fix: ensure dragging/resizing an element on the timeline doesn't deselect it

apps/web/src/components/editor/timeline.tsx

@@ -78,7 +78,6 @@ export function Timeline() {
     snappingEnabled,
     toggleSnapping,
     dragState,
-    justFinishedDragging,
   } = useTimelineStore();
   const { mediaItems, addMediaItem } = useMediaStore();
   const { activeProject } = useProjectStore();
@@ -92,6 +91,14 @@ export function Timeline() {
   const rulerRef = useRef<HTMLDivElement>(null);
   const [isInTimeline, setIsInTimeline] = useState(false);
 
+  // Track mouse down/up for distinguishing clicks from drag/resize ends
+  const mouseTrackingRef = useRef({
+    isMouseDown: false,
+    downX: 0,
+    downY: 0,
+    downTime: 0,
+  });
+
   // Timeline zoom functionality
   const { zoomLevel, setZoomLevel, handleWheel } = useTimelineZoom({
     containerRef: timelineRef,
@@ -158,16 +165,69 @@ export function Timeline() {
     setCurrentSnapPoint(snapPoint);
   }, []);
 
+  // Track mouse down to distinguish real clicks from drag/resize ends
+  const handleTimelineMouseDown = useCallback((e: React.MouseEvent) => {
+    // Only track mouse down on timeline background areas (not elements)
+    const target = e.target as HTMLElement;
+    const isTimelineBackground =
+      !target.closest(".timeline-element") &&
+      !playheadRef.current?.contains(target) &&
+      !target.closest("[data-track-labels]");
+
+    if (isTimelineBackground) {
+      mouseTrackingRef.current = {
+        isMouseDown: true,
+        downX: e.clientX,
+        downY: e.clientY,
+        downTime: e.timeStamp,
+      };
+    }
+  }, []);
+
   // Timeline content click to seek handler
   const handleTimelineContentClick = useCallback(
     (e: React.MouseEvent) => {
-      // Don't seek if this was a selection box operation
-      if (isSelecting || justFinishedSelecting) {
+      const { isMouseDown, downX, downY, downTime } = mouseTrackingRef.current;
+
+      // Reset mouse tracking
+      mouseTrackingRef.current = {
+        isMouseDown: false,
+        downX: 0,
+        downY: 0,
+        downTime: 0,
+      };
+
+      // Only process as click if we tracked a mouse down on timeline background
+      if (!isMouseDown) {
+        console.log(
+          JSON.stringify({
+            ignoredClickWithoutMouseDown: true,
+            timeStamp: e.timeStamp,
+          })
+        );
         return;
       }
 
-      // Don't seek if we just finished dragging an element
-      if (justFinishedDragging) {
+      // Check if mouse moved significantly (indicates drag, not click)
+      const deltaX = Math.abs(e.clientX - downX);
+      const deltaY = Math.abs(e.clientY - downY);
+      const deltaTime = e.timeStamp - downTime;
+
+      if (deltaX > 5 || deltaY > 5 || deltaTime > 500) {
+        console.log(
+          JSON.stringify({
+            ignoredDragNotClick: true,
+            deltaX,
+            deltaY,
+            deltaTime,
+            timeStamp: e.timeStamp,
+          })
+        );
+        return;
+      }
+
+      // Don't seek if this was a selection box operation
+      if (isSelecting || justFinishedSelecting) {
         return;
       }
 
@@ -187,19 +247,6 @@ export function Timeline() {
         return;
       }
 
-      // MAIN FIX: Only seek on direct clicks to timeline background areas
-      // Check if the click is on the actual timeline background, not on any interactive elements
-      const target = e.target as HTMLElement;
-      const isTimelineBackground =
-        target.classList.contains("track-elements-container") ||
-        target.closest("[data-ruler-area]") ||
-        target.classList.contains("timeline-track-background");
-
-      if (!isTimelineBackground) {
-        clearSelectedElements();
-        return;
-      }
-
       // Clear selected elements when clicking empty timeline area
       console.log(JSON.stringify({ clearingSelectedElements: true }));
       clearSelectedElements();
@@ -256,7 +303,6 @@ export function Timeline() {
       clearSelectedElements,
       isSelecting,
       justFinishedSelecting,
-      justFinishedDragging,
     ]
   );
 
@@ -931,7 +977,10 @@ export function Timeline() {
           <div
             className="flex-1 relative overflow-hidden"
             onWheel={handleWheel}
-            onMouseDown={handleSelectionMouseDown}
+            onMouseDown={(e) => {
+              handleTimelineMouseDown(e);
+              handleSelectionMouseDown(e);
+            }}
             onClick={handleTimelineContentClick}
             ref={tracksContainerRef}
           >

apps/web/src/hooks/use-timeline-element-resize.ts

@@ -186,12 +186,6 @@ export function useTimelineElementResize({
   };
 
   const handleResizeEnd = () => {
-    console.log(
-      JSON.stringify({
-        resizeEnd: true,
-        timeStamp: Date.now(),
-      })
-    );
     setResizing(null);
   };
 

apps/web/src/stores/timeline-store.ts

@@ -74,7 +74,6 @@ interface TimelineStore {
     clickOffsetTime: number;
     currentTime: number;
   };
-  justFinishedDragging: boolean;
   setDragState: (dragState: Partial<TimelineStore["dragState"]>) => void;
   startDrag: (
     elementId: string,
@@ -231,8 +230,6 @@ export const useTimelineStore = create<TimelineStore>((set, get) => {
     // Snapping settings defaults
     snappingEnabled: true,
 
-    justFinishedDragging: false,
-
     getSortedTracks: () => {
       const { _tracks } = get();
       const tracksWithMain = ensureMainTrack(_tracks);
@@ -941,12 +938,7 @@ export const useTimelineStore = create<TimelineStore>((set, get) => {
           clickOffsetTime: 0,
           currentTime: 0,
         },
-        justFinishedDragging: true,
       });
-      
-      setTimeout(() => {
-        set({ justFinishedDragging: false });
-      }, 50);
     },
 
     // Persistence methods