Launch the CredentialManager UI from the app context.

This is a temporary version that does not impact public apis. A
follow-up change will be sent out that adds the api changes and properly
launches the UI using an app activity, not just the context.

Test: deployed locally.
Bug: 246564035
Bug: 253156924
Bug: 253156958
Change-Id: I3f43fb7332d58f2baffab7a80c4550d95c67854e

core/java/android/credentials/CredentialManager.java

@@ -22,7 +22,9 @@ import android.annotation.CallbackExecutor;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.SystemService;
+import android.app.PendingIntent;
 import android.content.Context;
+import android.content.IntentSender;
 import android.os.CancellationSignal;
 import android.os.ICancellationSignal;
 import android.os.OutcomeReceiver;
@@ -84,8 +86,11 @@ public final class CredentialManager {
 
         ICancellationSignal cancelRemote = null;
         try {
-            cancelRemote = mService.executeGetCredential(request,
-                    new GetCredentialTransport(executor, callback), mContext.getOpPackageName());
+            cancelRemote = mService.executeGetCredential(
+                    request,
+                    // TODO: use a real activity instead of context.
+                    new GetCredentialTransport(mContext, executor, callback),
+                    mContext.getOpPackageName());
         } catch (RemoteException e) {
             e.rethrowFromSystemServer();
         }
@@ -124,7 +129,8 @@ public final class CredentialManager {
         ICancellationSignal cancelRemote = null;
         try {
             cancelRemote = mService.executeCreateCredential(request,
-                    new CreateCredentialTransport(executor, callback),
+                    // TODO: use a real activity instead of context.
+                    new CreateCredentialTransport(mContext, executor, callback),
                     mContext.getOpPackageName());
         } catch (RemoteException e) {
             e.rethrowFromSystemServer();
@@ -176,16 +182,29 @@ public final class CredentialManager {
     private static class GetCredentialTransport extends IGetCredentialCallback.Stub {
         // TODO: listen for cancellation to release callback.
 
+        private final Context mActivityContext;
         private final Executor mExecutor;
         private final OutcomeReceiver<
                 GetCredentialResponse, CredentialManagerException> mCallback;
 
-        private GetCredentialTransport(Executor executor,
+        private GetCredentialTransport(Context activityContext, Executor executor,
                 OutcomeReceiver<GetCredentialResponse, CredentialManagerException> callback) {
+            mActivityContext = activityContext;
             mExecutor = executor;
             mCallback = callback;
         }
 
+        @Override
+        public void onPendingIntent(PendingIntent pendingIntent) {
+            try {
+                mActivityContext.startIntentSender(pendingIntent.getIntentSender(), null, 0, 0, 0);
+            } catch (IntentSender.SendIntentException e) {
+                Log.e(TAG, "startIntentSender() failed for intent:"
+                        + pendingIntent.getIntentSender(), e);
+                // TODO: propagate the error.
+            }
+        }
+
         @Override
         public void onResponse(GetCredentialResponse response) {
             mExecutor.execute(() -> mCallback.onResult(response));
@@ -201,16 +220,29 @@ public final class CredentialManager {
     private static class CreateCredentialTransport extends ICreateCredentialCallback.Stub {
         // TODO: listen for cancellation to release callback.
 
+        private final Context mActivityContext;
         private final Executor mExecutor;
         private final OutcomeReceiver<
                 CreateCredentialResponse, CredentialManagerException> mCallback;
 
-        private CreateCredentialTransport(Executor executor,
+        private CreateCredentialTransport(Context activityContext, Executor executor,
                 OutcomeReceiver<CreateCredentialResponse, CredentialManagerException> callback) {
+            mActivityContext = activityContext;
             mExecutor = executor;
             mCallback = callback;
         }
 
+        @Override
+        public void onPendingIntent(PendingIntent pendingIntent) {
+            try {
+                mActivityContext.startIntentSender(pendingIntent.getIntentSender(), null, 0, 0, 0);
+            } catch (IntentSender.SendIntentException e) {
+                Log.e(TAG, "startIntentSender() failed for intent:"
+                        + pendingIntent.getIntentSender(), e);
+                // TODO: propagate the error.
+            }
+        }
+
         @Override
         public void onResponse(CreateCredentialResponse response) {
             mExecutor.execute(() -> mCallback.onResult(response));

core/java/android/credentials/ICreateCredentialCallback.aidl

@@ -16,6 +16,7 @@
 
 package android.credentials;
 
+import android.app.PendingIntent;
 import android.credentials.CreateCredentialResponse;
 
 /**
@@ -24,6 +25,7 @@ import android.credentials.CreateCredentialResponse;
  * @hide
  */
 interface ICreateCredentialCallback {
+    oneway void onPendingIntent(in PendingIntent pendingIntent);
     oneway void onResponse(in CreateCredentialResponse response);
     oneway void onError(int errorCode, String message);
 }

core/java/android/credentials/IGetCredentialCallback.aidl

@@ -16,6 +16,7 @@
 
 package android.credentials;
 
+import android.app.PendingIntent;
 import android.credentials.GetCredentialResponse;
 
 /**
@@ -24,6 +25,7 @@ import android.credentials.GetCredentialResponse;
  * @hide
  */
 interface IGetCredentialCallback {
+    oneway void onPendingIntent(in PendingIntent pendingIntent);
     oneway void onResponse(in GetCredentialResponse response);
     oneway void onError(int errorCode, String message);
 }

packages/CredentialManager/AndroidManifest.xml

@@ -36,8 +36,6 @@
         android:name=".CredentialSelectorActivity"
         android:exported="true"
         android:label="@string/app_name"
-        android:launchMode="singleInstance"
-        android:noHistory="true"
         android:excludeFromRecents="true"
         android:theme="@style/Theme.CredentialSelector">
     </activity>