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      1 /*
      2  * Copyright (C) 2010 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. AND ITS CONTRIBUTORS ``AS IS''
     14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
     17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     23  * THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef NPJSObject_h
     27 #define NPJSObject_h
     28 
     29 #include <JavaScriptCore/Strong.h>
     30 #include <WebCore/npruntime_internal.h>
     31 #include <wtf/Noncopyable.h>
     32 
     33 namespace JSC {
     34 
     35 class JSGlobalData;
     36 class JSGlobalObject;
     37 class JSObject;
     38 
     39 }
     40 
     41 namespace WebKit {
     42 
     43 class NPRuntimeObjectMap;
     44 
     45 // NPJSObject is an NPObject that wraps a JSObject.
     46 class NPJSObject : public NPObject {
     47     WTF_MAKE_NONCOPYABLE(NPJSObject);
     48 public:
     49     static NPJSObject* create(JSC::JSGlobalData&, NPRuntimeObjectMap*, JSC::JSObject*);
     50 
     51     JSC::JSObject* jsObject() const { return m_jsObject.get(); }
     52 
     53     static bool isNPJSObject(NPObject*);
     54 
     55     static NPJSObject* toNPJSObject(NPObject* npObject)
     56     {
     57         ASSERT(isNPJSObject(npObject));
     58         return static_cast<NPJSObject*>(npObject);
     59     }
     60 
     61 private:
     62     NPJSObject();
     63     ~NPJSObject();
     64 
     65     void initialize(JSC::JSGlobalData&, NPRuntimeObjectMap*, JSC::JSObject*);
     66 
     67     bool hasMethod(NPIdentifier methodName);
     68     bool invoke(NPIdentifier methodName, const NPVariant* arguments, uint32_t argumentCount, NPVariant* result);
     69     bool invokeDefault(const NPVariant* arguments, uint32_t argumentCount, NPVariant* result);
     70     bool hasProperty(NPIdentifier propertyName);
     71     bool getProperty(NPIdentifier propertyName, NPVariant* result);
     72     bool setProperty(NPIdentifier propertyName, const NPVariant* value);
     73     bool removeProperty(NPIdentifier propertyName);
     74     bool enumerate(NPIdentifier** identifiers, uint32_t* identifierCount);
     75     bool construct(const NPVariant* arguments, uint32_t argumentCount, NPVariant* result);
     76 
     77     bool invoke(JSC::ExecState*, JSC::JSGlobalObject*, JSC::JSValue function, const NPVariant* arguments, uint32_t argumentCount, NPVariant* result);
     78 
     79     static NPClass* npClass();
     80     static NPObject* NP_Allocate(NPP, NPClass*);
     81     static void NP_Deallocate(NPObject*);
     82     static bool NP_HasMethod(NPObject*, NPIdentifier methodName);
     83     static bool NP_Invoke(NPObject*, NPIdentifier methodName, const NPVariant* arguments, uint32_t argumentCount, NPVariant* result);
     84     static bool NP_InvokeDefault(NPObject*, const NPVariant* arguments, uint32_t argumentCount, NPVariant* result);
     85     static bool NP_HasProperty(NPObject*, NPIdentifier propertyName);
     86     static bool NP_GetProperty(NPObject*, NPIdentifier propertyName, NPVariant* result);
     87     static bool NP_SetProperty(NPObject*, NPIdentifier propertyName, const NPVariant* value);
     88     static bool NP_RemoveProperty(NPObject*, NPIdentifier propertyName);
     89     static bool NP_Enumerate(NPObject*, NPIdentifier** identifiers, uint32_t* identifierCount);
     90     static bool NP_Construct(NPObject*, const NPVariant* arguments, uint32_t argumentCount, NPVariant* result);
     91 
     92     NPRuntimeObjectMap* m_objectMap;
     93     JSC::Strong<JSC::JSObject> m_jsObject;
     94 };
     95 
     96 } // namespace WebKit
     97 
     98 #endif // NPJSObject_h
     99