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* feat: support reset action in toolbarRender * feat: support reset action in toolbarRender * Update components/image/index.zh-CN.md Co-authored-by: afc163 <afc163@gmail.com> Signed-off-by: kiner-tang <1127031143@qq.com> * Update components/image/index.en-US.md Signed-off-by: kiner-tang <1127031143@qq.com> --------- Signed-off-by: kiner-tang <1127031143@qq.com> Co-authored-by: afc163 <afc163@gmail.com>
185 lines
7.2 KiB
Markdown
185 lines
7.2 KiB
Markdown
---
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category: Components
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group: 数据展示
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title: Image
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subtitle: 图片
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description: 可预览的图片。
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cols: 2
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cover: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*FbOCS6aFMeUAAAAAAAAAAAAADrJ8AQ/original
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coverDark: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*LVQ3R5JjjJEAAAAAAAAAAAAADrJ8AQ/original
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---
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## 何时使用
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- 需要展示图片时使用。
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- 加载显示大图或加载失败时容错处理。
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## 代码演示
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<!-- prettier-ignore -->
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<code src="./demo/basic.tsx">基本用法</code>
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<code src="./demo/fallback.tsx">容错处理</code>
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<code src="./demo/placeholder.tsx">渐进加载</code>
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<code src="./demo/preview-group.tsx">多张图片预览</code>
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<code src="./demo/preview-group-visible.tsx">相册模式</code>
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<code src="./demo/previewSrc.tsx">自定义预览图片</code>
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<code src="./demo/controlled-preview.tsx">受控的预览</code>
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<code src="./demo/toolbarRender.tsx">自定义工具栏</code>
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<code src="./demo/imageRender.tsx">自定义预览内容</code>
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<code src="./demo/preview-mask.tsx" debug>自定义预览文本</code>
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<code src="./demo/nested.tsx">嵌套</code>
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<code src="./demo/preview-group-top-progress.tsx" debug>多图预览时顶部进度自定义</code>
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<code src="./demo/component-token.tsx" debug>自定义组件 Token</code>
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<code src="./demo/preview-imgInfo.tsx" debug>在渲染函数中获取图片信息</code>
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## API
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通用属性参考：[通用属性](/docs/react/common-props)
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### Image
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| 参数 | 说明 | 类型 | 默认值 | 版本 |
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| --- | --- | --- | --- | --- |
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| alt | 图像描述 | string | - | 4.6.0 |
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| fallback | 加载失败容错地址 | string | - | 4.6.0 |
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| height | 图像高度 | string \| number | - | 4.6.0 |
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| placeholder | 加载占位，为 `true` 时使用默认占位 | ReactNode | - | 4.6.0 |
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| preview | 预览参数，为 `false` 时禁用 | boolean \| [PreviewType](#previewtype) | true | 4.6.0 [PreviewType](#previewyype):4.7.0 |
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| src | 图片地址 | string | - | 4.6.0 |
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| width | 图像宽度 | string \| number | - | 4.6.0 |
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| onError | 加载错误回调 | (event: Event) => void | - | 4.12.0 |
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其他属性见 [<img>](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/img#Attributes)
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### PreviewType
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| 参数 | 说明 | 类型 | 默认值 | 版本 |
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| --- | --- | --- | --- | --- |
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| visible | 是否显示 | boolean | - | - |
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| src | 自定义预览 src | string | - | 4.10.0 |
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| getContainer | 指定预览挂载的节点，但依旧为全屏展示，false 为挂载在当前位置 | string \| HTMLElement \| (() => HTMLElement) \| false | - | 4.8.0 |
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| movable | 是否可移动 | boolean | true | 5.8.0 |
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| mask | 缩略图遮罩 | ReactNode | - | 4.9.0 |
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| maskClassName | 缩略图遮罩类名 | string | - | 4.11.0 |
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| rootClassName | 预览图的根 DOM 类名 | string | - | 5.4.0 |
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| scaleStep | `1 + scaleStep` 为缩放放大的每步倍数 | number | 0.5 | - |
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| minScale | 最小缩放倍数 | number | 1 | 5.7.0 |
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| maxScale | 最大放大倍数 | number | 50 | 5.7.0 |
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| closeIcon | 自定义关闭 Icon | React.ReactNode | - | 5.7.0 |
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| forceRender | 强制渲染预览图 | boolean | - | - |
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| toolbarRender | 自定义工具栏 | (originalNode: React.ReactElement, info: Omit<[ToolbarRenderInfoType](#toolbarrenderinfotype), 'current' \| 'total'>) => React.ReactNode | - | 5.7.0 |
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| imageRender | 自定义预览内容 | (originalNode: React.ReactElement, info: { transform: [TransformType](#transformtype) }) => React.ReactNode | - | 5.7.0 |
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| destroyOnClose | 关闭预览时销毁子元素 | boolean | false | |
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| onTransform | 预览图 transform 变化的回调 | { transform: [TransformType](#transformtype), action: [TransformAction](#transformaction) } | - | 5.7.0 |
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| onVisibleChange | 当 `visible` 发生改变时的回调 | (visible: boolean, prevVisible: boolean) => void | - | - |
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## PreviewGroup
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| 参数 | 说明 | 类型 | 默认值 | 版本 |
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| --- | --- | --- | --- | --- |
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| preview | 预览参数，为 `false` 时禁用 | boolean \| [PreviewGroupType](#previewgrouptype) | true | 4.6.0 [PreviewGroupType](#previewgrouptype):4.7.0 |
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| items | 预览数组 | string[] \| { src: string, crossOrigin: string, ... }[] | - | 5.7.0 |
