md-editor-rt

🎄 md-editor-rt

English | 中文

Markdown editor for react, developed in jsx and typescript.

• Documentation and demo：Go

• Use it online：Go

• The same series editor for vue3：md-editor-v3

⭐️ Features

• Toolbar, screenfull or screenfull in web pages and so on.
• Themes, Built-in default and dark themes.
• Shortcut key for editor.
• Beautify your content by prettier(only for markdown content, not the code and other text).
• Multi-language, build-in Chinese and English(default: Chinese).
• Upload picture, paste or clip the picture and upload it.
• Render article directly(no editor, no event listener, only preview content).
• Theme of preview, defalut, vuepress, github, cyanosis, mk-cute, smart-blue styles(not identical). It can be customized also(Refer to example page).
• mermaid(>=1.3.0), katex mathematical formula（>=1.4.0）.
• Customize the toolbar as you like.

📦 Install

yarn add md-editor-rt

Please install @types/marked in your typescript project if you want to configure renderer:

yarn add @types/marked -D

Install existing extension of language and theme of preview:

yarn add @vavt/md-editor-extension

For more ways to use or contribute, please refer to: md-editor-extension

💡 Usage

import React, { useState } from 'react';
import MdEditor from 'md-editor-rt';
import 'md-editor-rt/lib/style.css';

export default () => {
  const [text, setText] = useState('# Hello Editor');

  return <MdEditor modelValue={text} onChange={setText} />;
};

🗺 Preview

Default theme	Dark theme	Preview only

mark and emoji extensions

🎁 Apis

🔩 Props

name	type	default	description
modelValue	string	''	Markdown content
theme	'light' | 'dark'	'light'	Editor theme
class	string	''
historyLength	number	10	The max length of history(if it is too big, editor will use more RAM)
pageFullscreen	boolean	false	Screenfull in web page
preview	boolean	true	Preview content in editor
htmlPreview	boolean	false	Preview html in editor
previewOnly	boolean	false	Only render article content, no toolbar, no edit area
language	string	'zh-CN'	Build-in language('zh-CN','en-US')
toolbars	Array<ToolbarNames | number>	[toolbars]	Show contents of toolbar, all keyssee toolbars below
toolbarsExclude	Array<ToolbarNames | number>	[]	Don't show contents of toolbar, all keystoolbars
noPrettier	boolean	false	Use prettier to beautify content or not
editorId	string	'md-editor-rt'	Editor id, it is used when there are more than two editors in the same page
tabWidth	number	2	One tab eq some spaces
showCodeRowNumber	boolean	false	Show row number for code block or not
previewTheme	'default' | 'github' | 'vuepress' | 'mk-cute' | 'smart-blue' | 'cyanosis'	'default'	Preview theme, can be customized
style	CSSProperties	{}	Editor inline style
tableShape	[number, number]	[6, 4]	Preset the size of the table, [columns, rows]
noMermaid	boolean	false	Use mermaid or not
placeholder	string	''
noKatex	boolean	false	Use katex or not
defToolbars	Array<DropdownToolbar | NormalToolbar | ModalToolbar>	[]	Custom toolbar in DropdownToolbar, NormalToolbar or ModalToolbar
codeTheme	'atom' | 'a11y' | 'github' | 'gradient' | 'kimbie' | 'paraiso' | 'qtcreator' | 'stackoverflow'	'atom'	Highlight code style, can be customized also
markedHeadingId	(text: string, level: number, index: number) => string	(text) => text	H1-H6 ID generator
sanitize	(html: string) => string	(html) => html	Sanitize the html, prevent XSS
footers	Array<'markdownTotal' | '=' | 'scrollSwitch' | number>	['markdownTotal', '=', 'scrollSwitch']	Show contents of footer, they are divided by '='. Set it to [] to hidden footer
scrollAuto	boolean	true	Scroll default setting
defFooters	Array<string | ReactElement>	[]	Custom footer
noIconfont	boolean	false	Not append iconfont script, download and import it by yourself
formatCopiedText	(text: string) => string	(text: string) => text	Format copied code
noUploadImg	boolean	false	Not show the entrance to upload pictures
codeStyleReverse	boolean	true	Code style will be reversed to dark while code block of the theme has a dark background
codeStyleReverseList	Array<string>	['default', 'mk-cute']	Themes to be reversed
autoFocus	boolean	false	same as autofocus in native textarea
disabled	boolean	false	same as disabled in native textarea
readOnly	boolean	false	same as readonly in native textarea
maxLength	number		same as maxlength in native textarea
autoDetectCode	boolean	false	auto detect the type of pasted code, only support that copied from vscode

『toolbars』

[
  'bold',
  'underline',
  'italic',
  '-',
  'strikeThrough',
  'title',
  'sub',
  'sup',
  'quote',
  'unorderedList',
  'orderedList',
  'task', // ^2.4.0
  '-',
  'codeRow',
  'code',
  'link',
  'image',
  'table',
  'mermaid',
  'katex',
  '-',
  'revoke',
  'next',
  'save',
  '=',
  'pageFullscreen',
  'fullscreen',
  'preview',
  'htmlPreview',
  'catalog',
  'github'
];

You can sort the toolbar as you like, split tools by '-', the left and right toolbars are divided by '='!

