bsky-app/src/view/com/util/images/ImageLayoutGrid.tsx

105 lines
3 KiB
TypeScript

import React from 'react'
import {StyleProp, StyleSheet, View, ViewStyle} from 'react-native'
import {AppBskyEmbedImages} from '@atproto/api'
import {GalleryItem} from './Gallery'
interface ImageLayoutGridProps {
images: AppBskyEmbedImages.ViewImage[]
onPress?: (index: number) => void
onLongPress?: (index: number) => void
onPressIn?: (index: number) => void
style?: StyleProp<ViewStyle>
}
export function ImageLayoutGrid({style, ...props}: ImageLayoutGridProps) {
return (
<View style={style}>
<View style={styles.container}>
<ImageLayoutGridInner {...props} />
</View>
</View>
)
}
interface ImageLayoutGridInnerProps {
images: AppBskyEmbedImages.ViewImage[]
onPress?: (index: number) => void
onLongPress?: (index: number) => void
onPressIn?: (index: number) => void
}
function ImageLayoutGridInner(props: ImageLayoutGridInnerProps) {
const count = props.images.length
switch (count) {
case 2:
return (
<View style={styles.flexRow}>
<View style={styles.smallItem}>
<GalleryItem {...props} index={0} imageStyle={styles.image} />
</View>
<View style={styles.smallItem}>
<GalleryItem {...props} index={1} imageStyle={styles.image} />
</View>
</View>
)
case 3:
return (
<View style={styles.flexRow}>
<View style={{flex: 2, aspectRatio: 1}}>
<GalleryItem {...props} index={0} imageStyle={styles.image} />
</View>
<View style={{flex: 1}}>
<View style={styles.smallItem}>
<GalleryItem {...props} index={1} imageStyle={styles.image} />
</View>
<View style={styles.smallItem}>
<GalleryItem {...props} index={2} imageStyle={styles.image} />
</View>
</View>
</View>
)
case 4:
return (
<>
<View style={styles.flexRow}>
<View style={styles.smallItem}>
<GalleryItem {...props} index={0} imageStyle={styles.image} />
</View>
<View style={styles.smallItem}>
<GalleryItem {...props} index={1} imageStyle={styles.image} />
</View>
</View>
<View style={styles.flexRow}>
<View style={styles.smallItem}>
<GalleryItem {...props} index={2} imageStyle={styles.image} />
</View>
<View style={styles.smallItem}>
<GalleryItem {...props} index={3} imageStyle={styles.image} />
</View>
</View>
</>
)
default:
return null
}
}
// This is used to compute margins (rather than flexbox gap) due to Yoga bugs:
// https://github.com/facebook/yoga/issues/1418
const IMAGE_GAP = 5
const styles = StyleSheet.create({
container: {
marginHorizontal: -IMAGE_GAP / 2,
marginVertical: -IMAGE_GAP / 2,
},
flexRow: {flexDirection: 'row'},
smallItem: {flex: 1, aspectRatio: 1},
image: {
margin: IMAGE_GAP / 2,
},
})