Struct gtk4::EventController
source · #[repr(transparent)]pub struct EventController { /* private fields */ }Expand description
EventController is the base class for event controllers.
These are ancillary objects associated to widgets, which react
to GdkEvents, and possibly trigger actions as a consequence.
Event controllers are added to a widget with
WidgetExt::add_controller(). It is rarely necessary to
explicitly remove a controller with WidgetExt::remove_controller().
See the chapter on input handling for an overview of the basic concepts, such as the capture and bubble phases of even propagation.
This is an Abstract Base Class, you cannot instantiate it.
Implements
Implementations§
source§impl EventController
impl EventController
pub const NONE: Option<&'static EventController> = None
Trait Implementations§
source§impl Clone for EventController
impl Clone for EventController
source§impl Debug for EventController
impl Debug for EventController
source§impl Display for EventController
impl Display for EventController
source§impl Hash for EventController
impl Hash for EventController
source§impl Ord for EventController
impl Ord for EventController
source§impl ParentClassIs for EventController
impl ParentClassIs for EventController
source§impl<OT: ObjectType> PartialEq<OT> for EventController
impl<OT: ObjectType> PartialEq<OT> for EventController
source§impl<OT: ObjectType> PartialOrd<OT> for EventController
impl<OT: ObjectType> PartialOrd<OT> for EventController
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
This method tests less than or equal to (for
self and other) and is used by the <=
operator. Read moresource§impl StaticType for EventController
impl StaticType for EventController
source§fn static_type() -> Type
fn static_type() -> Type
Returns the type identifier of
Self.impl Eq for EventController
impl IsA<EventController> for DragSource
impl IsA<EventController> for DropControllerMotion
impl IsA<EventController> for DropTarget
impl IsA<EventController> for DropTargetAsync
impl IsA<EventController> for EventControllerFocus
impl IsA<EventController> for EventControllerKey
impl IsA<EventController> for EventControllerLegacy
impl IsA<EventController> for EventControllerMotion
impl IsA<EventController> for EventControllerScroll
impl IsA<EventController> for Gesture
impl IsA<EventController> for GestureClick
impl IsA<EventController> for GestureDrag
impl IsA<EventController> for GestureLongPress
impl IsA<EventController> for GesturePan
impl IsA<EventController> for GestureRotate
impl IsA<EventController> for GestureSingle
impl IsA<EventController> for GestureStylus
impl IsA<EventController> for GestureSwipe
impl IsA<EventController> for GestureZoom
impl IsA<EventController> for PadController
impl IsA<EventController> for ShortcutController
Auto Trait Implementations§
impl RefUnwindSafe for EventController
impl !Send for EventController
impl !Sync for EventController
impl Unpin for EventController
impl UnwindSafe for EventController
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