Trait FocusNode 

pub trait FocusNode: ModifierNode {
    // Required method
    fn focus_state(&self) -> FocusState;

    // Provided method
    fn on_focus_changed(
        &mut self,
        _context: &mut dyn ModifierNodeContext,
        _state: FocusState,
    ) { ... }
}

Marker trait for focus modifier nodes.

Focus nodes participate in focus management. They can request focus, track focus state, and participate in focus traversal.

Required Methods

fn focus_state(&self) -> FocusState

Returns the current focus state of this node.

Provided Methods

fn on_focus_changed( &mut self, _context: &mut dyn ModifierNodeContext, _state: FocusState, )

Called when focus state changes for this node.

Implementors