Combine Language & region and Input & gestures in System settings.

Merge preferences into one page, and update test.

Bug: 34976047
Test: make RunSettingsRoboTests
Change-Id: I5f15192e42f6054c02d4c8ffa9f25db3075da409
diff --git a/src/com/android/settings/Settings.java b/src/com/android/settings/Settings.java
index dfa291c..e669454 100644
--- a/src/com/android/settings/Settings.java
+++ b/src/com/android/settings/Settings.java
@@ -41,14 +41,13 @@
     public static class WifiSettingsActivity extends SettingsActivity { /* empty */ }
     public static class WifiP2pSettingsActivity extends SettingsActivity { /* empty */ }
     public static class InputMethodAndLanguageSettingsActivity extends SettingsActivity { /* empty */ }
-    public static class InputAndGestureSettingsActivity extends SettingsActivity { /* empty */ }
     public static class AvailableVirtualKeyboardActivity extends SettingsActivity { /* empty */ }
     public static class KeyboardLayoutPickerActivity extends SettingsActivity { /* empty */ }
     public static class PhysicalKeyboardActivity extends SettingsActivity { /* empty */ }
     public static class InputMethodAndSubtypeEnablerActivity extends SettingsActivity { /* empty */ }
     public static class SpellCheckersSettingsActivity extends SettingsActivity { /* empty */ }
     public static class LocalePickerActivity extends SettingsActivity { /* empty */ }
-    public static class LanguageAndRegionSettingsActivity extends SettingsActivity { /* empty */ }
+    public static class LanguageAndInputSettingsActivity extends SettingsActivity { /* empty */ }
     public static class UserDictionarySettingsActivity extends SettingsActivity { /* empty */ }
     public static class DisplaySettingsActivity extends SettingsActivity { /* empty */ }
     public static class NightDisplaySettingsActivity extends SettingsActivity { /* empty */ }
diff --git a/src/com/android/settings/core/gateway/SettingsGateway.java b/src/com/android/settings/core/gateway/SettingsGateway.java
index 818e45f..6136bbf 100644
--- a/src/com/android/settings/core/gateway/SettingsGateway.java
+++ b/src/com/android/settings/core/gateway/SettingsGateway.java
@@ -88,13 +88,12 @@
 import com.android.settings.gestures.PickupGestureSettings;
 import com.android.settings.gestures.SwipeToNotificationSettings;
 import com.android.settings.inputmethod.AvailableVirtualKeyboardFragment;
-import com.android.settings.inputmethod.InputAndGestureSettings;
 import com.android.settings.inputmethod.InputMethodAndLanguageSettings;
 import com.android.settings.inputmethod.KeyboardLayoutPickerFragment;
 import com.android.settings.inputmethod.PhysicalKeyboardFragment;
 import com.android.settings.inputmethod.SpellCheckersSettings;
 import com.android.settings.inputmethod.UserDictionaryList;
-import com.android.settings.language.LanguageAndRegionSettings;
+import com.android.settings.language.LanguageAndInputSettings;
 import com.android.settings.localepicker.LocaleListEditor;
 import com.android.settings.location.LocationSettings;
 import com.android.settings.network.NetworkDashboardFragment;
@@ -149,8 +148,7 @@
             LocaleListEditor.class.getName(),
             InputMethodAndLanguageSettings.class.getName(),
             AvailableVirtualKeyboardFragment.class.getName(),
-            InputAndGestureSettings.class.getName(),
-            LanguageAndRegionSettings.class.getName(),
+            LanguageAndInputSettings.class.getName(),
             SpellCheckersSettings.class.getName(),
             UserDictionaryList.class.getName(),
             UserDictionarySettings.class.getName(),
@@ -299,8 +297,7 @@
             // Home page > Security
             "com.android.settings.LocationDashboardAlias",
             // Home page > System
-            Settings.LanguageAndRegionSettingsActivity.class.getName(),
-            Settings.InputAndGestureSettingsActivity.class.getName(),
+            Settings.LanguageAndInputSettingsActivity.class.getName(),
             "com.android.settings.DateTimeDashboardAlias",
             "com.android.settings.AccessibilityDashboardAlias",
             "com.android.settings.AboutDeviceDashboardAlias",
diff --git a/src/com/android/settings/dashboard/DashboardFragmentRegistry.java b/src/com/android/settings/dashboard/DashboardFragmentRegistry.java
index a315836..4d0b8cf 100644
--- a/src/com/android/settings/dashboard/DashboardFragmentRegistry.java
+++ b/src/com/android/settings/dashboard/DashboardFragmentRegistry.java
@@ -28,9 +28,8 @@
 import com.android.settings.connecteddevice.ConnectedDeviceDashboardFragment;
 import com.android.settings.deviceinfo.StorageDashboardFragment;
 import com.android.settings.fuelgauge.PowerUsageSummary;
-import com.android.settings.inputmethod.InputAndGestureSettings;
 import com.android.settings.inputmethod.InputMethodAndLanguageSettings;
-import com.android.settings.language.LanguageAndRegionSettings;
+import com.android.settings.language.LanguageAndInputSettings;
 import com.android.settings.network.NetworkDashboardFragment;
 import com.android.settings.notification.SoundSettings;
 import com.android.settings.system.SystemDashboardFragment;
@@ -81,11 +80,9 @@
                 CategoryKey.CATEGORY_ACCOUNT);
         PARENT_TO_CATEGORY_KEY_MAP.put(
                 SystemDashboardFragment.class.getName(), CategoryKey.CATEGORY_SYSTEM);
-        PARENT_TO_CATEGORY_KEY_MAP.put(
-                InputAndGestureSettings.class.getName(), CategoryKey.CATEGORY_SYSTEM_INPUT);
         PARENT_TO_CATEGORY_KEY_MAP.put(InputMethodAndLanguageSettings.class.getName(),
                 CategoryKey.CATEGORY_SYSTEM_LANGUAGE);
-        PARENT_TO_CATEGORY_KEY_MAP.put(LanguageAndRegionSettings.class.getName(),
+        PARENT_TO_CATEGORY_KEY_MAP.put(LanguageAndInputSettings.class.getName(),
                 CategoryKey.CATEGORY_SYSTEM_LANGUAGE);
         PARENT_TO_CATEGORY_KEY_MAP.put(DevelopmentSettings.class.getName(),
                 CategoryKey.CATEGORY_SYSTEM_DEVELOPMENT);
diff --git a/src/com/android/settings/inputmethod/InputAndGestureSettings.java b/src/com/android/settings/language/LanguageAndInputSettings.java
similarity index 79%
rename from src/com/android/settings/inputmethod/InputAndGestureSettings.java
rename to src/com/android/settings/language/LanguageAndInputSettings.java
index 5b2c51a..4f82eb8 100644
--- a/src/com/android/settings/inputmethod/InputAndGestureSettings.java
+++ b/src/com/android/settings/language/LanguageAndInputSettings.java
@@ -14,11 +14,12 @@
  * limitations under the License.
  */
 
