1 /*
2  * 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.data.repository
18 
19 import com.android.systemui.dagger.SysUISingleton
20 import javax.inject.Inject
21 import kotlinx.coroutines.flow.MutableStateFlow
22 
23 /**
24  * This repository contains state generated by the NSSL and required by the composable placeholders
25  * to ensure they are representing the actual contents that will be rendered.
26  */
27 @SysUISingleton
28 class NotificationViewHeightRepository @Inject constructor() {
29 
30     /**
31      * The amount in px that the notification stack should scroll due to internal expansion. This
32      * should only happen when a notification expansion hits the bottom of the screen, so it is
33      * necessary to scroll up to keep expanding the notification.
34      */
35     val syntheticScroll = MutableStateFlow(0f)
36 
37     /**
38      * Whether the current touch gesture is overscroll. If true, it means the NSSL has already
39      * consumed part of the gesture.
40      */
41     val isCurrentGestureOverscroll = MutableStateFlow(false)
42 }
43