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      1 /*
      2  * Copyright (C) 2004, 2008 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 #ifndef KJS_BINDINGS_OBJC_RUNTIME_H
     27 #define KJS_BINDINGS_OBJC_RUNTIME_H
     28 
     29 #include "BridgeJSC.h"
     30 #include "objc_header.h"
     31 #include <runtime/JSGlobalObject.h>
     32 #include <runtime/JSObjectWithGlobalObject.h>
     33 #include <wtf/RetainPtr.h>
     34 
     35 namespace JSC {
     36 namespace Bindings {
     37 
     38 ClassStructPtr webScriptObjectClass();
     39 ClassStructPtr webUndefinedClass();
     40 
     41 class ObjcInstance;
     42 
     43 class ObjcField : public Field {
     44 public:
     45     ObjcField(IvarStructPtr);
     46     ObjcField(CFStringRef name);
     47 
     48     virtual JSValue valueFromInstance(ExecState*, const Instance*) const;
     49     virtual void setValueToInstance(ExecState*, const Instance*, JSValue) const;
     50 
     51 private:
     52     IvarStructPtr _ivar;
     53     RetainPtr<CFStringRef> _name;
     54 };
     55 
     56 class ObjcMethod : public Method {
     57 public:
     58     ObjcMethod() : _objcClass(0), _selector(0), _javaScriptName(0) {}
     59     ObjcMethod(ClassStructPtr aClass, SEL _selector);
     60 
     61     virtual int numParameters() const;
     62 
     63     NSMethodSignature *getMethodSignature() const;
     64 
     65     bool isFallbackMethod() const { return _selector == @selector(invokeUndefinedMethodFromWebScript:withArguments:); }
     66     void setJavaScriptName(CFStringRef n) { _javaScriptName = n; }
     67     CFStringRef javaScriptName() const { return _javaScriptName.get(); }
     68 
     69     SEL selector() const { return _selector; }
     70 
     71 private:
     72     ClassStructPtr _objcClass;
     73     SEL _selector;
     74     RetainPtr<CFStringRef> _javaScriptName;
     75 };
     76 
     77 class ObjcArray : public Array {
     78 public:
     79     ObjcArray(ObjectStructPtr, PassRefPtr<RootObject>);
     80 
     81     virtual void setValueAt(ExecState *exec, unsigned int index, JSValue aValue) const;
     82     virtual JSValue valueAt(ExecState *exec, unsigned int index) const;
     83     virtual unsigned int getLength() const;
     84 
     85     ObjectStructPtr getObjcArray() const { return _array.get(); }
     86 
     87     static JSValue convertObjcArrayToArray(ExecState *exec, ObjectStructPtr anObject);
     88 
     89 private:
     90     RetainPtr<ObjectStructPtr> _array;
     91 };
     92 
     93 class ObjcFallbackObjectImp : public JSObjectWithGlobalObject {
     94 public:
     95     ObjcFallbackObjectImp(ExecState*, JSGlobalObject*, ObjcInstance*, const Identifier& propertyName);
     96 
     97     static const ClassInfo s_info;
     98 
     99     const Identifier& propertyName() const { return _item; }
    100 
    101     static ObjectPrototype* createPrototype(ExecState*, JSGlobalObject* globalObject)
    102     {
    103         return globalObject->objectPrototype();
    104     }
    105 
    106     static Structure* createStructure(JSGlobalData& globalData, JSValue prototype)
    107     {
    108         return Structure::create(globalData, prototype, TypeInfo(ObjectType, StructureFlags), AnonymousSlotCount, &s_info);
    109     }
    110 
    111 private:
    112     static const unsigned StructureFlags = OverridesGetOwnPropertySlot | JSObject::StructureFlags;
    113     virtual bool getOwnPropertySlot(ExecState*, const Identifier&, PropertySlot&);
    114     virtual bool getOwnPropertyDescriptor(ExecState*, const Identifier&, PropertyDescriptor&);
    115     virtual void put(ExecState*, const Identifier& propertyName, JSValue, PutPropertySlot&);
    116     virtual CallType getCallData(CallData&);
    117     virtual bool deleteProperty(ExecState*, const Identifier& propertyName);
    118     virtual JSValue defaultValue(ExecState*, PreferredPrimitiveType) const;
    119 
    120     virtual bool toBoolean(ExecState*) const;
    121 
    122     RefPtr<ObjcInstance> _instance;
    123     Identifier _item;
    124 };
    125 
    126 } // namespace Bindings
    127 } // namespace JSC
    128 
    129 #endif
    130