148 lines
4.2 KiB
Markdown
148 lines
4.2 KiB
Markdown
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## Avatar 头像
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用图标、图片或者字符的形式展示用户或事物信息。
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### 基本用法
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通过 `shape` 和 `size` 设置头像的形状和大小。
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:::demo
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```html
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<template>
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<el-row class="demo-avatar demo-basic">
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<el-col :span="12">
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<div class="sub-title">circle</div>
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<div class="demo-basic--circle">
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<div class="block"><el-avatar :size="50" :src="circleUrl"></el-avatar></div>
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<div class="block" v-for="size in sizeList" :key="size">
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<el-avatar :size="size" :src="circleUrl"></el-avatar>
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</div>
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</div>
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</el-col>
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<el-col :span="12">
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<div class="sub-title">square</div>
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<div class="demo-basic--circle">
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<div class="block"><el-avatar shape="square" :size="50" :src="squareUrl"></el-avatar></div>
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<div class="block" v-for="size in sizeList" :key="size">
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<el-avatar shape="square" :size="size" :src="squareUrl"></el-avatar>
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</div>
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</div>
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</el-col>
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</el-row>
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</template>
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<script>
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export default {
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data () {
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return {
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circleUrl: "https://cube.elemecdn.com/3/7c/3ea6beec64369c2642b92c6726f1epng.png",
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squareUrl: "https://cube.elemecdn.com/9/c2/f0ee8a3c7c9638a54940382568c9dpng.png",
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sizeList: ["large", "medium", "small"]
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}
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}
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}
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</script>
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```
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:::
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### 展示类型
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支持三种类型:图标、图片和字符
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:::demo
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```html
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<template>
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<div class="demo-type">
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<div>
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<el-avatar icon="el-icon-user-solid"></el-avatar>
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</div>
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<div>
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<el-avatar src="https://cube.elemecdn.com/0/88/03b0d39583f48206768a7534e55bcpng.png"></el-avatar>
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</div>
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<div>
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<el-avatar> user </el-avatar>
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</div>
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</div>
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</template>
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```
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:::
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### 图片加载失败的 fallback 行为
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当展示类型为图片的时候,图片加载失败的 fallback 行为
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:::demo
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```html
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<template>
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<div class="demo-type">
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<el-avatar :size="60" src="https://empty" @error="errorHandler">
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<img src="https://cube.elemecdn.com/e/fd/0fc7d20532fdaf769a25683617711png.png"/>
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</el-avatar>
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</div>
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</template>
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<script>
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export default {
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methods: {
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errorHandler() {
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return true
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}
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}
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}
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</script>
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```
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:::
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### 图片如何适应容器框
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当展示类型为图片的时候,使用 `fit` 属性定义图片如何适应容器框,同原生 [object-fit](https://developer.mozilla.org/en-US/docs/Web/CSS/object-fit)。
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:::demo
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```html
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<template>
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<div class="demo-fit">
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<div class="block" v-for="fit in fits" :key="fit">
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<span class="title">{{ fit }}</span>
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<el-avatar shape="square" :size="100" :fit="fit" :src="url"></el-avatar>
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</div>
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</div>
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</template>
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<script>
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export default {
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data() {
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return {
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fits: ['fill', 'contain', 'cover', 'none', 'scale-down'],
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url: 'https://fuss10.elemecdn.com/e/5d/4a731a90594a4af544c0c25941171jpeg.jpeg'
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}
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}
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}
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</script>
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```
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:::
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### Attributes
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| 参数 | 说明 | 类型 | 可选值 | 默认值 |
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| ----------------- | -------------------------------- | --------------- | ------ | ------ |
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| icon | 设置头像的图标类型,参考 Icon 组件 | string | | |
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| size | 设置头像的大小 | number/string | number / large / medium / small | large |
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| shape | 设置头像的形状 | string | circle / square | circle |
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| src | 图片头像的资源地址 | string | | |
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| srcSet | 以逗号分隔的一个或多个字符串列表表明一系列用户代理使用的可能的图像 | string | | |
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| alt | 描述图像的替换文本 | string | | |
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| fit | 当展示类型为图片的时候,设置图片如何适应容器框 | string | fill / contain / cover / none / scale-down | cover |
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### Events
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| 事件名 | 说明 | 回调参数 |
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| ------ | ------------------ | -------- |
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| error | 图片类头像加载失败的回调, 返回 false 会关闭组件默认的 fallback 行为 |(e: Event) |
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### Slot
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| 名称 | 说明 |
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| ------ | ------------------ |
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| default | 自定义头像展示内容 |
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