1 files changed, 57 insertions, 56 deletions
diff --git a/apps/web/src/stores/timeline-store.ts b/apps/web/src/stores/timeline-store.ts
index c8428355..b7ddb885 100644
--- a/apps/web/src/stores/timeline-store.ts
+++ b/apps/web/src/stores/timeline-store.ts
@@ -1,56 +1,57 @@
-/**
- * UI state for the timeline
- * For core logic, use EditorCore instead.
- */
-
-import { create } from "zustand";
-import { persist } from "zustand/middleware";
-import type { ClipboardItem } from "@/lib/timeline";
-
-interface TimelineStore {
-	snappingEnabled: boolean;
-	toggleSnapping: () => void;
-	rippleEditingEnabled: boolean;
-	toggleRippleEditing: () => void;
-	clipboard: {
-		items: ClipboardItem[];
-	} | null;
-	setClipboard: (
-		clipboard: {
-			items: ClipboardItem[];
-		} | null,
-	) => void;
-}
-
-export const useTimelineStore = create<TimelineStore>()(
-	persist(
-		(set) => ({
-			snappingEnabled: true,
-
-			toggleSnapping: () => {
-				set((state) => ({ snappingEnabled: !state.snappingEnabled }));
-			},
-
-			rippleEditingEnabled: false,
-
-			toggleRippleEditing: () => {
-				set((state) => ({
-					rippleEditingEnabled: !state.rippleEditingEnabled,
-				}));
-			},
-
-			clipboard: null,
-
-			setClipboard: (clipboard) => {
-				set({ clipboard });
-			},
-		}),
-		{
-			name: "timeline-store",
-			partialize: (state) => ({
-				snappingEnabled: state.snappingEnabled,
-				rippleEditingEnabled: state.rippleEditingEnabled,
-			}),
-		},
-	),
-);
+/**
+ * UI state for the timeline
+ * For core logic, use EditorCore instead.
+ */
+
+import { create } from "zustand";
+import { persist } from "zustand/middleware";
+
+interface TimelineStore {
+	snappingEnabled: boolean;
+	toggleSnapping: () => void;
+	rippleEditingEnabled: boolean;
+	toggleRippleEditing: () => void;
+	expandedElementIds: Set<string>;
+	toggleElementExpanded: (elementId: string) => void;
+}
+
+export const useTimelineStore = create<TimelineStore>()(
+	persist(
+		(set) => ({
+			snappingEnabled: true,
+
+			toggleSnapping: () => {
+				set((state) => ({ snappingEnabled: !state.snappingEnabled }));
+			},
+
+			rippleEditingEnabled: false,
+
+			toggleRippleEditing: () => {
+				set((state) => ({
+					rippleEditingEnabled: !state.rippleEditingEnabled,
+				}));
+			},
+
+			expandedElementIds: new Set<string>(),
+
+			toggleElementExpanded: (elementId) => {
+				set((state) => {
+					const next = new Set(state.expandedElementIds);
+					if (next.has(elementId)) {
+						next.delete(elementId);
+					} else {
+						next.add(elementId);
+					}
+					return { expandedElementIds: next };
+				});
+			},
+		}),
+		{
+			name: "timeline-store",
+			partialize: (state) => ({
+				snappingEnabled: state.snappingEnabled,
+				rippleEditingEnabled: state.rippleEditingEnabled,
+			}),
+		},
+	),
+);