public static void AddBindingRequest(VisualElement ve, IBindingRequest req)
{
List <IBindingRequest> l = ve.GetProperty(s_BindingRequestObjectVEPropertyName) as List <IBindingRequest>;
if (l == null)
{
l = RequestObjectListPool.Get();
ve.SetProperty(s_BindingRequestObjectVEPropertyName, l);
}
l.Add(req);
ve.IncrementVersion(VersionChangeType.Bindings);
}
public static void ClearBindingRequests(VisualElement ve)
{
List <IBindingRequest> l = ve.GetProperty(s_BindingRequestObjectVEPropertyName) as List <IBindingRequest>;
if (l != null)
{
foreach (var r in l)
{
r.Release();
}
RequestObjectListPool.Release(l);
ve.SetProperty(s_BindingRequestObjectVEPropertyName, null);
}
}
public static void RemoveBindingRequest(VisualElement ve, IBindingRequest req)
{
List <IBindingRequest> l = ve.GetProperty(s_BindingRequestObjectVEPropertyName) as List <IBindingRequest>;
if (l != null)
{
req.Release();
l.Remove(req);
if (l.Count == 0)
{
RequestObjectListPool.Release(l);
ve.SetProperty(s_BindingRequestObjectVEPropertyName, null);
}
}
}
void StopTrackingRecursive(VisualElement ve)
{
StopTracking(ve);
var bindingRequest = ve.GetProperty(s_BindingRequestObjectVEPropertyName);
if (bindingRequest != null)
{
m_ElementsToBind.Remove(ve);
}
int count = ve.hierarchy.childCount;
for (int i = 0; i < count; i++)
{
var child = ve.hierarchy[i];
StopTrackingRecursive(child);
}
}
public override void OnVersionChanged(VisualElement ve, VersionChangeType versionChangeType)
{
base.OnVersionChanged(ve, versionChangeType);
if ((versionChangeType & VersionChangeType.Bindings) == VersionChangeType.Bindings)
{
if (GetBindingObjectFromElement(ve) != null)
{
StartTracking(ve);
}
else
{
StopTracking(ve);
}
var bindingRequests = ve.GetProperty(s_BindingRequestObjectVEPropertyName);
if (bindingRequests != null)
{
m_ElementsToBind.Add(ve);
}
}
}
public static IBinding GetAdditionalBinding(VisualElement ve)
{
return(ve.GetProperty(s_AdditionalBindingObjectVEPropertyName) as IBinding);
}