1 /* 2 * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved. 3 * Copyright (C) 2007 Eric Seidel <eric@webkit.org> 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef JSCallbackObject_h 28 #define JSCallbackObject_h 29 30 #include "JSObjectRef.h" 31 #include "JSValueRef.h" 32 #include "JSObject.h" 33 34 namespace JSC { 35 36 template <class Base> 37 class JSCallbackObject : public Base { 38 public: 39 JSCallbackObject(ExecState*, NonNullPassRefPtr<Structure>, JSClassRef, void* data); 40 JSCallbackObject(JSClassRef); 41 virtual ~JSCallbackObject(); 42 43 void setPrivate(void* data); 44 void* getPrivate(); 45 46 static const ClassInfo info; 47 classRef()48 JSClassRef classRef() const { return m_callbackObjectData->jsClass; } 49 bool inherits(JSClassRef) const; 50 createStructure(JSValue proto)51 static PassRefPtr<Structure> createStructure(JSValue proto) 52 { 53 return Structure::create(proto, TypeInfo(ObjectType, StructureFlags), Base::AnonymousSlotCount); 54 } 55 56 protected: 57 static const unsigned StructureFlags = OverridesGetOwnPropertySlot | ImplementsHasInstance | OverridesHasInstance | OverridesMarkChildren | OverridesGetPropertyNames | Base::StructureFlags; 58 59 private: 60 virtual UString className() const; 61 62 virtual bool getOwnPropertySlot(ExecState*, const Identifier&, PropertySlot&); 63 virtual bool getOwnPropertySlot(ExecState*, unsigned, PropertySlot&); 64 virtual bool getOwnPropertyDescriptor(ExecState*, const Identifier&, PropertyDescriptor&); 65 66 virtual void put(ExecState*, const Identifier&, JSValue, PutPropertySlot&); 67 68 virtual bool deleteProperty(ExecState*, const Identifier&); 69 virtual bool deleteProperty(ExecState*, unsigned); 70 71 virtual bool hasInstance(ExecState* exec, JSValue value, JSValue proto); 72 73 virtual void getOwnPropertyNames(ExecState*, PropertyNameArray&, EnumerationMode mode = ExcludeDontEnumProperties); 74 75 virtual double toNumber(ExecState*) const; 76 virtual UString toString(ExecState*) const; 77 78 virtual ConstructType getConstructData(ConstructData&); 79 virtual CallType getCallData(CallData&); classInfo()80 virtual const ClassInfo* classInfo() const { return &info; } 81 82 void init(ExecState*); 83 84 static JSCallbackObject* asCallbackObject(JSValue); 85 86 static JSValue JSC_HOST_CALL call(ExecState*, JSObject* functionObject, JSValue thisValue, const ArgList&); 87 static JSObject* construct(ExecState*, JSObject* constructor, const ArgList&); 88 89 static JSValue staticValueGetter(ExecState*, const Identifier&, const PropertySlot&); 90 static JSValue staticFunctionGetter(ExecState*, const Identifier&, const PropertySlot&); 91 static JSValue callbackGetter(ExecState*, const Identifier&, const PropertySlot&); 92 93 struct JSCallbackObjectData { JSCallbackObjectDataJSCallbackObjectData94 JSCallbackObjectData(void* privateData, JSClassRef jsClass) 95 : privateData(privateData) 96 , jsClass(jsClass) 97 { 98 JSClassRetain(jsClass); 99 } 100 ~JSCallbackObjectDataJSCallbackObjectData101 ~JSCallbackObjectData() 102 { 103 JSClassRelease(jsClass); 104 } 105 106 void* privateData; 107 JSClassRef jsClass; 108 }; 109 110 OwnPtr<JSCallbackObjectData> m_callbackObjectData; 111 }; 112 113 } // namespace JSC 114 115 // include the actual template class implementation 116 #include "JSCallbackObjectFunctions.h" 117 118 #endif // JSCallbackObject_h 119