1 /*
2  * Copyright (C) 2017 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.systemui.statusbar.phone;
18 
19 import android.metrics.LogMaker;
20 import android.util.ArrayMap;
21 
22 import com.android.internal.logging.MetricsLogger;
23 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
24 import com.android.systemui.Dependency;
25 import com.android.systemui.EventLogConstants;
26 import com.android.systemui.EventLogTags;
27 
28 import javax.inject.Inject;
29 import javax.inject.Singleton;
30 
31 /**
32  * Wrapper that emits both new- and old-style gesture logs.
33  * TODO: delete this once the old logs are no longer needed.
34  */
35 @Singleton
36 public class LockscreenGestureLogger {
37     private ArrayMap<Integer, Integer> mLegacyMap;
38     private LogMaker mLogMaker = new LogMaker(MetricsEvent.VIEW_UNKNOWN)
39             .setType(MetricsEvent.TYPE_ACTION);
40     private final MetricsLogger mMetricsLogger = Dependency.get(MetricsLogger.class);
41 
42     @Inject
LockscreenGestureLogger()43     public LockscreenGestureLogger() {
44         mLegacyMap = new ArrayMap<>(EventLogConstants.METRICS_GESTURE_TYPE_MAP.length);
45         for (int i = 0; i < EventLogConstants.METRICS_GESTURE_TYPE_MAP.length ; i++) {
46             mLegacyMap.put(EventLogConstants.METRICS_GESTURE_TYPE_MAP[i], i);
47         }
48     }
49 
write(int gesture, int length, int velocity)50     public void write(int gesture, int length, int velocity) {
51         mMetricsLogger.write(mLogMaker.setCategory(gesture)
52                 .setType(MetricsEvent.TYPE_ACTION)
53                 .addTaggedData(MetricsEvent.FIELD_GESTURE_LENGTH, length)
54                 .addTaggedData(MetricsEvent.FIELD_GESTURE_VELOCITY, velocity));
55         // also write old-style logs for backward-0compatibility
56         EventLogTags.writeSysuiLockscreenGesture(safeLookup(gesture), length, velocity);
57     }
58 
59     /**
60      * Record the location of a swipe gesture, expressed as percentages of the whole screen
61      * @param category the action
62      * @param xPercent x-location / width * 100
63      * @param yPercent y-location / height * 100
64      */
writeAtFractionalPosition( int category, int xPercent, int yPercent, int rotation)65     public void writeAtFractionalPosition(
66             int category, int xPercent, int yPercent, int rotation) {
67         mMetricsLogger.write(mLogMaker.setCategory(category)
68                 .setType(MetricsEvent.TYPE_ACTION)
69                 .addTaggedData(MetricsEvent.FIELD_GESTURE_X_PERCENT, xPercent)
70                 .addTaggedData(MetricsEvent.FIELD_GESTURE_Y_PERCENT, yPercent)
71                 .addTaggedData(MetricsEvent.FIELD_DEVICE_ROTATION, rotation));
72     }
73 
safeLookup(int gesture)74     private int safeLookup(int gesture) {
75         Integer value = mLegacyMap.get(gesture);
76         if (value == null) {
77             return MetricsEvent.VIEW_UNKNOWN;
78         }
79         return value;
80     }
81 }
82