| /* |
| * Copyright (C) 2006, 2007 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the name of Apple Inc. ("Apple") nor the names of |
| * its contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #import "WebDocumentLoaderMac.h" |
| |
| #import "WebKitVersionChecks.h" |
| #import "WebView.h" |
| |
| using namespace WebCore; |
| |
| WebDocumentLoaderMac::WebDocumentLoaderMac(const ResourceRequest& request, const SubstituteData& substituteData) |
| : DocumentLoader(request, substituteData) |
| , m_dataSource(nil) |
| , m_isDataSourceRetained(false) |
| { |
| } |
| |
| static inline bool needsDataLoadWorkaround(WebView *webView) |
| { |
| #if !PLATFORM(IOS) |
| static bool needsWorkaround = !WebKitLinkedOnOrAfter(WEBKIT_FIRST_VERSION_WITHOUT_ADOBE_INSTALLER_QUIRK) |
| && [[[NSBundle mainBundle] bundleIdentifier] isEqualToString:@"com.adobe.Installers.Setup"]; |
| return needsWorkaround; |
| #else |
| return NO; |
| #endif |
| } |
| |
| void WebDocumentLoaderMac::setDataSource(WebDataSource *dataSource, WebView *webView) |
| { |
| ASSERT(!m_dataSource); |
| ASSERT(!m_isDataSourceRetained); |
| |
| m_dataSource = dataSource; |
| retainDataSource(); |
| |
| m_resourceLoadDelegate = [webView resourceLoadDelegate]; |
| m_downloadDelegate = [webView downloadDelegate]; |
| |
| // Some clients run the run loop in a way that prevents the data load timer |
| // from firing. We work around that issue here. See <rdar://problem/5266289> |
| // and <rdar://problem/5049509>. |
| if (needsDataLoadWorkaround(webView)) |
| m_deferMainResourceDataLoad = false; |
| } |
| |
| WebDataSource *WebDocumentLoaderMac::dataSource() const |
| { |
| return m_dataSource; |
| } |
| |
| void WebDocumentLoaderMac::attachToFrame() |
| { |
| DocumentLoader::attachToFrame(); |
| |
| retainDataSource(); |
| } |
| |
| void WebDocumentLoaderMac::detachFromFrame() |
| { |
| DocumentLoader::detachFromFrame(); |
| |
| if (m_loadingResources.isEmpty()) |
| releaseDataSource(); |
| |
| // FIXME: What prevents the data source from getting deallocated while the |
| // frame is not attached? |
| } |
| |
| void WebDocumentLoaderMac::increaseLoadCount(unsigned long identifier) |
| { |
| ASSERT(m_dataSource); |
| |
| if (m_loadingResources.contains(identifier)) |
| return; |
| m_loadingResources.add(identifier); |
| |
| retainDataSource(); |
| } |
| |
| void WebDocumentLoaderMac::decreaseLoadCount(unsigned long identifier) |
| { |
| HashSet<unsigned long>::iterator it = m_loadingResources.find(identifier); |
| |
| // It is valid for a load to be cancelled before it's started. |
| if (it == m_loadingResources.end()) |
| return; |
| |
| m_loadingResources.remove(it); |
| |
| if (m_loadingResources.isEmpty()) { |
| m_resourceLoadDelegate = 0; |
| m_downloadDelegate = 0; |
| if (!frame()) |
| releaseDataSource(); |
| } |
| } |
| |
| void WebDocumentLoaderMac::retainDataSource() |
| { |
| if (m_isDataSourceRetained || !m_dataSource) |
| return; |
| m_isDataSourceRetained = true; |
| CFRetain(m_dataSource); |
| } |
| |
| void WebDocumentLoaderMac::releaseDataSource() |
| { |
| if (!m_isDataSourceRetained) |
| return; |
| ASSERT(m_dataSource); |
| m_isDataSourceRetained = false; |
| CFRelease(m_dataSource); |
| } |
| |
| void WebDocumentLoaderMac::detachDataSource() |
| { |
| ASSERT(!m_isDataSourceRetained); |
| m_dataSource = nil; |
| } |