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<template>
<view class="u-avatar-group">
<view
class="u-avatar-group__item"
v-for="(item, index) in showUrl"
:key="index"
:style="{
marginLeft: index === 0 ? 0 : $u.addUnit(-size * gap)
}"
>
<u-avatar
:size="size"
:shape="shape"
:mode="mode"
:src="$u.test.object(item) ? keyName && item[keyName] || item.url : item"
></u-avatar>
<view
class="u-avatar-group__item__show-more"
v-if="showMore && index === showUrl.length - 1 && (urls.length > maxCount || extraValue > 0)"
@tap="clickHandler"
>
<u--text
color="#ffffff"
:size="size * 0.4"
:text="`+${extraValue || urls.length - showUrl.length}`"
align="center"
customStyle="justify-content: center"
></u--text>
</view>
</view>
</view>
</template>
<script>
import props from './props.js';
/**
* AvatarGroup 头像组
* @description 本组件一般用于展示头像的地方,如个人中心,或者评论列表页的用户头像展示等场所。
* @tutorial https://www.uviewui.com/components/avatar.html
*
* @property {Array} urls 头像图片组 (默认 [] )
* @property {String | Number} maxCount 最多展示的头像数量 ( 默认 5 )
* @property {String} shape 头像形状( 'circle' (默认) | 'square' )
* @property {String} mode 图片裁剪模式(默认 'scaleToFill' )
* @property {Boolean} showMore 超出maxCount时是否显示查看更多的提示 (默认 true )
* @property {String | Number} size 头像大小 (默认 40 )
* @property {String} keyName 指定从数组的对象元素中读取哪个属性作为图片地址
* @property {String | Number} gap 头像之间的遮挡比例(0.4代表遮挡40%) (默认 0.5 )
* @property {String | Number} extraValue 需额外显示的值
* @event {Function} showMore 头像组更多点击
* @example <u-avatar-group:urls="urls" size="35" gap="0.4" ></u-avatar-group:urls=>
*/
export default {
name: 'u-avatar-group',
mixins: [uni.$u.mpMixin, uni.$u.mixin, props],
data() {
return {
}
},
computed: {
showUrl() {
return this.urls.slice(0, this.maxCount)
}
},
methods: {
clickHandler() {
this.$emit('showMore')
}
},
}
</script>
<style lang="scss" scoped>
@import "../../libs/css/components.scss";
.u-avatar-group {
@include flex;
&__item {
margin-left: -10px;
position: relative;
&--no-indent {
// 如果你想质疑作者不会使用:first-child,说明你太年轻,因为nvue不支持
margin-left: 0;
}
&__show-more {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
background-color: rgba(0, 0, 0, 0.3);
@include flex;
align-items: center;
justify-content: center;
border-radius: 100px;
}
}
}
</style>