feat: add next track info to enlarged cover view with animation

index.html

@@ -43,6 +43,10 @@
             <div class="fullscreen-track-info">
                 <h2 id="fullscreen-track-title"></h2>
                 <h3 id="fullscreen-track-artist"></h3>
+                <div id="fullscreen-next-track" style="display: none;">
+                    <span class="label">Up Next: </span>
+                    <span class="value"></span>
+                </div>
             </div>
             <div class="fullscreen-controls">
                  <!-- Controls will be cloned or managed here if needed, or we just rely on main controls -->

js/app.js

@@ -252,7 +252,8 @@ document.addEventListener('DOMContentLoaded', async () => {
                 clearLyricsPanelSync(audioPlayer, lyricsPanel);
             }
         } else if (mode === 'cover') {
-            ui.showFullscreenCover(player.currentTrack);
+            const nextTrack = player.getNextTrack();
+            ui.showFullscreenCover(player.currentTrack, nextTrack);
         } else {
             // Default to 'album' mode - navigate to album
             if (player.currentTrack.album?.id) {
@@ -315,6 +316,13 @@ document.addEventListener('DOMContentLoaded', async () => {
                 }
             }
         }
+
+        // Update Fullscreen/Enlarged Cover if it's open
+        const fullscreenOverlay = document.getElementById('fullscreen-cover-overlay');
+        if (fullscreenOverlay && getComputedStyle(fullscreenOverlay).display !== 'none') {
+             const nextTrack = player.getNextTrack();
+             ui.showFullscreenCover(player.currentTrack, nextTrack);
+        }
     });
 
     document.addEventListener('click', async (e) => {

js/player.js

@@ -366,6 +366,19 @@ export class Player {
         return this.shuffleActive ? this.shuffledQueue : this.queue;
     }
 
+    getNextTrack() {
+        const currentQueue = this.getCurrentQueue();
+        if (this.currentQueueIndex === -1 || currentQueue.length === 0) return null;
+
+        const nextIndex = this.currentQueueIndex + 1;
+        if (nextIndex < currentQueue.length) {
+            return currentQueue[nextIndex];
+        } else if (this.repeatMode === REPEAT_MODE.ALL) {
+            return currentQueue[0];
+        }
+        return null;
+    }
+
     updatePlayingTrackIndicator() {
         const currentTrack = this.getCurrentQueue()[this.currentQueueIndex];
         document.querySelectorAll('.track-item').forEach(item => {

js/ui.js

@@ -259,13 +259,14 @@ export class UIRenderer {
         root.style.removeProperty('--ring');
     }
 
-    showFullscreenCover(track) {
+    showFullscreenCover(track, nextTrack) {
         if (!track) return;
 
         const overlay = document.getElementById('fullscreen-cover-overlay');
         const image = document.getElementById('fullscreen-cover-image');
         const title = document.getElementById('fullscreen-track-title');
         const artist = document.getElementById('fullscreen-track-artist');
+        const nextTrackEl = document.getElementById('fullscreen-next-track');
         
         const coverUrl = this.api.getCoverUrl(track.album?.cover, '1280');
 
@@ -273,6 +274,19 @@ export class UIRenderer {
         title.textContent = track.title;
         artist.textContent = track.artist?.name || 'Unknown Artist';
 
+        if (nextTrack) {
+            nextTrackEl.style.display = 'flex';
+            nextTrackEl.querySelector('.value').textContent = `${nextTrack.title} • ${nextTrack.artist?.name || 'Unknown'}`;
+            
+            // Replay animation
+            nextTrackEl.classList.remove('animate-in');
+            void nextTrackEl.offsetWidth; // Trigger reflow
+            nextTrackEl.classList.add('animate-in');
+        } else {
+            nextTrackEl.style.display = 'none';
+            nextTrackEl.classList.remove('animate-in');
+        }
+
         // Set the background image via CSS variable for the pseudo-element to use
         overlay.style.setProperty('--bg-image', `url('${coverUrl}')`);
         

styles.css

@@ -1319,6 +1319,33 @@ input:checked + .slider::before {
     text-shadow: 0 2px 10px rgba(0,0,0,0.5);
 }
 
+#fullscreen-next-track {
+    margin-top: 1.5rem;
+    font-size: 0.9rem;
+    color: rgba(255, 255, 255, 0.6);
+    text-shadow: 0 1px 4px rgba(0,0,0,0.5);
+    display: flex;
+    flex-direction: column;
+    gap: 0.2rem;
+    opacity: 0; /* Initially hidden for animation */
+}
+
+#fullscreen-next-track.animate-in {
+    animation: fadeIn 0.5s ease 0.2s forwards; /* Added forwards to keep opacity 1 */
+}
+
+#fullscreen-next-track .label {
+    text-transform: uppercase;
+    letter-spacing: 0.05em;
+    font-size: 0.75rem;
+    opacity: 0.8;
+}
+
+#fullscreen-next-track .value {
+    font-weight: 500;
+    color: rgba(255, 255, 255, 0.9);
+}
+
 @media (max-width: 768px) {
     #fullscreen-cover-overlay {
         padding-bottom: 160px; /* Account for taller mobile player bar */