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/*
* SonarQube
* Copyright (C) 2009-2022 SonarSource SA
* mailto:info 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 { debounce } from 'lodash';
import * as React from 'react';
interface Props {
className?: string;
children: (position: { top: number; left: number }) => React.ReactElement<any>;
}
export default class ScreenPositionHelper extends React.PureComponent<Props> {
container?: HTMLDivElement;
debouncedOnResize: () => void;
constructor(props: Props) {
super(props);
this.debouncedOnResize = debounce(() => this.forceUpdate(), 250);
}
componentDidMount() {
this.forceUpdate();
window.addEventListener('resize', this.debouncedOnResize);
}
componentWillUnmount() {
window.removeEventListener('resize', this.debouncedOnResize);
}
getPosition = () => {
const containerPos = this.container && this.container.getBoundingClientRect();
if (!containerPos) {
return { top: 0, left: 0 };
}
return {
top: window.pageYOffset + containerPos.top,
left: window.pageXOffset + containerPos.left,
};
};
render() {
return (
<div
className={this.props.className}
ref={(container) => (this.container = container as HTMLDivElement)}
>
{this.props.children(this.getPosition())}
</div>
);
}
}
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