OptionaldragOptionalaffordance?: AffordanceHitOptionalpoints?: DragSample[]Full pointermove history for the current drag, in world space, with
per-sample stylus state when the browser reported it.
Accumulated by the dispatcher on every pointermove pump event.
Available only during onMove and onEnd calls (not on start).
Used by lassoSelectAction to build its polygon vertex list and by
insertAction's pencil kind to carry the freehand stroke.
OptionalscreenDelta?: Point2Drag delta in client/screen coordinates (CSS pixels from the drag
origin). Use this — never delta — for any action whose effect
mutates the viewport itself (pan, view-zoom), because world-space
deltas become self-referential as the view shifts mid-drag.
Populated when the dispatcher received clientX/clientY on the
underlying pointer events. Absent for legacy callers that don't
provide them.
OptionalkeyOptionalmultiOptionalpinch?: { centroid: Point2; currentSpread: number; startSpread: number }Pinch-zoom geometry. Populated by the dispatcher when a multitouch
handle is in flight and a pointermove-pump fires.
startSpread is the spread at the moment the gesture began.
currentSpread is the spread at the current frame.
OptionalparamsPer-invocation parameters. Populated by ActionsRegistry.begin() for
UI-driven ongoing actions (color picker, opacity slider) so handles can
read the current value on start and updated values on onMove. The
gesture dispatcher does not populate this field; gesture-driven actions
receive params via BindingOpts.params on start (the opts arg).
Optionalwheel
Per-invocation runtime context the dispatcher hands to an Invoker. Gesture-kind-specific fields (
drag,wheel,multiTouch,key) are populated only for matching gesture kinds.