Struct MenuBarState 

pub struct MenuBarState {
    pub is_open: bool,
    pub active_menu: usize,
    pub highlighted_item: Option<usize>,
    pub scroll_offset: u16,
    pub focused: bool,
    pub active_submenu: Option<usize>,
    pub submenu_highlighted: Option<usize>,
    pub submenu_scroll_offset: u16,
}

State for a menu bar.

Fields

is_open: bool

Whether any menu is currently open.

active_menu: usize

Index of the currently active/highlighted menu (always set when focused).

highlighted_item: Option<usize>

Currently highlighted item index within the dropdown (if open).

scroll_offset: u16

Scroll offset for long dropdown menus.

focused: bool

Whether the menu bar has focus.

active_submenu: Option<usize>

Index of active submenu item (if any).

submenu_highlighted: Option<usize>

State for active submenu.

submenu_scroll_offset: u16

Submenu scroll offset.

Implementations

impl MenuBarState

pub fn new() -> Self

Create a new menu bar state.

pub fn open_menu(&mut self, index: usize)

Open the menu at the given index.

pub fn close_menu(&mut self)

Close any open menu.

pub fn toggle_menu(&mut self, index: usize)

Toggle the menu at the given index.

pub fn next_menu(&mut self, menu_count: usize)

Move to the next menu in the bar.

pub fn prev_menu(&mut self, menu_count: usize)

Move to the previous menu in the bar.

pub fn next_item(&mut self, items: &[MenuBarItem])

Move highlight to the next item in the dropdown.

pub fn prev_item(&mut self, items: &[MenuBarItem])

Move highlight to the previous item in the dropdown.

pub fn highlight_first(&mut self, items: &[MenuBarItem])

Move to first selectable item.

pub fn highlight_last(&mut self, items: &[MenuBarItem])

Move to last selectable item.

pub fn select_item(&mut self, index: usize)

Select an item by index.

pub fn open_submenu(&mut self)

Open submenu at the highlighted index.

pub fn close_submenu(&mut self)

Close any open submenu.

pub fn has_open_submenu(&self) -> bool

Check if a submenu is open.

pub fn next_submenu_item(&mut self, items: &[MenuBarItem])

Move to next item in submenu.

pub fn prev_submenu_item(&mut self, items: &[MenuBarItem])

Move to previous item in submenu.

pub fn ensure_visible(&mut self, viewport_height: usize)

Ensure highlighted item is visible in viewport.

Trait Implementations

impl Clone for MenuBarState

fn clone(&self) -> MenuBarState

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MenuBarState

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

Formats the value using the given formatter.

impl Default for MenuBarState

fn default() -> Self

Returns the “default value” for a type.