Tutorius v1: Adding stub for Executor

1 files changed, 54 insertions, 1 deletions

diff --git a/src/sugar/tutorius/tutorial.py b/src/sugar/tutorius/tutorial.py
index fc1d8ae..8c457ae 100644
--- a/src/sugar/tutorius/tutorial.py
+++ b/src/sugar/tutorius/tutorial.py
@@ -160,6 +160,40 @@ class Tutorial (object):
                     continue
         
 
+###############################################################################
+#
+# Object oriented model for the FSM
+#
+
+class Action:
+    """Represents an action to take when entering a state. An action might be
+    show a dialog to the user, or to play a sound.
+    
+    The do() executes the interaction, while the undo() must clean up
+    everything. """
+    def __init__(self):
+        self.name = "Default Action"
+    
+    def do(self):
+        logging.debug("Doing default action")
+        
+    def undo(self):
+        logging.debug("Undoing default action")
+
+class DialogAction(Action):
+    """This is a pop-up dialog that displays a short text to the user."""
+    def __init__(self, label, posX, posY):
+        self.name = "Dialog Action"
+        self.label = label 
+        self.pos = [posX, posY]
+    
+    def do(self):
+        self.dialog = TutoriusDialog(label)
+        self.dialog.move(self.pos[0], self,pos[1])
+    
+    def undo(self):
+        self.dialog.destroy()
+
 class State:
     """This is a step in a tutorial. The state represents a collection of 
     actions to undertake when entering the state, and a description of an
@@ -223,4 +257,23 @@ class FiniteStateMachine(State):
             act.undo
     
     def verify(self):
-        return self.current_state.verify()
\ No newline at end of file
+        return self.current_state.verify()
+    
+
+class Executor:
+    """This is a class that executes a tutorial graph, meaning that it handles
+    the creation and deletion of states, as well as handling the transitions 
+    between the various states."""
+    
+    def __init__(self):
+        self.current_state = None
+        
+    
+    def start(self, fsm):
+        if self.current_state == None:
+            self.current_state = fsm
+            
+            self.current_state.install_handlers()
+            self.current_state.setup()
+        
+    
\ No newline at end of file