/*

 * Copyright (C) 2008 Apple Inc. All Rights Reserved.

 *

 * 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 JSDOMGlobalObject_h

#define JSDOMGlobalObject_h

#include <runtime/JSGlobalObject.h>

namespace WebCore {

    class Document;

    class Event;

    class DOMWrapperWorld;

    class JSLazyEventListener;

    class JSEventListener;

    class ScriptExecutionContext;

    typedef HashMap<const JSC::ClassInfo*, RefPtr<JSC::Structure> > JSDOMStructureMap;

    typedef HashMap<const JSC::ClassInfo*, JSC::JSObject*> JSDOMConstructorMap;

    class JSDOMGlobalObject : public JSC::JSGlobalObject {

        typedef JSC::JSGlobalObject Base;

    protected:

        struct JSDOMGlobalObjectData;

        JSDOMGlobalObject(NonNullPassRefPtr<JSC::Structure>, JSDOMGlobalObjectData*, JSC::JSObject* thisValue);

    public:

        JSDOMStructureMap& structures() { return d()->structures; }

        JSDOMConstructorMap& constructors() const { return d()->constructors; }

        virtual ScriptExecutionContext* scriptExecutionContext() const = 0;

        // Make binding code generation easier.

        JSDOMGlobalObject* globalObject() { return this; }

        void setCurrentEvent(Event*);

        Event* currentEvent() const;

        void setInjectedScript(JSObject*);

        JSObject* injectedScript() const;

        virtual void markChildren(JSC::MarkStack&);

#if COMPILER(WINSCW)

        DOMWrapperWorld* world() { return d()->m_world; }

#else

        DOMWrapperWorld* world() { return d()->m_world.get(); }

#endif

        virtual const JSC::ClassInfo* classInfo() const { return &s_info; }

        static const JSC::ClassInfo s_info;

    private:

        static void destroyJSDOMGlobalObjectData(void*);

    protected:

        struct JSDOMGlobalObjectData : public JSC::JSGlobalObject::JSGlobalObjectData {

            JSDOMGlobalObjectData(DOMWrapperWorld* world, Destructor destructor = destroyJSDOMGlobalObjectData)

                : JSGlobalObjectData(destructor)

                , evt(0)

                , m_world(world)

                , m_injectedScript(0)

            {

            }

            JSDOMStructureMap structures;

            JSDOMConstructorMap constructors;

            Event* evt;

#if COMPILER(WINSCW)

            DOMWrapperWorld* m_world;

#else

            RefPtr<DOMWrapperWorld> m_world;

#endif

            JSObject* m_injectedScript;

        };

//    private:

//        static void destroyJSDOMGlobalObjectData(void*);

        JSDOMGlobalObjectData* d() const { return static_cast<JSDOMGlobalObjectData*>(JSC::JSVariableObject::d); }

    };

    template<class ConstructorClass>

    inline JSC::JSObject* getDOMConstructor(JSC::ExecState* exec, const JSDOMGlobalObject* globalObject)

    {

        if (JSC::JSObject* constructor = globalObject->constructors().get(&ConstructorClass::s_info))

            return constructor;

        JSC::JSObject* constructor = new (exec) ConstructorClass(exec, const_cast<JSDOMGlobalObject*>(globalObject));

        ASSERT(!globalObject->constructors().contains(&ConstructorClass::s_info));

        globalObject->constructors().set(&ConstructorClass::s_info, constructor);

        return constructor;

    }

    JSDOMGlobalObject* toJSDOMGlobalObject(Document*, JSC::ExecState*);

    JSDOMGlobalObject* toJSDOMGlobalObject(ScriptExecutionContext*, JSC::ExecState*);

    JSDOMGlobalObject* toJSDOMGlobalObject(Document*, DOMWrapperWorld*);

    JSDOMGlobalObject* toJSDOMGlobalObject(ScriptExecutionContext*, DOMWrapperWorld*);

} // namespace WebCore

#endif // JSDOMGlobalObject_h