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React Image Lightbox

A flexible lightbox component for displaying images in a React project.

DEMO

Features

• Keyboard shortcuts (with rate limiting)
• Image Zoom
• Flexible rendering using src values assigned on the fly
• Image preloading for smoother viewing
• Mobile friendly, with pinch to zoom and swipe (Thanks, @webcarrot!)

Example

import React, { Component } from 'react';
import Lightbox from 'react-image-lightbox';
import 'react-image-lightbox/style.css'; // This only needs to be imported once in your app

const images = [
  '//placekitten.com/1500/500',
  '//placekitten.com/4000/3000',
  '//placekitten.com/800/1200',
  '//placekitten.com/1500/1500',
];

export default class LightboxExample extends Component {
  constructor(props) {
    super(props);

    this.state = {
      photoIndex: 0,
      isOpen: false,
    };
  }

  render() {
    const { photoIndex, isOpen } = this.state;

    return (
      <div>
        <button type="button" onClick={() => this.setState({ isOpen: true })}>
          Open Lightbox
        </button>

        {isOpen && (
          <Lightbox
            mainSrc={images[photoIndex]}
            nextSrc={images[(photoIndex + 1) % images.length]}
            prevSrc={images[(photoIndex + images.length - 1) % images.length]}
            onCloseRequest={() => this.setState({ isOpen: false })}
            onMovePrevRequest={() =>
              this.setState({
                photoIndex: (photoIndex + images.length - 1) % images.length,
              })
            }
            onMoveNextRequest={() =>
              this.setState({
                photoIndex: (photoIndex + 1) % images.length,
              })
            }
          />
        )}
      </div>
    );
  }
}

Play with the code on the example on CodeSandbox

Options

Property	Type	Description
mainSrc (required)	string	Main display image url
prevSrc	string	Previous display image url (displayed to the left). If left undefined, onMovePrevRequest will not be called, and the button not displayed
nextSrc	string	Next display image url (displayed to the right). If left undefined, onMoveNextRequest will not be called, and the button not displayed
mainSrcThumbnail	string	Thumbnail image url corresponding to props.mainSrc. Displayed as a placeholder while the full-sized image loads.
prevSrcThumbnail	string	Thumbnail image url corresponding to props.prevSrc. Displayed as a placeholder while the full-sized image loads.
nextSrcThumbnail	string	Thumbnail image url corresponding to props.nextSrc. Displayed as a placeholder while the full-sized image loads.
onCloseRequest (required)	func	Close window event. Should change the parent state such that the lightbox is not rendered
onMovePrevRequest	func	Move to previous image event. Should change the parent state such that props.prevSrc becomes props.mainSrc, props.mainSrc becomes props.nextSrc, etc.
onMoveNextRequest	func	Move to next image event. Should change the parent state such that props.nextSrc becomes props.mainSrc, props.mainSrc becomes props.prevSrc, etc.
onImageLoad	func	Called when an image loads. (imageSrc: string, srcType: string, image: object): void
onImageLoadError	func	Called when an image fails to load. (imageSrc: string, srcType: string, errorEvent: object): void
imageLoadErrorMessage	node	What is rendered in place of an image if it fails to load. Centered in the lightbox viewport. Defaults to the string "This image failed to load".
onAfterOpen	func	Called after the modal has rendered.
discourageDownloads	bool	When true, enables download discouragement (preventing [right-click -> Save Image As...]). Defaults to false.
animationDisabled	bool	When true, image sliding animations are disabled. Defaults to false.
animationOnKeyInput	bool	When true, sliding animations are enabled on actions performed with keyboard shortcuts. Defaults to false.
animationDuration	number	Animation duration (ms). Defaults to 300.
keyRepeatLimit	number	Required interval of time (ms) between key actions (prevents excessively fast navigation of images). Defaults to 180.
keyRepeatKeyupBonus	number	Amount of time (ms) restored after each keyup (makes rapid key presses slightly faster than holding down the key to navigate images). Defaults to 40.
imageTitle	node	Image title (Descriptive element above image)
imageCaption	node	Image caption (Descriptive element below image)
imageCrossOrigin	string	crossorigin attribute to append to img elements (MDN documentation)
toolbarButtons	node[]	Array of custom toolbar buttons
reactModalStyle	Object	Set z-index style, etc., for the parent react-modal (react-modal style format)
reactModalProps	Object	Override props set on react-modal (https://github.com/reactjs/react-modal)
imagePadding	number	Padding (px) between the edge of the window and the lightbox. Defaults to 10.
clickOutsideToClose	bool	When true, clicks outside of the image close the lightbox. Defaults to true.
enableZoom	bool	Set to false to disable zoom functionality and hide zoom buttons. Defaults to true.
wrapperClassName	string	Class name which will be applied to root element after React Modal
nextLabel	string	aria-label and title set on the 'Next' button. Defaults to 'Next image'.
prevLabel	string	aria-label and title set on the 'Previous' button. Defaults to 'Previous image'.
zoomInLabel	string	aria-label and title set on the 'Zoom In' button. Defaults to 'Zoom in'.
zoomOutLabel	string	aria-label and title set on the 'Zoom Out' button. Defaults to 'Zoom out'.
closeLabel	string	aria-label and title set on the 'Close Lightbox' button. Defaults to 'Close lightbox'.
loader	node	Custom Loading indicator for loading

Browser Compatibility

Browser	Works?
Chrome	Yes
Firefox	Yes
Safari	Yes
IE 11	Yes

Contributing

After cloning the repository and running npm install inside, you can use the following commands to develop and build the project.

# Starts a webpack dev server that hosts a demo page with the lightbox.
# It uses react-hot-loader so changes are reflected on save.
npm start

# Lints the code with eslint and my custom rules.
yarn run lint

# Lints and builds the code, placing the result in the dist directory.
# This build is necessary to reflect changes if you're
#  `npm link`-ed to this repository from another local project.
yarn run build

Pull requests are welcome!

License

MIT