Merge branch 'master' into inputHandlingRework

TODO

@@ -1,7 +1,6 @@
 ToDos in Priority order:
   
 - Known Bugs  
-  sometimes the screen is spoken from the beginning without need to
   gstreamer sounddriver doesnt work
 
 - try to consume shortcuts

src/fenrir-package/commands/onScreenChanged/65000-char_delete_echo.py

@@ -30,7 +30,9 @@ class command():
         # No deletion 
         if environment['screenData']['newNegativeDelta'] == '':
             return environment
-
+        # too much for a single backspace...
+        if len(environment['screenData']['newNegativeDelta']) >= 5:
+            return environment           
         environment['runtime']['outputManager'].presentText(environment, environment['screenData']['newNegativeDelta'], interrupt=True)
         return environment
     def setCallback(self, callback):

src/fenrir-package/screen/linux.py

@@ -73,10 +73,10 @@ class screen():
             environment['screenData']['oldCursor']['x'] = 0
             environment['screenData']['oldCursor']['y'] = 0
             environment['screenData']['oldDelta'] = ''
-            environment['screenData']['newDelta'] = ''
             environment['screenData']['oldNegativeDelta'] = ''
-            environment['screenData']['newNegativeDelta'] = ''
-        
+        # always clear current deltas
+        environment['screenData']['newNegativeDelta'] = ''
+        environment['screenData']['newDelta'] = ''                   
         # changes on the screen
         if (environment['screenData']['oldContentText'] != environment['screenData']['newContentText']) and \
           (environment['screenData']['newContentText'] != '' ):
@@ -99,7 +99,6 @@ class screen():
 
                 environment['screenData']['newDelta'] = ''.join(x[2:] for x in diffList if x.startswith('+ '))             
                 environment['screenData']['newNegativeDelta'] = ''.join(x[2:] for x in diffList if x.startswith('- '))
-        else:
-            environment['screenData']['newNegativeDelta'] = ''
-            environment['screenData']['newDelta'] = ''           
+
         return environment
+