| /* |
| * 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.systemui; |
| |
| import android.app.Notification; |
| import android.app.NotificationManager; |
| import android.content.Context; |
| import android.os.Bundle; |
| import android.service.notification.StatusBarNotification; |
| import android.util.ArrayMap; |
| import android.util.ArraySet; |
| import android.util.Log; |
| import android.util.SparseArray; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.messages.nano.SystemMessageProto; |
| |
| import java.util.Arrays; |
| |
| /** |
| * Foreground service controller, a/k/a Dianne's Dungeon. |
| */ |
| public class ForegroundServiceControllerImpl |
| implements ForegroundServiceController { |
| |
| // shelf life of foreground services before they go bad |
| public static final long FG_SERVICE_GRACE_MILLIS = 5000; |
| |
| private static final String TAG = "FgServiceController"; |
| private static final boolean DBG = false; |
| |
| private final SparseArray<UserServices> mUserServices = new SparseArray<>(); |
| private final Object mMutex = new Object(); |
| |
| public ForegroundServiceControllerImpl(Context context) { |
| } |
| |
| @Override |
| public boolean isDungeonNeededForUser(int userId) { |
| synchronized (mMutex) { |
| final UserServices services = mUserServices.get(userId); |
| if (services == null) return false; |
| return services.isDungeonNeeded(); |
| } |
| } |
| |
| @Override |
| public void addNotification(StatusBarNotification sbn, int importance) { |
| updateNotification(sbn, importance); |
| } |
| |
| @Override |
| public boolean removeNotification(StatusBarNotification sbn) { |
| synchronized (mMutex) { |
| final UserServices userServices = mUserServices.get(sbn.getUserId()); |
| if (userServices == null) { |
| if (DBG) { |
| Log.w(TAG, String.format( |
| "user %d with no known notifications got removeNotification for %s", |
| sbn.getUserId(), sbn)); |
| } |
| return false; |
| } |
| if (isDungeonNotification(sbn)) { |
| // if you remove the dungeon entirely, we take that to mean there are |
| // no running services |
| userServices.setRunningServices(null, 0); |
| return true; |
| } else { |
| // this is safe to call on any notification, not just FLAG_FOREGROUND_SERVICE |
| return userServices.removeNotification(sbn.getPackageName(), sbn.getKey()); |
| } |
| } |
| } |
| |
| @Override |
| public void updateNotification(StatusBarNotification sbn, int newImportance) { |
| synchronized (mMutex) { |
| UserServices userServices = mUserServices.get(sbn.getUserId()); |
| if (userServices == null) { |
| userServices = new UserServices(); |
| mUserServices.put(sbn.getUserId(), userServices); |
| } |
| |
| if (isDungeonNotification(sbn)) { |
| final Bundle extras = sbn.getNotification().extras; |
| if (extras != null) { |
| final String[] svcs = extras.getStringArray(Notification.EXTRA_FOREGROUND_APPS); |
| userServices.setRunningServices(svcs, sbn.getNotification().when); |
| } |
| } else { |
| userServices.removeNotification(sbn.getPackageName(), sbn.getKey()); |
| if (0 != (sbn.getNotification().flags & Notification.FLAG_FOREGROUND_SERVICE) |
| && newImportance > NotificationManager.IMPORTANCE_MIN) { |
| userServices.addNotification(sbn.getPackageName(), sbn.getKey()); |
| } |
| } |
| } |
| } |
| |
| @Override |
| public boolean isDungeonNotification(StatusBarNotification sbn) { |
| return sbn.getId() == SystemMessageProto.SystemMessage.NOTE_FOREGROUND_SERVICES |
| && sbn.getTag() == null |
| && sbn.getPackageName().equals("android"); |
| } |
| |
| /** |
| * Struct to track relevant packages and notifications for a userid's foreground services. |
| */ |
| private static class UserServices { |
| private String[] mRunning = null; |
| private long mServiceStartTime = 0; |
| private ArrayMap<String, ArraySet<String>> mNotifications = new ArrayMap<>(1); |
| public void setRunningServices(String[] pkgs, long serviceStartTime) { |
| mRunning = pkgs != null ? Arrays.copyOf(pkgs, pkgs.length) : null; |
| mServiceStartTime = serviceStartTime; |
| } |
| public void addNotification(String pkg, String key) { |
| if (mNotifications.get(pkg) == null) { |
| mNotifications.put(pkg, new ArraySet<String>()); |
| } |
| mNotifications.get(pkg).add(key); |
| } |
| public boolean removeNotification(String pkg, String key) { |
| final boolean found; |
| final ArraySet<String> keys = mNotifications.get(pkg); |
| if (keys == null) { |
| found = false; |
| } else { |
| found = keys.remove(key); |
| if (keys.size() == 0) { |
| mNotifications.remove(pkg); |
| } |
| } |
| return found; |
| } |
| public boolean isDungeonNeeded() { |
| if (mRunning != null |
| && System.currentTimeMillis() - mServiceStartTime >= FG_SERVICE_GRACE_MILLIS) { |
| |
| for (String pkg : mRunning) { |
| final ArraySet<String> set = mNotifications.get(pkg); |
| if (set == null || set.size() == 0) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| } |
| } |