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feat(image): add "load" event 图片组件添加 “load” 事件 #8006

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feat(image): add "load" event 图片组件添加 “load” 事件 #8006

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7 changes: 4 additions & 3 deletions components/image/index.en-US.md
View file
Original file line number Diff line number Diff line change
@@ -28,9 +28,10 @@ Previewable image.

### events

| Events Name | Description | Arguments | Version |
| ----------- | -------------------- | ---------------------- | ------- |
| error | Load failed callback | (event: Event) => void | 3.2.0 |
| Events Name | Description | Arguments | Version |
| ----------- | ------------------------ | ---------------------- | ------- |
| error | Load failed callback | (event: Event) => void | 3.2.0 |
| load | Load successful callback | (event: Event) => void | 4.3.0 |

### previewType

1 change: 1 addition & 0 deletions components/image/index.zh-CN.md
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Original file line number Diff line number Diff line change
@@ -32,6 +32,7 @@ coverDark: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*LVQ3R5JjjJEAAA
| 事件名称 | 说明 | 回调参数 | 版本 |
| -------- | ------------ | ---------------------- | ----- |
| error | 加载错误回调 | (event: Event) => void | 3.2.0 |
| load | 加载成功回调 | (event: Event) => void | 4.3.0 |

### previewType

19 changes: 6 additions & 13 deletions components/vc-image/src/Image.tsx
View file
Original file line number Diff line number Diff line change
@@ -50,6 +50,9 @@ export const imageProps = () => ({
onError: {
type: Function as PropType<HTMLImageElement['onerror']>,
},
onLoad: {
type: Function as PropType<HTMLImageElement['onload']>,
},
});
export type ImageProps = Partial<ReturnType<typeof imageProps>>;
export type ImageStatus = 'normal' | 'error' | 'loading';
@@ -69,7 +72,7 @@ const ImageInternal = defineComponent({
name: 'VcImage',
inheritAttrs: false,
props: imageProps(),
emits: ['click', 'error'],
emits: ['click', 'error', 'load'],
setup(props, { attrs, slots, emit }) {
const prefixCls = computed(() => props.prefixCls);
const previewPrefixCls = computed(() => `${prefixCls.value}-preview`);
@@ -118,8 +121,9 @@ const ImageInternal = defineComponent({
} = groupContext;
const currentId = ref(uuid++);
const canPreview = computed(() => props.preview && !isError.value);
const onLoad = () => {
const onLoad = (e: Event) => {
status.value = 'normal';
emit('load', e);
};
const onError = (e: Event) => {
status.value = 'error';
@@ -158,16 +162,6 @@ const ImageInternal = defineComponent({
}
};

const img = ref<HTMLImageElement>(null);
watch(
() => img,
() => {
if (status.value !== 'loading') return;
if (img.value.complete && (img.value.naturalWidth || img.value.naturalHeight)) {
onLoad();
}
},
);
let unRegister = () => {};
onMounted(() => {
watch(
@@ -266,7 +260,6 @@ const ImageInternal = defineComponent({
src: fallback,
}
: { onLoad, onError, src: imgSrc })}
ref={img}
/>

{status.value === 'loading' && (