vue使用markdown编辑与展示

1.Vue显示markdown的html页面

1.1 mark编辑

• 下载包

  npm install mavon-editor --save
  

• 使用在main.js中 引入

  import mavonEditor from 'mavon-editor'
  import 'mavon-editor/dist/css/index.css'
  Vue.use(mavonEditor)
  

• 在子组建使用

  • html中

    <FormItem>
                <mavon-editor :style="{ zIndex: '0','54rem'}" ref="md" :toolbars="markdownOption" v-model="formInline.content" @imgAdd="imgAdd" @imgDel="imgDel"/>
              </FormItem>
    # 这里绑定imgAdd为添加图片，为访问后台，添加图片，后台返回对应url
    # imgDel为删除图片，回掉函数去访问后台删除对应函数。
    

  • js中

  // data 中添加markdown要求功能
  markdownOption: {
          bold: true, // 粗体
          italic: true, // 斜体
          header: true, // 标题
          underline: true, // 下划线
          mark: true, // 标记
          superscript: true, // 上角标
          quote: true, // 引用
          ol: true, // 有序列表
          link: true, // 链接
          imagelink: true, // 图片链接
          help: true, // 帮助
          code: true, // code
          subfield: true, // 是否需要分栏
          fullscreen: true, // 全屏编辑
          readmodel: true, // 沉浸式阅读
          /* 1.3.5 */
          undo: true, // 上一步
          trash: true, // 清空
          save: true, // 保存（触发events中的save事件）
          /* 1.4.2 */
          navigation: true // 导航目录
        },
  // methods中定义方法
  imgAdd (pos, $file) {
  			// $file 为文件
        // pos 为插入图片索引位置，这里把图片路径放在一个list中也就是img_file
        console.log($file)
        // 第一步.将图片上传到服务器.
        var formdata = new FormData()
        formdata.append('image', $file)
        this.img_file[pos] = $file
        console.log(this.$http.defaults.baseURL + '/upload/content/picture')
        axios({
          // 请求地址
          url: this.$http.defaults.baseURL + '/upload/content/picture',
          method: 'post',
          data: formdata,
          headers: { 'Content-Type': 'multipart/form-data' }
        }).then((data) => {
          // console.log(JSON.stringify(url))
          // 第二步.将返回的url替换到文本原位置![...](./0) -> ![...](url)
          /**
           * $vm 指为mavonEditor实例，可以通过如下两种方式获取
           * 1.  通过引入对象获取: `import {mavonEditor} from ...` 等方式引入后，`$vm`为`mavonEditor`
           * 2. 通过$refs获取: html声明ref : `<mavon-editor ref=md ></mavon-editor>，`$vm`为 `this.$refs.md`
           * 3. 由于vue运行访问的路径只能在static下，so，我就把图片保存到它这里了
           */
          this.$refs.md.$img2Url(pos, data.data.result.urlpath)
        })
      },
  // 这里是做一个列表删除。
  imgDel (pos) {
        delete this.img_file[pos]
      },
  

1.2 markdown实现html显示

• 导包

  npm install highlight.js --save
  npm install marked --save
  

• main.js引入

  // 代码高亮
  import hljs from 'highlight.js'
  Vue.directive('highlight', (el) => {
    let blocks = el.querySelectorAll('pre code')
    blocks.forEach((block) => {
      hljs.highlightBlock(block)
    })
  })
  

• 组建中使用

  <div class="passage">
  			// v-highlight 代码高亮， 绑定 content
        <div v-highlight v-html="content" class="content"></div>
      </div>
  <script>
  import marked from 'marked'
  ...
  // 通过marked将返回Markdown文本转换html
  this.content = marked(mkdContent)
  </script>
  
  

