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

@@ -34,6 +34,9 @@ class Message:
     def reset(self):
         return True
     
+    def clear_args(self):
+        self._args = []
+        
 
 def msg(message, params):
     if not issubclass(type(message), Message):

src/message/simple_messages.py

@@ -28,6 +28,18 @@ class NoReset(Reset):
         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 #
 # everytime a modal closes, run 100ms later model.modal = [] 
 # this is done to achieve nice close animation

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

@@ -13,6 +13,9 @@ class View:
         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
         new_vdom = self._view()