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.Notification;
20import android.content.Context;
21import android.service.notification.NotificationListenerService;
22import android.util.Log;
23import 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 */
29public 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