Module drag 

Drag and drop reordering over gpui’s active drag.

The gesture is gpui’s: a Handle puts on_drag on the host’s element, and the payload is a Carry. Any element can take part in the same drag with on_drag_move::<Carry<I>> and on_drop::<Carry<I>> — crate::docking does.

A Domain adds landing, displacement and edge scrolling for the Regions it builds. The host lays out, scrolls and virtualizes each region’s content; a region measures the handles painted inside it in the frame being drawn, and nothing else. A landing names its neighbours by id, so a list with rows that were not painted still gets an exact place.

A domain may span views: each region’s view is redrawn for the frames the domain owes.

Structs

Carry

gpui’s drag payload for an item of a Domain.

Domain

Gesture and animation state for the regions items move between.

Drop

Where a released item goes. after and before are its neighbours among the items painted in region at release; either is None at an end of what was painted.

Ghosted

The view gpui paints under the pointer: the domain’s ghost, or nothing.

Handle

An element that can be picked up, measured by the region it is painted in.

Outside

A release over no region that accepts the item. Nothing is committed.

Region

A drop target whose content the host lays out. Style it as the box that holds the content: its visible bounds are where it takes the pointer.

Enums

Feedback

How a region shows where the item would land.

Traits

Carried

A dragged item’s floating copy.

Functions

file_drop_wash

An overlay over its parent that paints Theme::drop_target while files are dragged over it. It takes no drop: the parent’s on_drop does. Draw it last, over a relative parent.

ghost_label

A row or tab in flight, as a label: a truncated pill under the pointer.