feat(front): closes #2401 mobile lockscreen media support

front/src/composables/audio/player.ts

@@ -43,7 +43,7 @@ export const isPlaying = ref(false)
 // Use Player
 export const usePlayer = createGlobalState(() => {
   const { currentSound } = useTracks()
-  const { playNext } = useQueue()
+  const { playNext, playPrevious } = useQueue()
 
   const pauseReason = ref(PauseReason.UserInput)
 
@@ -228,6 +228,56 @@ export const usePlayer = createGlobalState(() => {
   watch(currentIndex, stopErrorTimeout)
   whenever(errored, startErrorTimeout)
 
+  // Mobile controls and lockscreen cover art
+  const updateMediaSession = () => {
+    if ('mediaSession' in navigator && currentTrack.value) {
+      // Check if the cover is large enough for higher res
+      const isHighRes = currentTrack.value.coverUrl.includes('large') || currentTrack.value.coverUrl.includes('original')
+
+      navigator.mediaSession.metadata = new MediaMetadata({
+        title: currentTrack.value.title,
+        artist: currentTrack.value.artistCredit?.map(ac => ac.credit).join(', ') || 'Unknown Artist',
+        album: currentTrack.value.albumTitle || 'Unknown Album',
+        artwork: [
+          { src: currentTrack.value.coverUrl, sizes: isHighRes ? "1200x1200" : "1024x1024", type: 'image/jpeg' }
+        ]
+      })
+
+      navigator.mediaSession.setActionHandler('play', () => {
+        isPlaying.value = true;
+      })
+
+      navigator.mediaSession.setActionHandler('pause', () => {
+        isPlaying.value = false;
+      })
+
+      navigator.mediaSession.setActionHandler('previoustrack', () => {
+        playPrevious()
+      })
+
+      navigator.mediaSession.setActionHandler('nexttrack', () => {
+        playNext()
+      })
+
+      navigator.mediaSession.setActionHandler('seekbackward', (details) => {
+        seekBy(details.seekOffset || -10)
+      })
+
+      navigator.mediaSession.setActionHandler('seekforward', (details) => {
+        seekBy(details.seekOffset || 10)
+      })
+    }
+  }
+
+  watch(currentTrack, () => {
+    updateMediaSession();
+  })
+
+  watch(isPlaying, () => {
+    navigator.mediaSession.playbackState = isPlaying.value ? 'playing' : 'paused';
+  })
+
+
   return {
     initializeFirstTrack,
     isPlaying,

front/src/composables/audio/queue.ts

@@ -123,11 +123,11 @@ export const useQueue = createGlobalState(() => {
       artistId: (track.artist_credit && track.artist_credit[0] && track.artist_credit[0].artist.id) ?? -1,
       albumId: track.album?.id ?? -1,
       coverUrl: (
-        (track.cover?.urls)
-        || (track.album?.cover?.urls)
-        || ((track.artist_credit && track.artist_credit[0] && track.artist_credit[0].artist && track.artist_credit[0].artist.attachment_cover?.urls))
-        || {}
-      )?.original ?? new URL('../../assets/audio/default-cover.png', import.meta.url).href,
+        track.cover?.urls.original ||
+        track.album.cover?.urls.original ||
+        track.artist_credit[0].artist.attachment_cover?.urls.original ||
+        new URL('../../assets/audio/default-cover.png', import.meta.url).href
+      ).toString(),
       sources: track.uploads.map(upload => ({
         uuid: upload.uuid,
         duration: upload.duration,