1 files changed, 25 insertions, 0 deletions
diff --git a/apps/web/src/lib/selection/editor-selection.ts b/apps/web/src/lib/selection/editor-selection.ts
new file mode 100644
index 00000000..e9563b97
--- /dev/null
+++ b/apps/web/src/lib/selection/editor-selection.ts
@@ -0,0 +1,25 @@
+import type { SelectedKeyframeRef } from "@/lib/animation/types";
+import type { ElementRef } from "@/lib/timeline/types";
+
+export interface SelectedMaskPointSelection {
+	trackId: string;
+	elementId: string;
+	maskId: string;
+	pointIds: string[];
+}
+
+export interface EditorSelectionSnapshot {
+	selectedElements: ElementRef[];
+	selectedKeyframes: SelectedKeyframeRef[];
+	keyframeSelectionAnchor: SelectedKeyframeRef | null;
+	selectedMaskPoints: SelectedMaskPointSelection | null;
+}
+
+export interface EditorSelectionPatch {
+	selectedElements?: ElementRef[];
+	selectedKeyframes?: SelectedKeyframeRef[];
+	keyframeSelectionAnchor?: SelectedKeyframeRef | null;
+	selectedMaskPoints?: SelectedMaskPointSelection | null;
+}
+
+export type EditorSelectionKind = "mask-points" | "keyframes" | "elements";