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import React, {useMemo, useCallback, useState} from 'react'
import {
ImageStyle,
StyleSheet,
TouchableOpacity,
View,
TextInput as RNTextInput,
useWindowDimensions,
ScrollView as RNScrollView,
} from 'react-native'
import {ScrollView, TextInput} from './util'
import {Image} from 'expo-image'
import {usePalette} from 'lib/hooks/usePalette'
import {gradients, s} from 'lib/styles'
import {enforceLen} from 'lib/strings/helpers'
import {MAX_ALT_TEXT} from 'lib/constants'
import {useTheme} from 'lib/ThemeContext'
import {useIsKeyboardVisible} from 'lib/hooks/useIsKeyboardVisible'
import {Text} from '../util/text/Text'
import LinearGradient from 'react-native-linear-gradient'
import {isWeb} from 'platform/detection'
import {ImageModel} from 'state/models/media/image'
import {useLingui} from '@lingui/react'
import {Trans, msg} from '@lingui/macro'
import {useModalControls} from '#/state/modals'
export const snapPoints = ['100%']
interface Props {
image: ImageModel
}
export function Component({image}: Props) {
const pal = usePalette('default')
const theme = useTheme()
const {_} = useLingui()
const [altText, setAltText] = useState(image.altText)
const windim = useWindowDimensions()
const {closeModal} = useModalControls()
const inputRef = React.useRef<RNTextInput>(null)
const scrollViewRef = React.useRef<RNScrollView>(null)
const keyboardShown = useIsKeyboardVisible()
// Autofocus hack when we open the modal. We have to wait for the animation to complete first
React.useEffect(() => {
setTimeout(() => {
inputRef.current?.focus()
}, 500)
}, [])
// We'd rather be at the bottom here so that we can easily dismiss the modal instead of having to scroll
// (especially on android, it acts weird)
React.useEffect(() => {
if (keyboardShown[0]) {
scrollViewRef.current?.scrollToEnd()
}
}, [keyboardShown])
const imageStyles = useMemo<ImageStyle>(() => {
const maxWidth = isWeb ? 450 : windim.width
if (image.height > image.width) {
return {
resizeMode: 'contain',
width: '100%',
aspectRatio: 1,
borderRadius: 8,
}
}
return {
width: '100%',
height: (maxWidth / image.width) * image.height,
borderRadius: 8,
}
}, [image, windim])
const onUpdate = useCallback(
(v: string) => {
v = enforceLen(v, MAX_ALT_TEXT)
setAltText(v)
image.setAltText(v)
},
[setAltText, image],
)
const onPressSave = useCallback(() => {
image.setAltText(altText)
closeModal()
}, [closeModal, image, altText])
return (
<ScrollView
testID="altTextImageModal"
style={[pal.view, styles.scrollContainer]}
keyboardShouldPersistTaps="always"
ref={scrollViewRef}
nativeID="imageAltText">
<View style={styles.scrollInner}>
<View style={[pal.viewLight, styles.imageContainer]}>
<Image
testID="selectedPhotoImage"
style={imageStyles}
source={{
uri: image.cropped?.path ?? image.path,
}}
contentFit="contain"
accessible={true}
accessibilityIgnoresInvertColors
/>
</View>
<TextInput
testID="altTextImageInput"
style={[styles.textArea, pal.border, pal.text]}
keyboardAppearance={theme.colorScheme}
multiline
placeholder={_(msg`Add alt text`)}
placeholderTextColor={pal.colors.textLight}
value={altText}
onChangeText={onUpdate}
accessibilityLabel={_(msg`Image alt text`)}
accessibilityHint=""
accessibilityLabelledBy="imageAltText"
// @ts-ignore This is fine, type is weird on the BottomSheetTextInput
ref={inputRef}
/>
<View style={styles.buttonControls}>
<TouchableOpacity
testID="altTextImageSaveBtn"
onPress={onPressSave}
accessibilityLabel={_(msg`Save alt text`)}
accessibilityHint=""
accessibilityRole="button">
<LinearGradient
colors={[gradients.blueLight.start, gradients.blueLight.end]}
start={{x: 0, y: 0}}
end={{x: 1, y: 1}}
style={[styles.button]}>
<Text type="button-lg" style={[s.white, s.bold]}>
<Trans>Done</Trans>
</Text>
</LinearGradient>
</TouchableOpacity>
</View>
</View>
</ScrollView>
)
}
const styles = StyleSheet.create({
scrollContainer: {
flex: 1,
height: '100%',
paddingHorizontal: isWeb ? 0 : 12,
paddingVertical: isWeb ? 0 : 24,
},
scrollInner: {
gap: 12,
paddingTop: isWeb ? 0 : 12,
},
imageContainer: {
borderRadius: 8,
},
textArea: {
borderWidth: 1,
borderRadius: 6,
paddingTop: 10,
paddingHorizontal: 12,
fontSize: 16,
height: 100,
textAlignVertical: 'top',
},
button: {
flexDirection: 'row',
alignItems: 'center',
justifyContent: 'center',
width: '100%',
borderRadius: 32,
padding: 10,
},
buttonControls: {
gap: 8,
paddingBottom: isWeb ? 0 : 50,
},
})
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