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/*
* Copyright (C) 2009 Google Inc. All rights reserved.
* Copyright (C) 2010 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:
*
* * 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/workers/SharedWorker.h"
#include "bindings/v8/ExceptionState.h"
#include "core/dom/ExceptionCode.h"
#include "core/dom/MessageChannel.h"
#include "core/dom/MessagePort.h"
#include "core/dom/ScriptExecutionContext.h"
#include "core/inspector/InspectorInstrumentation.h"
#include "core/page/UseCounter.h"
#include "core/workers/SharedWorkerRepository.h"
#include "weborigin/KURL.h"
#include "weborigin/SecurityOrigin.h"
namespace WebCore {
inline SharedWorker::SharedWorker(ScriptExecutionContext* context)
: AbstractWorker(context)
{
ScriptWrappable::init(this);
}
PassRefPtr<SharedWorker> SharedWorker::create(ScriptExecutionContext* context, const String& url, const String& name, ExceptionState& es)
{
ASSERT(isMainThread());
UseCounter::count(toDocument(context)->domWindow(), UseCounter::SharedWorkerStart);
RefPtr<SharedWorker> worker = adoptRef(new SharedWorker(context));
RefPtr<MessageChannel> channel = MessageChannel::create(context);
worker->m_port = channel->port1();
OwnPtr<MessagePortChannel> remotePort = channel->port2()->disentangle();
ASSERT(remotePort);
worker->suspendIfNeeded();
KURL scriptURL = worker->resolveURL(url, es);
if (scriptURL.isEmpty())
return 0;
// We don't currently support nested workers, so workers can only be created from documents.
ASSERT_WITH_SECURITY_IMPLICATION(context->isDocument());
Document* document = toDocument(context);
if (!document->securityOrigin()->canAccessSharedWorkers()) {
es.throwDOMException(SecurityError);
return 0;
}
SharedWorkerRepository::connect(worker.get(), remotePort.release(), scriptURL, name, es);
return worker.release();
}
SharedWorker::~SharedWorker()
{
}
const AtomicString& SharedWorker::interfaceName() const
{
return eventNames().interfaceForSharedWorker;
}
} // namespace WebCore
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