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components/commmon: Gallery component improvements (#1708)
* components/commmon: Gallery component improvements - Improved logic to render the Gallery Component more efficiently - Expanded the size of the images, when FullScreen is toggled - Added a button to minimize fullscreen slider * common/Gallery: Fix component crash when child is a single image In some situations, only a single image is uploaded, and in that case child.props.children is an object rather, than an array to map it over. * common/ImageSlider: Hide backdrop on FullScreenImageSlider Avoid minimizing gallery due to accidental touches
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,76 @@ | ||
| import React, { useMemo, useRef, useState } from 'react' | ||
| import { FullScreenImageSlider } from './ImageSlider' | ||
| import { ImageSlider } from 'components/common/campaign-file/roles' | ||
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|
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| type ChildComponentProps = { | ||
| children: JSX.Element[] | JSX.Element | ||
| images: ImageSlider[] | ||
| } | ||
|
|
||
| /** | ||
| * Gallery component which allows images to expand whenever clicked. | ||
| * @param {React.JSX.Element | React.JSX.Element[]} children Single React Element , or array of React Elements. | ||
| * @param {ImageSlider[]} images List of images to show when gallery is expanded | ||
| * @returns | ||
| */ | ||
| export default function Gallery({ children, images }: ChildComponentProps) { | ||
| const initialImage = useRef<number>(0) | ||
| const [toggleFullScreeSlider, setToggleFullScreenSlider] = useState(false) | ||
|
|
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| const onOpenFullScreenSlider = (index: number) => { | ||
| setToggleFullScreenSlider(true) | ||
| initialImage.current = index | ||
| } | ||
|
|
||
| const onCloseFullScreenSlider = () => { | ||
| setToggleFullScreenSlider(false) | ||
| initialImage.current = 0 | ||
| } | ||
|
|
||
| const NestedChild = useMemo(() => { | ||
| const childrenCount = React.Children.count(children) | ||
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| //if childrenCount > 1, assume list of thumbnail images are shown | ||
| if (childrenCount > 1) { | ||
| return React.Children.map(children, (child, index) => { | ||
| return React.cloneElement(child, { | ||
| onClick: () => onOpenFullScreenSlider(index), | ||
| style: { cursor: 'pointer' }, | ||
| }) | ||
| }) | ||
| } | ||
|
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| //if childrenCount === 1, assume the child is a component such as slider or gallery grid, and the list of images are nested. | ||
| return React.Children.map(children, (child) => { | ||
| //In some situations the child could be a single JSX.Element containing an image, thus child.props.children is an object rather than array | ||
| if (images.length === 1) { | ||
| return React.cloneElement(child, { | ||
| style: { cursor: 'pointer' }, | ||
| onClick: () => onOpenFullScreenSlider(0), | ||
| }) | ||
| } | ||
|
|
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| const modifiedNestedChild = child.props.children.map((elem: JSX.Element, index: number) => { | ||
| return React.cloneElement(elem, { | ||
| onClick: () => onOpenFullScreenSlider(index), | ||
| }) | ||
| }) | ||
|
|
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| return React.cloneElement(child, { style: { cursor: 'pointer' } }, modifiedNestedChild) | ||
| }) | ||
| }, []) | ||
|
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| return ( | ||
| <> | ||
| {NestedChild} | ||
| {toggleFullScreeSlider && ( | ||
| <FullScreenImageSlider | ||
| sliderImages={images} | ||
| onOpen={toggleFullScreeSlider} | ||
| onClose={onCloseFullScreenSlider} | ||
| initialImage={initialImage} | ||
| /> | ||
| )} | ||
| </> | ||
| ) | ||
| } |
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