Fassung 1.6.2: sichtbare leere Layouts und direktes Befuellen im Editor

public/assets/editor.js

@@ -4,6 +4,7 @@ import { createDesignPanel } from './design-panel.js';
 import { createRichText } from './rich-text.js';
 import { createCanvasOverlay } from './canvas-overlay.js';
 import { preview, rowPreview } from './library-previews.js';
+import { decorateContainers } from './preview-containers.js';
 
 // Mirrors DocumentValidator::ICONS; the server rejects anything outside this list.
 const ICONS = ['app', 'web', 'design', 'network', 'hardware', 'shop', 'support', 'shield', 'clock', 'star', 'phone', 'mail', 'pin', 'check'];
@@ -24,6 +25,7 @@ let device = 'desktop', propertyPanel = 'content', designTokens, designSchema, d
 let previewScale = 1, overlay = null, pendingInsert = null;
 const collapsed = new Set();
 let renderedProperties = null;
+let revealAfterPreview = null;
 
 function notify(message = '', recover = false) {
   $('#message').textContent = message;
@@ -114,6 +116,7 @@ function renderTree() {
 
 function choose(id, scroll = true) {
   if (busy) return;
+  if (id !== selected && pendingInsert) setPendingInsert(null);
   selected = locate(history.document.blocks, id) ? id : null;
   blockPath(history.document.blocks, selected).slice(0, -1).forEach(block => collapsed.delete(block.id));
   if (!selected) propertyPanel = 'content';
@@ -595,7 +598,13 @@ async function updatePreview() {
       const doc = frame.contentDocument;
       if (!doc || doc === altesDokument || !doc.getElementById('kant-styles')) return;
       angewandt = true;
-      const style = doc.createElement('link'); style.rel = 'stylesheet'; style.href = '/assets/preview.css'; doc.head.append(style);
+      const style = doc.createElement('link'); style.rel = 'stylesheet'; style.href = `/assets/preview.css?v=${new URL(import.meta.url).searchParams.get('v') ?? 'dev'}`;
+      // Register before insertion: cached loads (or errors) can precede DOMContentLoaded.
+      const styleReady = new Promise(resolve => {
+        style.addEventListener('load', () => resolve(true), { once: true });
+        style.addEventListener('error', () => resolve(false), { once: true });
+      });
+      doc.head.append(style);
       // The preview delivers the generated stylesheet as inert template text (see page.html.twig).
       // Applying it as a constructed stylesheet is not a source in the sense of the policy, so the
       // preview shows exactly what the published page shows, without a single blocked style.
@@ -607,6 +616,22 @@ async function updatePreview() {
       }
       doc.addEventListener('click', event => {
         event.preventDefault();
+        const insert = event.target.closest('[data-editor-target]');
+        if (insert && !busy && history) {
+          stopInlineEdit();
+          const id = insert.dataset.editorTarget;
+          if (!locate(history.document.blocks, id)) return;
+          choose(id, false);
+          if (insert.hasAttribute('data-editor-row')) {
+            setPendingInsert(null);
+            selected = history.change(content => insertRowAt(content, Number(insert.dataset.editorRow), id, 0));
+            propertyPanel = 'content'; changed();
+          } else if (locate(history.document.blocks, id).block.type === 'row') {
+            selected = history.change(content => insertBlockAt(content, 'column', id, 0));
+            changed();
+          } else setPendingInsert({ parentId: id, index: 0 });
+          return;
+        }
         if (inlineEdit) return;
         const element = event.target.closest('[id]');
         if (element && locate(history.document.blocks, element.id)) choose(element.id, false);
@@ -618,12 +643,23 @@ async function updatePreview() {
         if (block && INLINE_TEXT[block.type]) { event.preventDefault(); choose(element.id, false); startInlineEdit(element.id); }
       });
       doc.addEventListener('submit', event => event.preventDefault());
-      // Every refresh is a new document, so the layer above it has to bind to it again.
-      overlay?.attach();
-      frame.contentWindow.scrollTo(0, top); highlight();
-      // Erst jetzt ansehen lassen: bis hierher zeigte das Fenster eine Seite ohne Gestaltung.
-      frame.style.visibility = '';
-      $('#preview-status').textContent = 'Entwurf · Klicken wählt aus, Doppelklick bearbeitet Text, Elemente lassen sich hierher ziehen.';
+      // The head may arrive before the blocks. Decorate only once the complete DOM exists.
+      const finish = () => {
+        if (sequence !== previewSequence || doc !== frame.contentDocument) return;
+        decorateContainers(doc, history.document);
+        overlay?.attach();
+        styleReady.then(loaded => {
+          if (sequence !== previewSequence || doc !== frame.contentDocument) return;
+          frame.contentWindow.scrollTo(0, top);
+          highlight(revealAfterPreview === selected); revealAfterPreview = null;
+          markInsertTarget();
+          frame.style.visibility = '';
+          $('#preview-status').textContent = loaded
+            ? 'Entwurf · Klicken wählt aus, Doppelklick bearbeitet Text, Elemente lassen sich hierher ziehen.'
+            : 'Editor-Hilfsflächen konnten nicht geladen werden. Bitte den Editor neu laden.';
+        });
+      };
+      if (doc.readyState === 'loading') doc.addEventListener('DOMContentLoaded', finish, { once: true }); else finish();
     };
     // Solange die Gestaltung fehlt, bleibt die Fläche leer statt falsch.
     frame.style.visibility = 'hidden';
@@ -654,6 +690,7 @@ async function updatePreview() {
 
 function changed() {
   if (!locate(history.document.blocks, selected)) selected = null;
+  if (selected && !$('#preview').contentDocument?.getElementById(selected)) revealAfterPreview = selected;
   renderTree(); renderProperties(); controls(); schedulePreview();
 }
 
@@ -727,12 +764,23 @@ function setPendingInsert(target) {
   updateLibrary();
   $('#toolbox').classList.toggle('awaiting-insert', Boolean(target));
   $('#insert-hint').hidden = !target;
+  markInsertTarget();
   if (target) {
     if ($('#toolbox').hidden) $('#toggle-library').click();
-    $('#toolbox').scrollIntoView({ block: 'nearest' });
+    $('#library-search').value = ''; filterLibrary();
+    const name = target.parentId ? $('#preview').contentDocument?.getElementById(target.parentId)?.dataset.editorLabel || blockLabel(locate(history.document.blocks, target.parentId)?.block) : 'Seite';
+    $('#insert-hint').firstChild.textContent = `Einfügen in ${name}. Wähle jetzt ein Element. `;
+    $('#library-search').focus({ preventScroll: true });
+    $('#library-search').scrollIntoView({ block: 'nearest' });
   }
 }
 
+function markInsertTarget() {
+  const doc = $('#preview').contentDocument;
+  doc?.querySelectorAll('.editor-insert-target').forEach(node => node.classList.remove('editor-insert-target'));
+  if (pendingInsert?.parentId) doc?.getElementById(pendingInsert.parentId)?.classList.add('editor-insert-target');
+}
+
 // ---------------------------------------------------------------------------------------------
 // The toolbox.
 //