Separate daltonizer preference controller form accessibility

Bug: 135056871
Test: manual, robotests
Change-Id: Ibc730004f1a25a2e97abcc0bbad2dfc9b420d645

res/xml/accessibility_settings.xml

@@ -173,11 +173,11 @@
             settings:controller="com.android.settings.accessibility.HighTextContrastPreferenceController"/>
 
         <Preference
-            android:fragment="com.android.settings.accessibility.ToggleDaltonizerPreferenceFragment"
             android:key="daltonizer_preference"
             android:title="@string/accessibility_display_daltonizer_preference_title"
             android:icon="@drawable/ic_daltonizer"
-            settings:searchable="false"/>
+            android:fragment="com.android.settings.accessibility.ToggleDaltonizerPreferenceFragment"
+            settings:controller="com.android.settings.accessibility.DaltonizerPreferenceController"/>
 
         <SwitchPreference
             android:key="toggle_inversion_preference"

src/com/android/settings/accessibility/AccessibilitySettings.java

@@ -607,18 +607,9 @@ public class AccessibilitySettings extends DashboardFragment implements
 
         mLiveCaptionPreferenceController.updateState(mLiveCaptionPreference);
 
-        updateFeatureSummary(Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED,
-                mDisplayDaltonizerPreferenceScreen);
-
         updateAccessibilityShortcut(mAccessibilityShortcutPreferenceScreen);
     }
 
-    private void updateFeatureSummary(String prefKey, Preference pref) {
-        final boolean enabled = Settings.Secure.getInt(getContentResolver(), prefKey, 0) == 1;
-        pref.setSummary(enabled ? R.string.accessibility_feature_state_on
-                : R.string.accessibility_feature_state_off);
-    }
-
     private void updateAccessibilityShortcut(Preference preference) {
         if (AccessibilityManager.getInstance(getActivity())
                 .getInstalledAccessibilityServiceList().isEmpty()) {

src/com/android/settings/accessibility/AccessibilityUtil.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2019 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.accessibility;
+
+import android.content.Context;
+import android.provider.Settings;
+
+import com.android.settings.R;
+
+public class AccessibilityUtil {
+    /**
+     * Return On/Off string according to the setting which specifies the integer value 1 or 0. This
+     * setting is defined in the secure system settings {@link android.provider.Settings.Secure}.
+     */
+    static CharSequence getSummary(Context context, String settingsSecureKey) {
+        final boolean enabled = Settings.Secure.getInt(context.getContentResolver(),
+                settingsSecureKey, 0) == 1;
+        final int resId = enabled ? R.string.accessibility_feature_state_on
+                : R.string.accessibility_feature_state_off;
+        return context.getResources().getText(resId);
+    }
+}

src/com/android/settings/accessibility/CaptioningPreferenceController.java

@@ -19,7 +19,6 @@ package com.android.settings.accessibility;
 import android.content.Context;
 import android.provider.Settings;
 
-import com.android.settings.R;
 import com.android.settings.core.BasePreferenceController;
 
 public class CaptioningPreferenceController extends BasePreferenceController {
@@ -35,10 +34,7 @@ public class CaptioningPreferenceController extends BasePreferenceController {
 
     @Override
     public CharSequence getSummary() {
-        final boolean enabled = Settings.Secure.getInt(mContext.getContentResolver(),
+        return AccessibilityUtil.getSummary(mContext,
-                Settings.Secure.ACCESSIBILITY_CAPTIONING_ENABLED, 0) == 1;
+                Settings.Secure.ACCESSIBILITY_CAPTIONING_ENABLED);
-        final int resId = enabled ? R.string.accessibility_feature_state_on
-                : R.string.accessibility_feature_state_off;
-        return mContext.getResources().getText(resId);
     }
 }

src/com/android/settings/accessibility/DaltonizerPreferenceController.java

@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2019 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.accessibility;
+
+import android.content.Context;
+import android.provider.Settings;
+
+import com.android.settings.core.BasePreferenceController;
+
+public class DaltonizerPreferenceController extends BasePreferenceController {
+
+    public DaltonizerPreferenceController(Context context, String preferenceKey) {
+        super(context, preferenceKey);
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return AVAILABLE_UNSEARCHABLE;
+    }
+
+    @Override
+    public CharSequence getSummary() {
+        return AccessibilityUtil.getSummary(mContext,
+                Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED);
+    }
+}

tests/robotests/src/com/android/settings/accessibility/AccessibilityUtilTest.java

@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2019 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.accessibility;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import android.content.Context;
+import android.provider.Settings;
+
+import com.android.settings.R;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
+
+@RunWith(RobolectricTestRunner.class)
+public class AccessibilityUtilTest {
+    private static final int ON = 1;
+    private static final int OFF = 0;
+    private static final String SECURE_TEST_KEY = "secure_test_key";
+    private Context mContext;
+
+    @Before
+    public void setUp() {
+        mContext = RuntimeEnvironment.application;
+    }
+
+    @Test
+    public void getSummary_hasValueAndEqualsToOne_shouldReturnOnString() {
+        Settings.Secure.putInt(mContext.getContentResolver(), SECURE_TEST_KEY, ON);
+
+        final CharSequence result = AccessibilityUtil.getSummary(mContext, SECURE_TEST_KEY);
+
+        assertThat(result)
+                .isEqualTo(mContext.getText(R.string.accessibility_feature_state_on));
+    }
+
+    @Test
+    public void getSummary_hasValueAndEqualsToZero_shouldReturnOffString() {
+        Settings.Secure.putInt(mContext.getContentResolver(), SECURE_TEST_KEY, OFF);
+
+        final CharSequence result = AccessibilityUtil.getSummary(mContext, SECURE_TEST_KEY);
+
+        assertThat(result)
+                .isEqualTo(mContext.getText(R.string.accessibility_feature_state_off));
+    }
+
+    @Test
+    public void getSummary_noValue_shouldReturnOffString() {
+        final CharSequence result = AccessibilityUtil.getSummary(mContext, SECURE_TEST_KEY);
+
+        assertThat(result)
+                .isEqualTo(mContext.getText(R.string.accessibility_feature_state_off));
+    }
+}

tests/robotests/src/com/android/settings/accessibility/DaltonizerPreferenceControllerTest.java

@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2019 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.accessibility;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import android.content.Context;
+import android.provider.Settings;
+
+import com.android.settings.R;
+import com.android.settings.core.BasePreferenceController;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
+
+@RunWith(RobolectricTestRunner.class)
+public class DaltonizerPreferenceControllerTest {
+    private static final int ON = 1;
+    private static final int OFF = 0;
+
+    private Context mContext;
+    private DaltonizerPreferenceController mController;
+
+    @Before
+    public void setUp() {
+        mContext = RuntimeEnvironment.application;
+        mController = new DaltonizerPreferenceController(mContext, "color_correction");
+    }
+
+    @Test
+    public void getAvailabilityStatus_shouldReturnAvailableUnsearchable() {
+        assertThat(mController.getAvailabilityStatus())
+                .isEqualTo(BasePreferenceController.AVAILABLE_UNSEARCHABLE);
+    }
+
+    @Test
+    public void getSummary_enabledColorCorrection_shouldReturnOnSummary() {
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED, ON);
+
+        assertThat(mController.getSummary())
+                .isEqualTo(mContext.getText(R.string.accessibility_feature_state_on));
+    }
+
+    @Test
+    public void getSummary_disabledColorCorrection_shouldReturnOffSummary() {
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED, OFF);
+
+        assertThat(mController.getSummary())
+                .isEqualTo(mContext.getText(R.string.accessibility_feature_state_off));
+    }
+}