static void SetEventOrigin(UIEventArgs e, VgHitChain hitChain)
{
int count = hitChain.Count;
if (count > 0)
{
VgHitInfo hitInfo = hitChain.GetHitInfo(count - 1);
e.SetExactHitObject(hitInfo);
}
}
static void ForEachSvgElementBubbleUp(UIEventArgs e, VgHitChain hitChain, System.Func<bool> listenerAction)
{
for (int i = hitChain.Count - 1; i >= 0; --i)
{
//propagate up
VgHitInfo hitInfo = hitChain.GetHitInfo(i);
//---------------------
//hit on element
e.SetLocation((int)hitInfo.x, (int)hitInfo.y);
if (listenerAction())
{
return;
}
}
}
static void ForEachOnlyEventPortalBubbleUp(UIEventArgs e, VgHitChain hitPointChain, System.Func<IEventPortal, bool> eventPortalAction)
{
//only listener that need tunnel down
for (int i = hitPointChain.Count - 1; i >= 0; --i)
{
//propagate up
VgHitInfo hitInfo = hitPointChain.GetHitInfo(i);
if (hitInfo.hitElem.GetController() is SvgElement svg &&
SvgElement.UnsafeGetController(svg) is IEventPortal controller)
{
e.SetLocation((int)hitInfo.x, (int)hitInfo.y);
if (eventPortalAction(controller))
{
return;
}
}
}
}
static void ForEachEventListenerBubbleUp(UIEventArgs e, VgHitChain hitChain, System.Func <bool> listenerAction)
{
for (int i = hitChain.Count - 1; i >= 0; --i)
{
//propagate up
VgHitInfo hitInfo = hitChain.GetHitInfo(i);
IUIEventListener controller = SvgElement.UnsafeGetController(hitInfo.GetSvgElement()) as IUIEventListener;
//switch (hitInfo.hitObjectKind)
//{
// default:
// {
// continue;
// }
// case HitObjectKind.Run:
// {
// CssRun run = (CssRun)hitInfo.hitObject;
// controller = CssBox.UnsafeGetController(run.OwnerBox) as IEventListener;
// } break;
// case HitObjectKind.CssBox:
// {
// CssBox box = (CssBox)hitInfo.hitObject;
// controller = CssBox.UnsafeGetController(box) as IEventListener;
// } break;
//}
//---------------------
if (controller != null)
{
//found controller
e.SetCurrentContextElement(controller);
e.SetLocation((int)hitInfo.x, (int)hitInfo.y);
if (listenerAction())
{
return;
}
}
}
}