Deeplink: handle notification click to open a room.

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

@@ -33,6 +33,7 @@ import com.bumble.appyx.core.plugin.plugins
 import com.bumble.appyx.navmodel.backstack.BackStack
 import com.bumble.appyx.navmodel.backstack.operation.push
 import com.bumble.appyx.navmodel.backstack.operation.replace
+import com.bumble.appyx.navmodel.backstack.operation.singleTop
 import dagger.assisted.Assisted
 import dagger.assisted.AssistedInject
 import io.element.android.anvilannotations.ContributesNode
@@ -56,10 +57,7 @@ import io.element.android.libraries.matrix.api.core.RoomId
 import io.element.android.libraries.matrix.ui.di.MatrixUIBindings
 import io.element.android.services.appnavstate.api.AppNavigationStateService
 import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.runBlocking
 import kotlinx.parcelize.Parcelize
-import kotlin.coroutines.coroutineContext
 
 @ContributesNode(AppScope::class)
 class LoggedInFlowNode @AssistedInject constructor(
@@ -217,6 +215,19 @@ class LoggedInFlowNode @AssistedInject constructor(
         }
     }
 
+    suspend fun attachRoot(): Node {
+        return attachChild {
+            backstack.singleTop(NavTarget.RoomList)
+        }
+    }
+
+    suspend fun attachRoom(roomId: RoomId): RoomFlowNode {
+        return attachChild {
+            backstack.singleTop(NavTarget.RoomList)
+            backstack.push(NavTarget.Room(roomId))
+        }
+    }
+
     @Composable
     override fun View(modifier: Modifier) {
         Box(modifier = modifier) {

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

@@ -18,7 +18,6 @@ package io.element.android.appnav
 
 import android.os.Parcelable
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.DisposableEffect
 import androidx.compose.ui.Modifier
 import com.bumble.appyx.core.composable.Children
 import com.bumble.appyx.core.lifecycle.subscribe

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

@@ -17,6 +17,7 @@
 package io.element.android.appnav
 
 import android.app.Activity
+import android.content.Intent
 import android.os.Parcelable
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.fillMaxSize
@@ -45,6 +46,8 @@ import io.element.android.features.rageshake.api.bugreport.BugReportEntryPoint
 import io.element.android.libraries.architecture.BackstackNode
 import io.element.android.libraries.architecture.animation.rememberDefaultTransitionHandler
 import io.element.android.libraries.architecture.createNode
+import io.element.android.libraries.deeplink.DeeplinkData
+import io.element.android.libraries.deeplink.DeeplinkParser
 import io.element.android.libraries.designsystem.theme.components.CircularProgressIndicator
 import io.element.android.libraries.di.AppScope
 import io.element.android.libraries.matrix.api.auth.MatrixAuthenticationService
@@ -65,6 +68,7 @@ class RootFlowNode @AssistedInject constructor(
     private val matrixClientsHolder: MatrixClientsHolder,
     private val presenter: RootPresenter,
     private val bugReportEntryPoint: BugReportEntryPoint,
+    private val deeplinkParser: DeeplinkParser,
 ) :
     BackstackNode<RootFlowNode.NavTarget>(
         backstack = BackStack(
@@ -207,4 +211,30 @@ class RootFlowNode @AssistedInject constructor(
             CircularProgressIndicator()
         }
     }
+
+    suspend fun handleIntent(intent: Intent) {
+        deeplinkParser.getFromIntent(intent)
+            ?.let { navigateTo(it) }
+    }
+
+    private suspend fun navigateTo(deeplinkData: DeeplinkData) {
+        Timber.d("Navigating to $deeplinkData")
+        attachSession(deeplinkData.sessionId)
+            .apply {
+                val roomId = deeplinkData.roomId
+                if (roomId == null) {
+                    // In case room is not provided, ensure the app navigate back to the room list
+                    attachRoot()
+                } else {
+                    attachRoom(roomId)
+                    // TODO .attachThread(deeplinkData.threadId)
+                }
+            }
+    }
+
+    private suspend fun attachSession(sessionId: SessionId): LoggedInFlowNode {
+        return attachChild {
+            backstack.newRoot(NavTarget.LoggedInFlow(sessionId))
+        }
+    }
 }