vue codemirror实现在线代码编译器
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2022-06-17 16:06:57
前言如果我们想在web端实现在线代码编译的效果,那么需要使用组件vue-codemirror,他是将codemirror进行了再次封装 支持代码高亮 62种主题颜色,例如monokai等等...
前言
如果我们想在web端实现在线代码编译的效果,那么需要使用组件vue-codemirror
,他是将codemirror
进行了再次封装
- 支持代码高亮
- 62种主题颜色,例如monokai等等
- 支持json, sql, javascript,css,xml, html,yaml, markdown, python编辑模式,默认为 json
- 支持快速搜索
- 支持自动补全提示
- 支持自动匹配括号
环境准备
npm install jshint npm install jsonlint npm install script-loader npm install vue-codemirror
封装组件
我们可以在项目中的components
中将vue-codemirror
进行再次封装
<template> <codemirror ref="mycm" v-model="editorvalue" :options="cmoptions" @changes="oncmcodechanges" @blur="oncmblur" @keydown.native="onkeydown" @mousedown.native="onmousedown" @paste.native="onpaste" > </codemirror> </template> <script> import { codemirror } from "vue-codemirror"; import 'codemirror/keymap/sublime' import "codemirror/mode/javascript/javascript.js"; import "codemirror/mode/xml/xml.js"; import "codemirror/mode/htmlmixed/htmlmixed.js"; import "codemirror/mode/css/css.js"; import "codemirror/mode/yaml/yaml.js"; import "codemirror/mode/sql/sql.js"; import "codemirror/mode/python/python.js"; import "codemirror/mode/markdown/markdown.js"; import "codemirror/addon/hint/show-hint.css"; import "codemirror/addon/hint/show-hint.js"; import "codemirror/addon/hint/javascript-hint.js"; import "codemirror/addon/hint/xml-hint.js"; import "codemirror/addon/hint/css-hint.js"; import "codemirror/addon/hint/html-hint.js"; import "codemirror/addon/hint/sql-hint.js"; import "codemirror/addon/hint/anyword-hint.js"; import "codemirror/addon/lint/lint.css"; import "codemirror/addon/lint/lint.js"; import "codemirror/addon/lint/json-lint"; import 'codemirror/addon/selection/active-line' import "codemirror/addon/hint/show-hint.js"; import "codemirror/addon/hint/anyword-hint.js"; require("script-loader!jsonlint"); import "codemirror/addon/lint/javascript-lint.js"; import "codemirror/addon/fold/foldcode.js"; import "codemirror/addon/fold/foldgutter.js"; import "codemirror/addon/fold/foldgutter.css"; import "codemirror/addon/fold/brace-fold.js"; import "codemirror/addon/fold/xml-fold.js"; import "codemirror/addon/fold/comment-fold.js"; import "codemirror/addon/fold/markdown-fold.js"; import "codemirror/addon/fold/indent-fold.js"; import "codemirror/addon/edit/closebrackets.js"; import "codemirror/addon/edit/closetag.js"; import "codemirror/addon/edit/matchtags.js"; import "codemirror/addon/edit/matchbrackets.js"; import "codemirror/addon/selection/active-line.js"; import "codemirror/addon/search/jump-to-line.js"; import "codemirror/addon/dialog/dialog.js"; import "codemirror/addon/dialog/dialog.css"; import "codemirror/addon/search/searchcursor.js"; import "codemirror/addon/search/search.js"; import "codemirror/addon/display/autorefresh.js"; import "codemirror/addon/selection/mark-selection.js"; import "codemirror/addon/search/match-highlighter.js"; export default { name: "index", components: {codemirror}, props: ["cmtheme", "cmmode", "cmindentunit", "autoformatjson"], data() { return { editorvalue: '{}', cmoptions: { theme: !this.cmtheme || this.cmtheme === "default" ? "default" : this.cmtheme, // 主题 mode: !this.cmmode || this.cmmode === "default" ? "application/json" : this.cmmode, // 代码格式 tabsize: 4, // tab的空格个数 indentunit: !this.cmindentunit ? 