richTextEditor

 import React from 'react';

import {Editor, EditorState,getDefaultKeyBinding, RichUtils} from 'draft-js';
import  '../assets/StyleTextEditor.css';
import '../../node_modules/draft-js/dist/Draft.css';



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

       this.focus = () => this.refs.editor.focus();
       this.onChange = (editorState) => this.setState({editorState});

       this.handleKeyCommand = this._handleKeyCommand.bind(this);
       this.mapKeyToEditorCommand = this._mapKeyToEditorCommand.bind(this);
       this.toggleBlockType = this._toggleBlockType.bind(this);
       this.toggleInlineStyle = this._toggleInlineStyle.bind(this);
     }

     _handleKeyCommand(command, editorState) {
       const newState = RichUtils.handleKeyCommand(editorState, command);
       if (newState) {
         this.onChange(newState);
         return true;
       }
       return false;
     }

     _mapKeyToEditorCommand(e) {
       if (e.keyCode === 9 /* TAB */) {
         const newEditorState = RichUtils.onTab(
           e,
           this.state.editorState,
           4, /* maxDepth */
         );
         if (newEditorState !== this.state.editorState) {
           this.onChange(newEditorState);
         }
         return;
       }
       return getDefaultKeyBinding(e);
     }

     _toggleBlockType(blockType) {
       this.onChange(
         RichUtils.toggleBlockType(
           this.state.editorState,
           blockType
         )
       );
     }

     _toggleInlineStyle(inlineStyle) {
       this.onChange(
         RichUtils.toggleInlineStyle(
           this.state.editorState,
           inlineStyle
         )
       );
     }

     render() {
       const {editorState} = this.state;

       // If the user changes block type before entering any text, we can
       // either style the placeholder or hide it. Let's just hide it now.
       let className = 'RichEditor-editor';
       var contentState = editorState.getCurrentContent();
       if (!contentState.hasText()) {
         if (contentState.getBlockMap().first().getType() !== 'unstyled') {
           className += ' RichEditor-hidePlaceholder';
         }
       }

       return (
         <div className="RichEditor-root">
           <BlockStyleControls
             editorState={editorState}
             onToggle={this.toggleBlockType}
           />
           <InlineStyleControls
             editorState={editorState}
             onToggle={this.toggleInlineStyle}
           />
           <div className={className} onClick={this.focus}>
             <Editor
               blockStyleFn={getBlockStyle}
               customStyleMap={styleMap}
               editorState={editorState}
               handleKeyCommand={this.handleKeyCommand}
               keyBindingFn={this.mapKeyToEditorCommand}
               onChange={this.onChange}
               placeholder="Tell a story..."
               ref="editor"
               spellCheck={true}
             />
           </div>
         </div>
       );
     }
   }

   // Custom overrides for "code" style.
   const styleMap = {
     CODE: {
       backgroundColor: 'rgba(0, 0, 0, 0.05)',
       fontFamily: '"Inconsolata", "Menlo", "Consolas", monospace',
       fontSize: 16,
       padding: 2,
     },
   };

   function getBlockStyle(block) {
     switch (block.getType()) {
       case 'blockquote': return 'RichEditor-blockquote';
       default: return null;
     }
   }

   class StyleButton extends React.Component {
     constructor() {
       super();
       this.onToggle = (e) => {
         e.preventDefault();
         this.props.onToggle(this.props.style);
       };
     }

     render() {
       let className = 'RichEditor-styleButton';
       if (this.props.active) {
         className += ' RichEditor-activeButton';
       }

       return (
         <span className={className} onMouseDown={this.onToggle}>
           {this.props.label}
         </span>
       );
     }
   }

   const BLOCK_TYPES = [
     {label: 'H1', style: 'header-one'},
     {label: 'H2', style: 'header-two'},
     {label: 'H3', style: 'header-three'},
     {label: 'H4', style: 'header-four'},
     {label: 'H5', style: 'header-five'},
     {label: 'H6', style: 'header-six'},
     {label: 'Blockquote', style: 'blockquote'},
     {label: 'UL', style: 'unordered-list-item'},
     {label: 'OL', style: 'ordered-list-item'},
     {label: 'Code Block', style: 'code-block'},
   ];

   const BlockStyleControls = (props) => {
     const {editorState} = props;
     const selection = editorState.getSelection();
     const blockType = editorState
       .getCurrentContent()
       .getBlockForKey(selection.getStartKey())
       .getType();

     return (
       <div className="RichEditor-controls">
         {BLOCK_TYPES.map((type) =>
           <StyleButton
             key={type.label}
             active={type.style === blockType}
             label={type.label}
             onToggle={props.onToggle}
             style={type.style}
           />
         )}
       </div>
     );
   };

   var INLINE_STYLES = [
     {label: 'Bold', style: 'BOLD'},
     {label: 'Italic', style: 'ITALIC'},
     {label: 'Underline', style: 'UNDERLINE'},
     {label: 'Monospace', style: 'CODE'},
   ];

   const InlineStyleControls = (props) => {
     const currentStyle = props.editorState.getCurrentInlineStyle();
     
     return (
       <div className="RichEditor-controls">
         {INLINE_STYLES.map((type) =>
           <StyleButton
             key={type.label}
             active={currentStyle.has(type.style)}
             label={type.label}
             onToggle={props.onToggle}
             style={type.style}
           />
         )}
       </div>
     );
   };

export default RichTextEditor;


//In App.js


import React, {Component} from 'react'; 
import RichTextEditor from './components/RichTextEditor';
import './assets/StyleApp.css';


class App extends Component { 
     render(){  
          return(
               <div className="editor">
                    <RichTextEditor />
               </div>
          );    
     }
}

export default App;

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