protected override void OnParentSet()
{
if (RealParent != null)
{
RealParent.PropertyChanged += OnParentPropertyChanged;
RealParent.PropertyChanging += OnParentPropertyChanging;
}
base.OnParentSet();
FlowController.NotifyFlowDirectionChanged();
}
void OnParentPropertyChanged(object sender, PropertyChangedEventArgs e)
{
// Technically we might be raising this even if it didn't change, but I'm taking the bet that
// its uncommon enough that we don't want to take the penalty of N GetValue calls to verify.
if (e.PropertyName == "RowHeight")
{
OnPropertyChanged("RenderHeight");
}
else if (e.PropertyName == VisualElement.FlowDirectionProperty.PropertyName)
{
FlowController.NotifyFlowDirectionChanged();
}
}
protected override void OnPropertyChanging(string propertyName = null)
{
if (propertyName == "Parent")
{
if (RealParent != null)
{
RealParent.PropertyChanged -= OnParentPropertyChanged;
RealParent.PropertyChanging -= OnParentPropertyChanging;
}
FlowController.NotifyFlowDirectionChanged();
}
base.OnPropertyChanging(propertyName);
}
protected override void OnParentSet()
{
#pragma warning disable 0618 // retain until ParentView removed
base.OnParentSet();
if (ParentView != null)
{
NavigationProxy.Inner = ParentView.NavigationProxy;
}
else
{
NavigationProxy.Inner = null;
}
#pragma warning restore 0618
FlowController.NotifyFlowDirectionChanged();
}