1 /*
<lambda>null2  * Copyright (C) 2023 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.keyguard.ui.binder
18 
19 import androidx.lifecycle.Lifecycle
20 import androidx.lifecycle.repeatOnLifecycle
21 import com.android.app.tracing.coroutines.launch
22 import com.android.keyguard.AuthKeyguardMessageArea
23 import com.android.systemui.keyguard.ui.viewmodel.AlternateBouncerMessageAreaViewModel
24 import com.android.systemui.lifecycle.repeatWhenAttached
25 import kotlinx.coroutines.ExperimentalCoroutinesApi
26 
27 /** Binds the alternate bouncer message view to its view-model. */
28 @ExperimentalCoroutinesApi
29 object AlternateBouncerMessageAreaViewBinder {
30 
31     /** Binds the view to the view-model, continuing to update the former based on the latter. */
32     @JvmStatic
33     fun bind(
34         view: AuthKeyguardMessageArea,
35         viewModel: AlternateBouncerMessageAreaViewModel,
36     ) {
37         view.setIsVisible(true)
38         view.repeatWhenAttached {
39             repeatOnLifecycle(Lifecycle.State.STARTED) {
40                 launch("$TAG#viewModel.message") {
41                     viewModel.message.collect { biometricMsg ->
42                         if (biometricMsg == null) {
43                             view.setMessage("", true)
44                         } else {
45                             view.setMessage(biometricMsg.message, true)
46                         }
47                     }
48                 }
49             }
50         }
51     }
52 
53     private const val TAG = "AlternateBouncerMessageAreaViewBinder"
54 }
55