JarCastingReact SimpleMDE (EasyMDE) Markdown Editor
React component wrapper for EasyMDE (the most fresh SimpleMDE fork).
Only two dependencies, React (peer) and EasyMDE (explicit).
New in v4
- Now uses EasyMDE (the most fresh SimpleMDE fork) instead of
simplemdeitself. Possible breaking changes, so I bumped version to v4. - One obvious breaking change. Is how CSS is have to be imported. It used to be
simplemde/dist/simplemde.min.cssnow it will beeasymde/dist/easymde.min.css
New in v3
- The
initialValueprop has been removed and replaced with avalueprop, allowing direct changes to the value to be made after the component mounts. - v3.6.8 if rendering server-side, you can set static ids to avoid errors in rendering synchronization.
- v3.6.17 TypeScript typings added.
- v3.6.19 All props will be passed to the wrapper now (except a id, onChange and few others that are ignored)
- v3.6.21 React 17 support (UNSAFE methods are no longer used)
New in v2
Version 1.0 did not have SimpleMDE options configured well, this readme reflects the changes made to better include options. This is still a very new project. Testing, feedback and PRs are welcome and appreciated.
Install
npm install --save react-simplemde-editor
Demo
https://react-simplemde-edtior.netlify.com/
or view it locally:
git clone https://github.com/RIP21/react-simplemde-editor.git
cd react-simplemde-editor
yarn install
yarn demo
open browser with localhost:3000
Usage
View the demo code for a full example.
Not required, but useless without it, the onChange callback is the only option you need to set.
import React from "react";
import SimpleMDE from "react-simplemde-editor";
import "easymde/dist/easymde.min.css";
<SimpleMDE onChange={this.handleChange} />;
The data from SimpleMDE is passed to the handleChange function and you do not need to reference the event.
handleChange = value => {
this.setState({ mdeValue: value });
};
Options
Set additional SimpleMDE options with an options prop.
Note - while SimpleMDE options has an initialValue option, this component only takes a value prop which is set as the initialValue on first render.
Note - if you don't specify a custom id it will automatically generate an id for you.
import React from "react";
import SimpleMDE from "react-simplemde-editor";
import "easymde/dist/easymde.min.css";
<SimpleMDE
id="your-custom-id"
label="Your label"
onChange={this.handleChange}
value={this.state.textValue}
options={{
autofocus: true,
spellChecker: false
// etc.
}}
/>;
You can include key maps using the extraKeys prop. Read more at https://codemirror.net/doc/manual.html#option_extraKeys
extraKeys = {
Up: function(cm) {
cm.replaceSelection(" surprise. ");
},
Down: function(cm) {
cm.replaceSelection(" surprise again! ");
}
};
<SimpleMDE
value={this.state.textValue}
onChange={this.handleChange}
extraKeys={extraKeys}
/>;
Custom preview rendering example
import ReactDOMServer from "react-dom/server";
<SimpleMDE
value={this.state.text}
onChange={this.setText}
options={{
previewRender(text) {
return ReactDOMServer.renderToString(
<ReactMarkdown
source={text}
renderers={{
CodeBlock: CodeRenderer,
Code: CodeRenderer
}}
/>
);
}
}}
/>;
Additional listeners for events of CodeMirror
See full list of events: https://codemirror.net/doc/manual.html#events
<SimpleMDE
value={this.state.text}
onChange={this.handleChange}
events={{
'blur': (e) => {},
'focus': (e) => {},
//... Add any codeMirror events
}}
/>
Autosaving example
import React, { Component } from "react";
import SimpleMDEReact from "react-simplemde-editor";
class Autosaving extends Component {
defaultProps = {
delay: 1000,
value: ""
};
state = {
value: localStorage.getItem(`smde_${this.props.id}`) || this.props.value
};
render() {
const { options, delay, id, ...rest } = this.props;
return (
<SimpleMDEReact
{...rest}
id={id}
value={this.state.value}
options={{
autosave: {
enabled: true,
uniqueId: id,
delay
},
...options
}}
/>
);
}
}
Retrieve simplemde instance to be able to manipulate it.
<SimpleMDE
getMdeInstance= { this.getInstance } // <-- set callback prop
value={this.state.text}
onChange={this.handleChange}
}
/>
getInstance = instance => {
// You can now store and manipulate the simplemde instance.
instance.togglePreview();
};