fix: industrial accuracy for record mode events via cross-window sync

components/record-mode/RecordModeContext.tsx

@@ -60,6 +60,15 @@ export function RecordModeProvider({ children }: { children: React.ReactNode })
   const [zoomLevel, setZoomLevel] = useState(1);
   const [isBlurry, setIsBlurry] = useState(false);
   const [isFeedbackActive, setIsFeedbackActiveState] = useState(false);
+  const [isEmbedded, setIsEmbedded] = useState(false);
+
+  useEffect(() => {
+    const embedded = typeof window !== 'undefined' &&
+      (window.location.search.includes('embedded=true') ||
+        window.name === 'record-mode-iframe' ||
+        window.self !== window.top);
+    setIsEmbedded(embedded);
+  }, []);
 
   // Synchronous mutually exclusive setters
   const setIsActive = (active: boolean) => {
@@ -102,6 +111,48 @@ export function RecordModeProvider({ children }: { children: React.ReactNode })
     }
   }, [isFeedbackActive, isActive]);
 
+  // GUEST LISTENERS: Execute events coming from host
+  useEffect(() => {
+    if (!isEmbedded) return;
+
+    const handlePlaybackMessage = (e: MessageEvent) => {
+      if (e.data.type === 'PLAY_EVENT') {
+        const { event } = e.data;
+        if (event.selector) {
+          const el = document.querySelector(event.selector) as HTMLElement;
+          if (el) {
+            if (event.type === 'scroll') {
+              el.scrollIntoView({ behavior: 'smooth', block: 'center' });
+            } else if (event.type === 'click') {
+              // Get CURRENT rect for industrial precision
+              const currentRect = el.getBoundingClientRect();
+              const eventCoords = {
+                clientX: currentRect.left + currentRect.width / 2,
+                clientY: currentRect.top + currentRect.height / 2
+              };
+
+              const dispatchMouse = (type: string) => {
+                el.dispatchEvent(new MouseEvent(type, {
+                  view: window,
+                  bubbles: true,
+                  cancelable: true,
+                  ...eventCoords
+                }));
+              };
+              dispatchMouse('mousedown');
+              dispatchMouse('mouseup');
+              dispatchMouse('click');
+              el.click();
+            }
+          }
+        }
+      }
+    };
+
+    window.addEventListener('message', handlePlaybackMessage);
+    return () => window.removeEventListener('message', handlePlaybackMessage);
+  }, [isEmbedded]);
+
   const addEvent = (event: Omit<RecordEvent, 'id' | 'timestamp'>) => {
     const newEvent: RecordEvent = {
       ...event,
@@ -151,42 +202,51 @@ export function RecordModeProvider({ children }: { children: React.ReactNode })
     for (const event of sortedEvents) {
       if (!isPlayingRef.current) break;
 
-      // 1. Move Cursor
-      if (event.rect) {
+      // 1. Move Cursor (Host logic)
+      if (event.rect && !isEmbedded) {
+        const iframe = document.querySelector('iframe[name="record-mode-iframe"]') as HTMLIFrameElement;
+        const iframeRect = iframe?.getBoundingClientRect();
+
+        // Add iframe offset to guest-relative coordinates
         setCursorPosition({
-          x: event.rect.x + event.rect.width / 2,
-          y: event.rect.y + event.rect.height / 2,
+          x: (iframeRect?.left || 0) + event.rect.x + event.rect.width / 2,
+          y: (iframeRect?.top || 0) + event.rect.y + event.rect.height / 2,
         });
       }
 
       // 2. Handle Action
       if (event.selector) {
-        const el = document.querySelector(event.selector) as HTMLElement;
-        if (el) {
-          if (event.type === 'scroll') {
-            el.scrollIntoView({ behavior: 'smooth', block: 'center' });
-          } else if (event.type === 'click') {
-            // Precise industrial click sequence: mousedown -> mouseup -> click
-            const eventCoords = {
-              clientX: event.rect ? event.rect.x + event.rect.width / 2 : 0,
-              clientY: event.rect ? event.rect.y + event.rect.height / 2 : 0
-            };
-
-            const dispatchMouse = (type: string) => {
-              el.dispatchEvent(new MouseEvent(type, {
-                view: window,
-                bubbles: true,
-                cancelable: true,
-                ...eventCoords
-              }));
-            };
-
-            dispatchMouse('mousedown');
-            dispatchMouse('mouseup');
-            dispatchMouse('click');
-
-            // Fallback for native elements
-            el.click();
+        if (!isEmbedded) {
+          // HOST: Delegate to Iframe
+          const iframe = document.querySelector('iframe[name="record-mode-iframe"]') as HTMLIFrameElement;
+          if (iframe?.contentWindow) {
+            iframe.contentWindow.postMessage({ type: 'PLAY_EVENT', event }, '*');
+          }
+        } else {
+          // GUEST (Self-execution failsafe)
+          const el = document.querySelector(event.selector) as HTMLElement;
+          if (el) {
+            if (event.type === 'scroll') {
+              el.scrollIntoView({ behavior: 'smooth', block: 'center' });
+            } else if (event.type === 'click') {
+              const currentRect = el.getBoundingClientRect();
+              const eventCoords = {
+                clientX: currentRect.left + currentRect.width / 2,
+                clientY: currentRect.top + currentRect.height / 2
+              };
+              const dispatchMouse = (type: string) => {
+                el.dispatchEvent(new MouseEvent(type, {
+                  view: window,
+                  bubbles: true,
+                  cancelable: true,
+                  ...eventCoords
+                }));
+              };
+              dispatchMouse('mousedown');
+              dispatchMouse('mouseup');
+              dispatchMouse('click');
+              el.click();
+            }
           }
         }
       }