[−][src]Trait gtk::EventControllerExt

pub trait EventControllerExt: 'static {
    fn get_propagation_phase(&self) -> PropagationPhase;

    fn get_widget(&self) -> Option<Widget>;

    fn handle_event(&self, event: &Event) -> bool;

    fn reset(&self);

    fn set_propagation_phase(&self, phase: PropagationPhase);

    fn connect_property_propagation_phase_notify<F: Fn(&Self) + 'static>(
        &self, 
        f: F
    ) -> SignalHandlerId;
}

Trait containing all EventController methods.

Implementors

EventControllerKey, EventControllerMotion, EventControllerScroll, EventController, Gesture, PadController

Required methods

fn get_propagation_phase(&self) -> PropagationPhase

Gets the propagation phase at which self handles events.

Returns

the propagation phase

fn get_widget(&self) -> Option<Widget>

Returns the Widget this controller relates to.

Returns

a Widget

fn handle_event(&self, event: &Event) -> bool

Feeds an events into self, so it can be interpreted and the controller actions triggered.

event

a GdkEvent

Returns

true if the event was potentially useful to trigger the controller action

fn reset(&self)

Resets the self to a clean state. Every interaction the controller did through EventController::handle-event will be dropped at this point.

fn set_propagation_phase(&self, phase: PropagationPhase)

Sets the propagation phase at which a controller handles events.

If phase is PropagationPhase::None, no automatic event handling will be performed, but other additional gesture maintenance will. In that phase, the events can be managed by calling EventControllerExt::handle_event.

phase

a propagation phase

fn connect_property_propagation_phase_notify<F: Fn(&Self) + 'static>(
    &self,
    f: F
) -> SignalHandlerId

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Implementors

impl<O: IsA<EventController>> EventControllerExt for O[src]

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