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node_modules/lottie-web/player/js/elements/AudioElement.js

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+import {
+  extendPrototype,
+} from '../utils/functionExtensions';
+import PropertyFactory from '../utils/PropertyFactory';
+import RenderableElement from './helpers/RenderableElement';
+import BaseElement from './BaseElement';
+import FrameElement from './helpers/FrameElement';
+
+function AudioElement(data, globalData, comp) {
+  this.initFrame();
+  this.initRenderable();
+  this.assetData = globalData.getAssetData(data.refId);
+  this.initBaseData(data, globalData, comp);
+  this._isPlaying = false;
+  this._canPlay = false;
+  var assetPath = this.globalData.getAssetsPath(this.assetData);
+  this.audio = this.globalData.audioController.createAudio(assetPath);
+  this._currentTime = 0;
+  this.globalData.audioController.addAudio(this);
+  this._volumeMultiplier = 1;
+  this._volume = 1;
+  this._previousVolume = null;
+  this.tm = data.tm ? PropertyFactory.getProp(this, data.tm, 0, globalData.frameRate, this) : { _placeholder: true };
+  this.lv = PropertyFactory.getProp(this, data.au && data.au.lv ? data.au.lv : { k: [100] }, 1, 0.01, this);
+}
+
+AudioElement.prototype.prepareFrame = function (num) {
+  this.prepareRenderableFrame(num, true);
+  this.prepareProperties(num, true);
+  if (!this.tm._placeholder) {
+    var timeRemapped = this.tm.v;
+    this._currentTime = timeRemapped;
+  } else {
+    this._currentTime = num / this.data.sr;
+  }
+  this._volume = this.lv.v[0];
+  var totalVolume = this._volume * this._volumeMultiplier;
+  if (this._previousVolume !== totalVolume) {
+    this._previousVolume = totalVolume;
+    this.audio.volume(totalVolume);
+  }
+};
+
+extendPrototype([RenderableElement, BaseElement, FrameElement], AudioElement);
+
+AudioElement.prototype.renderFrame = function () {
+  if (this.isInRange && this._canPlay) {
+    if (!this._isPlaying) {
+      this.audio.play();
+      this.audio.seek(this._currentTime / this.globalData.frameRate);
+      this._isPlaying = true;
+    } else if (!this.audio.playing()
+      || Math.abs(this._currentTime / this.globalData.frameRate - this.audio.seek()) > 0.1
+    ) {
+      this.audio.seek(this._currentTime / this.globalData.frameRate);
+    }
+  }
+};
+
+AudioElement.prototype.show = function () {
+  // this.audio.play()
+};
+
+AudioElement.prototype.hide = function () {
+  this.audio.pause();
+  this._isPlaying = false;
+};
+
+AudioElement.prototype.pause = function () {
+  this.audio.pause();
+  this._isPlaying = false;
+  this._canPlay = false;
+};
+
+AudioElement.prototype.resume = function () {
+  this._canPlay = true;
+};
+
+AudioElement.prototype.setRate = function (rateValue) {
+  this.audio.rate(rateValue);
+};
+
+AudioElement.prototype.volume = function (volumeValue) {
+  this._volumeMultiplier = volumeValue;
+  this._previousVolume = volumeValue * this._volume;
+  this.audio.volume(this._previousVolume);
+};
+
+AudioElement.prototype.getBaseElement = function () {
+  return null;
+};
+
+AudioElement.prototype.destroy = function () {
+};
+
+AudioElement.prototype.sourceRectAtTime = function () {
+};
+
+AudioElement.prototype.initExpressions = function () {
+};
+
+export default AudioElement;