arabica/include/DOM/Events/EventTarget.hpp

116 lines
3.8 KiB
C++

#ifndef JEZUK_EVENTS_EVENTTARGET_H
#define JEZUK_EVENTS_EVENTTARGET_H
////////////////////////////
// C++ DOM definition
//
// $Id$
////////////////////////////
#include <DOM/Proxy.hpp>
#include <Arabica/StringAdaptor.hpp>
namespace Arabica
{
namespace DOM
{
namespace Events
{
template<class stringT, class string_adaptorT> class Event;
template<class stringT, class string_adaptorT> class EventListener;
template<class stringT, class string_adaptorT> class EventTarget_impl;
template<class stringT, class string_adaptorT = Arabica::default_string_adaptor<stringT> >
class EventTarget : protected Arabica::DOM::Proxy<EventTarget_impl<stringT, string_adaptorT> >
{
public:
typedef EventTarget_impl<stringT, string_adaptorT> EventTarget_implT;
typedef Event<stringT, string_adaptorT> EventT;
typedef EventListener<stringT, string_adaptorT> EventListenerT;
typedef DOM::Proxy<EventTarget_implT> proxy_t;
EventTarget() : proxy_t(0) { }
EventTarget(EventTarget_implT* const impl) : proxy_t(impl) { }
EventTarget(const EventTarget& rhs) : proxy_t(rhs) { }
explicit EventTarget(const DOM::Node<stringT, string_adaptorT>& rhs) : proxy_t(dynamic_cast<EventTarget_implT*>(rhs.underlying_impl()))
{
if(dynamic_cast<EventTarget_implT*>(rhs.underlying_impl()) == 0)
throw DOM::DOMException(DOM::DOMException::NOT_SUPPORTED_ERR);
}
virtual ~EventTarget() { }
bool operator==(const EventTarget& rhs) const { return proxy_t::operator==(rhs); }
bool operator!=(const EventTarget& rhs) const { return proxy_t::operator!=(rhs); }
bool operator==(int dummy) const { return proxy_t::operator==(dummy); }
bool operator!=(int dummy) const { return proxy_t::operator!=(dummy); }
EventTarget& operator=(const EventTarget& rhs)
{
proxy_t::operator=(rhs);
return *this;
} // operator=
#if 0
DOM::Node<stringT> asNode() {
return DOM::Node<stringT>(dynamic_cast<Node_impl<stringT, string_adaptorT>*>(proxy_t::operator*()));
}
#endif
///////////////////////////////////////////////////////////////
// EventTarget methods
void addEventListener(const stringT type,
EventListenerT& listener,
bool useCapture)
{
Impl()->addEventListener(type, listener, useCapture);
} // addEventListener
void removeEventListener(const stringT type,
EventListenerT& listener,
bool useCapture)
{
Impl()->removeEventListener(type, listener, useCapture);
} // removeEventListener
bool dispatchEvent(EventT& event)
{
return Impl()->dispatchEvent(event);
} // dispatchEvent
// private:
EventTarget_implT* Impl() const { return dynamic_cast<EventTarget_implT*>(proxy_t::operator*()); }
}; // class EventTarget
//////////////////////////////////////////////////////////////////////
// Event_impl
template<class stringT, class string_adaptorT>
class EventTarget_impl
{
public:
typedef Event<stringT, string_adaptorT> EventT;
typedef EventListener<stringT, string_adaptorT> EventListenerT;
///////////////////////////////////////////////////////
// Ref counting
virtual void addRef() = 0;
virtual void releaseRef() = 0;
///////////////////////////////////////////////////////////////
// EventTarget methods
virtual void addEventListener(const stringT type,
EventListenerT& listener,
bool useCapture) = 0;
virtual void removeEventListener(const stringT type,
EventListenerT& listener,
bool useCapture) = 0;
virtual bool dispatchEvent(EventT& event) = 0;
}; // class EventTarget_impl
} // namespace Events
} // namespace DOM
} // namespace Arabica
#endif