Why my simple show / hide does not work

[rcshubhadeep]

I have this simple code (I am new to rust, so sorry if something obvious is missed)

siv.add_layer(LinearLayout::horizontal()
        .child(Button::new("Quit", |s| s.quit()))
        .child(
            HideableView::new(TextArea::new().with_name("editor_inner").full_width()
                .full_height())
        )
);

    siv.clear_global_callbacks(cursive::event::Event::CtrlChar('c'));
    siv.add_global_callback(Event::CtrlChar('c'), |s| {
        s.call_on_name("editor_inner", |view: &mut HideableView<TextArea>| {
            log::trace!("Something serious probably happened!");
            view.set_visible(false);
        });
    });

When I press Ctrl-C nothing happens. Not even the log line. What am I doing wrong?

[rcook]

No idea. But there is an example demonstrating Ctrl+C handling here: https://github.com/gyscos/cursive/blob/main/cursive/examples/ctrl_c.rs. Maybe this will help?

[gyscos]

Hi!

I think the issue is that you attach the name to the TextArea directly, but you query it expecting to find it wrapped in a HideableView.

Also note that full_width and full_height will add their own wrappers. It may be easier to wrap things in this order:

• Base TextArea
• HideableView
• Name
• ResizedView

        .child(
            TextArea::new()
                .wrap_with(HideableView::new) // from cursive::traits::With
                .with_name("editor_inner")
                .full_screen() // Combines both width and height
        )

Then the name will point to the HideableView you expect.

[rcshubhadeep]

Thank you so much! Now I understand it better. Thanks a lot :)