1 /*
2  * Copyright (C) 2020 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.car.window;
18 
19 /**
20  * Controls when to show and hide {@link OverlayViewController}(s).
21  */
22 public interface OverlayViewMediator {
23 
24     /**
25      * Register listeners that could use ContentVisibilityAdjuster to show/hide content.
26      *
27      * Note that we do not unregister listeners because SystemUI components are expected to live
28      * for the lifecycle of the device.
29      */
registerListeners()30     void registerListeners();
31 
32     /**
33      * Allows for post-inflation callbacks and listeners to be set inside required {@link
34      * OverlayViewController}(s).
35      */
setUpOverlayContentViewControllers()36     void setUpOverlayContentViewControllers();
37 }
38