Freies Layout: Board-Drag als Free-Move neu (widgets.js-Vorbild), .board.dragging auf z-index umgewidmet, Reorder-CSS (placeholder/ghost) raus

src/css/main.css

@@ -893,14 +893,8 @@ body.show-desc .bm-desc { display: block; }
 .modal-body { padding: 14px 16px; }
 .modal-footer { padding: 10px 16px 14px; display: flex; justify-content: flex-end; }
 
-.board.dragging { opacity: 0.35; }
-
-.board-placeholder {
-  border: 2px dashed var(--border-accent);
-  border-radius: var(--radius);
-  background: var(--accent-dim);
-  flex-shrink: 0;
-}
+/* Free-Move: das gezogene Board nach vorne heben (frueher Reorder-Opacity). */
+.board.dragging { z-index: 50; cursor: grabbing; }
 }
 
 
@@ -2484,11 +2478,6 @@ body.show-desc .bm-desc { display: block; }
 .hidden { display: none; }
 .accent-text { color: var(--accent); }
 .dim { opacity: 0.4; }
-.drag-ghost {
-  position: fixed; opacity: 0.75; pointer-events: none; z-index: 9999;
-  transform: rotate(1.5deg) scale(1.02);
-  box-shadow: 0 12px 40px rgba(0,0,0,0.6);
-}
 .bm-item.drag-over { background: rgba(255,160,50,0.07); }
 .bm-item.dragging-source { opacity: 0.4; }
 .about-info-label-block { display: block; margin-bottom: 6px; }

src/js/drag.js

@@ -5,95 +5,61 @@
    Bookmarks: Reihenfolge innerhalb eines Boards
    ============================================= */
 
-// ---- BOARD DRAG (Pointer Events) ----
+// ---- BOARD FREE-MOVE (Pointer Events) ----
+// Neugebaut fuer v2.3 (frueher Reorder mit Ghost/Placeholder). Vorbild:
+// widgets.js _initDrag — setPointerCapture, offX/offY, onMove mit Clamping
+// gegen window.innerWidth/Height, onUp schreibt board.pos + saveBoards().
+// Gebunden am .board-drag-handle, NICHT am ganzen .board, damit Bookmark-Drag,
+// Klick-Delegation und Action-Buttons frei bleiben.
 function initBoardDragDrop() {
   const wrapper = document.getElementById('boardsWrapper');
-  let dragging  = null;
-  let placeholder = null;
-
-  function getInsertTarget(clientX, clientY) {
-    const boardEls = Array.from(wrapper.querySelectorAll('.board:not(.dragging)'));
-    for (const b of boardEls) {
-      const r = b.getBoundingClientRect();
-      if (clientX >= r.left && clientX <= r.right && clientY >= r.top && clientY <= r.bottom) {
-        return { el: b, before: clientX < r.left + r.width / 2 };
-      }
-    }
-    return null;
-  }
 
   wrapper.querySelectorAll('.board').forEach(boardEl => {
     const handle = boardEl.querySelector('.board-drag-handle');
     if (!handle) return;
 
-    handle.style.cursor = 'grab';
-
-    handle.addEventListener('pointerdown', e => {
+    handle.addEventListener('pointerdown', function onDown(e) {
+      // Auf Mobil ist .board position:static (Stapel) -> kein Free-Move.
+      if (getComputedStyle(boardEl).position !== 'absolute') return;
       e.preventDefault();
       handle.setPointerCapture(e.pointerId);
-      handle.style.cursor = 'grabbing';
-
-      const rect = boardEl.getBoundingClientRect();
-
-      // Ghost
-      const ghost = boardEl.cloneNode(true);
-      ghost.className += ' drag-ghost';
-      ghost.style.left = rect.left + 'px';
-      ghost.style.top = rect.top + 'px';
-      ghost.style.width = rect.width + 'px';
-      ghost.style.height = rect.height + 'px';
-      document.body.appendChild(ghost);
-
-      // Placeholder
-      placeholder = document.createElement('div');
-      placeholder.className = 'board-placeholder';
-      placeholder.style.cssText = `width:${rect.width}px; height:${rect.height}px;`;
-      boardEl.parentNode.insertBefore(placeholder, boardEl);
+      // .board.dragging hebt das Board per CSS nach vorne (z-index) UND ist das Signal fuer den
+      // Live-Sync-Guard in app.js (bindStorageSync verwirft ein onChanged-Re-Render, das diesen
+      // Drag sonst abreissen wuerde). Der Guard prueft genau diese Klasse (Phase-4-Review 2a).
       boardEl.classList.add('dragging');
 
