Suppress prevent ringer gesture parent page in search.

The full page verion of prevent ringing is still searchable.

- Created a new controller for parent entry.
- On the child controller, inherit the same getAvailabilityStatus() but
  override AVILABLE_UNSEARCHABLE to AVAILABLE so it becomes searchable.

Fixes: 72748524
Test: existing robotests for PreventRingingPreferenceController

Change-Id: Id2454db110c81b59fa4a98338602b03de0812f8a

res/xml/gestures.xml

@@ -67,6 +67,6 @@
         android:key="gesture_prevent_ringing_summary"
         android:title="@string/gesture_prevent_ringing_screen_title"
         android:fragment="com.android.settings.gestures.PreventRingingGestureSettings"
-        settings:controller="com.android.settings.gestures.PreventRingingPreferenceController" />
+        settings:controller="com.android.settings.gestures.PreventRingingParentPreferenceController" />
 
 </PreferenceScreen>

res/xml/sound_settings.xml

@@ -101,7 +101,7 @@
         android:title="@string/gesture_prevent_ringing_sound_title"
         android:order="-110"
         android:fragment="com.android.settings.gestures.PreventRingingGestureSettings"
-        settings:controller="com.android.settings.gestures.PreventRingingPreferenceController" />
+        settings:controller="com.android.settings.gestures.PreventRingingParentPreferenceController" />
 
     <!-- Phone ringtone -->
     <com.android.settings.DefaultRingtonePreference

src/com/android/settings/gestures/PreventRingingParentPreferenceController.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2018 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.gestures;
+
+import android.content.Context;
+
+import com.android.settings.core.BasePreferenceController;
+
+public class PreventRingingParentPreferenceController extends BasePreferenceController {
+
+    public PreventRingingParentPreferenceController(Context context, String preferenceKey) {
+        super(context, preferenceKey);
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return mContext.getResources().getBoolean(
+                com.android.internal.R.bool.config_volumeHushGestureEnabled)
+                ? AVAILABLE_UNSEARCHABLE : UNSUPPORTED_ON_DEVICE;
+    }
+
+}

src/com/android/settings/gestures/PreventRingingPreferenceController.java

@@ -24,14 +24,8 @@ import static android.provider.Settings.Secure.VOLUME_HUSH_VIBRATE;
 import android.content.Context;
 import android.os.Bundle;
 import android.provider.Settings;
-import androidx.annotation.VisibleForTesting;
-import androidx.preference.ListPreference;
-import androidx.preference.Preference;
-import androidx.preference.PreferenceScreen;
 
 import com.android.settings.R;
-import com.android.settings.core.BasePreferenceController;
-import com.android.settings.core.PreferenceControllerMixin;
 import com.android.settings.widget.VideoPreference;
 import com.android.settingslib.core.lifecycle.LifecycleObserver;
 import com.android.settingslib.core.lifecycle.events.OnCreate;
@@ -39,8 +33,13 @@ import com.android.settingslib.core.lifecycle.events.OnPause;
 import com.android.settingslib.core.lifecycle.events.OnResume;
 import com.android.settingslib.core.lifecycle.events.OnSaveInstanceState;
 
-public class PreventRingingPreferenceController extends BasePreferenceController
+import androidx.annotation.VisibleForTesting;
-        implements PreferenceControllerMixin, Preference.OnPreferenceChangeListener,
+import androidx.preference.ListPreference;
+import androidx.preference.Preference;
+import androidx.preference.PreferenceScreen;
+
+public class PreventRingingPreferenceController extends PreventRingingParentPreferenceController
+        implements Preference.OnPreferenceChangeListener,
         LifecycleObserver, OnResume, OnPause, OnCreate, OnSaveInstanceState {
 
     private static final String PREF_KEY_VIDEO = "gesture_prevent_ringing_video";
@@ -59,9 +58,11 @@ public class PreventRingingPreferenceController extends BasePreferenceController
 
     @Override
     public int getAvailabilityStatus() {
-        return mContext.getResources().getBoolean(
+        final int status = super.getAvailabilityStatus();
-                com.android.internal.R.bool.config_volumeHushGestureEnabled)
+        if (status == AVAILABLE_UNSEARCHABLE) {
-                ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
+            return AVAILABLE;
+        }
+        return status;
     }
 
     @Override

tests/robotests/src/com/android/settings/gestures/PreventRingingParentPreferenceControllerTest.java

@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2018 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.gestures;
+
+import static com.android.settings.core.BasePreferenceController.AVAILABLE_UNSEARCHABLE;
+import static com.google.common.truth.Truth.assertThat;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+import android.content.res.Resources;
+
+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;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+public class PreventRingingParentPreferenceControllerTest {
+
+    @Mock
+    private Resources mResources;
+
+    private Context mContext;
+    private PreventRingingParentPreferenceController mController;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mContext = spy(RuntimeEnvironment.application);
+        when(mContext.getResources()).thenReturn(mResources);
+
+        mController = new PreventRingingParentPreferenceController(mContext, "test_key");
+    }
+
+    @Test
+    public void testIsAvailable_configIsTrue_shouldAvailableUnSearchable() {
+        when(mResources.getBoolean(
+                com.android.internal.R.bool.config_volumeHushGestureEnabled)).thenReturn(true);
+
+        assertThat(mController.getAvailabilityStatus()).isEqualTo(AVAILABLE_UNSEARCHABLE);
+    }
+
+    @Test
+    public void testIsAvailable_configIsFalse_shouldReturnFalse() {
+        when(mResources.getBoolean(
+                com.android.internal.R.bool.config_volumeHushGestureEnabled)).thenReturn(false);
+
+        assertThat(mController.isAvailable()).isFalse();
+    }
+}