Show component-indicator selection badge in the canvas

.component-indicator existed in editor.css but was never rendered anywhere. Add RenderNode.tsx as a Craft.js <Editor onRender> override and wire it in App.tsx: for the currently-selected node (excluding ROOT) it portals a floating badge showing the node's displayName plus a "select parent" chevron wired to actions.selectNode(parentId). Every other node's render passes through untouched (a Fragment, no extra DOM), and the badge portals to document.body positioned via getBoundingClientRect rather than wrapping nodes in extra DOM, so it can't perturb canvas layout and never appears in toHtml export. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-12 20:15:08 -07:00
parent 458069afb6
commit 05e00c572d
4 changed files with 214 additions and 3 deletions
@@ -0,0 +1,76 @@
+import React, { useCallback, useEffect, useRef } from 'react';
+import { createPortal } from 'react-dom';
+import { useEditor, useNode } from '@craftjs/core';
+
+interface RenderNodeProps {
+  render: React.ReactElement;
+}
+
+/**
+ * Craft.js `<Editor onRender>` override -- wraps every node's render output.
+ * For the currently-selected node it portals a floating badge (component
+ * displayName + a "select parent" chevron) positioned over the node's real
+ * DOM element. Non-selected nodes (the overwhelming majority) and ROOT pass
+ * straight through as a Fragment, so this never touches layout, never
+ * appears in `toHtml` export (that walks the Craft node tree, not this
+ * portal), and doesn't wrap every node in extra DOM.
+ */
+export const RenderNode: React.FC<RenderNodeProps> = ({ render }) => {
+  const { actions } = useEditor();
+  const { id, isSelected, dom, name, parent } = useNode((node) => ({
+    isSelected: node.events.selected,
+    dom: node.dom,
+    name: node.data.custom?.displayName || node.data.displayName,
+    parent: node.data.parent,
+  }));
+
+  const badgeRef = useRef<HTMLDivElement>(null);
+  const active = isSelected && id !== 'ROOT' && !!dom;
+
+  const updatePosition = useCallback(() => {
+    if (!dom || !badgeRef.current) return;
+    const rect = dom.getBoundingClientRect();
+    const badgeHeight = 22;
+    badgeRef.current.style.left = `${Math.max(rect.left, 0)}px`;
+    badgeRef.current.style.top = `${Math.max(rect.top - badgeHeight, 0)}px`;
+  }, [dom]);
+
+  useEffect(() => {
+    if (!active) return;
+    updatePosition();
+    window.addEventListener('resize', updatePosition);
+    document.addEventListener('scroll', updatePosition, true);
+    return () => {
+      window.removeEventListener('resize', updatePosition);
+      document.removeEventListener('scroll', updatePosition, true);
+    };
+  }, [active, updatePosition]);
+
+  if (!active) return <>{render}</>;
+
+  return (
+    <>
+      {render}
+      {createPortal(
+        <div ref={badgeRef} className="component-indicator" style={{ position: 'fixed' }}>
+          <span>{name}</span>
+          {parent && (
+            <button
+              type="button"
+              className="component-indicator-parent-btn"
+              title="Select parent"
+              aria-label={`Select parent of ${name}`}
+              onMouseDown={(e) => {
+                e.stopPropagation();
+                actions.selectNode(parent);
+              }}
+            >
+              <i className="fa fa-chevron-up" aria-hidden />
+            </button>
+          )}
+        </div>,
+        document.body
+      )}
+    </>
+  );
+};