1 /*
<lambda>null2  * Copyright (C) 2024 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.notification.stack
18 
19 import com.android.internal.util.LatencyTracker
20 import com.android.internal.util.LatencyTracker.ACTION_NOTIFICATIONS_HIDDEN_FOR_MEASURE
21 import com.android.internal.util.LatencyTracker.ACTION_NOTIFICATIONS_HIDDEN_FOR_MEASURE_WITH_SHADE_OPEN
22 import com.android.systemui.shade.domain.interactor.ShadeInteractor
23 import kotlinx.coroutines.flow.Flow
24 import kotlinx.coroutines.flow.combine
25 import kotlinx.coroutines.flow.distinctUntilChanged
26 import javax.inject.Inject
27 
28 /**
29  * Tracks latencies related to temporary hiding notifications while measuring
30  * them, which is an optimization to show some content as early as possible
31  * and perform notifications measurement later.
32  * See [HideNotificationsInteractor].
33  */
34 class DisplaySwitchNotificationsHiderTracker @Inject constructor(
35     private val notificationsInteractor: ShadeInteractor,
36     private val latencyTracker: LatencyTracker
37 ) {
38 
39     suspend fun trackNotificationHideTime(shouldHideNotifications: Flow<Boolean>) {
40         shouldHideNotifications
41             .collect { shouldHide ->
42                 if (shouldHide) {
43                     latencyTracker.onActionStart(ACTION_NOTIFICATIONS_HIDDEN_FOR_MEASURE)
44                 } else {
45                     latencyTracker.onActionEnd(ACTION_NOTIFICATIONS_HIDDEN_FOR_MEASURE)
46                 }
47             }
48     }
49 
50     suspend fun trackNotificationHideTimeWhenVisible(shouldHideNotifications: Flow<Boolean>) {
51         combine(shouldHideNotifications, notificationsInteractor.isAnyExpanded)
52             { hidden, shadeExpanded -> hidden && shadeExpanded }
53             .distinctUntilChanged()
54             .collect { hiddenButShouldBeVisible ->
55                 if (hiddenButShouldBeVisible) {
56                     latencyTracker.onActionStart(
57                             ACTION_NOTIFICATIONS_HIDDEN_FOR_MEASURE_WITH_SHADE_OPEN)
58                 } else {
59                     latencyTracker.onActionEnd(
60                             ACTION_NOTIFICATIONS_HIDDEN_FOR_MEASURE_WITH_SHADE_OPEN)
61                 }
62             }
63     }
64 }