protected static void HandlePressExitAndEnter(NRPointerEventData eventData, GameObject newEnterTarget)
{
if (eventData.pressEnter == newEnterTarget)
{
return;
}
var oldTarget = eventData.pressEnter == null ? null : eventData.pressEnter.transform;
var newTarget = newEnterTarget == null ? null : newEnterTarget.transform;
var commonRoot = default(Transform);
for (var t = oldTarget; t != null; t = t.parent)
{
if (newTarget != null && newTarget.IsChildOf(t))
{
commonRoot = t;
break;
}
else
{
ExecuteEvents.Execute(t.gameObject, eventData, NRExecutePointerEvents.PressExitHandler);
}
}
eventData.pressEnter = newEnterTarget;
for (var t = newTarget; t != commonRoot; t = t.parent)
{
ExecuteEvents.Execute(t.gameObject, eventData, NRExecutePointerEvents.PressEnterHandler);
}
}
protected void ProcessPressDown(NRPointerEventData eventData)
{
var currentOverGo = eventData.pointerCurrentRaycast.gameObject;
eventData.pressPrecessed = true;
eventData.eligibleForClick = true;
eventData.delta = Vector2.zero;
eventData.dragging = false;
eventData.useDragThreshold = true;
eventData.pressPosition = eventData.position;
eventData.pressPosition3D = eventData.position3D;
eventData.pressRotation = eventData.rotation;
eventData.pressDistance = eventData.pointerCurrentRaycast.distance;
eventData.pointerPressRaycast = eventData.pointerCurrentRaycast;
DeselectIfSelectionChanged(currentOverGo, eventData);
var newPressed = ExecuteEvents.ExecuteHierarchy(currentOverGo, eventData, ExecuteEvents.pointerDownHandler);
if (newPressed == null)
{
newPressed = ExecuteEvents.GetEventHandler <IPointerClickHandler>(currentOverGo);
}
var time = Time.unscaledTime;
if (newPressed == eventData.lastPress)
{
if (eventData.raycaster != null && time < (eventData.clickTime + NRInput.ClickInterval))
{
++eventData.clickCount;
}
else
{
eventData.clickCount = 1;
}
eventData.clickTime = time;
}
else
{
eventData.clickCount = 1;
}
eventData.pointerPress = newPressed;
eventData.rawPointerPress = currentOverGo;
eventData.clickTime = time;
eventData.pointerDrag = ExecuteEvents.GetEventHandler <IDragHandler>(currentOverGo);
if (eventData.pointerDrag != null)
{
ExecuteEvents.Execute(eventData.pointerDrag, eventData, ExecuteEvents.initializePotentialDrag);
}
}
protected bool ShouldStartDrag(NRPointerEventData eventData)
{
if (!eventData.useDragThreshold || eventData.raycaster == null)
{
return(true);
}
var currentPos = eventData.position3D + (eventData.rotation * Vector3.forward) * eventData.pressDistance;
var pressPos = eventData.pressPosition3D + (eventData.pressRotation * Vector3.forward) * eventData.pressDistance;
var threshold = NRInput.DragThreshold;
return((currentPos - pressPos).sqrMagnitude >= threshold * threshold);
}
protected virtual void ProcessPress(NRPointerEventData eventData)
{
if (eventData.GetPress())
{
if (!eventData.pressPrecessed)
{
ProcessPressDown(eventData);
}
HandlePressExitAndEnter(eventData, eventData.pointerCurrentRaycast.gameObject);
}
else if (eventData.pressPrecessed)
{
ProcessPressUp(eventData);
HandlePressExitAndEnter(eventData, null);
}
}
protected void ProcessDrag(NRPointerEventData eventData)
{
var moving = !Mathf.Approximately(eventData.position3DDelta.sqrMagnitude, 0f) || !Mathf.Approximately(Quaternion.Angle(Quaternion.identity, eventData.rotationDelta), 0f);
if (moving && eventData.pointerDrag != null && !eventData.dragging && ShouldStartDrag(eventData))
{
ExecuteEvents.Execute(eventData.pointerDrag, eventData, ExecuteEvents.beginDragHandler);
eventData.dragging = true;
}
if (eventData.dragging && moving && eventData.pointerDrag != null)
{
if (eventData.pointerPress != eventData.pointerDrag)
{
ExecuteEvents.Execute(eventData.pointerPress, eventData, ExecuteEvents.pointerUpHandler);
eventData.eligibleForClick = false;
eventData.pointerPress = null;
eventData.rawPointerPress = null;
}
ExecuteEvents.Execute(eventData.pointerDrag, eventData, ExecuteEvents.dragHandler);
}
}
protected void ProcessPressUp(NRPointerEventData eventData)
{
var currentOverGo = eventData.pointerCurrentRaycast.gameObject;
ExecuteEvents.Execute(eventData.pointerPress, eventData, ExecuteEvents.pointerUpHandler);
var pointerUpHandler = ExecuteEvents.GetEventHandler <IPointerClickHandler>(currentOverGo);
if (eventData.pointerPress == pointerUpHandler && eventData.eligibleForClick)
{
ExecuteEvents.Execute(eventData.pointerPress, eventData, ExecuteEvents.pointerClickHandler);
}
else if (eventData.pointerDrag != null && eventData.dragging)
{
ExecuteEvents.ExecuteHierarchy(currentOverGo, eventData, ExecuteEvents.dropHandler);
}
eventData.pressPrecessed = false;
eventData.eligibleForClick = false;
eventData.pointerPress = null;
eventData.rawPointerPress = null;
if (eventData.pointerDrag != null && eventData.dragging)
{
ExecuteEvents.Execute(eventData.pointerDrag, eventData, ExecuteEvents.endDragHandler);
}
eventData.dragging = false;
eventData.pointerDrag = null;
if (currentOverGo != eventData.pointerEnter)
{
HandlePointerExitAndEnter(eventData, null);
HandlePointerExitAndEnter(eventData, currentOverGo);
}
}
