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/*
* Copyright (C) 2008, 2010, 2016 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 INC. 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.
*/
#pragma once
#include "AbstractWorker.h"
#include "ActiveDOMObject.h"
#include "ContentSecurityPolicyResponseHeaders.h"
#include "EventTarget.h"
#include "GenericEventQueue.h"
#include "MessagePort.h"
#include "WorkerScriptLoaderClient.h"
#include <JavaScriptCore/RuntimeFlags.h>
#include <wtf/MonotonicTime.h>
#include <wtf/Optional.h>
#include <wtf/text/AtomStringHash.h>
namespace JSC {
class CallFrame;
class JSObject;
class JSValue;
using ExecState = CallFrame;
}
namespace WebCore {
class ScriptExecutionContext;
class WorkerGlobalScopeProxy;
class WorkerScriptLoader;
class Worker final : public AbstractWorker, public ActiveDOMObject, private WorkerScriptLoaderClient {
WTF_MAKE_ISO_ALLOCATED(Worker);
public:
struct Options {
String name;
};
static ExceptionOr<Ref<Worker>> create(ScriptExecutionContext&, JSC::RuntimeFlags, const String& url, const Options&);
virtual ~Worker();
ExceptionOr<void> postMessage(JSC::ExecState&, JSC::JSValue message, Vector<JSC::Strong<JSC::JSObject>>&&);
void terminate();
bool hasPendingActivity() const final;
String identifier() const { return m_identifier; }
ScriptExecutionContext* scriptExecutionContext() const final { return ActiveDOMObject::scriptExecutionContext(); }
void enqueueEvent(Ref<Event>&&);
private:
explicit Worker(ScriptExecutionContext&, JSC::RuntimeFlags, const Options&);
void dispatchEvent(Event&) final;
EventTargetInterface eventTargetInterface() const final { return WorkerEventTargetInterfaceType; }
void notifyNetworkStateChange(bool isOnline);
void didReceiveResponse(unsigned long identifier, const ResourceResponse&) final;
void notifyFinished() final;
bool canSuspendForDocumentSuspension() const final;
void stop() final;
const char* activeDOMObjectName() const final;
static void networkStateChanged(bool isOnLine);
RefPtr<WorkerScriptLoader> m_scriptLoader;
String m_name;
String m_identifier;
WorkerGlobalScopeProxy& m_contextProxy; // The proxy outlives the worker to perform thread shutdown.
Optional<ContentSecurityPolicyResponseHeaders> m_contentSecurityPolicyResponseHeaders;
MonotonicTime m_workerCreationTime;
bool m_shouldBypassMainWorldContentSecurityPolicy { false };
JSC::RuntimeFlags m_runtimeFlags;
UniqueRef<GenericEventQueue> m_eventQueue;
};
} // namespace WebCore