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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 "Bridge.h"
     30 #include "objc_header.h"
     31 #include <runtime/JSGlobalObject.h>
     32 #include <wtf/RetainPtr.h>
     33 
     34 namespace JSC {
     35 namespace Bindings {
     36 
     37 ClassStructPtr webScriptObjectClass();
     38 ClassStructPtr webUndefinedClass();
     39 
     40 class ObjcInstance;
     41 
     42 class ObjcField : public Field {
     43 public:
     44     ObjcField(IvarStructPtr);
     45     ObjcField(CFStringRef name);
     46 
     47     virtual JSValue valueFromInstance(ExecState*, const Instance*) const;
     48     virtual void setValueToInstance(ExecState*, const Instance*, JSValue) const;
     49 
     50 private:
     51     IvarStructPtr _ivar;
     52     RetainPtr<CFStringRef> _name;
     53 };
     54 
     55 class ObjcMethod : public Method {
     56 public:
     57     ObjcMethod() : _objcClass(0), _selector(0), _javaScriptName(0) {}
     58     ObjcMethod(ClassStructPtr aClass, SEL _selector);
     59 
     60     virtual int numParameters() const;
     61 
     62     NSMethodSignature *getMethodSignature() const;
     63 
     64     bool isFallbackMethod() const { return _selector == @selector(invokeUndefinedMethodFromWebScript:withArguments:); }
     65     void setJavaScriptName(CFStringRef n) { _javaScriptName = n; }
     66     CFStringRef javaScriptName() const { return _javaScriptName.get(); }
     67 
     68     SEL selector() const { return _selector; }
     69 
     70 private:
     71     ClassStructPtr _objcClass;
     72     SEL _selector;
     73     RetainPtr<CFStringRef> _javaScriptName;
     74 };
     75 
     76 class ObjcArray : public Array {
     77 public:
     78     ObjcArray(ObjectStructPtr, PassRefPtr<RootObject>);
     79 
     80     virtual void setValueAt(ExecState *exec, unsigned int index, JSValue aValue) const;
     81     virtual JSValue valueAt(ExecState *exec, unsigned int index) const;
     82     virtual unsigned int getLength() const;
     83 
     84     ObjectStructPtr getObjcArray() const { return _array.get(); }
     85 
     86     static JSValue convertObjcArrayToArray(ExecState *exec, ObjectStructPtr anObject);
     87 
     88 private:
     89     RetainPtr<ObjectStructPtr> _array;
     90 };
     91 
     92 class ObjcFallbackObjectImp : public JSObject {
     93 public:
     94     ObjcFallbackObjectImp(ExecState*, ObjcInstance*, const Identifier& propertyName);
     95 
     96     static const ClassInfo s_info;
     97 
     98     const Identifier& propertyName() const { return _item; }
     99 
    100     static ObjectPrototype* createPrototype(ExecState*, JSGlobalObject* globalObject)
    101     {
    102         return globalObject->objectPrototype();
    103     }
    104 
    105     static PassRefPtr<Structure> createStructure(JSValue prototype)
    106     {
    107         return Structure::create(prototype, TypeInfo(ObjectType, StructureFlags), AnonymousSlotCount);
    108     }
    109 
    110 private:
    111     static const unsigned StructureFlags = OverridesGetOwnPropertySlot | JSObject::StructureFlags;
    112     virtual bool getOwnPropertySlot(ExecState*, const Identifier&, PropertySlot&);
    113     virtual bool getOwnPropertyDescriptor(ExecState*, const Identifier&, PropertyDescriptor&);
    114     virtual void put(ExecState*, const Identifier& propertyName, JSValue, PutPropertySlot&);
    115     virtual CallType getCallData(CallData&);
    116     virtual bool deleteProperty(ExecState*, const Identifier& propertyName);
    117     virtual JSValue defaultValue(ExecState*, PreferredPrimitiveType) const;
    118 
    119     virtual bool toBoolean(ExecState*) const;
    120 
    121     virtual const ClassInfo* classInfo() const { return &s_info; }
    122 
    123     RefPtr<ObjcInstance> _instance;
    124     Identifier _item;
    125 };
    126 
    127 } // namespace Bindings
    128 } // namespace JSC
    129 
    130 #endif
    131