embla-carousel-angular
v18.0.0
Published
Angular wrapper for Embla Carousel
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npm i embla-carousel-angular
Embla Carousel provides the handy EmblaCarouselDirective
standalone directive for seamless integration with Angular. A minimal setup requires an overflow wrapper and a scroll container. Start by adding the following structure to your carousel:
import { AfterViewInit, Component, ViewChild } from '@angular/core'
import {
EmblaCarouselDirective,
EmblaCarouselType
} from 'embla-carousel-angular'
@Component({
selector: 'app-carousel',
template: `
<div class="embla" emblaCarousel [options]="options">
<div class="embla__container">
<div class="embla__slide">Slide 1</div>
<div class="embla__slide">Slide 2</div>
<div class="embla__slide">Slide 3</div>
</div>
</div>
`,
imports: [EmblaCarouselDirective],
standalone: true
})
export class CarouselComponent implements AfterViewInit {
@ViewChild(EmblaCarouselDirective) emblaRef: EmblaCarouselDirective
private emblaApi?: EmblaCarouselType
private options = { loop: false }
ngAfterViewInit() {
this.emblaApi = this.emblaRef.emblaApi
}
}
The element with the classname embla
is needed to cover the scroll overflow. Its child element with the container
classname is the scroll body that scrolls the slides. Continue by adding the following CSS to these elements:
.embla {
overflow: hidden;
}
.embla__container {
display: flex;
}
.embla__slide {
flex: 0 0 100%;
min-width: 0;
}
The emblaCarousel
directive takes the Embla Carousel options as part of its inputs. Additionally, you can access the API by using the @ViewChild
decorator to access the carousel in AfterViewInit
hook。
[!WARNING] Calling the following embla APIs directly will trigger too much ChangeDetection, which will lead to serious performance issues.
emblaApi.on()
emblaApi.scrollNext()
emblaApi.scrollPrev()
emblaApi.scrollTo()
Consider using the following methods which are wrapped with ngZone.runOutsideAngular()
:
EmblaCarouselDirective.scrollPrev()
EmblaCarouselDirective.scrollNext()
EmblaCarouselDirective.scrollTo()
import { AfterViewInit, Component, ViewChild } from '@angular/core'
import {
EmblaCarouselDirective,
EmblaCarouselType
} from 'embla-carousel-angular'
@Component({
selector: 'app-carousel',
template: `
<div class="embla" emblaCarousel [options]="options">
<div class="embla__container">
<div class="embla__slide">Slide 1</div>
<div class="embla__slide">Slide 2</div>
<div class="embla__slide">Slide 3</div>
</div>
</div>
`,
imports: [EmblaCarouselDirective],
standalone: true
})
export class CarouselComponent implements AfterViewInit {
@ViewChild(EmblaCarouselDirective) emblaRef: EmblaCarouselDirective
private emblaApi?: EmblaCarouselType
private options = { loop: false }
ngAfterViewInit() {
this.emblaApi = this.emblaRef.emblaApi
}
}
The emblaCarousel
directive also provides a custom event: emblaChange
that forwards embla events, also wrapped in ngZone.runOutsideAngular
. You need to listen by passing the specified event names into subscribeToEvents
input on demand.
import { AfterViewInit, Component, ViewChild } from '@angular/core'
import {
EmblaCarouselDirective,
EmblaCarouselType,
EmblaEventType
} from 'embla-carousel-angular'
@Component({
selector: 'app-carousel',
template: `
<div
class="embla"
emblaCarousel
[options]="options"
[subscribeToEvents]="subscribeToEvents"
(emblaChange)="onEmblaChange($event)"
>
<div class="embla__container">
<div class="embla__slide">Slide 1</div>
<div class="embla__slide">Slide 2</div>
<div class="embla__slide">Slide 3</div>
</div>
</div>
`,
imports: [EmblaCarouselDirective],
standalone: true
})
export class CarouselComponent implements AfterViewInit {
@ViewChild(EmblaCarouselDirective) emblaRef: EmblaCarouselDirective
private emblaApi?: EmblaCarouselType
private options = { loop: false }
public readonly subscribeToEvents: EmblaEventType[] = [
'init',
'pointerDown',
'pointerUp',
'slidesChanged',
'slidesInView',
'select',
'settle',
'destroy',
'reInit',
'resize',
'scroll'
]
onEmblaChanged(event: EmblaEventType): void {
console.log(`Embla event triggered: ${event}`)
}
ngAfterViewInit() {
this.emblaApi = this.emblaRef.emblaApi
}
}
Start by installing the plugin you want to use. In this example, we're going to install the Autoplay plugin:
npm install embla-carousel-autoplay --save
The emblaCarousel
directive inputs also accepts plugins. Note that plugins need to be passed in an array like so:
import { AfterViewInit, Component, ViewChild } from '@angular/core'
import {
EmblaCarouselDirective,
EmblaCarouselType
} from 'embla-carousel-angular'
import Autoplay from 'embla-carousel-autoplay'
@Component({
selector: 'app-carousel',
template: `
<div class="embla" emblaCarousel [options]="options" [plugins]="plugins">
<div class="embla__container">
<div class="embla__slide">Slide 1</div>
<div class="embla__slide">Slide 2</div>
<div class="embla__slide">Slide 3</div>
</div>
</div>
`,
imports: [EmblaCarouselDirective],
standalone: true
})
export class CarouselComponent implements AfterViewInit {
@ViewChild(EmblaCarouselDirective) emblaRef: EmblaCarouselDirective
private emblaApi?: EmblaCarouselType
public options = { loop: false }
public plugins = [Autoplay()]
ngAfterViewInit() {
this.emblaApi = this.emblaRef.emblaApi
}
}