『StaticTextDefaultValue』

Expand language, you need to replace all the content here:

export interface ToolbarTips {
  bold?: string;
  underline?: string;
  italic?: string;
  strikeThrough?: string;
  title?: string;
  sub?: string;
  sup?: string;
  quote?: string;
  unorderedList?: string;
  orderedList?: string;
  task?: string; // ^2.4.0
  codeRow?: string;
  code?: string;
  link?: string;
  image?: string;
  table?: string;
  mermaid?: string;
  katex?: string;
  revoke?: string;
  next?: string;
  save?: string;
  prettier?: string;
  pageFullscreen?: string;
  fullscreen?: string;
  catalog?: string;
  preview?: string;
  htmlPreview?: string;
  github?: string;
  '-'?: string;
  '='?: string;
}

export interface StaticTextDefaultValue {
  // Toolbar hover tips(html title)
  toolbarTips?: ToolbarTips;
  // h1-h6 dropdown menu item
  titleItem?: {
    h1?: string;
    h2?: string;
    h3?: string;
    h4?: string;
    h5?: string;
    h6?: string;
  };
  // v1.6.0
  imgTitleItem?: {
    link: string;
    upload: string;
    clip2upload: string;
  };
  // The modal tips of add link or upload picture
  linkModalTips?: {
    linkTitle?: string;
    imageTitle?: string;
    descLabel?: string;
    descLabelPlaceHolder?: string;
    urlLabel?: string;
    urlLabelPlaceHolder?: string;
    buttonOK?: string;
  };
  // The modal tips of clip the picture, v1.2.0
  clipModalTips?: {
    title?: string;
    buttonUpload?: string;
  };
  // Copy code tips, v1.1.4
  copyCode?: {
    text?: string;
    successTips?: string;
    failTips?: string;
  };
  // 1.8.0
  mermaid?: {
    flow?: string;
    sequence?: string;
    gantt?: string;
    class?: string;
    state?: string;
    pie?: string;
    relationship?: string;
    journey?: string;
  };
  // 1.9.0
  katex?: {
    // formula inline
    inline: string;
    // formula block
    block: string;
  };
  footer?: {
    markdownTotal: string;
    scrollAuto: string;
  };
}

🪢 Event

name	parameter	description
onChange	value: string	Content changed event(bind to oninput of textarea)
onSave	value: string, html: Promise<string>	Save content event, ctrl+s and click button will be triggered also
onUploadImg	files: Array<File>, callback: (urls: Array<string>) => void	Upload picture event, when picture is uploading the modal will not close, please provide right urls to the callback function
onHtmlChanged	html: string	Compile markdown successful event, you can use it to get the html code
onGetCatalog	list: Array<HeadList>	Get catalog of article
onError	error: { name: string; message: string }	Catch run-time error, Cropper, fullscreen and prettier are used when they are not loaded

🤱🏼 Expose

After 2.5.0, Editor exposes several methods on the instance, used to get or change the internal status of the editor.

import React, { useState, useEffect, useRef } from 'react';
import MdEditor, { ExposeParam } from 'md-editor-rt';
import 'md-editor-rt/lib/style.css';

export default () => {
  const [text, setText] = useState('#Hello Editor');

  const editorRef = useRef<ExposeParam>();

  useEffect(() => {
    editorRef.current?.on('catalog', console.log);
  }, []);

  return <MdEditor ref={editorRef} modelValue={text} onChange={setText} />;
};

Switched to the opposite status, if toggle without input parameter.

👂🏼 on

Get the internal state of the editor, including pageFullscreen, fullscreen, preview, htmlPreview, catalog, etc.

• pageFullscreen

  editorRef.current?.on('pageFullscreen', (status) => console.log(status));
  

• fullscreen

  editorRef.current?.on('fullscreen', (status) => console.log(status));
  

• preview

  editorRef.current?.on('preview', (status) => console.log(status));
  

• htmlPreview

  editorRef.current?.on('htmlPreview', (status) => console.log(status));
  

• catalog

  editorRef.current?.on('catalog', (status) => console.log(status));
  

💻 togglePageFullscreen

Toggle status of fullscreen within the page.

editorRef.current?.togglePageFullscreen(true);

🖥 toggleFullscreen

Toggle status of fullscreen widthin browser.

editorRef.current?.toggleFullscreen(true);

📖 togglePreview

Toggle status of preview.

editorRef.current?.togglePreview(true);

📼 toggleHtmlPreview

Toggle status of htmlPreview.

editorRef.current?.toggleHtmlPreview(true);

🧬 toggleCatalog

Toggle status of catalog.

editorRef.current?.toggleCatalog(true);

💾 triggerSave

editorRef.current?.triggerSave();

💉 insert

Manually insert content into textarea.

