refs #912, static utility function lastStepSkipped for configuration wizard

src/blackgui/components/configurationwizard.cpp

@@ -50,6 +50,12 @@ namespace BlackGui
             return m_skipped;
         }
 
+        bool CConfigurationWizard::lastWizardStepSkipped(const QWizard *standardWizard)
+        {
+            const CConfigurationWizard *wizard = qobject_cast<const CConfigurationWizard *>(standardWizard);
+            return wizard && wizard->lastStepSkipped();
+        }
+
         void CConfigurationWizard::wizardCurrentIdChanged(int id)
         {
             const int previousId = m_previousId;

src/blackgui/components/configurationwizard.h

@@ -48,6 +48,9 @@ namespace BlackGui
             //! Was the last step skipped?
             bool lastStepSkipped() const;
 
+            //! Static version of CConfigurationWizard::lastStepSkipped
+            static bool lastWizardStepSkipped(const QWizard *standardWizard);
+
         private:
             //! The current page has changed
             void wizardCurrentIdChanged(int id);

src/blackgui/components/copyconfigurationcomponent.cpp

@@ -252,11 +252,7 @@ namespace BlackGui
 
         bool CCopyConfigurationWizardPage::validatePage()
         {
-            CConfigurationWizard *wizard = qobject_cast<CConfigurationWizard *>(this->wizard());
+            if (CConfigurationWizard::lastWizardStepSkipped(this->wizard())) { return true; }
-            Q_ASSERT_X(m_config, Q_FUNC_INFO, "Missing config");
-            Q_ASSERT_X(wizard, Q_FUNC_INFO, "No wizard");
-
-            if (wizard->lastStepSkipped()) { return true; }
             m_config->copySelectedFiles();
             return true;
         }