A single entry in Action.defaultBinding[]. Either a bare GestureSpec
(no per-binding opts) or an object form that pairs a spec with
BindingOpts for parametric actions (e.g. { params: { axis: 'x' } }).
Use the object form when two bindings for the same action differ only in
a runtime parameter — the dispatcher extracts opts.params and passes
them to ImmediateInvoker.run as its second argument.
A single entry in
Action.defaultBinding[]. Either a bareGestureSpec(no per-binding opts) or an object form that pairs a spec withBindingOptsfor parametric actions (e.g.{ params: { axis: 'x' } }). Use the object form when two bindings for the same action differ only in a runtime parameter — the dispatcher extractsopts.paramsand passes them toImmediateInvoker.runas its second argument.