clean ups

openlp/core/ui/maindisplay.py

@@ -271,9 +271,6 @@ class MainDisplay(QtGui.QGraphicsView):
         else:
             js = u'show_image("");'
         self.frame.evaluateJavaScript(js)
-        # Update the preview frame.
-        if self.isLive:
-            Receiver.send_message(u'maindisplay_active')
 
     def resetImage(self):
         """
@@ -287,10 +284,6 @@ class MainDisplay(QtGui.QGraphicsView):
             self.displayImage(None)
         # clear the cache
         self.override = {}
-        # Update the preview frame.
-        if self.isLive:
-            self._parent.updatePreview()
-            Receiver.send_message(u'maindisplay_active')
 
     def resetVideo(self):
         """
@@ -306,9 +299,6 @@ class MainDisplay(QtGui.QGraphicsView):
         else:
             self.frame.evaluateJavaScript(u'show_video("close");')
         self.override = {}
-        # Update the preview frame.
-        if self.isLive:
-            Receiver.send_message(u'maindisplay_active')
 
     def videoPlay(self):
         """
@@ -388,9 +378,6 @@ class MainDisplay(QtGui.QGraphicsView):
             self.webView.setVisible(False)
             self.videoWidget.setVisible(True)
             self.audio.setVolume(vol)
-        # Update the preview frame.
-        if self.isLive:
-            Receiver.send_message(u'maindisplay_active')
 
     def videoState(self, newState, oldState):
         """

openlp/plugins/alerts/lib/alertsmanager.py

@@ -81,7 +81,7 @@ class AlertsManager(QtCore.QObject):
         Format and request the Alert and start the timer
         """
         log.debug(u'Generate Alert called')
-        if len(self.alertList) == 0:
+        if not self.alertList:
             return
         text = self.alertList.pop(0)
         alertTab = self.parent().settings_tab