-package com.android.settings.inputmethod;
+package com.android.settings.language;
 
 import android.content.Context;
 import android.os.UserHandle;
 import android.provider.SearchIndexableResource;
+import android.speech.tts.TtsEngines;
 import android.support.annotation.VisibleForTesting;
 
 import com.android.internal.hardware.AmbientDisplayConfiguration;
@@ -31,6 +32,8 @@
 import com.android.settings.gestures.DoubleTapScreenPreferenceController;
 import com.android.settings.gestures.DoubleTwistPreferenceController;
 import com.android.settings.gestures.PickupGesturePreferenceController;
+import com.android.settings.inputmethod.GameControllerPreferenceController;
+import com.android.settings.inputmethod.SpellCheckerPreferenceController;
 import com.android.settings.gestures.SwipeToNotificationPreferenceController;
 import com.android.settings.overlay.FeatureFactory;
 import com.android.settings.search.BaseSearchIndexProvider;
@@ -39,15 +42,15 @@
 import java.util.Arrays;
 import java.util.List;
 
-public class InputAndGestureSettings extends DashboardFragment {
+public class LanguageAndInputSettings extends DashboardFragment {
 
-    private static final String TAG = "InputAndGestureSettings";
+    private static final String TAG = "LangAndInputSettings";
 
     private AmbientDisplayConfiguration mAmbientDisplayConfig;
 
     @Override
     public int getMetricsCategory() {
-        return MetricsProto.MetricsEvent.SETTINGS_INPUT_CATEGORY;
+        return MetricsProto.MetricsEvent.SETTINGS_LANGUAGE_CATEGORY;
     }
 
     @Override
@@ -56,13 +59,26 @@
     }
 
     @Override
+    public void onAttach(Context context) {
+        super.onAttach(context);
+        mProgressiveDisclosureMixin.setTileLimit(2);
+    }
+
+    @Override
     protected int getPreferenceScreenResId() {
-        return R.xml.input_and_gesture;
+        return R.xml.language_and_input;
     }
 
