bsky-app/src/view/com/composer/ComposePost.tsx
2023-02-23 16:02:31 -06:00

600 lines
17 KiB
TypeScript

import React, {useEffect, useMemo, useRef, useState} from 'react'
import {observer} from 'mobx-react-lite'
import {
ActivityIndicator,
KeyboardAvoidingView,
NativeSyntheticEvent,
Platform,
SafeAreaView,
ScrollView,
StyleSheet,
TextInputSelectionChangeEventData,
TouchableOpacity,
TouchableWithoutFeedback,
View,
} from 'react-native'
import LinearGradient from 'react-native-linear-gradient'
import {
FontAwesomeIcon,
FontAwesomeIconStyle,
} from '@fortawesome/react-native-fontawesome'
import {useAnalytics} from 'lib/analytics'
import _isEqual from 'lodash.isequal'
import {UserAutocompleteViewModel} from 'state/models/user-autocomplete-view'
import {Autocomplete} from './Autocomplete'
import {ExternalEmbed} from './ExternalEmbed'
import {Text} from '../util/text/Text'
import * as Toast from '../util/Toast'
import {TextInput, TextInputRef} from './text-input/TextInput'
import {CharProgress} from './char-progress/CharProgress'
import {TextLink} from '../util/Link'
import {UserAvatar} from '../util/UserAvatar'
import {useStores} from 'state/index'
import * as apilib from 'lib/api/index'
import {ComposerOpts} from 'state/models/shell-ui'
import {s, colors, gradients} from 'lib/styles'
import {cleanError} from 'lib/strings/errors'
import {detectLinkables, extractEntities} from 'lib/strings/rich-text-detection'
import {getLinkMeta} from 'lib/link-meta/link-meta'
import {getImageDim, downloadAndResize} from 'lib/media/manip'
import {PhotoCarouselPicker} from './photos/PhotoCarouselPicker'
import {cropAndCompressFlow, pickImagesFlow} from '../../../lib/media/picker'
import {getMentionAt, insertMentionAt} from 'lib/strings/mention-manip'
import {SelectedPhoto} from './SelectedPhoto'
import {usePalette} from 'lib/hooks/usePalette'
import {
POST_IMG_MAX_WIDTH,
POST_IMG_MAX_HEIGHT,
POST_IMG_MAX_SIZE,
} from 'lib/constants'
import {isWeb} from 'platform/detection'
const MAX_TEXT_LENGTH = 256
const HITSLOP = {left: 10, top: 10, right: 10, bottom: 10}
interface Selection {
start: number
end: number
}
export const ComposePost = observer(function ComposePost({
replyTo,
imagesOpen,
onPost,
onClose,
}: {
replyTo?: ComposerOpts['replyTo']
imagesOpen?: ComposerOpts['imagesOpen']
onPost?: ComposerOpts['onPost']
onClose: () => void
}) {
const {track} = useAnalytics()
const pal = usePalette('default')
const store = useStores()
const textInput = useRef<TextInputRef>(null)
const textInputSelection = useRef<Selection>({start: 0, end: 0})
const [isProcessing, setIsProcessing] = useState(false)
const [processingState, setProcessingState] = useState('')
const [error, setError] = useState('')
const [text, setText] = useState('')
const [extLink, setExtLink] = useState<apilib.ExternalEmbedDraft | undefined>(
undefined,
)
const [suggestedExtLinks, setSuggestedExtLinks] = useState<Set<string>>(
new Set(),
)
const [isSelectingPhotos, setIsSelectingPhotos] = useState(
imagesOpen || false,
)
const [selectedPhotos, setSelectedPhotos] = useState<string[]>([])
const autocompleteView = React.useMemo<UserAutocompleteViewModel>(
() => new UserAutocompleteViewModel(store),
[store],
)
// HACK
// there's a bug with @mattermost/react-native-paste-input where if the input
// is focused during unmount, an exception will throw (seems that a blur method isnt implemented)
// manually blurring before closing gets around that
// -prf
const hackfixOnClose = () => {
textInput.current?.blur()
onClose()
}
// initial setup
useEffect(() => {
autocompleteView.setup()
}, [autocompleteView])
