Merge "Add Smooth Display option to developer in Settings" into rvc-dev

5 files changed, 275 insertions, 0 deletions

diff --git a/res/values/strings.xml b/res/values/strings.xml
index e0c5d5d33e..847335750f 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -2752,6 +2752,10 @@
     <string name="peak_refresh_rate_title">Smooth Display</string>
     <!-- Display settings screen, peak refresh rate settings summary [CHAR LIMIT=NONE] -->
     <string name="peak_refresh_rate_summary">Automatically raises the refresh rate from 60 to 90 Hz for some content. Increases battery usage.</string>
+    <!-- Display developer settings: Force to the highest refresh rate [CHAR LIMIT=NONE] -->
+    <string name="force_high_refresh_rate_toggle">Smooth Display</string>
+    <!-- Display developer settings: Force to the highest refresh rate description [CHAR LIMIT=NONE]-->
+    <string name="force_high_refresh_rate_desc">Highest refresh rate for improved touch responsiveness &amp; animation quality. Increases battery usage.</string>
     <!-- Display settings screen, setting option name to enable adaptive sleep [CHAR LIMIT=30] -->
     <string name="adaptive_sleep_title">Screen attention</string>
     <!-- Setting option summary when adaptive sleep is on [CHAR LIMIT=NONE] -->
diff --git a/res/xml/development_settings.xml b/res/xml/development_settings.xml
index e8605894f6..746a51c4b9 100644
--- a/res/xml/development_settings.xml
+++ b/res/xml/development_settings.xml
@@ -256,6 +256,11 @@
             android:title="@string/overlay_settings_title"
             android:summary="@string/overlay_settings_summary" />
 
+        <SwitchPreference
+            android:key="pref_key_peak_refresh_rate"
+            android:title="@string/force_high_refresh_rate_toggle"
+            android:summary="@string/force_high_refresh_rate_desc" />
+
     </PreferenceCategory>
 
