cursorController property
set
cursorController
(CursorController? v)
The cursor publication this viewport clips.
A descendant editor that scrolls out of the viewport must not publish a terminal cursor there. Without a controller the viewport clips nothing, so a host that builds this render object directly passes the owner's controller to keep that guarantee.
Implementation
set cursorController(CursorController? v) {
if (identical(_cursorController, v)) return;
_cursorController = v;
markNeedsPaint();
}