packages_apps_Settings/src/com/android/settings/development/TouchpadVisualizerPreferenceController.java

/*
 * Copyright 2024 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.development;

import android.content.Context;
import android.provider.Settings;

import androidx.annotation.VisibleForTesting;
import androidx.preference.Preference;
import androidx.preference.SwitchPreference;

import com.android.settings.core.PreferenceControllerMixin;
import com.android.settingslib.development.DeveloperOptionsPreferenceController;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;

import android.hardware.input.InputSettings;

/** PreferenceController that controls the "Touchpad visualizer" developer option. */
public class TouchpadVisualizerPreferenceController extends
        DeveloperOptionsPreferenceController implements
        Preference.OnPreferenceChangeListener, PreferenceControllerMixin {

    private static final String TOUCHPAD_VISUALIZER_KEY = "touchpad_visualizer";

    @VisibleForTesting
    static final int SETTING_VALUE_ON = 1;
    @VisibleForTesting
    static final int SETTING_VALUE_OFF = 0;

    public TouchpadVisualizerPreferenceController(@NonNull Context context) {
        super(context);
    }

    @Override
    public @NonNull String getPreferenceKey() {
        return TOUCHPAD_VISUALIZER_KEY;
    }

    @Override
    public boolean isAvailable(){
        return InputSettings.isTouchpadVisualizerFeatureFlagEnabled();
    }

    @Override
    public boolean onPreferenceChange(@NonNull Preference preference, @Nullable Object newValue) {
        final boolean isEnabled = newValue != null ? (Boolean) newValue : false;
        Settings.System.putInt(mContext.getContentResolver(),
                Settings.System.TOUCHPAD_VISUALIZER,
                isEnabled ? SETTING_VALUE_ON : SETTING_VALUE_OFF);
        return true;
    }

    @Override
    public void updateState(@NonNull Preference preference) {
        int touchpadVisualizer = Settings.System.getInt(mContext.getContentResolver(),
                Settings.System.TOUCHPAD_VISUALIZER, SETTING_VALUE_OFF);
        ((SwitchPreference) mPreference).setChecked(touchpadVisualizer != SETTING_VALUE_OFF);
    }

    @Override
    protected void onDeveloperOptionsSwitchDisabled() {
        super.onDeveloperOptionsSwitchDisabled();
        Settings.System.putInt(mContext.getContentResolver(), Settings.System.TOUCHPAD_VISUALIZER,
                SETTING_VALUE_OFF);
        ((SwitchPreference) mPreference).setChecked(false);
    }
}