• 下面是markdown的css样式

  <style>
  h1, h2, h3, h4 {
    color: #111111;
    font-weight: 400;
    margin-top: 1em;
  }
  
  h1, h2, h3, h4, h5 {
    font-family: Georgia, Palatino, serif;
  }
  h1, h2, h3, h4, h5, p , dl{
    margin-bottom: 16px;
    padding: 0;
  }
  h1 {
    font-size: 48px;
    line-height: 54px;
  }
  h2 {
    font-size: 36px;
    line-height: 42px;
  }
  h1, h2 {
    border-bottom: 1px solid #EFEAEA;
    padding-bottom: 10px;
  }
  h3 {
    font-size: 24px;
    line-height: 30px;
  }
  h4 {
    font-size: 21px;
    line-height: 26px;
  }
  h5 {
    font-size: 18px;
    list-style: 23px;
  }
  a {
    color: #0099ff;
    margin: 0;
    padding: 0;
    vertical-align: baseline;
  }
  a:hover {
    text-decoration: none;
    color: #ff6600;
  }
  a:visited {
    /*color: purple;*/
  }
  ul, ol {
    padding: 0;
    padding-left: 24px;
    margin: 0;
  }
  li {
    line-height: 24px;
  }
  p, ul, ol {
    font-size: 16px;
    line-height: 24px;
  }
  
  ol ol, ul ol {
    list-style-type: lower-roman;
  }
  
  /*pre {
      padding: 0px 24px;
      max- 800px;
      white-space: pre-wrap;
  }
  code {
      font-family: Consolas, Monaco, Andale Mono, monospace;
      line-height: 1.5;
      font-size: 13px;
  }*/
  
  code, pre {
    border-radius: 3px;
    background-color:#f7f7f7;
    color: inherit;
  }
  
  code {
    font-family: Consolas, Monaco, Andale Mono, monospace;
    margin: 0 2px;
  }
  
  pre {
    line-height: 1.7em;
    overflow: auto;
    padding: 6px 10px;
    border-left: 5px solid #6CE26C;
    background: #cacaca;
     49rem;
  }
  
  pre > code {
    border: 0;
    display: inline;
    max- initial;
    padding: 0;
    margin: 0;
    overflow: initial;
    line-height: inherit;
    font-size: .85em;
    white-space: pre;
    background: 0 0;
  
  }
  
  code {
    color: #666555;
  }
  /** markdown preview plus 对于代码块的处理有些问题, 所以使用统一的颜色 */
  /*code .keyword {
    color: #8959a8;
  }
  
  code .number {
    color: #f5871f;
  }
  
  code .comment {
    color: #998
  }*/
  
  aside {
    display: block;
    float: right;
     390px;
  }
  blockquote {
    border-left:.5em solid #eee;
    padding: 0 0 0 2em;
    margin-left:0;
  }
  blockquote  cite {
    font-size:14px;
    line-height:20px;
    color:#bfbfbf;
  }
  blockquote cite:before {
    content: '2014 0A0';
  }
  
  blockquote p {
    color: #666;
  }
  hr {
    text-align: left;
    color: #999;
    height: 2px;
    padding: 0;
    margin: 16px 0;
    background-color: #e7e7e7;
    border: 0 none;
  }
  
  dl {
    padding: 0;
  }
  
  dl dt {
    padding: 10px 0;
    margin-top: 16px;
    font-size: 1em;
    font-style: italic;
    font-weight: bold;
  }
  
  dl dd {
    padding: 0 16px;
    margin-bottom: 16px;
  }
  
  dd {
    margin-left: 0;
  }
  
  /* Code below this line is copyright Twitter Inc. */
  
  button,
  input,
  select,
  textarea {
    font-size: 100%;
    margin: 0;
    vertical-align: baseline;
    *vertical-align: middle;
  }
  button, input {
    line-height: normal;
    *overflow: visible;
  }
  button::-moz-focus-inner, input::-moz-focus-inner {
    border: 0;
    padding: 0;
  }
  button,
  input[type="button"],
  input[type="reset"],
  input[type="submit"] {
    cursor: pointer;
    -webkit-appearance: button;
  }
  input[type=checkbox], input[type=radio] {
    cursor: pointer;
  }
  /* override default chrome & firefox settings */
  input:not([type="image"]), textarea {
    -webkit-box-sizing: content-box;
    -moz-box-sizing: content-box;
    box-sizing: content-box;
  }
  
