Struct MenuBarUi 

pub struct MenuBarUi<'u> { /* private fields */ }

The handle passed to a MenuBar::show closure for declaring menu triggers. Each call to MenuBarUi::menu paints one trigger and its dropdown.

Implementations

impl<'u> MenuBarUi<'u>

pub fn menu<R>( &mut self, label: impl Into<WidgetText>, body: impl FnOnce(&mut Ui) -> R, ) -> Option<R>

Paint a single menu trigger with label and attach a dropdown populated by body. Clicking an item inside the dropdown dismisses the menu — the standard pattern for action-style menus (File / Edit / etc.). For settings-style menus that should stay open while the user toggles items, use MenuBarUi::menu_keep_open.

Returns Some with the body closure’s return value while the dropdown is open, None while it’s closed.

pub fn menu_keep_open<R>( &mut self, label: impl Into<WidgetText>, body: impl FnOnce(&mut Ui) -> R, ) -> Option<R>

Like MenuBarUi::menu, but the dropdown stays open while the user clicks items inside it. Useful for menus full of toggles (checkboxes, radio groups) where the user expects to see the state change without the menu vanishing. The menu still closes on click outside, on Esc, or when the user clicks the trigger again.

Trait Implementations

impl<'u> Debug for MenuBarUi<'u>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.