Fassung 1.6.2: sichtbare leere Layouts und direktes Befuellen im Editor

public/assets/preview-containers.js

@@ -0,0 +1,45 @@
+import { blockLabel } from './editor-model.js';
+
+/** Editing aids are created only in the preview DOM, never in a saved block or public HTML. */
+export function decorateContainers(preview, content) {
+  const visit = (blocks, parent = null) => {
+    blocks.forEach((block, index) => {
+      const node = preview.getElementById(block.id);
+      if (node && ['section', 'row', 'column'].includes(block.type)) {
+        const label = block.type === 'column' && parent?.type === 'row'
+          ? `Spalte ${index + 1} von ${blocks.length}` : blockLabel(block);
+        node.classList.add('editor-container');
+        node.dataset.editorLabel = label;
+        if (!block.children?.length) {
+          node.classList.add('editor-empty-container');
+          const host = block.type === 'section' ? node.querySelector(':scope > .section-inner') : node;
+          if (!host) return;
+          const empty = preview.createElement('div');
+          empty.className = 'editor-empty';
+          const name = preview.createElement('span');
+          name.className = 'editor-empty-name'; name.textContent = label;
+          const hint = preview.createElement('span');
+          hint.className = 'editor-empty-hint';
+          hint.textContent = block.type === 'row' ? 'Spalte hierher ziehen oder hinzufügen' : 'Element hierher ziehen oder hinzufügen';
+          const actions = preview.createElement('div'); actions.className = 'editor-empty-actions';
+          const add = (text, attribute, value, accessibleName) => {
+            const button = preview.createElement('button');
+            button.type = 'button'; button.textContent = text;
+            button.dataset.editorTarget = block.id;
+            button.setAttribute(attribute, value);
+            button.setAttribute('aria-label', accessibleName);
+            actions.append(button);
+          };
+          add(block.type === 'row' ? '＋ Spalte hinzufügen' : '＋ Inhalt hinzufügen', 'data-editor-insert', '', `${label}: ${block.type === 'row' ? 'Spalte' : 'Inhalt'} hinzufügen`);
+          if (block.type === 'section') {
+            for (const count of [1, 2, 3, 4]) add(`${count} ${count === 1 ? 'Spalte' : 'Spalten'}`, 'data-editor-row', String(count), `${count} ${count === 1 ? 'Spalte' : 'Spalten'} in dieser Sektion anlegen`);
+          }
+          empty.append(name, hint, actions);
+          host.append(empty);
+        }
+      }
+      visit(block.children ?? [], block);
+    });
+  };
+  visit(content.blocks);
+}