如何停止DraftJS光标跳到文本开头?

本文介绍了如何停止DraftJS光标跳到文本开头?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

涉及DraftJS和Meteor Js应用程序的代码任务-进行实时预览，其中DraftJS中的文本将保存到DB，DB中的文本将显示在另一个组件上.

Code involved using DraftJS and Meteor Js applicationTask - Make a live preview where text from DraftJS will get saved to DB and from DB it get displayed on another component.

但是问题是，一旦数据来自数据库，我就尝试编辑DraftJS光标移到开头.

But problem is once data comes from DB and I try to edit DraftJS cursor moved to the beginning.

代码是

import {Editor, EditorState, ContentState} from 'draft-js';
import React, { Component } from 'react';
import { TestDB } from '../api/yaml-component.js';
import { createContainer } from 'meteor/react-meteor-data';
import PropTypes from 'prop-types';

class EditorComponent extends Component {
  constructor(props) {
    super(props);
    this.state = {
        editorState : EditorState.createEmpty(),
    };
  }

  componentWillReceiveProps(nextProps) {
    console.log('Receiving Props');
    if (!nextProps) return;
    console.log(nextProps);
    let j = nextProps.testDB[0];
    let c = ContentState.createFromText(j.text);
    this.setState({
      editorState: EditorState.createWithContent(c),
    })
  }

  insertToDB(finalComponentStructure) {
    if (!finalComponentStructure) return;
    finalComponentStructure.author = 'Sandeep3005';
    Meteor.call('testDB.insert', finalComponentStructure);
  }


  _handleChange(editorState) {
    console.log('Inside handle change');
    let contentState = editorState.getCurrentContent();
    this.insertToDB({text: contentState.getPlainText()});
    this.setState({editorState});
  }

  render() {
    return (
      <div>
        <Editor
          placeholder="Insert YAML Here"
          editorState={this.state.editorState}
          onChange={this._handleChange.bind(this)}
        />
      </div>
    );
  }
}


    EditorComponent.propTypes = {
     staff: PropTypes.array.isRequired,
    };

    export default createContainer(() => {
      return {
        staff: Staff.find({}).fetch(),
      };
    }, EditorComponent);

任何在正确方向上有帮助的评论都将有用

Any helpful comment in right direction will be useful

推荐答案

调用EditorState.createWithContent(c)时，Draft会为您返回一个新的EditorState，但它不了解您当前的SelectionState.相反，它只会在新的ContentState的第一块中创建一个新的空选择.

When you call EditorState.createWithContent(c) Draft will return a new EditorState for you, but it has no idea about your current SelectionState. Instead, it will just create a new empty selection in the first block of your new ContentState.

要解决此问题，您必须使用当前状态下的SelectionState自行设置SelectionState，例如:

To overcome this, you will have to set the SelectionState yourself, using the SelectionState from your current state, e.g:

const stateWithContent = EditorState.createWithContent(c)
const currentSelection = this.state.editorState.getSelection()
const stateWithContentAndSelection = EditorState.forceSelection(stateWithContent, currentSelection)

this.setState({
  editorState: stateWithContentAndSelection
})

这篇关于如何停止DraftJS光标跳到文本开头?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！

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