add thumbnails in frontend

app.py

@@ -100,6 +100,8 @@ def list_directory_contents(directory, subpath):
     music_exts = ('.mp3',)
     image_exts = ('.jpg', '.jpeg', '.png', '.gif', '.bmp')
     
+    blocked_filenames = ['Thumbs.db']
+    
     try:
         with os.scandir(directory) as it:
             # Sorting by name if required.
@@ -108,6 +110,10 @@ def list_directory_contents(directory, subpath):
                 if entry.name.startswith('.'):
                     continue
                 
+                # Skip blocked_filenames
+                if entry.name in blocked_filenames:
+                    continue
+
                 if entry.is_dir(follow_symlinks=False):
                     if entry.name in ["Transkription", "@eaDir"]:
                         continue
@@ -287,7 +293,7 @@ def serve_file(subpath):
                 img = ImageOps.exif_transpose(orig)
                 variants = {
                     orig_key:  (1920, 1920),
-                    small_key: ( 192,  192),
+                    small_key: ( 480,  480),
                 }
                 for key, size in variants.items():
                     thumb = img.copy()
@@ -295,10 +301,8 @@ def serve_file(subpath):
                     if thumb.mode in ("RGBA", "P"):
                         thumb = thumb.convert("RGB")
                     bio = io.BytesIO()
-                    save_kwargs = {'format': 'JPEG', 'quality': 85}
-                    if exif_bytes:
-                        save_kwargs['exif'] = exif_bytes
-                    thumb.save(bio, **save_kwargs)
+                    # don’t pass exif_bytes here
+                    thumb.save(bio, format='JPEG', quality=85)
                     bio.seek(0)
                     cache.set(key, bio, read=True)
             # Read back the variant we need

static/app.css

@@ -237,3 +237,26 @@ footer {
   opacity: 0;
   cursor: auto;
 }
+
+.images-grid {
+  display: grid;
+  /* make each column exactly 150px wide */
+  grid-template-columns: repeat(auto-fill, 150px);
+  /* force every row exactly 150px tall */
+  grid-auto-rows: 150px;
+  gap: 14px;
+}
+
+.image-item {
+  /* ensure the thumbnail can’t overflow its cell */
+  overflow: hidden;
+}
+
+.thumbnail {
+  /* fill the full cell */
+  width: 100%;
+  height: 100%;
+  /* crop/scale to cover without stretching */
+  object-fit: cover;
+  border-radius: 4px;
+}

static/app.js

@@ -34,8 +34,7 @@ function paintFile() {
 }
 
 function renderContent(data) {
-
-  // Render breadcrumbs, directories (grid view when appropriate), and files.
+  // Render breadcrumbs
   let breadcrumbHTML = '';
   data.breadcrumbs.forEach((crumb, index) => {
     breadcrumbHTML += `<a href="#" class="breadcrumb-link" data-path="${crumb.path}">${crumb.name}</a>`;
@@ -45,14 +44,32 @@ function renderContent(data) {
   });
   document.getElementById('breadcrumbs').innerHTML = breadcrumbHTML;
 
+  // Check for image-only directory (no subdirectories, at least one file, all images)
+  const isImageOnly = data.directories.length === 0
+    && data.files.length > 0
+    && data.files.every(file => file.file_type === 'image');
 
