Struct FocusManager

pub struct FocusManager { /* private fields */ }

Stores the single keyboard-focus owner for one input router.

This type does not validate whether the ID exists or is focusable; routing code is responsible for clearing stale IDs and dispatching focus events.

Examples

use ailloli_ui_core::ElementId;
use ailloli_ui_runtime::input::FocusManager;
let mut focus = FocusManager::default();
focus.set_focused(Some(ElementId(7)));
assert_eq!(focus.focused(), Some(ElementId(7)));

Implementations

impl FocusManager

Provides the operations defined for FocusManager.

pub fn focused(&self) -> Option<ElementId>

Returns the current focus owner, or None when nothing is focused.

Examples

use ailloli_ui_runtime::input::FocusManager;
assert_eq!(FocusManager::default().focused(), None);

pub fn set_focused(&mut self, id: Option<ElementId>)

Replaces the focus owner without dispatching events or invalidating paint.

Passing None clears focus. Unknown IDs are stored unchanged.

Examples

use ailloli_ui_core::ElementId;
use ailloli_ui_runtime::input::FocusManager;
let mut focus = FocusManager::default();
focus.set_focused(Some(ElementId(2)));
focus.set_focused(None);
assert_eq!(focus.focused(), None);

Trait Implementations

impl Clone for FocusManager

fn clone(&self) -> FocusManager

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for FocusManager

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

Formats the value using the given formatter.

impl Default for FocusManager

fn default() -> FocusManager

Returns the “default value” for a type.