text: /**
   * Appcelerator Titanium License
   * This source code and all modifications done by Appcelerator
   * are licensed under the Apache Public License (version 2) and
   * are Copyright (c) 2009-2012 by Appcelerator, Inc.
   */
  
  /*
   * Copyright (C) 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
   * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
   * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
   * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
   * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
   */
  
  #ifndef TiCallbackObject_h
  #define TiCallbackObject_h
  
  #include "TiObjectRef.h"
  #include "TiValueRef.h"
  #include "TiObject.h"
  #include <wtf/PassOwnPtr.h>
  
  namespace TI {
  
  struct TiCallbackObjectData : WeakHandleOwner {
      TiCallbackObjectData(void* privateData, TiClassRef jsClass)
          : privateData(privateData)
          , jsClass(jsClass)
      {
          TiClassRetain(jsClass);
      }
      
      ~TiCallbackObjectData()
      {
          TiClassRelease(jsClass);
      }
      
      TiValue getPrivateProperty(const Identifier& propertyName) const
      {
          if (!m_privateProperties)
              return TiValue();
          return m_privateProperties->getPrivateProperty(propertyName);
      }
      
      void setPrivateProperty(TiGlobalData& globalData, TiCell* owner, const Identifier& propertyName, TiValue value)
      {
          if (!m_privateProperties)
              m_privateProperties = adoptPtr(new JSPrivatePropertyMap);
          m_privateProperties->setPrivateProperty(globalData, owner, propertyName, value);
      }
      
      void deletePrivateProperty(const Identifier& propertyName)
      {
          if (!m_privateProperties)
              return;
          m_privateProperties->deletePrivateProperty(propertyName);
      }
  
      void visitChildren(SlotVisitor& visitor)
      {
          if (!m_privateProperties)
              return;
          m_privateProperties->visitChildren(visitor);
      }
  
      void* privateData;
      TiClassRef jsClass;
      struct JSPrivatePropertyMap {
          TiValue getPrivateProperty(const Identifier& propertyName) const
          {
              PrivatePropertyMap::const_iterator location = m_propertyMap.find(propertyName.impl());
              if (location == m_propertyMap.end())
                  return TiValue();
              return location->second.get();
          }
          
          void setPrivateProperty(TiGlobalData& globalData, TiCell* owner, const Identifier& propertyName, TiValue value)
          {
              WriteBarrier<Unknown> empty;
              m_propertyMap.add(propertyName.impl(), empty).first->second.set(globalData, owner, value);
          }
          
          void deletePrivateProperty(const Identifier& propertyName)
          {
              m_propertyMap.remove(propertyName.impl());
          }
  
          void visitChildren(SlotVisitor& visitor)
          {
              for (PrivatePropertyMap::iterator ptr = m_propertyMap.begin(); ptr != m_propertyMap.end(); ++ptr) {
                  if (ptr->second)
                      visitor.append(&ptr->second);
              }
          }
  
      private:
          typedef HashMap<RefPtr<StringImpl>, WriteBarrier<Unknown>, IdentifierRepHash> PrivatePropertyMap;
          PrivatePropertyMap m_propertyMap;
      };
      OwnPtr<JSPrivatePropertyMap> m_privateProperties;
      virtual void finalize(Handle<Unknown>, void*);
  };
  
      
  template <class Base>
  class TiCallbackObject : public Base {
  public:
      TiCallbackObject(TiExcState*, TiGlobalObject*, Structure*, TiClassRef, void* data);
      TiCallbackObject(TiGlobalData&, TiClassRef, Structure*);
  
      void setPrivate(void* data);
      void* getPrivate();
  
      static const ClassInfo s_info;
  
      TiClassRef classRef() const { return m_callbackObjectData->jsClass; }
      bool inherits(TiClassRef) const;
  
      static Structure* createStructure(TiGlobalData& globalData, TiValue proto) 
      { 
          return Structure::create(globalData, proto, TypeInfo(ObjectType, StructureFlags), Base::AnonymousSlotCount, &s_info); 
      }
      
      TiValue getPrivateProperty(const Identifier& propertyName) const
      {
          return m_callbackObjectData->getPrivateProperty(propertyName);
      }
      
      void setPrivateProperty(TiGlobalData& globalData, const Identifier& propertyName, TiValue value)
      {
          m_callbackObjectData->setPrivateProperty(globalData, this, propertyName, value);
      }
      
      void deletePrivateProperty(const Identifier& propertyName)
      {
          m_callbackObjectData->deletePrivateProperty(propertyName);
      }
  
  protected:
      static const unsigned StructureFlags = ProhibitsPropertyCaching | OverridesGetOwnPropertySlot | ImplementsHasInstance | OverridesHasInstance | OverridesVisitChildren | OverridesGetPropertyNames | Base::StructureFlags;
  
  private:
      virtual UString className() const;
  
      virtual bool getOwnPropertySlot(TiExcState*, const Identifier&, PropertySlot&);
      virtual bool getOwnPropertyDescriptor(TiExcState*, const Identifier&, PropertyDescriptor&);
      
      virtual void put(TiExcState*, const Identifier&, TiValue, PutPropertySlot&);
  
      virtual bool deleteProperty(TiExcState*, const Identifier&);
      virtual bool deleteProperty(TiExcState*, unsigned);
  
      virtual bool hasInstance(TiExcState* exec, TiValue value, TiValue proto);
  
      virtual void getOwnPropertyNames(TiExcState*, PropertyNameArray&, EnumerationMode mode = ExcludeDontEnumProperties);
  
      virtual double toNumber(TiExcState*) const;
      virtual UString toString(TiExcState*) const;
  
      virtual ConstructType getConstructData(ConstructData&);
      virtual CallType getCallData(CallData&);
  
      virtual void visitChildren(SlotVisitor& visitor)
      {
          Base::visitChildren(visitor);
          m_callbackObjectData->visitChildren(visitor);
      }
  
      void init(TiExcState*);
   
      static TiCallbackObject* asCallbackObject(TiValue);
   
      static EncodedTiValue JSC_HOST_CALL call(TiExcState*);
      static EncodedTiValue JSC_HOST_CALL construct(TiExcState*);
     
      TiValue getStaticValue(TiExcState*, const Identifier&);
      static TiValue staticFunctionGetter(TiExcState*, TiValue, const Identifier&);
      static TiValue callbackGetter(TiExcState*, TiValue, const Identifier&);
  
      OwnPtr<TiCallbackObjectData> m_callbackObjectData;
  };
  
  } // namespace TI
  
  // include the actual template class implementation
  #include "TiCallbackObjectFunctions.h"
  
  #endif // TiCallbackObject_h
  