indexing

	description: "Undo button";
	status: "See notice at end of class";
	date: "$Date$";
	revision: "$Revision$"

class

	HISTORY_UNDO 

inherit

	COMMAND

feature -- Basic operations

	execute (argument: ANY) is
			-- Undo the current command.
		local
			history: HISTORY_L_W
		do
			history ?= argument;
			if (history.history_list /= Void) and then (not history.history_list.before) then
				history.history_list.back
			end
		end

end -- class HISTORY_REDO

--|----------------------------------------------------------------
--| EiffelVision: library of reusable components for ISE Eiffel.
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