Method on

packages/editor/src/core/event-bus.ts:59–92

(
    eventName: T,
    handler: EditorEventHandler<T>,
    options?: AddEventListenerOptions & { target?: EventTarget },
  )

  }

  on<T extends EditorEventName>(
    eventName: T,
    handler: EditorEventHandler<T>,
    options?: AddEventListenerOptions & { target?: EventTarget },
  ): EditorEventSubscription {
    const target = options?.target ?? window;
    const prefixedEventName = this.prefixEventName(eventName);
    const abortController = new AbortController();

    const wrappedHandler = (event: Event) => {
      const customEvent = event as CustomEvent<EditorEventMap[T]>;
      const result = handler(customEvent.detail);

      if (result instanceof Promise) {
        result.catch((error) => {
          console.error(
            `Error in async event handler for ${prefixedEventName}:`,
            { event: customEvent.detail, error },
          );
        });
      }
    };

    target.addEventListener(prefixedEventName, wrappedHandler, {
      ...options,
      signal: abortController.signal,
    });

    return {
      unsubscribe: () => {
        abortController.abort();
      },
    };
  }
}

export const editorEventBus = new EditorEventBus();