1/*
2 * Copyright (C) 2016 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 com.android.tv.data;
18
19import android.os.Parcel;
20import android.os.Parcelable;
21
22import java.util.ArrayList;
23import java.util.Collection;
24import java.util.List;
25
26/**
27 * A convenience class for the list of {@link Parcelable}s.
28 */
29public final class ParcelableList<T extends Parcelable> implements Parcelable {
30    /**
31     * Create instance from {@link Parcel}.
32     */
33    public static ParcelableList fromParcel(Parcel in) {
34        ParcelableList list = new ParcelableList();
35        int length = in.readInt();
36        if (length > 0) {
37            for (int i = 0; i < length; ++i) {
38                list.mList.add(in.readParcelable(Thread.currentThread().getContextClassLoader()));
39            }
40        }
41        return list;
42    }
43
44    /**
45     * A creator for {@link ParcelableList}.
46     */
47    public static final Creator<ParcelableList> CREATOR = new Creator<ParcelableList>() {
48        @Override
49        public ParcelableList createFromParcel(Parcel in) {
50            return ParcelableList.fromParcel(in);
51        }
52
53        @Override
54        public ParcelableList[] newArray(int size) {
55            return new ParcelableList[size];
56        }
57    };
58
59    private final List<T> mList = new ArrayList<>();
60
61    private ParcelableList() { }
62
63    public ParcelableList(Collection<T> initialList) {
64        mList.addAll(initialList);
65    }
66
67    /**
68     * Returns the list.
69     */
70    public List<T> getList() {
71        return new ArrayList<T>(mList);
72    }
73
74    @Override
75    public int describeContents() {
76        return 0;
77    }
78
79    @Override
80    public void writeToParcel(Parcel out, int paramInt) {
81        out.writeInt(mList.size());
82        for (T data : mList) {
83            out.writeParcelable(data, 0);
84        }
85    }
86}
87