// external link metadata-fetch flow
useEffect(() => {
let aborted = false
const cleanup = () => {
aborted = true
}
if (!extLink) {
return cleanup
}
if (!extLink.meta) {
getLinkMeta(store, extLink.uri).then(meta => {
if (aborted) {
return
}
setExtLink({
uri: extLink.uri,
isLoading: !!meta.image,
meta,
})
})
return cleanup
}
if (extLink.isLoading && extLink.meta?.image && !extLink.localThumb) {
downloadAndResize({
uri: extLink.meta.image,
width: 2000,
height: 2000,
mode: 'contain',
maxSize: 1000000,
timeout: 15e3,
})
.catch(() => undefined)
.then(localThumb => {
if (aborted) {
return
}
setExtLink({
...extLink,
isLoading: false, // done
localThumb,
})
})
return cleanup
}
if (extLink.isLoading) {
setExtLink({
...extLink,
isLoading: false, // done
})
}
return cleanup
}, [store, extLink])
useEffect(() => {
// HACK
// wait a moment before focusing the input to resolve some layout bugs with the keyboard-avoiding-view
// -prf
let to: NodeJS.Timeout | undefined
if (textInput.current) {
to = setTimeout(() => {
textInput.current?.focus()
}, 250)
}
return () => {
if (to) {
clearTimeout(to)
}
}
}, [])
const onPressContainer = () => {
textInput.current?.focus()
}
const onPressSelectPhotos = async () => {
track('ComposePost:SelectPhotos')
if (isWeb) {
if (selectedPhotos.length < 4) {
const images = await pickImagesFlow(
store,
4 - selectedPhotos.length,
{width: POST_IMG_MAX_WIDTH, height: POST_IMG_MAX_HEIGHT},
POST_IMG_MAX_SIZE,
)
setSelectedPhotos([...selectedPhotos, ...images])
}
} else {
if (isSelectingPhotos) {
setIsSelectingPhotos(false)
} else if (selectedPhotos.length < 4) {
setIsSelectingPhotos(true)
}
}
}
const onSelectPhotos = (photos: string[]) => {
track('ComposePost:SelectPhotos:Done')
setSelectedPhotos(photos)
if (photos.length >= 4) {
setIsSelectingPhotos(false)
}
}
const onPressAddLinkCard = (uri: string) => {
setExtLink({uri, isLoading: true})
}
const onChangeText = (newText: string) => {
setText(newText)
const prefix = getMentionAt(newText, textInputSelection.current?.start || 0)
if (prefix) {
autocompleteView.setActive(true)
autocompleteView.setPrefix(prefix.value)
} else {
autocompleteView.setActive(false)
}
if (!extLink) {
const ents = extractEntities(newText)?.filter(ent => ent.type === 'link')
const set = new Set(ents ? ents.map(e => e.value) : [])
if (!_isEqual(set, suggestedExtLinks)) {
setSuggestedExtLinks(set)
}
}
}
const onPaste = async (err: string | undefined, uris: string[]) => {
if (err) {
return setError(cleanError(err))
}
if (selectedPhotos.length >= 4) {
return
}
const imgUri = uris.find(uri => /\.(jpe?g|png)$/.test(uri))
if (imgUri) {
let imgDim
try {
imgDim = await getImageDim(imgUri)
} catch (e) {
imgDim = {width: POST_IMG_MAX_WIDTH, height: POST_IMG_MAX_HEIGHT}
}
const finalImgPath = await cropAndCompressFlow(
store,
imgUri,
imgDim,
{width: POST_IMG_MAX_WIDTH, height: POST_IMG_MAX_HEIGHT},
POST_IMG_MAX_SIZE,
)
onSelectPhotos([...selectedPhotos, finalImgPath])
}
}
const onSelectionChange = (
evt: NativeSyntheticEvent<TextInputSelectionChangeEventData>,
) => {
// NOTE we track the input selection using a ref to avoid excessive renders -prf
textInputSelection.current = evt.nativeEvent.selection
}
const onSelectAutocompleteItem = (item: string) => {
setText(insertMentionAt(text, textInputSelection.current?.start || 0, item))
autocompleteView.setActive(false)
}
const onPressCancel = () => hackfixOnClose()
const onPressPublish = async () => {
if (isProcessing) {
return
}
if (text.length > MAX_TEXT_LENGTH) {
return
}
setError('')
if (text.trim().length === 0 && selectedPhotos.length === 0) {
setError('Did you want to say anything?')
