Separate large pointer preference controller from accessibility

Bug: 135056871
Test: manual, robotest
Change-Id: Id8e81f70d5121a97b6766b444298379f7ce062ea

res/xml/accessibility_settings.xml

@@ -75,7 +75,8 @@
 
         <SwitchPreference
             android:key="toggle_large_pointer_icon"
-            android:title="@string/accessibility_toggle_large_pointer_icon_title"/>
+            android:title="@string/accessibility_toggle_large_pointer_icon_title"
+            settings:controller="com.android.settings.accessibility.LargePointerIconPreferenceController"/>
 
         <SwitchPreference
             android:key="toggle_disable_animations"

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

@@ -321,9 +321,6 @@ public class AccessibilitySettings extends DashboardFragment implements
         } else if (mTogglePowerButtonEndsCallPreference == preference) {
             handleTogglePowerButtonEndsCallPreferenceClick();
             return true;
-        } else if (mToggleLargePointerIconPreference == preference) {
-            handleToggleLargePointerIconPreferenceClick();
-            return true;
         } else if (mToggleMasterMonoPreference == preference) {
             handleToggleMasterMonoPreferenceClick();
             return true;
@@ -381,12 +378,6 @@ public class AccessibilitySettings extends DashboardFragment implements
                         : Settings.Secure.INCALL_POWER_BUTTON_BEHAVIOR_SCREEN_OFF));
     }
 
-    private void handleToggleLargePointerIconPreferenceClick() {
-        Settings.Secure.putInt(getContentResolver(),
-                Settings.Secure.ACCESSIBILITY_LARGE_POINTER_ICON,
-                mToggleLargePointerIconPreference.isChecked() ? 1 : 0);
-    }
-
     private void handleToggleMasterMonoPreferenceClick() {
         Settings.System.putIntForUser(getContentResolver(), Settings.System.MASTER_MONO,
                 mToggleMasterMonoPreference.isChecked() ? 1 : 0, UserHandle.USER_CURRENT);
@@ -415,8 +406,7 @@ public class AccessibilitySettings extends DashboardFragment implements
         }
 
         // Large pointer icon.
-        mToggleLargePointerIconPreference =
+        mToggleLargePointerIconPreference = findPreference(TOGGLE_LARGE_POINTER_ICON);
-                (SwitchPreference) findPreference(TOGGLE_LARGE_POINTER_ICON);
 
         mToggleDisableAnimationsPreference =
                 (SwitchPreference) findPreference(TOGGLE_DISABLE_ANIMATIONS);
@@ -699,10 +689,6 @@ public class AccessibilitySettings extends DashboardFragment implements
             mTogglePowerButtonEndsCallPreference.setChecked(powerButtonEndsCall);
         }
 
-        // Large pointer icon.
-        mToggleLargePointerIconPreference.setChecked(Settings.Secure.getInt(getContentResolver(),
-                Settings.Secure.ACCESSIBILITY_LARGE_POINTER_ICON, 0) != 0);
-
         // Master mono
         updateMasterMono();
 

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

@@ -0,0 +1,53 @@
+/*
+ * 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 androidx.annotation.VisibleForTesting;
+
+import com.android.settings.core.TogglePreferenceController;
+
+public class LargePointerIconPreferenceController extends TogglePreferenceController {
+
+    @VisibleForTesting
+    static final int ON = 1;
+    @VisibleForTesting
+    static final int OFF = 0;
+
+    public LargePointerIconPreferenceController(Context context, String preferenceKey) {
+        super(context, preferenceKey);
+    }
+
+    @Override
+    public boolean isChecked() {
+        return Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_LARGE_POINTER_ICON, OFF) != OFF;
+    }
+
+    @Override
+    public boolean setChecked(boolean isChecked) {
+        return Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_LARGE_POINTER_ICON, isChecked ? ON : OFF);
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return AVAILABLE;
+    }
+}

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

@@ -0,0 +1,96 @@
+/*
+ * 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.android.settings.accessibility.LargePointerIconPreferenceController.OFF;
+import static com.android.settings.accessibility.LargePointerIconPreferenceController.ON;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import android.content.Context;
+import android.provider.Settings;
+
+import androidx.preference.SwitchPreference;
+
+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 LargePointerIconPreferenceControllerTest {
+
+    private static final int UNKNOWN = -1;
+
+    private Context mContext;
+    private SwitchPreference mPreference;
+    private LargePointerIconPreferenceController mController;
+
+    @Before
+    public void setUp() {
+        mContext = RuntimeEnvironment.application;
+        mPreference = new SwitchPreference(mContext);
+        mController = new LargePointerIconPreferenceController(mContext, "large_pointer");
+    }
+
+    @Test
+    public void getAvailabilityStatus_shouldReturnAvailable() {
+        assertThat(mController.getAvailabilityStatus()).isEqualTo(
+                BasePreferenceController.AVAILABLE);
+    }
+
+    @Test
+    public void isChecked_enabledLargePointer_shouldReturnTrue() {
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_LARGE_POINTER_ICON, ON);
+
+        mController.updateState(mPreference);
+
+        assertThat(mController.isChecked()).isTrue();
+        assertThat(mPreference.isChecked()).isTrue();
+    }
+
+    @Test
+    public void isChecked_disabledLargePointer_shouldReturnFalse() {
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_LARGE_POINTER_ICON, OFF);
+
+        mController.updateState(mPreference);
+
+        assertThat(mController.isChecked()).isFalse();
+        assertThat(mPreference.isChecked()).isFalse();
+    }
+
+    @Test
+    public void setChecked_enabled_shouldEnableLargePointer() {
+        mController.setChecked(true);
+
+        assertThat(Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_LARGE_POINTER_ICON, UNKNOWN)).isEqualTo(ON);
+    }
+
+    @Test
+    public void setChecked_disabled_shouldDisableLargePointer() {
+        mController.setChecked(false);
+
+        assertThat(Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_LARGE_POINTER_ICON, UNKNOWN)).isEqualTo(OFF);
+    }
+}