146 lines
4.5 KiB
Plaintext
146 lines
4.5 KiB
Plaintext
/*
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* Copyright (C) 2006, 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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*
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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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* 3. Neither the name of Apple Inc. ("Apple") nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY 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 OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#import "WebDocumentLoaderMac.h"
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#import "WebKitVersionChecks.h"
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#import "WebView.h"
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using namespace WebCore;
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WebDocumentLoaderMac::WebDocumentLoaderMac(const ResourceRequest& request, const SubstituteData& substituteData)
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: DocumentLoader(request, substituteData)
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, m_dataSource(nil)
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, m_isDataSourceRetained(false)
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{
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}
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static inline bool needsDataLoadWorkaround(WebView *webView)
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{
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#if !PLATFORM(IOS_FAMILY)
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static bool needsWorkaround = !WebKitLinkedOnOrAfter(WEBKIT_FIRST_VERSION_WITHOUT_ADOBE_INSTALLER_QUIRK)
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&& [[[NSBundle mainBundle] bundleIdentifier] isEqualToString:@"com.adobe.Installers.Setup"];
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return needsWorkaround;
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#else
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return NO;
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#endif
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}
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void WebDocumentLoaderMac::setDataSource(WebDataSource *dataSource, WebView *webView)
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{
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ASSERT(!m_dataSource);
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ASSERT(!m_isDataSourceRetained);
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m_dataSource = dataSource;
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retainDataSource();
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m_resourceLoadDelegate = [webView resourceLoadDelegate];
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m_downloadDelegate = [webView downloadDelegate];
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// Some clients run the run loop in a way that prevents the data load timer
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// from firing. We work around that issue here. See <rdar://problem/5266289>
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// and <rdar://problem/5049509>.
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if (needsDataLoadWorkaround(webView))
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m_deferMainResourceDataLoad = false;
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}
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WebDataSource *WebDocumentLoaderMac::dataSource() const
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{
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return m_dataSource;
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}
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void WebDocumentLoaderMac::attachToFrame()
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{
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DocumentLoader::attachToFrame();
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retainDataSource();
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}
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void WebDocumentLoaderMac::detachFromFrame()
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{
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DocumentLoader::detachFromFrame();
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if (m_loadingResources.isEmpty())
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releaseDataSource();
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// FIXME: What prevents the data source from getting deallocated while the
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// frame is not attached?
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}
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void WebDocumentLoaderMac::increaseLoadCount(unsigned long identifier)
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{
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ASSERT(m_dataSource);
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if (m_loadingResources.contains(identifier))
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return;
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m_loadingResources.add(identifier);
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retainDataSource();
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}
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void WebDocumentLoaderMac::decreaseLoadCount(unsigned long identifier)
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{
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HashSet<unsigned long>::iterator it = m_loadingResources.find(identifier);
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// It is valid for a load to be cancelled before it's started.
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if (it == m_loadingResources.end())
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return;
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m_loadingResources.remove(it);
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if (m_loadingResources.isEmpty()) {
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m_resourceLoadDelegate = 0;
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m_downloadDelegate = 0;
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if (!frame())
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releaseDataSource();
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}
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}
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void WebDocumentLoaderMac::retainDataSource()
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{
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if (m_isDataSourceRetained || !m_dataSource)
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return;
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m_isDataSourceRetained = true;
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CFRetain(m_dataSource);
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}
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void WebDocumentLoaderMac::releaseDataSource()
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{
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if (!m_isDataSourceRetained)
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return;
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ASSERT(m_dataSource);
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m_isDataSourceRetained = false;
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CFRelease(m_dataSource);
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}
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void WebDocumentLoaderMac::detachDataSource()
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{
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ASSERT(!m_isDataSourceRetained);
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m_dataSource = nil;
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}
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