/**
 * @params selectedText
 */
editorRef.current?.insert((selectedText) => {
  /**
   * @return targetValue    Content to be inserted
   * @return select         Automatically select content
   * @return deviationStart Start position of the selected content
   * @return deviationEnd   End position of the selected content
   */
  return {
    targetValue: `${selectedText}`,
    select: true,
    deviationStart: 0,
    deviationEnd: 0
  };
});

For more examples, refer to source code of extension component

🎯 focus

focus the textarea.

editorRef.current?.focus();

💴 Config Editor

Use MdEditor.config(option: ConfigOption) to reconfigure renderer.

• markedRenderer: (renderer: RewriteRenderer) => RewriteRenderer

  Open target page in a new browser window:

  MdEditor.config({
    markedRenderer(renderer) {
      renderer.link = (href, title, text) => {
        return `<a href="${href}" title="${title}" target="_blank">${text}</a>`;
      };
  
      return renderer;
    }
  });
  

  Reference: https://marked.js.org/using_pro#renderer, RewriteRenderer extends Renderer and rewrites heading, now provides index as the fifth parameter.

• markedExtensions: Array<marked.TokenizerExtension & marked.RendererExtension>

  import MdEditor from 'md-editor-rt';
  
  MdEditor.config({
    markedExtensions: [your extension]
  });
  

  Reference: https://marked.js.org/using_pro#extensions

• markedOptions: marked.MarkedOptions

  Do not render <br> on a single line break:

  import MdEditor from 'md-editor-rt';
  
  MdEditor.config({
    markedOptions: { breaks: false }
  });
  

  Reference: https://marked.js.org/using_advanced#options

• editorConfig: Add more languages, reset mermaid template or delay rendering time:

  import MdEditor from 'md-editor-rt';
  
  MdEditor.config({
    editorConfig: {
      languageUserDefined: { lang: StaticTextDefaultValue },
      mermaidTemplate: {
        flow: `flow tempalte`,
        ...more
      },
      // Default 500ms. It is set to 0ms when preview only and not set.
      renderDelay: 500
    }
  });
  

• editorExtensions: Config some dependency libraries, like highlight..

  import MdEditor from 'md-editor-rt';
  
  MdEditor.config({
    editorExtensions: { iconfont: 'https://xxx.cc' }
  });
  

  『EditorExtensions』

  import MdEditor from 'md-editor-rt';
  
  interface EditorExtensions {
    highlight?: {
      instance?: any;
      js?: string;
      css?: {
        [key: string]: {
          light: string;
          dark: string;
        };
      };
    };
    prettier?: {
      standaloneJs?: string;
      parserMarkdownJs?: string;
    };
    cropper?: {
      instance?: any;
      js?: string;
      css?: string;
    };
    iconfont?: string;
    screenfull?: {
      instance?: any;
      js?: string;
    };
    mermaid?: {
      instance?: any;
      js?: string;
    };
    katex?: {
      instance?: any;
      js?: string;
      css?: string;
    };
  }
  

🪡 Shortcut Key

key	function	description
TAB	insert space	Insert space, the length eq tabWidth, default: 2, support multiline
SHIFT + TAB	delete space, setting is the same as Tab
CTRL + C	copy	When selected, copy the selected content. When not selected, copy the content of the current line
CTRL + X	shear	When selected, cut the selected content. When not selected, cut the current line
CTRL + D	delete	When selected, delete the selected content. When not selected, delete the current line
CTRL + S	save	Trigger onSave event
CTRL + B	bold text	**bold**
CTRL + U	underline	<u>underline</u>
CTRL + I	italic	*italic*
CTRL + 1-6	h1-h6	# title
CTRL + ↑	superscript	<sup>superscript</sup>
CTRL + ↓	subscript	<sub>subscript</sub>
CTRL + Q	quote	> quote
CTRL + O	ordered list	1. ordered list
CTRL + L	link	[link](https://github.com/imzbf/md-editor-rt)
CTRL + Z	withdraw	Withdraw history in editor, not the function of system
CTRL + SHIFT + S	line-through	~line-through~
CTRL + SHIFT + U	unordered list	- unordered list
CTRL + SHIFT + C	code block
CTRL + SHIFT + I	picture	
CTRL + SHIFT + Z	forward	Forward history in editor, not the function of system
CTRL + SHIFT + F	Beautify
CTRL + ALT + C	code row
CTRL + SHIFT + ALT + T	table	|table|

🪤 Components

They are used as attributes of the editor component, eg: Editor.DropdownToolbar. For more examples, refer to document.

