Disable bg restriction for "Disallow apps control"

Use RestrictedPreference so it could handle it automatically

Change-Id: Ibf58934639677b88316366b2e00790f9556d0966
Fixes: 64474641
Test: Robotests

res/xml/power_usage_detail.xml

@@ -15,7 +15,9 @@
   limitations under the License.
   -->
 
-<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
+<PreferenceScreen
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:settings="http://schemas.android.com/apk/res-auto">
 
     <com.android.settings.applications.LayoutPreference
         android:key="header_view"
@@ -30,10 +32,11 @@
     <PreferenceCategory
         android:title="@string/battery_detail_manage_title">
 
-        <Preference
+        <com.android.settingslib.RestrictedPreference
             android:key="background_activity"
             android:title="@string/background_activity_title"
-            android:selectable="true"/>
+            android:selectable="true"
+            settings:userRestriction="no_control_apps"/>
 
         <Preference
             android:key="battery_optimization"

src/com/android/settings/fuelgauge/BackgroundActivityPreferenceController.java

@@ -28,6 +28,7 @@ import com.android.settings.fuelgauge.batterytip.BatteryTipDialogFragment;
 import com.android.settings.fuelgauge.batterytip.tips.BatteryTip;
 import com.android.settings.fuelgauge.batterytip.tips.RestrictAppTip;
 import com.android.settings.fuelgauge.batterytip.tips.UnrestrictAppTip;
+import com.android.settingslib.RestrictedPreference;
 import com.android.settingslib.core.AbstractPreferenceController;
 import com.android.settingslib.fuelgauge.PowerWhitelistBackend;
 
@@ -76,6 +77,11 @@ public class BackgroundActivityPreferenceController extends AbstractPreferenceCo
 
     @Override
     public void updateState(Preference preference) {
+        final RestrictedPreference restrictedPreference = (RestrictedPreference) preference;
+        if (restrictedPreference.isDisabledByAdmin()) {
+            // If disabled, let RestrictedPreference handle it and do nothing here
+            return;
+        }
         final int mode = mAppOpsManager
                 .checkOpNoThrow(AppOpsManager.OP_RUN_ANY_IN_BACKGROUND, mUid, mTargetPackage);
         final boolean whitelisted = mPowerWhitelistBackend.isWhitelisted(mTargetPackage);

tests/robotests/src/com/android/settings/fuelgauge/BackgroundActivityPreferenceControllerTest.java

@@ -17,10 +17,13 @@
 package com.android.settings.fuelgauge;
 
 import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Matchers.anyBoolean;
 import static org.mockito.Matchers.anyInt;
 import static org.mockito.Matchers.anyString;
 import static org.mockito.Mockito.doNothing;
 import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
@@ -38,6 +41,7 @@ import com.android.settings.testutils.FakeFeatureFactory;
 import com.android.settings.testutils.SettingsRobolectricTestRunner;
 import com.android.settings.testutils.shadow.SettingsShadowResources;
 import com.android.settings.testutils.shadow.ShadowFragment;
+import com.android.settingslib.RestrictedPreference;
 import com.android.settingslib.fuelgauge.PowerWhitelistBackend;
 
 import org.junit.Before;
@@ -49,8 +53,6 @@ import org.mockito.MockitoAnnotations;
 import org.robolectric.RuntimeEnvironment;
 import org.robolectric.annotation.Config;
 
-import androidx.preference.Preference;
-
 @RunWith(SettingsRobolectricTestRunner.class)
 @Config(shadows = {SettingsShadowResources.SettingsShadowTheme.class, ShadowFragment.class})
 public class BackgroundActivityPreferenceControllerTest {
@@ -80,7 +82,7 @@ public class BackgroundActivityPreferenceControllerTest {
     @Mock
     private PowerWhitelistBackend mPowerWhitelistBackend;
     private BackgroundActivityPreferenceController mController;
-    private Preference mPreference;
+    private RestrictedPreference mPreference;
     private Context mShadowContext;
     private BatteryUtils mBatteryUtils;
 
@@ -109,7 +111,7 @@ public class BackgroundActivityPreferenceControllerTest {
         mBatteryUtils = spy(new BatteryUtils(mShadowContext));
         doNothing().when(mBatteryUtils).setForceAppStandby(anyInt(), anyString(), anyInt());
 
