+ chained dialogues

lib/james.rb

@@ -2,6 +2,7 @@ module James; end
 
 require File.expand_path '../james/timer', __FILE__
 require File.expand_path '../james/visitor', __FILE__
+require File.expand_path '../james/visitors', __FILE__
 require File.expand_path '../james/dialogues', __FILE__
 
 require File.expand_path '../james/dialogue_api', __FILE__

lib/james/controller.rb

@@ -7,14 +7,18 @@
 require File.expand_path '../outputs/audio', __FILE__
 require File.expand_path '../outputs/terminal', __FILE__
 
+require File.expand_path '../builtin/core_dialogue', __FILE__
+
 module James
 
   class Controller
 
     attr_reader :visitor
 
     def initialize
-      @visitor = initialize_dialogues.visitor
+      user_visitor   = initialize_dialogues.visitor
+      system_visitor = Visitor.new CoreDialogue.new.state_for(:awake)
+      @visitor       = Visitors.new system_visitor, user_visitor
     end
 
     def applicationDidFinishLaunching notification
@@ -80,29 +84,31 @@ def hear text
       end
     end
     def expects
-      @visitor.expects
+      possibilities = @visitor.expects
+      puts "Possibilities:\n  #{possibilities.join("\n  ")}"
+      possibilities
     end
 
     def listen
       app = NSApplication.sharedApplication
       app.delegate = self
 
-      # window = NSWindow.alloc.initWithContentRect([200, 300, 300, 100],
+      # window = NSWindow.alloc.initWithContentRect([100, 300, 300, 100],
       #     styleMask:NSTitledWindowMask|NSClosableWindowMask|NSMiniaturizableWindowMask,
       #     backing:NSBackingStoreBuffered,
       #     defer:false)
-      # window.title      = 'MacRuby: The Definitive Guide'
+      # window.title      = 'James Debug/Info'
       # window.level      = 3
       # window.delegate   = app.delegate
+
+      # @button = NSButton.alloc.initWithFrame([10, 10, 400, 10])
+      # @button.bezelStyle = 4
+      # @button.title      = ''
+      # @button.target     = app.delegate
+      # @button.action     = 'say_hello:'
       #
-      # button = NSButton.alloc.initWithFrame([80, 10, 120, 80])
-      # button.bezelStyle = 4
-      # button.title      = 'Hello World!'
-      # button.target     = app.delegate
-      # button.action     = 'say_hello:'
-      #
-      # window.contentView.addSubview(button)
-      #
+      # window.contentView.addSubview(@button)
+
       # window.display
       # window.orderFrontRegardless
 

lib/james/dialogue_internals.rb

@@ -11,7 +11,7 @@ module Dialogue
 
     def self.included into
       into.extend ClassMethods
-      Dialogues << into
+      Dialogues << into unless into == CoreDialogue # TODO Dirty as hell.
     end
 
     #

lib/james/state_api.rb

@@ -58,6 +58,15 @@ def exit &block
       @exit_block = block
     end
 
+    # By default, a state is not chainable.
+    #
+    def chainable?
+      @chainable
+    end
+    def chainable
+      @chainable = true
+    end
+
     # Description of self using name and transitions.
     #
     def to_s

lib/james/visitor.rb

@@ -66,6 +66,15 @@ def hears? phrase
     def expects
       current.phrases
     end
+    # Does the current state allow penetration into another dialogue?
+    #
+    def chainable?
+      current.chainable?
+    end
+
+    def to_s
+      "#{self.class.name}(#{initial}, current: #{current})"
+    end
 
   end
 

lib/james/visitors.rb

@@ -28,23 +28,33 @@ def initialize *visitors
     # After that, all remaining visitors are reset.
     #
     def hear phrase, &block
-      iterator = visitors.each
+      enumerator = visitors.dup
 
-      while visitor = iterator.next
+      while visitor = enumerator.shift
         visitor.hear phrase, &block and break
       end
 
-      while visitor = iterator.next
+      while visitor = enumerator.shift
         visitor.reset
       end
-    rescue StopIteration
-      # That's ok! Nothing to do here.
+    end
+
+    # Enter enters the first dialogue.
+    #
+    def enter
+      visitors.first.enter
     end
 
     # Simply returns the sum of what phrases all dialogues expect.
     #
+    # Stops as soon as a visitor is not in a chainable state anymore.
+    #
     def expects
-      visitors.inject([]) { |expects, visitor| expects + visitor.expects }
+      visitors.inject([]) do |expects, visitor|
+        total = expects + visitor.expects
+        break total unless visitor.chainable?
+        total
+      end
     end
 
   end