react-click-outside
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A component wrapper that provides click outside detection.
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# React Click Outside
[](https://travis-ci.org/kentor/react-click-outside) [](https://www.npmjs.com/package/react-click-outside)
Enhance a React component with a Higher Order Component that provides click
outside detection.
**Note:** React 0.14 required for version >= 2.x. This assumes `react` and
`react-dom` is installed in your project. Continue using version 1.x for React
0.13 support.
**Note:** Use version >= 2.3.0 to get rid of `React.createClass`
warnings in React 15.5.
## Usage
Installation:
```
npm install react-click-outside
```
Some component that you wish to enhance with click outside detection:
```js
const createReactClass = require('create-react-class');
const enhanceWithClickOutside = require('react-click-outside');
const React = require('react');
const Dropdown = createReactClass({
getInitialState() {
return {
isOpened: false,
};
},
handleClickOutside() {
this.toggle();
},
toggle() {
this.setState({ isOpened: !this.state.isOpened });
},
render() {
...
},
});
module.exports = enhanceWithClickOutside(Dropdown);
```
**Note:** There will be no error thrown if `handleClickOutside` is not
implemented.
### `wrappedRef` prop
Use the `wrappedRef` prop to get access to the wrapped component instance. For
example:
```js
// Inside a component's render method
<Dropdown
wrappedRef={instance => { this.toggle = instance.toggle; }}
/>
// Now you can call toggle externally
this.toggle();
```
## Details
The `enhanceWithClickOutside` function wraps the provided component in another
component that registers a click handler on `document` for the event capturing
phase. Using the event capturing phase prevents elements with a click handler
that calls `stopPropagation` from cancelling the click event that would
eventually trigger the component's `handleClickOutside` function.
## Why not a mixin?
There are some mixins that provide click outside detection functionality, but
they prevent the component from implementing the `componentDidMount` and
`componentWillUnmount` life cycle hooks. I recommend not using a mixin for this
case.
## Limitations
- IE9+ due to the usage of the event capturing phase.
## Not working on iOS?
If the `handleClickOutside` handler is not firing on iOS, try adding the
`cursor: pointer` css style to the `<body>` element. There are many ways to
achieve this, here is just one example:
```js
if ('ontouchstart' in document.documentElement) {
document.body.style.cursor = 'pointer';
}
```
If your app already has a way for mobile detection (e.g. Modernizr), you may
want to use that instead.
See issue [#4][i] for a discussion.
## License
[MIT](LICENSE.txt)
[i]: https://github.com/kentor/react-click-outside/issues/4