# 事件监听

## 使用方式

```javascript
import Editor from "@hufe921/canvas-editor"

const instance = new Editor(container, <IElement[]>data, options)
instance.listener.eventName = ()=>{}
```

## rangeStyleChange
功能：选区样式发生改变

用法：
```javascript
instance.listener.rangeStyleChange = (payload: IRangeStyle)=>{}
```

## visiblePageNoListChange
功能：可见页发生改变

用法：
```javascript
instance.listener.visiblePageNoListChange = (payload: number[])=>{}
```

## intersectionPageNoChange
功能：当前页发生改变

用法：
```javascript
instance.listener.intersectionPageNoChange = (payload: number)=>{}
```

## pageSizeChange
功能：当前页数发生改变

用法：
```javascript
instance.listener.pageSizeChange = (payload: number)=>{}
```

## pageScaleChange
功能：当前页面缩放比例发生改变

用法：
```javascript
instance.listener.pageScaleChange = (payload: number)=>{}
```

## contentChange
功能：当前内容发生改变

用法：
```javascript
instance.listener.contentChange = ()=>{}
```

## controlChange
功能：当前光标所在控件发生改变

用法：
```javascript
instance.listener.controlChange = (payload: IControl | null)=>{}
```

## pageModeChange
功能：页面模式发生改变

用法：
```javascript
instance.listener.pageModeChange = (payload: PageMode)=>{}
```

## saved
功能：文档执行保存

用法：
```javascript
instance.listener.saved = (payload: IEditorResult)=>{}
```