@devexperts/dxcharts-lite
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JavaScript
/*
* Copyright (C) 2019 - 2025 Devexperts Solutions IE Limited
* This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
* If a copy of the MPL was not distributed with this file, You can obtain one at https://mozilla.org/MPL/2.0/.
*/
/**
* Basic animation. Holds current state: inProgress, timeLeft.
* Additional params are useful to pass data which helps animating.
*/
export class Animation {
constructor(animationConfig, onTickFunction) {
this.animationTimeLeft = 0;
this.onTickFunction = onTickFunction;
this.animationTime = animationConfig.duration;
this.animationStartTime = Date.now();
this.animationInProgress = true;
}
/*
* Decrements the animation time left and executes the onTickFunction if it exists.
* If the animation time left reaches zero, sets the animationInProgress flag to false.
*/
tick() {
var _a;
if (Date.now() > this.animationStartTime + this.animationTime) {
this.animationInProgress = false;
}
(_a = this.onTickFunction) === null || _a === void 0 ? void 0 : _a.call(this);
}
/*
* Gets the normalized progress of the animation.
* @returns {number} A value between 0 and 1 representing the progress of the animation.
*/
getProgress() {
return Math.min((Date.now() - this.animationStartTime) / this.animationTime, 1);
}
/*
* Sets the animationInProgress flag to false and resets the animationStartTime to 0.
*/
finishAnimation() {
this.animationInProgress = false;
this.animationStartTime = 0;
}
}