weapp_bbs/components/poster/poster.js

Component({
  properties: {
    obj: {
      type: Object,
      value: {}
    },
    barcodeImgUrl: {
      type: String,
      value: 'https://discuz.hoolihome.com/defaults/barcode2.jpg'
    }
  },
  data: {
    dataArr: [],
    logoImgUrl: 'https://static.hoolihome.com/weapp/hoolihome/slogan.png?v=1'
  },
  methods: {
    getElementInfo: function () {
      const query = wx.createSelectorQuery().in(this); //fields
      query.selectAll('.canvas-part').fields({
        dataset: true,
        rect: true,
        id: true,
        size: true,
        computedStyle: ['color', 'backgroundColor', 'fontSize', 'fontWeight', 'borderRadius'],
        context: true,
      }, function (res) {
        let pages = getCurrentPages();
        let curPage = pages[pages.length - 1];
        if (res && curPage && curPage.posterCallack) {
          curPage.posterCallack(res);
        } else {
          curPage.posterCallack(null);
        }
      }).exec()
    },
    photoLoaded: function (e) {
      this.getElementInfo();
    }
  },
  lifetimes: {
    ready: function () {
      // this.getElementInfo();
    }
  }
})