NgxGallery

A simple native gallery component for Angular 8+ and 13+
With image error handler.

Important info

This package was forked from - @kolkov/ngx-gallery

What was changed

Added - <img (error)='errorHandler()'> error image handler to stop loader icon and show error image if needed
Added - defaultErrorImage option to pass default error image
Added - errorImage option to galleryImages array to specify image Url for each image if needed

Installation

Install via [npm][npm] package manager

1npm install @manderlai/ngx-gallery --save

where

import {Component, OnInit} from '@angular/core';
import {NgxGalleryOptions} from '@manderlai/ngx-gallery';
import {NgxGalleryImage} from '@manderlai/ngx-gallery';
import {NgxGalleryAnimation} from '@manderlai/ngx-gallery';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.scss']
})
export class AppComponent implements OnInit{
  galleryOptions: NgxGalleryOptions[];
  galleryImages: NgxGalleryImage[];

  constructor() { }

  ngOnInit() {
    this.galleryOptions = [
      {
        width: '600px',
        height: '400px',
        thumbnailsColumns: 4,
        defaultErrorImage: 'assets/img/missing-image.svg',
        imageAnimation: NgxGalleryAnimation.Slide
      },
      // max-width 800
      {
        breakpoint: 800,
        width: '100%',
        height: '600px',
        imagePercent: 80,
        thumbnailsPercent: 20,
        thumbnailsMargin: 20,
        thumbnailMargin: 20
      },
      // max-width 400
      {
        breakpoint: 400,
        preview: false
      }
    ];

    this.galleryImages = [
      {
        small: 'assets/img/gallery/1-small.jpeg',
        medium: 'assets/img/gallery/1-medium.jpeg',
        big: 'assets/img/gallery/1-big.jpeg',
        errorImage: 'assets/img/missing-image.svg',
      },
      {
        small: 'assets/img/gallery/2-small.jpeg',
        medium: 'assets/img/gallery/2-medium.jpeg',
        big: 'assets/img/gallery/2-big.jpeg'
      },
      {
        small: 'assets/img/gallery/3-small.jpeg',
        medium: 'assets/img/gallery/3-medium.jpeg',
        big: 'assets/img/gallery/3-big.jpeg'
      },{
        small: 'assets/img/gallery/4-small.jpeg',
        medium: 'assets/img/gallery/4-medium.jpeg',
        big: 'assets/img/gallery/4-big.jpeg',
        errorImage: 'assets/img/missing-image-2.svg',
      },
      {
        small: 'assets/img/gallery/5-small.jpeg',
        medium: 'assets/img/gallery/5-medium.jpeg',
        big: 'assets/img/gallery/5-big.jpeg'
      }
    ];
  }
}

add this class to app CSS .ngx-gallery { display: inline-block; margin-bottom: 20px; }

API

Inputs

Input	Type	Default	Required	Description
[options]	NgxGalleryOptions[]	-	no	Config options for the Gallery
[images]	NgxGalleryImage[]	-	no	Images array

Outputs

Output	Description
(change)	Triggered on image change
(imagesReady)	Triggered when images length > 0
(previewOpen)	Triggered on preview open
(previewClose)	Triggered on preview close
(previewChange)	Triggered on preview image change

Methods

Name	Description
show(index: number): void	Shows image at index
showNext(): void	Shows next image
showPrev(): void	Shows prev image
canShowNext(): boolean	Returns true if there is next image
canShowPrev(): boolean	Returns true if there is prev image
openPreview(index: number): void	Opens preview at index
moveThumbnailsLeft(): void	Moves thumbnails to left
moveThumbnailsRight(): void	Moves thumbnails to right
canMoveThumbnailsLeft(): boolean	Returns true if you can move thumbnails to left
canMoveThumbnailsRight(): boolean	Returns true if you can move thumbnails to right

NgxGalleryOptions

Layout options

Input	Type	Default	Required	Description
width	string	500px	no	Gallery width
height	string	400px	no	Gallery height
breakpoint	number	undefined	no	Responsive breakpoint, works like media query max-width
fullWidth	bolean	false	no	Sets the same width as browser
layout	string	NgxGalleryLayout.Bottom	no	Sets thumbnails position
startIndex	number	0	no	Sets index of selected image on start
linkTarget	string	_blank	no	Sets target attribute of link
lazyLoading	boolean	true	no	Enables/disables lazy loading for images

Image options

Input	Type	Default	Required	Description
defaultErrorImage	string	null	no	Url to error image
image	boolean	true	no	Enables or disables image
imageDescription	boolean	true	no	Enables or disables description for images
imagePercent	number	75	no	Percentage height
imageArrows	boolean	true	no	Enables or disables arrows
imageArrowsAutoHide	boolean	false	no	Enables or disables arrows auto hide
imageSwipe	boolean	false	no	Enables or disables swipe
imageAnimation	string	NgxGalleryAnimation.Fade	no	Animation type
imageSize	string	NgxGalleryImageSize.Cover	no	Image size
imageAutoPlay	boolean	false	no	Enables or disables auto play
imageAutoPlayInterval	number	2000	no	Interval for auto play (ms)
imageAutoPlayPauseOnHover	boolean	false	no	Enables or disables pause auto play on hover
imageInfinityMove	boolean	false	no	Enables or disables infinity move by arrows
imageActions	NgxGalleryAction[]	[]	no	Enables or disables navigation bullets

