` for you, to be used as the editing area for Quill. If you prefer, you can specify your own element for ReactQuill to use. Note that `

`s are not supported by Quill at this time.

Note: Custom editing areas lose focus when using React 16 as a peer dep at this time ([bug](https://github.com/zenoamaro/react-quill/issues/309)).

```jsx
class MyComponent extends React.Component {

render() {
    return (
      <ReactQuill>
        <div className="my-editing-area"/>
      </ReactQuill>
    );
  }

});
```

</details>

### Mixin

The module exports a mixin which can be used to create custom editor components. (Note that mixins will be deprecated in a future version of React).

<details>
<summary>Example Code</summary>

The ReactQuill default component is built using the mixin. See [component.js](src/component.js) for source.

```jsx
import {Mixin} from 'react-quill'

var MyComponent = React.createClass({
  mixins: [ ReactQuill.Mixin ],

componentDidMount: function() {
    var editor = this.createEditor(
      this.getEditingArea(),
      this.getEditorConfig()
    );
    this.setState({ editor:editor });
  },

componentWillReceiveProps: function(nextProps) {
    if ('value' in nextProps && nextProps.value !== this.props.value) {
      this.setEditorContents(this.state.editor, nextProps.value);
    }
  },

});
```

</details>

## Upgrading to React-Quill v1.0.0

In most cases, ReactQuill will raise useful warnings to help you perform any necessary migration steps.

Please note that many [migration steps to Quill v1.0](http://quilljs.com/guides/upgrading-to-1-0/) may also apply.

<details>
<summary>Expand Upgrade Guide</summary>

### The toolbar module

With v1.0.0, Quill adopted a new [toolbar configuration format](https://quilljs.com/docs/modules/toolbar/), to which React Quill will delegates all toolbar functionality, and which is now the preferred way to customize the toolbar.

Previously, toolbar properties could be set by passing a `toolbar` prop to React Quill. Pass the same options as `modules.toolbar` instead.

```diff
+ modules: {
    toolbar: [
       ...
    ],
+ },

<ReactQuill
-   toolbar={this.toolbar}
+   modules={this.modules}
  />
```

If you used to provide your own HTML toolbar component, you can still do the same:

```diff
+ modules: {
+   toolbar: '#my-toolbar-component',
+ },

<ReactQuill
-   toolbar="#my-toolbar-component"
+   modules={this.modules}
  />
```

Note that it is not possible to pass a toolbar component as a child to ReactQuill anymore.

Previously, React Quill would create a custom HTML toolbar for you if you passed a configuration object as the `toolbar` prop. This will not happen anymore. You can still create a `ReactQuill.Toolbar` explicitly:

```diff
+ modules: {
+   toolbar: '#my-quill-toolbar',
+ },

+ <ReactQuill.Toolbar
+   id='my-quill-toolbar'
+   items={this.oldStyleToolbarItems}
+ />

<ReactQuill
-   toolbar={this.oldStyleToolbarItems}
+   modules={this.modules}
  />
```

However, consider switching to the new Quill format instead, or provide your own [toolbar component](#html-toolbar).

React Quill now follows the Quill toolbar format closely. See the [Quill toolbar documentation](https://quilljs.com/docs/modules/toolbar/) for a complete reference on all supported options.

</details>

### Custom editing areas and refs

Previously, to provide a custom element for Quill to mount on, it was necessary to pass a child identified by a specific `ref`: `editor`.

This is now unnecessary, so you can omit the `ref` entirely if you don't need it. In addition, any `ref` you keep won't be stolen from the owner component anymore.

Note, however, that React Quill will now ensure that the element is compatible with Quill. This means that passing a `<textarea>` now produces an error.

### Passing children to ReactQuill

Previously, it was possible to pass arbitrary components as children of React Quill. Their `ref` would identify them as either a custom toolbar or a custom editing area.

This is not possible anymore, and the only child you can pass now is an optional [custom Editing Area](#custom-editing-area) element.

### Adding custom formats with the `formats` property is deprecated

As of 1.0.0, [use Parchment to define new formats](https://github.com/quilljs/parchment). Use the [Quill export](#exports) from the module to register and extend formats:

```js
Quill.register('formats/CustomFormat', MyCustomFormat);
```

### The `styles` property

Previously, it was allowed to inject CSS styles by providing an object to the `styles` property. This option has been removed from Quill 1.0, and support for it in React Quill has gone as well. If you need to inject styles, link an external stylesheet instead.

See the [Quill Release Notes](http://quilljs.com/guides/upgrading-to-1-0/#configuration).

### The `pollInterval` property

This property previously set the frequency with which Quill polled the DOM for changes. It does not have any effect anymore, and can safely be removed from the props.

