refactor(web): centralize multi-select release handling

apps/web/src/hooks/timelineMultiSelect.ts

@@ -65,3 +65,24 @@ export function finalizeMultiSelectDraft<TState extends MultiSelectStateLike>(
     currentY,
   };
 }
+
+export function completeMultiSelectDraft<TState extends MultiSelectStateLike>(
+  state: TState,
+  currentX: number,
+  currentY: number,
+  emptyState: TState,
+  minDistancePx = 5,
+): { nextState: TState; shouldClear: boolean } {
+  const finished = finalizeMultiSelectDraft(state, currentX, currentY, minDistancePx);
+  if (!finished) {
+    return {
+      nextState: emptyState,
+      shouldClear: true,
+    };
+  }
+
+  return {
+    nextState: finished,
+    shouldClear: false,
+  };
+}