1/*
2 * Copyright (C) 2008 Apple 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 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 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#pragma once
27
28#include <wtf/HashSet.h>
29#include <wtf/Noncopyable.h>
30#include <wtf/text/WTFString.h>
31
32namespace WebCore {
33
34class Page;
35#if ENABLE(VIDEO_TRACK)
36class CaptionUserPreferences;
37#endif
38
39class PageGroup {
40 WTF_MAKE_NONCOPYABLE(PageGroup); WTF_MAKE_FAST_ALLOCATED;
41public:
42 WEBCORE_EXPORT explicit PageGroup(const String& name);
43 explicit PageGroup(Page&);
44 ~PageGroup();
45
46 WEBCORE_EXPORT static PageGroup* pageGroup(const String& groupName);
47
48 const HashSet<Page*>& pages() const { return m_pages; }
49
50 void addPage(Page&);
51 void removePage(Page&);
52
53 const String& name() { return m_name; }
54 unsigned identifier() { return m_identifier; }
55
56#if ENABLE(VIDEO_TRACK)
57 WEBCORE_EXPORT void captionPreferencesChanged();
58 WEBCORE_EXPORT CaptionUserPreferences& captionPreferences();
59#endif
60
61private:
62 String m_name;
63 HashSet<Page*> m_pages;
64
65 unsigned m_identifier;
66
67#if ENABLE(VIDEO_TRACK)
68 std::unique_ptr<CaptionUserPreferences> m_captionPreferences;
69#endif
70};
71
72} // namespace WebCore
73