fix vcsa

src/fenrirscreenreader/core/attributeManager.py

@@ -61,6 +61,7 @@ class attributeManager():
     def setAttributes(self, currAttributes):
         self.prevAttributes = self.currAttributes
         self.currAttributes = currAttributes.copy()
+
     def getAttributeByXY(self, x, y):
         if not self.currAttributes:
             return None

src/fenrirscreenreader/screenDriver/vcsaDriver.py

@@ -212,9 +212,14 @@ class driver(screenDriver):
                 },
             'screen': screen,
             'screenUpdateTime': time.time(),
+            'text': '',
+            'attributes': [],
         }
-        eventData['text'], eventData['attributes'] =\
-          self.autoDecodeVCSA(vcsaContent[4:], eventData['lines'], eventData['columns'])
+        try:
+            eventData['text'], eventData['attributes'] =\
+              self.autoDecodeVCSA(vcsaContent[4:], eventData['lines'], eventData['columns'])
+        except:
+            pass
         # VCSU seems to give b'   ' instead of b'\x00\x00\x00' (tsp), deactivated until its fixed
         if vcsuContent != None:
             try: