feat: code by Trae: bookshelf

Author: dfface

README.md

@@ -60,6 +60,14 @@ It now supports the following features:
 
 - **Cache management**: Update button in library to clear Service Worker cache and refresh content.
 
+- **Bookshelf**: Personal bookshelf with grouping support (non-Kindle mode only). Features include:
+  - Add/remove books to shelf from book detail page
+  - Create nested groups for organization
+  - Tag-based filtering within shelf and groups
+  - Drag-and-drop sorting for books and groups
+  - Export/import shelf data as JSON (supports both file upload and URL import)
+  - Statistics showing book and group counts
+
 
 ## Usage
 

epub_browser/assets/book.css

@@ -7,6 +7,7 @@
     --gray: #6c757d;
     --gray-light: #e9ecef;
     --success: #4cc9f0;
+    --danger: #e63946;
     --border-radius: 12px;
     --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
     --transition: all 0.3s ease;
@@ -171,6 +172,7 @@ body {
     font-size: 0.9rem;
     text-align: center;
     white-space: nowrap;
+    margin-bottom: 4px;
 }
 
 .css-btn.primary {
@@ -193,7 +195,7 @@ body {
     border-radius: 6px;
     color: white;
     font-weight: 600;
-    z-index: 1000;
+    z-index: 10003;
     box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
     transition: all 0.3s ease;
 }
@@ -584,6 +586,157 @@ body {
     #clearReadingProgressBtn {
         font-size: 0.5rem;
     }
+    
+    #toggleShelfBtn {
+        font-size: 0.5rem;
+    }
+}
+
+/* 书架按钮样式 */
+#toggleShelfBtn {
+    margin-right: 10px;
+}
+
+#toggleShelfBtn.in-shelf {
+    background: var(--danger);
+}
+
+#toggleShelfBtn.in-shelf:hover {
+    background: #c0392b;
+}
+
+/* 选择分组弹窗样式 */
+.select-group-modal {
+    position: fixed;
+    top: 0;
+    left: 0;
+    width: 100%;
+    height: 100%;
+    background-color: rgba(0, 0, 0, 0.5);
+    display: none;
+    justify-content: center;
+    align-items: center;
+    z-index: 10002;
+}
+
+.select-group-modal.active {
+    display: flex;
+}
+
+.select-group-content {
+    width: 90%;
+    max-width: 500px;
+    max-height: 80vh;
+    background: var(--card-bg);
+    border-radius: var(--border-radius);
+    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
+    display: flex;
+    flex-direction: column;
+}
+
+.select-group-header {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    padding: 15px 20px;
+    border-bottom: 1px solid var(--border-color);
+    flex-shrink: 0;
+}
+
+.select-group-header h3 {
+    margin: 0;
+    color: var(--text-color);
+}
+
+.select-group-close-btn {
+    width: 32px;
+    height: 32px;
+    background: var(--border-color);
+    border: none;
+    border-radius: 50%;
+    cursor: pointer;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    transition: var(--transition);
+    color: var(--text-color);
+}
+
+.select-group-close-btn:hover {
+    background: var(--danger);
+    color: white;
+}
+
+.select-group-body {
+    padding: 20px;
+    overflow-y: auto;
+    flex: 1;
+}
+
+.select-group-tree {
+    display: flex;
+    flex-direction: column;
+    gap: 8px;
+}
+
+.select-group-item {
+    display: flex;
+    align-items: center;
+    padding: 10px 15px;
+    background: var(--bg-color);
+    border-radius: 6px;
+    cursor: pointer;
+    transition: var(--transition);
+    border: 2px solid transparent;
+    color: var(--text-color);
+}
+
+.select-group-item:hover {
+    background: var(--primary-light);
+    color: white;
+}
+
+.select-group-item.selected {
+    border-color: var(--primary);
+    background: var(--primary-light);
+    color: white;
+}
+
+.select-group-item-icon {
+    margin-right: 10px;
+    font-size: 1rem;
+}
+
+.select-group-item-name {
+    font-size: 0.95rem;
+    font-weight: 500;
+}
+
+.select-group-footer {
+    padding: 15px 20px;
+    border-top: 1px solid var(--border-color);
+    display: flex;
+    justify-content: flex-end;
+    flex-shrink: 0;
+}
+
+.select-group-confirm-btn {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    gap: 8px;
+    padding: 12px 24px;
+    background: var(--primary);
+    color: white;
+    border: none;
+    border-radius: 6px;
+    cursor: pointer;
+    font-size: 0.95rem;
+    transition: var(--transition);
+}
+
+.select-group-confirm-btn:hover {
+    background: var(--primary-light);
 }
 
 /* 加载动画样式 */