🐣 NormalToolbar

Editor.NormalToolbar

• props

  • title: string, not necessary, title of toolbar.

• events

  • onClick: (e: MouseEvent) => void, necessary.

• slots

  • trigger: string | JSX.Element, necessary, it is usually an icon, which is displayed on the toolbar.

🐼 DropdownToolbar

Editor.DropdownToolbar

• props

  • title: string, not necessary, title of toolbar.
  • visible: boolean, necessary.

• events

  • onChange: (visible: boolean) => void, necessary.

• slots

  • trigger: string | JSX.Element, necessary, it is usually an icon, which is displayed on the toolbar.
  • overlay: string | JSX.Element, necessary, content of dropdown box.

🦉 ModalToolbar

Editor.ModalToolbar

• props

  • title: string, not necessary, title of toolbar.
  • modalTitle: string, not necessary, title of the Modal.
  • visible: boolean, necessary, visibility of Modal.
  • width: string, not necessary, width of Modal, default auto.
  • height: string, same as width.
  • showAdjust: boolean, not necessary, visibility of fullscreen button.
  • isFullscreen: boolean, necessary when showAdjust = true, status of fullscreen.

• events

  • onClick: () => void, necessary.
  • onClose: () => void, necessary, close event.
  • onAdjust: (val: boolean) => void, fullscreen button click event.

• slots

  • trigger: string | JSX.Element, necessary, it is usually an icon, which is displayed on the toolbar.
  • overlay: string | JSX.Element, necessary, content of Modal.

🐻 MdCatalog

Editor.MdCatalog

• props

  • editorId: string, necessary, same as editor's editorId, used to register listening events.
  • class: string, not necessary.
  • markedHeadingId: MarkedHeadingId, not necessary, same as editor.
  • scrollElement: string | HTMLElement, not necessary, it is an element selector when its type is string. When previewOnly eq true, it is usually set to document.documentElement.
  • theme: 'light' | 'dark', not necessary, provide it when you want to change theme online, it is the same as Editor theme.
  • offsetTop: number, not necessary, highlight current item of catalogs when title is offsetTop pixels from the top, defalut 20.
  • scrollElementOffsetTop: number, not necessary, offsetTop of the scroll container，defalut 0.

• events

  • onClick: (e: MouseEvent, t: TocItem) => void, not necessary.

🗂 Examples

🥹 Upload Picture

Tips: When you paste and upload GIF, it will upload a static picture. So you should upload it by file system!

import React, { useState } from 'react';
import MdEditor from 'md-editor-rt';
import 'md-editor-rt/lib/style.css';

export default () => {
  const [text, setText] = useState('# Hello Editor');

  const onUploadImg = async (files, callback) => {
    const res = await Promise.all(
      files.map((file) => {
        return new Promise((rev, rej) => {
          const form = new FormData();
          form.append('file', file);

          axios
            .post('/api/img/upload', form, {
              headers: {
                'Content-Type': 'multipart/form-data'
              }
            })
            .then((res) => rev(res))
            .catch((error) => rej(error));
        });
      })
    );

    callback(res.map((item) => item.data.url));
  };

  return <MdEditor modelValue={text} onChange={setText} onUploadImg={onUploadImg} />;
};

🧙‍♂️ Change Styles

.css-vars(@isDark) {
  --md-color: if(@isDark, #999, #222);
  --md-hover-color: if(@isDark, #bbb, #000);
  --md-bk-color: if(@isDark, #000, #fff);
  --md-bk-color-outstand: if(@isDark, #111, #f6f6f6);
  --md-bk-hover-color: if(@isDark, #1b1a1a, #f5f7fa);
  --md-border-color: if(@isDark, #2d2d2d, #e6e6e6);
  --md-border-hover-color: if(@isDark, #636262, #b9b9b9);
  --md-border-active-color: if(@isDark, #777, #999);
  --md-modal-mask: #00000073;
  --md-scrollbar-bg-color: if(@isDark, #0f0f0f, #e2e2e2);
  --md-scrollbar-thumb-color: if(@isDark, #2d2d2d, #0000004d);
  --md-scrollbar-thumb-hover-color: if(@isDark, #3a3a3a, #00000059);
  --md-scrollbar-thumb-avtive-color: if(@isDark, #3a3a3a, #00000061);
}

.md-editor {
  .css-vars(false);
}

.md-editor-dark {
  .css-vars(true);
}

Change background color in dark mode:

.md-editor-dark {
  --md-bk-color: #333 !important;
}