Introduce SimulateColorSpacePreferenceController

- Create new SimulateColorSpacePreferenceController
 - Create controller inside the DashboardFragment
 - Port logic from DevelopmentSettings into the controller

Bug: 34203528
Test: make RunSettingsRoboTests -j40
Change-Id: I89044404b19c47a6e3ce4e9d86dd6806aadbd0b5

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

@@ -308,7 +308,7 @@ public class DevelopmentSettingsDashboardFragment extends RestrictedDashboardFra
         // debug non-rectangular clip operations
         controllers.add(new ForceMSAAPreferenceController(context));
         controllers.add(new HardwareOverlaysPreferenceController(context));
-        // simulate color space
+        controllers.add(new SimulateColorSpacePreferenceController(context));
         // set gpu renderer
         controllers.add(new UsbAudioRoutingPreferenceController(context));
         controllers.add(new StrictModePreferenceController(context));

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

@@ -0,0 +1,145 @@
+/*
+ * 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.ContentResolver;
+import android.content.Context;
+import android.content.res.Resources;
+import android.provider.Settings;
+import android.support.annotation.VisibleForTesting;
+import android.support.v7.preference.ListPreference;
+import android.support.v7.preference.Preference;
+import android.support.v7.preference.PreferenceScreen;
+import android.view.accessibility.AccessibilityManager;
+
+import com.android.settings.R;
+import com.android.settings.core.PreferenceControllerMixin;
+import com.android.settingslib.development.DeveloperOptionsPreferenceController;
+
+public class SimulateColorSpacePreferenceController extends
+        DeveloperOptionsPreferenceController implements
+        Preference.OnPreferenceChangeListener, PreferenceControllerMixin {
+
+    private static final String SIMULATE_COLOR_SPACE = "simulate_color_space";
+
+    @VisibleForTesting
+    static final int SETTING_VALUE_OFF = 0;
+    @VisibleForTesting
+    static final int SETTING_VALUE_ON = 1;
+
+    private ListPreference mPreference;
+
+    public SimulateColorSpacePreferenceController(Context context) {
+        super(context);
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return SIMULATE_COLOR_SPACE;
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+
+        mPreference = (ListPreference) screen.findPreference(getPreferenceKey());
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        writeSimulateColorSpace(newValue);
+        return true;
+    }
+
+    @Override
+    public void updateState(Preference preference) {
+        updateSimulateColorSpace();
+    }
+
+    @Override
+    protected void onDeveloperOptionsSwitchEnabled() {
+        mPreference.setEnabled(true);
+    }
+
+    @Override
+    public void onDeveloperOptionsDisabled() {
+        if (usingDevelopmentColorSpace()) {
+            writeSimulateColorSpace(-1);
+        }
+        mPreference.setEnabled(false);
+    }
+
+    private void updateSimulateColorSpace() {
+        final ContentResolver cr = mContext.getContentResolver();
+        final boolean enabled = Settings.Secure.getInt(
+                cr, Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED, SETTING_VALUE_OFF)
+                != SETTING_VALUE_OFF;
+        if (enabled) {
+            final String mode = Integer.toString(Settings.Secure.getInt(
+                    cr, Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER,
+                    AccessibilityManager.DALTONIZER_DISABLED));
+            mPreference.setValue(mode);
+            final int index = mPreference.findIndexOfValue(mode);
+            if (index < 0) {
+                final Resources res = mContext.getResources();
+                // We're using a mode controlled by accessibility preferences.
+                mPreference.setSummary(res.getString(R.string.daltonizer_type_overridden,
+                        res.getString(R.string.accessibility_display_daltonizer_preference_title)));
+            } else {
+                mPreference.setSummary("%s");
+            }
+        } else {
+            mPreference.setValue(
+                    Integer.toString(AccessibilityManager.DALTONIZER_DISABLED));
+        }
+    }
+
+    private void writeSimulateColorSpace(Object value) {
+        final ContentResolver cr = mContext.getContentResolver();
+        final int newMode = Integer.parseInt(value.toString());
+        if (newMode < 0) {
+            Settings.Secure.putInt(cr, Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED,
+                    SETTING_VALUE_OFF);
+        } else {
+            Settings.Secure.putInt(cr, Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED,
+                    SETTING_VALUE_ON);
+            Settings.Secure.putInt(cr, Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER, newMode);
+        }
+    }
+
+    /**
+     * @return <code>true</code> if the color space preference is currently
+     * controlled by development settings
+     */
+    private boolean usingDevelopmentColorSpace() {
+        final ContentResolver cr = mContext.getContentResolver();
+        final boolean enabled = Settings.Secure.getInt(
+                cr, Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED, SETTING_VALUE_OFF)
+                != SETTING_VALUE_OFF;
+        if (enabled) {
+            final String mode = Integer.toString(Settings.Secure.getInt(
+                    cr, Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER,
+                    AccessibilityManager.DALTONIZER_DISABLED));
+            final int index = mPreference.findIndexOfValue(mode);
+            if (index >= 0) {
+                // We're using a mode controlled by developer preferences.
+                return true;
+            }
+        }
+        return false;
+    }
+}

