Fixed Sankore-7 issue

src/board/UBLibraryController.cpp

@@ -83,6 +83,11 @@ UBLibraryController::UBLibraryController(QWidget *pParentWidget, UBBoardControll
 
 }
 
+bool UBLibraryController::canItemsOnElementBeDeleted(UBLibElement *pElement)
+{
+    return !pElement->path().toLocalFile().startsWith(UBSettings::settings()->uniboardShapeLibraryDirectory());
+}
+
 void UBLibraryController::createInternalWidgetItems()
 {
     QStringList toolUris = UBToolsManager::manager()->allToolIDs();

src/board/UBLibraryController.h

@@ -109,6 +109,7 @@ class UBLibraryController : public QObject
         QString favoritePath();
 
         void createNewFolder(QString name, UBLibElement* parentElem);
+        bool canItemsOnElementBeDeleted(UBLibElement *pElement);
 
     signals:
         void dialogClosed(int state);

src/gui/UBLibActionBar.cpp

@@ -337,7 +337,7 @@ void UBLibActionBar::onSelectionChanged(QList<UBLibElement *> itemList, bool isI
 
     mpFavoriteAction->setEnabled(bEnable);
     mpSocialAction->setEnabled(bEnable);
-    mpDeleteAction->setEnabled(bEnable);
+    mpDeleteAction->setEnabled(bEnable && libraryController()->canItemsOnElementBeDeleted(itemList.at(0)));
 }
 
 /**