How to enable FileMenu items with a variable?

[vijaychsk]

In my application, I have 3 different items under FileMenu and each item is individually connected with an appropriate action. But the user cannot accidentally open Work1 and Work2 without Dirs already opening. So, the sequence of operations is like Open Dirs (a map will record this dir path), and then the user has a choice whether to open Work1 or Work2 or both or nothing at all.

My idea is to hide Work1 and Work2 at the beginning of the application and automatically reactivate these items as soon as the appropriate action becomes valid to operate (meaning Dirs isn't empty). Everything is in the background and the user doesn't know about it.

The only way that I know the opening Dirs is successful is by checking if the map is empty or not. Is there a better way to handle this situation?

QMenu* fileMenu = _menuBar->addMenu(tr("&File"));

QAction* action = new QAction("Open &Dirs", this);
connect(action, SIGNAL(triggered()), this, SLOT(OnDirOpen()));
filemenu->addAction(action);
fileMenu->addSeparator();

QAction* action = new QAction("Open &Work1", this);
connect(action, SIGNAL(triggered()), this, SLOT(OnWork1Open()));
filemenu->addAction(action);
fileMenu->addSeparator();

QAction* action = new QAction("Open &Work2", this);
connect(action, SIGNAL(triggered()), this, SLOT(OnWork2Open()));
filemenu->addAction(action);

[jsulm]

@vijaychsk said in How to enable FileMenu items with a variable?:

The only way that I know the opening Dirs is successful is by checking if the map is empty or not

Not sure what map you mean, but you also can disable menus/actions and enable them when needed. So, in OnDirOpen() you can enable the other two actions if loading succeeds.