1/*
2 * Copyright (C) 2010 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 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#include "config.h"
27#include "core/dom/DocumentParser.h"
28
29#include "core/dom/Document.h"
30#include "core/dom/DocumentParserClient.h"
31#include "core/html/parser/TextResourceDecoder.h"
32#include "wtf/Assertions.h"
33
34namespace blink {
35
36DocumentParser::DocumentParser(Document* document)
37    : m_state(ParsingState)
38    , m_documentWasLoadedAsPartOfNavigation(false)
39    , m_document(document)
40{
41    ASSERT(document);
42}
43
44DocumentParser::~DocumentParser()
45{
46#if !ENABLE(OILPAN)
47    // Document is expected to call detach() before releasing its ref.
48    // This ASSERT is slightly awkward for parsers with a fragment case
49    // as there is no Document to release the ref.
50    ASSERT(!m_document);
51#endif
52}
53
54void DocumentParser::trace(Visitor* visitor)
55{
56    visitor->trace(m_document);
57#if ENABLE(OILPAN)
58    visitor->trace(m_clients);
59#endif
60}
61
62void DocumentParser::setDecoder(PassOwnPtr<TextResourceDecoder>)
63{
64    ASSERT_NOT_REACHED();
65}
66
67TextResourceDecoder* DocumentParser::decoder()
68{
69    return 0;
70}
71
72void DocumentParser::prepareToStopParsing()
73{
74    ASSERT(m_state == ParsingState);
75    m_state = StoppingState;
76}
77
78void DocumentParser::stopParsing()
79{
80    m_state = StoppedState;
81
82    // Clients may be removed while in the loop. Make a snapshot for iteration.
83    WillBeHeapVector<RawPtrWillBeMember<DocumentParserClient> > clientsSnapshot;
84    copyToVector(m_clients, clientsSnapshot);
85
86    for (WillBeHeapVector<RawPtrWillBeMember<DocumentParserClient> >::const_iterator it = clientsSnapshot.begin(), itEnd = clientsSnapshot.end(); it != itEnd; ++it) {
87        DocumentParserClient* client = *it;
88        if (!m_clients.contains(client))
89            continue;
90
91        client->notifyParserStopped();
92    }
93}
94
95void DocumentParser::detach()
96{
97    m_state = DetachedState;
98    m_document = nullptr;
99}
100
101void DocumentParser::suspendScheduledTasks()
102{
103}
104
105void DocumentParser::resumeScheduledTasks()
106{
107}
108
109void DocumentParser::addClient(DocumentParserClient* client)
110{
111    m_clients.add(client);
112}
113
114void DocumentParser::removeClient(DocumentParserClient* client)
115{
116    m_clients.remove(client);
117}
118
119};
120
121