text: /*
   * This source file is part of libRocket, the HTML/CSS Interface Middleware
   *
   * For the latest information, see http://www.librocket.com
   *
   * Copyright (c) 2008-2010 CodePoint Ltd, Shift Technology Ltd
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   * 
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   * THE SOFTWARE.
   *
   */
  
  #include "precompiled.h"
  #include "../../../Include/Rocket/Core/Event.h"
  #include "../../../Include/Rocket/Core/Python/Utilities.h"
  #include "EventWrapper.h"
  #include "EventInstancer.h"
  
  namespace Rocket {
  namespace Core {
  namespace Python {
  
  EventInstancer::EventInstancer(PyObject* _instancer)
  {
  	instancer = _instancer;
  	Py_INCREF( _instancer );
  }
  
  EventInstancer::~EventInstancer()
  {
  	Py_DECREF( instancer );
  }
  
  Event* EventInstancer::InstanceEvent(Element* target, const Rocket::Core::String& name, const Rocket::Core::Dictionary& parameters, bool interruptable)
  {
  	EventWrapper* event = NULL;
  
  	try
  	{	
  		// Convert parameters to a python representation
  		python::object params(parameters);
  
  		// Increase reference count on required args
  		Py_INCREF(params.ptr());
  
  		// Put the arguments into a tuple
  		PyObject* args = PyTuple_New(3);
  		PyTuple_SetItem(args, 0, PyUnicode_FromString(name.CString()));
  		PyTuple_SetItem(args, 1, params.ptr());
  		PyTuple_SetItem(args, 2, PyBool_FromLong(interruptable));
  	
  		// Instance
  		PyObject* instance = PyObject_CallObject(instancer, args);
  		Py_DECREF(args);
  
  		// Rebind the target element
  		if (instance)
  		{
  			event = python::extract<EventWrapper*>(Rocket::Core::Python::Utilities::MakeObject(instance));
  			if (event)
  			{
  				event->SetTargetElement(target);
  			}
  		}
  	}
  	catch (python::error_already_set&)
  	{		
  		event = NULL;
  	}
  
  	if (!event)
  	{
  		Rocket::Core::Python::Utilities::PrintError(true);
  	}
  
  	return event;
  }
  
  // Releases an event instanced by this instancer.
  void EventInstancer::ReleaseEvent(Event* event)
  {
  	EventWrapper* event_wrapper = dynamic_cast< EventWrapper* >(event);
  	if (event_wrapper != NULL)
  	{
  		// Little bit of footwork so that the destructors security check passes
  		PyObject* _self = event_wrapper->self;
  		event_wrapper->self = NULL;
  		Py_DECREF( _self );
  	}
  }
  
  void EventInstancer::Release()
  {
  	delete this;
  }
  
  }
  }
  }
  