Initial transcription support

client/components/app/MediaPlayerContainer.vue

@@ -1,5 +1,6 @@
 <template>
-  <div v-if="streamLibraryItem" id="mediaPlayerContainer" class="w-full fixed bottom-0 left-0 right-0 h-48 lg:h-40 z-50 bg-primary px-2 lg:px-4 pb-1 lg:pb-4 pt-2">
+    <div v-if="streamLibraryItem" id="mediaPlayerContainer"  class="w-full fixed bottom-0 left-0 right-0 z-50 bg-primary px-2 lg:px-4 pb-1 lg:pb-4 pt-2"
+         :class="[showTranscriptionUi ? 'h-64' : 'h-48', showTranscriptionUi ? 'lg:h-64' : 'lg:h-40']">
     <div id="videoDock" />
     <div class="absolute left-2 top-2 lg:left-4 cursor-pointer">
       <covers-book-cover expand-on-click :library-item="streamLibraryItem" :width="bookCoverWidth" :book-cover-aspect-ratio="coverAspectRatio" />
@@ -41,6 +42,7 @@
       :sleep-timer-set="sleepTimerSet"
       :sleep-timer-remaining="sleepTimerRemaining"
       :is-podcast="isPodcast"
+      :transcription-enabled="showTranscriptionUi"
       @playPause="playPause"
       @jumpForward="jumpForward"
       @jumpBackward="jumpBackward"
@@ -51,8 +53,11 @@
       @showBookmarks="showBookmarks"
       @showSleepTimer="showSleepTimerModal = true"
       @showPlayerQueueItems="showPlayerQueueItemsModal = true"
+      @showTranscription="showTranscriptionUi = !showTranscriptionUi"
     />
 
+    <transcription-ui v-if="showTranscriptionUi"></transcription-ui>
+
     <modals-bookmarks-modal v-model="showBookmarksModal" :bookmarks="bookmarks" :current-time="bookmarkCurrentTime" :library-item-id="libraryItemId" @select="selectBookmark" />
 
     <modals-sleep-timer-modal v-model="showSleepTimerModal" :timer-set="sleepTimerSet" :timer-time="sleepTimerTime" :remaining="sleepTimerRemaining" @set="setSleepTimer" @cancel="cancelSleepTimer" @increment="incrementSleepTimer" @decrement="decrementSleepTimer" />
@@ -63,8 +68,10 @@
 
 <script>
 import PlayerHandler from '@/players/PlayerHandler'
+import TranscriptionUi from "@/components/player/TranscriptionUi.vue";
 
 export default {
+  components: {TranscriptionUi},
   data() {
     return {
       playerHandler: new PlayerHandler(this),
@@ -76,6 +83,7 @@ export default {
       currentTime: 0,
       showSleepTimerModal: false,
       showPlayerQueueItemsModal: false,
+      showTranscriptionUi: false,
       sleepTimerSet: false,
       sleepTimerTime: 0,
       sleepTimerRemaining: 0,
@@ -86,6 +94,17 @@ export default {
       coverAspectRatio: 1
     }
   },
+  watch: {
+    'playerHandler.playerState': function (newVal, oldVal) {
+      // Refresh the transcription UI when the player is changed
+      if (newVal === 'LOADED') {
+        this.showTranscriptionUi = false;
+        this.$nextTick(() => {
+          this.showTranscriptionUi = true;
+        });
+      }
+    },
+  },
   computed: {
     isSquareCover() {
       return this.coverAspectRatio === 1

client/components/player/PlayerUi.vue

@@ -36,6 +36,13 @@
           </button>
         </ui-tooltip>
 
+        <ui-tooltip direction="top" :text="$strings.LabelViewTranscription">
+          <button :aria-label="$strings.LabelViewTranscription" class="outline-none text-gray-300 mx-1 lg:mx-2 hover:text-white" @mousedown.prevent @mouseup.prevent @click.stop="$emit('showTranscription')">
+            <span v-if="!transcriptionEnabled" class="material-icons text-2xl">subtitles</span>
+            <span v-else  class="material-icons text-2xl text-warning">subtitles</span>
+          </button>
+        </ui-tooltip>
+
         <ui-tooltip v-if="chapters.length" direction="top" :text="useChapterTrack ? $strings.LabelUseFullTrack : $strings.LabelUseChapterTrack">
           <button :aria-label="useChapterTrack ? $strings.LabelUseFullTrack : $strings.LabelUseChapterTrack" class="text-gray-300 mx-1 lg:mx-2 hover:text-white" @mousedown.prevent @mouseup.prevent @click.stop="setUseChapterTrack">
             <span class="material-icons text-2xl sm:text-3xl transform transition-transform" :class="useChapterTrack ? 'rotate-180' : ''">timelapse</span>
@@ -78,7 +85,8 @@ export default {
     },
     sleepTimerSet: Boolean,
     sleepTimerRemaining: Number,
-    isPodcast: Boolean
+    isPodcast: Boolean,
+    transcriptionEnabled: Boolean
   },
   data() {
     return {
@@ -368,4 +376,4 @@ export default {
     left: 100%;
   }
 }
-</style>
+</style>

client/components/player/TranscriptionLine.vue

@@ -0,0 +1,29 @@
+<template>
+  <div :class="{ 'text-warning': isActive }">
+    <div v-html="cue.text"></div>
+  </div>
+</template>
+
+<script>
+export default {
+  props: {
+    cue: VTTCue
+  },
+  data() {
+    return {
+      isActive: false
+    };
+  },
+  created() {
+    this.cue.onenter = () => (this.isActive = true);
+    this.cue.onexit = () => (this.isActive = false);
+  },
+  watch: {
+    isActive(newVal) {
+      if (newVal) {
+        this.$el.scrollIntoView({behavior: 'smooth'});
+      }
+    }
+  }
+};
+</script>

client/components/player/TranscriptionUi.vue

@@ -0,0 +1,40 @@
+<template>
+  <div id="transcription-panel">
+    <transcription-line
+      v-for="(cue, index) in cues"
+      :key="index"
+      :cue="cue"
+      ref="transcriptionLine + index"
+    ></transcription-line>
+  </div>
+</template>
+
+<script>
+import TranscriptionLine from "./TranscriptionLine.vue";
+
+export default {
+  components: {
+    TranscriptionLine
+  },
+  data() {
+    return {
+      cues: [],
+    };
+  },
+  mounted() {
+    this.init()
+  },
+  methods: {
+    init() {
+      const trackElement = document.getElementById("transcription-track");
+      this.cues = trackElement.track.cues;
+    },
+  },
+};
+</script>
+<style>
+#transcription-panel {
+  max-height: 75px;
+  overflow-y: auto;
+}
+</style>