-        mPreference = new Preference(mShadowContext);
+        mPreference = spy(new RestrictedPreference(mShadowContext, null /* attrs */));
         mPreference.setKey(BackgroundActivityPreferenceController.KEY_BACKGROUND_ACTIVITY);
         mController = spy(new BackgroundActivityPreferenceController(
                 mContext, mFragment, UID_LOW_SDK, LOW_SDK_PACKAGE, mPowerWhitelistBackend));
@@ -118,7 +120,7 @@ public class BackgroundActivityPreferenceControllerTest {
     }
 
     @Test
-    public void testHandlePreferenceTreeClick_restrictApp_showDialog() {
+    public void handlePreferenceTreeClick_restrictApp_showDialog() {
         doReturn(AppOpsManager.MODE_ALLOWED).when(mAppOpsManager)
                 .checkOpNoThrow(anyInt(), anyInt(), anyString());
 
@@ -128,7 +130,7 @@ public class BackgroundActivityPreferenceControllerTest {
     }
 
     @Test
-    public void testHandlePreferenceTreeClick_unRestrictApp_showDialog() {
+    public void handlePreferenceTreeClick_unRestrictApp_showDialog() {
         doReturn(AppOpsManager.MODE_IGNORED).when(mAppOpsManager)
                 .checkOpNoThrow(anyInt(), anyInt(), anyString());
 
@@ -138,7 +140,7 @@ public class BackgroundActivityPreferenceControllerTest {
     }
 
     @Test
-    public void testUpdateState_noError_setEnabled() {
+    public void updateState_noError_setEnabled() {
         when(mAppOpsManager.checkOpNoThrow(AppOpsManager.OP_RUN_ANY_IN_BACKGROUND, UID_LOW_SDK,
                 LOW_SDK_PACKAGE)).thenReturn(AppOpsManager.MODE_ALLOWED);
 
@@ -149,7 +151,7 @@ public class BackgroundActivityPreferenceControllerTest {
     }
 
     @Test
-    public void testUpdateState_whitelisted() {
+    public void updateState_whitelisted() {
         when(mPowerWhitelistBackend.isWhitelisted(LOW_SDK_PACKAGE)).thenReturn(true);
         mController.updateState(mPreference);
         assertThat(mPreference.isEnabled()).isFalse();
@@ -158,7 +160,16 @@ public class BackgroundActivityPreferenceControllerTest {
     }
 
     @Test
-    public void testUpdateSummary_modeError_showSummaryDisabled() {
+    public void updateState_disabledByAdmin_doNothing() {
+        doReturn(true).when(mPreference).isDisabledByAdmin();
+
+        mController.updateState(mPreference);
+
+        verify(mPreference, never()).setEnabled(anyBoolean());
+    }
+
+    @Test
+    public void updateSummary_modeError_showSummaryDisabled() {
         when(mAppOpsManager.checkOpNoThrow(AppOpsManager.OP_RUN_ANY_IN_BACKGROUND, UID_LOW_SDK,
                 LOW_SDK_PACKAGE)).thenReturn(AppOpsManager.MODE_ERRORED);
         final CharSequence expectedSummary = mShadowContext.getText(
@@ -169,7 +180,7 @@ public class BackgroundActivityPreferenceControllerTest {
     }
 
     @Test
-    public void testUpdateSummary_modeDefault_showNotRestricted() {
+    public void updateSummary_modeDefault_showNotRestricted() {
         when(mAppOpsManager.checkOpNoThrow(AppOpsManager.OP_RUN_ANY_IN_BACKGROUND, UID_LOW_SDK,
                 LOW_SDK_PACKAGE)).thenReturn(AppOpsManager.MODE_DEFAULT);
 
@@ -179,7 +190,7 @@ public class BackgroundActivityPreferenceControllerTest {
     }
 
     @Test
-    public void testUpdateSummary_modeIgnored_showRestricted() {
+    public void updateSummary_modeIgnored_showRestricted() {
         when(mAppOpsManager.checkOpNoThrow(AppOpsManager.OP_RUN_ANY_IN_BACKGROUND, UID_LOW_SDK,
                 LOW_SDK_PACKAGE)).thenReturn(AppOpsManager.MODE_IGNORED);
 
@@ -189,7 +200,7 @@ public class BackgroundActivityPreferenceControllerTest {
     }
 
     @Test
-    public void testIsAvailable_ReturnTrue() {
+    public void isAvailable_ReturnTrue() {
         assertThat(mController.isAvailable()).isTrue();
     }
 }