1 files changed, 118 insertions, 0 deletions
diff --git a/javascript/videojs/src/js/control-bar/audio-track-controls/audio-track-menu-item.js b/javascript/videojs/src/js/control-bar/audio-track-controls/audio-track-menu-item.js
new file mode 100644
index 0000000..be26f6b
--- /dev/null
+++ b/javascript/videojs/src/js/control-bar/audio-track-controls/audio-track-menu-item.js
@@ -0,0 +1,118 @@
+/**
+ * @file audio-track-menu-item.js
+ */
+import MenuItem from '../../menu/menu-item.js';
+import Component from '../../component.js';
+import * as Dom from '../../utils/dom.js';
+
+/** @import Player from '../../player' */
+
+/**
+ * An {@link AudioTrack} {@link MenuItem}
+ *
+ * @extends MenuItem
+ */
+class AudioTrackMenuItem extends MenuItem {
+
+  /**
+   * Creates an instance of this class.
+   *
+   * @param {Player} player
+   *        The `Player` that this class should be attached to.
+   *
+   * @param {Object} [options]
+   *        The key/value store of player options.
+   */
+  constructor(player, options) {
+    const track = options.track;
+    const tracks = player.audioTracks();
+
+    // Modify options for parent MenuItem class's init.
+    options.label = track.label || track.language || 'Unknown';
+    options.selected = track.enabled;
+
+    super(player, options);
+
+    this.track = track;
+
+    this.addClass(`vjs-${track.kind}-menu-item`);
+
+    const changeHandler = (...args) => {
+      this.handleTracksChange.apply(this, args);
+    };
+
+    tracks.addEventListener('change', changeHandler);
+    this.on('dispose', () => {
+      tracks.removeEventListener('change', changeHandler);
+    });
+  }
+
+  createEl(type, props, attrs) {
+    const el = super.createEl(type, props, attrs);
+    const parentSpan = el.querySelector('.vjs-menu-item-text');
+
+    if (['main-desc', 'descriptions'].indexOf(this.options_.track.kind) >= 0) {
+      parentSpan.appendChild(Dom.createEl('span', {
+        className: 'vjs-icon-placeholder'
+      }, {
+        'aria-hidden': true
+      }));
+      parentSpan.appendChild(Dom.createEl('span', {
+        className: 'vjs-control-text',
+        textContent: ' ' + this.localize('Descriptions')
+      }));
+    }
+
+    return el;
+  }
+
+  /**
+   * This gets called when an `AudioTrackMenuItem is "clicked". See {@link ClickableComponent}
+   * for more detailed information on what a click can be.
+   *
+   * @param {Event} [event]
+   *        The `keydown`, `tap`, or `click` event that caused this function to be
+   *        called.
+   *
+   * @listens tap
+   * @listens click
+   */
+  handleClick(event) {
+    super.handleClick(event);
+
+    // the audio track list will automatically toggle other tracks
+    // off for us.
+    this.track.enabled = true;
+
+    // when native audio tracks are used, we want to make sure that other tracks are turned off
+    if (this.player_.tech_.featuresNativeAudioTracks) {
+      const tracks = this.player_.audioTracks();
+
+      for (let i = 0; i < tracks.length; i++) {
+        const track = tracks[i];
+
+        // skip the current track since we enabled it above
+        if (track === this.track) {
+          continue;
+        }
+
+        track.enabled = track === this.track;
+      }
+    }
+  }
+
+  /**
+   * Handle any {@link AudioTrack} change.
+   *
+   * @param {Event} [event]
+   *        The {@link AudioTrackList#change} event that caused this to run.
+   *
+   * @listens AudioTrackList#change
+   */
+  handleTracksChange(event) {
+    this.selected(this.track.enabled);
+  }
+}
+
+Component.registerComponent('AudioTrackMenuItem', AudioTrackMenuItem);
+export default AudioTrackMenuItem;