improve application detection and speed up

src/fenrir-package/core/screenManager.py

@@ -24,9 +24,9 @@ class screenManager():
     def update(self, trigger='onUpdate'):
         self.env['runtime']['screenDriver'].getCurrScreen()    
         if not self.isSuspendingScreen():       
-            if trigger == 'onUpdate' or self.isScreenChange():
-                self.env['runtime']['screenDriver'].getCurrApplication()        
             self.env['runtime']['screenDriver'].update(trigger)
+            if trigger == 'onUpdate' or self.isScreenChange() or len(self.env['screenData']['newDelta']) > 6:
+                self.env['runtime']['screenDriver'].getCurrApplication() 
             self.env['screenData']['lastScreenUpdate'] = time.time()
 
     def isSuspendingScreen(self):

src/fenrir-package/inputDriver/evdev.py

@@ -33,7 +33,10 @@ class driver():
         r, w, x = select(self.iDevices, [], [], self.env['runtime']['settingsManager'].getSettingAsFloat('screen', 'screenUpdateDelay'))
         if r != []:
             for fd in r:
+                while(True):
                     event = self.iDevices[fd].read_one()
+                    if not event:
+                        return None
                     self.env['input']['eventBuffer'].append( [self.iDevices[fd], self.uDevices[fd], event])
                     if event.code != 0:
                         currMapEvent = self.env['runtime']['inputDriver'].mapEvent(event)

src/fenrir-package/screenDriver/linux.py

@@ -71,7 +71,7 @@ class driver():
         return xlist
 
 
-    def update(self, trigger='updateScreen'):
+    def update(self, trigger='onUpdate'):
         newContentBytes = b''       
         try:
             # read screen