Struct FocusLost 

pub struct FocusLost;

Listens for when an element or its descendants lose focus.

This event propagates through all three phases (capture, target, bubble), similar to standard DOM events. By default, event listeners using on_event only listen to target and bubble phases.

Filtering by Phase

To only respond when this specific element loses focus (not descendants):

view.on_event_stop(listener::FocusLost, |cx, _| {
    if cx.phase.is_target() {
        // Only this element lost focus
    }
});

Or configure which phases to listen to:

view.on_event_stop_with_config(
    listener::FocusLost,
    EventCallbackConfig { phases: Phases::TARGET },
    |cx, _| {
        // Only fires when this element itself loses focus
    }
);

To listen during capture phase (fires before descendants):

view.on_event_stop_with_config(
    listener::FocusLost,
    EventCallbackConfig { phases: Phases::CAPTURE },
    |cx, _| {
        // Fires before any descendant receives the event
    }
);

Trait Implementations

impl Clone for FocusLost

fn clone(&self) -> FocusLost

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for FocusLost

fn default() -> FocusLost

Returns the “default value” for a type.

impl EventListenerTrait for FocusLost

type EventData = ()

The type of event data this listener extracts

fn listener_key() -> EventListenerKey

fn extract(event: &Event) -> Option<&Self::EventData>

where Self::EventData: Sized,

Extract and downcast to the specific event type

impl Copy for FocusLost