lightGallery

A modern, electron and nodejs based image viewer for Mac, Windows and Linux.

Main features

Built with Electron.
- LightGallery uses HTML, CSS, and JavaScript with Chromium and Node.js to build the app.
Cross-platform.
- LightGallery works across operating systems. You can use it on OS X, Windows, or Linux.
20+ Animations
- LightGallery comes with numerous number of beautiful in-built animations.
Animated thumbnails
- You also have the option to enable animated thumbnails from the settings.
Zoom & Fullscreen
- You can double-click on the image to see its actual size. Zoom-in and zoom-out controls can be used for changing the zoom values of the image.
Mouse Drag & keyboard Navigations
- LightGallery allows users to navigate between slides via mouse drag and keyboard arrows.
Pagers
Auto slideshow
Support various kind of image formats (jpg, png, gif, webp).
Highly customizable
And many more.

Watch ⭐ this repository. More features are coming

Settings

Name	Default	Description
mode	`'lg-slide'`	Type of transition between images. lightGallery comes with lots of transition effects such as `'lg-slide'`, `'lg-fade'`, `'lg-zoom-in'`, `'lg-zoom-in-big'`, `'lg-zoom-out'`, `'lg-zoom-out-big'`, `'lg-zoom-out-in'`, `'lg-zoom-in-out'`, `'lg-soft-zoom'`, `'lg-scale-up'`, `'lg-slide-circular'`, `'lg-slide-circular-vertical'`, `'lg-slide-vertical'`, `'lg-slide-vertical-growth'`, `'lg-slide-skew-only'`, `'lg-slide-skew-only-rev'`, `'lg-slide-skew-only-y'`, `'lg-slide-skew-only-y-rev'`, `'lg-slide-skew'`, `'lg-slide-skew-rev'`, `'lg-slide-skew-cross'`, `'lg-slide-skew-cross-rev'`, `'lg-slide-skew-ver'`, `'lg-slide-skew-ver-rev'`, `'lg-slide-skew-ver-cross'`, `'lg-slide-skew-ver-cross-rev'`, `'lg-lollipop'`, `'lg-lollipop-rev'`, `'lg-rotate'`, `'lg-rotate-rev'`, `'lg-tube'`
cssEasing	`'ease'`	Type of easing to be used for animations
speed	`600`	Transition duration (in ms).
hideBarsDelay	`6000`	Delay for hiding gallery controls in ms
useLeft	`false`	force lightgallery to use css left property instead of transform.
closable	`true`	allows clicks on dimmer to close gallery.
loop	`true`	If `false`, will disable the ability to loop back to the beginning of the gallery when on the last element.
keyPress	`true`	Enable keyboard navigation
controls	`true`	If `false`, prev/next buttons will not be displayed.
slideEndAnimatoin	`true`	Enable slideEnd animation
hideControlOnEnd	`false`	If `true`, prev/next button will be hidden on first/last image.
mousewheel	`true`	Change slide on mousewheel
preload	`1`	Number of preload slides. will exicute only after the current slide is fully loaded. ex:// you clicked on 4th image and if preload = 1 then 3rd slide and 5th slide will be loaded in the background after the 4th slide is fully loaded.. if preload is 2 then 2nd 3rd 5th 6th slides will be preloaded
showAfterLoad	`true`	Show Content once it is fully loaded
counter	`true`	Whether to show total number of images and index number of currently displayed image.
swipeThreshold	`50`	By setting the swipeThreshold (in px) you can set how far the user must swipe for the next/prev image.
enableDrag	`true`	Enables desktop mouse drag support
thumbnail	`true`	Enable thumbnails for the gallery
animateThumb	`true`	Enable thumbnail animation.
currentPagerPosition	`'middle'`	Position of selected thumbnail. `'left'` or `'middle'` or `'right'`
thumbWidth	`100`	Width of each thumbnails.
thumbContHeight	`100`	Height of the thumbnail container including padding and border
thumbMargin	`5`	Spacing between each thumbnails
toogleThumb	true	Whether to display thumbnail toggle button.
enableThumbDrag	`true`	Enables desktop mouse drag support for thumbnails.
swipeThreshold	`50`	By setting the swipeThreshold (in px) you can set how far the user must swipe for the next/prev slide.
autoplay	`true`	Enable gallery autoplay
pause	`5000`	The time (in ms) between each auto transition.
progressBar	`true`	Enable autoplay progress bar
fourceAutoplay	`false`	If `false` autoplay will be stopped after first user action
autoplayControls	`true`	Show/hide autoplay controls.
pager	`true`	Enable/Disable pager
zoom	`true`	Enable/Disable zoom option
scale	`1`	Value of zoom should be incremented/decremented

Development

Project's folders

app - code of your application goes here.
config - place for you to declare environment specific stuff.
build - in this folder lands built, runnable application.
releases - ready for distribution installers will land here.
resources - resources for particular operating system.
tasks - build and development environment scripts.

Installation

npm install

It will also download Electron runtime, and install dependencies for second package.json file inside app folder.

Starting the app

npm start

Making a release

To make ready for distribution installer use command:

npm run release

It will start the packaging process for the operating system you are running this command on. The file which is ready for distribution will be outputted to releases directory.

You can create Windows installer only when running on Windows, the same is true for Linux and OSX. So to generate all three installers you need all three operating systems.