javascript - React Draft-js block 插入

Question

工作原理:当用户点击空格键时，将查询 Draft-JS 文本内容中的特定单词。然后该单词的所有实例都被包装在标签中。文本换行后，HTML 将被转换回来，并且 Draft-JS 编辑器状态将被更新:

      const convertedFromHTML= convertFromHTML(newHTML);
      const editorState = this.state.editorState;

      // Set Editor and Content States
      const newContentState = ContentState.createFromBlockArray(
        convertedFromHTML.contentBlocks,
        convertedFromHTML.entityMap
      );

      const nextEditorState = EditorState.push(
        editorState,
        newContentState,
        'insert-text'
      );

      this.setState({ 
        editorState: nextEditorState
      });

block 渲染图:

const blockRenderMap = Immutable.Map({
  'Atomic': {
    element: 'Atomic' ,
    wrapper: <GoogleCustomBlock />
  }
});

const myBlockStyleFn = (contentBlock) => {
   const type = contentBlock.getType();
   switch (type) {
     case 'atomic': {
      return 'GoogleCustomBlock';
   }
}

自定义 block 组件:

// React Components
import React, { Component } from 'react';

class GoogleCustomBlock extends Component {
  constructor(props) {
    super(props);
  }

  render() {
    return (
      <div className='GoogleCustomBlock'>
        {this.props.children}
      </div>
    );
  }
}

导出默认的GoogleCustomBlock；

问题:当用户点击空格键时，就会出现此功能。文本被换行，并且正确的 block 被添加到 DOM 中。我遇到以下两个困难:

• 我需要在文本末尾插入一个空格。
• 光标跳回到文档的开头，但也停留在通过元素创建的新 block 内。我需要它在新 block 之外和文本末尾恢复编辑。

我已经在网上搜索过，但到目前为止还没有运气，感谢任何帮助。

谢谢!

Answer 1

解决方案:突出显示文本并在空格键键盘命令上插入空格:

   insertInlineStyles = (editorState, indexes, googleSearchTerm) => {
      const contentState = editorState.getCurrentContent()
      const selectionState = editorState.getSelection();

      // Loop Through indexes //
      const newSelection = selectionState.merge({
        anchorOffset: index[i],
        focusOffset: googleSearchTerm.length
      })

      // Create new Editor State with Selection on Targeted Word //
      const editorStateWithNewSelection = EditorState.forceSelection(editorState, newSelection);

      // Toggle Inline Style //
      const editorStateWithStyles = RichUtils.toggleInlineStyle(editorStateWithNewSelection,'GoogleStyle');

      // Set Selection Back to Previous //
      const editorStateWithStylesAndPreviousSelection = EditorState.forceSelection(
        editorStateWithStyles,
        selectionState
      )

      // Return Editor //
      return editorStateWithStylesAndPreviousSelection;
   }

    /// INSIDE OF ANOTHER FUNCTION

    /// GET INDEX OF WORD TO HIGHLIGHT
    var indexes = [INDEX OF WORD];

    /// INSERT INLINE STYLES
    var newEditorState = this.insertInlineStyles(this.state.editorState, indexes, googleSearchTerm);

    /// ADD SPACE to TEXT
    let newContentState = Modifier.replaceText(
      newEditorState.getCurrentContent(), // New content
      currentState.getSelection(), // End of old content selection
      " " // Text to add
    );
    let finalEditorState = EditorState.push(
      newEditorState, 
      newContentState, 
      'insert-characters'
    );

    this.setState({ 
      editorState: finalEditorState 
    });