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