improved image loading animation

static/css/style-imageloading.css

@@ -0,0 +1,63 @@
+/* Image Loading Effect */
+.loading-image {
+    position: relative;
+    overflow: hidden;
+    background-color: var(--snip-background);
+    background-image: linear-gradient(
+        90deg,
+        rgba(255, 255, 255, 0) 25%,
+        rgba(255, 255, 255, 0.15) 50%,
+        rgba(255, 255, 255, 0) 75%
+    );
+    background-size: 200% 100%;
+    animation: image-wave 2s infinite linear;
+}
+
+/* Title Loading Effect */
+.title-loading {
+    position: relative;
+    overflow: hidden;
+    color: transparent !important;
+    background-color: var(--snip-background);
+    min-height: 1.2em;
+    width: 80%;
+    margin: 0 auto;
+    top: 2px;
+    border-radius: 6px;
+}
+
+.title-loading::after {
+    content: '';
+    position: absolute;
+    top: 0;
+    left: 0;
+    width: 100%;
+    height: 100%;
+    background: linear-gradient(
+        90deg,
+        transparent 25%,
+        rgba(255, 255, 255, 0.25) 50%,
+        transparent 75%
+    );
+    background-size: 200% 100%;
+    animation: title-wave 2.5s infinite linear;
+}
+
+/* Animations */
+@keyframes image-wave {
+    0% {
+        background-position: -100% 0; /* Start off-screen left */
+    }
+    100% {
+        background-position: 100% 0; /* End off-screen right */
+    }
+}
+
+@keyframes title-wave {
+    0% {
+        background-position: -100% 0; /* Start off-screen left */
+    }
+    100% {
+        background-position: 100% 0; /* End off-screen right */
+    }
+}

static/js/dynamicscrollingimages.js

@@ -1,5 +1,40 @@
+// dynamicscrollingimages.js
 (function() {
-    // Configuration
+    // Add loading effects to image and title
+    function addLoadingEffects(imgElement) {
+        const title = imgElement.closest('.image').querySelector('.img_title');
+        imgElement.classList.add('loading-image');
+        title.classList.add('title-loading');
+    }
+
+    function removeLoadingEffects(imgElement) {
+        const title = imgElement.closest('.image').querySelector('.img_title');
+        imgElement.classList.remove('loading-image');
+        title.classList.remove('title-loading');
+        
+        if (imgElement.src.endsWith('/images/missing.svg')) {
+            imgElement.closest('.image').remove();
+        }
+    }
+
+    // Modified handleImageError with theme-consistent error handling
+    function handleImageError(imgElement, retryCount = 3, retryDelay = 1000) {
+        const container = imgElement.closest('.image');
+        const title = container.querySelector('.img_title');
+        
+        if (retryCount > 0) {
+            setTimeout(() => {
+                imgElement.src = imgElement.getAttribute('data-full');
+                imgElement.onerror = () => handleImageError(imgElement, retryCount - 1, retryDelay);
+            }, retryDelay);
+        } else {
+            imgElement.classList.remove('loading-image');
+            title.classList.remove('title-loading');
+            container.style.display = 'none';
+        }
+    }
+
+    // Rest of your existing code with minor additions
     const imageStatusInterval = 500;
     const scrollThreshold = 500;
     const loadingIndicator = document.getElementById('message-bottom-left');
@@ -14,18 +49,6 @@
     let imageIds = [];
     let imageStatusTimer;
 
-    function handleImageError(imgElement, retryCount = 3, retryDelay = 1000) {
-        if (retryCount > 0) {
-            setTimeout(() => {
-                imgElement.src = imgElement.getAttribute('data-full');
-                imgElement.onerror = () => handleImageError(imgElement, retryCount - 1, retryDelay);
-            }, retryDelay);
-        } else {
-            console.warn('Image failed to load:', imgElement.getAttribute('data-full'));
-            imgElement.parentElement.style.display = 'none';
-        }
-    }
-
     function ensureScrollable() {
         if (noMoreImages) return;
         if (document.body.scrollHeight <= window.innerHeight) {
@@ -59,21 +82,21 @@
 
                         let img = clonedImageDiv.querySelector('img');
                         if (img && img.getAttribute('data-id')) {
+                            addLoadingEffects(img);
                             if (hardCacheEnabled) {
-                                img.src = '/static/images/placeholder.svg';
+                                img.src = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII=';
                                 img.onerror = () => handleImageError(img);
                                 imageElements.push(img);
                                 imageIds.push(img.getAttribute('data-id'));
                             } else {
                                 img.src = img.getAttribute('data-full');
+                                img.onload = () => removeLoadingEffects(img);
                                 img.onerror = () => handleImageError(img);
                             }
                         }
                     });
 
-                    if (hardCacheEnabled) {
-                        checkImageStatus(); // Immediately check status for new images
-                    }
+                    if (hardCacheEnabled) checkImageStatus();
                     ensureScrollable();
                 } else {
                     noMoreImages = true;
@@ -101,6 +124,7 @@
                     const id = img.getAttribute('data-id');
                     if (statusMap[id]) {
                         img.src = statusMap[id];
+                        img.onload = () => removeLoadingEffects(img);
                         img.onerror = () => handleImageError(img);
                     } else {
                         pendingImages.push(img);
@@ -117,21 +141,24 @@
             });
     }
 
-    // Initialize
+    // Initialize with loading effects
     document.querySelectorAll('img[data-id]').forEach(img => {
         const id = img.getAttribute('data-id');
         if (id) {
+            addLoadingEffects(img);
             imageElements.push(img);
             imageIds.push(id);
             if (hardCacheEnabled) {
-                img.src = '/static/images/placeholder.svg';
+                img.src = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII=';
             } else {
                 img.src = img.getAttribute('data-full');
+                img.onload = () => removeLoadingEffects(img);
             }
             img.onerror = () => handleImageError(img);
         }
     });
 
+    // Rest of your existing code remains unchanged
     if (hardCacheEnabled) {
         imageStatusTimer = setInterval(checkImageStatus, imageStatusInterval);
         checkImageStatus();
@@ -145,7 +172,6 @@
         }
     });
 
-    // Cleanup
     window.addEventListener('beforeunload', () => {
         if (imageStatusTimer) clearInterval(imageStatusTimer);
     });

static/js/imageviewer.js

@@ -29,7 +29,7 @@ document.addEventListener('DOMContentLoaded', function() {
             </div>
             <p class="image-alt" id="viewer-title"></p>
             <br>
-            <div class="search-type-icons" style="display:flex; justify-content:center; gap:15px; flex-wrap: wrap;">
+            <div class="search-type-icons" style="display:flex; justify-content:center; flex-wrap: wrap;">
                 <div class="icon-button">
                     <button class="material-icons-round clickable btn-nostyle" id="viewer-copy-link">
                         <span class="material-icons-round">&#xe37c;</span>

templates/images.html

@@ -15,6 +15,7 @@
             }
         </style>
     </noscript>
+    <link rel="stylesheet" href="/static/css/style-imageloading.css">
     <link rel="stylesheet" href="/static/css/style-imageviewer.css">
     <link rel="stylesheet" href="/static/css/style-fixedwidth.css">
     <link rel="stylesheet" href="/static/css/style-menu.css">