Method pointerOf

io/input/pointer.go:670–679

pointerOf returns the pointerInfo index corresponding to the pointer in e.

(e pointer.Event)

// pointerOf returns the pointerInfo index corresponding to the pointer in e.
func (s pointerState) pointerOf(e pointer.Event) (pointerState, int) {
	for i, p := range s.pointers {
		if p.id == e.PointerID {
			return s, i
		}
	}
	n := len(s.pointers)
	s.pointers = append(s.pointers[:n:n], pointerInfo{id: e.PointerID})
	return s, len(s.pointers) - 1
}

// Deliver is like Push, but delivers an event to a particular area.
func (q *pointerQueue) Deliver(handlers map[event.Tag]*handler, areaIdx int, e pointer.Event) []taggedEvent {