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      1 /*
      2  * Copyright (C) 2008, 2009 Apple Inc. All Rights Reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 
     28 #if ENABLE(WORKERS)
     29 
     30 #include "JSWorker.h"
     31 
     32 #include "JSDOMGlobalObject.h"
     33 #include "JSMessagePortCustom.h"
     34 #include "Worker.h"
     35 #include "JSDOMWindowCustom.h"
     36 #include <runtime/Error.h>
     37 
     38 using namespace JSC;
     39 
     40 namespace WebCore {
     41 
     42 JSC::JSValue JSWorker::postMessage(JSC::ExecState* exec)
     43 {
     44     return handlePostMessage(exec, impl());
     45 }
     46 
     47 EncodedJSValue JSC_HOST_CALL JSWorkerConstructor::constructJSWorker(ExecState* exec)
     48 {
     49     JSWorkerConstructor* jsConstructor = static_cast<JSWorkerConstructor*>(exec->callee());
     50 
     51     if (!exec->argumentCount())
     52         return throwVMError(exec, createSyntaxError(exec, "Not enough arguments"));
     53 
     54     UString scriptURL = exec->argument(0).toString(exec);
     55     if (exec->hadException())
     56         return JSValue::encode(JSValue());
     57 
     58     // See section 4.8.2 step 14 of WebWorkers for why this is the lexicalGlobalObject.
     59     DOMWindow* window = asJSDOMWindow(exec->lexicalGlobalObject())->impl();
     60 
     61     ExceptionCode ec = 0;
     62     RefPtr<Worker> worker = Worker::create(ustringToString(scriptURL), window->document(), ec);
     63     if (ec) {
     64         setDOMException(exec, ec);
     65         return JSValue::encode(JSValue());
     66     }
     67 
     68     return JSValue::encode(asObject(toJS(exec, jsConstructor->globalObject(), worker.release())));
     69 }
     70 
     71 } // namespace WebCore
     72 
     73 #endif // ENABLE(WORKERS)
     74