Trait gtk4::prelude::EventControllerExt

pub trait EventControllerExt: 'static {
    fn current_event(&self) -> Option<Event>;
    fn current_event_device(&self) -> Option<Device>;
    fn current_event_state(&self) -> ModifierType;
    fn current_event_time(&self) -> u32;
    fn name(&self) -> Option<GString>;
    fn propagation_limit(&self) -> PropagationLimit;
    fn propagation_phase(&self) -> PropagationPhase;
    fn widget(&self) -> Option<Widget>;
    fn reset(&self);
    fn set_name(&self, name: &str);
    fn set_propagation_limit(&self, limit: PropagationLimit);
    fn set_propagation_phase(&self, phase: PropagationPhase);
    fn connect_name_notify<F: Fn(&Self) + 'static>(
        &self, 
        f: F
    ) -> SignalHandlerId;
    fn connect_propagation_limit_notify<F: Fn(&Self) + 'static>(
        &self, 
        f: F
    ) -> SignalHandlerId;
    fn connect_propagation_phase_notify<F: Fn(&Self) + 'static>(
        &self, 
        f: F
    ) -> SignalHandlerId;
    fn connect_widget_notify<F: Fn(&Self) + 'static>(
        &self, 
        f: F
    ) -> SignalHandlerId;
}

Trait containing all EventController methods.

Implementors

DropControllerMotion, DropTargetAsync, DropTarget, EventControllerFocus, EventControllerKey, EventControllerLegacy, EventControllerMotion, EventControllerScroll, EventController, Gesture, PadController, ShortcutController

Required methods

fn current_event(&self) -> Option<Event>

Returns the event that is currently being handled by the controller.

At other times, None is returned.

Returns

the event that is currently handled by self

fn current_event_device(&self) -> Option<Device>

Returns the device of the event that is currently being handled by the controller.

At other times, None is returned.

Returns

device of the event is currently handled by self

fn current_event_state(&self) -> ModifierType

Returns the modifier state of the event that is currently being handled by the controller.

At other times, 0 is returned.

Returns

modifier state of the event is currently handled by self

fn current_event_time(&self) -> u32

Returns the timestamp of the event that is currently being handled by the controller.

At other times, 0 is returned.

Returns

timestamp of the event is currently handled by self

fn name(&self) -> Option<GString>

Gets the name of self.

fn propagation_limit(&self) -> PropagationLimit

Gets the propagation limit of the event controller.

Returns

the propagation limit

fn propagation_phase(&self) -> PropagationPhase

Gets the propagation phase at which self handles events.

Returns

the propagation phase

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

Returns the Widget this controller relates to.

Returns

a Widget

fn reset(&self)

Resets the self to a clean state.

fn set_name(&self, name: &str)

Sets a name on the controller that can be used for debugging.

name

a name for self

fn set_propagation_limit(&self, limit: PropagationLimit)

Sets the event propagation limit on the event controller.

If the limit is set to PropagationLimit::SameNative, the controller won’t handle events that are targeted at widgets on a different surface, such as popovers.

limit

the propagation limit

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.

phase

a propagation phase

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

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

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

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

Implementors

impl<O: IsA<EventController>> EventControllerExt for O