bsky-app/src/view/com/composer/ComposePost.tsx
Paul Frazee 9230d52ff5 Improve link meta fetching for bsky links (#54)
* Add share dropdown item to profiles

* Temporary improvement for links to content on the network

* Enlarge text slightly on embed cards
2023-01-19 12:30:28 -06:00

541 lines
15 KiB
TypeScript

import React, {useEffect, useMemo, useRef, useState} from 'react'
import {observer} from 'mobx-react-lite'
import {
ActivityIndicator,
KeyboardAvoidingView,
Platform,
SafeAreaView,
ScrollView,
StyleSheet,
TextInput,
TouchableOpacity,
TouchableWithoutFeedback,
View,
} from 'react-native'
import LinearGradient from 'react-native-linear-gradient'
import {FontAwesomeIcon} from '@fortawesome/react-native-fontawesome'
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'
// @ts-ignore no type definition -prf
import ProgressCircle from 'react-native-progress/Circle'
// @ts-ignore no type definition -prf
import ProgressPie from 'react-native-progress/Pie'
import {TextLink} from '../util/Link'
import {UserAvatar} from '../util/UserAvatar'
import {useStores} from '../../../state'
import * as apilib from '../../../state/lib/api'
import {ComposerOpts} from '../../../state/models/shell-ui'
import {s, colors, gradients} from '../../lib/styles'
import {detectLinkables, extractEntities} from '../../../lib/strings'
import {getLinkMeta} from '../../../lib/link-meta'
import {downloadAndResize} from '../../../lib/images'
import {UserLocalPhotosModel} from '../../../state/models/user-local-photos'
import {PhotoCarouselPicker} from './PhotoCarouselPicker'
import {SelectedPhoto} from './SelectedPhoto'
import {usePalette} from '../../lib/hooks/usePalette'
const MAX_TEXT_LENGTH = 256
const DANGER_TEXT_LENGTH = MAX_TEXT_LENGTH
const HITSLOP = {left: 10, top: 10, right: 10, bottom: 10}
export const ComposePost = observer(function ComposePost({
replyTo,
imagesOpen,
onPost,
onClose,
}: {
replyTo?: ComposerOpts['replyTo']
imagesOpen?: ComposerOpts['imagesOpen']
onPost?: ComposerOpts['onPost']
onClose: () => void
}) {
const pal = usePalette('default')
const store = useStores()
const textInput = useRef<TextInput>(null)
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 [attemptedExtLinks, setAttemptedExtLinks] = useState<string[]>([])
const [isSelectingPhotos, setIsSelectingPhotos] = useState(
imagesOpen || false,
)
const [selectedPhotos, setSelectedPhotos] = useState<string[]>([])
// Using default import (React.use...) instead of named import (use...) to be able to mock store's data in jest environment
const autocompleteView = React.useMemo<UserAutocompleteViewModel>(
() => new UserAutocompleteViewModel(store),
[store],
)
const localPhotos = React.useMemo<UserLocalPhotosModel>(
() => new UserLocalPhotosModel(store),
[store],
)
// initial setup
useEffect(() => {
autocompleteView.setup()
localPhotos.setup()
}, [autocompleteView, localPhotos])
// 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: 250,
height: 250,
mode: 'contain',
maxSize: 100000,
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
})
}
}, [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 = () => {
if (isSelectingPhotos) {
setIsSelectingPhotos(false)
} else if (selectedPhotos.length < 4) {
setIsSelectingPhotos(true)
}
}
const onSelectPhotos = (photos: string[]) => {
setSelectedPhotos(photos)
if (photos.length >= 4) {
setIsSelectingPhotos(false)
}
}
const onChangeText = (newText: string) => {
setText(newText)
const prefix = extractTextAutocompletePrefix(newText)
if (typeof prefix === 'string') {
autocompleteView.setActive(true)
autocompleteView.setPrefix(prefix)
} else {
autocompleteView.setActive(false)
}
if (!extLink && /\s$/.test(newText)) {
const ents = extractEntities(newText)
const entLink = ents
?.filter(
ent => ent.type === 'link' && !attemptedExtLinks.includes(ent.value),
)
.pop() // use last
if (entLink) {
setExtLink({
uri: entLink.value,
isLoading: true,
})
setAttemptedExtLinks([...attemptedExtLinks, entLink.value])
}
}
}
const onPressCancel = () => {
onClose()
}
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,
)
} catch (e: any) {
setError(e.message)
setIsProcessing(false)
return
}
store.me.mainFeed.loadLatest()
onPost?.()
onClose()
Toast.show(`Your ${replyTo ? 'reply' : 'post'} has been published`)
}
const onSelectAutocompleteItem = (item: string) => {
setText(replaceTextAutocompletePrefix(text, item))
autocompleteView.setActive(false)
}
const canPost = text.length <= MAX_TEXT_LENGTH
const progressColor = text.length > DANGER_TEXT_LENGTH ? '#e60000' : undefined
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 v
} else {
return (
<Text key={i++} style={[pal.link, styles.textInputFormatting]}>
{v.link}
</Text>
)
}
})
}, [text])
return (
<KeyboardAvoidingView
testID="composePostView"
behavior={Platform.OS === 'ios' ? 'padding' : 'height'}
style={[pal.view, 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"
ref={textInput}
multiline
scrollEnabled
onChangeText={(text: string) => onChangeText(text)}
placeholder={selectTextInputPlaceholder}
placeholderTextColor={pal.colors.textLight}
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 &&
localPhotos.photos != null &&
selectedPhotos.length < 4 && (
<PhotoCarouselPicker
selectedPhotos={selectedPhotos}
onSelectPhotos={onSelectPhotos}
localPhotos={localPhotos}
/>
)}
<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}
size={24}
/>
</TouchableOpacity>
<View style={s.flex1} />
<Text style={[s.mr10, {color: progressColor}]}>
{MAX_TEXT_LENGTH - text.length}
</Text>
<View>
{text.length > DANGER_TEXT_LENGTH ? (
<ProgressPie
size={30}
borderWidth={4}
borderColor={progressColor}
color={progressColor}
progress={Math.min(
(text.length - MAX_TEXT_LENGTH) / MAX_TEXT_LENGTH,
1,
)}
/>
) : (
<ProgressCircle
size={30}
borderWidth={1}
borderColor={colors.gray2}
color={progressColor}
progress={text.length / MAX_TEXT_LENGTH}
/>
)}
</View>
</View>
<Autocomplete
active={autocompleteView.isActive}
items={autocompleteView.suggestions}
onSelect={onSelectAutocompleteItem}
/>
</SafeAreaView>
</TouchableWithoutFeedback>
</KeyboardAvoidingView>
)
})
const atPrefixRegex = /@([a-z0-9\.]*)$/i
function extractTextAutocompletePrefix(text: string) {
const match = atPrefixRegex.exec(text)
if (match) {
return match[1]
}
return undefined
}
function replaceTextAutocompletePrefix(text: string, item: string) {
return text.replace(atPrefixRegex, `@${item} `)
}
const styles = StyleSheet.create({
outer: {
flexDirection: 'column',
flex: 1,
padding: 15,
paddingBottom: Platform.OS === 'ios' ? 0 : 50,
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,
},
bottomBar: {
flexDirection: 'row',
paddingVertical: 10,
paddingRight: 5,
alignItems: 'center',
borderTopWidth: 1,
},
})