Pin setup with fake lock

appnav/src/main/kotlin/io/element/android/appnav/BackstackExt.kt

@@ -16,6 +16,12 @@
 
 package io.element.android.appnav
 
+import android.content.Context
+import android.content.ContextWrapper
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.BackHandler
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.platform.LocalContext
 import com.bumble.appyx.navmodel.backstack.BackStack
 import com.bumble.appyx.navmodel.backstack.operation.NewRoot
 import com.bumble.appyx.navmodel.backstack.operation.Remove
@@ -41,3 +47,18 @@ fun <T : Any> BackStack<T>.removeLast(element: T) {
     accept(Remove(lastExpectedNavElement.key))
 }
 
+@Composable
+fun FinishActivityBackHandler(enabled: Boolean = true) {
+
+    fun Context.findActivity(): ComponentActivity? = when (this) {
+        is ComponentActivity -> this
+        is ContextWrapper -> baseContext.findActivity()
+        else -> null
+    }
+
+    val context = LocalContext.current
+    BackHandler(enabled = enabled) {
+        context.findActivity()?.finish()
+    }
+}
+

appnav/src/main/kotlin/io/element/android/appnav/LoggedInFlowNode.kt

@@ -50,6 +50,9 @@ import io.element.android.features.ftue.api.state.FtueState
 import io.element.android.features.invitelist.api.InviteListEntryPoint
 import io.element.android.features.networkmonitor.api.NetworkMonitor
 import io.element.android.features.networkmonitor.api.NetworkStatus
+import io.element.android.features.pin.api.PinEntryPoint
+import io.element.android.features.pin.api.PinState
+import io.element.android.features.pin.api.PinStateDataSource
 import io.element.android.features.preferences.api.PreferencesEntryPoint
 import io.element.android.features.roomlist.api.RoomListEntryPoint
 import io.element.android.features.verifysession.api.VerifySessionEntryPoint
@@ -90,6 +93,8 @@ class LoggedInFlowNode @AssistedInject constructor(
     private val networkMonitor: NetworkMonitor,
     private val notificationDrawerManager: NotificationDrawerManager,
     private val ftueState: FtueState,
+    private val pinEntryPoint: PinEntryPoint,
+    private val pinStateDataSource: PinStateDataSource,
     private val matrixClient: MatrixClient,
     snackbarDispatcher: SnackbarDispatcher,
 ) : BackstackNode<LoggedInFlowNode.NavTarget>(
@@ -98,7 +103,7 @@ class LoggedInFlowNode @AssistedInject constructor(
         savedStateMap = buildContext.savedStateMap,
     ),
     permanentNavModel = PermanentNavModel(
-        NavTarget.Permanent,
+        navTargets = setOf(NavTarget.LoggedInPermanent, NavTarget.LockPermanent),
         savedStateMap = buildContext.savedStateMap,
     ),
     buildContext = buildContext,
@@ -130,6 +135,7 @@ class LoggedInFlowNode @AssistedInject constructor(
                 }
             },
             onStop = {
+                pinStateDataSource.lock()
                 //Counterpart startSync is done in observeSyncStateAndNetworkStatus method.
                 coroutineScope.launch {
                     syncService.stopSync()
@@ -167,7 +173,10 @@ class LoggedInFlowNode @AssistedInject constructor(
 
     sealed interface NavTarget : Parcelable {
         @Parcelize
-        data object Permanent : NavTarget
+        data object LoggedInPermanent : NavTarget
+
+        @Parcelize
+        data object LockPermanent : NavTarget
 
         @Parcelize
         data object RoomList : NavTarget
@@ -196,9 +205,12 @@ class LoggedInFlowNode @AssistedInject constructor(
 
     override fun resolve(navTarget: NavTarget, buildContext: BuildContext): Node {
         return when (navTarget) {
-            NavTarget.Permanent -> {
+            NavTarget.LoggedInPermanent -> {
                 createNode<LoggedInNode>(buildContext)
             }
+            NavTarget.LockPermanent -> {
+                pinEntryPoint.nodeBuilder(this, buildContext).build()
+            }
             NavTarget.RoomList -> {
                 val callback = object : RoomListEntryPoint.Callback {
                     override fun onRoomClicked(roomId: RoomId) {
@@ -324,17 +336,24 @@ class LoggedInFlowNode @AssistedInject constructor(
     @Composable
     override fun View(modifier: Modifier) {
         Box(modifier = modifier) {
-            Children(
-                navModel = backstack,
-                modifier = Modifier,
-                // Animate navigation to settings and to a room
-                transitionHandler = rememberDefaultTransitionHandler(),
-            )
-
-            val isFtueDisplayed by ftueState.shouldDisplayFlow.collectAsState()
-
-            if (!isFtueDisplayed) {
-                PermanentChild(permanentNavModel = permanentNavModel, navTarget = NavTarget.Permanent)
+            val pinState by pinStateDataSource.pinState.collectAsState()
+            when (pinState) {
+                PinState.Unlocked -> {
+                    Children(
+                        navModel = backstack,
+                        modifier = Modifier,
+                        // Animate navigation to settings and to a room
+                        transitionHandler = rememberDefaultTransitionHandler(),
+                    )
+                    val isFtueDisplayed by ftueState.shouldDisplayFlow.collectAsState()
+                    if (!isFtueDisplayed) {
+                        PermanentChild(permanentNavModel = permanentNavModel, navTarget = NavTarget.LoggedInPermanent)
+                    }
+                }
+                PinState.Locked -> {
+                    FinishActivityBackHandler()
+                    PermanentChild(permanentNavModel = permanentNavModel, navTarget = NavTarget.LockPermanent)
+                }
             }
         }
     }

appnav/src/main/kotlin/io/element/android/appnav/RootFlowNode.kt

@@ -44,6 +44,7 @@ import io.element.android.appnav.root.RootPresenter
 import io.element.android.appnav.root.RootView
 import io.element.android.features.login.api.oidc.OidcAction
 import io.element.android.features.login.api.oidc.OidcActionFlow
+import io.element.android.features.pin.api.PinEntryPoint
 import io.element.android.features.rageshake.api.bugreport.BugReportEntryPoint
 import io.element.android.libraries.architecture.BackstackNode
 import io.element.android.libraries.architecture.animation.rememberDefaultTransitionHandler

appnav/src/main/kotlin/io/element/android/appnav/loggedin/LoggedInNode.kt

@@ -31,7 +31,10 @@ class LoggedInNode @AssistedInject constructor(
     @Assisted buildContext: BuildContext,
     @Assisted plugins: List<Plugin>,
     private val loggedInPresenter: LoggedInPresenter,
-) : Node(buildContext, plugins = plugins) {
+) : Node(
+    buildContext = buildContext,
+    plugins = plugins
+) {
 
     @Composable
     override fun View(modifier: Modifier) {