微信小程序 自定义弹窗展示图表组件（echarts/AntV-f6）

小程序弹窗展示图表组件，可滑动放大等，弹窗操作不穿透底层

引用组件步骤：步骤

图表组件生成需要画面加载出载体Dom，画面数据加载完毕后再隐藏，根据业务需求弹窗出现，防止穿透底层添加了 定位fixed

<!-- 底层 -->
<view style="top:{{showTree?currentTop+'px':''}}"  class="{{showTree?'noscroll':''}}">
	<label class="message" bindtap="setTreeData" data-treedata="{{item.resourceUrl}}" data-id="{{index}}" >{{item.name}}</label>
</view>
<!-- 弹窗 -->
<view wx:if="{{showTree}}">
   <view class="pop-mask" wx:if="{{showPop}}"></view>
   <view class="pop-back" wx:if="{{showPop}}"></view>
   <button bindtap="dispose" wx:if="{{showPop}}" class="pop-btn">关闭</button>
   <f6-canvas
     width="{{canvasWidth}}"
     height="{{canvasHeight}}"
     pixelRatio="{{pixelRatio}}"
     bind:onInit="handleCanvasInit"
     bind:onTouchEvent="handleTouch"
   />
 </view>

  //数据加载方法
  getData(){
	this.setData({
       showTree:false
     })
  }
  //打开弹窗
  setTreeData(e){
    let id = e.target.dataset.id;
    let that = this;
    /*阻止弹窗操作穿透底层，底层设置fixed ，设置前获取已滚动的高度*/
    wx.createSelectorQuery().select('#item'+id).boundingClientRect(function(rect){
      that.setData({
        currentTop:rect.top
      })
    }).exec()
    let treedata = JSON.parse(e.target.dataset.treedata)
    this.setData({
      showTree:true,
      showPop:true,
    })
    let _this = this
    setTimeout(function(){
      // 注册数据
      _this.graph.data(treedata);
      _this.graph.render();
      _this.graph.fitView();
    },300)
  },
  //关闭
  dispose(){
    this.setData({
      showTree:false,
      showPop:false
    })
    wx.pageScrollTo({ scrollTop: -(this.data.currentTop-50),duration:0})
  },

/*防穿透css*/
.noscroll {
  /* top: 0px;
  left: 0px;
  width: 100%;
  height: 100%; */
  overflow: hidden;
  position: fixed;
  z-index: 0;
  bottom: 0;
}
.pop-btn{
  position: fixed;
  bottom: 107px;
  left: 10px;
  right: 10px;
  z-index: 9999;
  margin: 0 !important;
}
.pop-mask{
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: #00000033;
  z-index: 9999;
}
.pop-back{
  background-color: #fff;
  height: 73vh;
  position: fixed;
  /* top: 80px; */
  bottom: 107px;
  left: 10px;
  right: 10px;
  border-radius: 10px;
  z-index: 9999;
}
f6-canvas{
  height: 66vh;
  position: fixed;
  bottom: 165px;
  left: 10px;
  right: 10px;
  z-index: 999999999;
  overflow: hidden;
}