-  // Render directories.
   let contentHTML = '';
+
+  if (isImageOnly) {
+    // Display thumbnails grid
+    contentHTML += '<div class="images-grid">';
+    data.files.forEach(file => {
+      const thumbUrl = `${file.path}?thumbnail=true`;
+      contentHTML += `
+        <div class="image-item">
+          <a href="#" class="play-file image-link" data-url="${file.path}" data-file-type="${file.file_type}">
+            <img src="/media/${thumbUrl}" alt="${file.name}" class="thumbnail" />
+          </a>
+        </div>
+      `;
+    });
+    contentHTML += '</div>';
+  } else {
+    // Render directories normally
     if (data.directories.length > 0) {
-    contentHTML += '<ul>';
-    // Check if every directory name is short (≤15 characters) and no files are present
       const areAllShort = data.directories.every(dir => dir.name.length <= 15) && data.files.length === 0;
-    if (areAllShort & data.breadcrumbs.length != 1) {
+      if (areAllShort && data.breadcrumbs.length !== 1) {
         contentHTML += '<div class="directories-grid">';
         data.directories.forEach(dir => {
           contentHTML += `<div class="directory-item">📁 <a href="#" class="directory-link" data-path="${dir.path}">${dir.name}</a></div>`;
@@ -63,15 +80,15 @@ function renderContent(data) {
         data.directories.forEach(dir => {
           contentHTML += `<li class="directory-item">📁 <a href="#" class="directory-link" data-path="${dir.path}">${dir.name}</a></li>`;
         });
-      if (data.breadcrumbs.length == 1) {
+        if (data.breadcrumbs.length === 1) {
           contentHTML += `<li class="link-item" onclick="window.location.href='/search'">🔎 <a href="/search" class="link-link">Suche</a></li>`;
         }
         contentHTML += '</ul>';
       }
     }
 
-  // Render files.
-  currentMusicFiles = []; // Reset the music files array.
+    // Render files (including music and non-image files)
+    currentMusicFiles = [];
     if (data.files.length > 0) {
       contentHTML += '<ul>';
       data.files.forEach((file, idx) => {
@@ -92,55 +109,48 @@ function renderContent(data) {
       });
       contentHTML += '</ul>';
     }
+  }
 
-  // Insert the generated HTML into a container in the DOM.
+  // Insert generated content
   document.getElementById('content').innerHTML = contentHTML;
 
-  // Now attach the event listeners for directories.
-  document.querySelectorAll('div.directory-item').forEach(li => {
-    li.addEventListener('click', function(e) {
-      // Only trigger if the click did not start on an <a>.
+  // Attach event listeners for directories
+  document.querySelectorAll('.directory-item').forEach(item => {
+    item.addEventListener('click', function(e) {
       if (!e.target.closest('a')) {
-        const anchor = li.querySelector('a.directory-link');
-        if (anchor) {
-          anchor.click();
-        }
+        const anchor = item.querySelector('a.directory-link');
+        if (anchor) anchor.click();
       }
     });
   });
 
-  // Now attach the event listeners for directories.
-  document.querySelectorAll('li.directory-item').forEach(li => {
-    li.addEventListener('click', function(e) {
-      // Only trigger if the click did not start on an <a>.
+  // Attach event listeners for file items (including images)
+  if (isImageOnly) {
+    document.querySelectorAll('.image-item').forEach(item => {
+      item.addEventListener('click', function(e) {
         if (!e.target.closest('a')) {
-        const anchor = li.querySelector('a.directory-link');
-        if (anchor) {
-          anchor.click();
-        }
+          const anchor = item.querySelector('a.image-link');
+          if (anchor) anchor.click();
         }
       });
     });
-
-  // Now attach the event listeners for files.
-  document.querySelectorAll('li.file-item').forEach(li => {
-    li.addEventListener('click', function(e) {
-      // Only trigger if the click did not start on an <a>.
+  } else {
+    document.querySelectorAll('li.file-item').forEach(item => {
+      item.addEventListener('click', function(e) {
         if (!e.target.closest('a')) {
-        const anchor = li.querySelector('a.play-file');
-        if (anchor) {
-          anchor.click();
-        }
+          const anchor = item.querySelector('a.play-file');
+          if (anchor) anchor.click();
         }
       });
     });
+  }
 
-  // Update global variable for gallery images (only image files).
+  // Update gallery images for lightbox or similar
   currentGalleryImages = data.files
     .filter(f => f.file_type === 'image')
     .map(f => f.path);
 
-  attachEventListeners(); // Reattach event listeners for newly rendered elements.
+  attachEventListeners();
 }
 
 // Fetch directory data from the API.