Adds Edge to Edge option in gesture settings page

Bug: 125489141
Test: Manual test on device
Test: make RunSettingsRoboTests ROBOTEST_FILTER=SystemNavigationLegacyPreferenceControllerTest
Test: make RunSettingsRoboTests ROBOTEST_FILTER=SystemNavigationSwipeUpPreferenceControllerTest
Test: make RunSettingsRoboTests ROBOTEST_FILTER=SystemNavigationEdgeToEdgePreferenceControllerTest
Change-Id: I1b274cc053de8235d0c664150cabe5dadc618419

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

@@ -0,0 +1,48 @@
+/*
+ * 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.gestures;
+
+import android.content.Context;
+import android.text.TextUtils;
+
+import com.android.settings.widget.RadioButtonPreference;
+
+public class SystemNavigationLegacyPreferenceController extends
+        SystemNavigationPreferenceController {
+    static final String PREF_KEY_LEGACY = "gesture_legacy";
+
+    public SystemNavigationLegacyPreferenceController(Context context, String key) {
+        super(context, key);
+    }
+
+    @Override
+    public boolean isSliceable() {
+        return TextUtils.equals(PREF_KEY_LEGACY, getPreferenceKey());
+    }
+
+    @Override
+    public void onRadioButtonClicked(RadioButtonPreference preference) {
+        setEdgeToEdgeGestureEnabled(mContext, false);
+        setSwipeUpEnabled(mContext, false);
+        selectRadioButtonInGroup(PREF_KEY_LEGACY, mPreferenceScreen);
+    }
+
+    @Override
+    public boolean isChecked() {
+        return !isEdgeToEdgeEnabled(mContext) && !isSwipeUpEnabled(mContext);
+    }
+}