message: Add a Stop button to the audio viewer.
diff: @@ -25,6 +25,9 @@ import Vue from 'vue';
  <i v-if="!playing" class="fa fa-play"></i>
  <i v-if="playing" class="fa fa-pause"></i>
  </button>
  + <button v-on:click="onStopClick" class="btn btn-default">
  + <i class="fa fa-stop"></i>
  + </button>
  </div>
  </div>
  <div id="time">
  @@ -87,6 +90,15 @@ export class AudioViewerUi extends Vue {
  }
  }
  + onStopClick(): void {
  + const player = this._getAudioElement();
  + if (this.playing) {
  + player.pause();
  + this.playing = false;
  + }
  + player.currentTime = 0;
  + }
  +
  onTimeUpdate(): void {
  this.currentTime = this._getAudioElement().currentTime;
  }
  