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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 COMPUTER, 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 COMPUTER, 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 
     27 #ifndef JSWorkerContextBase_h
     28 #define JSWorkerContextBase_h
     29 
     30 #if ENABLE(WORKERS)
     31 
     32 #include "JSDOMGlobalObject.h"
     33 
     34 namespace WebCore {
     35 
     36     class JSDedicatedWorkerContext;
     37     class JSSharedWorkerContext;
     38     class JSWorkerContext;
     39     class WorkerContext;
     40 
     41     class JSWorkerContextBase : public JSDOMGlobalObject {
     42         typedef JSDOMGlobalObject Base;
     43     public:
     44         JSWorkerContextBase(JSC::JSGlobalData&, JSC::Structure*, PassRefPtr<WorkerContext>);
     45         virtual ~JSWorkerContextBase();
     46 
     47         static const JSC::ClassInfo s_info;
     48 
     49         WorkerContext* impl() const { return m_impl.get(); }
     50         virtual ScriptExecutionContext* scriptExecutionContext() const;
     51 
     52         static JSC::Structure* createStructure(JSC::JSGlobalData& globalData, JSC::JSValue prototype)
     53         {
     54             return JSC::Structure::create(globalData, prototype, JSC::TypeInfo(JSC::ObjectType, StructureFlags), AnonymousSlotCount, &s_info);
     55         }
     56 
     57     private:
     58         RefPtr<WorkerContext> m_impl;
     59     };
     60 
     61     // Returns a JSWorkerContext or jsNull()
     62     // Always ignores the execState and passed globalObject, WorkerContext is itself a globalObject and will always use its own prototype chain.
     63     JSC::JSValue toJS(JSC::ExecState*, JSDOMGlobalObject*, WorkerContext*);
     64     JSC::JSValue toJS(JSC::ExecState*, WorkerContext*);
     65 
     66     JSDedicatedWorkerContext* toJSDedicatedWorkerContext(JSC::JSValue);
     67     JSWorkerContext* toJSWorkerContext(JSC::JSValue);
     68 
     69 #if ENABLE(SHARED_WORKERS)
     70     JSSharedWorkerContext* toJSSharedWorkerContext(JSC::JSValue);
     71 #endif
     72 
     73 } // namespace WebCore
     74 
     75 #endif // ENABLE(WORKERS)
     76 
     77 #endif // JSWorkerContextBase_h
     78