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Co-authored-by: Cursor <cursoragent@cursor.com>
32 lines
816 B
Markdown
32 lines
816 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) => void`
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::: details 查看 UndoRedo 类定义
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<<< @/../packages/editor/src/utils/undo-redo.ts#UndoRedo{ts}
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:::
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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 | null) => void`
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::: details 查看 StepValue 及关联类型定义
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<<< @/../packages/editor/src/type.ts#StepValue{ts}
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<<< @/../packages/editor/src/type.ts#HistoryOpType{ts}
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<<< @/../packages/schema/src/index.ts#Id{ts}
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<<< @/../packages/schema/src/index.ts#MNode{ts}
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:::
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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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