src/com/android/car/settings/security/AddTrustedDevicePreferenceController.java

/*
 * 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.car.settings.security;

import android.app.admin.DevicePolicyManager;
import android.car.drivingstate.CarUxRestrictions;
import android.car.userlib.CarUserManagerHelper;
import android.content.Context;

import androidx.preference.Preference;

import com.android.car.settings.common.FragmentController;
import com.android.car.settings.common.PreferenceController;
import com.android.internal.widget.LockPatternUtils;

/**
 * Business logic if the preference is clickable according to the password quality of current user.
 */
public class AddTrustedDevicePreferenceController extends PreferenceController<Preference> {
    private CarUserManagerHelper mCarUserManagerHelper;
    private LockPatternUtils mLockPatternUtils;

    public AddTrustedDevicePreferenceController(Context context, String preferenceKey,
            FragmentController fragmentController, CarUxRestrictions uxRestrictions) {
        super(context, preferenceKey, fragmentController, uxRestrictions);
        mCarUserManagerHelper = new CarUserManagerHelper(context);
        mLockPatternUtils = new LockPatternUtils(context);
    }

    @Override
    protected void updateState(Preference preference) {
        preference.setEnabled(hasPassword());
    }

    private boolean hasPassword() {
        return mLockPatternUtils.getKeyguardStoredPasswordQuality(
                mCarUserManagerHelper.getCurrentProcessUserId())
                != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
    }

    @Override
    protected Class<Preference> getPreferenceType() {
        return Preference.class;
    }
}