富文本编辑器Quill(一)简单介绍

Quill是一个很流行的富文本编辑器，github上star大约21k：

github：https://github.com/quilljs/quill/

使用

<!-- Include stylesheet -->
<link href="https://cdn.quilljs.com/1.3.6/quill.snow.css" rel="stylesheet">

<!-- Create the editor container -->
<div id="editor">
  <p>Hello World!</p>
  <p>Some initial <strong>bold</strong> text</p>
  <p><br></p>
</div>

<!-- Include the Quill library -->
<script src="https://cdn.quilljs.com/1.3.6/quill.js"></script>

<!-- Initialize Quill editor -->
<script>
  var quill = new Quill(\'#editor\', {
    theme: \'snow\'
  });
</script>

下载：

npm install quill@1.3.6

vue中使用：

<template>
  <div>
    <div id="editor">
      <p>Hello World!</p>
      <p>Some initial <strong>bold</strong> text</p>
      <p><br></p>
    </div>
  </div>
</template>

<script>
import Quill from \'quill\'

export default {
  name: "QuillEditor",
  mounted () {
    this.initQuill()
  },
  beforeDestroy () {
    this.quill = null
    delete this.quill
  },
  methods: {
    initQuill () {
      const quill = new Quill(\'#editor\', {
        theme: \'snow\'
      })
      this.quill = quill
    },
  }
}
</script>

效果

创建Quill实例需要两个参数，container与options

Container

container可以是css选择器，也可以是DOM对象：

const editor = new Quill(\'#editor\')

或者

const container = document.getElementById(\'editor\');
const editor = new Quill(container);

Options

包括theme、formats、modules等

const options = {
  debug: \'info\',
  modules: {
    toolbar: \'#toolbar\'
  },
  placeholder: \'Compose an epic...\',
  readOnly: true,
  theme: \'snow\'
};
const editor = new Quill(\'#editor\', options);

获取与显示编辑内容

富文本编辑器的主要作用是编辑文本、保存、显示等。

获取编辑完成的内容：

const html = document.querySelector(\'#editor\').children[0].innerHTML
console.log(html)

内容：

<p>Hello World!</p><p>Some initial <strong>bold</strong> text</p><p><br></p>

获取内容后置于编辑器中显示：

const html = document.querySelector(\'#editor\').children[0].innerHTML
this.quill.pasteHTML(\'<h3>add some title</h3>\' + html)

显示：

Toolbar

编辑器上方一栏可以设置文本格式部分，即为modules中的toolbar，可以使用默认值，也可以定制。

使用数组：

const toolbarOptions = [\'bold\', \'italic\', \'underline\', \'strike\'];

const quill = new Quill(\'#editor\', {
  modules: {
    toolbar: toolbarOptions
  }
});

效果：

也可以分组：

const toolbarOptions = [
  [\'bold\', \'italic\', \'underline\', \'strike\'],        // toggled buttons
  [\'blockquote\', \'code-block\'],

  [{ \'header\': 1 }, { \'header\': 2 }],               // custom button values
  [{ \'list\': \'ordered\'}, { \'list\': \'bullet\' }],
  [{ \'script\': \'sub\'}, { \'script\': \'super\' }],      // superscript/subscript
  [{ \'indent\': \'-1\'}, { \'indent\': \'+1\' }],          // outdent/indent
  [{ \'direction\': \'rtl\' }],                         // text direction

  [{ \'size\': [\'small\', false, \'large\', \'huge\'] }],  // custom dropdown
  [{ \'header\': [1, 2, 3, 4, 5, 6, false] }],

  [{ \'color\': [] }, { \'background\': [] }],          // dropdown with defaults from theme
  [{ \'font\': [] }],
  [{ \'align\': [] }],

  [\'clean\']                                         // remove formatting button
];

const quill = new Quill(\'#editor\', {
  modules: {
    toolbar: toolbarOptions
  },
  theme: \'snow\'
});

效果

同一组会置于同一<span>中。

也可以使用css选择器，最全的toolbar：

<div id="toolbar">
    <span class="ql-formats">
      <select class="ql-font"></select>
      <select class="ql-size"></select>
    </span>
    <span class="ql-formats">
      <button class="ql-bold"></button>
      <button class="ql-italic"></button>
      <button class="ql-underline"></button>
      <button class="ql-strike"></button>
    </span>
    <span class="ql-formats">
      <select class="ql-color"></select>
      <select class="ql-background"></select>
    </span>
    <span class="ql-formats">
      <button class="ql-script" value="sub"></button>
      <button class="ql-script" value="super"></button>
    </span>
    <span class="ql-formats">
      <button class="ql-header" value="1"></button>
      <button class="ql-header" value="2"></button>
      <button class="ql-blockquote"></button>
      <button class="ql-code-block"></button>
    </span>
    <span class="ql-formats">
      <button class="ql-list" value="ordered"></button>
      <button class="ql-list" value="bullet"></button>
      <button class="ql-indent" value="-1"></button>
      <button class="ql-indent" value="+1"></button>
    </span>
    <span class="ql-formats">
      <button class="ql-direction" value="rtl"></button>
      <select class="ql-align"></select>
    </span>
    <span class="ql-formats">
      <button class="ql-link"></button>
      <button class="ql-image"></button>
      <button class="ql-video"></button>
      <button class="ql-formula"></button>
    </span>
    <span class="ql-formats">
      <button class="ql-clean"></button>
    </span>
  </div>

<script>
  const quill = new Quill(\'#editor\', {
    modules: {
      toolbar: \'#toolbar\'
    }
  });
</script>

　　效果：

toolbar里的control与Quill的format是对应的，可以用来添加或者移除format：

formats

我们可以添加定制的handler来改变默认行为：

const toolbarOptions = {
  handlers: {
    // handlers object will be merged with default handlers object
    \'link\': function(value) {
      if (value) {
        var href = prompt(\'Enter the URL\');
        this.quill.format(\'link\', href);
      } else {
        this.quill.format(\'link\', false);
      }
    }
  }
}

const quill = new Quill(\'#editor\', {
  modules: {
    toolbar: toolbarOptions
  }
});

// Handlers can also be added post initialization
const toolbar = quill.getModule(\'toolbar\');
toolbar.addHandler(\'image\', showImageUI);

可以定制handler来进行图片视频上传。