  input[type="search"] {
    -webkit-appearance: textfield;
    -webkit-box-sizing: content-box;
    -moz-box-sizing: content-box;
    box-sizing: content-box;
  }
  input[type="search"]::-webkit-search-decoration {
    -webkit-appearance: none;
  }
  label,
  input,
  select,
  textarea {
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 13px;
    font-weight: normal;
    line-height: normal;
    margin-bottom: 18px;
  }
  input[type=checkbox], input[type=radio] {
    cursor: pointer;
    margin-bottom: 0;
  }
  input[type=text],
  input[type=password],
  textarea,
  select {
    display: inline-block;
     210px;
    padding: 4px;
    font-size: 13px;
    font-weight: normal;
    line-height: 18px;
    height: 18px;
    color: #808080;
    border: 1px solid #ccc;
    -webkit-border-radius: 3px;
    -moz-border-radius: 3px;
    border-radius: 3px;
  }
  select, input[type=file] {
    height: 27px;
    line-height: 27px;
  }
  textarea {
    height: auto;
  }
  /* grey out placeholders */
  :-moz-placeholder {
    color: #bfbfbf;
  }
  ::-webkit-input-placeholder {
    color: #bfbfbf;
  }
  input[type=text],
  input[type=password],
  select,
  textarea {
    -webkit-transition: border linear 0.2s, box-shadow linear 0.2s;
    -moz-transition: border linear 0.2s, box-shadow linear 0.2s;
    transition: border linear 0.2s, box-shadow linear 0.2s;
    -webkit-box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
    -moz-box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
  }
  input[type=text]:focus, input[type=password]:focus, textarea:focus {
    outline: none;
    border-color: rgba(82, 168, 236, 0.8);
    -webkit-box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1), 0 0 8px rgba(82, 168, 236, 0.6);
    -moz-box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1), 0 0 8px rgba(82, 168, 236, 0.6);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1), 0 0 8px rgba(82, 168, 236, 0.6);
  }
  /* buttons */
  button {
    display: inline-block;
    padding: 4px 14px;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 13px;
    line-height: 18px;
    -webkit-border-radius: 4px;
    -moz-border-radius: 4px;
    border-radius: 4px;
    -webkit-box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 1px 2px rgba(0, 0, 0, 0.05);
    -moz-box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 1px 2px rgba(0, 0, 0, 0.05);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 1px 2px rgba(0, 0, 0, 0.05);
    background-color: #0064cd;
    background-repeat: repeat-x;
    background-image: -khtml-gradient(linear, left top, left bottom, from(#049cdb), to(#0064cd));
    background-image: -moz-linear-gradient(top, #049cdb, #0064cd);
    background-image: -ms-linear-gradient(top, #049cdb, #0064cd);
    background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #049cdb), color-stop(100%, #0064cd));
    background-image: -webkit-linear-gradient(top, #049cdb, #0064cd);
    background-image: -o-linear-gradient(top, #049cdb, #0064cd);
    background-image: linear-gradient(top, #049cdb, #0064cd);
    color: #fff;
    text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.25);
    border: 1px solid #004b9a;
    border-bottom-color: #003f81;
    -webkit-transition: 0.1s linear all;
    -moz-transition: 0.1s linear all;
    transition: 0.1s linear all;
    border-color: #0064cd #0064cd #003f81;
    border-color: rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.25);
  }
  button:hover {
    color: #fff;
    background-position: 0 -15px;
    text-decoration: none;
  }
  button:active {
    -webkit-box-shadow: inset 0 3px 7px rgba(0, 0, 0, 0.15), 0 1px 2px rgba(0, 0, 0, 0.05);
    -moz-box-shadow: inset 0 3px 7px rgba(0, 0, 0, 0.15), 0 1px 2px rgba(0, 0, 0, 0.05);
    box-shadow: inset 0 3px 7px rgba(0, 0, 0, 0.15), 0 1px 2px rgba(0, 0, 0, 0.05);
  }
  button::-moz-focus-inner {
    padding: 0;
    border: 0;
  }
  table {
    *border-collapse: collapse; /* IE7 and lower */
    border-spacing: 0;
     51rem;
  }
  table {
    border: solid #ccc 1px;
    -moz-border-radius: 6px;
    -webkit-border-radius: 6px;
    border-radius: 6px;
    /*-webkit-box-shadow: 0 1px 1px #ccc;
    -moz-box-shadow: 0 1px 1px #ccc;
    box-shadow: 0 1px 1px #ccc;   */
  }
  table tr:hover {
    background: #fbf8e9;
    -o-transition: all 0.1s ease-in-out;
    -webkit-transition: all 0.1s ease-in-out;
    -moz-transition: all 0.1s ease-in-out;
    -ms-transition: all 0.1s ease-in-out;
    transition: all 0.1s ease-in-out;
  }
  table td, .table th {
    border-left: 1px solid #ccc;
    border-top: 1px solid #ccc;
    padding: 10px;
    text-align: left;
  }
  
