feat: Test case movement (#290)

frontend/utils/testCaseMoveEvent.ts

@@ -0,0 +1,19 @@
+const eventBus = new EventTarget();
+const TEST_CASE_MOVE = 'testCasesMove';
+
+type MoveEventDetail = {
+  testCaseIds: number[];
+  targetFolderId: number;
+};
+
+export const emitMoveEvent = (ids: number[], targetFolderId: number) => {
+  eventBus.dispatchEvent(
+    new CustomEvent(TEST_CASE_MOVE, { detail: { testCaseIds: ids, targetFolderId: targetFolderId } })
+  );
+};
+
+export const onMoveEvent = (listener: (event: CustomEvent<MoveEventDetail>) => void) => {
+  const handler = (e: Event) => listener(e as CustomEvent);
+  eventBus.addEventListener(TEST_CASE_MOVE, handler);
+  return () => eventBus.removeEventListener(TEST_CASE_MOVE, handler);
+};