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/* *
*
* (c) 2010-2021 Torstein Honsi
*
* License: www.highcharts.com/license
*
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
*
* */
'use strict';
import Color from '../Color/Color.js';
var color = Color.parse;
import H from '../Globals.js';
var win = H.win;
import U from '../Utilities.js';
var isNumber = U.isNumber, objectEach = U.objectEach;
/* eslint-disable no-invalid-this, valid-jsdoc */
/* *
*
* Class
*
* */
/**
* An animator object used internally. One instance applies to one property
* (attribute or style prop) on one element. Animation is always initiated
* through {@link SVGElement#animate}.
*
* @example
* let rect = renderer.rect(0, 0, 10, 10).add();
* rect.animate({ width: 100 });
*
* @private
* @class
* @name Highcharts.Fx
*
* @param {Highcharts.HTMLDOMElement|Highcharts.SVGElement} elem
* The element to animate.
*
* @param {Partial<Highcharts.AnimationOptionsObject>} options
* Animation options.
*
* @param {string} prop
* The single attribute or CSS property to animate.
*/
var Fx = /** @class */ (function () {
/* *
*
* Constructors
*
* */
function Fx(elem, options, prop) {
this.pos = NaN;
this.options = options;
this.elem = elem;
this.prop = prop;
}
/* *
*
* Functions
*
* */
/**
* Set the current step of a path definition on SVGElement.
*
* @function Highcharts.Fx#dSetter
*
*/
Fx.prototype.dSetter = function () {
var paths = this.paths, start = paths && paths[0], end = paths && paths[1], now = this.now || 0;
var path = [];
// Land on the final path without adjustment points appended in the ends
if (now === 1 || !start || !end) {
path = this.toD || [];
}
else if (start.length === end.length && now < 1) {
for (var i = 0; i < end.length; i++) {
// Tween between the start segment and the end segment. Start
// with a copy of the end segment and tween the appropriate
// numerics
var startSeg = start[i];
var endSeg = end[i];
var tweenSeg = [];
for (var j = 0; j < endSeg.length; j++) {
var startItem = startSeg[j];
var endItem = endSeg[j];
// Tween numbers
if (isNumber(startItem) &&
isNumber(endItem) &&
// Arc boolean flags
!(endSeg[0] === 'A' && (j === 4 || j === 5))) {
tweenSeg[j] = startItem + now * (endItem - startItem);
// Strings, take directly from the end segment
}
else {
tweenSeg[j] = endItem;
}
}
path.push(tweenSeg);
}
// If animation is finished or length not matching, land on right value
}
else {
path = end;
}
this.elem.attr('d', path, void 0, true);
};
/**
* Update the element with the current animation step.
*
* @function Highcharts.Fx#update
*
*/
Fx.prototype.update = function () {
var elem = this.elem, prop = this.prop, // if destroyed, it is null
now = this.now, step = this.options.step;
// Animation setter defined from outside
if (this[prop + 'Setter']) {
this[prop + 'Setter']();
// Other animations on SVGElement
}
else if (elem.attr) {
if (elem.element) {
elem.attr(prop, now, null, true);
}
// HTML styles, raw HTML content like container size
}
else {
elem.style[prop] = now + this.unit;
}
if (step) {
step.call(elem, now, this);
}
};
/**
* Run an animation.
*
* @function Highcharts.Fx#run
*
* @param {number} from
* The current value, value to start from.
*
* @param {number} to
* The end value, value to land on.
*
* @param {string} unit
* The property unit, for example `px`.
*
*/
Fx.prototype.run = function (from, to, unit) {
var self = this, options = self.options, timer = function (gotoEnd) {
return timer.stopped ? false : self.step(gotoEnd);
}, requestAnimationFrame = win.requestAnimationFrame ||
function (step) {
setTimeout(step, 13);
}, step = function () {
for (var i = 0; i < Fx.timers.length; i++) {
if (!Fx.timers[i]()) {
Fx.timers.splice(i--, 1);
}
}
if (Fx.timers.length) {
requestAnimationFrame(step);
}
};
if (from === to && !this.elem['forceAnimate:' + this.prop]) {
delete options.curAnim[this.prop];
if (options.complete &&
Object.keys(options.curAnim).length === 0) {
options.complete.call(this.elem);
}
}
else { // #7166
this.startTime = +new Date();
this.start = from;
this.end = to;
this.unit = unit;
this.now = this.start;
this.pos = 0;
timer.elem = this.elem;
timer.prop = this.prop;
if (timer() && Fx.timers.push(timer) === 1) {
requestAnimationFrame(step);
}
}
};
/**
* Run a single step in the animation.
*
* @function Highcharts.Fx#step
*
* @param {boolean} [gotoEnd]
* Whether to go to the endpoint of the animation after abort.
*
* @return {boolean}
* Returns `true` if animation continues.
