lib/vedeu/interface/interface.rb in vedeu-0.0.9 vs lib/vedeu/interface/interface.rb in vedeu-0.0.10

@@ -2,22 +2,23 @@
   class NotImplementedError < StandardError; end
 
   class Interface
     def initialize(options = {})
       @options = options
+      @output  = []
     end
 
     def initial_state
       raise NotImplementedError, 'Subclasses implement this method.'
     end
 
     def input
-      evaluate
+      raise Collapse if evaluate == :stop
     end
 
-    def output(command)
-      Compositor.arrange(command, self)
+    def output
+      write
     end
 
     def geometry
       @geometry ||= Geometry.new(options[:geometry])
     end
@@ -25,14 +26,18 @@
     private
 
     attr_reader :options
 
     def evaluate
-      Commands.execute(read)
+      @output = Commands.execute(read)
     end
 
     def read
       Terminal.input
+    end
+
+    def write
+      Compositor.arrange(@output, self)
     end
 
     def options
       defaults.merge!(@options)
     end