Module dnd

Structs§

DragEnd: Sent to the drag source when the drag ends (drop or cancel).
DragOver
DragPreviewCtx: Context passed to a drag preview painter each frame while dragging.
DragSession: Tracks an active drag session (internal widget-to-widget DnD).
DragStart
DropEvent
DroppedFile: A single dropped file descriptor.
DroppedFiles: Payload type for file drag/drop coming from the OS/browser.

current_drag_session: Current drag session snapshot (if any).
dnd_target_id_at
downcast_drag_payload: Try to downcast a drag payload to a typed reference. Used on the drop side.
drag_and_drop_source: Block-style convenience for [Modifier::on_drag_start] with a typed payload.
drag_and_drop_source_with_preview: Typed source + custom drag decoration in one call.
drag_and_drop_target: Block-style convenience for [Modifier::on_drop] with a typed payload. The drop is accepted when the closure returns true; the typed payload is downcast before the closure is invoked.
drag_payload: Wrap a typed value into a DragPayload for a drag source.
drag_preview_chip: Label chip with a slightly larger “elevated” look (shadow-ish fill).
drag_preview_label: Simple floating label chip (good default for tabs / list rows).
handle_drag_action: Handle a DragAction from the platform. Returns true if the action was consumed.
is_dragging: Check if a drag session is currently active.
overlay_drag_indicator: Draw drag overlay indicator on the scene. external_file_drag enables orange styling for OS/browser file-drop overlays.
provide_drag_preview: Call from on_drag_start to supply a session-specific preview.
set_dnd_frame: Set the current frame for DnD hit-testing. Called by platform after each render.
set_dnd_scale: Set the display scale for DnD slop calculation.

DragPayload: Opaque payload moved during internal drag & drop. Use downcast_drag_payload on the receiver side to recover a typed value.
DragPreview: Painter for the floating drag decoration. Coordinates are in screen px. Draw relative to ctx.pointer / ctx.grab_offset.