104 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			Vue
		
	
	
	
	
	
			
		
		
	
	
			104 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			Vue
		
	
	
	
	
	
<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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