Hello everyone,
Let’s look at the following example. There is a MenuItem item that has a
keyboard accelerator. Accordingly, the action of this MenuItem can be
triggered in two cases:
1. when the Menu is shown and the user clicks or presses Enter on that
menu item
2. when the Menu is NOT shown, and the action is triggered when the user
presses a key combination and the accelerator is fired
It’s all very simple and straightforward. The problem arises when you
need to perform a certain validation before the action of this item is
executed. I asked an AI — it said to use menu.setOnShowing(...) to check
whether the MenuItem should be disabled or not. However, this approach
only works for case 1. So how should validation be handled for case 2?
And here it becomes obvious that code duplication should be avoided,
because there can be many MenuItems, and duplicating logic for each one
or creating special methods for each case looks quite messy and poorly
designed.
Maybe someone from the JavaFX developers can clarify how this is
actually intended to work?
Best regards, Pavel
