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import React from 'react'
import {Pressable, TextInput, useWindowDimensions, View} from 'react-native'
import {
useFocusedInputHandler,
useReanimatedKeyboardAnimation,
} from 'react-native-keyboard-controller'
import Animated, {
measure,
useAnimatedProps,
useAnimatedRef,
useAnimatedStyle,
useSharedValue,
} from 'react-native-reanimated'
import {useSafeAreaInsets} from 'react-native-safe-area-context'
import {msg} from '@lingui/macro'
import {useLingui} from '@lingui/react'
import Graphemer from 'graphemer'
import {HITSLOP_10, MAX_DM_GRAPHEME_LENGTH} from '#/lib/constants'
import {useHaptics} from '#/lib/haptics'
import {
useMessageDraft,
useSaveMessageDraft,
} from '#/state/messages/message-drafts'
import {isIOS} from 'platform/detection'
import * as Toast from '#/view/com/util/Toast'
import {atoms as a, useTheme} from '#/alf'
import {useSharedInputStyles} from '#/components/forms/TextField'
import {PaperPlane_Stroke2_Corner0_Rounded as PaperPlane} from '#/components/icons/PaperPlane'
const AnimatedTextInput = Animated.createAnimatedComponent(TextInput)
export function MessageInput({
onSendMessage,
}: {
onSendMessage: (message: string) => void
}) {
const {_} = useLingui()
const t = useTheme()
const playHaptic = useHaptics()
const {getDraft, clearDraft} = useMessageDraft()
// Input layout
const {top: topInset} = useSafeAreaInsets()
const {height: windowHeight} = useWindowDimensions()
const {height: keyboardHeight} = useReanimatedKeyboardAnimation()
const maxHeight = useSharedValue<undefined | number>(undefined)
const isInputScrollable = useSharedValue(false)
const inputStyles = useSharedInputStyles()
const [isFocused, setIsFocused] = React.useState(false)
const [message, setMessage] = React.useState(getDraft)
const inputRef = useAnimatedRef<TextInput>()
useSaveMessageDraft(message)
const onSubmit = React.useCallback(() => {
if (message.trim() === '') {
return
}
if (new Graphemer().countGraphemes(message) > MAX_DM_GRAPHEME_LENGTH) {
Toast.show(_(msg`Message is too long`))
return
}
clearDraft()
onSendMessage(message.trimEnd())
playHaptic()
setMessage('')
// Pressing the send button causes the text input to lose focus, so we need to
// re-focus it after sending
setTimeout(() => {
inputRef.current?.focus()
}, 100)
}, [message, clearDraft, onSendMessage, playHaptic, _, inputRef])
useFocusedInputHandler(
{
onChangeText: () => {
'worklet'
const measurement = measure(inputRef)
if (!measurement) return
const max = windowHeight - -keyboardHeight.value - topInset - 150
const availableSpace = max - measurement.height
maxHeight.value = max
isInputScrollable.value = availableSpace < 30
},
},
[windowHeight, topInset],
)
const animatedStyle = useAnimatedStyle(() => ({
maxHeight: maxHeight.value,
}))
const animatedProps = useAnimatedProps(() => ({
scrollEnabled: isInputScrollable.value,
}))
return (
<View style={[a.px_md, a.pb_sm, a.pt_xs]}>
<View
style={[
a.w_full,
a.flex_row,
t.atoms.bg_contrast_25,
{
padding: a.p_sm.padding - 2,
paddingLeft: a.p_md.padding - 2,
borderWidth: 2,
borderRadius: 23,
borderColor: 'transparent',
},
isFocused && inputStyles.chromeFocus,
]}>
<AnimatedTextInput
accessibilityLabel={_(msg`Message input field`)}
accessibilityHint={_(msg`Type your message here`)}
placeholder={_(msg`Write a message`)}
placeholderTextColor={t.palette.contrast_500}
value={message}
multiline={true}
onChangeText={setMessage}
style={[
a.flex_1,
a.text_md,
a.px_sm,
t.atoms.text,
{paddingBottom: isIOS ? 5 : 0},
animatedStyle,
]}
keyboardAppearance={t.name === 'light' ? 'light' : 'dark'}
blurOnSubmit={false}
onFocus={() => setIsFocused(true)}
onBlur={() => setIsFocused(false)}
ref={inputRef}
hitSlop={HITSLOP_10}
animatedProps={animatedProps}
/>
<Pressable
accessibilityRole="button"
accessibilityLabel={_(msg`Send message`)}
accessibilityHint=""
hitSlop={HITSLOP_10}
style={[
a.rounded_full,
a.align_center,
a.justify_center,
{height: 30, width: 30, backgroundColor: t.palette.primary_500},
]}
onPress={onSubmit}>
<PaperPlane fill={t.palette.white} style={[a.relative, {left: 1}]} />
</Pressable>
</View>
</View>
)
}
|