return false
}
setIsProcessing(true)
try {
await apilib.post(
store,
text,
replyTo?.uri,
extLink,
selectedPhotos,
autocompleteView.knownHandles,
setProcessingState,
)
track('Create Post', {
imageCount: selectedPhotos.length,
})
} catch (e: any) {
setExtLink({
...extLink,
isLoading: true,
localThumb: undefined,
} as apilib.ExternalEmbedDraft)
setError(cleanError(e.message))
setIsProcessing(false)
return
}
store.me.mainFeed.loadLatest()
onPost?.()
hackfixOnClose()
Toast.show(`Your ${replyTo ? 'reply' : 'post'} has been published`)
}
const canPost = text.length <= MAX_TEXT_LENGTH
const selectTextInputLayout =
selectedPhotos.length !== 0
? styles.textInputLayoutWithPhoto
: styles.textInputLayoutWithoutPhoto
const selectTextInputPlaceholder = replyTo
? 'Write your reply'
: selectedPhotos.length !== 0
? 'Write a comment'
: "What's up?"
const textDecorated = useMemo(() => {
let i = 0
return detectLinkables(text).map(v => {
if (typeof v === 'string') {
return (
<Text key={i++} style={[pal.text, styles.textInputFormatting]}>
{v}
</Text>
)
} else {
return (
<Text key={i++} style={[pal.link, styles.textInputFormatting]}>
{v.link}
</Text>
)
}
})
}, [text, pal.link, pal.text])
return (
<KeyboardAvoidingView
testID="composePostView"
behavior={Platform.OS === 'ios' ? 'padding' : 'height'}
style={styles.outer}>
<TouchableWithoutFeedback onPressIn={onPressContainer}>
<SafeAreaView style={s.flex1}>
<View style={styles.topbar}>
<TouchableOpacity
testID="composerCancelButton"
onPress={onPressCancel}>
<Text style={[pal.link, s.f18]}>Cancel</Text>
</TouchableOpacity>
<View style={s.flex1} />
{isProcessing ? (
<View style={styles.postBtn}>
<ActivityIndicator />
</View>
) : canPost ? (
<TouchableOpacity
testID="composerPublishButton"
onPress={onPressPublish}>
<LinearGradient
colors={[gradients.blueLight.start, gradients.blueLight.end]}
start={{x: 0, y: 0}}
end={{x: 1, y: 1}}
style={styles.postBtn}>
<Text style={[s.white, s.f16, s.bold]}>
{replyTo ? 'Reply' : 'Post'}
</Text>
</LinearGradient>
</TouchableOpacity>
) : (
<View style={[styles.postBtn, pal.btn]}>
<Text style={[pal.textLight, s.f16, s.bold]}>Post</Text>
</View>
)}
</View>
{isProcessing ? (
<View style={[pal.btn, styles.processingLine]}>
<Text style={s.black}>{processingState}</Text>
</View>
) : undefined}
{error !== '' && (
<View style={styles.errorLine}>
<View style={styles.errorIcon}>
<FontAwesomeIcon
icon="exclamation"
style={{color: colors.red4}}
size={10}
/>
</View>
<Text style={[s.red4, s.flex1]}>{error}</Text>
</View>
)}
<ScrollView style={s.flex1}>
{replyTo ? (
<View style={[pal.border, styles.replyToLayout]}>
<UserAvatar
handle={replyTo.author.handle}
displayName={replyTo.author.displayName}
avatar={replyTo.author.avatar}
size={50}
/>
<View style={styles.replyToPost}>
<TextLink
type="xl-medium"
href={`/profile/${replyTo.author.handle}`}
text={replyTo.author.displayName || replyTo.author.handle}
style={[pal.text]}
/>
<Text type="post-text" style={pal.text} numberOfLines={6}>
{replyTo.text}
</Text>
</View>
</View>
) : undefined}
<View
style={[
pal.border,
styles.textInputLayout,
selectTextInputLayout,
]}>
<UserAvatar
handle={store.me.handle || ''}
