Press n or j to go to the next uncovered block, b, p or k for the previous block.
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import cx from 'classnames'
import PropTypes from 'prop-types'
import useControlledState from '@s-ui/react-hooks/lib/useControlledState'
import CarouselArrow from './CarouselArrow.js'
import CarouselItem from './CarouselItem.js'
import {destroySlider, getItemsToRender, handleFn} from './settings.js'
import slidy from './slidy.js'
const CarouselContainer = ({
arrowLeft,
arrowRight,
children,
classNameBase,
onNext,
onPrevious,
onSlide,
onDestroy,
onInit,
onSlideAfter,
onSlideBefore,
ease,
hasInfiniteLoop,
defaultSlide,
slide,
itemsToPreload,
hasKeyboardNavigation,
numOfSlides,
hasArrows,
slideSpeed
}) => {
const [slidyInstance, setSlidyInstance] = useState({
goTo: handleFn(),
next: handleFn(),
prev: handleFn(),
updateItems: handleFn()
})
const [index, setIndex, , initialSlide] = useControlledState(slide, defaultSlide)
const [maxIndex, setMaxIndex] = useState(initialSlide)
const sliderContainerDOMEl = useRef(null)
const slidesDOMEl = useRef(null)
const items = Children.toArray(children).filter(child => child !== null)
useEffect(
() => {
if (slide !== index) {
handleFn(slidyInstance.goTo)(slide)
}
},
[slide, index] // eslint-disable-line
)
useEffect(
() => {
let handleKeyboard
const slidyInstance = slidy(sliderContainerDOMEl.current, {
ease,
doAfterSlide: ({currentSlide, ...other}, ...args) =>
handleFn(onSlideAfter)(
{
currentSlide,
...other,
index,
itemsLength: items.length,
initialSlide,
numOfSlides,
maxIndex
},
...args
),
doBeforeSlide: ({currentSlide, nextSlide, ...other}, ...args) =>
handleFn(onSlideBefore)(
{
currentSlide,
nextSlide,
...other,
index,
itemsLength: items.length,
defaultSlide,
numOfSlides,
maxIndex
},
...args
),
numOfSlides,
slideSpeed,
infiniteLoop: hasInfiniteLoop,
slidesDOMEl: slidesDOMEl.current,
initialSlide: index,
items: items.length,
onNext: nextIndex => {
setIndex(nextIndex)
nextIndex > maxIndex && setMaxIndex(nextIndex)
handleFn(onNext)({
index: nextIndex,
itemsLength: items.length,
initialSlide,
numOfSlides,
maxIndex
})
handleFn(onSlide)({
index: nextIndex,
itemsLength: items.length,
initialSlide,
numOfSlides,
maxIndex
})
return nextIndex
},
onPrev: nextIndex => {
setIndex(nextIndex)
handleFn(onPrevious)({
index: nextIndex,
itemsLength: items.length,
initialSlide,
numOfSlides,
maxIndex
})
handleFn(onSlide)({
index: nextIndex,
itemsLength: items.length,
initialSlide,
numOfSlides,
maxIndex
})
return nextIndex
}
})
setSlidyInstance(slidyInstance)
handleFn(onInit)({
index,
itemsLength: items.length,
initialSlide,
numOfSlides,
maxIndex
})
Iif (hasKeyboardNavigation) {
handleKeyboard = e => {
if (e.keyCode === 39) {
handleFn(slidyInstance.next)(e)
} else if (e.keyCode === 37) {
handleFn(slidyInstance.prev)(e)
}
}
document.addEventListener('keydown', handleKeyboard)
}
return () => {
destroySlider(slidyInstance, () =>
handleFn(onDestroy)({
initialSlide,
itemsLength: items.length,
numOfSlides,
index,
maxIndex
})
)
Iif (hasKeyboardNavigation) {
document.removeEventListener('keydown', handleKeyboard)
}
}
},
[] // eslint-disable-line
)
useEffect(function () {
slidyInstance && handleFn(slidyInstance.updateItems)(items.length)
})
const itemsToRender = getItemsToRender({
index,
maxIndex,
items,
itemsToPreload,
numOfSlides
})
const handlePrev = e => handleFn(slidyInstance.prev)(e)
const handleNext = e => items.length > numOfSlides && handleFn(slidyInstance.next)(e)
return (
<>
<CarouselArrow
className={cx(
`${classNameBase}-arrow`,
`${classNameBase}-arrowLeft`,
arrowLeft ? `${classNameBase}-arrowCustom` : `${classNameBase}-prev`
)}
label={arrowLeft ? null : 'Previous'}
role={arrowLeft ? null : 'button'}
hasArrows={hasArrows}
disabled={index === 0 && !hasInfiniteLoop}
onClick={handlePrev}
>
{arrowLeft}
</CarouselArrow>
<CarouselArrow
className={cx(
`${classNameBase}-arrow`,
`${classNameBase}-arrowRight`,
arrowRight ? `${classNameBase}-arrowCustom` : `${classNameBase}-next`
)}
label={arrowRight ? null : 'Next'}
role={arrowRight ? null : 'button'}
hasArrows={hasArrows}
disabled={(items.length <= numOfSlides || index === items.length - numOfSlides) && !hasInfiniteLoop}
onClick={handleNext}
>
{arrowRight}
</CarouselArrow>
<div ref={sliderContainerDOMEl}>
<ul className={cx(`${classNameBase}-itemsList`)} ref={slidesDOMEl}>
{Children.map(itemsToRender, (child, currentIndex) => (
<CarouselItem
data-index={currentIndex}
aria-hidden={currentIndex < index || currentIndex > index + numOfSlides}
classNameBase={classNameBase}
itemsLength={numOfSlides}
>
{child}
</CarouselItem>
))}
</ul>
</div>
</>
)
}
CarouselContainer.propTypes = {
/** Element to be used as the left arrow for the slider */
arrowLeft: PropTypes.element,
/** Element to be used as the right arrow for the slider */
arrowRight: PropTypes.element,
/** Children to be used as slides for the slider */
children: PropTypes.oneOfType([PropTypes.array, PropTypes.object]).isRequired,
/** Class base to create all clases for elements. Styles might break if you modify it. */
classNameBase: PropTypes.string,
/** Function that will be executed AFTER destroying the slider. Useful for clean up stuff */
onDestroy: PropTypes.func,
/** Function that will be executed AFTER initializing the slider */
onInit: PropTypes.func,
/** Function that will be executed AFTER slide transition has ended */
onSlideAfter: PropTypes.func,
/** change index handler **/
onSlide: PropTypes.func,
/** Function that will be executed BEFORE slide is happening */
onSlideBefore: PropTypes.func,
/** next handler **/
onNext: PropTypes.func,
/** previous handler **/
onPrevious: PropTypes.func,
/** Ease mode to use on translations */
ease: PropTypes.string,
/** Indicates if the slider will start with the first slide once it ends */
hasInfiniteLoop: PropTypes.bool,
/** Determine the first slide to start with */
defaultSlide: PropTypes.number,
/** Determine the number of items that will be preloaded */
itemsToPreload: PropTypes.number,
/** Activate navigation by keyboard */
hasKeyboardNavigation: PropTypes.bool,
/** Number of slides to show at once */
numOfSlides: PropTypes.number,
/** Determine if arrows should be shown */
hasArrows: PropTypes.bool,
/** Change dynamically the slide number, perfect to use with dots */
slide: PropTypes.number,
/** Determine the speed of the sliding animation */
slideSpeed: PropTypes.number
}
export default CarouselContainer
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