</details>

## API reference

### Exports

```jsx
const ReactQuill = require('react-quill'); // CommonJS
const {Quill, Mixin, Toolbar} = ReactQuill;

import ReactQuill, { Quill, Mixin, Toolbar } from 'react-quill'; // ES6
```

`Mixin`
: Provides the bridge between React and Quill. `ReactQuill` implements this mixin; in the same way you can use it to build your own component, or replace it to implement a new core for the default component. _Note that mixins are deprecated in React and this export will be replaced by an HOC in the future._

`Toolbar`
: The component that renders the custom ReactQuill toolbar. The default collection of items and color swatches is available as `ReactQuill.Toolbar.defaultItems` and `ReactQuill.Toolbar.defaultColors` respectively. ⚠️ The Toolbar component is deprecated since v1.0.0. See [upgrading to React Quill v1.0.0](#upgrading-to-react-quill-v100).

`Quill`
: The `Quill` namespace on which you can call `registerModule` and such.

### Props

`id`
: ID to be applied to the DOM element.

`className`
: Classes to be applied to the DOM element.

`value`
: Value for the editor as a controlled component. Can be a string containing HTML, a [Quill Delta](https://quilljs.com/docs/delta/) instance, or a plain object representing a Delta.
  Note that due to limitations in Quill, this is actually a _semi-controlled_ mode, meaning that the edit is not prevented, but changing `value` will still replace the contents. 
  Also note that passing a Quill Delta here, and then an HTML string, or vice-versa, will always trigger a change, regardless of whether they represent the same document.
  ⚠️ Do not pass the `delta` object from the `onChange` event as `value`, as it will cause a loop. See [Using Deltas](#using-deltas) for details.

`defaultValue`
: Initial value for the editor as an uncontrolled component. Can be a string containing HTML, a [Quill Delta](https://quilljs.com/docs/delta/), or a plain object representing a Delta.

`readOnly`
: If true, the editor won't allow changing its contents. Wraps the Quill [`disable` API](https://quilljs.com/docs/api/#enable).

`placeholder`
: The default value for the empty editor. Note: The Quill API does not support changing this value dynamically. Use refs and data-attributes instead (see [#340](https://github.com/zenoamaro/react-quill/issues/340#issuecomment-376176878)).

`modules`
: An object specifying which modules are enabled, and their configuration. The editor toolbar is a commonly customized module. See the [modules section](http://quilljs.com/docs/modules/) over the Quill documentation for more information on what modules are available.

`formats`
: An array of formats to be enabled during editing. All implemented formats are enabled by default. See [Formats](http://quilljs.com/docs/formats/) for a list.
  Custom formats should not be included in the array as of version 1.0.0. Instead they should be created through [Parchment](https://github.com/quilljs/parchment) and registered with the module's [Quill export](#exports).

`style`
: An object with custom CSS rules to apply on the editor's container. Rules should be in React's "camelCased" naming style.

`theme`
: The name of the theme to apply to the editor. Defaults to `snow`, Quill's standard theme. Pass `null` to use the minimal core theme. See the [docs on themes](#theme) for more information on including the required stylesheets.

`tabIndex`
: The order in which the editor becomes focused, among other controls in the page, during keyboard navigation.

`bounds`
: Selector or DOM element used by Quill to constrain position of popups. Defaults to `document.body`.

`children`
: A single React element that will be used as the editing area for Quill in place of the default, which is a `<div>`. Note that you cannot use a `<textarea>`, as it is not a supported target. Also note that updating children is costly, as it will cause the Quill editor to be recreated. Set the `value` prop if you want to control the html contents of the editor.

`onChange(content, delta, source, editor)`
: Called back with the new contents of the editor after change. It will be passed the HTML contents of the editor, a delta object expressing the change, the source of the change, and finally a read-only proxy to [editor accessors](#the-unprivileged-editor) such as `getHTML()`.
  ⚠️ Do not use this `delta` object as `value`, as it will cause a loop. Use `editor.getContents()` instead. See [Using Deltas](#using-deltas) for details.

`onChangeSelection(range, source, editor)`
: Called back with the new selected range, or null when unfocused. It will be passed the selection range, the source of the change, and finally a read-only proxy to editor accessors such as `getBounds()`.

`onFocus(range, source, editor)`
: Called when the editor becomes focused. It will receive the new selection range.

`onBlur(previousRange, source, editor)`
: Called when the editor loses focus. It will receive the selection range it had right before losing focus.

`onKeyPress(event)`
: Called after a key has been pressed and released.
: Note that, like its native counterpart, this won't be called for special keys such as <kbd>shift</kbd> or <kbd>enter</kbd>. If you need those, hook onto `onKeyDown` or `onKeyUp`.

`onKeyDown(event)`
: Called after a key has been pressed, but before it is released.
: Note that, due to how Quill works, it's possible that you won't receive events for keys such as <kbd>enter</kbd>, <kbd>backspace</kbd> or <kbd>delete</kbd>. If that's the case, try hooking onto `onKeyUp` instead.

`onKeyUp(event)`
: Called after a key has been released.

### Methods

If you have [a ref](https://facebook.github.io/react/docs/more-about-refs.html) to a ReactQuill node, you will be able to invoke the following methods:

`focus()`
: Focuses the editor.

`blur()`
: Removes focus from the editor.

