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| import * as React from 'react'; | |
| import ReactDOM from 'react-dom'; | |
| /** | |
| * This component detaches its contents and re-attaches them to document.body (using ReactDOM.createPortal). | |
| * Use it when you need to circumvent DOM z-stacking (for dialogs, popovers, etc.). | |
| */ | |
| class Portal extends React.Component { | |
| targetElement = null; | |
| render() { | |
| if (this.targetElement === null) { | |
| this.targetElement = document.body.appendChild(document.createElement('div')); | |
| } | |
| const { children, ...rest } = this.props; | |
| return ReactDOM.createPortal( | |
| <div {...rest}> | |
| {children} | |
| </div>, | |
| this.targetElement | |
| ); | |
| } | |
| componentWillUnmount() { | |
| if (this.targetElement !== null) { | |
| document.body.removeChild(this.targetElement); | |
| this.targetElement = null; | |
| } | |
| } | |
| } | |
| export default Portal; |
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