feat: Enable moving and dragging selected folders, including mixed document and folder selections, with updated drag preview visuals and minor UI styling.

frontend/src/documents/SelectionFloatingActions.tsx

@@ -360,12 +360,13 @@ const SelectionFloatingActions: React.FC<SelectionFloatingActionsProps> = ({
 
   const handleMoveSelectionToFolder = useCallback(
     async (folderId: DocumentId | null) => {
-      if (!documentIdList.length || !onMoveDocumentsToFolder) {
+      const itemsToMove = [...documentIdList, ...folderIdList];
+      if (!itemsToMove.length || !onMoveDocumentsToFolder) {
         return;
       }
-      await onMoveDocumentsToFolder(documentIdList, folderId);
+      await onMoveDocumentsToFolder(itemsToMove, folderId);
     },
-    [documentIdList, onMoveDocumentsToFolder],
+    [documentIdList, folderIdList, onMoveDocumentsToFolder],
   );
 
   const summaryNode = totalCount > 0 ? (
@@ -395,7 +396,7 @@ const SelectionFloatingActions: React.FC<SelectionFloatingActionsProps> = ({
       placeholder="Search folders…"
       emptyMessage="No folders"
       onSelectFolder={handleMoveSelectionToFolder}
-      disabled={!documentCount}
+      disabled={!documentCount && !folderCount}
       onOpenMenu={handleMoveMenuOpen}
       rootTitle={rootTitle}
     />

frontend/src/hooks/documents/useDocumentDragHandlers.ts

@@ -58,7 +58,7 @@ const useDocumentDragHandlers = ({
   useEffect(() => destroyDragPreview, [destroyDragPreview]);
 
   const createDragPreview = useCallback(
-    ({ documents = [], folders = [] }: { documents?: Document[]; folders?: FolderIdentifier[] } = {}) => {
+    ({ documents = [], folders = [], prioritizeFolders = false }: { documents?: Document[]; folders?: FolderIdentifier[]; prioritizeFolders?: boolean } = {}) => {
       destroyDragPreview();
 
       const docEntries = (documents || []).filter(Boolean);
@@ -72,15 +72,44 @@ const useDocumentDragHandlers = ({
       const size = 64;
       const canvasSize = Math.round(size * 1.6);
 
-      const visibleItems = [];
-      docEntries.slice(0, maxVisible).forEach((doc) => {
-        visibleItems.push({ type: 'document', payload: doc });
-      });
+      const visibleItems: Array<{ type: 'document' | 'folder'; payload: any }> = [];
 
-      if (visibleItems.length < maxVisible) {
-        folderEntries
-          .slice(0, maxVisible - visibleItems.length)
-          .forEach((folderId) => visibleItems.push({ type: 'folder', payload: folderId }));
+      let takeDocs = 0;
+      let takeFolders = 0;
+
+      if (docEntries.length > 0 && folderEntries.length > 0) {
+        if (prioritizeFolders) {
+          // Folders on top (added last)
+          takeDocs = Math.min(docEntries.length, maxVisible - 1);
+          takeFolders = Math.min(folderEntries.length, maxVisible - takeDocs);
+        } else {
+          // Docs on top (added last)
+          takeFolders = Math.min(folderEntries.length, maxVisible - 1);
+          takeDocs = Math.min(docEntries.length, maxVisible - takeFolders);
+        }
+      } else {
+        takeDocs = Math.min(docEntries.length, maxVisible);
+        takeFolders = Math.min(folderEntries.length, maxVisible - takeDocs);
+      }
+
+      if (prioritizeFolders) {
+        // Docs at bottom
+        docEntries.slice(0, takeDocs).forEach((doc) => {
+          visibleItems.push({ type: 'document', payload: doc });
+        });
+        // Folders at top
+        folderEntries.slice(0, takeFolders).forEach((folderId) => {
+          visibleItems.push({ type: 'folder', payload: folderId });
+        });
+      } else {
+        // Folders at bottom
+        folderEntries.slice(0, takeFolders).forEach((folderId) => {
+          visibleItems.push({ type: 'folder', payload: folderId });
+        });
+        // Docs at top
+        docEntries.slice(0, takeDocs).forEach((doc) => {
+          visibleItems.push({ type: 'document', payload: doc });
+        });
       }
 
       const wrapper = document.createElement('div');
@@ -152,16 +181,18 @@ const useDocumentDragHandlers = ({
           layer.style.height = `${size}px`;
           layer.classList.add('document-drag-preview__item--folder');
 
-          let content: HTMLElement | null = null;
+          let content: HTMLElement | SVGElement | null = null;
           if (iconEl instanceof HTMLElement) {
             const cloneSource = iconEl.classList.contains('folder-card__icon')
               ? iconEl.querySelector('svg') || iconEl
               : iconEl;
             const clone = cloneSource.cloneNode(true);
-            if (clone instanceof HTMLElement) {
-              content = clone;
+            if (clone instanceof HTMLElement || clone instanceof SVGElement) {
+              content = clone as HTMLElement | SVGElement;
               content.classList.add('document-drag-preview__folder-thumb');
-              const svg = content.querySelector('svg');
+              const svg = content.nodeName.toLowerCase() === 'svg'
+                ? content
+                : content.querySelector('svg');
               if (svg) {
                 svg.setAttribute('width', '48');
                 svg.setAttribute('height', '48');
@@ -213,7 +244,11 @@ const useDocumentDragHandlers = ({
       const selection: Identifier[] = isAlreadySelected
         ? [...selectedDocumentIds]
         : [documentId];
-      const folderSelection: FolderIdentifier[] = [];
+
+      // If the document is part of the selection, we also want to include any selected folders
+      const folderSelection: FolderIdentifier[] = isAlreadySelected
+        ? normalizedFolderIds
+        : [];
 
       if (!isAlreadySelected) {
         applySelection([documentKey], {
@@ -228,6 +263,7 @@ const useDocumentDragHandlers = ({
       const previewNode = createDragPreview({
         documents: previewDocs,
         folders: folderSelection,
+        prioritizeFolders: false,
       });
 
       setDraggedDocumentIds(selection);
@@ -266,6 +302,7 @@ const useDocumentDragHandlers = ({
       createDragPreview,
       setDraggedFolderId,
       setDraggedDocumentIds,
+      normalizedFolderIds,
     ],
   );
 
@@ -331,6 +368,7 @@ const useDocumentDragHandlers = ({
           .map((id) => documentLookup.get(id) || documentLookup.get(String(id)) || null)
           .filter(Boolean),
         folders: uniqueFolders,
+        prioritizeFolders: true,
       });
       event.currentTarget.classList.add('dragging');
 

frontend/src/styles/detail/detail-panels.css

@@ -852,4 +852,9 @@
 .menu .selection-assignment__item--empty:focus-visible {
   background: transparent;
   cursor: default;
+}
+
+.selection-assignment__item--empty .selection-assignment__item-content {
+  opacity: 0.5;
+  cursor: default;
 }

frontend/src/styles/documents/listing.css

@@ -254,8 +254,8 @@
   text-align: left;
 }
 
-.documents-panel--view-grid {
-  padding: 0.35rem 0.5rem 1rem;
+.documents-panel .documents-grid {
+  padding: 1rem 0.5rem;
 }
 
 .documents-panel th.thumb-column,