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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.tv.settings.device.apps.specialaccess;
import android.app.NotificationManager;
import android.app.tvsettings.TvSettingsEnums;
import android.content.ComponentName;
import android.content.Context;
import android.content.pm.PackageItemInfo;
import android.content.pm.PackageManager;
import android.content.pm.ServiceInfo;
import android.os.Bundle;
import android.os.UserHandle;
import android.provider.Settings;
import android.service.notification.NotificationListenerService;
import android.util.ArraySet;
import android.util.IconDrawableFactory;
import android.util.Log;
import androidx.annotation.Keep;
import androidx.preference.Preference;
import androidx.preference.PreferenceScreen;
import com.android.settingslib.applications.ServiceListing;
import com.android.tv.settings.R;
import com.android.tv.settings.SettingsPreferenceFragment;
import com.android.tv.settings.widget.SwitchWithSoundPreference;
import java.util.List;
/**
* Settings screen for managing notification listener permissions
*/
@Keep
public class NotificationAccess extends SettingsPreferenceFragment {
private static final String TAG = "NotificationAccess";
private static final int MAX_CN_LENGTH = 500;
private static final String HEADER_KEY = "header";
private static final String DEFAULT_PACKAGES_SEPARATOR = ":";
private ArraySet<String> mDefaultPackages;
private NotificationManager mNotificationManager;
private PackageManager mPackageManager;
private ServiceListing mServiceListing;
private IconDrawableFactory mIconDrawableFactory;
@Override
public void onAttach(Context context) {
super.onAttach(context);
mPackageManager = context.getPackageManager();
mNotificationManager = context.getSystemService(NotificationManager.class);
mIconDrawableFactory = IconDrawableFactory.newInstance(context);
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mServiceListing = new ServiceListing.Builder(getContext())
.setTag(TAG)
.setSetting(Settings.Secure.ENABLED_NOTIFICATION_LISTENERS)
.setIntentAction(NotificationListenerService.SERVICE_INTERFACE)
.setPermission(android.Manifest.permission.BIND_NOTIFICATION_LISTENER_SERVICE)
.setNoun("notification listener")
.setValidator(info -> {
if (info.getComponentName().flattenToString().length() > MAX_CN_LENGTH) {
return false;
}
return true;
})
.build();
mServiceListing.addCallback(this::updateList);
}
@Override
public void onResume() {
super.onResume();
mServiceListing.reload();
mServiceListing.setListening(true);
}
@Override
public void onPause() {
super.onPause();
mServiceListing.setListening(false);
}
@Override
public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
setPreferencesFromResource(R.xml.notification_access, null);
String packages = getString(
getResources().getIdentifier("config_defaultListenerAccessPackages",
"string", "android"));
mDefaultPackages = new ArraySet<String>(packages.split(DEFAULT_PACKAGES_SEPARATOR));
}
private void updateList(List<ServiceInfo> services) {
final PreferenceScreen screen = getPreferenceScreen();
final Preference header = screen.findPreference(HEADER_KEY);
screen.removeAll();
if (header != null) {
screen.addPreference(header);
}
services.sort(new PackageItemInfo.DisplayNameComparator(mPackageManager));
for (ServiceInfo service : services) {
final ComponentName cn = new ComponentName(service.packageName, service.name);
CharSequence title = null;
try {
title = mPackageManager.getApplicationInfo(
service.packageName, 0).loadLabel(mPackageManager);
} catch (PackageManager.NameNotFoundException e) {
// unlikely, as we are iterating over live services.
Log.w(TAG, "can't find package name", e);
}
final String summary = service.loadLabel(mPackageManager).toString();
final SwitchWithSoundPreference pref = new SwitchWithSoundPreference(
getPreferenceManager().getContext());
pref.setPersistent(false);
pref.setIcon(mIconDrawableFactory.getBadgedIcon(service, service.applicationInfo,
UserHandle.getUserId(service.applicationInfo.uid)));
if (title != null && !title.equals(summary)) {
pref.setTitle(title);
pref.setSummary(summary);
} else {
pref.setTitle(summary);
}
pref.setKey(cn.flattenToString());
pref.setChecked(mNotificationManager.isNotificationListenerAccessGranted(cn));
// Prevent the user from removing access from a default notification listener.
if (mDefaultPackages.contains(cn.getPackageName()) && pref.isChecked()) {
pref.setEnabled(false);
pref.setSummary(R.string.default_notification_access_package_summary);
}
pref.setOnPreferenceChangeListener((preference, newValue) -> {
final boolean enable = (boolean) newValue;
mNotificationManager.setNotificationListenerAccessGranted(cn, enable);
return true;
});
screen.addPreference(pref);
}
if (services.isEmpty()) {
final Preference preference = new Preference(getPreferenceManager().getContext());
preference.setTitle(R.string.no_notification_listeners);
}
}
@Override
protected int getPageId() {
return TvSettingsEnums.APPS_SPECIAL_APP_ACCESS_NOTIFICATION_ACCESS;
}
}
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