Vue.jsでsyntax highlightエディタを実装する「vue-prism-editor」

by kabanoki

HTML

<div id="app">
  <prism-editor class="my-editor height-200" v-model="code" :highlight="highlighter" line-numbers></prism-editor>
</div>

<link type="text/css" rel="stylesheet" href="https://unpkg.com/bootstrap/dist/css/bootstrap.min.css" />
<link rel="stylesheet" href="https://unpkg.com/[email protected]/themes/prism-tomorrow.css">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/dist/prismeditor.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.6.10/vue.min.js"></script>
<script src="https://unpkg.com/[email protected]/dist/prismeditor.umd.production.min.js"></script>
<script src="https://unpkg.com/prismjs"></script>

CSS

body {
  padding: 20px;
  font-family: Helvetica;
}

#app {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
  transition: all 0.2s;
}

li {
  margin: 8px 0;
}

h2 {
  font-weight: bold;
  margin-bottom: 15px;
}

del {
  color: rgba(0, 0, 0, 0.3);
}

  .height-200{
    height: 200px  
  }
  
  .my-editor {
    background: #2d2d2d;
    color: #ccc;
    font-family: Fira code, Fira Mono, Consolas, Menlo, Courier, monospace;
    font-size: 14px;
    line-height: 1.5;
    padding: 5px;
  }

  .prism-editor__textarea:focus {
    outline: none;
  }

Vue

const PrismEditor = window['PrismEditor'].PrismEditor;
Vue.component('PrismEditor', PrismEditor);  
new Vue({
  el: '#app',
  data: function(){
    return {
      code: "console.log('hello world')"
    }
  },
  methods: {
    highlighter: function(code) {
      return Prism.highlight(code, Prism.languages.js, "js");
    }
  },
});