void SwapHitChain(HitChain hitChain)
{
if (_previousChain != null)
{
_hitChainStack.Push(_previousChain);
}
_previousChain = hitChain;
//temp fix here
_previousChain.Reset();
}
// static RenderElement HitTestOnPreviousChain(HitChain hitPointChain, HitChain previousChain, int x, int y)
// {
//#if DEBUG
// if (hitPointChain == previousChain)
// {
// throw new NotSupportedException();
// }
//#endif
// if (previousChain.Count > 0)
// {
// previousChain.SetStartTestPoint(x, y);
// //test on prev chain top to bottom
// int j = previousChain.Count;
// for (int i = 0; i < j; ++i)
// {
// HitInfo hitInfo = previousChain.GetHitInfo(i);
// RenderElement elem = hitInfo.HitElemAsRenderElement;
// if (elem != null && elem.VisibleAndHasParent)
// {
// if (elem.Contains(hitInfo.point))
// {
// RenderElement found = elem.FindUnderlyingSiblingAtPoint(hitInfo.point);
// if (found == null)
// {
// Point leftTop = elem.Location;
// hitPointChain.OffsetTestPoint(leftTop.X, leftTop.Y);
// hitPointChain.AddHitObject(elem);
// //add to chain
// }
// else
// {
// break;
// }
// }
// }
// else
// {
// break;
// }
// }
// }
// //---------------------------------
// if (hitPointChain.Count > 0)
// {
// var commonElement = hitPointChain.GetHitInfo(hitPointChain.Count - 1).HitElemAsRenderElement;
// hitPointChain.RemoveCurrentHit();
// return commonElement;
// }
// else
// {
// return null;
// }
// }
void HitTestCoreWithPrevChainHint(HitChain hitChain, HitChain previousChain, int x, int y)
{
//---------------------------------
//test on previous chain first , find common element
hitChain.Reset();
hitChain.SetStartTestPoint(x, y);
#if DEBUG
hitChain.dbugHitPhase = _dbugHitChainPhase;
#endif
//if (this.dbugId > 0 && isDragging && previousChain.Count > 1)
//{
//}
//RenderElement commonElement = HitTestOnPreviousChain(hitPointChain, previousChain, x, y);
//temp fix
//TODO: fix bug on HitTestOnPreviousChain()
RenderElement commonElement = _topRenderElement;
commonElement.HitTestCore(hitChain);
//remove disable elements
//if (hitPointChain.dbugHitPhase == dbugHitChainPhase.MouseDown)
//{
int j = hitChain.Count;
for (int i = 0; i < j; ++i)
{
HitInfo info = hitChain.GetHitInfo(i);
RenderElement renderE = info.HitElemAsRenderElement;
if (renderE != null && renderE.GetController() is IUIEventListener ui && !ui.Enabled)
{
HitChain.UnsafeClear(hitChain);
break;//stop loop and exit
}
}
//}
}
void IEventPortal.PortalMouseMove(UIMouseMoveEventArgs e)
{
HitChain hitPointChain = GetFreeHitChain();
#if DEBUG
_dbugHitChainPhase = dbugHitChainPhase.MouseMove;
#endif
HitTestCoreWithPrevChainHint(hitPointChain, _previousChain, e.X, e.Y);
_previousChain.Reset();
SetEventOrigin(e, hitPointChain);
//-------------------------------------------------------
ForEachOnlyEventPortalBubbleUp(e, hitPointChain, (e1, portal) =>
{
//please ensure=> no local var/pararmeter capture inside lambda
portal.PortalMouseMove(e1);
return(true);
});
//-------------------------------------------------------
if (!e.CancelBubbling)
{
_mouseMoveFoundSomeHit = false;
_mouseMoveFoundLastMouseActive = false;
ForEachEventListenerBubbleUp(e, hitPointChain, (e1, listener) =>
{
//please ensure=> no local var/pararmeter capture inside lambda
_mouseMoveFoundSomeHit = true;
#if DEBUG
if (_dbugEnableDebugMark && e.Ctrl && e1.X <= 10 && e1.Y <= 10)
{
//show dbug info
listener.dbugDevWriteInfo();
}
#endif
bool _bubble = true; //temp fix
if (_latestMouseActive != listener && !_mouseMoveFoundLastMouseActive)
{
//----------
e1.CancelBubbling = _bubble; //temp fix
listener.ListenMouseEnter(e1);
_bubble = e1.CancelBubbling;
//----------
if (_latestMouseActive != null)
{
_mouseLeaveEventArgs.SetCurrentContextElement(_latestMouseActive);
UIMouseLeaveEventArgs.SetDiff(_mouseLeaveEventArgs, e1.XDiff, e1.YDiff);
_latestMouseActive.ListenMouseLeave(_mouseLeaveEventArgs);
}
_latestMouseActive = listener;
}
if (!e1.IsCanceled)
{
//TODO: review here
e1.CancelBubbling = _bubble; //temp fix
listener.ListenMouseMove(e1);
if (!_mouseMoveFoundLastMouseActive)
{
_latestMouseActive = e1.CurrentContextElement;
}
}
if (!e1.CancelBubbling)
{
_mouseMoveFoundLastMouseActive = true;
}
return(e1.CancelBubbling);
});
if (!_mouseMoveFoundSomeHit)
{
if (_latestMouseActive != null)
{
_mouseLeaveEventArgs.IsDragging = e.IsDragging;
UIMouseLeaveEventArgs.SetDiff(_mouseLeaveEventArgs, e.XDiff, e.YDiff);
_mouseLeaveEventArgs.SetCurrentContextElement(_latestMouseActive);
_latestMouseActive.ListenMouseLeave(_mouseLeaveEventArgs);
_latestMouseActive = null;
}
}
}
SwapHitChain(hitPointChain);
e.StopPropagation();
}