1 /* 2 * Copyright (C) 2021 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 package com.android.systemui.statusbar.core 17 18 import android.app.Fragment 19 import com.android.systemui.R 20 import com.android.systemui.dagger.SysUISingleton 21 import com.android.systemui.fragments.FragmentHostManager 22 import com.android.systemui.statusbar.phone.PhoneStatusBarTransitions 23 import com.android.systemui.statusbar.phone.PhoneStatusBarView 24 import com.android.systemui.statusbar.phone.PhoneStatusBarViewController 25 import com.android.systemui.statusbar.phone.fragment.CollapsedStatusBarFragment 26 import com.android.systemui.statusbar.phone.fragment.dagger.StatusBarFragmentComponent 27 import com.android.systemui.statusbar.window.StatusBarWindowController 28 import java.lang.IllegalStateException 29 import javax.inject.Inject 30 31 /** 32 * Responsible for creating the status bar window and initializing the root components of that 33 * window (see [CollapsedStatusBarFragment]) 34 */ 35 @SysUISingleton 36 class StatusBarInitializer @Inject constructor( 37 private val windowController: StatusBarWindowController, 38 private val creationListeners: Set<@JvmSuppressWildcards OnStatusBarViewInitializedListener>, 39 ) { 40 41 var statusBarViewUpdatedListener: OnStatusBarViewUpdatedListener? = null 42 43 /** 44 * Creates the status bar window and root views, and initializes the component. 45 * 46 * TODO(b/277762009): Inject StatusBarFragmentCreator and make this class a CoreStartable. 47 */ 48 fun initializeStatusBar( 49 statusBarFragmentCreator: () -> CollapsedStatusBarFragment, 50 ) { 51 windowController.fragmentHostManager.addTagListener( 52 CollapsedStatusBarFragment.TAG, 53 object : FragmentHostManager.FragmentListener { 54 override fun onFragmentViewCreated(tag: String, fragment: Fragment) { 55 val statusBarFragmentComponent = (fragment as CollapsedStatusBarFragment) 56 .statusBarFragmentComponent ?: throw IllegalStateException() 57 statusBarViewUpdatedListener?.onStatusBarViewUpdated( 58 statusBarFragmentComponent.phoneStatusBarView, 59 statusBarFragmentComponent.phoneStatusBarViewController, 60 statusBarFragmentComponent.phoneStatusBarTransitions 61 ) 62 creationListeners.forEach { listener -> 63 listener.onStatusBarViewInitialized(statusBarFragmentComponent) 64 } 65 } 66 67 override fun onFragmentViewDestroyed(tag: String?, fragment: Fragment?) { 68 // nop 69 } 70 }).fragmentManager 71 .beginTransaction() 72 .replace(R.id.status_bar_container, 73 statusBarFragmentCreator.invoke(), 74 CollapsedStatusBarFragment.TAG) 75 .commit() 76 } 77 78 interface OnStatusBarViewInitializedListener { 79 80 /** 81 * The status bar view has been initialized. 82 * 83 * @param component Dagger component that is created when the status bar view is created. 84 * Can be used to retrieve dependencies from that scope, including the status bar root view. 85 */ 86 fun onStatusBarViewInitialized(component: StatusBarFragmentComponent) 87 } 88 89 interface OnStatusBarViewUpdatedListener { 90 fun onStatusBarViewUpdated( 91 statusBarView: PhoneStatusBarView, 92 statusBarViewController: PhoneStatusBarViewController, 93 statusBarTransitions: PhoneStatusBarTransitions 94 ) 95 } 96 } 97