# historyService事件 ## page-change - **详情:** 页面切换 - **回调函数:** (undoRedo: [undoRedo](https://github.com/Tencent/tmagic-editor/blob/239b5d3efeae916a8cf3e3566d88063ecccc0553/packages/editor/src/utils/undo-redo.ts)) => void ## change - **详情:** 历史记录发生变化 - **回调函数:** (state: [StepValue](https://github.com/Tencent/tmagic-editor/blob/239b5d3efeae916a8cf3e3566d88063ecccc0553/packages/editor/src/type.ts#L400-L404)) => void