微信小程序官方组件展示之表单组件editor源码

Page({
  data: {
    formats: {},
    readOnly: false,
    placeholder: '开始输入...',
    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')
      }
    })
  },
  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: '80%',
          success: function () {
            console.log('insert image success')
          }
        })
      }
    })
  }
})

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

.container {
 position: absolute; 
 top: 0; 
 left: 0; 
  width: 100%;
}
.ql-container {
 box-sizing: border-box;
 width: 100%;
 height: 100%;
 font-size: 16px;
 line-height: 1.5;
 overflow: auto;
 padding: 10px 10px 20px 10px;
 border: 1px solid #ECECEC;
}
.ql-active {
 color: #22C704;
}
.iconfont {
 display: inline-block;
 width: 30px;
 height: 30px;
 cursor: pointer;
 font-size: 20px;
}
.toolbar {
 box-sizing: border-box;
 padding: 0 10px;
 height: 50px;
 width: 100%;
 position: fixed;
 left: 0;
 right: 100%;
 bottom: 0;
 display: flex;
 align-items: center;
 justify-content: space-between;
 border: 1px solid #ECECEC;
 border-left: none;
 border-right: none;
}