Move to expo and react-navigation (#288)

* WIP - adding expo

* WIP - adding expo 2

* Fix tsc

* Finish adding expo

* Disable the 'require cycle' warning

* Tweak plist

* Modify some dependency versions to make expo happy

* Fix icon fill

* Get Web compiling for expo

* 1.7

* Switch to react-navigation in expo2 (#287)

* WIP Switch to react-navigation

* WIP Switch to react-navigation 2

* WIP Switch to react-navigation 3

* Convert all screens to react navigation

* Update BottomBar for react navigation

* Update mobile menu to be react-native drawer

* Fixes to drawer and bottombar

* Factor out some helpers

* Replace the navigation model with react-navigation

* Restructure the shell folder and fix the header positioning

* Restore the error boundary

* Fix tsc

* Implement not-found page

* Remove react-native-gesture-handler (no longer used)

* Handle notifee card presses

* Handle all navigations from the state layer

* Fix drawer behaviors

* Fix two linking issues

* Switch to our react-native-progress fork to fix an svg rendering issue

* Get Web working with react-navigation

* Refactor routes and navigation for a bit more clarity

* Remove dead code

* Rework Web shell to left/right nav to make this easier

* Fix ViewHeader for desktop web

* Hide profileheader back btn on desktop web

* Move the compose button to the left nav

* Implement reply prompt in threads for desktop web

* Composer refactors

* Factor out all platform-specific text input behaviors from the composer

* Small fix

* Update the web build to use tiptap for the composer

* Tune up the mention autocomplete dropdown

* Simplify the default avatar and banner

* Fixes to link cards in web composer

* Fix dropdowns on web

* Tweak load latest on desktop

* Add web beta message and feedback link

* Fix up links in desktop web

1 files changed, 26 insertions, 42 deletions

diff --git a/src/view/screens/Home.tsx b/src/view/screens/Home.tsx
index 42759f7ff..505b1fcfe 100644
--- a/src/view/screens/Home.tsx
+++ b/src/view/screens/Home.tsx
@@ -1,14 +1,15 @@
 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 {ViewHeader} from '../com/util/ViewHeader'
 import {Feed} from '../com/posts/Feed'
 import {LoadLatestBtn} from '../com/util/LoadLatestBtn'
 import {WelcomeBanner} from '../com/util/WelcomeBanner'
 import {FAB} from '../com/util/FAB'
 import {useStores} from 'state/index'
-import {ScreenParams} from '../routes'
 import {s} from 'lib/styles'
 import {useOnMainScroll} from 'lib/hooks/useOnMainScroll'
 import {useAnalytics} from 'lib/analytics'
@@ -16,19 +17,20 @@ import {ComposeIcon2} from 'lib/icons'
 
 const HEADER_HEIGHT = 42
 
-export const Home = observer(function Home({navIdx, visible}: ScreenParams) {
+type Props = NativeStackScreenProps<HomeTabNavigatorParams, 'Home'>
+export const HomeScreen = observer(function Home(_opts: Props) {
   const store = useStores()
   const onMainScroll = useOnMainScroll(store)
   const {screen, track} = useAnalytics()
   const scrollElRef = React.useRef<FlatList>(null)
-  const [wasVisible, setWasVisible] = React.useState<boolean>(false)
   const {appState} = useAppState({
     onForeground: () => doPoll(true),
   })
+  const isFocused = useIsFocused()
 
   const doPoll = React.useCallback(
     (knownActive = false) => {
-      if ((!knownActive && appState !== 'active') || !visible) {
+      if ((!knownActive && appState !== 'active') || !isFocused) {
         return
       }
       if (store.me.mainFeed.isLoading) {
@@ -37,7 +39,7 @@ export const Home = observer(function Home({navIdx, visible}: ScreenParams) {
       store.log.debug('HomeScreen: Polling for new posts')
       store.me.mainFeed.checkForLatest()
     },
-    [appState, visible, store],
+    [appState, isFocused, store],
   )
 
   const scrollToTop = React.useCallback(() => {
@@ -46,53 +48,35 @@ export const Home = observer(function Home({navIdx, visible}: ScreenParams) {
     scrollElRef.current?.scrollToOffset({offset: -HEADER_HEIGHT})
   }, [scrollElRef])
 
-  React.useEffect(() => {
-    const softResetSub = store.onScreenSoftReset(scrollToTop)
-    const feedCleanup = store.me.mainFeed.registerListeners()
-    const pollInterval = setInterval(doPoll, 15e3)
-    const cleanup = () => {
-      clearInterval(pollInterval)
-      softResetSub.remove()
-      feedCleanup()
-    }
+  useFocusEffect(
+    React.useCallback(() => {
+      const softResetSub = store.onScreenSoftReset(scrollToTop)
+      const feedCleanup = store.me.mainFeed.registerListeners()
+      const pollInterval = setInterval(doPoll, 15e3)
 
-    // guard to only continue when transitioning from !visible -> visible
-    // TODO is this 100% needed? depends on if useEffect() is getting refired
-    //      for reasons other than `visible` changing -prf
-    if (!visible) {
-      setWasVisible(false)
-      return cleanup
-    } else if (wasVisible) {
-      return cleanup
-    }
-    setWasVisible(true)
+      screen('Feed')
+      store.log.debug('HomeScreen: Updating feed')
+      if (store.me.mainFeed.hasContent) {
+        store.me.mainFeed.update()
+      }
 
-    // just became visible
-    screen('Feed')
-    store.nav.setTitle(navIdx, 'Home')
-    store.log.debug('HomeScreen: Updating feed')
-    if (store.me.mainFeed.hasContent) {
-      store.me.mainFeed.update()
-    }
-    return cleanup
-  }, [
-    visible,
-    store,
-    store.me.mainFeed,
-    navIdx,
-    doPoll,
-    wasVisible,
-    scrollToTop,
-    screen,
-  ])
+      return () => {
+        clearInterval(pollInterval)
+        softResetSub.remove()
+        feedCleanup()
+      }
+    }, [store, doPoll, scrollToTop, screen]),
+  )
 
   const onPressCompose = React.useCallback(() => {
     track('HomeScreen:PressCompose')
     store.shell.openComposer({})
   }, [store, track])
+
   const onPressTryAgain = React.useCallback(() => {
     store.me.mainFeed.refresh()
   }, [store])
+
   const onPressLoadLatest = React.useCallback(() => {
     store.me.mainFeed.refresh()
     scrollToTop()