add last_incomming and improve other commands

config/keyboard/desktop.conf

@@ -1,5 +1,5 @@
 1-KEY_KP0=fenrirKey
-1-KEY_LEFTCTRL=shut_up
+#1-KEY_LEFTCTRL=shut_up
 1-KEY_RIGHTCTRL=shut_up
 1-KEY_KP8=curr_line
 1-KEY_KP7=prev_line
@@ -12,6 +12,7 @@
 1-KEY_KP3=next_char
 1-KEY_KPDOT=exit_review
 #=curr_screen
+#=last_incomming
 1-KEY_KP0,1-KEY_F2=toggle_braille
 1-KEY_KP0,1-KEY_F3=toggle_sound
 1-KEY_KP0,1-KEY_F4=toggle_speech

src/fenrir-package/commands/commands/curr_screen.py

@@ -4,7 +4,10 @@ class command():
     def __init__(self):
         pass
     def run(self, environment):
-        environment['runtime']['outputManager'].presentText(environment, environment['screenData']['newContentText'],interrupt=True)
+        if environment['screenData']['newContentText'].strip(" \t\n") == '':
+            environment['runtime']['outputManager'].presentText(environment, "blank", interrupt=True)
+        else:    
+           environment['runtime']['outputManager'].presentText(environment, environment['screenData']['newContentText'],interrupt=True)
         return environment    
     def setCallback(self, callback):
         pass

src/fenrir-package/commands/commands/last_incomming.py

@@ -0,0 +1,15 @@
+#!/bin/python
+
+class command():
+    def __init__(self):
+        pass
+    def run(self, environment):
+        if environment['screenData']['newDelta'].strip(" \t\n") == '':
+            environment['runtime']['outputManager'].presentText(environment, "blank", interrupt=True)
+        else:    
+           environment['runtime']['outputManager'].presentText(environment, environment['screenData']['newDelta'], interrupt=True)
+        return environment    
+    def setCallback(self, callback):
+        pass
+    def shutdown(self):
+        pass