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// @flow
import * as React from 'react';
type Props = {
children: React$Node,
style?: Object,
onOutsideClick: Function,
};
class OutsideAlerter extends React.Component<Props> {
wrapperRef: React$Node;
// iOS bug, see: https://stackoverflow.com/questions/10165141/jquery-on-and-delegate-doesnt-work-on-ipad
componentDidMount() {
// $FlowFixMe
document
.getElementById('root')
.addEventListener('mousedown', this.handleClickOutside);
}
componentWillUnmount() {
// $FlowFixMe
document
.getElementById('root')
.removeEventListener('mousedown', this.handleClickOutside);
}
setWrapperRef = (node: React$Node) => {
this.wrapperRef = node;
};
/**
* Alert if clicked on outside of element
*/
handleClickOutside = (event: any) => {
// $FlowFixMe
if (this.wrapperRef && !this.wrapperRef.contains(event.target)) {
this.props.onOutsideClick();
}
};
render() {
const { style = {}, children } = this.props;
return (
// $FlowFixMe
<div style={style} ref={this.setWrapperRef}>
{children}
</div>
);
}
}
export default OutsideAlerter;
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