Implement trackpad settings UI

1. basic trackpad settings
2. trackpad gestures settgins
3. use feature flag to control gesture settings page.

Bug: 247080509
Test: local test

Change-Id: Ia7184eeb7670e5d807cb553929679972e54d8c92

src/com/android/settings/inputmethod/TrackpadTouchGestureSettings.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2022 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.inputmethod;
+
+import android.app.settings.SettingsEnums;
+import android.content.Context;
+import android.util.FeatureFlagUtils;
+
+import com.android.settings.R;
+import com.android.settings.dashboard.DashboardFragment;
+import com.android.settings.search.BaseSearchIndexProvider;
+
+public class TrackpadTouchGestureSettings extends DashboardFragment {
+
+    private static final String TAG = "TrackpadTouchGestureSettings";
+
+    @Override
+    public void onAttach(Context context) {
+        super.onAttach(context);
+    }
+
+    @Override
+    public int getMetricsCategory() {
+        return SettingsEnums.SETTINGS_KEYBOARDS_TOUCHPAD_GESTURE;
+    }
+
+    @Override
+    protected String getLogTag() {
+        return TAG;
+    }
+
+    @Override
+    protected int getPreferenceScreenResId() {
+        return R.xml.trackpad_gesture_settings;
+    }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.trackpad_settings) {
+                @Override
+                protected boolean isPageSearchEnabled(Context context) {
+                    return FeatureFlagUtils
+                            .isEnabled(
+                                    context,
+                                    FeatureFlagUtils.SETTINGS_NEW_KEYBOARD_TRACKPAD_GESTURE);
+                }
+            };
+}