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