener("mousedown", this._onMouseDown, false);
timeBarEle.removeEventListener("DOMMouseScroll", this._onMouseWheel, false); // Mozilla mouse wheel
timeBarEle.removeEventListener("mousewheel", this._onMouseWheel, false);
timeBarEle.removeEventListener("touchstart", this._onTouchStart, false);
timeBarEle.removeEventListener("touchmove", this._onTouchMove, false);
timeBarEle.removeEventListener("touchend", this._onTouchEnd, false);
timeBarEle.removeEventListener("touchcancel", this._onTouchEnd, false);
this.container.removeChild(this._topDiv);
destroyObject(this);
};
/**
* @private
*/
Timeline.prototype.addHighlightRange = function (color, heightInPx, base) {
const newHighlightRange = new TimelineHighlightRange(color, heightInPx, base);
this._highlightRanges.push(newHighlightRange);
this.resize();
return newHighlightRange;
};
/**
* @private
*/
Timeline.prototype.addTrack = function (
interval,
heightInPx,
color,
backgroundColor,
) {
const newTrack = new TimelineTrack(
interval,
heightInPx,
color,
backgroundColor,
);
this._trackList.push(newTrack);
this._lastHeight = undefined;
this.resize();
return newTrack;
};
/**
* Sets the view to the provided times.
*
* @param {JulianDate} startTime The start time.
* @param {JulianDate} stopTime The stop time.
*/
Timeline.prototype.zoomTo = function (startTime, stopTime) {
//>>includeStart('debug', pragmas.debug);
Iif (!defined(startTime)) {
throw new DeveloperError("startTime is required.");
}
Iif (!defined(stopTime)) {
throw new DeveloperError("stopTime is required");
}
Iif (JulianDate.lessThanOrEquals(stopTime, startTime)) {
throw new DeveloperError("Start time must come before end time.");
}
//>>includeEnd('debug');
this._startJulian = startTime;
this._endJulian = stopTime;
this._timeBarSecondsSpan = JulianDate.secondsDifference(stopTime, startTime);
// If clock is not unbounded, clamp timeline range to clock.
if (this._clock && this._clock.clockRange !== ClockRange.UNBOUNDED) {
const clockStart = this._clock.startTime;
const clockEnd = this._clock.stopTime;
const clockSpan = JulianDate.secondsDifference(clockEnd, clockStart);
const startOffset = JulianDate.secondsDifference(
clockStart,
this._startJulian,
);
const endOffset = JulianDate.secondsDifference(clockEnd, this._endJulian);
if (this._timeBarSecondsSpan >= clockSpan) {
// if new duration longer than clock range duration, clamp to full range.
this._timeBarSecondsSpan = clockSpan;
this._startJulian = this._clock.startTime;
this._endJulian = this._clock.stopTime;
} else Eif (startOffset > 0) {
// if timeline start is before clock start, shift right
this._endJulian = JulianDate.addSeconds(
this._endJulian,
startOffset,
new JulianDate(),
);
this._startJulian = clockStart;
this._timeBarSecondsSpan = JulianDate.secondsDifference(
this._endJulian,
this._startJulian,
);
} else if (endOffset < 0) {
// if timeline end is after clock end, shift left
this._startJulian = JulianDate.addSeconds(
this._startJulian,
endOffset,
new JulianDate(),
);
this._endJulian = clockEnd;
this._timeBarSecondsSpan = JulianDate.secondsDifference(
this._endJulian,
this._startJulian,
);
}
}
this._makeTics();
const evt = document.createEvent("Event");
evt.initEvent("setzoom", true, true);
evt.startJulian = this._startJulian;
evt.endJulian = this._endJulian;
evt.epochJulian = this._epochJulian;
evt.totalSpan = this._timeBarSecondsSpan;
evt.mainTicSpan = this._mainTicSpan;
this._topDiv.dispatchEvent(evt);
};
/**
* @private
*/
Timeline.prototype.zoomFrom = function (amount) {
let centerSec = JulianDate.secondsDifference(
this._scrubJulian,
this._startJulian,
);
if (amount > 1 || centerSec < 0 || centerSec > this._timeBarSecondsSpan) {
centerSec = this._timeBarSecondsSpan * 0.5;
} else {
centerSec += centerSec - this._timeBarSecondsSpan * 0.5;
}
const centerSecFlip = this._timeBarSecondsSpan - centerSec;
this.zoomTo(
JulianDate.addSeconds(
this._startJulian,
centerSec - centerSec * amount,
new JulianDate(),
),
JulianDate.addSeconds(
this._endJulian,
centerSecFlip * amount - centerSecFlip,
new JulianDate(),
),
);
};
function twoDigits(num) {
return num < 10 ? `0${num.toString()}` : num.toString();
}
/**
* @private
*/
Timeline.prototype.makeLabel = function (time) {
const gregorian = JulianDate.toGregorianDate(time);
const millisecond = gregorian.millisecond;
let millisecondString = " UTC";
Iif (millisecond > 0 && this._timeBarSecondsSpan < 3600) {
millisecondString = Math.floor(millisecond).toString();
while (millisecondString.length < 3) {
millisecondString = `0${millisecondString}`;
}
millisecondString = `.${millisecondString}`;
}
return `${timelineMonthNames[gregorian.month - 1]} ${gregorian.day} ${
gregorian.year
} ${twoDigits(gregorian.hour)}:${twoDigits(gregorian.minute)}:${twoDigits(
gregorian.second,
)}${millisecondString}`;
};
/**
* @private
*/
Timeline.prototype.smallestTicInPixels = 7.0;
/**
* @private
*/
Timeline.prototype._makeTics = function () {
const timeBar = this._timeBarEle;
const seconds = JulianDate.secondsDifference(
this._scrubJulian,
this._startJulian,
);
const xPos = Math.round(
(seconds * this._topDiv.clientWidth) / this._timeBarSecondsSpan,
);
const scrubX = xPos - 8;
let tic;
const widget = this;
this._needleEle.style.left = `${xPos.toString()}px`;
let tics = "";
const minimumDuration = 0.01;
const maximumDuration = 31536000000.0; // ~1000 years
const epsilon = 1e-10;
// If time step size is known, enter it here...
