author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 17 Sep 2010 09:02:29 +0300 | |
changeset 0 | 4f2f89ce4247 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (C) 2007 Apple Inc. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#include "config.h" |
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#include "WebDocumentLoader.h" |
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#include "WebKitDLL.h" |
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using namespace WebCore; |
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WebDocumentLoader::WebDocumentLoader(const ResourceRequest& request, const SubstituteData& substituteData) |
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: DocumentLoader(request, substituteData) |
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, m_dataSource(0) |
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, m_detachedDataSource(0) |
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{ |
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gClassCount++; |
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gClassNameCount.add("WebDocumentLoader"); |
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} |
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PassRefPtr<WebDocumentLoader> WebDocumentLoader::create(const ResourceRequest& req, const SubstituteData& data) |
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{ |
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return adoptRef(new WebDocumentLoader(req, data)); |
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} |
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WebDocumentLoader::~WebDocumentLoader() |
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{ |
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gClassCount--; |
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gClassNameCount.remove("WebDocumentLoader"); |
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if (m_dataSource) { |
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ASSERT(!m_detachedDataSource); |
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m_dataSource->Release(); |
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} |
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} |
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void WebDocumentLoader::setDataSource(WebDataSource *dataSource) |
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{ |
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ASSERT(!m_dataSource); |
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m_dataSource = dataSource; |
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if (m_dataSource) |
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m_dataSource->AddRef(); |
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} |
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WebDataSource* WebDocumentLoader::dataSource() const |
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{ |
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return m_dataSource; |
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} |
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void WebDocumentLoader::detachDataSource() |
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{ |
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// we only call detachDataSource when the WebDataSource is freed - and we won't get there if m_dataSource is not |
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// null (because that would mean the loader still has a reference to the data source) |
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ASSERT(!m_dataSource); |
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m_detachedDataSource = 0; |
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} |
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|
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void WebDocumentLoader::attachToFrame() |
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{ |
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DocumentLoader::attachToFrame(); |
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if (m_detachedDataSource) { |
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ASSERT(!m_dataSource); |
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setDataSource(m_detachedDataSource); |
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m_detachedDataSource = 0; |
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} |
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} |
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|
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void WebDocumentLoader::detachFromFrame() |
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{ |
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DocumentLoader::detachFromFrame(); |
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m_detachedDataSource = m_dataSource; |
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if (m_dataSource) { |
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WebDataSource* dataSourceToBeReleased = m_dataSource; |
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// It's important to null out m_dataSource before calling release on the data source. That release can cause the data |
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// source to be deleted - which ends up calling loader->detachDataSource() which makes the assumption that the loader no |
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// longer holds a reference to the data source. |
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m_dataSource = 0; |
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dataSourceToBeReleased->Release(); |
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} |
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} |