Prevent disabling default phone/sms apps in battery setting

- In handleDisableable(), call getKeepEnabledPackages() in the same way
  as AppActionButtonPreferenceController.
- Update getKeepEnabledPackages() to dynamically query default phone/sms
  app packages.

Change-Id: I8dc7d6248cf440dcc053f6acba9d5548d5670c41
Bug: 80328396
Bug: 80312809
Test: robotests

tests/robotests/src/com/android/settings/applications/ApplicationFeatureProviderImplTest.java

@@ -20,6 +20,7 @@ import static com.google.common.truth.Truth.assertThat;
 import static org.mockito.Mockito.when;
 
 import android.app.admin.DevicePolicyManager;
+import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.ActivityInfo;
@@ -34,17 +35,23 @@ import android.os.UserManager;
 
 import com.android.settings.testutils.ApplicationTestUtils;
 import com.android.settings.testutils.SettingsRobolectricTestRunner;
+import com.android.settings.testutils.shadow.ShadowDefaultDialerManager;
+import com.android.settings.testutils.shadow.ShadowSmsApplication;
 
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
+import org.robolectric.RuntimeEnvironment;
+import org.robolectric.annotation.Config;
 import org.robolectric.shadows.ShadowApplication;
+import org.robolectric.util.ReflectionHelpers;
 
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
+import java.util.Set;
 
 /**
  * Tests for {@link ApplicationFeatureProviderImpl}.
@@ -246,8 +253,18 @@ public final class ApplicationFeatureProviderImplTest {
     }
 
     @Test
-    public void getKeepEnabledPackages_shouldContainNothing() {
-        assertThat(mProvider.getKeepEnabledPackages()).isEmpty();
+    @Config(shadows = {ShadowSmsApplication.class, ShadowDefaultDialerManager.class})
+    public void getKeepEnabledPackages_shouldContainDefaultPhoneAndSms() {
+        final String testDialer = "com.android.test.defaultdialer";
+        final String testSms = "com.android.test.defaultsms";
+        ShadowSmsApplication.setDefaultSmsApplication(new ComponentName(testSms, "receiver"));
+        ShadowDefaultDialerManager.setDefaultDialerApplication(testDialer);
+        ReflectionHelpers.setField(mProvider, "mContext", RuntimeEnvironment.application);
+
+        final Set<String> keepEnabledPackages = mProvider.getKeepEnabledPackages();
+
+        final List<String> expectedPackages = Arrays.asList(testDialer, testSms);
+        assertThat(keepEnabledPackages).containsExactlyElementsIn(expectedPackages);
     }
 
     private void setUpUsersAndInstalledApps() {

tests/robotests/src/com/android/settings/testutils/shadow/ShadowDefaultDialerManager.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2018 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 com.android.settings.testutils.shadow;
+
+import android.content.Context;
+import android.telecom.DefaultDialerManager;
+
+import org.robolectric.annotation.Implementation;
+import org.robolectric.annotation.Implements;
+import org.robolectric.annotation.Resetter;
+
+@Implements(DefaultDialerManager.class)
+public class ShadowDefaultDialerManager {
+
+    private static String sDefaultDailer;
+
+    @Resetter
+    public void reset() {
+        sDefaultDailer = null;
+    }
+
+    @Implementation
+    public static String getDefaultDialerApplication(Context context) {
+        return sDefaultDailer;
+    }
+
+    public static void setDefaultDialerApplication(String dialer) {
+        sDefaultDailer = dialer;
+    }
+}

tests/robotests/src/com/android/settings/testutils/shadow/ShadowSmsApplication.java

@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2018 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 com.android.settings.testutils.shadow;
+
+import android.content.ComponentName;
+import android.content.Context;
+
+import com.android.internal.telephony.SmsApplication;
+
+import org.robolectric.annotation.Implementation;
+import org.robolectric.annotation.Implements;
+import org.robolectric.annotation.Resetter;
+
+@Implements(SmsApplication.class)
+public class ShadowSmsApplication {
+
+    private static ComponentName sDefaultSmsApplication;
+
+    @Resetter
+    public void reset() {
+        sDefaultSmsApplication = null;
+    }
+
+    @Implementation
+    public static ComponentName getDefaultSmsApplication(Context context, boolean updateIfNeeded) {
+        return sDefaultSmsApplication;
+    }
+
+    public static void setDefaultSmsApplication(ComponentName cn) {
+        sDefaultSmsApplication = cn;
+    }
+}