ant-design-vue/components/avatar/Avatar.vue

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<template>
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<span :class="classes">
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<img v-if="src" :src="src"/>
<icon v-else-if="icon" :type="icon" />
<span
v-else
ref="avatorChildren"
:class="[prefixCls+'-string']"
:style="childrenStyle">
<slot></slot>
</span>
</span>
</template>
<script>
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import Icon from '../icon'
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export default {
name: 'Avatar',
props: {
prefixCls: {
type: String,
default: 'ant-avatar',
},
shape: {
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validator: (val) => (['circle', 'square'].includes(val)),
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default: 'circle',
},
size: {
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validator: (val) => (['small', 'large', 'default'].includes(val)),
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default: 'default',
},
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src: String,
icon: String,
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},
data () {
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this.isExistSlot = false
this.childrenWidth = 0
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return {
scale: 1,
}
},
computed: {
classes () {
const { prefixCls, shape, size, src, icon } = this
return {
[`${prefixCls}`]: true,
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[`${prefixCls}-image`]: !!src && this.state.isImgExist,
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[`${prefixCls}-icon`]: !!icon,
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[`${prefixCls}-${shape}`]: true,
[`${prefixCls}-lg`]: size === 'large',
[`${prefixCls}-sm`]: size === 'small',
}
},
childrenStyle () {
let style = {}
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const { scale, isExistSlot, childrenWidth } = this
if (isExistSlot) {
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style = {
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msTransform: `scale(${scale})`,
WebkitTransform: `scale(${scale})`,
transform: `scale(${scale})`,
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position: 'absolute',
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display: 'inline-block',
left: `calc(50% - ${Math.round(childrenWidth / 2)}px)`,
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}
}
return style
},
},
methods: {
setScale () {
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const { src, icon, $refs, $el } = this
const children = $refs.avatorChildren
this.isExistSlot = !src && !icon
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if (children) {
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this.childrenWidth = children.offsetWidth
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const avatarWidth = $el.getBoundingClientRect().width
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if (avatarWidth - 8 < this.childrenWidth) {
this.scale = (avatarWidth - 8) / this.childrenWidth
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} else {
this.scale = 1
}
}
},
},
mounted () {
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this.$nextTick(() => {
this.setScale()
})
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},
updated () {
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this.$nextTick(() => {
this.setScale()
})
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},
components: {
Icon,
},
}
</script>