reduce possebilitys for typos

src/core/snore.cpp

@@ -191,37 +191,28 @@ bool SnoreCore::setPrimaryNotificationBackend ( const QString &backend )
 
 bool SnoreCore::setPrimaryNotificationBackend()
 {
-    QStringList backends = notificationBackends();
+    Q_D(SnoreCore);
 #ifdef Q_OS_WIN
-    if(QSysInfo::windowsVersion() == QSysInfo::WV_WINDOWS8 && backends.contains("Windows 8"))
+    if(QSysInfo::windowsVersion() == QSysInfo::WV_WINDOWS8 && d->setBackendIfAvailible("Windows 8"))
     {
-        if(setPrimaryNotificationBackend("Windows 8"))
-            return true;
+        return true;
     }
-    if( backends.contains("Growl"))
+    if(d->setBackendIfAvailible("Growl"))
     {
-        if(setPrimaryNotificationBackend("Growl"))
-            return true;
+        return true;
     }
-    if( backends.contains("Snarl"))
+    if(d->setBackendIfAvailible("Snarl"))
     {
-        if(setPrimaryNotificationBackend("Snarl"))
-            return true;
+        return true;
     }
 #elif defined(Q_OS_LINUX)
-    if( backends.contains("FreedesktopNotification"))
-    {
-        return setPrimaryNotificationBackend("FreedesktopNotification");
-    }
+        return d->setBackendIfAvailible("FreedesktopNotification");
 #elif defined(Q_OS_MAC)
-    if( backends.contains("Growl"))
-    {
-        return setPrimaryNotificationBackend("Growl");
-    }
+        return d->setBackendIfAvailible("Growl");
 #endif
-    if( trayIcon() && backends.contains("SystemTray"))
+    if( trayIcon() && d->setBackendIfAvailible("SystemTray"))
     {
-        return setPrimaryNotificationBackend("SystemTray");
+        return true;
     }
     return false;
 }

src/core/snore_p.cpp

@@ -77,6 +77,16 @@ void SnoreCorePrivate::notificationActionInvoked(Notification notification) cons
     }
 }
 
+bool SnoreCorePrivate::setBackendIfAvailible(const QString &backend)
+{
+    Q_Q(SnoreCore);
+    if( q->primaryNotificationBackend().contains(backend))
+    {
+        return q->setPrimaryNotificationBackend(backend);
+    }
+    return false;
+}
+
 void SnoreCorePrivate::slotNotificationClosed(Notification n)
 {
     Q_Q(SnoreCore);

src/core/snore_p.h

@@ -50,6 +50,8 @@ public:
 
     void notificationActionInvoked(Notification notification) const;
 
+    bool setBackendIfAvailible(const QString & backend);
+
 signals:
     void applicationRegistered(const Snore::Application&);
     void applicationDeregistered(const Snore::Application&);