1 /*
2  * Copyright (C) 2022 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.collection.provider
18 
19 import com.android.systemui.dagger.SysUISingleton
20 import com.android.systemui.statusbar.notification.VisibilityLocationProvider
21 import com.android.systemui.statusbar.notification.collection.NotificationEntry
22 import javax.inject.Inject
23 
24 /**
25  * An injectable component which delegates the visibility location computation to a delegate which
26  * can be initialized after the initial injection, generally because it's provided by a view.
27  */
28 @SysUISingleton
29 class VisibilityLocationProviderDelegator @Inject constructor() : VisibilityLocationProvider {
30     private var delegate: VisibilityLocationProvider? = null
31 
setDelegatenull32     fun setDelegate(provider: VisibilityLocationProvider) {
33         delegate = provider
34     }
35 
isInVisibleLocationnull36     override fun isInVisibleLocation(entry: NotificationEntry): Boolean =
37         requireNotNull(this.delegate) { "delegate not initialized" }.isInVisibleLocation(entry)
38 }
39