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
34namespace JSC {
35
36template <class Base>
37class JSCallbackObject : public Base {
38public:
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
48    JSClassRef classRef() const { return m_callbackObjectData->jsClass; }
49    bool inherits(JSClassRef) const;
50
51    static PassRefPtr<Structure> createStructure(JSValue proto)
52    {
53        return Structure::create(proto, TypeInfo(ObjectType, StructureFlags), Base::AnonymousSlotCount);
54    }
55
56protected:
57    static const unsigned StructureFlags = OverridesGetOwnPropertySlot | ImplementsHasInstance | OverridesHasInstance | OverridesMarkChildren | OverridesGetPropertyNames | Base::StructureFlags;
58
59private:
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&);
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 {
94        JSCallbackObjectData(void* privateData, JSClassRef jsClass)
95            : privateData(privateData)
96            , jsClass(jsClass)
97        {
98            JSClassRetain(jsClass);
99        }
100
101        ~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