1/*
2 * Copyright (C) 2013 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "core/html/track/vtt/VTTRegionList.h"
28
29namespace blink {
30
31VTTRegionList::VTTRegionList()
32{
33}
34
35unsigned long VTTRegionList::length() const
36{
37    return m_list.size();
38}
39
40VTTRegion* VTTRegionList::item(unsigned index) const
41{
42    if (index < m_list.size())
43        return m_list[index].get();
44
45    return 0;
46}
47
48VTTRegion* VTTRegionList::getRegionById(const String& id) const
49{
50    if (id.isEmpty())
51        return 0;
52
53    for (size_t i = 0; i < m_list.size(); ++i) {
54        if (m_list[i]->id() == id)
55            return m_list[i].get();
56    }
57
58    return 0;
59}
60
61void VTTRegionList::add(PassRefPtrWillBeRawPtr<VTTRegion> region)
62{
63    m_list.append(region);
64}
65
66bool VTTRegionList::remove(VTTRegion* region)
67{
68    size_t index = m_list.find(region);
69    if (index == kNotFound)
70        return false;
71
72    m_list.remove(index);
73    return true;
74}
75
76void VTTRegionList::trace(Visitor* visitor)
77{
78    visitor->trace(m_list);
79}
80
81} // namespace blink
82