react-codemirror2代码编辑器

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1、安装

npm install react-codemirror2 codemirror --save

2、使用

 1 import {UnControlled as CodeMirror} from 'react-codemirror2'
 2 import 'codemirror/lib/codemirror.js'
 3 import 'codemirror/lib/codemirror.css';
 4 // 主题风格
 5 import 'codemirror/theme/solarized.css';
 6 // 代码模式，clike是包含java,c++等模式的
 7 import 'codemirror/mode/clike/clike';
 8 import 'codemirror/mode/css/css';
 9 //ctrl+空格代码提示补全
10 import 'codemirror/addon/hint/show-hint.css';
11 import 'codemirror/addon/hint/show-hint';
12 import 'codemirror/addon/hint/anyword-hint.js';
13 //代码高亮
14 import 'codemirror/addon/selection/active-line';
15 //折叠代码
16 import 'codemirror/addon/fold/foldgutter.css';
17 import 'codemirror/addon/fold/foldcode.js';
18 import 'codemirror/addon/fold/foldgutter.js';
19 import 'codemirror/addon/fold/brace-fold.js';
20 import 'codemirror/addon/fold/comment-fold.js';
21 import 'codemirror/addon/edit/closebrackets';
22 import 'codemirror/addon/edit/matchBrackets';
23 
24 export default class Index extends Component {
25   constructor() {
26     super();
27     this.instance = null;
28   }
29   state = {
30     data:'',
31   }
32   render(){
33     const {data}=this.state
34     let that=this
35     return(
36      <CodeMirror
37           editorDidMount={editor => { this.instance = editor }}
38           value={data}
39           options={{
40           mode: {name:'text/css'},
41           theme: 'solarized dark',
42           autofocus:true,//自动获取焦点
43           styleActiveLine:true,//光标代码高亮
44           lineNumbers: true, //显示行号
45           smartIndent:true,  //自动缩进
46           //start-设置支持代码折叠
47           lineWrapping:true,
48           foldGutter:true,
49           gutters:['CodeMirror-linenumbers','CodeMirror-foldgutter'],//end
50           extraKeys:{
51               "Ctrl":"autocomplete",
52               "Ctrl-S": function (editor) {
53                       that.codeSave(editor)
54                     },
55               "Ctrl-Z":function (editor) {
56                       editor.undo();
57                     },//undo
58               "F8":function (editor) {
59                       editor.redo();
60                     },//Redo
61                   },
62               matchBrackets: true,  //括号匹配，光标旁边的括号都高亮显示
63               autoCloseBrackets: true //键入时将自动关闭()[]{}''""
64                 }}
65                 // onChange={this.codeOnChange}
66 
67                 // 在失去焦点的时候触发，这个时候放数据最好
68                 // onBlur={this.codeOnBlur}
69 
70             // // 这个必须加上，否则在一些情况下，第二次打开就会有问题
71             // //     onBeforeChange={(editor, data, value) => {
72             // //       console.log("onBeforeChange fresh")
73             // //       console.log(JSON.stringify(data));
74             // //     }}
75             //     /* HERE: pick out only the value. and might as well get name. */
76             />  ) 
77 }}

 更多：https://codemirror.net/doc/manual.html

来源：https://www.cnblogs.com/freely/p/13483320.html