Thumbnails options

Input	Type	Default	Required	Description
thumbnails	boolean	true	no	Enables or disables thumbnails
thumbnailsColumns	number	4	no	Columns count
thumbnailsRows	number	1	no	Rows count
thumbnailsPercent	number	25	no	Percentage height
thumbnailsMargin	number	10	no	Margin between thumbnails and image
thumbnailsArrows	boolean	true	no	Enables or disables arrows
thumbnailsArrowsAutoHide	boolean	false	no	Enables or disables arrows auto hide
thumbnailsSwipe	boolean	false	no	Enables or disables swipe
thumbnailsMoveSize	number	1	no	Number of items to move on arrow click
thumbnailsOrder	number	NgxGalleryOrder.Column	no	Images order
thumbnailsRemainingCount	boolean	false	no	If true arrows are disabled and last item has label with remaining count
thumbnailsAsLinks	boolean	false	no	Enables or disables links on thumbnails
thumbnailsAutoHide	boolean	false	no	Hides thumbnails if there is only one image
thumbnailMargin	number	10	no	Margin between images in thumbnails
thumbnailSize	string	NgxGalleryImageSize.Cover	no	Thumbnail size
thumbnailActions	NgxGalleryAction[]	[]	no	Array of custom actions
thumbnailClasses	string[]	[]	no	Custom classes to add to thumbnail component

Preview options

Input	Type	Default	Required	Description
preview	boolean	true	no	Enables or disables preview
previewDescription	boolean	true	no	Enables or disables description for images
previewArrows	boolean	true	no	Enables or disables arrows
previewArrowsAutoHide	boolean: string	false	no	Enables or disables arrows auto hide
previewSwipe	boolean	false	no	Enables or disables swipe
previewFullscreen	boolean	false	no	Enables or disables fullscreen icon
previewForceFullscreen	boolean	false	no	Enables or disables opening preview in fullscreen mode
previewCloseOnClick	boolean	false	no	Enables or disables closing preview by click
previewCloseOnEsc	boolean	false	no	Enables or disables closing preview by esc keyboard
previewKeyboardNavigation	boolean	false	no	Enables or disables navigation by keyboard
previewAnimation	boolean	true	no	Enables or disables image loading animation
previewAutoPlay	boolean	false	no	Enables or disables auto play
previewAutoPlayInterval	number	2000	no	Interval for auto play (ms)
previewAutoPlayPauseOnHover	boolean	false	no	Enables or disables pouse auto play on hover
previewInfinityMove	boolean	false	no	Enables or disables infinity move by arrows
previewZoom	boolean	false	no	Enables or disables zoom in and zoom out
previewZoomStep	number	0.1	no	Step for zoom change
previewZoomMax	number	2	no	Max value for zoom
previewZoomMin	number	0.5	no	Min value for zoom
previewRotate	boolean	false	no	Enables or disables rotate buttons
previewDownload	boolean	false	no	Enables or disables download button
previewBullets	boolean	false	no	Enables or disables navigation bullets

Icons options

Input	Type	Default	Required	Description
arrowPrevIcon	string	'fa fa-arrow-circle-left'	no	Icon for prev arrow
arrowNextIcon	string	'fa fa-arrow-circle-right'	no	Icon for next arrow
closeIcon	string	'fa fa-times-circle'	no	Icon for close button
fullscreenIcon	string	'fa fa-arrows-alt'	no	Icon for fullscreen button
spinnerIcon	string	'fa fa-spinner fa-pulse fa-3x fa-fw'	no	Icon for spinner
zoomInIcon	string	'fa fa-search-plus'	no	Icon for zoom in
zoomOutIcon	string	'fa fa-search-minus'	no	Icon for zoom out
rotateLeftIcon	string	'fa fa-undo'	no	Icon for rotate left
rotateRightIcon	string	'fa fa-repeat'	no	Icon for rotate right
downloadIcon	string	'fa fa-arrow-circle-down'	no	Icon for download
actions	NgxGalleryAction[]	[]	no	Array of new custom actions that will be added to the left of the current close/zoom/fullscreen icons

NgxGalleryImage

Input	Type	Default	Required	Description
small	string/SafeResourceUrl	-	no	Url used in thumbnails
medium	string/SafeResourceUrl	-	no	Url used in image
big	string/SafeResourceUrl	-	yes	Url used in preview
description	string	-	no	Description used in preview
errorImage	string/SafeResourceUrl	-	no	Url used to show error image
url	string	-	no	Url used in link
label	string	-	no	Label used for aria-label when thumbnail is a link

NgxGalleryAnimation

• Fade (default)
• Slide
• Rotate
• Zoom

NgxGalleryImageSize

• Cover (default)
• Contain

NgxGalleryLayout

• Top
• Bottom (default)

NgxGalleryOrder

• Column (default)
• Row
• Page

NgxGalleryAction

• icon | Type: string - icon for custom action
• disabled | Type: boolean | Default value: false - if the icon should be disabled
• titleText | Type: string | Default value: '' - text to set the title attribute to
• onClick | Type: (event: Event, index: number) => void - Output function to call when custom action icon is clicked

What's included

Within the download you'll find the following directories and files. You'll see something like this:

ngx-gallery/
└── projects/
    ├── gallery/
    └── gallery-app/

gallery/ - library

gallery-app/ - demo application

Credits

This library is being fully rewritten for next Angular versions from original abandoned library written by Łukasz Gałka. I maintained full compatibility with the original library at the api level. https://github.com/lukasz-galka/ngx-gallery