1/*
2 * Copyright (C) 2013 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
17package android.hardware.input;
18
19import java.util.Objects;
20
21import android.os.Parcel;
22import android.os.Parcelable;
23import android.text.TextUtils;
24
25/**
26 * Wrapper for passing identifying information for input devices.
27 *
28 * @hide
29 */
30public final class InputDeviceIdentifier implements Parcelable {
31    private final String mDescriptor;
32    private final int mVendorId;
33    private final int mProductId;
34
35    public InputDeviceIdentifier(String descriptor, int vendorId, int productId) {
36        this.mDescriptor = descriptor;
37        this.mVendorId = vendorId;
38        this.mProductId = productId;
39    }
40
41    private InputDeviceIdentifier(Parcel src) {
42        mDescriptor = src.readString();
43        mVendorId = src.readInt();
44        mProductId = src.readInt();
45    }
46
47    @Override
48    public int describeContents() {
49        return 0;
50    }
51
52    @Override
53    public void writeToParcel(Parcel dest, int flags) {
54        dest.writeString(mDescriptor);
55        dest.writeInt(mVendorId);
56        dest.writeInt(mProductId);
57    }
58
59    public String getDescriptor() {
60        return mDescriptor;
61    }
62
63    public int getVendorId() {
64        return mVendorId;
65    }
66
67    public int getProductId() {
68        return mProductId;
69    }
70
71    @Override
72    public boolean equals(Object o) {
73        if (this == o) return true;
74        if (o == null || !(o instanceof InputDeviceIdentifier)) return false;
75
76        final InputDeviceIdentifier that = (InputDeviceIdentifier) o;
77        return ((mVendorId == that.mVendorId) && (mProductId == that.mProductId)
78                && TextUtils.equals(mDescriptor, that.mDescriptor));
79    }
80
81    @Override
82    public int hashCode() {
83        return Objects.hash(mDescriptor, mVendorId, mProductId);
84    }
85
86    public static final Parcelable.Creator<InputDeviceIdentifier> CREATOR =
87            new Parcelable.Creator<InputDeviceIdentifier>() {
88
89        @Override
90        public InputDeviceIdentifier createFromParcel(Parcel source) {
91            return new InputDeviceIdentifier(source);
92        }
93
94        @Override
95        public InputDeviceIdentifier[] newArray(int size) {
96            return new InputDeviceIdentifier[size];
97        }
98
99    };
100}
101