shaka-player/ui/big_play_button.js

DASH/EME video player library

/*! @license
 * Shaka Player
 * Copyright 2016 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */


goog.provide('shaka.ui.BigPlayButton');

goog.require('shaka.ui.Locales');
goog.require('shaka.ui.PlayButton');
goog.requireType('shaka.ui.Controls');


/**
 * @extends {shaka.ui.PlayButton}
 * @final
 * @export
 */
shaka.ui.BigPlayButton = class extends shaka.ui.PlayButton {
  /**
   * @param {!HTMLElement} parent
   * @param {!shaka.ui.Controls} controls
   */
  constructor(parent, controls) {
    super(parent, controls);

    this.button.classList.add('shaka-play-button');
    this.button.classList.add('shaka-no-propagation');

    this.updateIcon();
    this.updateAriaLabel();
  }


  /** @override */
  updateIcon() {
    if (this.isPaused()) {
      this.button.setAttribute('icon', 'play');
    } else {
      this.button.setAttribute('icon', 'pause');
    }
  }


  /** @override */
  updateAriaLabel() {
    const LocIds = shaka.ui.Locales.Ids;
    const label = this.isPaused() ? LocIds.PLAY : LocIds.PAUSE;

    this.button.ariaLabel = this.localization.resolve(label);
  }
};