Enum DragSourceEvent 

pub enum DragSourceEvent {
    Start(DragStartEvent),
    Move(DragMoveEvent),
    Enter(DragEnterEvent),
    Leave(DragLeaveEvent),
    End(DragEndEvent),
    Cancel(DragCancelEvent),
}

Events sent to the element being dragged during a drag operation.

These events track the lifecycle of the drag from the perspective of the source element:

• Starting and moving
• Entering and leaving potential drop targets
• Completing with either a drop or cancellation

The dragged element receives all these events and can use them to provide visual feedback, track what targets are being hovered over, and respond to the outcome of the drag.

Variants

Start(DragStartEvent)

Drag operation started - sent when the pointer has moved beyond the drag threshold while the button is held down.

Move(DragMoveEvent)

Pointer moved during drag - sent as the pointer moves while dragging.

Enter(DragEnterEvent)

The dragged element entered a potential drop target. other_element is the target that was entered.

Leave(DragLeaveEvent)

The dragged element left a potential drop target. other_element is the target that was left.

End(DragEndEvent)

Drag ended — sent when the pointer is released.

other_element is Some(target_id) if the pointer was released over a drop target, or None if released without a drop target under the pointer.

Note: DragTargetEvent::Drop is dispatched simultaneously when other_element is Some.

Cancel(DragCancelEvent)

Drag was cancelled — sent when the drag is aborted by a PointerCancel event (e.g., touch interrupted, window lost focus during touch drag).

Implementations

impl DragSourceEvent

pub fn current_state(&self) -> &PointerState

Get the current pointer state for this drag event.

pub fn current_state_mut(&mut self) -> &mut PointerState

Get a mutable reference to the current pointer state for this drag event.

pub fn start_state(&self) -> &PointerState

Get the pointer state from when the drag started.

pub fn button(&self) -> Option<PointerButton>

Get the pointer button that initiated this drag.

pub fn pointer(&self) -> &PointerInfo

Get the pointer identity information.

pub fn start_state_mut(&mut self) -> &mut PointerState

Get a mutable reference to the pointer state from when the drag started.

Trait Implementations

impl Clone for DragSourceEvent

fn clone(&self) -> DragSourceEvent

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for DragSourceEvent

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.