1 /* <lambda>null2 * 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.bouncer.ui.viewmodel 18 19 import android.view.View 20 import com.android.systemui.bouncer.domain.interactor.PrimaryBouncerInteractor 21 import com.android.systemui.bouncer.shared.model.BouncerShowMessageModel 22 import com.android.systemui.bouncer.ui.BouncerView 23 import com.android.systemui.bouncer.ui.BouncerViewDelegate 24 import javax.inject.Inject 25 import kotlinx.coroutines.flow.Flow 26 import kotlinx.coroutines.flow.map 27 28 /** Models UI state for the lock screen bouncer; handles user input. */ 29 class KeyguardBouncerViewModel 30 @Inject 31 constructor( 32 private val view: BouncerView, 33 private val interactor: PrimaryBouncerInteractor, 34 ) { 35 /** Observe on bouncer expansion amount. */ 36 val bouncerExpansionAmount: Flow<Float> = interactor.panelExpansionAmount 37 38 /** Can the user interact with the view? */ 39 val isInteractable: Flow<Boolean> = interactor.isInteractable 40 41 /** Observe whether bouncer is showing or not. */ 42 val isShowing: Flow<Boolean> = interactor.isShowing 43 44 /** Observe whether bouncer is starting to hide. */ 45 val startingToHide: Flow<Unit> = interactor.startingToHide 46 47 /** Observe whether we want to start the disappear animation. */ 48 val startDisappearAnimation: Flow<Runnable> = interactor.startingDisappearAnimation 49 50 /** Observe whether we want to update keyguard position. */ 51 val keyguardPosition: Flow<Float> = interactor.keyguardPosition 52 53 /** Observe whether we want to update resources. */ 54 val updateResources: Flow<Boolean> = interactor.resourceUpdateRequests 55 56 /** Observe whether we want to set a keyguard message when the bouncer shows. */ 57 val bouncerShowMessage: Flow<BouncerShowMessageModel> = interactor.showMessage 58 59 /** Observe whether keyguard is authenticated already. */ 60 val keyguardAuthenticated: Flow<Boolean> = interactor.keyguardAuthenticatedBiometrics 61 62 /** Observe whether we want to update resources. */ 63 fun notifyUpdateResources() { 64 interactor.notifyUpdatedResources() 65 } 66 67 /** Notify that keyguard authenticated was handled */ 68 fun notifyKeyguardAuthenticated() { 69 interactor.notifyKeyguardAuthenticatedHandled() 70 } 71 72 /** Notifies that the message was shown. */ 73 fun onMessageShown() { 74 interactor.onMessageShown() 75 } 76 77 /** Observe whether back button is enabled. */ 78 fun observeOnIsBackButtonEnabled(systemUiVisibility: () -> Int): Flow<Int> { 79 return interactor.isBackButtonEnabled.map { enabled -> 80 var vis: Int = systemUiVisibility() 81 vis = 82 if (enabled) { 83 vis and View.STATUS_BAR_DISABLE_BACK.inv() 84 } else { 85 vis or View.STATUS_BAR_DISABLE_BACK 86 } 87 vis 88 } 89 } 90 91 /** Set an abstraction that will hold reference to the ui delegate for the bouncer view. */ 92 fun setBouncerViewDelegate(delegate: BouncerViewDelegate?) { 93 view.delegate = delegate 94 } 95 } 96