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3eb8cc0614
补全方法的参数类型、返回值类型与详情说明，规范字段编辑器/字段配置/运行时 API 等文档。 Co-authored-by: Cursor <cursoragent@cursor.com>
18 lines
689 B
Markdown
18 lines
689 B
Markdown
# historyService事件
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## page-change
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- **详情：** 页面切换
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- **事件回调函数：** (undoRedo: [UndoRedo](https://github.com/Tencent/tmagic-editor/blob/239b5d3efeae916a8cf3e3566d88063ecccc0553/packages/editor/src/utils/undo-redo.ts)) => void
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## change
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- **详情：** 历史记录发生变化
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- **事件回调函数：** (state: [StepValue](https://github.com/Tencent/tmagic-editor/blob/239b5d3efeae916a8cf3e3566d88063ecccc0553/packages/editor/src/type.ts#L400-L404) | null) => void
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:::tip
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当游标处于历史栈边界（已经无法继续撤销或重做）时，`UndoRedo.undo()` / `redo()` 返回 `null`，对应 `change` 回调收到的 `state` 为 `null`
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:::
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