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src/features/offer/components/MoviesScreeningCalendar/MovieCalendarContext.tsx
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,149 @@ | ||
| import React, { | ||
| createContext, | ||
| useCallback, | ||
| useContext, | ||
| useMemo, | ||
| useRef, | ||
| useEffect, | ||
| useState, | ||
| PropsWithChildren, | ||
| } from 'react' | ||
| import { Animated, View, ViewStyle } from 'react-native' | ||
| import { FlatList } from 'react-native-gesture-handler' | ||
| import { Easing } from 'react-native-reanimated' | ||
| import styled from 'styled-components/native' | ||
|
|
||
| import { MovieCalendar } from 'features/offer/components/MovieCalendar/MovieCalendar' | ||
| import { handleMovieCalendarScroll } from 'features/offer/components/MoviesScreeningCalendar/utils' | ||
| import { useNextDays } from 'features/offer/helpers/useNextDays/useNextDays' | ||
| import { Anchor } from 'ui/components/anchor/Anchor' | ||
| import { useScrollToAnchor } from 'ui/components/anchor/AnchorContext' | ||
| import { useLayout } from 'ui/hooks/useLayout' | ||
|
|
||
| type MovieCalendarContextType = { | ||
| selectedDate: Date | ||
| goToDate: (date: Date) => void | ||
| } | ||
|
|
||
| const MovieCalendarContext = createContext<MovieCalendarContextType | undefined>(undefined) | ||
|
|
||
| const AnimatedCalendarView: React.FC<PropsWithChildren<{ selectedDate: Date }>> = ({ | ||
| selectedDate, | ||
| children, | ||
| }) => { | ||
| const fadeAnim = useRef(new Animated.Value(0)).current | ||
| const translateAnim = useRef(new Animated.Value(0)).current | ||
| const [width, setWidth] = useState<number>(0) | ||
|
|
||
| useEffect(() => { | ||
| translateAnim.setValue(0) | ||
| fadeAnim.setValue(0) | ||
| Animated.timing(translateAnim, { | ||
| toValue: 1, | ||
| duration: 200, | ||
| useNativeDriver: true, | ||
| easing: Easing.out(Easing.ease), | ||
| }).start() | ||
| Animated.timing(fadeAnim, { | ||
| toValue: 1, | ||
| duration: 300, | ||
| easing: Easing.in(Easing.ease), | ||
| useNativeDriver: true, | ||
| }).start() | ||
| }, [fadeAnim, translateAnim, selectedDate]) | ||
|
|
||
| return ( | ||
| <AnimationContainer> | ||
| <Animated.View | ||
| onLayout={({ nativeEvent }) => { | ||
| setWidth(nativeEvent.layout.width) | ||
| }} | ||
| style={{ | ||
| opacity: fadeAnim, | ||
| transform: [ | ||
| { translateX: Animated.subtract(Animated.multiply(translateAnim, width), width) }, | ||
| ], | ||
| }}> | ||
| {children} | ||
| </Animated.View> | ||
| </AnimationContainer> | ||
| ) | ||
| } | ||
|
|
||
| export const MovieCalendarProvider: React.FC<{ | ||
| nbOfDays: number | ||
| children: React.ReactNode | ||
| containerStyle?: ViewStyle | ||
| }> = ({ nbOfDays, containerStyle, children }) => { | ||
| const { dates, selectedDate, setSelectedDate } = useNextDays(nbOfDays) | ||
| const flatListRef = useRef<FlatList | null>(null) | ||
| const { width: flatListWidth, onLayout: onFlatListLayout } = useLayout() | ||
| const { width: itemWidth, onLayout: onItemLayout } = useLayout() | ||
| const scrollToAnchor = useScrollToAnchor() | ||
|
|
||
| const scrollToMiddleElement = useCallback( | ||
| (currentIndex: number) => { | ||
| const { offset } = handleMovieCalendarScroll(currentIndex, flatListWidth, itemWidth) | ||
|
|
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| flatListRef.current?.scrollToOffset({ | ||
| animated: true, | ||
| offset, | ||
| }) | ||
| }, | ||
| [flatListRef, flatListWidth, itemWidth] | ||
| ) | ||
|
|
||
| useEffect(() => { | ||
| const currentIndex = dates.findIndex( | ||
| (date) => (date as Date).toDateString() === selectedDate.toDateString() | ||
| ) | ||
|
|
||
| scrollToMiddleElement(currentIndex) | ||
| }, [selectedDate, dates, scrollToMiddleElement]) | ||
|
|
||
| useEffect(() => { | ||
| if (flatListRef?.current) { | ||
| flatListRef.current?.scrollToOffset({ offset: 0 }) | ||
| } | ||
| }, [flatListRef]) | ||
|
|
||
| const goToDate = useCallback( | ||
| (date: Date) => { | ||
| scrollToAnchor('movie-calendar') | ||
| setSelectedDate(date) | ||
| }, | ||
| [scrollToAnchor, setSelectedDate] | ||
| ) | ||
|
|
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| const value = useMemo(() => ({ selectedDate, goToDate }), [selectedDate, goToDate]) | ||
|
|
||
| return ( | ||
| <MovieCalendarContext.Provider value={value}> | ||
| <View style={containerStyle}> | ||
| <Anchor name="movie-calendar"> | ||
| <MovieCalendar | ||
| dates={dates} | ||
| selectedDate={selectedDate} | ||
| onTabChange={setSelectedDate} | ||
| flatListRef={flatListRef} | ||
| flatListWidth={flatListWidth} | ||
| onFlatListLayout={onFlatListLayout} | ||
| itemWidth={itemWidth} | ||
| onItemLayout={onItemLayout} | ||
| /> | ||
| </Anchor> | ||
| </View> | ||
| <AnimatedCalendarView selectedDate={selectedDate}>{children}</AnimatedCalendarView> | ||
| </MovieCalendarContext.Provider> | ||
| ) | ||
| } | ||
|
|
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| const AnimationContainer = styled.View({ overflow: 'hidden' }) | ||
|
|
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| export const useMovieCalendar = (): MovieCalendarContextType => { | ||
| const context = useContext(MovieCalendarContext) | ||
| if (context === undefined) { | ||
| throw new Error('useMovieCalendar must be used within a MovieCalendarProvider') | ||
| } | ||
| return context | ||
| } |
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