displayName={store.me.displayName}
avatar={store.me.avatar}
size={50}
/>
<TextInput
testID="composerTextInput"
innerRef={textInput}
onChangeText={(str: string) => onChangeText(str)}
onPaste={onPaste}
onSelectionChange={onSelectionChange}
placeholder={selectTextInputPlaceholder}
style={[
pal.text,
styles.textInput,
styles.textInputFormatting,
]}>
{textDecorated}
</TextInput>
</View>
<SelectedPhoto
selectedPhotos={selectedPhotos}
onSelectPhotos={onSelectPhotos}
/>
{!selectedPhotos.length && extLink && (
<ExternalEmbed
link={extLink}
onRemove={() => setExtLink(undefined)}
/>
)}
</ScrollView>
{isSelectingPhotos && selectedPhotos.length < 4 ? (
<PhotoCarouselPicker
selectedPhotos={selectedPhotos}
onSelectPhotos={onSelectPhotos}
/>
) : !extLink &&
selectedPhotos.length === 0 &&
suggestedExtLinks.size > 0 ? (
<View style={s.mb5}>
{Array.from(suggestedExtLinks).map(url => (
<TouchableOpacity
key={`suggested-${url}`}
style={[pal.borderDark, styles.addExtLinkBtn]}
onPress={() => onPressAddLinkCard(url)}>
<Text>
Add link card: <Text style={pal.link}>{url}</Text>
</Text>
</TouchableOpacity>
))}
</View>
) : null}
<View style={[pal.border, styles.bottomBar]}>
<TouchableOpacity
testID="composerSelectPhotosButton"
onPress={onPressSelectPhotos}
style={[s.pl5]}
hitSlop={HITSLOP}>
<FontAwesomeIcon
icon={['far', 'image']}
style={
(selectedPhotos.length < 4
? pal.link
: pal.textLight) as FontAwesomeIconStyle
}
size={24}
/>
</TouchableOpacity>
<View style={s.flex1} />
<CharProgress count={text.length} />
</View>
<Autocomplete
active={autocompleteView.isActive}
items={autocompleteView.suggestions}
onSelect={onSelectAutocompleteItem}
/>
</SafeAreaView>
</TouchableWithoutFeedback>
</KeyboardAvoidingView>
)
})
const styles = StyleSheet.create({
outer: {
flexDirection: 'column',
flex: 1,
padding: 15,
height: '100%',
},
topbar: {
flexDirection: 'row',
alignItems: 'center',
paddingBottom: 10,
paddingHorizontal: 5,
height: 55,
},
postBtn: {
borderRadius: 20,
paddingHorizontal: 20,
paddingVertical: 6,
},
processingLine: {
borderRadius: 6,
paddingHorizontal: 8,
paddingVertical: 6,
marginBottom: 6,
},
errorLine: {
flexDirection: 'row',
backgroundColor: colors.red1,
borderRadius: 6,
paddingHorizontal: 8,
paddingVertical: 6,
marginVertical: 6,
},
errorIcon: {
borderWidth: 1,
borderColor: colors.red4,
color: colors.red4,
borderRadius: 30,
width: 16,
height: 16,
alignItems: 'center',
justifyContent: 'center',
marginRight: 5,
},
textInputLayoutWithPhoto: {
flexWrap: 'wrap',
},
textInputLayoutWithoutPhoto: {
flex: 1,
},
textInputLayout: {
flexDirection: 'row',
borderTopWidth: 1,
paddingTop: 16,
},
textInput: {
flex: 1,
padding: 5,
marginLeft: 8,
alignSelf: 'flex-start',
},
textInputFormatting: {
fontSize: 18,
letterSpacing: 0.2,
fontWeight: '400',
lineHeight: 23.4, // 1.3*16
},
replyToLayout: {
flexDirection: 'row',
borderTopWidth: 1,
paddingTop: 16,
paddingBottom: 16,
},
replyToPost: {
flex: 1,
paddingLeft: 13,
paddingRight: 8,
},
addExtLinkBtn: {
borderWidth: 1,
borderRadius: 24,
paddingHorizontal: 16,
paddingVertical: 12,
marginBottom: 4,
},
bottomBar: {
flexDirection: 'row',
paddingVertical: 10,
paddingRight: 5,
alignItems: 'center',
borderTopWidth: 1,
},
})