Merge "Introduce ForceMsaaPreferenceController"

src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java

@@ -297,7 +297,7 @@ public class DevelopmentSettingsDashboardFragment extends RestrictedDashboardFra
         controllers.add(new HardwareLayersUpdatesPreferenceController(context));
         // debug gpu overdraw
         // debug non-rectangular clip operations
-        // force 4x msaa
+        controllers.add(new ForceMSAAPreferenceController(context));
         // disable hw overlays
         // simulate color space
         // set gpu renderer

src/com/android/settings/development/ForceMSAAPreferenceController.java

@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2017 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.development;
+
+import android.content.Context;
+import android.os.SystemProperties;
+import android.support.annotation.VisibleForTesting;
+import android.support.v14.preference.SwitchPreference;
+import android.support.v7.preference.Preference;
+import android.support.v7.preference.PreferenceScreen;
+
+import com.android.settingslib.development.SystemPropPoker;
+
+public class ForceMSAAPreferenceController extends DeveloperOptionsPreferenceController
+        implements Preference.OnPreferenceChangeListener {
+
+    private static final String FORCE_MSAA_KEY = "force_msaa";
+
+    @VisibleForTesting
+    static final String MSAA_PROPERTY = "debug.egl.force_msaa";
+
+    private SwitchPreference mPreference;
+
+    public ForceMSAAPreferenceController(Context context) {
+        super(context);
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return FORCE_MSAA_KEY;
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+
+        mPreference = (SwitchPreference) screen.findPreference(getPreferenceKey());
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        final boolean isEnabled = (Boolean) newValue;
+        SystemProperties.set(MSAA_PROPERTY,
+                isEnabled ? Boolean.toString(true) : Boolean.toString(false));
+        SystemPropPoker.getInstance().poke();
+        return true;
+    }
+
+    @Override
+    public void updateState(Preference preference) {
+        final boolean isEnabled = SystemProperties.getBoolean(MSAA_PROPERTY, false /* default */);
+        mPreference.setChecked(isEnabled);
+    }
+
+    @Override
+    protected void onDeveloperOptionsSwitchEnabled() {
+        mPreference.setEnabled(true);
+    }
+
+    @Override
+    protected void onDeveloperOptionsSwitchDisabled() {
+        SystemProperties.set(MSAA_PROPERTY, Boolean.toString(false));
+        mPreference.setChecked(false);
+        mPreference.setEnabled(false);
+    }
+}

tests/robotests/src/com/android/settings/development/ForceMSAAPreferenceControllerTest.java

@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2017 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.development;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+import android.support.v14.preference.SwitchPreference;
+import android.support.v7.preference.PreferenceScreen;
+
+import com.android.settings.TestConfig;
+import com.android.settings.testutils.SettingsRobolectricTestRunner;
+import com.android.settings.testutils.shadow.SettingsShadowSystemProperties;
+
+import org.junit.After;
+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;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH,
+        sdk = TestConfig.SDK_VERSION,
+        shadows = {SettingsShadowSystemProperties.class})
+public class ForceMSAAPreferenceControllerTest {
+
+    @Mock
+    private SwitchPreference mPreference;
+    @Mock
+    private PreferenceScreen mPreferenceScreen;
+
+    private Context mContext;
+    private ForceMSAAPreferenceController mController;
+
+    @Before
+    public void setup() {
+        MockitoAnnotations.initMocks(this);
+        mContext = RuntimeEnvironment.application;
+        mController = new ForceMSAAPreferenceController(mContext);
+        when(mPreferenceScreen.findPreference(mController.getPreferenceKey())).thenReturn(
+                mPreference);
+        mController.displayPreference(mPreferenceScreen);
+    }
+
+    @After
+    public void tearDown() {
+        SettingsShadowSystemProperties.clear();
+    }
+
+    @Test
+    public void onPreferenceChanged_settingEnabled_turnOnForceMsaa() {
+        mController.onPreferenceChange(mPreference, true /* new value */);
+
+        final boolean mode = SettingsShadowSystemProperties.getBoolean(
+                ForceMSAAPreferenceController.MSAA_PROPERTY, false /* default */);
+
+        assertThat(mode).isTrue();
+    }
+
+    @Test
+    public void onPreferenceChanged_settingDisabled_turnOffForceMsaa() {
+        mController.onPreferenceChange(mPreference, false /* new value */);
+
+        final boolean mode = SettingsShadowSystemProperties.getBoolean(
+                ForceMSAAPreferenceController.MSAA_PROPERTY, false /* default */);
+
+        assertThat(mode).isFalse();
+    }
+
+    @Test
+    public void updateState_settingEnabled_preferenceShouldBeChecked() {
+        SettingsShadowSystemProperties.set(ForceMSAAPreferenceController.MSAA_PROPERTY,
+                Boolean.toString(true));
+        mController.updateState(mPreference);
+
+        verify(mPreference).setChecked(true);
+    }
+
+    @Test
+    public void updateState_settingDisabled_preferenceShouldNotBeChecked() {
+        SettingsShadowSystemProperties.set(ForceMSAAPreferenceController.MSAA_PROPERTY,
+                Boolean.toString(false));
+        mController.updateState(mPreference);
+
+        verify(mPreference).setChecked(false);
+    }
+
+    @Test
+    public void onDeveloperOptionsDisabled_shouldDisablePreference() {
+        mController.onDeveloperOptionsDisabled();
+
+        verify(mPreference).setEnabled(false);
+        verify(mPreference).setChecked(false);
+    }
+
+    @Test
+    public void onDeveloperOptionsEnabled_shouldEnablePreference() {
+        mController.onDeveloperOptionsEnabled();
+
+        final boolean mode = SettingsShadowSystemProperties.getBoolean(
+                ForceMSAAPreferenceController.MSAA_PROPERTY, false /* default */);
+
+        assertThat(mode).isFalse();
+        verify(mPreference).setEnabled(true);
+    }
+}