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 android.window;
18 
19 import android.annotation.NonNull;
20 import android.annotation.Nullable;
21 import android.annotation.TestApi;
22 import android.os.IBinder;
23 import android.os.Parcel;
24 import android.os.Parcelable;
25 
26 /**
27  * Interface for a window container to communicate with the window manager. This also acts as a
28  * token.
29  * @hide
30  */
31 @TestApi
32 public final class WindowContainerToken implements Parcelable {
33 
34     private final IWindowContainerToken mRealToken;
35 
36     /** @hide */
WindowContainerToken(IWindowContainerToken realToken)37     public WindowContainerToken(IWindowContainerToken realToken) {
38         mRealToken = realToken;
39     }
40 
WindowContainerToken(Parcel in)41     private WindowContainerToken(Parcel in) {
42         mRealToken = IWindowContainerToken.Stub.asInterface(in.readStrongBinder());
43     }
44 
45     /** @hide */
asBinder()46     public IBinder asBinder() {
47         return mRealToken.asBinder();
48     }
49 
50     @Override
writeToParcel(@onNull Parcel dest, int flags)51     public void writeToParcel(@NonNull Parcel dest, int flags) {
52         dest.writeStrongBinder(mRealToken.asBinder());
53     }
54 
55     @NonNull
56     public static final Creator<WindowContainerToken> CREATOR =
57             new Creator<WindowContainerToken>() {
58                 @Override
59                 public WindowContainerToken createFromParcel(Parcel in) {
60                     return new WindowContainerToken(in);
61                 }
62 
63                 @Override
64                 public WindowContainerToken[] newArray(int size) {
65                     return new WindowContainerToken[size];
66                 }
67             };
68 
69     @Override
describeContents()70     public int describeContents() {
71         return 0;
72     }
73 
74     @Override
hashCode()75     public int hashCode() {
76         return mRealToken.asBinder().hashCode();
77     }
78 
79     @Override
toString()80     public String toString() {
81         return "WCT{" + mRealToken + "}";
82     }
83 
84     @Override
equals(@ullable Object obj)85     public boolean equals(@Nullable Object obj) {
86         if (!(obj instanceof WindowContainerToken)) {
87             return false;
88         }
89         return mRealToken.asBinder() == ((WindowContainerToken) obj).asBinder();
90     }
91 }
92