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