  table th {
    background-color: #dce9f9;
    background-image: -webkit-gradient(linear, left top, left bottom, from(#ebf3fc), to(#dce9f9));
    background-image: -webkit-linear-gradient(top, #ebf3fc, #dce9f9);
    background-image:    -moz-linear-gradient(top, #ebf3fc, #dce9f9);
    background-image:     -ms-linear-gradient(top, #ebf3fc, #dce9f9);
    background-image:      -o-linear-gradient(top, #ebf3fc, #dce9f9);
    background-image:         linear-gradient(top, #ebf3fc, #dce9f9);
    /*-webkit-box-shadow: 0 1px 0 rgba(255,255,255,.8) inset;
    -moz-box-shadow:0 1px 0 rgba(255,255,255,.8) inset;
    box-shadow: 0 1px 0 rgba(255,255,255,.8) inset;*/
    border-top: none;
    text-shadow: 0 1px 0 rgba(255,255,255,.5);
    padding: 5px;
  }
  
  table td:first-child, table th:first-child {
    border-left: none;
  }
  
  table th:first-child {
    -moz-border-radius: 6px 0 0 0;
    -webkit-border-radius: 6px 0 0 0;
    border-radius: 6px 0 0 0;
  }
  table th:last-child {
    -moz-border-radius: 0 6px 0 0;
    -webkit-border-radius: 0 6px 0 0;
    border-radius: 0 6px 0 0;
  }
  table th:only-child{
    -moz-border-radius: 6px 6px 0 0;
    -webkit-border-radius: 6px 6px 0 0;
    border-radius: 6px 6px 0 0;
  }
  table tr:last-child td:first-child {
    -moz-border-radius: 0 0 0 6px;
    -webkit-border-radius: 0 0 0 6px;
    border-radius: 0 0 0 6px;
  }
  table tr:last-child td:last-child {
    -moz-border-radius: 0 0 6px 0;
    -webkit-border-radius: 0 0 6px 0;
    border-radius: 0 0 6px 0;
  }
  .passage {
    padding-left: 4rem;
     59rem;
  }
  .article-title {
    margin: 0;
    padding: 0;
    display: block;
    font-size: 2em;
    margin-block-start: 0.67em;
    margin-block-end: 0.67em;
    margin-inline-start: 0px;
    margin-inline-end: 0px;
    text-align: left;
    color: #000;
    border: 0px;
    font-weight: bold;
    float: left;
    line-height: 1.5;
     100%;
    padding-left: 5px;
  }
  /*.v-enter{*/
  /*  opacity: 0*/
  /*}*/
  /*.v-enter-active{*/
  /*  transition: opacity 3s;*/
  /*}*/
  /*!* 隐藏动画效果 *!*/
  /*.v-leave-to{*/
  /*  opacity: 0;*/
  /*}*/
  /*.v-leave-active {*/
  /*  transition: opacity 3s;*/
  /*}*/
  .v-enter,.v-leave-to{
    transform: translateX(150px);
  }
  /*入场(离场)动画的时间段   */
  .v-enter-active,.v-leave-active{
    transition: all 0.8s ease;
  
  }
  .my-enter,.my-leave-to{
    transform: translateY(70px);
  }
  .my-enter-active,.my-leave-active{
    transition: all 0.8s ease;
  
  }
  </style>