Trait gtk4::prelude::EventControllerExt

pub trait EventControllerExt: 'static {
    // Required methods
    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) -> Widget;
    fn reset(&self);
    fn set_name(&self, name: Option<&str>);
    fn set_propagation_limit(&self, limit: PropagationLimit);
    fn set_propagation_phase(&self, phase: PropagationPhase);
    fn set_static_name(&self, name: Option<&str>);
    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.

Returns

The controller name

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) -> 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: Option<&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 set_static_name(&self, name: Option<&str>)

Available on crate feature v4_8 only.

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

name

a name for @self, must be a static string

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