Source/WebCore/workers/DedicatedWorkerGlobalScope.cpp

/*
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#include "config.h"
#include "DedicatedWorkerGlobalScope.h"

#include "ContentSecurityPolicyResponseHeaders.h"
#include "DOMWindow.h"
#include "DedicatedWorkerThread.h"
#include "EventNames.h"
#include "JSRTCRtpScriptTransformer.h"
#include "MessageEvent.h"
#include "RTCTransformEvent.h"
#include "RequestAnimationFrameCallback.h"
#include "SecurityOrigin.h"
#include "StructuredSerializeOptions.h"
#include "Worker.h"
#if ENABLE(OFFSCREEN_CANVAS)
#include "WorkerAnimationController.h"
#endif
#include "WorkerObjectProxy.h"
#include <wtf/IsoMallocInlines.h>

namespace WebCore {

WTF_MAKE_ISO_ALLOCATED_IMPL(DedicatedWorkerGlobalScope);

Ref<DedicatedWorkerGlobalScope> DedicatedWorkerGlobalScope::create(const WorkerParameters& params, Ref<SecurityOrigin>&& origin, DedicatedWorkerThread& thread, Ref<SecurityOrigin>&& topOrigin, IDBClient::IDBConnectionProxy* connectionProxy, SocketProvider* socketProvider)
{
    auto context = adoptRef(*new DedicatedWorkerGlobalScope(params, WTFMove(origin), thread, WTFMove(topOrigin), connectionProxy, socketProvider));
    if (!params.shouldBypassMainWorldContentSecurityPolicy)
        context->applyContentSecurityPolicyResponseHeaders(params.contentSecurityPolicyResponseHeaders);
    return context;
}

DedicatedWorkerGlobalScope::DedicatedWorkerGlobalScope(const WorkerParameters& params, Ref<SecurityOrigin>&& origin, DedicatedWorkerThread& thread, Ref<SecurityOrigin>&& topOrigin, IDBClient::IDBConnectionProxy* connectionProxy, SocketProvider* socketProvider)
    : WorkerGlobalScope(WorkerThreadType::DedicatedWorker, params, WTFMove(origin), thread, WTFMove(topOrigin), connectionProxy, socketProvider)
    , m_name(params.name)
{
}

DedicatedWorkerGlobalScope::~DedicatedWorkerGlobalScope() = default;

EventTargetInterface DedicatedWorkerGlobalScope::eventTargetInterface() const
{
    return DedicatedWorkerGlobalScopeEventTargetInterfaceType;
}

void DedicatedWorkerGlobalScope::prepareForDestruction()
{
    WorkerGlobalScope::prepareForDestruction();
}

ExceptionOr<void> DedicatedWorkerGlobalScope::postMessage(JSC::JSGlobalObject& state, JSC::JSValue messageValue, StructuredSerializeOptions&& options)
{
    Vector<RefPtr<MessagePort>> ports;
    auto message = SerializedScriptValue::create(state, messageValue, WTFMove(options.transfer), ports, SerializationContext::WorkerPostMessage);
    if (message.hasException())
        return message.releaseException();

    // Disentangle the port in preparation for sending it to the remote context.
    auto channels = MessagePort::disentanglePorts(WTFMove(ports));
    if (channels.hasException())
        return channels.releaseException();

    thread().workerObjectProxy().postMessageToWorkerObject({ message.releaseReturnValue(), channels.releaseReturnValue() });
    return { };
}

ExceptionOr<void> DedicatedWorkerGlobalScope::importScripts(const Vector<String>& urls)
{
    auto result = Base::importScripts(urls);
    thread().workerObjectProxy().reportPendingActivity(hasPendingActivity());
    return result;
}

DedicatedWorkerThread& DedicatedWorkerGlobalScope::thread()
{
    return static_cast<DedicatedWorkerThread&>(Base::thread());
}

#if ENABLE(OFFSCREEN_CANVAS)
CallbackId DedicatedWorkerGlobalScope::requestAnimationFrame(Ref<RequestAnimationFrameCallback>&& callback)
{
    if (!m_workerAnimationController)
        m_workerAnimationController = WorkerAnimationController::create(*this);
    return m_workerAnimationController->requestAnimationFrame(WTFMove(callback));
}

void DedicatedWorkerGlobalScope::cancelAnimationFrame(CallbackId callbackId)
{
    if (m_workerAnimationController)
        m_workerAnimationController->cancelAnimationFrame(callbackId);
}
#endif

#if ENABLE(WEB_RTC)
RefPtr<RTCRtpScriptTransformer> DedicatedWorkerGlobalScope::createRTCRtpScriptTransformer(MessageWithMessagePorts&& options)
{
    auto transformerOrException = RTCRtpScriptTransformer::create(*this, WTFMove(options));
    if (transformerOrException.hasException())
        return nullptr;
    auto transformer = transformerOrException.releaseReturnValue();
    dispatchEvent(RTCTransformEvent::create(eventNames().rtctransformEvent, transformer.copyRef(), Event::IsTrusted::Yes));
    return transformer;
}
#endif

} // namespace WebCore