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| fallback | 加载失败容错地址 | string | - | 5.7.0 |
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### PreviewGroupType
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| 参数 | 说明 | 类型 | 默认值 | 版本 |
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| --- | --- | --- | --- | --- |
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| visible | 是否显示 | boolean | - | - |
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| getContainer | 指定预览挂载的节点，但依旧为全屏展示，false 为挂载在当前位置 | string \| HTMLElement \| (() => HTMLElement) \| false | - | 4.8.0 |
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| movable | 是否可移动 | boolean | true | 5.8.0 |
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| current | 当前预览图的 index | number | - | 4.12.0 |
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| mask | 缩略图遮罩 | ReactNode | - | 4.9.0 |
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| maskClassName | 缩略图遮罩类名 | string | - | 4.11.0 |
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| rootClassName | 预览图的根 DOM 类名 | string | - | 5.4.0 |
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| scaleStep | `1 + scaleStep` 为缩放放大的每步倍数 | number | 0.5 | - |
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| minScale | 最小缩放倍数 | number | 1 | 5.7.0 |
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| maxScale | 最大放大倍数 | number | 50 | 5.7.0 |
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| closeIcon | 自定义关闭 Icon | React.ReactNode | - | 5.7.0 |
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| forceRender | 强制渲染预览图 | boolean | - | - |
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| countRender | 自定义预览计数内容 | (current: number, total: number) => React.ReactNode | - | 4.20.0 |
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| toolbarRender | 自定义工具栏 | (originalNode: React.ReactElement, info: [ToolbarRenderInfoType](#toolbarrenderinfotype)) => React.ReactNode | - | 5.7.0, `info.image`: 5.18.0 |
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| imageRender | 自定义预览内容 | (originalNode: React.ReactElement, info: { transform: [TransformType](#transformtype), image: [ImgInfo](#imginfo), current: number }) => React.ReactNode | - | 5.7.0, image: 5.18.0 |
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| onTransform | 预览图 transform 变化的回调 | { transform: [TransformType](#transformtype), action: [TransformAction](#transformaction) } | - | 5.7.0 |
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| onChange | 切换预览图的回调 | (current: number, prevCurrent: number) => void | - | 5.3.0 |
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| onVisibleChange | 当 `visible` 发生改变时的回调 | (visible: boolean, prevVisible: boolean, current: number) => void | - | current 参数 5.3.0 |
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## Interface
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### TransformType
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```typescript
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{
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x: number;
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y: number;
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rotate: number;
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scale: number;
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flipX: boolean;
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flipY: boolean;
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}
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```
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### TransformAction
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```typescript
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type TransformAction =
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| 'flipY'
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| 'flipX'
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| 'rotateLeft'
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| 'rotateRight'
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| 'zoomIn'
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| 'zoomOut'
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| 'close'
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| 'prev'
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| 'next'
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| 'wheel'
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| 'doubleClick'
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| 'move'
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| 'dragRebound'
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| 'reset';
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```
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### ToolbarRenderInfoType
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```typescript
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{
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icons: {
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flipYIcon: React.ReactNode;
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flipXIcon: React.ReactNode;
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rotateLeftIcon: React.ReactNode;
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rotateRightIcon: React.ReactNode;
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zoomOutIcon: React.ReactNode;
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zoomInIcon: React.ReactNode;
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};
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actions: {
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onFlipY: () => void;
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onFlipX: () => void;
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onRotateLeft: () => void;
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onRotateRight: () => void;
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onZoomOut: () => void;
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onZoomIn: () => void;
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onReset: () => void; // 5.17.3 之后支持
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onClose: () => void;
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};
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transform: TransformType,
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current: number;
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total: number;
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image: ImgInfo
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}
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```
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### ImgInfo
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```typescript
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{
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url: string;
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alt: string;
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width: string | number;
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height: string | number;
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}
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```
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## 主题变量（Design Token）
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<ComponentTokenTable component="Image"></ComponentTokenTable>
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