Is there any way to disconnect event handlers?

[eeeeeta]

From what I can see, the only things the API exposes to do with event handlers currently are the connect_ methods on gtk::WidgetExt - is there a way to disconnect event handlers?

The reason I ask is the following: when calling destroy() on a widget, GTK fires the focus-out event for the widget - which interrupts my program's flow and ends up borrowing a Rc<RefCell<T>> that is currently in use, because it's part of the code calling destroy(). Is there any remedy for this situation, for example blocking signal handlers for a brief period?

[GuillaumeGomez]

@Susurrus is adding it it seems. Take a look here.

[eeeeeta]

@GuillaumeGomez Ah, I see. Great! I've subscribed to that issue, so I'll close this one.

[gkoz]

There is an unsafe way (g_signal_handler_disconnect) but we haven't made it available as a safe one.

Ideally RefCell::try_borrow would make this unnecessary but it doesn't exist yet. Also note that if you can use Cell instead it doesn't have such a limitation.

Consider also WidgetExt::in_destruction.

[eeeeeta]

@gkoz I implemented a workaround with RefCell::borrow_state (subscribed to that issue for updates on stability) - sadly in_destruction doesn't seem to work for me :( How would one go about getting the IDs to pass to g_signal_handler_disconnect?

[gkoz]

The connect_ methods return the handler ids.