public virtual void ProcessAdded(object sender, PointerEventArgs pointerEventArgs)
{
#if UNITY_5_6_OR_NEWER
uiSampler.Begin();
#endif
var pointers = pointerEventArgs.Pointers;
var raycast = new RaycastResult();
var count = pointers.Count;
for (var i = 0; i < count; i++)
{
var pointer = pointers[i];
var over = pointer.GetOverData();
// Don't update the pointer if it is not over an UI element
if (over.Type != HitData.HitType.UI)
{
continue;
}
PointerEventData data;
GetPointerData(pointer.Id, out data, true);
data.Reset();
var target = over.Target;
var currentOverGo = target == null ? null : target.gameObject;
data.position = pointer.Position;
data.delta = Vector2.zero;
convertRaycast(over.RaycastHitUI, ref raycast);
raycast.screenPosition = data.position;
data.pointerCurrentRaycast = raycast;
input.HandlePointerExitAndEnter(data, currentOverGo);
}
#if UNITY_5_6_OR_NEWER
uiSampler.End();
#endif
}
public virtual void ProcessUpdated(object sender, PointerEventArgs pointerEventArgs)
{
uiSampler.Begin();
var pointers = pointerEventArgs.Pointers;
var raycast = new RaycastResult();
var count = pointers.Count;
for (var i = 0; i < count; i++)
{
var pointer = pointers[i];
// Don't update the pointer if it is pressed not over an UI element
if ((pointer.Buttons & Pointer.PointerButtonState.AnyButtonPressed) > 0)
{
var press = pointer.GetPressData();
if (press.Type != HitData.HitType.UI)
{
continue;
}
}
var over = pointer.GetOverData();
// Don't update the pointer if it is not over an UI element
if (over.Type != HitData.HitType.UI)
{
continue;
}
PointerEventData data;
GetPointerData(pointer.Id, out data, true);
data.Reset();
var target = over.Target;
var currentOverGo = target == null ? null : target.gameObject;
data.position = pointer.Position;
data.delta = pointer.Position - pointer.PreviousPosition;
convertRaycast(over.RaycastHitUI, ref raycast);
raycast.screenPosition = data.position;
data.pointerCurrentRaycast = raycast;
input.HandlePointerExitAndEnter(data, currentOverGo);
bool moving = data.IsPointerMoving();
if (moving && data.pointerDrag != null &&
!data.dragging &&
ShouldStartDrag(data.pressPosition, data.position, input.eventSystem.pixelDragThreshold, data.useDragThreshold))
{
ExecuteEvents.Execute(data.pointerDrag, data, ExecuteEvents.beginDragHandler);
data.dragging = true;
}
// Drag notification
if (data.dragging && moving && data.pointerDrag != null)
{
// Before doing drag we should cancel any pointer down state
// And clear selection!
if (data.pointerPress != data.pointerDrag)
{
ExecuteEvents.Execute(data.pointerPress, data, ExecuteEvents.pointerUpHandler);
data.eligibleForClick = false;
data.pointerPress = null;
data.rawPointerPress = null;
}
ExecuteEvents.Execute(data.pointerDrag, data, ExecuteEvents.dragHandler);
}
var mousePointer = pointer as MousePointer;
if (mousePointer != null && !Mathf.Approximately(mousePointer.ScrollDelta.sqrMagnitude, 0.0f))
{
data.scrollDelta = mousePointer.ScrollDelta;
var scrollHandler = ExecuteEvents.GetEventHandler <IScrollHandler>(currentOverGo);
ExecuteEvents.ExecuteHierarchy(scrollHandler, data, ExecuteEvents.scrollHandler);
}
}
uiSampler.End();
}
