History for ControllerCode

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<pre>

import ModelDeleted
import Event
import Callback

class Controller:
    """Write"""

    def __init__(self, aModel):
	"""Construct the instance"""

        self.__model = aModel

        eventList = [Event.Event(ModelDeleted.ModelDeleted(), 
                                 self.Callback(self.modelDeleted))]
        eventList.extend(self.registerEvents())

        for anEvent in eventList:
            self.__model.addViewEvent(self, anEvent)

        return

    def __del__(self):
	"""Destroy the instance"""

##        print "View.__del__"
        self.finished()
        return

    def finished(self):
        """Manually break the loops."""
        
	if self.__model:
	    self.__model.removeView(self)

        self.__model = None
        return
        
    def registerEvents(self):
        """Register the events that this view is interested in."""
        
        return []

    def modelDeleted(self, aReason):
	"""Method that is invoked when the model is deleted."""

	self.__model = None
        return

    def getModel(self):
        """Return the model."""
        
        return self.__model

    class Callback(Callback.Callback):
        """Nested class to handle callbacks."""

	def __init__(self, callback):
            """Construct the instance."""
            
	    self.__callback = callback
            return
	    
	def execute(self, aReason):
            """Evecute the callaback."""
            
	    self.__callback(aReason)
            return

</pre>
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