Index the gesture options in System Navigation Settings page

Fixes: 167536360
Test: manual verify & robotest
Change-Id: Ie1a24a7206153dc1405f8a28369a6bade11ddd39

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

@@ -28,6 +28,7 @@ import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.om.IOverlayManager;
 import android.content.om.OverlayInfo;
+import android.content.res.Resources;
 import android.os.Bundle;
 import android.os.RemoteException;
 import android.os.ServiceManager;
@@ -49,6 +50,7 @@ import com.android.settings.support.actionbar.HelpResourceProvider;
 import com.android.settings.utils.CandidateInfoExtra;
 import com.android.settings.widget.RadioButtonPickerFragment;
 import com.android.settingslib.search.SearchIndexable;
+import com.android.settingslib.search.SearchIndexableRaw;
 import com.android.settingslib.widget.CandidateInfo;
 import com.android.settingslib.widget.IllustrationPreference;
 import com.android.settingslib.widget.SelectorWithWidgetPreference;
@@ -320,6 +322,39 @@ public class SystemNavigationGestureSettings extends RadioButtonPickerFragment i
                 protected boolean isPageSearchEnabled(Context context) {
                     return SystemNavigationPreferenceController.isGestureAvailable(context);
                 }
+
+                @Override
+                public List<SearchIndexableRaw> getRawDataToIndex(Context context,
+                        boolean enabled) {
+                    final Resources res = context.getResources();
+                    final List<SearchIndexableRaw> result = new ArrayList<>();
+
+                    if (SystemNavigationPreferenceController.isOverlayPackageAvailable(context,
+                            NAV_BAR_MODE_GESTURAL_OVERLAY)) {
+                        SearchIndexableRaw data = new SearchIndexableRaw(context);
+                        data.title = res.getString(R.string.edge_to_edge_navigation_title);
+                        data.key = KEY_SYSTEM_NAV_GESTURAL;
+                        result.add(data);
+                    }
+
+                    if (SystemNavigationPreferenceController.isOverlayPackageAvailable(context,
+                            NAV_BAR_MODE_2BUTTON_OVERLAY)) {
+                        SearchIndexableRaw data = new SearchIndexableRaw(context);
+                        data.title = res.getString(R.string.swipe_up_to_switch_apps_title);
+                        data.key = KEY_SYSTEM_NAV_2BUTTONS;
+                        result.add(data);
+                    }
+
+                    if (SystemNavigationPreferenceController.isOverlayPackageAvailable(context,
+                            NAV_BAR_MODE_3BUTTON_OVERLAY)) {
+                        SearchIndexableRaw data = new SearchIndexableRaw(context);
+                        data.title = res.getString(R.string.legacy_navigation_title);
+                        data.key = KEY_SYSTEM_NAV_3BUTTONS;
+                        result.add(data);
+                    }
+
+                    return result;
+                }
             };
 
     // From HelpResourceProvider

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

@@ -34,6 +34,7 @@ import static junit.framework.Assert.assertEquals;
 
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
@@ -41,10 +42,14 @@ import static org.mockito.Mockito.when;
 import android.content.Context;
 import android.content.om.IOverlayManager;
 import android.content.om.OverlayInfo;
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.PackageManager.NameNotFoundException;
 import android.provider.SearchIndexableResource;
 
 import com.android.internal.R;
 import com.android.settings.testutils.shadow.SettingsShadowResources;
+import com.android.settingslib.search.SearchIndexableRaw;
 
 import org.junit.Before;
 import org.junit.Test;
@@ -67,6 +72,8 @@ public class SystemNavigationGestureSettingsTest {
     @Mock
     private IOverlayManager mOverlayManager;
     @Mock
+    private PackageManager mPackageManager;
+    @Mock
     private OverlayInfo mOverlayInfoEnabled;
     @Mock
     private OverlayInfo mOverlayInfoDisabled;
@@ -75,16 +82,17 @@ public class SystemNavigationGestureSettingsTest {
     public void setUp() throws Exception {
         MockitoAnnotations.initMocks(this);
 
-        mContext = RuntimeEnvironment.application;
+        mContext = spy(RuntimeEnvironment.application);
         mSettings = new SystemNavigationGestureSettings();
 
         when(mOverlayInfoDisabled.isEnabled()).thenReturn(false);
         when(mOverlayInfoEnabled.isEnabled()).thenReturn(true);
         when(mOverlayManager.getOverlayInfo(any(), anyInt())).thenReturn(mOverlayInfoDisabled);
+        when(mContext.getPackageManager()).thenReturn(mPackageManager);
     }
 
     @Test
-    public void testSearchIndexProvider_shouldIndexResource() {
+    public void searchIndexProvider_shouldIndexResource() {
         final List<SearchIndexableResource> indexRes =
                 SystemNavigationGestureSettings.SEARCH_INDEX_DATA_PROVIDER.getXmlResourcesToIndex(
                         RuntimeEnvironment.application, true /* enabled */);
@@ -93,6 +101,29 @@ public class SystemNavigationGestureSettingsTest {
         assertThat(indexRes.get(0).xmlResId).isEqualTo(mSettings.getPreferenceScreenResId());
     }
 
+    @Test
+    public void searchIndexProvider_gesturePackageExist_shouldBeIndexed()
+            throws NameNotFoundException {
+        PackageInfo info = new PackageInfo();
+        when(mPackageManager.getPackageInfo(NAV_BAR_MODE_GESTURAL_OVERLAY, 0))
+                .thenReturn(info);
+
+        final List<SearchIndexableRaw> indexRaws =
+                SystemNavigationGestureSettings.SEARCH_INDEX_DATA_PROVIDER
+                        .getRawDataToIndex(mContext, true /* enabled */);
+
+        assertThat(indexRaws).isNotEmpty();
+    }
+
+    @Test
+    public void searchIndexProvider_noNavigationPackageExist_shouldReturnEmpty() {
+        final List<SearchIndexableRaw> indexRaws =
+                SystemNavigationGestureSettings.SEARCH_INDEX_DATA_PROVIDER
+                        .getRawDataToIndex(mContext, true /* enabled */);
+
+        assertThat(indexRaws).isEmpty();
+    }
+
     @Test
     public void testGetCurrentSystemNavigationMode() {
         SettingsShadowResources.overrideResource(