blob: 18751a425335333845d7f6996900c2c72e738809 [file] [log] [blame]
/*
* 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/imports/LinkImport.h"
#include "core/dom/Document.h"
#include "core/fetch/CrossOriginAccessControl.h"
#include "core/html/HTMLLinkElement.h"
#include "core/html/imports/HTMLImportChild.h"
#include "core/html/imports/HTMLImportsController.h"
namespace WebCore {
PassOwnPtr<LinkImport> LinkImport::create(HTMLLinkElement* owner)
{
return adoptPtr(new LinkImport(owner));
}
LinkImport::LinkImport(HTMLLinkElement* owner)
: LinkResource(owner)
, m_child(0)
{
}
LinkImport::~LinkImport()
{
clear();
}
Document* LinkImport::importedDocument() const
{
if (!m_child || !m_owner || !m_owner->inDocument())
return 0;
return m_child->importedDocument();
}
void LinkImport::process()
{
if (m_child)
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_child = controller->load(parent, this, builder.build(true));
if (!m_child) {
didFinish();
return;
}
}
void LinkImport::clear()
{
m_owner = 0;
if (m_child) {
m_child->clearClient();
m_child = 0;
}
}
void LinkImport::didFinish()
{
if (!m_owner || !m_owner->inDocument())
return;
// Because didFinish() is called from import's own scheduler in HTMLImportsController,
// we don't need to scheduleEvent() here.
m_owner->dispatchEventImmediately();
}
void LinkImport::importChildWasDestroyed(HTMLImportChild* child)
{
ASSERT(m_child == child);
m_child = 0;
clear();
}
bool LinkImport::isSync() const
{
return m_owner && m_owner->isCreatedByParser() && !m_owner->async();
}
HTMLLinkElement* LinkImport::link()
{
return m_owner;
}
bool LinkImport::hasLoaded() const
{
return m_child && m_child->isDone() && !m_child->loaderHasError();
}
bool LinkImport::ownsLoader() const
{
return m_child && m_child->hasLoader() && m_child->ownsLoader();
}
} // namespace WebCore