1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
|
import React from 'react'
import {FlatList, View} from 'react-native'
import {useFocusEffect, useIsFocused} from '@react-navigation/native'
import {observer} from 'mobx-react-lite'
import useAppState from 'react-native-appstate-hook'
import {NativeStackScreenProps, HomeTabNavigatorParams} from 'lib/routes/types'
import {PostsFeedModel} from 'state/models/feeds/posts'
import {withAuthRequired} from 'view/com/auth/withAuthRequired'
import {useTabFocusEffect} from 'lib/hooks/useTabFocusEffect'
import {Feed} from '../com/posts/Feed'
import {FollowingEmptyState} from 'view/com/posts/FollowingEmptyState'
import {LoadLatestBtn} from '../com/util/load-latest/LoadLatestBtn'
import {FeedsTabBar} from '../com/pager/FeedsTabBar'
import {Pager, RenderTabBarFnProps} from 'view/com/pager/Pager'
import {FAB} from '../com/util/fab/FAB'
import {useStores} from 'state/index'
import {s} from 'lib/styles'
import {useOnMainScroll} from 'lib/hooks/useOnMainScroll'
import {useAnalytics} from 'lib/analytics'
import {ComposeIcon2} from 'lib/icons'
import {isDesktopWeb} from 'platform/detection'
const HEADER_OFFSET = isDesktopWeb ? 50 : 40
const POLL_FREQ = 30e3 // 30sec
type Props = NativeStackScreenProps<HomeTabNavigatorParams, 'Home'>
export const HomeScreen = withAuthRequired((_opts: Props) => {
const store = useStores()
const [selectedPage, setSelectedPage] = React.useState(0)
const algoFeed = React.useMemo(() => {
const feed = new PostsFeedModel(store, 'goodstuff', {})
feed.setup()
return feed
}, [store])
useFocusEffect(
React.useCallback(() => {
store.shell.setMinimalShellMode(false)
store.shell.setIsDrawerSwipeDisabled(selectedPage > 0)
return () => {
store.shell.setIsDrawerSwipeDisabled(false)
}
}, [store, selectedPage]),
)
const onPageSelected = React.useCallback(
(index: number) => {
store.shell.setMinimalShellMode(false)
setSelectedPage(index)
store.shell.setIsDrawerSwipeDisabled(index > 0)
},
[store],
)
const onPressSelected = React.useCallback(() => {
store.emitScreenSoftReset()
}, [store])
const renderTabBar = React.useCallback(
(props: RenderTabBarFnProps) => {
return (
<FeedsTabBar
{...props}
testID="homeScreenFeedTabs"
onPressSelected={onPressSelected}
/>
)
},
[onPressSelected],
)
const renderFollowingEmptyState = React.useCallback(() => {
return <FollowingEmptyState />
}, [])
const initialPage = store.me.followsCount === 0 ? 1 : 0
return (
<Pager
testID="homeScreen"
onPageSelected={onPageSelected}
renderTabBar={renderTabBar}
tabBarPosition="top"
initialPage={initialPage}>
<FeedPage
key="1"
testID="followingFeedPage"
isPageFocused={selectedPage === 0}
feed={store.me.mainFeed}
renderEmptyState={renderFollowingEmptyState}
/>
<FeedPage
key="2"
testID="whatshotFeedPage"
isPageFocused={selectedPage === 1}
feed={algoFeed}
/>
</Pager>
)
})
const FeedPage = observer(
({
testID,
isPageFocused,
feed,
renderEmptyState,
}: {
testID?: string
feed: PostsFeedModel
isPageFocused: boolean
renderEmptyState?: () => JSX.Element
}) => {
const store = useStores()
const onMainScroll = useOnMainScroll(store)
const {screen, track} = useAnalytics()
const scrollElRef = React.useRef<FlatList>(null)
const {appState} = useAppState({
onForeground: () => doPoll(true),
})
const isScreenFocused = useIsFocused()
const doPoll = React.useCallback(
(knownActive = false) => {
if (
(!knownActive && appState !== 'active') ||
!isScreenFocused ||
!isPageFocused
) {
return
}
if (feed.isLoading) {
return
}
store.log.debug('HomeScreen: Polling for new posts')
feed.checkForLatest()
},
[appState, isScreenFocused, isPageFocused, store, feed],
)
const scrollToTop = React.useCallback(() => {
scrollElRef.current?.scrollToOffset({offset: -HEADER_OFFSET})
}, [scrollElRef])
const onSoftReset = React.useCallback(() => {
if (isPageFocused) {
feed.refresh()
scrollToTop()
}
}, [isPageFocused, scrollToTop, feed])
// fires when screen is activated/deactivated
// - set up polls/listeners, update content
useFocusEffect(
React.useCallback(() => {
const softResetSub = store.onScreenSoftReset(onSoftReset)
const feedCleanup = feed.registerListeners()
const pollInterval = setInterval(doPoll, POLL_FREQ)
screen('Feed')
store.log.debug('HomeScreen: Updating feed')
if (feed.hasContent) {
feed.update()
}
return () => {
clearInterval(pollInterval)
softResetSub.remove()
feedCleanup()
}
}, [store, doPoll, onSoftReset, screen, feed]),
)
// fires when tab is actived/deactivated
// - check for latest
useTabFocusEffect(
'Home',
React.useCallback(
isInside => {
if (!isPageFocused || !isInside) {
return
}
feed.checkForLatest()
},
[isPageFocused, feed],
),
)
// fires when page within screen is activated/deactivated
// - check for latest
React.useEffect(() => {
if (isPageFocused && isScreenFocused) {
feed.checkForLatest()
}
}, [isPageFocused, isScreenFocused, feed])
const onPressCompose = React.useCallback(() => {
track('HomeScreen:PressCompose')
store.shell.openComposer({})
}, [store, track])
const onPressTryAgain = React.useCallback(() => {
feed.refresh()
}, [feed])
const onPressLoadLatest = React.useCallback(() => {
scrollToTop()
feed.refresh()
}, [feed, scrollToTop])
return (
<View testID={testID} style={s.h100pct}>
<Feed
testID={testID ? `${testID}-feed` : undefined}
key="default"
feed={feed}
scrollElRef={scrollElRef}
showPostFollowBtn
onPressTryAgain={onPressTryAgain}
onScroll={onMainScroll}
renderEmptyState={renderEmptyState}
headerOffset={HEADER_OFFSET}
/>
{feed.hasNewLatest && !feed.isRefreshing && (
<LoadLatestBtn onPress={onPressLoadLatest} label="posts" />
)}
<FAB
testID="composeFAB"
onPress={onPressCompose}
icon={<ComposeIcon2 strokeWidth={1.5} size={29} style={s.white} />}
accessibilityRole="button"
accessibilityLabel="Compose"
accessibilityHint="Opens post composer"
/>
</View>
)
},
)
|
