Struct ContextMenuState 

pub struct ContextMenuState {
    pub is_open: bool,
    pub anchor_position: (u16, u16),
    pub highlighted_index: usize,
    pub scroll_offset: u16,
    pub active_submenu: Option<usize>,
    pub submenu_state: Option<Box<ContextMenuState>>,
}

State for a context menu.

Fields

is_open: bool

Whether the menu is currently open.

anchor_position: (u16, u16)

Anchor position (x, y) where menu appears.

highlighted_index: usize

Currently highlighted item index.

scroll_offset: u16

Scroll offset for long menus.

active_submenu: Option<usize>

Index of active submenu (if any).

submenu_state: Option<Box<ContextMenuState>>

State for active submenu (boxed to avoid infinite size).

Implementations

impl ContextMenuState

pub fn new() -> Self

Create a new context menu state.

pub fn open_at(&mut self, x: u16, y: u16)

Open the menu at the specified position.

pub fn close(&mut self)

Close the menu.

pub fn highlight_prev(&mut self, items: &[ContextMenuItem])

Move highlight to previous selectable item.

pub fn highlight_next(&mut self, items: &[ContextMenuItem])

Move highlight to next selectable item.

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

Move to first selectable item.

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

Move to last selectable item.

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 ensure_visible(&mut self, viewport_height: usize)

Ensure highlighted item is visible in viewport.

Trait Implementations

impl Clone for ContextMenuState

fn clone(&self) -> ContextMenuState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ContextMenuState

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

Formats the value using the given formatter.

impl Default for ContextMenuState

fn default() -> Self

Returns the “default value” for a type.