let minSize = 0;
let duration = this._timeBarSecondsSpan;
Iif (duration < minimumDuration) {
duration = minimumDuration;
this._timeBarSecondsSpan = minimumDuration;
this._endJulian = JulianDate.addSeconds(
this._startJulian,
minimumDuration,
new JulianDate(),
);
} else Iif (duration > maximumDuration) {
duration = maximumDuration;
this._timeBarSecondsSpan = maximumDuration;
this._endJulian = JulianDate.addSeconds(
this._startJulian,
maximumDuration,
new JulianDate(),
);
}
let timeBarWidth = this._timeBarEle.clientWidth;
if (timeBarWidth < 10) {
timeBarWidth = 10;
}
const startJulian = this._startJulian;
// epsilonTime: a small fraction of one pixel width of the timeline, measured in seconds.
const 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.
let epochJulian;
const gregorianDate = JulianDate.toGregorianDate(startJulian);
Iif (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 Iif (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.
const startTime = JulianDate.secondsDifference(
this._startJulian,
JulianDate.addSeconds(epochJulian, epsilonTime, new JulianDate()),
);
// endTime: Seconds offset of the right side of the timeline from epochJulian.
let 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()),
);
let 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;
}
const origMinSize = minSize;
minSize -= epsilon;
const 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.
let mainTic = 0.0,
subTic = 0.0,
tinyTic = 0.0;
// Ideal labeled tic as percentage of zoom interval
let 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;
let ticIndex = -1,
smallestIndex = -1;
const ticScaleLen = timelineTicScales.length;
let i;
for (i = 0; i < ticScaleLen; ++i) {
const 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;
}
}
Eif (ticIndex > 0) {
while (ticIndex > 0) {
// Compute sub-tic size that evenly divides main tic.
--ticIndex;
if (Math.abs(remainder(mainTic, timelineTicScales[ticIndex])) < 0.00001) {
Eif (timelineTicScales[ticIndex] >= minSize) {
subTic = timelineTicScales[ticIndex];
}
break;
}
}
Eif (smallestIndex >= 0) {
while (smallestIndex < ticIndex) {
// Compute tiny tic size that evenly divides sub-tic.
Eif (
Math.abs(remainder(subTic, timelineTicScales[smallestIndex])) <
0.00001 &&
timelineTicScales[smallestIndex] >= minSize
) {
tinyTic = timelineTicScales[smallestIndex];
break;
}
++smallestIndex;
}
}
}
minSize = origMinSize;
Iif (
minSize > epsilon &&
tinyTic < 0.00001 &&
Math.abs(minSize - mainTic) > epsilon
) {
tinyTic = minSize;
if (minSize <= mainTic + epsilon) {
subTic = 0.0;
}
}
let 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>`;
}
}
Eif (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);
const leapSecond = JulianDate.computeTaiMinusUtc(epochJulian);
while (tic <= endTime) {
let ticTime = JulianDate.addSeconds(
startJulian,
tic - startTime,
new JulianDate(),
);
Eif (mainTic > 2.1) {
const ticLeap = JulianDate.computeTaiMinusUtc(ticTime);
if (Math.abs(ticLeap - leapSecond) > 0.1) {
tic += ticLeap - leapSecond;
ticTime = JulianDate.addSeconds(
startJulian,
tic - startTime,
new JulianDate(),
);
}
}
const ticLeft = Math.round(timeBarWidth * getAlpha(tic));
const ticLabel = this.makeLabel(ticTime);
this._rulerEle.innerHTML = ticLabel;
textWidth = this._rulerEle.offsetWidth;
if (textWidth < 10) {
// IE iframe fullscreen sampleWidth workaround, continued.
textWidth = sampleWidth;
}
const 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: ${ticLeft.toString()}px;"></span>`;
}
tic = getNextTic(tic, mainTic);
}
} else E{
this._mainTicSpan = -1;
}
tics += `<span class="cesium-timeline-icon16" style="left:${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;
const scrubElement = this._scrubElement;
Eif (defined(this._scrubElement)) {
const seconds = JulianDate.secondsDifference(
this._scrubJulian,
this._startJulian,
);
const 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`;
}
}
Iif (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) {
const scrubX = xPos - 8;
this._scrubElement.style.left = `${scrubX.toString()}px`;
this._needleEle.style.left = `${xPos.toString()}px`;
}
const 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) {
let dx;
if (timeline._mouseMode === timelineMouseMode.scrub) {
e.preventDefault();
const 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) {
const 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) {
let 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) {
const len = e.touches.length;
let seconds, xPos;
const 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) {
const 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) {
let dx,
x,
len,
newCenter,
newSpan,
newStartTime,
zoom = 1;
const 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 () {
const width = this.container.clientWidth;
const height = this.container.clientHeight;
Iif (width === this._lastWidth && height === this._lastHeight) {
return;
}
this._trackContainer.style.height = `${height}px`;
let trackListHeight = 1;
this._trackList.forEach(function (track) {
trackListHeight += track.height;
});
this._trackListEle.style.height = `${trackListHeight.toString()}px`;
this._trackListEle.width = this._trackListEle.clientWidth;
this._trackListEle.height = trackListHeight;
this._makeTics();
this._lastXPos = undefined;
this._lastWidth = width;
this._lastHeight = height;
};
export default Timeline;
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