React-portal-stateless

This Project is a fork of React Portal that implement Stateless version of it.

Struggling with modals, lightboxes or loading bars in React? React-portal creates a new top-level React tree and injects its child into it. That's necessary for proper styling (especially positioning).

react-portal is being rewritten, you are reading v3.x.x documentation

Features

• transports its child into a new React component and appends it to the document.body (creates a new independent React tree)
• can be opened by the prop isOpen
• doesn't leave any mess in DOM after closing
• provides its child with this.props.closePortal callback
• provides close on ESC and close on outside mouse click out of the box
• supports absolute positioned components (great for tooltips)
• no dependencies

Demo

Try https://miksu.cz/react-portal or

git clone https://github.com/tajo/react-portal
cd react-portal
npm install
npm run build:examples
open examples/index.html

Installation

npm install react react-dom react-portal --save

Usage

import React from 'react';
import ReactDOM from 'react-dom';
import Portal from 'react-portal';

export default class App extends React.Component {
  constructor(props) {
    super(props);

    this.state = {
      isPortalOpen: true
    };
  }

  onClose() {
    this.setState({
      isPortalOpen: false
    });
  }

  onOpen() {
    this.setState({
      isPortalOpen: true
    });
  }

  render() {
    return (
      <div>
        <button onClick={() => this.onOpen}>Open Portal</button>
        <Portal isOpen={this.state.isPortalOpen} closeOnEsc closeOnOutsideClick onClose={() => this.onClose}>
          <PseudoModal>
            <h2>Pseudo Modal</h2>
            <p>This react component is appended to the document body.</p>
          </PseudoModal>
        </Portal>
      </div>
    );
  }

}

export class PseudoModal extends React.Component {

  render() {
    return (
      <div>
        {this.props.children}
        <p><button onClick={this.props.closePortal}>Close this</button></p>
      </div>
    );
  }

}

ReactDOM.render(<App />, document.getElementById('react-body'));

Documentation - props

Always required

children : ReactElement

The portal expects one child (<Portal><Child ... /></Portal>) that will be ported.

Optional

isOpen : bool

If true, the portal is open. If false, the portal is closed. It's up to you to take care of the closing (aka taking care of the state). Don't use this prop if you want to make your life easier. Use openByClickOn instead!

closeOnEsc: bool

If true, the portal can be closed by the key ESC.

closeOnOutsideClick: bool

If true, the portal can be closed by the outside mouse click.

onClose: func

This callback is called when the portal closes and after beforeClose.

onUpdate: func

This callback is called when the portal is (re)rendered.

Tips & Tricks

• Does your modal have a fullscreen overlay and the closeOnOutsideClick doesn't work? There is a simple solution.
• Does your inner inner component <LevelTwo />

<Portal>
  <LevelOne>
    <LevelTwo />
  </LevelOne>
</Portal>

also need an access to this.props.closePortal()? You can't just use {this.props.children} in render method of <LevelOne> component. You have to clone it instead:

{React.cloneElement(
  this.props.children,
  {closePortal: this.props.closePortal}
)}

Open modal programmatically

Sometimes you need to open your portal (e.g. modal) automatically. There is no button to click on. No problem, because the portal has the isOpen prop, so you can just set it to true or false.

Contribution

Please, create issues and pull requests.

git clone https://github.com/tajo/react-portal
cd react-portal
npm install
npm start
open http://localhost:3000

Don't forget to run this before every commit:

npm test

Credits (Forked from)

Inspired by the talk React.js Conf 2015 - Hype!, Ryan Florence

Vojtech Miksu 2015, miksu.cz, @vmiksu

Credits

Victor Arêas 2017