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feat(image-preview): export onLoad and style for image slot (#12740)

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chouchouji 2024-03-31 16:06:43 +08:00 committed by GitHub
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commit 3329c3b505
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4 changed files with 28 additions and 7 deletions
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6
packages/vant/src/image-preview/ImagePreviewItem.tsx
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@ -407,7 +407,11 @@ export default defineComponent({
> >
{slots.image ? ( {slots.image ? (
<div class={bem('image-wrap')}> <div class={bem('image-wrap')}>
{slots.image({ src: props.src })} {slots.image({
src: props.src,
onLoad,
style: imageStyle.value,
})}
</div> </div>
) : ( ) : (
<Image <Image

2
packages/vant/src/image-preview/README.md
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@ -302,7 +302,7 @@ imagePreviewRef.value?.swipeTo(1);
| --- | --- | --- | | --- | --- | --- |
| index | Custom index | _{ index: index of current image }_ | | index | Custom index | _{ index: index of current image }_ |
| cover | Custom content that covers the image preview | - | | cover | Custom content that covers the image preview | - |
| image | Custom image content | _{ src: current image src }_ | | image | Custom image content | _{ src: current image src, onLoad: load image, style: current image style }_ |
### onClose Parameters ### onClose Parameters

10
packages/vant/src/image-preview/README.zh-CN.md
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@ -307,11 +307,11 @@ imagePreviewRef.value?.swipeTo(1);
通过组件调用 `ImagePreview` 时，支持以下插槽： 通过组件调用 `ImagePreview` 时，支持以下插槽：
| 名称 | 说明 | 参数 | | 名称 | 说明 | 参数 |
| ----- | ------------------------------ | --------------------------- | | --- | --- | --- |
| index | 自定义页码内容 | _{ index: 当前图片的索引 }_ | | index | 自定义页码内容 | _{ index: 当前图片的索引 }_ |
| cover | 自定义覆盖在图片预览上方的内容 | - | | cover | 自定义覆盖在图片预览上方的内容 | - |
| image | 自定义图片内容 | _{ src: 当前资源地址 }_ | | image | 自定义图片内容 | _{ src: 当前资源地址, onLoad: 加载图片函数, style: 当前图片样式 }_ |
### onClose 回调参数 ### onClose 回调参数

17
packages/vant/src/image-preview/test/index.spec.ts
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@ -403,6 +403,23 @@ test('should render image slot correctly 2', async () => {
expect(wrapper.html().includes('video')).toBeTruthy(); expect(wrapper.html().includes('video')).toBeTruthy();
}); });
test('should render image slot correctly 3', async () => {
const wrapper = mount(ImagePreview, {
props: {
show: true,
images,
},
slots: {
image: ({ src, style }) =>
`<img class="test-img" src="${src}" style="${Object.assign({ width: '100px' }, style)}" />`,
},
});
await later();
expect(wrapper.html().includes('width: 100px')).toBeTruthy();
});
test('should emit long-press event after long press', async () => { test('should emit long-press event after long press', async () => {
const onLongPress = vi.fn(); const onLongPress = vi.fn();
const wrapper = mount(ImagePreview, { const wrapper = mount(ImagePreview, {