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FocusManager

Struct FocusManager 

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pub struct FocusManager { /* private fields */ }
Expand description

Focus manager for keyboard navigation

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impl FocusManager

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pub fn new() -> Self

Create a new focus manager

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pub fn register(&mut self, id: WidgetId)

Register a widget in the focus order

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pub fn register_with_position(&mut self, id: WidgetId, x: u16, y: u16)

Register a widget with position for 2D navigation

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pub fn register_with_bounds(&mut self, id: WidgetId, bounds: Rect)

Register a widget with bounds for 2D navigation

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pub fn unregister(&mut self, id: WidgetId)

Unregister a widget

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pub fn current(&self) -> Option<WidgetId>

Get the currently focused widget

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pub fn next(&mut self)

Move focus to next widget (Tab)

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pub fn prev(&mut self)

Move focus to previous widget (Shift+Tab)

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pub fn focus(&mut self, id: WidgetId)

Focus a specific widget

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pub fn is_focused(&self, id: WidgetId) -> bool

Check if a widget is focused

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pub fn blur(&mut self)

Clear focus

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pub fn move_focus(&mut self, direction: Direction) -> bool

Move focus in a direction (arrow key navigation)

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pub fn trap_focus(&mut self, container_id: WidgetId)

Start trapping focus within a container

All widgets registered as trapped will be the only ones focusable. Saves current focus for later restoration.

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pub fn trap_focus_with_initial( &mut self, container_id: WidgetId, initial_focus: WidgetId, )

Start trapping focus with initial focus target

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pub fn add_to_trap(&mut self, id: WidgetId)

Add a widget to the trapped focus group

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pub fn release_trap(&mut self)

Release focus trap and optionally restore previous focus

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pub fn release_trap_and_restore(&mut self)

Release focus trap and restore previous focus

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pub fn is_trapped(&self) -> bool

Check if focus is currently trapped

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pub fn trap_container(&self) -> Option<WidgetId>

Get the trap container ID

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pub fn saved_focus(&self) -> Option<WidgetId>

Get the saved focus (for manual restoration)

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pub fn push_trap(&mut self, container_id: WidgetId, children: &[WidgetId])

Push a new focus trap (supports nesting)

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pub fn pop_trap(&mut self) -> bool

Pop and restore the previous focus trap

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pub fn trap_depth(&self) -> usize

Get the trap stack depth

Trait Implementations§

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impl Default for FocusManager

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
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type Error = Infallible

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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.