This is a React mixin that you can add to your React components if you want to have them listen for clicks that occur somewhere in the document, outside of the element itself (for instance, if you need to hide a menu when people click anywhere else on your page).
Note that this mixin relies on the .classList
property, which is supported by all modern browsers, but not by no longer supported browsers like IE8 or even older. For setups that need to support deprecated browsers, using something like the MDN classlist-polyfill will be necessary.
There are two ways to install this mixin, depending on your development process.
If you have Node.js needs, you can install this mixin via npm
, using:
npm install react-onclickoutside --save
(or --save-dev
depending on your needs). You then use it in your components as:
var Component = React.createClass({
mixins: [
require('react-onclickoutside')
],
handleClickOutside: function(evt) {
// ...handling code goes here...
}
});
If you have plain-old-browser needs and for some reason are unable to use the modern browserify/webpack approach to building your JS payloads, you can install this mixin via bower
, using:
bower install react-onclickoutside
and then include it as script via:
<script src="bower_components/react-onclickoutside/index.js"></script>
Then use it as:
var Component = React.createClass({
mixins: [
OnClickOutside
],
handleClickOutside: function(evt) {
// ...handling code goes here...
}
});
When using this mixin, a component has two functions that can be used to explicitly listen for, or do nothing with, outside clicks
enableOnClickOutside()
- Enables outside click listening by setting up the event listening bindings.disableOnClickOutside()
- Disables outside click listening by explicitly removing the event listening bindings.
In addition, you can create a component that uses this mixin such that it has the code set up and ready to go, but not listening for outside click events until you explicitly issue its enableOnClickOutside()
, by passing in a properly called disableOnClickOutside
:
var Component = React.createClass({
mixins: [ ... ],
handleClickOutside: function(evt) {
// ...
}
});
var Container = React.createClass({
render: function(evt) {
return <Component disableOnClickOutside={true} />
}
});
If you want the mixin to ignore certain elements, then add the class ignore-react-onclickoutside
to that element and the callback won't be invoked when the click happens inside elements with that class.
Since mixins can't be used with ES6/2015 class React components a Higher-Order Component (HOC) and ES7 decorator are bundled with the mixin:
import listensToClickOutside from 'react-onclickoutside/decorator';
class Component extends React.Component {
handleClickOutside = (event) => {
// ...
}
}
export default listensToClickOutside(Component);
// OR
import listensToClickOutside from 'react-onclickoutside/decorator';
@listensToClickOutside()
class Component extends React.Component {
handleClickOutside = (event) => {
// ...
}
}
export default Component;
One difference when using the HOC/decorator compared to the mixin is that the enableOnClickOutside()
and disableOnClickOutside()
methods are not available as class methods, but rather on the props
;
so instead of this.enableOnClickOutside()
you would call this.props.enableOnClickOutside()
.
In every other respect the the mixin and HOC/decorator provides the same functionality.
For bugs and enhancements hit up https://github.com/Pomax/react-onclickoutside/issues
If you still use React 0.13 or 0.12, any version up to and including 3.* will work. Any version v4.* or above will not work due to relying on modules not introduced until React 0.14.
If you use React 0.14 or above, use v4.*, as that specifically uses react-DOM
for the necessary DOM event bindings.