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import React, {useRef} from 'react'
import {observer} from 'mobx-react-lite'
import {
GestureResponderEvent,
SafeAreaView,
StyleSheet,
Text,
TouchableOpacity,
View,
} from 'react-native'
import {ScreenContainer, Screen} from 'react-native-screens'
import {FontAwesomeIcon} from '@fortawesome/react-native-fontawesome'
import {IconProp} from '@fortawesome/fontawesome-svg-core'
import {useStores} from '../../../state'
import {NavigationModel} from '../../../state/models/navigation'
import {match, MatchResult} from '../../routes'
import {TabsSelectorModal} from './tabs-selector'
import {createBackMenu, createForwardMenu} from './history-menu'
import {colors} from '../../lib/styles'
const Location = ({icon, title}: {icon: IconProp; title?: string}) => {
return (
<TouchableOpacity style={styles.location}>
{title ? (
<FontAwesomeIcon size={16} style={styles.locationIcon} icon={icon} />
) : (
<FontAwesomeIcon
size={16}
style={styles.locationIconLight}
icon="magnifying-glass"
/>
)}
<Text style={title ? styles.locationText : styles.locationTextLight}>
{title || 'Search'}
</Text>
</TouchableOpacity>
)
}
const Btn = ({
icon,
inactive,
onPress,
onLongPress,
}: {
icon: IconProp
inactive?: boolean
onPress?: (event: GestureResponderEvent) => void
onLongPress?: (event: GestureResponderEvent) => void
}) => {
if (inactive) {
return (
<View style={styles.ctrl}>
<FontAwesomeIcon
size={18}
style={[styles.ctrlIcon, styles.inactive]}
icon={icon}
/>
</View>
)
}
return (
<TouchableOpacity
style={styles.ctrl}
onPress={onPress}
onLongPress={onLongPress}>
<FontAwesomeIcon size={18} style={styles.ctrlIcon} icon={icon} />
</TouchableOpacity>
)
}
export const MobileShell: React.FC = observer(() => {
const stores = useStores()
const tabSelectorRef = useRef<{open: () => void}>()
const screenRenderDesc = constructScreenRenderDesc(stores.nav)
const onPressBack = () => stores.nav.tab.goBack()
const onPressForward = () => stores.nav.tab.goForward()
const onPressHome = () => stores.nav.navigate('/')
const onPressNotifications = () => stores.nav.navigate('/notifications')
const onPressTabs = () => tabSelectorRef.current?.open()
const onLongPressBack = () => createBackMenu(stores.nav.tab)
const onLongPressForward = () => createForwardMenu(stores.nav.tab)
const onNewTab = () => stores.nav.newTab('/')
const onChangeTab = (tabIndex: number) => stores.nav.setActiveTab(tabIndex)
const onCloseTab = (tabIndex: number) => stores.nav.closeTab(tabIndex)
return (
<View style={styles.outerContainer}>
<View style={styles.topBar}>
<Location
icon={screenRenderDesc.icon}
title={stores.nav.tab.current.title}
/>
</View>
<SafeAreaView style={styles.innerContainer}>
<ScreenContainer>
{screenRenderDesc.screens.map(({Com, params, key, activityState}) => (
<Screen
key={key}
style={styles.screen}
activityState={activityState}>
<Com params={params} />
</Screen>
))}
</ScreenContainer>
</SafeAreaView>
<View style={styles.bottomBar}>
<Btn
icon="angle-left"
inactive={!stores.nav.tab.canGoBack}
onPress={onPressBack}
onLongPress={onLongPressBack}
/>
<Btn
icon="angle-right"
inactive={!stores.nav.tab.canGoForward}
onPress={onPressForward}
onLongPress={onLongPressForward}
/>
<Btn icon="house" onPress={onPressHome} />
<Btn icon={['far', 'bell']} onPress={onPressNotifications} />
<Btn icon={['far', 'clone']} onPress={onPressTabs} />
</View>
<TabsSelectorModal
ref={tabSelectorRef}
tabs={stores.nav.tabs}
currentTabIndex={stores.nav.tabIndex}
onNewTab={onNewTab}
onChangeTab={onChangeTab}
onCloseTab={onCloseTab}
/>
</View>
)
})
/**
* This method produces the information needed by the shell to
* render the current screens with screen-caching behaviors.
*/
type ScreenRenderDesc = MatchResult & {key: string; activityState: 0 | 1 | 2}
function constructScreenRenderDesc(nav: NavigationModel): {
icon: IconProp
screens: ScreenRenderDesc[]
} {
let icon: IconProp = 'magnifying-glass'
let screens: ScreenRenderDesc[] = []
for (const tab of nav.tabs) {
const tabScreens = [
...tab.getBackList(5),
Object.assign({}, tab.current, {index: tab.index}),
]
const parsedTabScreens = tabScreens.map(screen => {
const isCurrent = nav.isCurrentScreen(tab.id, screen.index)
const matchRes = match(screen.url)
if (isCurrent) {
icon = matchRes.icon
}
return Object.assign(matchRes, {
key: `t${tab.id}-s${screen.index}`,
activityState: isCurrent ? 2 : 0,
})
})
screens = screens.concat(parsedTabScreens)
}
return {
icon,
screens,
}
}
const styles = StyleSheet.create({
outerContainer: {
height: '100%',
},
innerContainer: {
flex: 1,
},
screen: {
backgroundColor: colors.gray1,
},
topBar: {
flexDirection: 'row',
backgroundColor: colors.white,
borderBottomWidth: 1,
borderBottomColor: colors.gray2,
paddingLeft: 10,
paddingRight: 10,
paddingTop: 40,
paddingBottom: 5,
},
location: {
flex: 1,
flexDirection: 'row',
borderRadius: 4,
paddingLeft: 10,
paddingRight: 6,
paddingTop: 6,
paddingBottom: 6,
backgroundColor: '#F8F3F3',
},
locationIcon: {
color: colors.pink3,
marginRight: 8,
},
locationIconLight: {
color: colors.gray3,
marginRight: 8,
},
locationText: {
color: colors.black,
},
locationTextLight: {
color: colors.gray4,
},
bottomBar: {
flexDirection: 'row',
backgroundColor: colors.white,
borderTopWidth: 1,
borderTopColor: colors.gray2,
paddingLeft: 5,
paddingRight: 15,
paddingBottom: 20,
},
ctrl: {
flex: 1,
paddingTop: 15,
paddingBottom: 15,
},
ctrlIcon: {
marginLeft: 'auto',
marginRight: 'auto',
},
inactive: {
color: colors.gray3,
},
})
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