const util = require('../../utils/util') //导入模块

Component({
  options: {
    addGlobalClass: true,
    multipleSlots: true
  },
  properties: {
    src: {
      type: String,
      value: ''
    },
    width: {
      type: Number,
      value: 80
    },
    height: {
      type: Number,
      value: 80
    },
    imageList: {
      type: Array,
      value: []
    }
  },
  observers: {
    'imageList': function () {
      for (let index = 0; index < this.data.imageList.length; index++) {
        if(!this.isPdfUrl(this.data.imageList[index])){
          this.setData({ src: this.data.imageList[index] })
          break
        }
      }
      if(util.isEmpty(this.data.src)){
        this.setData({ src: this.data.imageList[0] })
      }
    }
  },
  methods: {
    isPdfUrl: function (url) {
      if (url && (url.indexOf('.pdf') >= 0 || url.indexOf('.PDF') >= 0)) {
        return true
      }
      return false
    }
  }
})