app_Settings/src/com/android/settings/applications/specialaccess/notificationaccess/PreUpgradePreferenceController.java

/*
 * Copyright (C) 2021 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.applications.specialaccess.notificationaccess;

import android.content.ComponentName;
import android.content.Context;
import android.os.Build;
import android.service.notification.NotificationListenerFilter;

import com.android.settings.core.BasePreferenceController;
import com.android.settings.notification.NotificationBackend;

public class PreUpgradePreferenceController extends BasePreferenceController {

    private ComponentName mCn;
    private int mUserId;
    private NotificationBackend mNm;
    private NotificationListenerFilter mNlf;
    private int mTargetSdk;

    public PreUpgradePreferenceController(Context context, String key) {
        super(context, key);
    }

    public PreUpgradePreferenceController setCn(ComponentName cn) {
        mCn = cn;
        return this;
    }

    public PreUpgradePreferenceController setUserId(int userId) {
        mUserId = userId;
        return this;
    }

    public PreUpgradePreferenceController setNm(NotificationBackend nm) {
        mNm = nm;
        return this;
    }

    public PreUpgradePreferenceController setTargetSdk(int targetSdk) {
        mTargetSdk = targetSdk;
        return this;
    }

    @Override
    public int getAvailabilityStatus() {
        if (mNm.isNotificationListenerAccessGranted(mCn)) {
            mNlf = mNm.getListenerFilter(mCn, mUserId);

            if (mTargetSdk > Build.VERSION_CODES.S) {
                return CONDITIONALLY_UNAVAILABLE;
            }

            if (!mNlf.areAllTypesAllowed() || !mNlf.getDisallowedPackages().isEmpty()) {
                return CONDITIONALLY_UNAVAILABLE;
            }
            return AVAILABLE;
        } else {
            return CONDITIONALLY_UNAVAILABLE;
        }
    }
}