*/
Fx.prototype.step = function (gotoEnd) {
var t = +new Date(), options = this.options, elem = this.elem, complete = options.complete, duration = options.duration, curAnim = options.curAnim;
var ret, done;
if ((elem.attr) && !elem.element) { // #2616, element is destroyed
ret = false;
}
else if (gotoEnd || t >= duration + this.startTime) {
this.now = this.end;
this.pos = 1;
this.update();
curAnim[this.prop] = true;
done = true;
objectEach(curAnim, function (val) {
if (val !== true) {
done = false;
}
});
if (done && complete) {
complete.call(elem);
}
ret = false;
}
else {
this.pos = options.easing((t - this.startTime) / duration);
this.now = this.start + ((this.end -
this.start) * this.pos);
this.update();
ret = true;
}
return ret;
};
/**
* Prepare start and end values so that the path can be animated one to one.
*
* @function Highcharts.Fx#initPath
*
* @param {Highcharts.SVGElement} elem
* The SVGElement item.
*
* @param {Highcharts.SVGPathArray|undefined} fromD
* Starting path definition.
*
* @param {Highcharts.SVGPathArray} toD
* Ending path definition.
*
* @return {Array<Highcharts.SVGPathArray,Highcharts.SVGPathArray>}
* An array containing start and end paths in array form so that
* they can be animated in parallel.
*/
Fx.prototype.initPath = function (elem, fromD, toD) {
var startX = elem.startX, endX = elem.endX, end = toD.slice(), // copy
isArea = elem.isArea, positionFactor = isArea ? 2 : 1;
var shift, fullLength, i, reverse, start = fromD && fromD.slice(); // copy
if (!start) {
return [end, end];
}
/**
* If shifting points, prepend a dummy point to the end path.
* @private
*/
function prepend(arr, other) {
while (arr.length < fullLength) {
// Move to, line to or curve to?
var moveSegment = arr[0], otherSegment = other[fullLength - arr.length];
if (otherSegment && moveSegment[0] === 'M') {
if (otherSegment[0] === 'C') {
arr[0] = [
'C',
moveSegment[1],
moveSegment[2],
moveSegment[1],
moveSegment[2],
moveSegment[1],
moveSegment[2]
];
}
else {
arr[0] = ['L', moveSegment[1], moveSegment[2]];
}
}
// Prepend a copy of the first point
arr.unshift(moveSegment);
// For areas, the bottom path goes back again to the left, so we
// need to append a copy of the last point.
if (isArea) {
var z = arr.pop();
arr.push(arr[arr.length - 1], z); // append point and the Z
}
}
}
/**
* Copy and append last point until the length matches the end length.
* @private
*/
function append(arr, other) {
while (arr.length < fullLength) {
// Pull out the slice that is going to be appended or inserted.
// In a line graph, the positionFactor is 1, and the last point
// is sliced out. In an area graph, the positionFactor is 2,
// causing the middle two points to be sliced out, since an area
// path starts at left, follows the upper path then turns and
// follows the bottom back.
var segmentToAdd = arr[Math.floor(arr.length / positionFactor) - 1].slice();
// Disable the first control point of curve segments
if (segmentToAdd[0] === 'C') {
segmentToAdd[1] = segmentToAdd[5];
segmentToAdd[2] = segmentToAdd[6];
}
if (!isArea) {
arr.push(segmentToAdd);
}
else {
var lowerSegmentToAdd = arr[Math.floor(arr.length / positionFactor)].slice();
arr.splice(arr.length / 2, 0, segmentToAdd, lowerSegmentToAdd);
}
}
}
// For sideways animation, find out how much we need to shift to get the
// start path Xs to match the end path Xs.
if (startX && endX && endX.length) {
for (i = 0; i < startX.length; i++) {
// Moving left, new points coming in on right
if (startX[i] === endX[0]) {
shift = i;
break;
// Moving right
}
else if (startX[0] ===
endX[endX.length - startX.length + i]) {
shift = i;
reverse = true;
break;
// Fixed from the right side, "scaling" left
}
else if (startX[startX.length - 1] ===
endX[endX.length - startX.length + i]) {
shift = startX.length - i;
break;
}
}
if (typeof shift === 'undefined') {
start = [];
}
}
if (start.length && isNumber(shift)) {
// The common target length for the start and end array, where both
// arrays are padded in opposite ends
fullLength = end.length + shift * positionFactor;
if (!reverse) {
prepend(end, start);
append(start, end);
}
else {
prepend(start, end);
append(end, start);
}
}
return [start, end];
};
/**
* Handle animation of the color attributes directly.
*
* @function Highcharts.Fx#fillSetter
*
*/
Fx.prototype.fillSetter = function () {
Fx.prototype.strokeSetter.apply(this, arguments);
};
/**
* Handle animation of the color attributes directly.
*
* @function Highcharts.Fx#strokeSetter
*
*/
Fx.prototype.strokeSetter = function () {
this.elem.attr(this.prop, color(this.start).tweenTo(color(this.end), this.pos), void 0, true);
};
/* *
*
* Static Properties
*
* */
Fx.timers = [];
return Fx;
}());
/* *
*
* Default Export
*
* */
export default Fx;
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