Adds feature to automatically play next media in folder/directory

index.php

@@ -639,7 +639,8 @@
         const state = {
             currentType: 'videos',
             currentFile: null,
-            filesData: null
+            filesData: null,
+	    currentItemEl: null
         };
 
         // Initialize
@@ -766,6 +767,72 @@
             }
         }
 
+      function setActiveFileItem(fileItemEl) {
+	  // Clear existing "active" state
+	  document.querySelectorAll('.file-item').forEach(f => f.classList.remove('active'));
+
+	  // Set new "active"
+	  if (fileItemEl) {
+	      fileItemEl.classList.add('active');
+	      fileItemEl.scrollIntoView({ block: 'nearest', behavior: 'smooth' });
+	  }
+
+	  state.currentItemEl = fileItemEl || null;
+      }
+
+      /**
+       * Finds the "next" file-item in UI order, preferring the same folder/div
+       * the current item is in. If there's no next sibling, it walks up the DOM
+       * and continues searching.
+       */
+      function findNextFileItem(currentEl) {
+	  if (!currentEl) return null;
+
+	  // 1) Prefer "next siblings" within the same container
+	  let n = currentEl.nextElementSibling;
+	  while (n) {
+	      if (n.classList && n.classList.contains('file-item')) return n;
+	      n = n.nextElementSibling;
+	  }
+
+	  // 2) If none, walk upward and look for the next file-item after the
+	  //    parent container (e.g., next folder section)
+	  let parent = currentEl.parentElement;
+	  while (parent) {
+	      // Stop at the file browser root
+	      if (parent.id === 'fileBrowser') break;
+
+	      let pNext = parent.nextElementSibling;
+	      while (pNext) {
+		  // If the next sibling is a file-item, play it
+		  if (pNext.classList && pNext.classList.contains('file-item')) return pNext;
+
+		  // If it's a folder, search inside it for the first file-item
+		  const inside = pNext.querySelector && pNext.querySelector('.file-item');
+		  if (inside) return inside;
+
+		  pNext = pNext.nextElementSibling;
+	      }
+
+	      parent = parent.parentElement;
+	  }
+
+	  // No next item found
+	  return null;
+      }
+
+      function playNextItem() {
+	  const next = findNextFileItem(state.currentItemEl);
+	  if (!next) {
+	      console.log('Reached end of list; no next item.');
+	      return;
+	  }
+
+	  // Trigger the same behavior as clicking it
+	  next.click();
+      }
+
+
         function renderFileTree(files, container = document.getElementById('fileBrowser'), depth = 0) {
             if (depth === 0) {
                 container.innerHTML = '';
@@ -801,11 +868,15 @@
                     const icon = state.currentType === 'videos' ? '🎬' : '🎵';
                     fileItem.innerHTML = `<span class="file-icon">${icon}</span><span>${name}</span>`;
                     
-                    fileItem.addEventListener('click', () => {
-                        playFile(content, name);
-                        document.querySelectorAll('.file-item').forEach(f => f.classList.remove('active'));
-                        fileItem.classList.add('active');
-                    });
+		    fileItem.dataset.path = content;
+		    fileItem.dataset.name = name;
+
+		    fileItem.addEventListener('click', () => {
+			// Play and mark active
+			playFile(content, name, fileItem);
+			setActiveFileItem(fileItem);
+		    });
+
                     
                     container.appendChild(fileItem);
                 }
@@ -876,7 +947,7 @@
         }
 
 
-        function playFile(path, name) {
+        function playFile(path, name, sourceItemEl = null) {
             const playerContainer = document.getElementById('playerContainer');
             const nowPlaying = document.getElementById('nowPlaying');
             const nowPlayingTitle = document.getElementById('nowPlayingTitle');
@@ -891,6 +962,11 @@
             mediaElement.controls = true;
             mediaElement.autoplay = true;
 
+	    // Keep track of which UI element launched playback (used for "next")
+	    if (sourceItemEl) {
+		state.currentItemEl = sourceItemEl;
+	    }
+
             if (isVideo) {
                 // Some browsers only populate audioTracks after metadata is available
                 mediaElement.addEventListener('loadedmetadata', () => {
@@ -929,6 +1005,12 @@
                 console.log('Media ready to play:', name);
             });
 
+	    mediaElement.addEventListener('ended', () => {
+		// Auto-advance to next item when current finishes
+		playNextItem();
+	    });
+
+            
             // URL encode the path properly
             const encodedPath = encodeURIComponent(path);
             mediaElement.src = `serve_media.php?file=${encodedPath}`;