     <PreferenceCategory
diff --git a/src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java b/src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java
index 9406c89539..945970eafb 100644
--- a/src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java
+++ b/src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java
@@ -459,6 +459,7 @@ public class DevelopmentSettingsDashboardFragment extends RestrictedDashboardFra
         controllers.add(new SelectDebugAppPreferenceController(context, fragment));
         controllers.add(new WaitForDebuggerPreferenceController(context));
         controllers.add(new EnableGpuDebugLayersPreferenceController(context));
+        controllers.add(new ForcePeakRefreshRatePreferenceController(context));
         controllers.add(new EnableVerboseVendorLoggingPreferenceController(context));
         controllers.add(new VerifyAppsOverUsbPreferenceController(context));
         controllers.add(new ArtVerifierPreferenceController(context));
diff --git a/src/com/android/settings/development/ForcePeakRefreshRatePreferenceController.java b/src/com/android/settings/development/ForcePeakRefreshRatePreferenceController.java
new file mode 100644
index 0000000000..78352d33cd
--- /dev/null
+++ b/src/com/android/settings/development/ForcePeakRefreshRatePreferenceController.java
@@ -0,0 +1,132 @@
+/*
+ * Copyright (C) 2020 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.hardware.display.DisplayManager;
+import android.provider.Settings;
+import android.util.Log;
+import android.view.Display;
+
+import androidx.annotation.VisibleForTesting;
+import androidx.preference.Preference;
+import androidx.preference.PreferenceScreen;
+import androidx.preference.SwitchPreference;
+
+import com.android.settings.R;
+import com.android.settings.core.PreferenceControllerMixin;
+import com.android.settingslib.development.DeveloperOptionsPreferenceController;
+
+public class ForcePeakRefreshRatePreferenceController extends DeveloperOptionsPreferenceController
+        implements Preference.OnPreferenceChangeListener, PreferenceControllerMixin {
+
+    @VisibleForTesting
+    static float DEFAULT_REFRESH_RATE = 60f;
+
+    @VisibleForTesting
+    static float NO_CONFIG = 0f;
+
+    @VisibleForTesting
+    float mPeakRefreshRate;
+
+    private static final String TAG = "ForcePeakRefreshRateCtr";
+    private static final String PREFERENCE_KEY = "pref_key_peak_refresh_rate";
+
+    public ForcePeakRefreshRatePreferenceController(Context context) {
+        super(context);
+
+        final DisplayManager dm = context.getSystemService(DisplayManager.class);
+        final Display display = dm.getDisplay(Display.DEFAULT_DISPLAY);
+
+        if (display == null) {
+            Log.w(TAG, "No valid default display device");
+            mPeakRefreshRate = DEFAULT_REFRESH_RATE;
+        } else {
+            mPeakRefreshRate = findPeakRefreshRate(display.getSupportedModes());
+        }
+
+        Log.d(TAG, "DEFAULT_REFRESH_RATE : " + DEFAULT_REFRESH_RATE
+            + " mPeakRefreshRate : " + mPeakRefreshRate);
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return PREFERENCE_KEY;
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+        mPreference = screen.findPreference(getPreferenceKey());
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        final boolean isEnabled = (Boolean) newValue;
+        forcePeakRefreshRate(isEnabled);
+
+        return true;
+    }
+
+    @Override
+    public void updateState(Preference preference) {
+        ((SwitchPreference) mPreference).setChecked(isForcePeakRefreshRateEnabled());
+    }
+
+    @Override
+    public boolean isAvailable() {
+        if (mContext.getResources().getBoolean(R.bool.config_show_smooth_display)) {
+            return mPeakRefreshRate > DEFAULT_REFRESH_RATE;
+        } else {
+            return false;
+        }
+    }
+
+    @Override
+    protected void onDeveloperOptionsSwitchDisabled() {
+        super.onDeveloperOptionsSwitchDisabled();
+        Settings.System.putFloat(mContext.getContentResolver(),
+            Settings.System.MIN_REFRESH_RATE, NO_CONFIG);
+
+        ((SwitchPreference) mPreference).setChecked(false);
+    }
+
+    @VisibleForTesting
+    void forcePeakRefreshRate(boolean enable) {
+        final float peakRefreshRate = enable ? mPeakRefreshRate : NO_CONFIG;
+        Settings.System.putFloat(mContext.getContentResolver(),
+            Settings.System.MIN_REFRESH_RATE, peakRefreshRate);
+    }
+
+    boolean isForcePeakRefreshRateEnabled() {
+        final float peakRefreshRate = Settings.System.getFloat(mContext.getContentResolver(),
+            Settings.System.MIN_REFRESH_RATE, NO_CONFIG);
+
+        return peakRefreshRate >= mPeakRefreshRate;
+    }
+
+    private float findPeakRefreshRate(Display.Mode[] modes) {
+        float peakRefreshRate = DEFAULT_REFRESH_RATE;
+        for (Display.Mode mode : modes) {
+            if (Math.round(mode.getRefreshRate()) > DEFAULT_REFRESH_RATE) {
+                peakRefreshRate = mode.getRefreshRate();
+            }
+        }
+
+        return peakRefreshRate;
+    }
+}
diff --git a/tests/robotests/src/com/android/settings/development/ForcePeakRefreshRatePreferenceControllerTest.java b/tests/robotests/src/com/android/settings/development/ForcePeakRefreshRatePreferenceControllerTest.java
new file mode 100644
index 0000000000..2e93d5ef9c
--- /dev/null
+++ b/tests/robotests/src/com/android/settings/development/ForcePeakRefreshRatePreferenceControllerTest.java
@@ -0,0 +1,133 @@
+/*
+ * Copyright (C) 2020 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.android.settings.development.ForcePeakRefreshRatePreferenceController.DEFAULT_REFRESH_RATE;
+import static com.android.settings.development.ForcePeakRefreshRatePreferenceController.NO_CONFIG;
+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.provider.Settings;
+
+import androidx.preference.PreferenceScreen;
+import androidx.preference.SwitchPreference;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
+import org.robolectric.annotation.Config;
+
+import android.util.Log;
+
+@RunWith(RobolectricTestRunner.class)
+public class ForcePeakRefreshRatePreferenceControllerTest {
+
+    @Mock
+    private SwitchPreference mPreference;
+    @Mock
+    private PreferenceScreen mScreen;
+
+    private Context mContext;
+    private ForcePeakRefreshRatePreferenceController mController;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mContext = RuntimeEnvironment.application;
+        mController = new ForcePeakRefreshRatePreferenceController(mContext);
+        when(mScreen.findPreference(mController.getPreferenceKey())).thenReturn(mPreference);
+        when(mPreference.getKey()).thenReturn(mController.getPreferenceKey());
+        mController.displayPreference(mScreen);
+    }
+
+    @Test
+    public void onPreferenceChange_preferenceChecked_shouldEnableForcePeak() {
+        mController.mPeakRefreshRate = 88f;
+
+        mController.onPreferenceChange(mPreference, true);
+
+        assertThat(Settings.System.getFloat(mContext.getContentResolver(),
+                Settings.System.MIN_REFRESH_RATE, NO_CONFIG)).isEqualTo(88f);
+    }
+
+    @Test
+    public void onPreferenceChange_preferenceUnchecked_shouldDisableForcePeak() {
+        mController.mPeakRefreshRate = 88f;
+
+        mController.onPreferenceChange(mPreference, false);
+
+        assertThat(Settings.System.getFloat(mContext.getContentResolver(),
+                Settings.System.MIN_REFRESH_RATE, NO_CONFIG)).isEqualTo(NO_CONFIG);
+    }
+
+    @Test
+    public void updateState_enableForcePeak_shouldCheckedToggle() {
+        mController.mPeakRefreshRate = 88f;
+        mController.forcePeakRefreshRate(true);
+
+        mController.updateState(mPreference);
+
+        verify(mPreference).setChecked(true);
+    }
+
+    @Test
+    public void updateState_disableForcePeak_shouldUncheckedToggle() {
+        mController.mPeakRefreshRate = 88f;
+        mController.forcePeakRefreshRate(false);
+
+        mController.updateState(mPreference);
+
+        verify(mPreference).setChecked(false);
+    }
+
+    @Test
+    @Config(qualifiers = "mcc999")
+    public void isAvailable_withConfigNoShow_returnUnsupported() {
+        assertThat(mController.isAvailable()).isFalse();
+    }
+
+    @Test
+    public void isAvailable_refreshRateLargerThanDefault_returnTrue() {
+        mController.mPeakRefreshRate = DEFAULT_REFRESH_RATE + 1;
+
+        assertThat(mController.isAvailable()).isTrue();
+    }
+
+    @Test
+    public void getAvailabilityStatus_refreshRateEqualToDefault_returnFalse() {
+        mController.mPeakRefreshRate = DEFAULT_REFRESH_RATE;
+
+        assertThat(mController.isAvailable()).isFalse();
+    }
+
+    @Test
+    public void onDeveloperOptionsDisabled_shouldDisablePreference() {
+        mController.onDeveloperOptionsSwitchDisabled();
+
+        assertThat(Settings.System.getFloat(mContext.getContentResolver(),
+                Settings.System.MIN_REFRESH_RATE, -1f)).isEqualTo(NO_CONFIG);
+        assertThat(mPreference.isChecked()).isFalse();
+        assertThat(mPreference.isEnabled()).isFalse();
+    }
+}