Migrate dialer to RoleManager

Test: ensure settings UI is ok, ensure stock dialer can still make a call
Change-Id: Iab835939fbb92af06d9440910fbde2725ca66f70
diff --git a/core/java/android/app/role/RoleManagerCallback.java b/core/java/android/app/role/RoleManagerCallback.java
index d9f0a6c..a92ef32 100644
--- a/core/java/android/app/role/RoleManagerCallback.java
+++ b/core/java/android/app/role/RoleManagerCallback.java
@@ -19,6 +19,8 @@
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 
+import java.util.concurrent.CompletableFuture;
+
 /**
  * Callback for a {@link RoleManager} request.
  *
@@ -37,4 +39,18 @@
      * Signals a failure.
      */
     void onFailure();
+
+    /** @hide */
+    class Future extends CompletableFuture<Void> implements RoleManagerCallback {
+
+        @Override
+        public void onSuccess() {
+            complete(null);
+        }
+
+        @Override
+        public void onFailure() {
+            completeExceptionally(new RuntimeException());
+        }
+    }
 }
diff --git a/services/core/java/com/android/server/policy/role/LegacyRoleResolutionPolicy.java b/services/core/java/com/android/server/policy/role/LegacyRoleResolutionPolicy.java
index 7f2dedb..bfe7725 100644
--- a/services/core/java/com/android/server/policy/role/LegacyRoleResolutionPolicy.java
+++ b/services/core/java/com/android/server/policy/role/LegacyRoleResolutionPolicy.java
@@ -22,6 +22,8 @@
 import android.content.Context;
 import android.os.Debug;
 import android.provider.Settings;
+import android.telecom.TelecomManager;
+import android.text.TextUtils;
 import android.util.Log;
 import android.util.Slog;
 
@@ -102,6 +104,15 @@
                             ComponentName.unflattenFromString(legacyAssistant).getPackageName());
                 }
             }
+            case RoleManager.ROLE_DIALER: {
+                String setting = Settings.Secure.getStringForUser(
+                        mContext.getContentResolver(),
+                        Settings.Secure.DIALER_DEFAULT_APPLICATION, userId);
+
+                return CollectionUtils.singletonOrEmpty(!TextUtils.isEmpty(setting)
+                        ? setting
+                        : mContext.getSystemService(TelecomManager.class).getSystemDialerPackage());
+            }
             default: {
                 Slog.e(LOG_TAG, "Don't know how to find legacy role holders for " + roleName);
                 return Collections.emptyList();
diff --git a/services/core/java/com/android/server/role/RemoteRoleControllerService.java b/services/core/java/com/android/server/role/RemoteRoleControllerService.java
index cc3064e..be2544d 100644
--- a/services/core/java/com/android/server/role/RemoteRoleControllerService.java
+++ b/services/core/java/com/android/server/role/RemoteRoleControllerService.java
@@ -32,12 +32,14 @@
 import android.os.UserHandle;
 import android.rolecontrollerservice.IRoleControllerService;
 import android.rolecontrollerservice.RoleControllerService;
+import android.util.Log;
 import android.util.Slog;
 
 import com.android.internal.util.function.pooled.PooledLambda;
 import com.android.server.FgThread;
 
 import java.util.ArrayDeque;
+import java.util.Arrays;
 import java.util.Queue;
 
 /**
@@ -226,10 +228,21 @@
 
             private boolean mCallbackNotified;
 
+            @Nullable
+            private final String mDebugName;
+
             private Call(@NonNull CallExecutor callExecutor,
                     @NonNull IRoleManagerCallback callback) {
                 mCallExecutor = callExecutor;
                 mCallback = callback;
+                mDebugName = DEBUG
+                        ? Arrays.stream(Thread.currentThread().getStackTrace())
+                                .filter(s -> s.getClassName().equals(
+                                        RemoteRoleControllerService.class.getName()))
+                                .findFirst()
+                                .get()
+                                .getMethodName()
+                        : null;
             }
 
             @WorkerThread
@@ -254,6 +267,10 @@
 
             @WorkerThread
             private void notifyCallback(boolean success) {
+                if (DEBUG) {
+                    Log.i(LOG_TAG, "notifyCallback(" + this
+                            + ", success = " + success + ")");
+                }
                 if (mCallbackNotified) {
                     return;
                 }
@@ -273,7 +290,7 @@
 
             @Override
             public String toString() {
-                return "Call with callback: " + mCallback;
+                return DEBUG ? mDebugName : "Call with callback: " + mCallback;
             }
 
             @FunctionalInterface
diff --git a/services/core/java/com/android/server/role/RoleManagerService.java b/services/core/java/com/android/server/role/RoleManagerService.java
index 1c7596b..264d5ff 100644
--- a/services/core/java/com/android/server/role/RoleManagerService.java
+++ b/services/core/java/com/android/server/role/RoleManagerService.java
@@ -199,6 +199,7 @@
             // for a given role before adding a migration statement for it here
             migrateRoleIfNecessary(RoleManager.ROLE_SMS, userId);
             migrateRoleIfNecessary(RoleManager.ROLE_ASSISTANT, userId);
+            migrateRoleIfNecessary(RoleManager.ROLE_DIALER, userId);
 
