Add utils for launching the ux.

This abstracts the understanding of the extra key mapping and result
recever parcelling.

Test: deployed locally
Bug: 247855226
Change-Id: Idc671f2f8118d098463f006e7d05d20e1e65cf77

core/java/android/credentials/ui/Constants.java

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.credentials.ui;
+
+/**
+ * Constants for the ui protocol that doesn't fit into other individual data structures.
+ *
+ * @hide
+ */
+public class Constants {
+
+    /**
+    * The intent extra key for the {@code ResultReceiver} object when launching the UX
+    * activities.
+    */
+    public static final String EXTRA_RESULT_RECEIVER =
+            "android.credentials.ui.extra.RESULT_RECEIVER";
+
+}

core/java/android/credentials/ui/IntentFactory.java

@@ -0,0 +1,68 @@
+/*
+ * Copyright 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.credentials.ui;
+
+import android.content.ComponentName;
+import android.content.Intent;
+import android.os.Parcel;
+import android.os.ResultReceiver;
+
+import java.util.ArrayList;
+
+/**
+ * Helpers for generating the intents and related extras parameters to launch the UI activities.
+ *
+ * @hide
+ */
+public class IntentFactory {
+    /** Generate a new launch intent to the . */
+    public static Intent newIntent(RequestInfo requestInfo,
+            ArrayList<ProviderData> providerDataList, ResultReceiver resultReceiver) {
+        Intent intent = new Intent();
+        // TODO: define these as proper config strings.
+        String activityName = "com.androidauth.tatiaccountselector/.CredentialSelectorActivity";
+        // String activityName = "com.android.credentialmanager/.CredentialSelectorActivity";
+        intent.setComponent(ComponentName.unflattenFromString(activityName));
+
+        intent.putParcelableArrayListExtra(
+                ProviderData.EXTRA_PROVIDER_DATA_LIST, providerDataList);
+        intent.putExtra(RequestInfo.EXTRA_REQUEST_INFO, requestInfo);
+        intent.putExtra(Constants.EXTRA_RESULT_RECEIVER,
+                toIpcFriendlyResultReceiver(resultReceiver));
+
+        return intent;
+    }
+
+    /**
+    * Convert an instance of a "locally-defined" ResultReceiver to an instance of
+    * {@link android.os.ResultReceiver} itself, which the receiving process will be able to
+    * unmarshall.
+    */
+    private static <T extends ResultReceiver> ResultReceiver toIpcFriendlyResultReceiver(
+            T resultReceiver) {
+        final Parcel parcel = Parcel.obtain();
+        resultReceiver.writeToParcel(parcel, 0);
+        parcel.setDataPosition(0);
+
+        final ResultReceiver ipcFriendly = ResultReceiver.CREATOR.createFromParcel(parcel);
+        parcel.recycle();
+
+        return ipcFriendly;
+    }
+
+    private IntentFactory() {}
+}

core/java/android/credentials/ui/RequestInfo.java

@@ -36,12 +36,6 @@ public class RequestInfo implements Parcelable {
      */
     public static final @NonNull String EXTRA_REQUEST_INFO =
             "android.credentials.ui.extra.REQUEST_INFO";
-    /**
-     * The intent extra key for the {@code ResultReceiver} object when launching the UX
-     * activities.
-     */
-    public static final @NonNull String EXTRA_RESULT_RECEIVER =
-            "android.credentials.ui.extra.RESULT_RECEIVER";
 
     /** Type value for an executeGetCredential request. */
     public static final @NonNull String TYPE_GET = "android.credentials.ui.TYPE_GET";

packages/CredentialManager/src/com/android/credentialmanager/CredentialManagerRepo.kt

@@ -21,6 +21,7 @@ import android.app.slice.Slice
 import android.app.slice.SliceSpec
 import android.content.Context
 import android.content.Intent
+import android.credentials.ui.Constants
 import android.credentials.ui.Entry
 import android.credentials.ui.ProviderData
 import android.credentials.ui.RequestInfo
@@ -60,7 +61,7 @@ class CredentialManagerRepo(
     ) ?: testProviderList()
 
     resultReceiver = intent.getParcelableExtra(
-      RequestInfo.EXTRA_RESULT_RECEIVER,
+      Constants.EXTRA_RESULT_RECEIVER,
       ResultReceiver::class.java
     )
   }