bug

jiangping

2023-11-07 64b432916af9c9218ab3f3eca614e26c542142ae

 minipro_standard/uni_modules/uview-ui/components/u-collapse/u-collapse.vue

¶Ô±ÈÐÂÎļþ
@@ -0,0 +1,90 @@
<template>
   <view class="u-collapse">
      <u-line v-if="border"></u-line>
      <slot />
   </view>
</template>

<script>
   import props from './props.js';
   /**
    * collapse æŠ˜å é¢æ¿ 
    * @description é€šè¿‡æŠ˜å é¢æ¿æ”¶çº³å†…容区域
    * @tutorial https://www.uviewui.com/components/collapse.html
    * @property {String | Number | Array}   value      å½“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   æ˜¯å¦æ‰‹é£Žç´æ¨¡å¼ï¼ˆ é»˜è®¤ false ï¼‰
    * @property {Boolean}               border      æ˜¯å¦æ˜¾ç¤ºå¤–边框 ( é»˜è®¤ true ï¼‰
    * @event {Function}   change       å½“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() {
            // é€šè¿‡computed，同时监听accordion和value值的变化
            // å†é€šè¿‡watch去执行init()方法，进行再一次的初始化
            return [this.accordion, this.value]
         }
      },
      watch: {
         // å½“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 => {
                  // åˆ¤æ–­å­ç»„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: {
         // é‡æ–°åˆå§‹åŒ–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 è¢«æ“ä½œçš„面板的实例
          */
         onChange(target) {
            let changeArr = []
            this.children.map((child, index) => {
               // å¦‚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()
                  }
               }
               // æ‹¼æŽ¥change事件中，数组元素的状态
               changeArr.push({
                  // å¦‚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>