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204 lines
5.5 KiB
204 lines
5.5 KiB
<template> |
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<view class="u-collapse-item" :style="[itemStyle]"> |
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<view :hover-stay-time="200" class="u-collapse-head" @tap.stop="headClick" :hover-class="hoverClass" :style="[headStyle]"> |
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<block v-if="!$slots['title-all']"> |
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<view v-if="!$slots['title']" class="u-collapse-title u-line-1" :style="[{ textAlign: align ? align : 'left' }, |
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isShow && activeStyle && !arrow ? activeStyle : '']"> |
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{{ title }} |
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</view> |
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<slot v-else name="title" /> |
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<view class="u-icon-wrap"> |
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<u-icon v-if="arrow" :color="arrowColor" :class="{ 'u-arrow-down-icon-active': isShow }" |
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class="u-arrow-down-icon" name="arrow-down"></u-icon> |
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</view> |
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</block> |
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<slot v-else name="title-all" /> |
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</view> |
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<view class="u-collapse-body" :style="[{ |
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height: isShow ? height + 'px' : '0' |
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}]"> |
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<view class="u-collapse-content" :id="elId" :style="[bodyStyle]"> |
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<slot></slot> |
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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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/** |
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* collapseItem 手风琴Item |
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* @description 通过折叠面板收纳内容区域(搭配u-collapse使用) |
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* @tutorial https://www.uviewui.com/components/collapse.html |
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* @property {String} title 面板标题 |
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* @property {String Number} index 主要用于事件的回调,标识那个Item被点击 |
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* @property {Boolean} disabled 面板是否可以打开或收起(默认false) |
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* @property {Boolean} open 设置某个面板的初始状态是否打开(默认false) |
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* @property {String Number} name 唯一标识符,如不设置,默认用当前collapse-item的索引值 |
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* @property {String} align 标题的对齐方式(默认left) |
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* @property {Object} active-style 不显示箭头时,可以添加当前选择的collapse-item活动样式,对象形式 |
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* @event {Function} change 某个item被打开或者收起时触发 |
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* @example <u-collapse-item :title="item.head" v-for="(item, index) in itemList" :key="index">{{item.body}}</u-collapse-item> |
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*/ |
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export default { |
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name: "u-collapse-item", |
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props: { |
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// 标题 |
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title: { |
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type: String, |
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default: '' |
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}, |
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// 标题的对齐方式 |
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align: { |
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type: String, |
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default: 'left' |
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}, |
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// 是否可以点击收起 |
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disabled: { |
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type: Boolean, |
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default: false |
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}, |
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// collapse显示与否 |
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open: { |
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type: Boolean, |
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default: false |
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}, |
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// 唯一标识符 |
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name: { |
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type: [Number, String], |
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default: '' |
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}, |
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//活动样式 |
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activeStyle: { |
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type: Object, |
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default () { |
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return {} |
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} |
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}, |
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// 标识当前为第几个 |
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index: { |
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type: [String, Number], |
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default: '' |
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} |
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}, |
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data() { |
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return { |
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isShow: false, |
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elId: this.$u.guid(), |
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height: 0, // body内容的高度 |
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headStyle: {}, // 头部样式,对象形式 |
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bodyStyle: {}, // 主体部分样式 |
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itemStyle: {}, // 每个item的整体样式 |
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arrowColor: '', // 箭头的颜色 |
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hoverClass: '', // 头部按下时的效果样式类 |
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arrow: true, // 是否显示右侧箭头 |
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}; |
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}, |
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watch: { |
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open(val) { |
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this.isShow = val; |
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} |
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}, |
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created() { |
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this.parent = false; |
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// 获取u-collapse的信息,放在u-collapse是为了方便,不用每个u-collapse-item写一遍 |
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this.isShow = this.open; |
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}, |
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methods: { |
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// 异步获取内容,或者动态修改了内容时,需要重新初始化 |
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init() { |
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this.parent = this.$u.$parent.call(this, 'u-collapse'); |
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if(this.parent) { |
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this.nameSync = this.name ? this.name : this.parent.childrens.length; |
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this.parent.childrens.push(this); |
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this.headStyle = this.parent.headStyle; |
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this.bodyStyle = this.parent.bodyStyle; |
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this.arrowColor = this.parent.arrowColor; |
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this.hoverClass = this.parent.hoverClass; |
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this.arrow = this.parent.arrow; |
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this.itemStyle = this.parent.itemStyle; |
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} |
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this.$nextTick(() => { |
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this.queryRect(); |
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}); |
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}, |
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// 点击collapsehead头部 |
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headClick() { |
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if (this.disabled) return; |
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if (this.parent && this.parent.accordion == true) { |
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this.parent.childrens.map(val => { |
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// 自身不设置为false,因为后面有this.isShow = !this.isShow;处理了 |
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if (this != val) { |
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val.isShow = false; |
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} |
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}); |
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} |
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this.isShow = !this.isShow; |
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// 触发本组件的事件 |
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this.$emit('change', { |
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index: this.index, |
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show: this.isShow |
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}) |
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// 只有在打开时才发出事件 |
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if (this.isShow) this.parent && this.parent.onChange(); |
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this.$forceUpdate(); |
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}, |
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// 查询内容高度 |
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queryRect() { |
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// $uGetRect为uView自带的节点查询简化方法,详见文档介绍:https://www.uviewui.com/js/getRect.html |
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// 组件内部一般用this.$uGetRect,对外的为this.$u.getRect,二者功能一致,名称不同 |
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this.$uGetRect('#' + this.elId).then(res => { |
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this.height = res.height; |
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}) |
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} |
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}, |
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mounted() { |
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this.init(); |
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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/style.components.scss"; |
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.u-collapse-head { |
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position: relative; |
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@include vue-flex; |
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justify-content: space-between; |
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align-items: center; |
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color: $u-main-color; |
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font-size: 30rpx; |
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line-height: 1; |
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padding: 24rpx 0; |
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text-align: left; |
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} |
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.u-collapse-title { |
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flex: 1; |
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overflow: hidden; |
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} |
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.u-arrow-down-icon { |
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transition: all 0.3s; |
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margin-right: 20rpx; |
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margin-left: 14rpx; |
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} |
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.u-arrow-down-icon-active { |
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transform: rotate(180deg); |
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transform-origin: center center; |
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} |
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.u-collapse-body { |
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overflow: hidden; |
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transition: all 0.3s; |
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} |
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.u-collapse-content { |
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overflow: hidden; |
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font-size: 28rpx; |
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color: $u-tips-color; |
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text-align: left; |
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} |
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</style>
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