Vue3中使用Monaco-editor的教程详解

import { defineConfig} from 'vite'
 
// vs code 编辑器配置
import monacoEditorPlugin from 'vite-plugin-monaco-editor'
 
// https://vitejs.dev/config/
export default ({ mode }) => {
  return defineConfig({
    plugins: [
      monacoEditorPlugin({
        languageWorkers: ['editorWorkerService', 'typescript', 'json', 'html']
      })
    ]
  })
}

import * as monaco from 'monaco-editor'
import useCommonStore from '@/store/common'
import { ref, nextTick, onBeforeUnmount } from 'vue'
 
export function useMonacoEditor(language: string = 'javascript') {
  // 编辑器示例
  let monacoEditor: monaco.editor.IStandaloneCodeEditor | null = null
  // 目标元素
  const monacoEditorRef = ref<HTMLElement | null>(null)
 
  // 创建实例
  function createEditor(editorOption: monaco.editor.IStandaloneEditorConstructionOptions = {}) {
    if(!monacoEditorRef.value) return
    monacoEditor = monaco.editor.create(monacoEditorRef.value, {
      // 初始模型
      model: monaco.editor.createModel('', language),
      // 是否启用预览图
      minimap: { enabled: true },
      // 圆角
      roundedSelection: true,
      // 主题
      theme: useCommonStore().mode == 'dark' ? 'vs-dark' : 'vs',
      // 主键
      multiCursorModifier: 'ctrlCmd',
      // 滚动条
      scrollbar: {
        verticalScrollbarSize: 8,
        horizontalScrollbarSize: 8
      },
      // 行号
      lineNumbers: 'on',
      // tab大小
      tabSize: 2,
      //字体大小
      fontSize: 16,
      // 控制编辑器在用户键入、粘贴、移动或缩进行时是否应自动调整缩进
      autoIndent: 'advanced',
      // 自动布局
      automaticLayout: true,
      ...editorOption
    })
    return monacoEditor
  }
 
  // 格式化
  async function formatDoc() {
    await monacoEditor?.getAction('editor.action.formatDocument')?.run()
  }
 
  // 数据更新
  function updateVal(val: string) {
    nextTick(() => {
      if(getOption(monaco.editor.EditorOption.readOnly)) {
        updateOptions({ readOnly: false })
      }
      monacoEditor?.setValue(val)
      setTimeout(async () => {
        await formatDoc()
      }, 10)
    })
  }
 
  // 配置更新
  function updateOptions(opt: monaco.editor.IStandaloneEditorConstructionOptions) {
    monacoEditor?.updateOptions(opt)
  }
 
  // 获取配置
  function getOption(name: monaco.editor.EditorOption) {
    return monacoEditor?.getOption(name)
  }
 
  // 获取实例
  function getEditor() {
    return monacoEditor
  }
 
  // 页面离开 销毁
  onBeforeUnmount(() => {
    if(monacoEditor) {
      monacoEditor.dispose()
    }
  })
 
  return {
    monacoEditorRef,
    createEditor,
    getEditor,
    updateVal,
    updateOptions,
    getOption,
    formatDoc
  }
}

<template>
  <div ref="monacoEditorRef" :style="monacoEditorStyle"></div>
</template>
<script setup lang="ts">
import { useMonacoEditor } from '@/hooks'
import { onMounted, computed, watch } from 'vue'
 
const props = withDefaults(defineProps<{
  width?: string | number,
  height?: string | number,
  language?: string,
  editorOption?: Object,
  modelValue: string
}>(), {
  width: '100%',
  height: '100%',
  language: 'javascript',
  editorOption: () => ({}),
  modelValue: ''
})
 
const emits = defineEmits<{
  (e: 'blue'): void,
  (e: 'update:modelValue', val: string): void
}>()
 
const monacoEditorStyle = computed(() => {
  return { 
    width: typeof props.width === 'string' ? props.width : props.width + 'px', 
    height: typeof props.height === 'string' ? props.height : props.height + 'px'
  }
})
 
const { monacoEditorRef, createEditor, updateVal, updateOptions, getEditor } = useMonacoEditor(props.language)
 
onMounted(() => {
  const monacoEditor = createEditor(props.editorOption)
  updateMonacoVal(props.modelValue)
  monacoEditor?.onDidChangeModelContent(() => {
    emits('update:modelValue', monacoEditor!.getValue())
  })
  monacoEditor?.onDidBlurEditorText(() => {
    emits('blue')
  })
})
 
watch(() => props.modelValue, () => {
  updateMonacoVal(props.modelValue)
})
 
function updateMonacoVal(val: string) {
  if(val !== getEditor()?.getValue()) {
    updateVal(val)
  }
}
 
defineExpose({ updateOptions })
</script>

<div class="edit-container">
  <MonacoEditor ref="MonacoEditRef" v-model="editJson" language="json" />
</div>
<script setup lang="ts">
import MonacoEditor from '@/components/MonacoEditor/index.vue'
import { ref } from 'vue'
 
let editJson = ref('')
 
const MonacoEditRef = ref<InstanceType<typeof MonacoEditor>>()
 
//MonacoEditRef.value!.updateOptions({ theme: 'vs' }) 调用子组件方法修改配置
</script>