react-useportal

usePortal

🌀 React hook for using Portals

Need to make dropdowns, lightboxes/modals/dialogs, global message notifications, or tooltips in React? React Portals provide a first-class way to render children into a DOM node that exists outside the DOM hierarchy of the parent component (react docs).

This hook is also isomorphic, meaning it works with SSR (server side rendering).

Features

• SSR (server side rendering) support
• TypeScript support
• 1 dependency (use-ssr)
• Built in state

Examples

• Modal Example - Next.js - codesandbox container (sometimes buggy, if so try this example)
• Modal Example - create-react-app
• Dropdown Example (useDropdown) - Next.js

Installation

yarn add react-useportal      or     npm i -S react-useportal

Usage

Stateless

import usePortal from 'react-useportal'

const App = () => {
  const { Portal } = usePortal()

  return (
    <Portal>
      This text is portaled at the end of document.body!
    </Portal>
  )
}

const App = () => {
  const { Portal } = usePortal()

  return (
    <Portal bindTo={document && document.getElementById('san-francisco')}>
      This text is portaled into San Francisco!
    </Portal>
  )
}

With State

import usePortal from 'react-useportal'

const App = () => {
  var { openPortal, closePortal, isOpen, Portal } = usePortal()

  // want to use array destructuring? You can do that too
  var [openPortal, closePortal, isOpen, Portal] = usePortal()

  return (
    <>
      <button onClick={openPortal}>
        Open Portal
      </button>
      {isOpen && (
        <Portal>
          <p>
            This Portal handles its own state.{' '}
            <button onClick={closePortal}>Close me!</button>, hit ESC or
            click outside of me.
          </p>
        </Portal>
      )}
    </>
  )
}

Need Animations?

import usePortal from 'react-useportal'

const App = () => {
  const { openPortal, closePortal, isOpen, Portal } = usePortal()
  return (
    <>
      <button onClick={openPortal}>
        Open Portal
      </button>
      <Portal>
        <p className={isOpen ? 'animateIn' : 'animateOut'}>
          This Portal handles its own state.{' '}
          <button onClick={closePortal}>Close me!</button>, hit ESC or
          click outside of me.
        </p>
      </Portal>
    </>
  )
}

Customizing the Portal directly

By using onOpen, onClose or any other event handler, you can modify the portal and return it. See useDropdown for a working example. It's important that you pass the event object to openPortal.

const App = () => {
  const { openPortal, isOpen } = usePortal({
    onOpen({ portal }) {
      portal.current.style.cssText = `
        position: absolute;
        /* add your custom styles here! */
      `
      return portal
    }
  })
  
  return <button onClick={e => openPortal(e)}>Click Me<button>
}

Make sure you are passing the html synthetic event to the openPortal. i.e. onClick={e => openPortal(e)}

Options

Option	Description
closeOnOutsideClick	This will close the portal when not clicking within the portal. Default is true
closeOnEsc	This will allow you to hit ESC and it will close the modal. Default is true
renderBelowClickedElement	This will put the portal right under the element that you click on. Great for dropdowns. Required to pass event to openPortal onClick={event => openPortal(event)}
bindTo	This is the DOM node you want to attach the portal to. By default it attaches to document.body
isOpen	This will be the default for the portal. Default is false
onOpen	This is used to call something when the portal is opened and to modify the css of the portal directly
onClose	This is used to call something when the portal is closed and to modify the css of the portal directly
html event handlers (i.e. onClick)	These can be used instead of onOpen to modify the css of the portal directly

Option Usage

const {
  openPortal,
  closePortal,
  togglePortal,
  isOpen,
  Portal
} = usePortal({
  closeOnOutsideClick: true,
  closeOnEsc: true,
  renderBelowClickedElement, // appear directly under the clicked element/node in the DOM
  bindTo, // attach the portal to this node in the DOM
  isOpen: false,
  onOpen: ({ event, portal, targetEl }) => {},
  onClose({ event, portal, targetEl }) {},
  // in addition, any event handler such as onClick, onMouseOver, etc will be handled like
  onClick({ event, portal, targetEl }) {}
})

Todos

• add support for popup windows resource 1 resource 2. Maybe something like

  const { openPortal, closePortal, isOpen, Portal } = usePortal({
    popup: ['', '', 'width=600,height=400,left=200,top=200']
  })
  // window.open('', '', 'width=600,height=400,left=200,top=200')

• tests (priority)
• maybe have a <Provider order={['Portal', 'openPortal']} /> then you can change the order of the array destructuring syntax
• instead of having a stateful option, just make usePortal stateful, and allow import { Portal } from 'react-useportal'
• make work without requiring the html synthetic event
• add example for tooltip (like this one)
• add as many examples as possible 😊
• fix code so maintainability is A
• set up code climate test coverage
• optimize badges see awesome badge list
  • add code climate test coverage badge
• document when you are required to have synthetic event
• make isomorphic
• continuous integration
• greenkeeper