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

@@ -0,0 +1,174 @@
+/*
+ * 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.android.settings.development.SimulateColorSpacePreferenceController
+        .SETTING_VALUE_OFF;
+import static com.android.settings.development.SimulateColorSpacePreferenceController
+        .SETTING_VALUE_ON;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+import android.content.res.Resources;
+import android.provider.Settings;
+import android.support.v7.preference.ListPreference;
+import android.support.v7.preference.PreferenceScreen;
+
+import com.android.settings.R;
+import com.android.settings.TestConfig;
+import com.android.settings.testutils.SettingsRobolectricTestRunner;
+
+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)
+public class SimulateColorSpacePreferenceControllerTest {
+
+    @Mock
+    private ListPreference mPreference;
+    @Mock
+    private PreferenceScreen mScreen;
+
+    /**
+     * 0: Disabled
+     * 1: Monochromacy
+     * 2: Deuteranomaly (red-green)
+     * 3: Protanomaly (red-green)
+     * 4: Tritanomaly (blue-yellow)
+     */
+    private String[] mListValues;
+    private Context mContext;
+    private SimulateColorSpacePreferenceController mController;
+
+    @Before
+    public void setup() {
+        MockitoAnnotations.initMocks(this);
+        mContext = RuntimeEnvironment.application;
+        mListValues = mContext.getResources().getStringArray(R.array.simulate_color_space_values);
+        mController = new SimulateColorSpacePreferenceController(mContext);
+        when(mScreen.findPreference(mController.getPreferenceKey())).thenReturn(mPreference);
+        mController.displayPreference(mScreen);
+    }
+
+    @Test
+    public void onPreferenceChange_disabledSelected_shouldTurnOffPreference()
+            throws Settings.SettingNotFoundException {
+        mController.onPreferenceChange(mPreference, mListValues[0]);
+
+        final int enabled = Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED);
+
+        assertThat(enabled).isEqualTo(SETTING_VALUE_OFF);
+    }
+
+    @Test
+    public void onPreferenceChange_monochromacySelected_shouldEnableAndSelectPreference()
+            throws Settings.SettingNotFoundException {
+        mController.onPreferenceChange(mPreference, mListValues[1]);
+
+        final int enabled = Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED);
+        final int settingValue = Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER);
+
+        assertThat(enabled).isEqualTo(SETTING_VALUE_ON);
+        assertThat(settingValue).isEqualTo(Integer.valueOf(mListValues[1]));
+    }
+
+    @Test
+    public void updateState_settingOff_shouldSetValueToDisabled() {
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED, SETTING_VALUE_OFF);
+
+        mController.updateState(mPreference);
+
+        verify(mPreference).setValue(mListValues[0]);
+    }
+
+    @Test
+    public void updateState_settingOnMonochromacyEnabled_shouldSelectMonochromacy() {
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED, SETTING_VALUE_ON);
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER, Integer.valueOf(mListValues[1]));
+
+        mController.updateState(mPreference);
+
+        verify(mPreference).setValue(mListValues[1]);
+        verify(mPreference).setSummary("%s");
+    }
+
+    @Test
+    public void updateState_settingOnControlledByAccessibility_shouldSetOverridedSummary() {
+        Resources res = mContext.getResources();
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED, SETTING_VALUE_ON);
+        when(mPreference.findIndexOfValue(anyString())).thenReturn(-1);
+
+        mController.updateState(mPreference);
+
+        verify(mPreference).setSummary(res.getString(R.string.daltonizer_type_overridden,
+                res.getString(R.string.accessibility_display_daltonizer_preference_title)));
+    }
+
+    @Test
+    public void onDeveloperOptionsSwitchDisabled_notControlledByDevOptions_shouldDisableAndReset()
+            throws Settings.SettingNotFoundException {
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED, SETTING_VALUE_ON);
+        when(mPreference.findIndexOfValue(anyString())).thenReturn(-1);
+
+        mController.onDeveloperOptionsDisabled();
+
+        final int settingValue = Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED);
+        assertThat(settingValue).isEqualTo(SETTING_VALUE_ON);
+        verify(mPreference).setEnabled(false);
+    }
+
+    @Test
+    public void onDeveloperOptionsSwitchDisabled_controlledByDevOptions_shouldDisableAndNotReset()
+            throws Settings.SettingNotFoundException {
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED, SETTING_VALUE_ON);
+
+        mController.onDeveloperOptionsDisabled();
+
+        final int settingValue = Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED);
+        assertThat(settingValue).isEqualTo(SETTING_VALUE_OFF);
+        verify(mPreference).setEnabled(false);
+    }
+
+    @Test
+    public void onDeveloperOptionsSwitchEnabled_shouldEnablePreference() {
+        mController.onDeveloperOptionsSwitchEnabled();
+
+        verify(mPreference).setEnabled(true);
+    }
+}