You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
90 lines
2.7 KiB
90 lines
2.7 KiB
<template>
|
|
<view class="u-collapse">
|
|
<u-line v-if="border"></u-line>
|
|
<slot />
|
|
</view>
|
|
</template>
|
|
|
|
<script>
|
|
import props from './props.js';
|
|
/**
|
|
* collapse 折叠面板
|
|
* @description 通过折叠面板收纳内容区域
|
|
* @tutorial https://www.uviewui.com/components/collapse.html
|
|
* @property {String | Number | Array} value 当前展开面板的name，非手风琴模式：[<string | number>]，手风琴模式：string | number
|
|
* @property {Boolean} accordion 是否手风琴模式（ 默认 false ）
|
|
* @property {Boolean} border 是否显示外边框 ( 默认 true ）
|
|
* @event {Function} change 当前激活面板展开时触发(如果是手风琴模式，参数activeNames类型为String，否则为Array)
|
|
* @example <u-collapse></u-collapse>
|
|
*/
|
|
export default {
|
|
name: "u-collapse",
|
|
mixins: [uni.$u.mpMixin, uni.$u.mixin,props],
|
|
watch: {
|
|
needInit() {
|
|
this.init()
|
|
}
|
|
},
|
|
created() {
|
|
this.children = []
|
|
},
|
|
computed: {
|
|
needInit() {
|
|
// 通过computed，同时监听accordion和value值的变化
|
|
// 再通过watch去执行init()方法，进行再一次的初始化
|
|
return [this.accordion, this.value]
|
|
}
|
|
},
|
|
watch: {
|
|
// 当父组件需要子组件需要共享的参数发生了变化，手动通知子组件
|
|
parentData() {
|
|
if (this.children.length) {
|
|
this.children.map(child => {
|
|
// 判断子组件(u-checkbox)如果有updateParentData方法的话，就就执行(执行的结果是子组件重新从父组件拉取了最新的值)
|
|
typeof(child.updateParentData) === 'function' && child.updateParentData()
|
|
})
|
|
}
|
|
},
|
|
},
|
|
methods: {
|
|
// 重新初始化一次内部的所有子元素
|
|
init() {
|
|
this.children.map(child => {
|
|
child.init()
|
|
})
|
|
},
|
|
/**
|
|
* collapse-item被点击时触发，由collapse统一处理各子组件的状态
|
|
* @param {Object} target 被操作的面板的实例
|
|
*/
|
|
onChange(target) {
|
|
let changeArr = []
|
|
this.children.map((child, index) => {
|
|
// 如果是手风琴模式，将其他的折叠面板收起来
|
|
if (this.accordion) {
|
|
child.expanded = child === target ? !target.expanded : false
|
|
child.setContentAnimate()
|
|
} else {
|
|
if(child === target) {
|
|
child.expanded = !child.expanded
|
|
child.setContentAnimate()
|
|
}
|
|
}
|
|
// 拼接change事件中，数组元素的状态
|
|
changeArr.push({
|
|
// 如果没有定义name属性，则默认返回组件的index索引
|
|
name: child.name || index,
|
|
status: child.expanded ? 'open' : 'close'
|
|
})
|
|
})
|
|
|
|
this.$emit('change', changeArr)
|
|
this.$emit(target.expanded ? 'open' : 'close', target.name)
|
|
}
|
|
}
|
|
}
|
|
</script>
|
|
|
|
<style lang="scss" scoped>
|
|
@import "../../libs/css/components.scss";
|
|
</style>
|
|
|