1 /*
<lambda>null2  * 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.res.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 import javax.inject.Provider
31 
32 /**
33  * Responsible for creating the status bar window and initializing the root components of that
34  * window (see [CollapsedStatusBarFragment])
35  */
36 @SysUISingleton
37 class StatusBarInitializer @Inject constructor(
38     private val windowController: StatusBarWindowController,
39     private val collapsedStatusBarFragmentProvider: Provider<CollapsedStatusBarFragment>,
40     private val creationListeners: Set<@JvmSuppressWildcards OnStatusBarViewInitializedListener>,
41 ) {
42 
43     var statusBarViewUpdatedListener: OnStatusBarViewUpdatedListener? = null
44 
45     /**
46      * Creates the status bar window and root views, and initializes the component.
47      *
48      * TODO(b/277764509): Initialize the status bar via [CoreStartable#start].
49      */
50     fun initializeStatusBar() {
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                 }
71         ).fragmentManager
72                 .beginTransaction()
73                 .replace(
74                     R.id.status_bar_container,
75                     collapsedStatusBarFragmentProvider.get(),
76                     CollapsedStatusBarFragment.TAG
77                 )
78                 .commit()
79     }
80 
81     interface OnStatusBarViewInitializedListener {
82 
83         /**
84          * The status bar view has been initialized.
85          *
86          * @param component Dagger component that is created when the status bar view is created.
87          * Can be used to retrieve dependencies from that scope, including the status bar root view.
88          */
89         fun onStatusBarViewInitialized(component: StatusBarFragmentComponent)
90     }
91 
92     interface OnStatusBarViewUpdatedListener {
93         fun onStatusBarViewUpdated(
94             statusBarView: PhoneStatusBarView,
95             statusBarViewController: PhoneStatusBarViewController,
96             statusBarTransitions: PhoneStatusBarTransitions
97         )
98     }
99 }
100