`getEditor()`
: Returns the Quill instance that backs the editor. While you can freely use this to access methods such as `getText()`, please avoid from imperatively manipulating the instance, to avoid getting ReactQuill and Quill out-of-sync. A much-safer [unprivileged editor](#the-unprivileged-editor) is available as replacement.

<details>
<summary>Example</summary>

[View this example on Codepen](https://codepen.io/alexkrolick/pen/YNmGar?editors=0011)

```jsx
class Editor extends React.Component {
  constructor(props) {
    super(props)
    this.quillRef = null;      // Quill instance
    this.reactQuillRef = null; // ReactQuill component
  }
  
  componentDidMount() {
    this.attachQuillRefs()
  }
  
  componentDidUpdate() {
    this.attachQuillRefs()
  }
  
  attachQuillRefs = () => {
    if (typeof this.reactQuillRef.getEditor !== 'function') return;
    this.quillRef = this.reactQuillRef.getEditor();
  }
  
  insertText = () => {
    var range = this.quillRef.getSelection();
    let position = range ? range.index : 0;
    this.quillRef.insertText(position, 'Hello, World! ')
  }
  
  render() {
    return (
      <div>
        <ReactQuill 
          ref={(el) => { this.reactQuillRef = el }}
          theme={'snow'} />
        <button onClick={this.insertText}>Insert Text</button>
      </div>
    )
  }
}
```

</details>

`makeUnprivilegedEditor`
: Creates an [unprivileged editor](#unprivileged-editor). Pass this method a reference to the Quill instance from `getEditor`. Normally you do not need to use this method since the editor exposed to event handlers is already unprivileged.

<details>
<summary>Example</summary>

```jsx
const editor = this.reactQuillRef.getEditor();
const unprivilegedEditor = this.reactQuillRef.makeUnprivilegedEditor(editor);
// You may now use the unprivilegedEditor proxy methods
unprivilegedEditor.getText();
```

</details>

### The unprivileged editor

During events, ReactQuill will make a restricted subset of the Quill API available as the `editor` argument. This prevents access to destructive methods, which might case ReactQuill to get out-of-sync with the component. It provides the following methods, which are mostly proxies of existing [Quill methods](https://quilljs.com/docs/api/):

`getLength()`
: Returns the length of the editor contents, in characters, not including any HTML tag.

`getText()`
: Returns the string contents of the editor, not including any HTML tag.

`getHTML()`
: Returns the full HTML contents of the editor.

`getContents()`
: Returns a [Quill Delta](https://quilljs.com/docs/delta/) of the complete document.

`getSelection()`
: Returns the current selection range, or `null` if the editor is unfocused.

`getBounds()`
: Returns the pixel position, relative to the editor container, and dimensions, of a selection, at a given location.

## Building and testing

You can run the automated test suite:

```sh
npm test
```

And build a minificated version of the source:

```sh
npm run build
```

More tasks are available on the [Makefile](Makefile):

lint: lints the source
    spec: runs the test specs
    coverage: runs the code coverage test
    test: lint, spec and coverage threshold test
    build: builds the minified version

Note that `dist` is ignored in the git repository as of version 1.0.0. If you need to use the built files without downloading the package from NPM, you can run the build tasks yourself or use a CDN like [unpkg](https://unpkg.com/react-quill@1.0.0-beta-1/dist/react-quill.min.js).

### Bundling with Webpack

Quill ships only a pre-built javascript file, so Webpack will complain after building a bundle:

```
Error: ./~/react-quill/~/quill/dist/quill.js
Critical dependencies:
6:478-485 This seems to be a pre-built javascript file. Though this is possible, it's not recommended. Try to require the original source to get better results.
@ ./~/react-quill/~/quill/dist/quill.js 6:478-485
```

The warning is harmless, but if you want to silence it you can avoid parsing Quill by adding this to your Webpack configuration:

```js
module: {
  // Shut off warnings about using pre-built javascript files
  // as Quill.js unfortunately ships one as its `main`.
  noParse: /node_modules\/quill\/dist/
}
```

See [#7](https://github.com/zenoamaro/react-quill/issues/7) for more details.

## Browser support

Please check the browser support table for the upstream [Quill](https://github.com/quilljs/quill) dependency. The React part of the codebase is ES5-compatible.

## Changelog

[Full changelog](CHANGELOG.md)

## Contributors

React Quill would not be where it is today without the contributions of many people, which we are incredibly grateful for:
- @zenoamaro (maintainer)
- @alexkrolick (maintainer)
- @clemmy
- @asiniy
- @webcarrot
- @druti
- @e-jigsaw
- @zhang-z
- @Sajam
- @0bird512
- @jacktrades
- @1000hz
- @kkerr1
- @csk157
- @Janekk
- @AndyTheGiant
- @chrismcv
- @wouterh
- @tdg5
- @jrmmnr
- @l3kn
- @rpellerin
- @sandbochs
- @wouterh
- @MattKunze

## Roadmap

- [x] React 0.14 support
- [x] Quill v1.0.0+ support
- [x] Tests!
- [x] Compatibility with React 16
- [ ] Additional APIs for working with Quill

## License

The MIT License (MIT)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.