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/*
* SonarQube
* Copyright (C) 2009-2017 SonarSource SA
* mailto:contact AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
import * as React from 'react';
interface RenderProps {
closeDropdown: () => void;
onToggleClick: (event: React.SyntheticEvent<HTMLElement>) => void;
open: boolean;
}
interface Props {
children: (renderProps: RenderProps) => JSX.Element;
onOpen?: () => void;
}
interface State {
open: boolean;
}
export default class Dropdown extends React.PureComponent<Props, State> {
toggleNode?: HTMLElement;
constructor(props: Props) {
super(props);
this.state = { open: false };
}
componentDidUpdate(_: Props, prevState: State) {
if (!prevState.open && this.state.open) {
this.addClickHandler();
if (this.props.onOpen) {
this.props.onOpen();
}
}
if (prevState.open && !this.state.open) {
this.removeClickHandler();
}
}
componentWillUnmount() {
this.removeClickHandler();
}
addClickHandler = () => {
window.addEventListener('click', this.handleWindowClick);
};
removeClickHandler = () => {
window.removeEventListener('click', this.handleWindowClick);
};
handleWindowClick = (event: MouseEvent) => {
if (!this.toggleNode || !this.toggleNode.contains(event.target as Node)) {
this.closeDropdown();
}
};
closeDropdown = () => this.setState({ open: false });
handleToggleClick = (event: React.SyntheticEvent<HTMLElement>) => {
this.toggleNode = event.currentTarget;
event.preventDefault();
event.currentTarget.blur();
this.setState(state => ({ open: !state.open }));
};
render() {
return this.props.children({
closeDropdown: this.closeDropdown,
onToggleClick: this.handleToggleClick,
open: this.state.open
});
}
}
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