🎄 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.
• On-demand Import(>=4.0.0).

📦 Install

yarn add md-editor-rt

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

✍🏻 Display Editor

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} />;
};

^4.0.0, internal components can be imported on-demand.

If there are multiple editors on the page, please set different editorId for each editor!

📖 Preview Only

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

const scrollElement = document.documentElement;

export default () => {
  const [text] = useState('# Hello Editor');
  const [id] = useState('preview-only');

  return (
    <>
      <MdEditor editorId={id} modelValue={text} />
      <MdCatalog editorId={id} scrollElement={scrollElement} />
    </>
  );
};

🗺 Preview

Default theme	Dark theme	Preview only

Inputing prompt and mark, emoji extensions

🎁 Apis

🔖 MdPreivew Props

🔩 MdEditor Props

Except for the same as MdPreview:

[
  '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 '='!

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;
  };
}

🧵 MdPreview Events

🪢 MdEditor Events

Except for the same as MdPreview:

🤱🏼 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 on textarea.

import type { FocusOption } from 'md-editor-rt';

const option: FocusOption | undefined = 'start';

// Cursor position when focusing on textarea, default: position when it last lost focus
editorRef.current?.focus(option);

💴 Config Editor

Use config(option: ConfigOption) to reconfigure markdown-it and so on.

• codeMirrorExtensions: Customize new extensions based on theme and default extensions f codeMirror.

  Example: Editor does not render the line number of textarea by default, this extension needs to be manually added

  import { config } from 'md-editor-rt';
  import { lineNumbers } from '@codemirror/view';
  
  config({
    codeMirrorExtensions(_theme, extensions) {
      return [...extensions, lineNumbers()];
    }
  });

• markdownItConfig: Customize extensions, attributes of markdown-it, etc.

  Example: Use markdown-it-anchor to render a hyperlink symbol to the right of the title

  import { config } from 'md-editor-rt';
  import ancher from 'markdown-it-anchor';
  
  config({
    markdownItConfig(mdit) {
      mdit.use(ancher, {
        permalink: true
      });
    }
  });

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

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

  『EditorExtensions』

  export 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

Pay attention: shortcut keys are only available when the textarea has received focus!

🪤 Internal Components

import { NormalToolbar } from 'md-editor-rt';

For more examples, refer to document.

🐣 NormalToolbar

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

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

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

MdCatalog

• props

  • editorId: string, necessary, same as editor's editorId, used to register listening events.
  • class: string, not necessary.
  • mdHeadingId: MdHeadingId, 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-active-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;
}