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react-useportal

🌀 React hook for Portals

  • 1.0.19
  • latest
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usePortal

🌀 React hook for using Portals

undefined undefined undefined Known Vulnerabilities Known Vulnerabilities

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

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({
    bindTo: document && document.getElementById('san-francisco')
  })

  return (
    <Portal>
      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. If opening the portal from a click event it's important that you pass the event object to openPortal and togglePortal otherwise you will need to attach a ref to the clicked element (if you want to be able to open the portal without passing an event you will need to set programmaticallyOpen to true).

const useModal = () => {
  const { isOpen, openPortal, togglePortal, closePortal, Portal } = usePortal({
    onOpen({ portal }) {
      portal.current.style.cssText = `
        /* add your css here for the Portal */
        position: fixed;
        left: 50%;
        top: 50%;
        transform: translate(-50%,-50%);
        z-index: 1000;
      `
    }
  })

  return {
    Modal: Portal,
    openModal: openPortal,
    toggleModal: togglePortal,
    closeModal: closePortal,
    isOpen
  }
}

const App = () => {
  const { openModal, closeModal, isOpen, Modal } = useModal()
  
  return <>
    <button onClick={e => openModal(e)}>Open Modal<button>
    {isOpen && (
      <Modal>
        This will dynamically center to the middle of the screen regardless of the size of what you put in here
      </Modal>
    )}
  </>
}

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

Usage with a ref

If for some reason, you don't want to pass around the event to openPortal or togglePortal and you're not using programmaticallyOpen, you can use a ref like this.

import usePortal from 'react-useportal'

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

  return (
    <>
      {/* see below how I don't have to pass the event if I use the ref */}
      <button ref={ref} 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>
      )}
    </>
  )
}

Options

OptionDescription
closeOnOutsideClickThis will close the portal when not clicking within the portal. Default is true
closeOnEscThis will allow you to hit ESC and it will close the modal. Default is true
bindToThis is the DOM node you want to attach the portal to. By default it attaches to document.body
isOpenThis will be the default for the portal. Default is false
onOpenThis is used to call something when the portal is opened and to modify the css of the portal directly
onCloseThis is used to call something when the portal is closed and to modify the css of the portal directly
onPortalClickThis is fired whenever clicking on the Portal
html event handlers (i.e. onClick)These can be used instead of onOpen to modify the css of the portal directly. onMouseEnter and onMouseLeave example
programmaticallyOpenThis option allows you to open or toggle the portal without passing in an event. Default is false

Option Usage

const {
  openPortal,
  closePortal,
  togglePortal,
  isOpen,
  Portal,
  // if you don't pass an event to openPortal, closePortal, or togglePortal and you're not using programmaticallyOpen, you will need
  // to put this on the element you want to interact with/click
  ref,
  // if for some reason you want to interact directly with the portal, you can with this ref
  portalRef,
} = usePortal({
  closeOnOutsideClick: true,
  closeOnEsc: true,
  bindTo, // attach the portal to this node in the DOM
  isOpen: false,
  // `event` has all the fields that a normal `event` would have such as `event.target.value`, etc.
  // with the additional `portal` and `targetEl` added to it as seen in the examples below
  onOpen: (event) => {
    // can access: event.portal, event.targetEl, event.event, event.target, etc.
  },
  // `onClose` will not have an `event` unless you pass an `event` to `closePortal`
  onClose({ portal, targetEl, event }) {},
  // `targetEl` is the element that you either are attaching a `ref` to
  // or that you are putting `openPortal` or `togglePortal` or `closePortal` on
  onPortalClick({ portal, targetEl, event }) {},
  // in addition, any event handler such as onClick, onMouseOver, etc will be handled the same
  onClick({ portal, targetEl, event }) {}
})

Todos

  • React Native support. 1 2 3 4 5 Probably going to have to add a Provider...
  • add correct typescript return types
  • 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
  • fix code so maintainability is A
  • set up code climate test coverage
  • optimize badges see awesome badge list
    • add code climate test coverage badge

Keywords

FAQs

Package last updated on 03 Nov 2023

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