Adding ESC key press action.

src/message/__init__.py

@@ -1,4 +1,4 @@
-from message.simple_messages import NoReset, Reset, ModalNotOkClose, ClickMessage, DataChgClickMessage
+from message.simple_messages import NoReset, Reset, ModalNotOkClose, ClickMessage, DataChgClickMessage, KeyboardPress
 from message.translation_edit import EditTranslation, MoveRight, MoveLeft, BinTranslation
 from message.show_messages import ShowEntryLabelsEdit, ShowEditTranslation, ShowSenseLabelEdit, ShowSenseDefinitionEdit, ShowCommentEdit, ShowAddTranslation, ShowExampleEdit, ShowExampleTranslationEdit, ShowVariantsEdit
 from message.simple_edits import EditSenseLabel, EditSenseDefinition, EditComment, AddSenseLabel, AddSense, EditExample, AddExampleTranslation, EditExampleTranslation, DoChosenExamples, AddToLabelList, AddToGenericList, EditVariants, EditEntryLabels

src/message/message.py

@@ -33,6 +33,9 @@ class Message:
     
     def reset(self):
         return True
+    
+    def clear_args(self):
+        self._args = []
         
 
 def msg(message, params):

src/message/simple_messages.py

@@ -26,6 +26,18 @@ class Reset(ClickMessage):
 class NoReset(Reset):
     def reset(self):
         return False
+    
+    
+class KeyboardPress(Message):
+    def on_event(self, event):
+        self.add_arg(event.key)
+    
+    def reset(self):
+        key = self.get_arg(0, str)
+        return key == "Escape"
+    
+    def update_model(self, model):
+        pass
 
 
 # a "hack" message for reseting modals #

src/update.py

@@ -26,6 +26,7 @@ class Update:
         # do update
         for msg in self.message_queue:
             msg.update_model(self.model)
+            msg.clear_args()
             
         if reset:
             self.model.post_reset()

src/view/view.py

@@ -12,6 +12,9 @@ class View:
         self.vdom = h('div', {}, "Loading...")
         self.model = None
         patch(container, self.vdom)
+        
+        # this does not work on parent div, so attaching to document here
+        document.addEventListener("keyup", msg(KeyboardPress()))
     
     def view(self, model):
         self.model = model