     @Override
     protected List<PreferenceController> getPreferenceControllers(Context context) {
         final Lifecycle lifecycle = getLifecycle();
+        final List<PreferenceController> controllers = new ArrayList<>();
+        // Language
+        controllers.add(new PhoneLanguagePreferenceController(context));
+        controllers.add(new SpellCheckerPreferenceController(context));
+        controllers.add(new UserDictionaryPreferenceController(context));
+        controllers.add(new TtsPreferenceController(context, new TtsEngines(context)));
+        // Input
         final GameControllerPreferenceController gameControllerPreferenceController
                 = new GameControllerPreferenceController(context);
         getLifecycle().addObserver(gameControllerPreferenceController);
@@ -70,7 +86,6 @@
         if (mAmbientDisplayConfig == null) {
             mAmbientDisplayConfig = new AmbientDisplayConfiguration(context);
         }
-        final List<PreferenceController> controllers = new ArrayList<>();
         controllers.add(gameControllerPreferenceController);
         // Gestures
 
@@ -99,7 +114,7 @@
                         return null;
                     }
                     final SearchIndexableResource sir = new SearchIndexableResource(context);
-                    sir.xmlResId = R.xml.input_and_gesture;
+                    sir.xmlResId = R.xml.language_and_input;
                     return Arrays.asList(sir);
                 }
             };
diff --git a/src/com/android/settings/language/LanguageAndRegionSettings.java b/src/com/android/settings/language/LanguageAndRegionSettings.java
deleted file mode 100644
index 649b2ff..0000000
--- a/src/com/android/settings/language/LanguageAndRegionSettings.java
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * Copyright (C) 2016 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.language;
-
-import android.content.Context;
-import android.speech.tts.TtsEngines;
-
-import com.android.internal.logging.nano.MetricsProto;
-import com.android.settings.R;
-import com.android.settings.core.PreferenceController;
-import com.android.settings.dashboard.DashboardFragment;
-import com.android.settings.inputmethod.SpellCheckerPreferenceController;
-
-import java.util.ArrayList;
-import java.util.List;
-
-public class LanguageAndRegionSettings extends DashboardFragment {
-
-    private static final String TAG = "LangAndRegionSettings";
-
-    @Override
-    public int getMetricsCategory() {
-        return MetricsProto.MetricsEvent.SETTINGS_LANGUAGE_CATEGORY;
-    }
-
-    @Override
-    protected String getLogTag() {
-        return TAG;
-    }
-
-    @Override
-    protected int getPreferenceScreenResId() {
-        return R.xml.language_and_region;
-    }
-
-    @Override
-    protected List<PreferenceController> getPreferenceControllers(Context context) {
-        final List<PreferenceController> controllers = new ArrayList<>();
-        controllers.add(new PhoneLanguagePreferenceController(context));
-        controllers.add(new SpellCheckerPreferenceController(context));
-        controllers.add(new UserDictionaryPreferenceController(context));
-        controllers.add(new TtsPreferenceController(context, new TtsEngines(context)));
-        return controllers;
-    }
-
-}
diff --git a/src/com/android/settings/search/SearchIndexableResources.java b/src/com/android/settings/search/SearchIndexableResources.java
index cbbc0b5..68a50f0 100644
--- a/src/com/android/settings/search/SearchIndexableResources.java
+++ b/src/com/android/settings/search/SearchIndexableResources.java
@@ -56,10 +56,10 @@
 import com.android.settings.gestures.PickupGestureSettings;
 import com.android.settings.gestures.SwipeToNotificationSettings;
 import com.android.settings.inputmethod.AvailableVirtualKeyboardFragment;
-import com.android.settings.inputmethod.InputAndGestureSettings;
 import com.android.settings.inputmethod.InputMethodAndLanguageSettings;
 import com.android.settings.inputmethod.PhysicalKeyboardFragment;
 import com.android.settings.inputmethod.VirtualKeyboardFragment;
+import com.android.settings.language.LanguageAndInputSettings;
 import com.android.settings.location.LocationSettings;
 import com.android.settings.location.ScanningSettings;
 import com.android.settings.network.NetworkDashboardFragment;
@@ -140,7 +140,7 @@
         addIndex(DoubleTwistGestureSettings.class, NO_DATA_RES_ID, R.drawable.ic_settings_gestures);
         addIndex(SwipeToNotificationSettings.class, NO_DATA_RES_ID,
                 R.drawable.ic_settings_gestures);
-        addIndex(InputAndGestureSettings.class, NO_DATA_RES_ID, R.drawable.ic_settings_language);
+        addIndex(LanguageAndInputSettings.class, NO_DATA_RES_ID, R.drawable.ic_settings_language);
         addIndex(LocationSettings.class, R.xml.location_settings, R.drawable.ic_settings_location);
         addIndex(ScanningSettings.class, R.xml.location_scanning, R.drawable.ic_settings_location);
         addIndex(SecuritySettings.class, NO_DATA_RES_ID, R.drawable.ic_settings_security);