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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 */
37     public WindowContainerToken(IWindowContainerToken realToken) {
38         mRealToken = realToken;
39     }
40 
41     private WindowContainerToken(Parcel in) {
42         mRealToken = IWindowContainerToken.Stub.asInterface(in.readStrongBinder());
43     }
44 
45     /** @hide */
46     public IBinder asBinder() {
47         return mRealToken.asBinder();
48     }
49 
50     @Override
51     /** @hide */
52     public void writeToParcel(@NonNull Parcel dest, int flags) {
53         dest.writeStrongBinder(mRealToken.asBinder());
54     }
55 
56     @NonNull
57     public static final Creator<WindowContainerToken> CREATOR =
58             new Creator<WindowContainerToken>() {
59                 @Override
60                 public WindowContainerToken createFromParcel(Parcel in) {
61                     return new WindowContainerToken(in);
62                 }
63 
64                 @Override
65                 public WindowContainerToken[] newArray(int size) {
66                     return new WindowContainerToken[size];
67                 }
68             };
69 
70     @Override
71     /** @hide */
72     public int describeContents() {
73         return 0;
74     }
75 
76     @Override
77     public int hashCode() {
78         return mRealToken.asBinder().hashCode();
79     }
80 
81     @Override
82     public String toString() {
83         return "WCT{" + mRealToken + "}";
84     }
85 
86     @Override
87     public boolean equals(@Nullable Object obj) {
88         if (!(obj instanceof WindowContainerToken)) {
89             return false;
90         }
91         return mRealToken.asBinder() == ((WindowContainerToken) obj).asBinder();
92     }
93 }
94