(精华)2020年7月30日 微信小程序 富文本编辑器的使用

<view class="container" style="height:{{editorHeight}}px;">
  <editor id="editor" class="ql-container" placeholder="{{placeholder}}" bindstatuschange="onStatusChange" bindready="onEditorReady">
  </editor>
</view>

<scroll-view scroll-x ="{{true}}">
  <view class="toolbar" catchtouchend="format" hidden="{{keyboardHeight > 0 ? false : true}}" style="bottom: {{isIOS ? keyboardHeight : 0}}px">
    <i class="iconfont icon-charutupian" catchtouchend="insertImage"></i>
    <i class="iconfont icon-format-header-1 {{formats.header === 1 ? 'ql-active' : ''}}" data-name="header" data-value="{{1}}"></i>
    <i class="iconfont icon-format-header-2 {{formats.header === 2 ? 'ql-active' : ''}}" data-name="header" data-value="{{2}}"></i>
    <i class="iconfont icon-format-header-3 {{formats.header === 3 ? 'ql-active' : ''}}" data-name="header" data-value="{{3}}"></i>
    <i class="iconfont icon-zitijiacu {{formats.bold ? 'ql-active' : ''}}" data-name="bold"></i>
    <i class="iconfont icon-zitixieti {{formats.italic ? 'ql-active' : ''}}" data-name="italic"></i>
    <i class="iconfont icon-zitixiahuaxian {{formats.underline ? 'ql-active' : ''}}" data-name="underline"></i>
    <i class="iconfont icon--checklist" data-name="list" data-value="check"></i>
    <i class="iconfont icon-youxupailie {{formats.list === 'ordered' ? 'ql-active' : ''}}" data-name="list" data-value="ordered"></i>
    <i class="iconfont icon-wuxupailie {{formats.list === 'bullet' ? 'ql-active' : ''}}" data-name="list" data-value="bullet"></i>

    <i class="iconfont icon-clearedformat" bindtap="removeFormat"></i>
    <i class="iconfont icon-shanchu" bindtap="clear"></i>
    <i class="iconfont icon-undo" bindtap="undo"></i>
    <i class="iconfont icon-redo" bindtap="redo"></i>
    <i class="iconfont icon-date" bindtap="redo"></i>
  </view>
</scroll-view>

Page({
  data: {
    formats: {},
    readOnly: false,
    placeholder: '在这里尽情创作吧！',
    editorHeight: 300,
    keyboardHeight: 0,
    isIOS: false
  },
  readOnlyChange() {
    this.setData({
      readOnly: !this.data.readOnly
    })
  },
  onLoad() {
    const platform = wx.getSystemInfoSync().platform
    const isIOS = platform === 'ios'
    this.setData({ isIOS})
    const that = this
    this.updatePosition(0)
    let keyboardHeight = 0
    wx.onKeyboardHeightChange(res => {
      if (res.height === keyboardHeight) return
      const duration = res.height > 0 ? res.duration * 1000 : 0
      keyboardHeight = res.height
      setTimeout(() => {
        wx.pageScrollTo({
          scrollTop: 0,
          success() {
            that.updatePosition(keyboardHeight)
            that.editorCtx.scrollIntoView()
          }
        })
      }, duration)

    })
  },
  updatePosition(keyboardHeight) {
    const toolbarHeight = 50
    const { windowHeight, platform } = wx.getSystemInfoSync()
    let editorHeight = keyboardHeight > 0 ? (windowHeight - keyboardHeight - toolbarHeight) : windowHeight
    this.setData({ editorHeight, keyboardHeight })
  },
  calNavigationBarAndStatusBar() {
    const systemInfo = wx.getSystemInfoSync()
    const { statusBarHeight, platform } = systemInfo
    const isIOS = platform === 'ios'
    const navigationBarHeight = isIOS ? 44 : 48
    return statusBarHeight + navigationBarHeight
  },
  onEditorReady() {
    const that = this
    wx.createSelectorQuery().select('#editor').context(function (res) {
      that.editorCtx = res.context
    }).exec()
  },
  blur() {
    this.editorCtx.blur()
  },
  format(e) {
    let { name, value } = e.target.dataset
    if (!name) return
    // console.log('format', name, value)
    this.editorCtx.format(name, value)

  },
  onStatusChange(e) {
    const formats = e.detail
    this.setData({ formats })
  },
  insertDivider() {
    this.editorCtx.insertDivider({
      success: function () {
        console.log('insert divider success')
      }
    })
  },
  clickLogText(e) {
    that.editorCtx.getContents({
      success: function (res) {
        console.log(res.html)
        wx.setStorageSync("content", res.html); // 缓存本地
        console.log(res.html)
      }
    })
  },
  clear() {
    this.editorCtx.clear({
      success: function (res) {
        // console.log("clear success")
      }
    })
  },
  removeFormat() {
    this.editorCtx.removeFormat()
  },
  insertDate() {
    const date = new Date()
    const formatDate = `${date.getFullYear()}/${date.getMonth() + 1}/${date.getDate()}`
    this.editorCtx.insertText({
      text: formatDate
    })
  },
  insertImage() {
    const that = this
    wx.chooseImage({
      count: 1,
      success: function (res) {
        that.editorCtx.insertImage({
          src: res.tempFilePaths[0],
          data: {
            id: 'abcd',
            role: 'god'
          },
          width: '100%',
          success: function () {
            console.log('insert image success')
          }
        })
      }
    })
  }
})