protected override void OnPointerPressed(PointerRoutedEventArgs e)
{
base.OnPointerPressed(e);
NavigationBarItem element = VenturaVisualTreeHelper.FindParent <NavigationBarItem>(e.OriginalSource as DependencyObject);
if (element != null)
{
MenubarItem item = (MenubarItem)element.DataContext;
bool was_dropped = element.IsDroppedDown;
SetAllChildrenAsNotDropped();
if (was_dropped == false)
{
element.IsDroppedDown = true;
DisplayMenuPanel?.Invoke(this, item);
}
else
{
HideMenuPanel?.Invoke();
}
}
}
private void SetAllChildrenAsNotDropped()
{
foreach (var listitem in this.Items)
{
MenubarItem item = (MenubarItem)listitem;
NavigationBarItem element = (NavigationBarItem)ContainerFromItem(item);
element.IsDroppedDown = false;
}
}
public void ShowMenuPanel(MenubarItem invoked)
{
// This is needed
this.RenderTransform = null; //.Margin = new Windows.UI.Xaml.Thickness(0, 0, 0, 0);
_itemscontrol.ItemsSource = invoked.Categories;
// This is needed to, otherwise the first-time-open height is incorrect.
this.UpdateLayout();
if (_panelstatus == PanelStatus.Open)
{
return;
}
OpeningAnimation();
_panelstatus = PanelStatus.Open;
}
private void NavigationBar_DisplayMenuPanel(NavigationBarControl sender, MenubarItem item)
{
MenuPanel.ShowMenuPanel(item);
}
private void Control_DataContextChanged(FrameworkElement sender, DataContextChangedEventArgs args)
{
_menubaritem = (MenubarItem)args.NewValue;
ResetControls();
}