Implement autocomplete UI in composer
parent
9010078489
commit
35556a84b2
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@ -1,8 +1,9 @@
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import React, {useState} from 'react'
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import React, {useMemo, useState} from 'react'
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import {StyleSheet, Text, TouchableOpacity, View} from 'react-native'
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import {BottomSheetTextInput} from '@gorhom/bottom-sheet'
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import LinearGradient from 'react-native-linear-gradient'
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import {FontAwesomeIcon} from '@fortawesome/react-native-fontawesome'
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import {Autocomplete} from './composer/Autocomplete'
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import Toast from '../util/Toast'
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import ProgressCircle from '../util/ProgressCircle'
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import {useStores} from '../../../state'
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@ -14,16 +15,27 @@ const WARNING_TEXT_LENGTH = 200
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const DANGER_TEXT_LENGTH = 255
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export const snapPoints = ['100%']
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const DEBUG_USERNAMES = ['alice.com', 'bob.com', 'carla.com']
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export function Component({replyTo}: {replyTo?: string}) {
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const store = useStores()
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const [text, setText] = useState('')
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const [error, setError] = useState('')
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const [text, setText] = useState('')
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const [autocompleteOptions, setAutocompleteOptions] = useState<string[]>([])
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const onChangeText = (newText: string) => {
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if (newText.length > MAX_TEXT_LENGTH) {
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setText(newText.slice(0, MAX_TEXT_LENGTH))
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} else {
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setText(newText)
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newText = newText.slice(0, MAX_TEXT_LENGTH)
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}
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setText(newText)
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const prefix = extractTextAutocompletePrefix(newText)
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if (typeof prefix === 'string') {
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setAutocompleteOptions(
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DEBUG_USERNAMES.filter(name => name.includes(prefix)),
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)
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} else if (autocompleteOptions) {
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setAutocompleteOptions([])
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}
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}
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const onPressCancel = () => {
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@ -53,6 +65,10 @@ export function Component({replyTo}: {replyTo?: string}) {
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hideOnPress: true,
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})
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}
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const onSelectAutocompleteItem = (item: string) => {
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setText(replaceTextAutocompletePrefix(text, item))
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setAutocompleteOptions([])
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}
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const progressColor =
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text.length > DANGER_TEXT_LENGTH
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@ -61,6 +77,19 @@ export function Component({replyTo}: {replyTo?: string}) {
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? '#f7c600'
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: undefined
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const textDecorated = useMemo(() => {
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return (text || '').split(/(\s)/g).map((item, i) => {
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if (/@[a-zA-Z0-9]+/g.test(item)) {
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return (
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<Text key={i} style={{color: colors.blue3}}>
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{item}
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</Text>
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)
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}
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return item
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})
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}, [text])
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return (
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<View style={styles.outer}>
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<View style={styles.topbar}>
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@ -95,10 +124,10 @@ export function Component({replyTo}: {replyTo?: string}) {
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scrollEnabled
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autoFocus
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onChangeText={(text: string) => onChangeText(text)}
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value={text}
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placeholder={replyTo ? 'Write your reply' : "What's new?"}
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style={styles.textInput}
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/>
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style={styles.textInput}>
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{textDecorated}
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</BottomSheetTextInput>
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<View style={[s.flexRow, s.pt10, s.pb10, s.pr5]}>
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<View style={s.flex1} />
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<View>
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@ -108,10 +137,27 @@ export function Component({replyTo}: {replyTo?: string}) {
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/>
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</View>
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</View>
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<Autocomplete
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active={autocompleteOptions.length > 0}
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items={autocompleteOptions}
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onSelect={onSelectAutocompleteItem}
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/>
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</View>
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)
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}
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const atPrefixRegex = /@([\S]*)$/i
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function extractTextAutocompletePrefix(text: string) {
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const match = atPrefixRegex.exec(text)
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if (match) {
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return match[1]
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}
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return undefined
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}
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function replaceTextAutocompletePrefix(text: string, item: string) {
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return text.replace(atPrefixRegex, `@${item} `)
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}
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const styles = StyleSheet.create({
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outer: {
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flexDirection: 'column',
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@ -0,0 +1,76 @@
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import React, {useEffect} from 'react'
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import {
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useWindowDimensions,
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Text,
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TouchableOpacity,
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StyleSheet,
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} from 'react-native'
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import Animated, {
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useSharedValue,
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useAnimatedStyle,
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withTiming,
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interpolate,
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} from 'react-native-reanimated'
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import {colors} from '../../../lib/styles'
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export function Autocomplete({
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active,
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items,
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onSelect,
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}: {
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active: boolean
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items: string[]
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onSelect: (item: string) => void
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}) {
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const winDim = useWindowDimensions()
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const positionInterp = useSharedValue<number>(0)
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useEffect(() => {
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if (active) {
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positionInterp.value = withTiming(1, {duration: 250})
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} else {
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positionInterp.value = withTiming(0, {duration: 250})
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}
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}, [positionInterp, active])
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const topAnimStyle = useAnimatedStyle(() => ({
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top: interpolate(
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positionInterp.value,
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[0, 1.0],
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[winDim.height, winDim.height / 4],
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),
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}))
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return (
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<Animated.View style={[styles.outer, topAnimStyle]}>
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{items.map((item, i) => (
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<TouchableOpacity
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key={i}
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style={styles.item}
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onPress={() => onSelect(item)}>
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<Text style={styles.itemText}>@{item}</Text>
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</TouchableOpacity>
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))}
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</Animated.View>
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)
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}
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const styles = StyleSheet.create({
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outer: {
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position: 'absolute',
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left: 0,
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right: 0,
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bottom: 0,
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backgroundColor: colors.white,
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borderTopWidth: 1,
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borderTopColor: colors.gray2,
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},
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item: {
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borderBottomWidth: 1,
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borderBottomColor: colors.gray1,
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paddingVertical: 16,
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paddingHorizontal: 16,
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},
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itemText: {
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fontSize: 16,
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},
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})
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