1 files changed, 42 insertions, 0 deletions
diff --git a/apps/web/src/lib/timeline/drag.ts b/apps/web/src/lib/timeline/drag.ts
new file mode 100644
index 00000000..89b1593f
--- /dev/null
+++ b/apps/web/src/lib/timeline/drag.ts
@@ -0,0 +1,42 @@
+import type { MaskableElement, VisualElement } from "./types";
+import type { ParamValues } from "@/lib/params";
+
+interface BaseDragData {
+	id: string;
+	name: string;
+}
+
+export interface MediaDragData extends BaseDragData {
+	type: "media";
+	mediaType: "image" | "video" | "audio";
+	targetElementTypes?: MaskableElement["type"][];
+}
+
+export interface TextDragData extends BaseDragData {
+	type: "text";
+	content: string;
+}
+
+export interface StickerDragData extends BaseDragData {
+	type: "sticker";
+	stickerId: string;
+}
+
+export interface GraphicDragData extends BaseDragData {
+	type: "graphic";
+	definitionId: string;
+	params: Partial<ParamValues>;
+}
+
+export interface EffectDragData extends BaseDragData {
+	type: "effect";
+	effectType: string;
+	targetElementTypes: VisualElement["type"][];
+}
+
+export type TimelineDragData =
+	| MediaDragData
+	| TextDragData
+	| StickerDragData
+	| GraphicDragData
+	| EffectDragData;