Move Gesture settings up one level.

Move System->Languages, input & gestures->Gestures to System->Gestures.

Change-Id: Ie81876208383f69ebf1a0465d76c760d7dd9d95d
Fix: 62276882
Test: make RunSettingsRoboTests
(cherry picked from commit 55ce7de7d0)

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

@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2017 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.ContentResolver;
+import android.content.Context;
+import android.provider.Settings;
+import android.support.v7.preference.Preference;
+
+import com.android.internal.hardware.AmbientDisplayConfiguration;
+import com.android.settings.R;
+import com.android.settings.core.PreferenceControllerMixin;
+import com.android.settings.overlay.FeatureFactory;
+import com.android.settingslib.core.AbstractPreferenceController;
+
+import java.util.List;
+
+public class GesturesSettingPreferenceController extends AbstractPreferenceController
+        implements PreferenceControllerMixin {
+
+    private static final String KEY_GESTURES_SETTINGS = "gesture_settings";
+
+    private final AssistGestureFeatureProvider mFeatureProvider;
+    private List<AbstractPreferenceController> mGestureControllers;
+
+    public GesturesSettingPreferenceController(Context context) {
+        super(context);
+        mFeatureProvider = FeatureFactory.getFactory(context).getAssistGestureFeatureProvider();
+    }
+
+    @Override
+    public boolean isAvailable() {
+        if (mGestureControllers == null) {
+            mGestureControllers = GestureSettings.buildPreferenceControllers(mContext,
+                    null /* lifecycle */, new AmbientDisplayConfiguration(mContext));
+        }
+        boolean isAvailable = false;
+        for (AbstractPreferenceController controller : mGestureControllers) {
+            isAvailable = isAvailable || controller.isAvailable();
+        }
+        return isAvailable;
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return KEY_GESTURES_SETTINGS;
+    }
+
+    @Override
+    public void updateState(Preference preference) {
+        if (!mFeatureProvider.isSensorAvailable(mContext)) {
+            preference.setSummary("");
+        }
+        final ContentResolver contentResolver = mContext.getContentResolver();
+        final boolean assistGestureEnabled = Settings.Secure.getInt(
+                contentResolver, Settings.Secure.ASSIST_GESTURE_ENABLED, 1) != 0;
+        final boolean assistGestureSilenceEnabled = Settings.Secure.getInt(
+                contentResolver, Settings.Secure.ASSIST_GESTURE_SILENCE_ALERTS_ENABLED, 1) != 0;
+        final String summary;
+        if (mFeatureProvider.isSupported(mContext) && assistGestureEnabled) {
+            summary = mContext.getString(
+                    R.string.language_input_gesture_summary_on_with_assist);
+        } else if (assistGestureSilenceEnabled) {
+            summary = mContext.getString(
+                    R.string.language_input_gesture_summary_on_non_assist);
+        } else {
+            summary = mContext.getString(R.string.language_input_gesture_summary_off);
+        }
+        preference.setSummary(summary);
+    }
+
+}