feat(mobile): add setting to always open web view on launch (#1500)

packages/mobile/src/AppStack.tsx

@@ -1,18 +1,19 @@
 import { AppStateEventType, AppStateType, TabletModeChangeData } from '@Lib/ApplicationState'
+import { AlwaysOpenWebAppOnLaunchKey } from '@Lib/constants'
 import { useHasEditor, useIsLocked } from '@Lib/SnjsHelperHooks'
 import { ScreenStatus } from '@Lib/StatusManager'
 import { IsDev } from '@Lib/Utils'
-import { CompositeNavigationProp, RouteProp } from '@react-navigation/native'
+import { CompositeNavigationProp, RouteProp, useNavigation } from '@react-navigation/native'
 import { createStackNavigator, StackNavigationProp } from '@react-navigation/stack'
 import { HeaderTitleView } from '@Root/Components/HeaderTitleView'
 import { IoniconsHeaderButton } from '@Root/Components/IoniconsHeaderButton'
 import { Compose } from '@Root/Screens/Compose/Compose'
-import { SCREEN_COMPOSE, SCREEN_NOTES, SCREEN_VIEW_PROTECTED_NOTE } from '@Root/Screens/screens'
+import { SCREEN_COMPOSE, SCREEN_NOTES, SCREEN_VIEW_PROTECTED_NOTE, SCREEN_WEB_APP } from '@Root/Screens/screens'
 import { MainSideMenu } from '@Root/Screens/SideMenu/MainSideMenu'
 import { NoteSideMenu } from '@Root/Screens/SideMenu/NoteSideMenu'
 import { ViewProtectedNote } from '@Root/Screens/ViewProtectedNote/ViewProtectedNote'
 import { Root } from '@Screens/Root'
-import { UuidString } from '@standardnotes/snjs'
+import { ApplicationEvent, StorageValueModes, UuidString } from '@standardnotes/snjs'
 import { ICON_MENU } from '@Style/Icons'
 import { ThemeService } from '@Style/ThemeService'
 import { getDefaultDrawerWidth } from '@Style/Utils'
@@ -123,6 +124,28 @@ export const AppStackComponent = (props: ModalStackNavigationProp<'AppStack'>) =
     [application],
   )
 
+  const navigation = useNavigation<ModalStackNavigationProp<'AppStack'>['navigation']>()
+
+  useEffect(() => {
+    if (!application) {
+      return
+    }
+
+    const removeObserver = application.addEventObserver(async (event) => {
+      if (event === ApplicationEvent.Launched) {
+        const value = (await application.getValue(AlwaysOpenWebAppOnLaunchKey, StorageValueModes.Nonwrapped)) as
+          | boolean
+          | undefined
+        const shouldAlwaysOpenWebAppOnLaunch = value ?? false
+        if (shouldAlwaysOpenWebAppOnLaunch) {
+          navigation.push(SCREEN_WEB_APP)
+        }
+      }
+    })
+
+    return removeObserver
+  }, [application, navigation])
+
   return (
     <DrawerLayout
       ref={drawerRef}