Leif Wilden | 5eb7748 | 2018-01-23 23:54:05 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 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.settingslib.core.instrumentation; |
| 18 | |
| 19 | import android.app.Activity; |
| 20 | import android.content.Context; |
| 21 | import android.content.Intent; |
| 22 | |
| 23 | import android.os.SystemClock; |
| 24 | import com.android.internal.logging.nano.MetricsProto; |
| 25 | import com.android.settingslib.core.lifecycle.LifecycleObserver; |
| 26 | import com.android.settingslib.core.lifecycle.events.OnPause; |
| 27 | import com.android.settingslib.core.lifecycle.events.OnResume; |
| 28 | |
| 29 | import static com.android.settingslib.core.instrumentation.Instrumentable.METRICS_CATEGORY_UNKNOWN; |
| 30 | |
| 31 | /** |
| 32 | * Logs visibility change of a fragment. |
| 33 | */ |
| 34 | public class VisibilityLoggerMixin implements LifecycleObserver, OnResume, OnPause { |
| 35 | |
| 36 | private static final String TAG = "VisibilityLoggerMixin"; |
| 37 | |
| 38 | private final int mMetricsCategory; |
| 39 | |
| 40 | private MetricsFeatureProvider mMetricsFeature; |
| 41 | private int mSourceMetricsCategory = MetricsProto.MetricsEvent.VIEW_UNKNOWN; |
| 42 | private long mVisibleTimestamp; |
| 43 | |
| 44 | /** |
| 45 | * The metrics category constant for logging source when a setting fragment is opened. |
| 46 | */ |
| 47 | public static final String EXTRA_SOURCE_METRICS_CATEGORY = ":settings:source_metrics"; |
| 48 | |
| 49 | private VisibilityLoggerMixin() { |
| 50 | mMetricsCategory = METRICS_CATEGORY_UNKNOWN; |
| 51 | } |
| 52 | |
| 53 | public VisibilityLoggerMixin(int metricsCategory, MetricsFeatureProvider metricsFeature) { |
| 54 | mMetricsCategory = metricsCategory; |
| 55 | mMetricsFeature = metricsFeature; |
| 56 | } |
| 57 | |
| 58 | @Override |
| 59 | public void onResume() { |
| 60 | mVisibleTimestamp = SystemClock.elapsedRealtime(); |
| 61 | if (mMetricsFeature != null && mMetricsCategory != METRICS_CATEGORY_UNKNOWN) { |
| 62 | mMetricsFeature.visible(null /* context */, mSourceMetricsCategory, mMetricsCategory); |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | @Override |
| 67 | public void onPause() { |
| 68 | mVisibleTimestamp = 0; |
| 69 | if (mMetricsFeature != null && mMetricsCategory != METRICS_CATEGORY_UNKNOWN) { |
| 70 | mMetricsFeature.hidden(null /* context */, mMetricsCategory); |
| 71 | } |
| 72 | } |
| 73 | |
| 74 | /** |
| 75 | * Sets source metrics category for this logger. Source is the caller that opened this UI. |
| 76 | */ |
| 77 | public void setSourceMetricsCategory(Activity activity) { |
| 78 | if (mSourceMetricsCategory != MetricsProto.MetricsEvent.VIEW_UNKNOWN || activity == null) { |
| 79 | return; |
| 80 | } |
| 81 | final Intent intent = activity.getIntent(); |
| 82 | if (intent == null) { |
| 83 | return; |
| 84 | } |
| 85 | mSourceMetricsCategory = intent.getIntExtra(EXTRA_SOURCE_METRICS_CATEGORY, |
| 86 | MetricsProto.MetricsEvent.VIEW_UNKNOWN); |
| 87 | } |
| 88 | |
| 89 | /** Returns elapsed time since onResume() */ |
| 90 | public long elapsedTimeSinceVisible() { |
| 91 | if (mVisibleTimestamp == 0) { |
| 92 | return 0; |
| 93 | } |
| 94 | return SystemClock.elapsedRealtime() - mVisibleTimestamp; |
| 95 | } |
| 96 | } |