1 /*
2  * 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 package com.android.systemui.util.display;
17 
18 import android.content.Context;
19 import android.graphics.Rect;
20 import android.hardware.display.DisplayManager;
21 import android.view.Display;
22 import android.view.WindowManager;
23 
24 import javax.inject.Inject;
25 
26 /**
27  * Utility class for working with displays.
28  */
29 public class DisplayHelper {
30     private final Context mContext;
31     private final DisplayManager mDisplayManager;
32 
33     /**
34      * Default constructor.
35      */
36     @Inject
DisplayHelper(Context context, DisplayManager displayManager)37     public DisplayHelper(Context context, DisplayManager displayManager) {
38         mContext = context;
39         mDisplayManager = displayManager;
40     }
41 
42 
43     /**
44      * Returns the maximum display bounds for the given window context type.
45      */
getMaxBounds(int displayId, int windowContextType)46     public Rect getMaxBounds(int displayId, int windowContextType) {
47         final Display display = mDisplayManager.getDisplay(displayId);
48         WindowManager windowManager = mContext.createDisplayContext(display)
49                 .createWindowContext(windowContextType, null)
50                 .getSystemService(WindowManager.class);
51         return windowManager.getMaximumWindowMetrics().getBounds();
52     }
53 }
54