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81 lines
2.0 KiB
81 lines
2.0 KiB
const math = require('../../utils/math') //导入模块
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Component({
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options: {
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addGlobalClass: true,
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multipleSlots: true
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},
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properties: {
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imageList: {
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type: Array,
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value: []
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},
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clickable: {
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type: Boolean,
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value: false
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},
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column: {
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type: Number,
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value: 5
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}
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},
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data: {
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width: '138rpx',
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heightList: []
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},
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observers: {
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'column': function () {
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var square = math.minus(math.divide(750, this.data.column), 12) + 'rpx'
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this.setData({ width: square })
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}
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},
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methods: {
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viewImage: function (e) {
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if (!this.data.clickable) {
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return
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}
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var index = e.currentTarget.dataset.index
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var url = this.data.imageList[index]
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if (this.isPdfUrl(url)) {
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var filepath = wx.env.USER_DATA_PATH + url.substring(url.lastIndexOf('/'))
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// 1: 获取本地是否有文件，
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wx.getFileInfo({
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filePath: filepath,
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success (res) {
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// 2: 如果有变打开
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wx.openDocument({ filePath: filepath })
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},
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fail: function (error) {
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// 2: 没有就开始下载
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wx.showLoading({ title: '加载中', mask: true })
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wx.downloadFile({
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url: url,
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filePath: filepath,
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// 3: 下载之后便打开
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success: function (res) {
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wx.openDocument({filePath: res.filePath})
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},
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complete: function (res) {
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wx.hideLoading()
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}
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})
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}
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})
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return
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}
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var imgList = []
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for (let index = 0; index < this.data.imageList.length; index++) {
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if(!this.isPdfUrl(this.data.imageList[index])){
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imgList.push(this.data.imageList[index])
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}
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}
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wx.previewImage({ urls: imgList, current: url })
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},
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isPdfUrl: function (url) {
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if (url && (url.indexOf('.pdf') >= 0 || url.indexOf('.PDF') >= 0)) {
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return true
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}
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return false
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}
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}
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})
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