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 
impl()49         WorkerContext* impl() const { return m_impl.get(); }
50         virtual ScriptExecutionContext* scriptExecutionContext() const;
51 
createStructure(JSC::JSGlobalData & globalData,JSC::JSValue prototype)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