private static void OnContentNamePropertyChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
{
ContentLayout currentOwner = GetContainer(o);
if (currentOwner != null)
{
currentOwner.OnContentNameChanged(o, (string)e.OldValue, (string)e.NewValue);
}
}
private void OnContentListCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.Action == NotifyCollectionChangedAction.Add)
{
UIElement content = (UIElement)e.NewItems[0];
ContentLayout currentOwner = ContentLayout.GetContainer(content);
if (currentOwner != null)
{
currentOwner.ContentList.Remove(content);
}
ContentLayout.SetContainer(content, this);
string contentName = ContentLayout.GetContentName(content);
ContentPresenter contentPresenter = GetPresenter(contentName);
if (contentPresenter != null)
{
Grid grid = new Grid();
grid.Children.Add(content);
contentPresenter.Content = grid;
grid.UpdateLayout();
}
}
else if (e.Action == NotifyCollectionChangedAction.Remove)
{
UIElement content = (UIElement)e.OldItems[0];
string contentName = ContentLayout.GetContentName(content);
ContentPresenter contentPresenter = GetPresenter(contentName);
if (contentPresenter != null)
{
contentPresenter.Content = null;
}
}
}
/// <internalonly />
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
if (_contentList.Count != 0)
{
Dispatcher.BeginInvoke(delegate() {
foreach (UIElement content in _contentList)
{
string contentName = ContentLayout.GetContentName(content);
ContentPresenter contentPresenter = GetPresenter(contentName);
if (contentPresenter != null)
{
Grid grid = new Grid();
grid.Children.Add(content);
contentPresenter.Content = grid;
grid.UpdateLayout();
}
}
});
}
}
internal static void SetContainer(DependencyObject o, ContentLayout value)
{
o.SetValue(ContainerProperty, value);
}
internal static void SetContainer(DependencyObject o, ContentLayout value)
{
o.SetValue(ContainerProperty, value);
}