2 : this.cmindentunit, // 一个块(编辑语言中的含义)应缩进多少个空格 autocorrect: true, // 自动更正 spellcheck: true, // 拼写检查 lint: true, // 检查格式 linenumbers: true, //是否显示行数 linewrapping: true, //是否自动换行 styleactiveline: true, //line选择是是否高亮 keymap: 'sublime', // sublime编辑器效果 matchbrackets: true, //括号匹配 autoclosebrackets: true, // 在键入时将自动关闭括号和引号 matchtags: { bothtags: true }, // 将突出显示光标周围的标签 foldgutter: true, // 可将对象折叠,与下面的gutters一起使用 gutters: [ "codemirror-lint-markers", "codemirror-linenumbers", "codemirror-foldgutter" ], highlightselectionmatches: { minchars: 2, style: "matchhighlight", showtoken: true }, }, enableautoformatjson: this.autoformatjson == null ? true : this.autoformatjson, // json编辑模式下,输入框失去焦点时是否自动格式化,true 开启, false 关闭 } }, created() { try { if (!this.editorvalue) { this.cmoptions.lint = false; return; } if (this.cmoptions.mode === "application/json") { if (!this.enableautoformatjson) { return; } this.editorvalue = this.formatstrinjson(this.editorvalue); } } catch (e) { console.log("初始化codemirror出错:" + e); } }, methods: { resetlint() { if (!this.$refs.mycm.codemirror.getvalue()) { this.$nexttick(() => { this.$refs.mycm.codemirror.setoption("lint", false); }); return; } this.$refs.mycm.codemirror.setoption("lint", false); this.$nexttick(() => { this.$refs.mycm.codemirror.setoption("lint", true); }); }, // 格式化字符串为json格式字符串 formatstrinjson(strvalue) { return json.stringify( json.parse(strvalue), null, this.cmindentunit ); }, oncmcodechanges(cm, changes) { this.editorvalue = cm.getvalue(); this.resetlint(); }, // 失去焦点时处理函数 oncmblur(cm, event) { try { let editorvalue = cm.getvalue(); if (this.cmoptions.mode === "application/json" && editorvalue) { if (!this.enableautoformatjson) { return; } this.editorvalue = this.formatstrinjson(editorvalue); } } catch (e) { // 啥也不做 } }, // 按下键盘事件处理函数 onkeydown(event) { const keycode = event.keycode || event.which || event.charcode; const keycombination = event.ctrlkey || event.altkey || event.metakey; if (!keycombination && keycode > 64 && keycode < 123) { this.$refs.mycm.codemirror.showhint({ completesingle: false }); } }, // 按下鼠标时事件处理函数 onmousedown(event) { this.$refs.mycm.codemirror.closehint(); }, // 黏贴事件处理函数 onpaste(event) { if (this.cmoptions.mode === "application/json") { try { this.editorvalue = this.formatstrinjson(this.editorvalue); } catch (e) { // 啥都不做 } } }, } } </script> <style scoped> </style>
此组件默认配置了json编译器,cmoptions
中是代码编译器的配置项,需要额外的功能也可以去看官方文档配置
接下来看展示效果
可以看到我们输入了json格式的字符串,即使格式不正确,会给我们错误提示,并且也会给我们自动格式化
python编译器
我们封装的组件默认是json编译器,如果我们想使用其他语言,也很简单,只需要导入其他语言的mode
<template> <div> <el-button type="primary" icon="el-icon-circle-check-outline" @click="handleconfirm" round> 点击保存 </el-button> <el-button icon="el-icon-caret-right" type="info" @click="handleruncode" round> 在线运行 </el-button> <code-editor :cmtheme="cmtheme" :cmmode="cmmode" > </code-editor> </div> </template> <script> import codeeditor from '@/components/codeeditor/index' import 'codemirror/theme/monokai.css' // 导入monokai主题 import 'codemirror/mode/python/python.js' // 导入python export default { name: "index", components: { codeeditor }, data() { return { cmtheme: "monokai", cmmode: "python", } }, methods: { handleconfirm() {}, handleruncode() {} } } </script> <style> .codemirror { position: relative; height: 100vh; overflow: hidden; margin-top: 10px; } </style> <style lang="scss" scoped> </style>
效果如下
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