Start CustomTab from Activity

features/login/impl/src/main/kotlin/io/element/android/features/login/impl/LoginFlowNode.kt

@@ -16,9 +16,12 @@
 
 package io.element.android.features.login.impl
 
+import android.app.Activity
 import android.os.Parcelable
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.DisposableEffect
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
 import com.bumble.appyx.core.composable.Children
 import com.bumble.appyx.core.modality.BuildContext
 import com.bumble.appyx.core.node.Node
@@ -54,6 +57,8 @@ class LoginFlowNode @AssistedInject constructor(
     buildContext = buildContext,
     plugins = plugins,
 ) {
+    private var activity: Activity? = null
+
     sealed interface NavTarget : Parcelable {
         @Parcelize
         object Root : NavTarget
@@ -76,7 +81,7 @@ class LoginFlowNode @AssistedInject constructor(
                     override fun onOidcDetails(oidcDetails: OidcDetails) {
                         if (customTabAvailabilityChecker.supportCustomTab()) {
                             // In this case open a Chrome Custom tab
-                            customTabHandler.open(oidcDetails.url)
+                            activity?.let { customTabHandler.open(it, oidcDetails.url) }
                         } else {
                             // Fallback to WebView mode
                             backstack.push(NavTarget.OidcView(oidcDetails))
@@ -96,6 +101,12 @@ class LoginFlowNode @AssistedInject constructor(
 
     @Composable
     override fun View(modifier: Modifier) {
+        activity = LocalContext.current as? Activity
+        DisposableEffect(lifecycle) {
+            onDispose {
+                activity = null
+            }
+        }
         Children(
             navModel = backstack,
             modifier = modifier,

features/login/impl/src/main/kotlin/io/element/android/features/login/impl/oidc/customtab/CustomTabHandler.kt

@@ -16,6 +16,7 @@
 
 package io.element.android.features.login.impl.oidc.customtab
 
+import android.app.Activity
 import android.content.ComponentName
 import android.content.Context
 import android.net.Uri
@@ -71,7 +72,7 @@ class CustomTabHandler @Inject constructor(
         customTabsServiceConnection = null
     }
 
-    fun open(url: String) {
-        context.openUrlInChromeCustomTab(customTabsSession, false, url)
+    fun open(activity: Activity, url: String) {
+        activity.openUrlInChromeCustomTab(customTabsSession, false, url)
     }
 }

features/login/impl/src/main/kotlin/io/element/android/features/login/impl/oidc/customtab/Extensions.kt

@@ -16,9 +16,8 @@
 
 package io.element.android.features.login.impl.oidc.customtab
 
+import android.app.Activity
 import android.content.ActivityNotFoundException
-import android.content.Context
-import android.content.Intent
 import android.net.Uri
 import androidx.browser.customtabs.CustomTabColorSchemeParams
 import androidx.browser.customtabs.CustomTabsIntent
@@ -29,7 +28,7 @@ import androidx.browser.customtabs.CustomTabsSession
  * If several compatible browsers are installed, the user will be proposed to choose one.
  * Ref: https://developer.chrome.com/multidevice/android/customtabs.
  */
-fun Context.openUrlInChromeCustomTab(
+fun Activity.openUrlInChromeCustomTab(
     session: CustomTabsSession?,
     darkTheme: Boolean,
     url: String
@@ -54,9 +53,6 @@ fun Context.openUrlInChromeCustomTab(
             // .setExitAnimations(context, R.anim.enter_fade_in, R.anim.exit_fade_out)
             .apply { session?.let { setSession(it) } }
             .build()
-            .apply {
-                intent.flags += Intent.FLAG_ACTIVITY_NEW_TASK
-            }
             .launchUrl(this, Uri.parse(url))
     } catch (activityNotFoundException: ActivityNotFoundException) {
         // TODO context.toast(R.string.error_no_external_application_found)