src/com/android/settings/development/WifiConnectedMacRandomizationPreferenceController.java


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/*
 * 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.development;

import android.content.Context;
import android.provider.Settings;
import android.support.annotation.VisibleForTesting;
import android.support.v14.preference.SwitchPreference;
import android.support.v7.preference.Preference;

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

public class WifiConnectedMacRandomizationPreferenceController extends
        DeveloperOptionsPreferenceController implements Preference.OnPreferenceChangeListener,
        PreferenceControllerMixin {

    private static final String WIFI_CONNECTED_MAC_RANDOMIZATION_KEY =
            "wifi_connected_mac_randomization";

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

    public WifiConnectedMacRandomizationPreferenceController(Context context) {
        super(context);
    }

    @Override
    public boolean isAvailable() {
        return mContext.getResources().getBoolean(
                R.bool.config_wifi_support_connected_mac_randomization);
    }

    @Override
    public String getPreferenceKey() {
        return WIFI_CONNECTED_MAC_RANDOMIZATION_KEY;
    }

    @Override
    public boolean onPreferenceChange(Preference preference, Object newValue) {
        final boolean isEnabled = (Boolean) newValue;
        Settings.Global.putInt(mContext.getContentResolver(),
                Settings.Global.WIFI_CONNECTED_MAC_RANDOMIZATION_ENABLED,
                isEnabled ? SETTING_VALUE_ON : SETTING_VALUE_OFF);
        return true;
    }

    @Override
    public void updateState(Preference preference) {
        final int enableMode = Settings.Global.getInt(mContext.getContentResolver(),
                Settings.Global.WIFI_CONNECTED_MAC_RANDOMIZATION_ENABLED, SETTING_VALUE_OFF);
        ((SwitchPreference) mPreference).setChecked(enableMode != SETTING_VALUE_OFF);
    }

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