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rich-text

rich text component.

Example

bxml


<view class="container">
  <head title="rich-text"></head>
  <view class="page-section tc">
    <view class="page-body">
      <view class="rich-text-picker">
        <picker
          mode="selector"
          range="{{SPACE_RANGE}}"
          value="{{rangeIndex}}"
          bindchange="onPickChange"
        >
          <view class="bnui-input">
            Select a space:&nbsp;
            {{space || "default"}}
          </view>
        </picker>
      </view>

      <view class="page-section">
        <view class="page-section-title">HTML string</view>
        <view class="rich-text-textarea-wrapper">
          <textarea
            value="{{html}}"
            bindinput="onTextareaInput"
            maxlength="{{3000}}"
          />
        </view>
        <view class="rich-text-wrp">
          <rich-text
            nodes="{{html}}"
            space="{{space}}"
            bindtap="onRichTextTap"
            bind:longpress="onRichTextLongPress"
          ></rich-text>
        </view>
      </view>

      <view class="page-section">
        <view class="page-section-title">Nodes</view>
        <view class="rich-text-textarea-wrapper">
          <textarea
            value="{{nodesStr}}"
            bindinput="onNodesChange"
            maxlength="{{3000}}"
          />
        </view>
        <view class="rich-text-wrp">
          <rich-text
            nodes="{{nodes}}"
            space="{{space || undefined}}"
          ></rich-text>
        </view>
      </view>
    </view>
  </view>
</view>

js

Page({
  data: {
    SPACE_RANGE: ['', 'nbsp', 'ensp', 'emsp'],
    rangeIndex: 1,
    space: 'nbsp',
    html: `<span>
      <div
        class="div_class"
        style="line-height: 16px; color: red;"
        id="div"
      >
        Hello&nbsp;World!1&emsp;2&ensp;3
      </div>
      <ol start="10">
        <li>ol with 'start=10'</li>
      </ol>
      <tr colspan="1" rowSpan="2">case-insensitive</tr>
      <img src="https://github.githubassets.com/images/icons/emoji/tada.png" style="width: 20px">
    </span>`,
    nodes: [
      {
        name: 'div',
        attrs: {
          class: 'div_class',
          style: 'line-height: 16px; color: red;',
          id: 'div'
        },
        children: [
          {
            type: 'text',
            text: 'Hello&nbsp;World!1&emsp;2&ensp;3'
          }
        ]
      }
    ],
    nodesStr: JSON.stringify([
      {
        name: 'div',
        attrs: {
          class: 'div_class',
          style: 'line-height: 16px; color: red;',
          id: 'div'
        },
        children: [
          {
            type: 'text',
            text: 'Hello&nbsp;World!1&emsp;2&ensp;3'
          }
        ]
      }
    ], null, 2)
  },
  onPickChange(e) {
    console.log('[rich-text] onPickChange', e);
    const space = this.data.SPACE_RANGE[e.detail.value]
    this.setData({
      space,
      rangeIndex: e.detail.value
    })
  },
  onTextareaInput(e) {
    this.setData({
      html: e.detail.value
    })
  },
  onRichTextTap(){
    console.log(`[rich-text] bindtap`, e)
  },
  onRichTextLongPress(){
    console.log(`[rich-text] onLongPress`, e)
  },
  onNodesChange(e) {
    try {
      const nodes = JSON.parse(e.detail.value)
      console.log('[rich-text] onNodesChange', nodes);
      this.setData({
        nodes,
        nodesStr: e.detail.value
      })
    } catch (error) {
      console.log(error)
    }
  }
})

Props​

PropertyTypeDefault ValueRequiredDescription
nodesarray/string[]trueNode list/HTML String
spacestringtextfalseDisplay continuous spaces

Valid values of nodes​

Now supports two types of nodes, distinguished by type, namely element nodes and text nodes, the default is element nodes, HTML nodes displayed in the rich text area.

type = node​

ValueTypeDescription
namestringtag name
attrsObjectattributes
childrenarraychildren of this element.

type = text​

ValueTypeDescription
textstringtext

Bug & Tip

  • tip: nodes Not recommended. String Type, performance will drop.
  • tip: Masking all node events within a component.
  • tip: attrs Property is not supported id Support class.
  • tip: name Property is not case sensitive.
  • tip: If an untrusted HTML node is used, the node and all its children are removed.
  • tip: img Tags only support web pictures
  • tip: If you use the rich-text Component, then only the custom component s wxss Style pair rich-text to hit the target class Entry into force.