respect grap keyboard setting

src/fenrir-package/core/inputManager.py

@@ -70,7 +70,10 @@ class inputManager():
             self.env['runtime']['inputDriver'].grabDevices()
 
     def releaseDevices(self):
-        self.env['runtime']['inputDriver'].releaseDevices()
+        try:
+            self.env['runtime']['inputDriver'].releaseDevices()
+        except:
+            pass
 
     def convertEventName(self, eventName):
         if not eventName:
@@ -110,8 +113,9 @@ class inputManager():
           
     def writeEventBuffer(self):
         try:
-            self.env['runtime']['inputDriver'].writeEventBuffer()
-            time.sleep(0.0005)
+            if self.env['runtime']['settingsManager'].getSettingAsBool('keyboard', 'grabDevices'):
+                self.env['runtime']['inputDriver'].writeEventBuffer()
+            time.sleep(0.005)
             self.clearEventBuffer()
         except Exception as e:
             print(e)

src/fenrir-package/fenrir.py

@@ -41,7 +41,6 @@ class fenrir():
             self.prepareCommand()
             if not (self.wasCommand or self.environment['runtime']['inputManager'].isFenrirKeyPressed() or self.environment['generalInformation']['tutorialMode']) or  self.environment['runtime']['screenManager'].isSuspendingScreen():
                 self.environment['runtime']['inputManager'].writeEventBuffer()
-                time.sleep(0.005)
             if self.environment['runtime']['inputManager'].noKeyPressed():
                 if self.wasCommand:
                         self.wasCommand = False   

src/fenrir-package/inputDriver/evdev.py

@@ -25,6 +25,10 @@ class driver():
     def shutdown(self):
         pass
     def getInputEvent(self):
+        if not self.iDevices:
+            return None
+        if self.iDevices == {}:
+            return None
         event = None
         r, w, x = select(self.iDevices, [], [], self.env['runtime']['settingsManager'].getSettingAsFloat('screen', 'screenUpdateDelay'))
         if r != []:
@@ -42,14 +46,13 @@ class driver():
     def writeEventBuffer(self):
         for iDevice, uDevice, event in self.env['input']['eventBuffer']:
             self.writeUInput(uDevice, event)
-            uDevice.syn()
 
     def clearEventBuffer(self):
         del self.env['input']['eventBuffer'][:]
                         
     def writeUInput(self, uDevice, event):
         uDevice.write_event(event)
-  
+        uDevice.syn()  
     def getInputDevices(self):
         # 3 pos absolute
         # 2 pos relative