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      1 /*
      2  * Copyright (C) 2009 Google 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 are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 
     33 #if ENABLE(SHARED_WORKERS)
     34 
     35 #include "JSSharedWorker.h"
     36 
     37 #include "JSDOMGlobalObject.h"
     38 #include "JSDOMWindowCustom.h"
     39 #include "SharedWorker.h"
     40 #include <runtime/Error.h>
     41 
     42 using namespace JSC;
     43 
     44 namespace WebCore {
     45 
     46 void JSSharedWorker::markChildren(MarkStack& markStack)
     47 {
     48     Base::markChildren(markStack);
     49 
     50     if (MessagePort* port = impl()->port())
     51         markDOMObjectWrapper(markStack, *Heap::heap(this)->globalData(), port);
     52 }
     53 
     54 EncodedJSValue JSC_HOST_CALL JSSharedWorkerConstructor::constructJSSharedWorker(ExecState* exec)
     55 {
     56     JSSharedWorkerConstructor* jsConstructor = static_cast<JSSharedWorkerConstructor*>(exec->callee());
     57 
     58     if (exec->argumentCount() < 1)
     59         return throwVMError(exec, createSyntaxError(exec, "Not enough arguments"));
     60 
     61     UString scriptURL = exec->argument(0).toString(exec);
     62     UString name;
     63     if (exec->argumentCount() > 1)
     64         name = exec->argument(1).toString(exec);
     65 
     66     if (exec->hadException())
     67         return JSValue::encode(JSValue());
     68 
     69     // FIXME: We need to use both the dynamic scope and the lexical scope (dynamic scope for resolving the worker URL)
     70     DOMWindow* window = asJSDOMWindow(exec->lexicalGlobalObject())->impl();
     71     ExceptionCode ec = 0;
     72     RefPtr<SharedWorker> worker = SharedWorker::create(ustringToString(scriptURL), ustringToString(name), window->document(), ec);
     73     if (ec) {
     74         setDOMException(exec, ec);
     75         return JSValue::encode(JSValue());
     76     }
     77 
     78     return JSValue::encode(asObject(toJS(exec, jsConstructor->globalObject(), worker.release())));
     79 }
     80 
     81 } // namespace WebCore
     82 
     83 #endif // ENABLE(SHARED_WORKERS)
     84