Module el 

Structs

AnyDrag

Receives any Event::Drag(...) variant (both source and target events).

AnyDragSource

Receives any Event::Drag(DragEvent::Source(...)) variant.

AnyDragTarget

Receives any Event::Drag(DragEvent::Target(...)) variant.

AnyFileDrag

Receives any Event::FileDrag variant.

AnyFocus

Receives any Event::Focus variant.

AnyIme

Receives any Event::Ime variant.

AnyKey

Receives any Event::Key variant.

AnyPointer

Receives any Event::Pointer variant.

AnyUpdatePhase

Receives any Event::Window(WindowEvent::UpdatePhase) variant.

AnyWindow

Receives any Event::Window variant.

Click

Receives Event::Interaction Click variant — a synthetic click generated from a pointer Down+Up sequence or a keyboard trigger (Space/Enter on the focused element).

DoubleClick

Receives Event::Interaction DoubleClick variant — fired when two rapid pointer clicks occur (pointer up count > 1). Dispatched immediately after the second Click.

DragCancel

Receives DragSourceEvent::Cancel — sent to the element being dragged when the drag is cancelled. Cancellation occurs when:

DragEnd

Receives DragSourceEvent::End — sent to the element being dragged when the pointer is released. other_element is Some(target_id) if released over a drop target, or None if released without a target under the pointer.

DragMove

Receives DragSourceEvent::Move — sent to the element being dragged as the pointer moves during the drag.

DragSourceEnter

Receives DragSourceEvent::Enter — sent to the element being dragged when it enters a potential drop target. other_element identifies the drop target that was entered.

DragSourceLeave

Receives DragSourceEvent::Leave — sent to the element being dragged when it leaves a potential drop target. other_element identifies the drop target that was left.

DragStart

Receives DragSourceEvent::Start — sent to the element being dragged when the drag begins (pointer has moved beyond the drag threshold while a button is held down).

DragTargetDrop

Receives DragTargetEvent::Drop — sent to a drop target when a dragged element is released over it. other_element identifies the element being dragged.

DragTargetEnter

Receives DragTargetEvent::Enter — sent to a drop target when a dragged element enters its bounds. other_element identifies the element being dragged.

DragTargetLeave

Receives DragTargetEvent::Leave — sent to a drop target when a dragged element leaves its bounds. other_element identifies the element being dragged.

DragTargetMove

Receives DragTargetEvent::Move — sent to a drop target as the pointer moves while a dragged element is over it. other_element identifies the element being dragged.

EventKeyInfo

EventListenerKey

Extracted

Receives Event::Extracted. This isn’t useful. Don’t use this.

FileDragDrop

Receives FileDragEvent::Drop — fired when files are dropped onto a view.

FileDragEnter

Receives FileDragEvent::Enter — fired when files being dragged enter a view’s bounds.

FileDragLeave

Receives FileDragEvent::Leave — fired when files being dragged leave a view’s bounds.

FileDragMove

Receives FileDragEvent::Move — fired as files are dragged over a view.

FocusGained

Listens for when an element or its descendants gain focus.

FocusLost

Listens for when an element or its descendants lose focus.

GainedPointerCapture

Receives PointerCaptureEvent::Gained — fired after a view successfully gains pointer capture (following a cx.request_pointer_capture() call in a PointerDown handler).

ImeCommit

Receives Event::Ime Commit variant — fired when IME composition produces final text.

ImeDeleteSurrounding

Receives Event::Ime DeleteSurrounding variant — fired when the IME requests that text surrounding the cursor be deleted (before/after selection).

ImeDisabled

Receives Event::Ime Disabled variant — fired when IME composition ends.

ImeEnabled

Receives Event::Ime Enabled variant — fired when IME composition is activated.

ImePreedit

Receives Event::Ime Preedit variant — fired when the IME composition text updates.

KeyDown

Receives Event::Key with KeyState::Down — fired when a key is pressed.

KeyUp

Receives Event::Key with KeyState::Up — fired when a key is released.

LostPointerCapture

Receives PointerCaptureEvent::Lost — fired when a view loses pointer capture (on PointerUp, PointerCancel, or explicit release).

PinchGesture

Receives Event::Pointer Gesture variant — fired for touchpad pinch/zoom gestures.

PointerCancel

Receives Event::Pointer Cancel variant — fired when a pointer gesture is cancelled by the system (e.g., window loses focus, touch is interrupted).

PointerDown

Receives Event::Pointer Down variant — fired when a pointer button is pressed.

PointerEnter

Receives Event::Pointer Enter variant — fired when the pointer enters a view’s bounds.

PointerLeave

Receives Event::Pointer Leave variant — fired when the pointer leaves a view’s bounds.

PointerMove

Receives Event::Pointer Move variant — fired when the pointer moves.

PointerUp

Receives Event::Pointer Up variant — fired when a pointer button is released.

PointerWheel

Receives Event::Pointer Scroll variant — fired for scroll wheel or touchpad scroll.

SecondaryClick

Receives Event::Interaction SecondaryClick variant — fired when a secondary (right) pointer button click is detected.

ThemeChanged

Receives Event::Window ThemeChanged variant — fired when the system theme changes (e.g., light to dark mode).

UpdatePhaseBoxTreeCommit

Receives Event::Window(UpdatePhase(BoxTreeCommit)) — fired when box tree changes are being committed (finalized before painting).

UpdatePhaseBoxTreePendingUpdates

Receives Event::Window(UpdatePhase(BoxTreePendingUpdates)) — fired when incremental box tree changes for specific views are being processed.

UpdatePhaseBoxTreeUpdate

Receives Event::Window(UpdatePhase(BoxTreeUpdate)) — fired when the box tree is being updated from layout results.

UpdatePhaseComplete

Receives Event::Window(UpdatePhase(Complete)) — fired when the entire update cycle is complete and the window is ready for painting if needed.

UpdatePhaseLayout

Receives Event::Window(UpdatePhase(Layout)) — fired during the layout computation phase.

UpdatePhasePaintPresent

Receives Event::Window(UpdatePhase(PaintPresent)) — fired when the entire update cycle is complete and the window is ready for painting if needed.

UpdatePhaseProcessingMessages

Receives Event::Window(UpdatePhase(ProcessingMessages)) — fired at the start of the update cycle’s message processing phase.

UpdatePhaseStyle

Receives Event::Window(UpdatePhase(Style)) — fired during the style resolution phase.

WindowChangeUnderCursor

Receives Event::Window ChangeUnderCursor variant — fired when the element under the cursor changes (e.g., after a layout update or view tree change at the current pointer position).

WindowCloseRequested

Receives Event::Window CloseRequested variant — fired when the system requests that the window close.

WindowClosed

Receives Event::Window Closed variant — fired when the window is closed.

WindowGainedFocus

Receives Event::Window FocusGained variant — fired when the window gains OS-level input focus (distinct from view-level focus tracked by FocusGained).

WindowLostFocus

Receives Event::Window FocusLost variant — fired when the window loses OS-level input focus (distinct from view-level focus tracked by FocusLost).

WindowMaximizeChanged

Receives Event::Window MaximizeChanged variant — fired when the window’s maximized state changes. The boolean is true if now maximized.

WindowMoved

Receives Event::Window Moved variant — fired when the window is moved.

WindowResized

Receives Event::Window Resized variant — fired when the window size changes.

WindowScaleChanged

Receives Event::Window ScaleChanged variant — fired when the window’s DPI scale factor changes (e.g., when moved to a different display).

Traits

EventListenerTrait