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      1 /*
      2 * Copyright (C) 2014 The Android Open Source Project
      3 *
      4 * Licensed under the Apache License, Version 2.0 (the "License");
      5 * you may not use this file except in compliance with the License.
      6 * You may obtain a copy of the License at
      7 *
      8 *      http://www.apache.org/licenses/LICENSE-2.0
      9 *
     10 * Unless required by applicable law or agreed to in writing, software
     11 * distributed under the License is distributed on an "AS IS" BASIS,
     12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13 * See the License for the specific language governing permissions and
     14 * limitations under the License.
     15 */
     16 
     17 package com.android.server.notification;
     18 
     19 import android.app.Notification;
     20 import android.content.Context;
     21 import android.service.notification.NotificationListenerService;
     22 import android.util.Log;
     23 import android.util.Slog;
     24 
     25 /**
     26  * This {@link com.android.server.notification.NotificationSignalExtractor} notices noisy
     27  * notifications and marks them to get a temporary ranking bump.
     28  */
     29 public class NotificationIntrusivenessExtractor implements NotificationSignalExtractor {
     30     private static final String TAG = "IntrusivenessExtractor";
     31     private static final boolean DBG = Log.isLoggable(TAG, Log.DEBUG);
     32 
     33     /** Length of time (in milliseconds) that an intrusive or noisy notification will stay at
     34     the top of the ranking order, before it falls back to its natural position. */
     35     private static final long HANG_TIME_MS = 10000;
     36 
     37     public void initialize(Context ctx, NotificationUsageStats usageStats) {
     38         if (DBG) Slog.d(TAG, "Initializing  " + getClass().getSimpleName() + ".");
     39     }
     40 
     41     public RankingReconsideration process(NotificationRecord record) {
     42         if (record == null || record.getNotification() == null) {
     43             if (DBG) Slog.d(TAG, "skipping empty notification");
     44             return null;
     45         }
     46 
     47         if (record.getImportance() >= NotificationListenerService.Ranking.IMPORTANCE_DEFAULT) {
     48             final Notification notification = record.getNotification();
     49             if ((notification.defaults & Notification.DEFAULT_VIBRATE) != 0 ||
     50                     notification.vibrate != null ||
     51                     (notification.defaults & Notification.DEFAULT_SOUND) != 0 ||
     52                     notification.sound != null ||
     53                     notification.fullScreenIntent != null) {
     54                 record.setRecentlyIntrusive(true);
     55             }
     56         }
     57 
     58         return new RankingReconsideration(record.getKey(), HANG_TIME_MS) {
     59             @Override
     60             public void work() {
     61                 // pass
     62             }
     63 
     64             @Override
     65             public void applyChangesLocked(NotificationRecord record) {
     66                 record.setRecentlyIntrusive(false);
     67             }
     68         };
     69     }
     70 
     71     @Override
     72     public void setConfig(RankingConfig config) {
     73         // ignore: config has no relevant information yet.
     74     }
     75 }
     76