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/*
* Copyright (C) 2013 Google 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER OR 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.
*/
#include "config.h"
#include "core/html/LinkImport.h"
#include "core/dom/Document.h"
#include "core/fetch/CrossOriginAccessControl.h"
#include "core/html/HTMLImportChild.h"
#include "core/html/HTMLImportsController.h"
#include "core/html/HTMLLinkElement.h"
namespace WebCore {
PassOwnPtr<LinkImport> LinkImport::create(HTMLLinkElement* owner)
{
return adoptPtr(new LinkImport(owner));
}
LinkImport::LinkImport(HTMLLinkElement* owner)
: LinkResource(owner)
, m_loader(0)
{
}
LinkImport::~LinkImport()
{
clear();
}
Document* LinkImport::importedDocument() const
{
if (!m_loader)
return 0;
return m_loader->importedDocument();
}
void LinkImport::process()
{
if (m_loader)
return;
if (!m_owner)
return;
if (!shouldLoadResource())
return;
if (!m_owner->document().import()) {
ASSERT(m_owner->document().frame()); // The document should be the master.
HTMLImportsController::provideTo(&m_owner->document());
}
LinkRequestBuilder builder(m_owner);
if (!builder.isValid()) {
didFinish();
return;
}
HTMLImport* parent = m_owner->document().import();
HTMLImportsController* controller = parent->controller();
m_loader = controller->load(parent, this, builder.build(true));
if (!m_loader) {
didFinish();
return;
}
}
void LinkImport::clear()
{
m_owner = 0;
if (m_loader) {
m_loader->clearClient();
m_loader = 0;
}
}
void LinkImport::ownerRemoved()
{
clear();
}
void LinkImport::didFinish()
{
if (!m_owner)
return;
m_owner->scheduleEvent();
}
void LinkImport::loaderWillBeDestroyed()
{
clear();
}
bool LinkImport::hasLoaded() const
{
return m_loader && m_loader->isLoaded();
}
} // namespace WebCore
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