handlePointerDown method

@override void handlePointerDown(MouseMsg event, Offset localPosition)

Called when a pointer-down event occurs.

Implementation

@override
void handlePointerDown(MouseMsg event, Offset localPosition) {
  super.handlePointerDown(event, localPosition);

  if (_waitingForSecondTap) {
    // Check if this is within slop of the first tap.
    final delta = localPosition - _firstTapPosition!;
    if (_magnitude(delta) <= kDoubleTapSlop) {
      // This could be the second tap of a double-tap.
      // We'll confirm on pointer-up.
    } else {
      // Too far from first tap — reset and treat as new first tap.
      _resetDoubleTap();
      _firstTapPosition = localPosition;
    }
  } else {
    _firstTapPosition = localPosition;
  }
}