             // Some vital packages state has changed since last role grant
             // Run grants again
diff --git a/telecomm/java/android/telecom/DefaultDialerManager.java b/telecomm/java/android/telecom/DefaultDialerManager.java
index 2680af7..b2fa5d4 100644
--- a/telecomm/java/android/telecom/DefaultDialerManager.java
+++ b/telecomm/java/android/telecom/DefaultDialerManager.java
@@ -15,17 +15,22 @@
 package android.telecom;
 
 import android.app.ActivityManager;
+import android.app.role.RoleManager;
+import android.app.role.RoleManagerCallback;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.ActivityInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.net.Uri;
+import android.os.AsyncTask;
+import android.os.Binder;
 import android.os.Process;
 import android.os.UserHandle;
-import android.provider.Settings;
 import android.text.TextUtils;
 
+import com.android.internal.util.CollectionUtils;
+
 import java.util.ArrayList;
 import java.util.List;
 
@@ -64,25 +69,24 @@
      * */
     public static boolean setDefaultDialerApplication(Context context, String packageName,
             int user) {
-        // Get old package name
-        String oldPackageName = Settings.Secure.getStringForUser(context.getContentResolver(),
-                Settings.Secure.DIALER_DEFAULT_APPLICATION, user);
+        long identity = Binder.clearCallingIdentity();
+        try {
+            context.getSystemService(RoleManager.class).addRoleHolderAsUser(
+                    RoleManager.ROLE_DIALER, packageName, UserHandle.of(user),
+                    AsyncTask.THREAD_POOL_EXECUTOR, new RoleManagerCallback() {
+                        @Override
+                        public void onSuccess() {}
 
-        if (packageName != null && oldPackageName != null && packageName.equals(oldPackageName)) {
-            // No change
-            return false;
-        }
-
-        // Only make the change if the new package belongs to a valid phone application
-        List<String> packageNames = getInstalledDialerApplications(context, user);
-
-        if (packageNames.contains(packageName)) {
-            // Update the secure setting.
-            Settings.Secure.putStringForUser(context.getContentResolver(),
-                    Settings.Secure.DIALER_DEFAULT_APPLICATION, packageName, user);
+                        @Override
+                        public void onFailure() {
+                            Log.w(TAG, "Failed to set default dialer to %s for user %s",
+                                    packageName, user);
+                        }
+                    });
             return true;
+        } finally {
+            Binder.restoreCallingIdentity(identity);
         }
-        return false;
     }
 
     /**
@@ -116,28 +120,12 @@
      * @hide
      * */
     public static String getDefaultDialerApplication(Context context, int user) {
-        String defaultPackageName = Settings.Secure.getStringForUser(context.getContentResolver(),
-                Settings.Secure.DIALER_DEFAULT_APPLICATION, user);
-
-        final List<String> packageNames = getInstalledDialerApplications(context, user);
-
-        // Verify that the default dialer has not been disabled or uninstalled.
-        if (packageNames.contains(defaultPackageName)) {
-            return defaultPackageName;
-        }
-
-        // No user-set dialer found, fallback to system dialer
-        String systemDialerPackageName = getTelecomManager(context).getSystemDialerPackage();
-
-        if (TextUtils.isEmpty(systemDialerPackageName)) {
-            // No system dialer configured at build time
-            return null;
-        }
-
-        if (packageNames.contains(systemDialerPackageName)) {
-            return systemDialerPackageName;
-        } else {
-            return null;
+        long identity = Binder.clearCallingIdentity();
+        try {
+            return CollectionUtils.firstOrNull(context.getSystemService(RoleManager.class)
+                    .getRoleHoldersAsUser(RoleManager.ROLE_DIALER, UserHandle.of(user)));
+        } finally {
+            Binder.restoreCallingIdentity(identity);
         }
     }
 
diff --git a/telephony/java/com/android/internal/telephony/SmsApplication.java b/telephony/java/com/android/internal/telephony/SmsApplication.java
index a508b06..d3420ee 100644
--- a/telephony/java/com/android/internal/telephony/SmsApplication.java
+++ b/telephony/java/com/android/internal/telephony/SmsApplication.java
@@ -51,7 +51,6 @@
 import java.util.Collection;
 import java.util.HashMap;
 import java.util.List;
-import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.TimeoutException;
@@ -635,20 +634,10 @@
             }
 
             // Update the setting.
-            CompletableFuture<Void> res = new CompletableFuture<>();
+            RoleManagerCallback.Future res = new RoleManagerCallback.Future();
             context.getSystemService(RoleManager.class).addRoleHolderAsUser(
                     RoleManager.ROLE_SMS, applicationData.mPackageName, UserHandle.of(userId),
-                    AsyncTask.THREAD_POOL_EXECUTOR, new RoleManagerCallback() {
-                        @Override
-                        public void onSuccess() {
-                            res.complete(null);
-                        }
-
-                        @Override
-                        public void onFailure() {
-                            res.completeExceptionally(new RuntimeException());
-                        }
-                    });
+                    AsyncTask.THREAD_POOL_EXECUTOR, res);
             try {
                 res.get(5, TimeUnit.SECONDS);
             } catch (InterruptedException | ExecutionException | TimeoutException e) {