/react-grid-gallery

Justified image gallery component for React

Primary LanguageJavaScriptMIT LicenseMIT

React Grid Gallery

Justified image gallery component for React based upon React Images by jossmac.

Live Demo & Examples

https://benhowell.github.io/react-grid-gallery/

Installation

Using npm:

npm install --save react-grid-gallery

Quick (and dirty) Start

import React from 'react';
import { render } from 'react-dom';
import Gallery from 'react-grid-gallery';

const IMAGES =
[{
        src: "https://c2.staticflickr.com/9/8817/28973449265_07e3aa5d2e_b.jpg",
        thumbnail: "https://c2.staticflickr.com/9/8817/28973449265_07e3aa5d2e_n.jpg",
        thumbnailWidth: 320,
        thumbnailHeight: 174,
        isSelected: true,
        caption: "After Rain (Jeshu John - designerspics.com)"
},
{
        src: "https://c2.staticflickr.com/9/8356/28897120681_3b2c0f43e0_b.jpg",
        thumbnail: "https://c2.staticflickr.com/9/8356/28897120681_3b2c0f43e0_n.jpg",
        thumbnailWidth: 320,
        thumbnailHeight: 212,
        tags: [{value: "Ocean", title: "Ocean"}, {value: "People", title: "People"}],
        caption: "Boats (Jeshu John - designerspics.com)"
},

{
        src: "https://c4.staticflickr.com/9/8887/28897124891_98c4fdd82b_b.jpg",
        thumbnail: "https://c4.staticflickr.com/9/8887/28897124891_98c4fdd82b_n.jpg",
        thumbnailWidth: 320,
        thumbnailHeight: 212
}]

render(
        <Gallery images={IMAGES}/>,     
        document.getElementById('example-0')
);

Image Options

Property Type Default Description
src string undefined Required. A string referring to any valid image resource (file, url, etc).
thumbnail string undefined Required. A string referring to any valid image resource (file, url, etc).
thumbnailWidth number undefined Required. Width of the thumbnail image.
thumbnailHeight number undefined Required. Height of the thumbnail image.
tags array undefined Optional. An array of objects containing tag attributes (value and title). e.g. {value: "foo", title: "bar"}
isSelected bool undefined Optional. The selected state of the image.
caption string undefined Optional. Image caption.
srcset array undefined Optional. Array of srcsets for lightbox.

Gallery Options

Property Type Default Description
images array undefined Required. An array of objects containing image properties (see Image Options above).
enableImageSelection bool true Optional. Allow images to be selectable. Setting this option to false whilst supplying images with isSelected: true will result in those images being permanently selected.
onSelectImage func undefined Optional. Function to execute when an image is selected. Optional args: index (index of selected image in images array), image (the selected image). This function is only executable when enableImageSelection: true.
rowHeight number 180 Optional. The height of each row in the gallery.
margin number 2 Optional. The margin around each image in the gallery.
enableLightbox bool true Optional. Enable lightbox display of full size image when thumbnail clicked.
onClickThumbnail func openLightbox Optional. Function to execute when gallery thumbnail clicked. Overrides openLightbox.

Lightbox Options

NOTE: these options are passed inside the Gallery tag.

e.g.

<Gallery images={IMAGES} backdropClosesModal={true}/>
Property Type Default Description
backdropClosesModal bool false Optional. Allow users to exit the lightbox by clicking the backdrop.
currentImage number 0 Optional. The index of the image to display initially (only relevant when used in conjunction with isOpen: true property).
preloadNextImage bool true Optional. Based on the direction the user is navigating, preload the next available image.
customControls array undefined Optional. An array of elements to display as custom controls on the top of lightbox.
enableKeyboardInput bool true Optional. Supports keyboard input - esc, arrow left, and arrow right.
imageCountSeparator string ' of ' Optional. Customize separator in the image count.
isOpen bool false Optional. Whether or not the lightbox is displayed when gallery first rendered (can be used in conjunction with currentImage property, otherwise the first image will be diplayed).
showCloseButton bool true Optional. Display a close "X" button in top right corner.
showImageCount bool true Optional. Display image index, e.g., "3 of 20".
onClickImage func onClickImage Optional. Function to execute when lightbox image clicked. Overrides internal implementation of onClickImage.
onClickPrev func onClickPrev Optional. Function to execute when lightbox left arrow clicked. Overrides internal implementation of onClickPrev.
onClickNext func onClickNext Optional. Function to execute when lightbox right arrow clicked. Overrides internal implementation of onClickNext.

General Notes

  • As the inspiration for this component comes from Google Photos, very small thumbnails may not be the most aesthetically pleasing due to the border size applied when selected. A sensible rowHeight default of 180px has been chosen, but rowHeights down to 100px are still reasonable.

  • Gallery width is determined by the containing element.

  • Image Options: thumbnail can point to the same resource as src, bearing in mind the resultant data size of the gallery and page load cost. Thumbnails of whatever size will be scaled to match rowHeight.

  • If you don't know your thumbnailWidth and thumbnailHeight values, you can find these out using any number of javascript hacks, bearing in mind the load penalty associated with these methods.

License

React Grid Gallery is free to use for personal and commercial projects under the MIT License. Attribution is not required, but appreciated.

Acknowledgements