Source/WebCore/bindings/js/JSSharedWorkerCustom.cpp

/*
 * Copyright (C) 2009 Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
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#include "config.h"

#if ENABLE(SHARED_WORKERS)

#include "JSSharedWorker.h"

#include "JSDOMGlobalObject.h"
#include "JSDOMWindowCustom.h"
#include "SharedWorker.h"
#include <runtime/Error.h>

using namespace JSC;

namespace WebCore {

void JSSharedWorker::visitChildren(JSCell* cell, SlotVisitor& visitor)
{
    JSSharedWorker* thisObject = jsCast<JSSharedWorker*>(cell);
    ASSERT_GC_OBJECT_INHERITS(thisObject, &s_info);
    COMPILE_ASSERT(StructureFlags & OverridesVisitChildren, OverridesVisitChildrenWithoutSettingFlag);
    ASSERT(thisObject->structure()->typeInfo().overridesVisitChildren());
    Base::visitChildren(thisObject, visitor);

    if (MessagePort* port = thisObject->impl()->port())
        visitor.addOpaqueRoot(port);
}

EncodedJSValue JSC_HOST_CALL JSSharedWorkerConstructor::constructJSSharedWorker(ExecState* exec)
{
    JSSharedWorkerConstructor* jsConstructor = jsCast<JSSharedWorkerConstructor*>(exec->callee());

    if (exec->argumentCount() < 1)
        return throwVMError(exec, createNotEnoughArgumentsError(exec));

    String scriptURL = exec->argument(0).toString(exec)->value(exec);
    String name;
    if (exec->argumentCount() > 1)
        name = exec->argument(1).toString(exec)->value(exec);

    if (exec->hadException())
        return JSValue::encode(JSValue());

    // FIXME: We need to use both the dynamic scope and the lexical scope (dynamic scope for resolving the worker URL)
    DOMWindow* window = asJSDOMWindow(exec->lexicalGlobalObject())->impl();
    ExceptionCode ec = 0;
    RefPtr<SharedWorker> worker = SharedWorker::create(window->document(), scriptURL, name, ec);
    if (ec) {
        setDOMException(exec, ec);
        return JSValue::encode(JSValue());
    }

    return JSValue::encode(asObject(toJS(exec, jsConstructor->globalObject(), worker.release())));
}

} // namespace WebCore

#endif // ENABLE(SHARED_WORKERS)