-      dragging = { el: boardEl, ghost,
-        offsetX: e.clientX - rect.left,
-        offsetY: e.clientY - rect.top
-      };
-    });
+      const rect = boardEl.getBoundingClientRect();
+      const offX = e.clientX - rect.left;
+      const offY = e.clientY - rect.top;
 
-    handle.addEventListener('pointermove', e => {
-      if (!dragging || dragging.el !== boardEl) return;
-      e.preventDefault();
-      dragging.ghost.style.left = (e.clientX - dragging.offsetX) + 'px';
-      dragging.ghost.style.top  = (e.clientY - dragging.offsetY) + 'px';
-
-      const target = getInsertTarget(e.clientX, e.clientY);
-      if (target && target.el !== boardEl) {
-        target.before
-          ? target.el.parentNode.insertBefore(placeholder, target.el)
-          : target.el.parentNode.insertBefore(placeholder, target.el.nextSibling);
+      function onMove(ev) {
+        const maxX = window.innerWidth - boardEl.offsetWidth;
+        const maxY = window.innerHeight - boardEl.offsetHeight;
+        const x = Math.max(0, Math.min(maxX, ev.clientX - offX));
+        const y = Math.max(48, Math.min(maxY, ev.clientY - offY)); // 48px = Header-Hoehe
+        boardEl.style.setProperty('--board-x', x + 'px');
+        boardEl.style.setProperty('--board-y', y + 'px');
       }
-    });
 
-    handle.addEventListener('pointerup', async () => {
-      if (!dragging || dragging.el !== boardEl) return;
-      handle.style.cursor = 'grab';
-      placeholder.parentNode.insertBefore(boardEl, placeholder);
-      placeholder.remove(); placeholder = null;
-      boardEl.classList.remove('dragging');
-      dragging.ghost.remove();
-      dragging = null;
+      async function onUp() {
+        handle.releasePointerCapture(e.pointerId);
+        handle.removeEventListener('pointermove', onMove);
+        handle.removeEventListener('pointerup', onUp);
+        boardEl.classList.remove('dragging'); // z-index zurueck + Live-Sync-Guard freigeben
 
-      // Neue Reihenfolge aus DOM ablesen
-      const newOrder = Array.from(wrapper.querySelectorAll('.board'))
-        .map(el => el.dataset.boardId).filter(Boolean);
-      boards.sort((a, b) => newOrder.indexOf(a.id) - newOrder.indexOf(b.id));
+        const id = boardEl.dataset.boardId;
+        const board = boards.find(b => b.id === id);
+        if (board) {
+          board.pos = {
+            x: parseFloat(boardEl.style.getPropertyValue('--board-x')),
+            y: parseFloat(boardEl.style.getPropertyValue('--board-y'))
+          };
           await saveBoards();
-    });
+        }
+      }
 
-    handle.addEventListener('pointercancel', () => {
-      if (!dragging) return;
-      dragging.ghost.remove();
-      if (placeholder) { placeholder.remove(); placeholder = null; }
-      boardEl.classList.remove('dragging');
-      dragging = null;
-      handle.style.cursor = 'grab';
+      handle.addEventListener('pointermove', onMove);
+      handle.addEventListener('pointerup', onUp);
     });
   });
 }