A menu item whose textual label and whose enablement are updatable. The wordingProvider provides the current wording, upon being being sent the wordingSelector.

The item can also dynamically update whether or not it should be enabled; to do this, give it an enablementSelector, which is also sent to the wordingProvider..

	object fileIn

	stepping
	arrangeToStartSteppingIn: step stepTime

	wording
	wordingArgument: wordingProvider:wordingSelector:

	world
	adaptToWorld: updateContents

	enablement	top
	enablement
	enablementSelector:

object fileIn

top

	stepping	top
	arrangeToStartSteppingIn: Start getting sent the 'step' message in aWorld. Like startSteppingIn:, but without the initial one to get started'
	step Do some periodic activity. Use startStepping/stopStepping to start and stop getting sent this message. The time between steps is specified by this morph's answer to the stepTime message. The generic version dispatches control to the player, if any. The nasty circumlocation about owner's transformation is necessitated by the flexing problem that the player remains in the properties dictionary both of the flex and the real morph. In the current architecture, only the top renderer's pointer to the player should actually be honored for the purpose of firing.
	stepTime Answer the desired time between steps in milliseconds. This default implementation requests that the 'step' method be called once every second.

	wording	top
	wordingArgument: Set the receiver's wordingArgument as indicated
	wordingProvider:wordingSelector:

	world	top
	adaptToWorld: The receiver finds itself operating in a possibly-different new world. If any of the receiver's parts are world-dependent (such as a target of a SimpleButtonMorph, etc.), then have them adapt accordingly
	updateContents Update the receiver's contents