feat(extensions): most of the extensions implementation, by kdb424

kmk/extensions/__init__.py

@@ -8,35 +8,44 @@ class Extension:
     def enable(self, keyboard):
         self._enabled = True
 
-        self.on_runtime_enable(self, keyboard)
+        self.on_runtime_enable(keyboard)
 
     def disable(self, keyboard):
         self._enabled = False
 
-        self.on_runtime_disable(self, keyboard)
+        self.on_runtime_disable(keyboard)
 
     # The below methods should be implemented by subclasses
 
     def on_runtime_enable(self, keyboard):
-        pass
+        raise NotImplementedError
 
     def on_runtime_disable(self, keyboard):
-        pass
+        raise NotImplementedError
 
     def during_bootup(self, keyboard):
-        pass
+        raise NotImplementedError
 
     def before_matrix_scan(self, keyboard):
         '''
         Return value will be injected as an extra matrix update
         '''
-        pass
+        raise NotImplementedError
 
-    def after_matrix_scan(self, keyboard, matrix_update):
-        pass
+    def after_matrix_scan(self, keyboard):
+        '''
+        Return value will be replace matrix update if supplied
+        '''
+        raise NotImplementedError
 
     def before_hid_send(self, keyboard):
-        pass
+        raise NotImplementedError
 
     def after_hid_send(self, keyboard):
-        pass
+        raise NotImplementedError
+
+    def on_powersave_enable(self, keyboard):
+        raise NotImplementedError
+
+    def on_powersave_disable(self, keyboard):
+        raise NotImplementedError