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<template>
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<view class="u-avatar-group">
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<view
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class="u-avatar-group__item"
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v-for="(item, index) in showUrl"
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:key="index"
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:style="{
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marginLeft: index === 0 ? 0 : $u.addUnit(-size * gap)
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}"
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>
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<u-avatar
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:size="size"
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:shape="shape"
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:mode="mode"
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:src="$u.test.object(item) ? keyName && item[keyName] || item.url : item"
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></u-avatar>
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<view
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class="u-avatar-group__item__show-more"
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v-if="showMore && index === showUrl.length - 1 && (urls.length > maxCount || extraValue > 0)"
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@tap="clickHandler"
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>
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<u--text
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color="#ffffff"
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:size="size * 0.4"
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:text="`+${extraValue || urls.length - showUrl.length}`"
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align="center"
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customStyle="justify-content: center"
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></u--text>
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</view>
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</view>
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</view>
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</template>
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<script>
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import props from './props.js';
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/**
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* AvatarGroup 头像组
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* @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。
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* @tutorial https://www.uviewui.com/components/avatar.html
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*
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* @property {Array} urls 头像图片组 (默认 [] )
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* @property {String | Number} maxCount 最多展示的头像数量 ( 默认 5 )
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* @property {String} shape 头像形状( 'circle' (默认) | 'square' )
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* @property {String} mode 图片裁剪模式(默认 'scaleToFill' )
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* @property {Boolean} showMore 超出maxCount时是否显示查看更多的提示 (默认 true )
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* @property {String | Number} size 头像大小 (默认 40 )
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* @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
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* @property {String | Number} gap 头像之间的遮挡比例(0.4代表遮挡40%) (默认 0.5 )
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* @property {String | Number} extraValue 需额外显示的值
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* @event {Function} showMore 头像组更多点击
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* @example <u-avatar-group:urls="urls" size="35" gap="0.4" ></u-avatar-group:urls=>
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*/
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export default {
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name: 'u-avatar-group',
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mixins: [uni.$u.mpMixin, uni.$u.mixin, props],
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data() {
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return {
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}
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},
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computed: {
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showUrl() {
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return this.urls.slice(0, this.maxCount)
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}
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},
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methods: {
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clickHandler() {
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this.$emit('showMore')
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}
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},
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}
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</script>
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<style lang="scss" scoped>
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@import "../../libs/css/components.scss";
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.u-avatar-group {
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@include flex;
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&__item {
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margin-left: -10px;
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position: relative;
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&--no-indent {
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// 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
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margin-left: 0;
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}
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&__show-more {
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position: absolute;
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top: 0;
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bottom: 0;
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left: 0;
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right: 0;
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background-color: rgba(0, 0, 0, 0.3);
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@include flex;
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align-items: center;
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justify-content: center;
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border-radius: 100px;
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}
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}
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}
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</style>
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