Fix mouse emulation in fullscreen mode in linux. The window doesn't have focus then.

Also minor tweak to mouse hiding.


git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5063 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Plugins/Plugin_GCPad/Src/GCPad.cpp

@@ -660,7 +660,9 @@ bool IsFocus()
 	Window FocusWin;
 	int Revert;
 	XGetInputFocus(GCdisplay, &FocusWin, &Revert);
-	return (GLWin != 0 && GLWin == FocusWin);
+	XWindowAttributes WinAttribs;
+	XGetWindowAttributes (GCdisplay, GLWin, &WinAttribs);
+	return (GLWin != 0 && (GLWin == FocusWin || WinAttribs.override_redirect));
 #else
 	return true;
 #endif