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 17package com.android.server.notification; 18 19import android.app.NotificationManager; 20import android.content.Context; 21import android.net.Uri; 22import android.util.Log; 23import android.util.Slog; 24 25import com.android.internal.annotations.VisibleForTesting; 26 27/** 28 * This {@link com.android.server.notification.NotificationSignalExtractor} notices noisy 29 * notifications and marks them to get a temporary ranking bump. 30 */ 31public class NotificationIntrusivenessExtractor implements NotificationSignalExtractor { 32 private static final String TAG = "IntrusivenessExtractor"; 33 private static final boolean DBG = Log.isLoggable(TAG, Log.DEBUG); 34 35 /** Length of time (in milliseconds) that an intrusive or noisy notification will stay at 36 the top of the ranking order, before it falls back to its natural position. */ 37 @VisibleForTesting 38 static final long HANG_TIME_MS = 10000; 39 40 public void initialize(Context ctx, NotificationUsageStats usageStats) { 41 if (DBG) Slog.d(TAG, "Initializing " + getClass().getSimpleName() + "."); 42 } 43 44 public RankingReconsideration process(NotificationRecord record) { 45 if (record == null || record.getNotification() == null) { 46 if (DBG) Slog.d(TAG, "skipping empty notification"); 47 return null; 48 } 49 50 if (record.getFreshnessMs(System.currentTimeMillis()) < HANG_TIME_MS 51 && record.getImportance() >= NotificationManager.IMPORTANCE_DEFAULT) { 52 if (record.getSound() != null && record.getSound() != Uri.EMPTY) { 53 record.setRecentlyIntrusive(true); 54 } 55 if (record.getVibration() != null) { 56 record.setRecentlyIntrusive(true); 57 } 58 if (record.getNotification().fullScreenIntent != null) { 59 record.setRecentlyIntrusive(true); 60 } 61 } 62 63 if (!record.isRecentlyIntrusive()) { 64 return null; 65 } 66 67 return new RankingReconsideration(record.getKey(), HANG_TIME_MS) { 68 @Override 69 public void work() { 70 // pass 71 } 72 73 @Override 74 public void applyChangesLocked(NotificationRecord record) { 75 // there will be another reconsideration in the message queue HANG_TIME_MS 76 // from each time this record alerts, which can finally clear this flag. 77 if ((System.currentTimeMillis() - record.getLastIntrusive()) >= HANG_TIME_MS) { 78 record.setRecentlyIntrusive(false); 79 } 80 } 81 }; 82 } 83 84 @Override 85 public void setConfig(RankingConfig config) { 86 // ignore: config has no relevant information yet. 87 } 88 89 @Override 90 public void setZenHelper(ZenModeHelper helper) { 91 92 } 93} 94