wwbsr/wxcomponents/vant/collapse-item/index.vue

<template>
<uni-shadow-root class="vant-collapse-item-index"><view :class="'van-collapse-item custom-class '+(index !== 0 ? 'van-hairline--top' : '')">
  <van-cell :title="title" title-class="title-class" :icon="icon" :value="value" :label="label" :is-link="isLink" :clickable="clickable" :border="border && expanded" :class="utils.bem('collapse-item__title', { disabled, expanded })" right-icon-class="van-cell__right-icon" custom-class="van-cell" hover-class="van-cell--hover" @click="onClick">
    <slot name="title" slot="title"></slot>
    <slot name="icon" slot="icon"></slot>
    <slot name="value"></slot>
    <slot name="right-icon" slot="right-icon"></slot>
  </van-cell>
  <view :class="utils.bem('collapse-item__wrapper')" style="height: 0;" :animation="animation">
    <view class="van-collapse-item__content content-class">
      <slot></slot>
    </view>
  </view>
</view></uni-shadow-root>
</template>
<wxs src="../wxs/utils.wxs" module="utils"></wxs>
<script>
import VanCell from '../cell/index.vue'
global['__wxVueOptions'] = {components:{'van-cell': VanCell}}

global['__wxRoute'] = 'vant/collapse-item/index'
import { VantComponent } from '../common/component';
VantComponent({
  classes: ['title-class', 'content-class'],
  relation: {
    name: 'collapse',
    type: 'ancestor',
    current: 'collapse-item',
  },
  props: {
    name: null,
    title: null,
    value: null,
    icon: String,
    label: String,
    disabled: Boolean,
    clickable: Boolean,
    border: {
      type: Boolean,
      value: true,
    },
    isLink: {
      type: Boolean,
      value: true,
    },
  },
  data: {
    expanded: false,
  },
  created() {
    this.animation = wx.createAnimation({
      duration: 0,
      timingFunction: 'ease-in-out',
    });
  },
  mounted() {
    this.updateExpanded();
    this.inited = true;
  },
  methods: {
    updateExpanded() {
      if (!this.parent) {
        return Promise.resolve();
      }
      const { value, accordion } = this.parent.data;
      const { children = [] } = this.parent;
      const { name } = this.data;
      const index = children.indexOf(this);
      const currentName = name == null ? index : name;
      const expanded = accordion
        ? value === currentName
        : (value || []).some((name) => name === currentName);
      if (expanded !== this.data.expanded) {
        this.updateStyle(expanded);
      }
      this.setData({ index, expanded });
    },
    updateStyle(expanded) {
      const { inited } = this;
      this.getRect('.van-collapse-item__content')
        .then((rect) => rect.height)
        .then((height) => {
          const { animation } = this;
          if (expanded) {
            animation
              .height(height)
              .top(1)
              .step({
                duration: inited ? 300 : 1,
              })
              .height('auto')
              .step();
            this.setData({
              animation: animation.export(),
            });
            return;
          }
          animation.height(height).top(0).step({ duration: 1 }).height(0).step({
            duration: 300,
          });
          this.setData({
            animation: animation.export(),
          });
        });
    },
    onClick() {
      if (this.data.disabled) {
        return;
      }
      const { name, expanded } = this.data;
      const index = this.parent.children.indexOf(this);
      const currentName = name == null ? index : name;
      this.parent.switch(currentName, !expanded);
    },
  },
});
export default global['__wxComponents']['vant/collapse-item/index']
</script>
<style platform="mp-weixin">
@import '../common/index.css';.van-collapse-item__title .van-cell__right-icon{-webkit-transform:rotate(90deg);transform:rotate(90deg);transition:-webkit-transform .3s;transition:transform .3s;transition:transform .3s,-webkit-transform .3s;transition:-webkit-transform var(--collapse-item-transition-duration,.3s);transition:transform var(--collapse-item-transition-duration,.3s);transition:transform var(--collapse-item-transition-duration,.3s),-webkit-transform var(--collapse-item-transition-duration,.3s)}.van-collapse-item__title--expanded .van-cell__right-icon{-webkit-transform:rotate(-90deg);transform:rotate(-90deg)}.van-collapse-item__title--disabled .van-cell,.van-collapse-item__title--disabled .van-cell__right-icon{color:#c8c9cc!important;color:var(--collapse-item-title-disabled-color,#c8c9cc)!important}.van-collapse-item__title--disabled .van-cell--hover{background-color:#fff!important;background-color:var(--white,#fff)!important}.van-collapse-item__wrapper{overflow:hidden}.van-collapse-item__content{padding:15px;padding:var(--collapse-item-content-padding,15px);color:#969799;color:var(--collapse-item-content-text-color,#969799);font-size:13px;font-size:var(--collapse-item-content-font-size,13px);line-height:1.5;line-height:var(--collapse-item-content-line-height,1.5);background-color:#fff;background-color:var(--collapse-item-content-background-color,#fff)}
</style>