Fixed: replacing background with video unblank screen even if "Blanked to Theme" and shows content.

Fixes: https://launchpad.net/bugs/1225763

.bzrignore

@@ -2,6 +2,7 @@
 *.*~
 \#*\#
 *.eric4project
+*.eric5project
 *.ropeproject
 *.e4*
 .eric4project

openlp/core/ui/media/mediacontroller.py

@@ -423,10 +423,11 @@ class MediaController(object):
                     controller.volumeSlider.blockSignals(False)
                     return False
                 if status:
-                    display.frame.evaluateJavaScript(u'show_blank("desktop");')
+                    if not controller.media_info.is_background:
+                        display.frame.evaluateJavaScript(u'show_blank("desktop");')
                     self.curDisplayMediaPlayer[display].set_visible(display,
                         True)
-                    if controller.isLive:
+                    if controller.isLive and not controller.media_info.is_background:
                         if controller.hideMenu.defaultAction().isChecked():
                             controller.hideMenu.defaultAction().trigger()
         # Start Timer for ui updates