private void OnLoaded(object sender, RoutedEventArgs args)
{
// If the NavViewItem is not prepared in an ItemPresenter it will be missing a reference to NavigationView, so adding that here.
if (m_navigationView == null)
{
SetNavigationViewParent(SharedHelpers.GetAncestorOfType <NavigationView>(this));
}
}
private void OnContainerContentChanging(ListViewBase sender, ContainerContentChangingEventArgs args)
{
var tabView = SharedHelpers.GetAncestorOfType <TabView>(VisualTreeHelper.GetParent(this));
if (tabView != null)
{
var internalTabView = tabView;
internalTabView.UpdateTabContent();
}
}
NavigationViewItem GetNavigationViewItem()
{
NavigationViewItem navigationViewItem = null;
var item = SharedHelpers.GetAncestorOfType <NavigationViewItem>(VisualTreeHelper.GetParent(this));
if (item != null)
{
navigationViewItem = item;
}
return(navigationViewItem);
}
protected override void OnItemsChanged(object item)
{
base.OnItemsChanged(item);
var tabView = SharedHelpers.GetAncestorOfType <TabView>(VisualTreeHelper.GetParent(this));
if (tabView != null)
{
var internalTabView = tabView;
internalTabView.OnItemsChanged(item);
}
}
// TODO Uno specific: ensure the items are updated for ItemsSource change as Items are not yet in sync with ItemsSource properly
internal override void OnItemsSourceSingleCollectionChanged(object sender, NotifyCollectionChangedEventArgs args, int section)
{
base.OnItemsSourceSingleCollectionChanged(sender, args, section);
var tabView = SharedHelpers.GetAncestorOfType <TabView>(VisualTreeHelper.GetParent(this));
if (tabView != null)
{
var internalTabView = tabView;
var vectorChangedArgs = args.ToVectorChangedEventArgs();
internalTabView.OnItemsChanged(vectorChangedArgs);
}
}
private void RequestClose()
{
var tabView = SharedHelpers.GetAncestorOfType <TabView>(VisualTreeHelper.GetParent(this));
if (tabView != null)
{
var internalTabView = tabView;
if (internalTabView != null)
{
internalTabView.RequestCloseTab(this, false);
}
}
}
private NavigationViewItem GetNavigationViewItem()
{
NavigationViewItem navigationViewItem = null;
DependencyObject obj = this;
var item = SharedHelpers.GetAncestorOfType <NavigationViewItem>(VisualTreeHelper.GetParent(obj));
if (item != null)
{
navigationViewItem = item;
}
return(navigationViewItem);
}
internal NavigationView GetNavigationView()
{
//Because of Overflow popup, we can't get NavigationView by SharedHelpers::GetAncestorOfType
NavigationView navigationView = null;
var navigationViewList = GetNavigationViewList();
if (navigationViewList != null)
{
navigationView = navigationViewList.GetNavigationViewParent();
}
else
{
// Like Settings, it's NavigationViewItem, but it's not in NavigationViewList. Give it a second chance
navigationView = SharedHelpers.GetAncestorOfType <NavigationView>(VisualTreeHelper.GetParent(this));
}
return(navigationView);
}
protected override void PrepareContainerForItemOverride(DependencyObject element, object item)
{
var itemContainer = (TabViewItem)element;
var tvi = itemContainer;
// Due to virtualization, a TabViewItem might be recycled to display a different tab data item.
// In that case, there is no need to set the TabWidthMode of the TabViewItem or its parent TabView
// as they are already set correctly here.
//
// We know we are currently looking at a TabViewItem being recycled if its parent TabView has already been set.
if (tvi.GetParentTabView() == null)
{
var tabView = SharedHelpers.GetAncestorOfType <TabView>(VisualTreeHelper.GetParent(this));
if (tabView != null)
{
tvi.OnTabViewWidthModeChanged(tabView.TabWidthMode);
tvi.SetParentTabView(tabView);
}
}
base.PrepareContainerForItemOverride(element, item);
}
private void SynchronizeMenuBar() => m_menuBar = SharedHelpers.GetAncestorOfType <MenuBar>(VisualTreeHelper.GetParent(this));
internal NavigationViewList GetNavigationViewList()
{
// Find parent NavigationViewList
return(SharedHelpers.GetAncestorOfType <NavigationViewList>(VisualTreeHelper.GetParent(this)));
}
protected override void OnApplyTemplate()
{
var popupRadius = (CornerRadius)ResourceAccessor.ResourceLookup(this, c_overlayCornerRadiusKey);
var tabView = SharedHelpers.GetAncestorOfType <TabView>(VisualTreeHelper.GetParent(this));
var internalTabView = tabView ?? null;
Button GetCloseButton(TabView internalTabView)
{
var closeButton = (Button)GetTemplateChild("CloseButton");
if (closeButton != null)
{
// Do localization for the close button automation name
if (string.IsNullOrEmpty(AutomationProperties.GetName(closeButton)))
{
var closeButtonName = ResourceAccessor.GetLocalizedStringResource(SR_TabViewCloseButtonName);
AutomationProperties.SetName(closeButton, closeButtonName);
}
if (internalTabView != null)
{
// Setup the tooltip for the close button
var tooltip = new ToolTip();
tooltip.Content = internalTabView.GetTabCloseButtonTooltipText();
ToolTipService.SetToolTip(closeButton, tooltip);
}
closeButton.Click += OnCloseButtonClick;
}
return(closeButton);
}
m_closeButton = GetCloseButton(internalTabView);
OnIconSourceChanged();
if (tabView != null)
{
if (SharedHelpers.IsThemeShadowAvailable())
{
if (internalTabView != null)
{
var shadow = new ThemeShadow();
if (!SharedHelpers.Is21H1OrHigher())
{
if (internalTabView.GetShadowReceiver() is UIElement shadowReceiver)
{
shadow.Receivers.Add(shadowReceiver);
}
}
m_shadow = shadow;
double shadowDepth = (double)SharedHelpers.FindInApplicationResources(TabView.c_tabViewShadowDepthName, TabView.c_tabShadowDepth);
var currentTranslation = Translation;
var translation = new Vector3(currentTranslation.X, currentTranslation.Y, (float)shadowDepth);
Translation = translation;
UpdateShadow();
}
}
tabView.TabDragStarting += OnTabDragStarting;
tabView.TabDragCompleted += OnTabDragCompleted;
}
UpdateCloseButton();
UpdateWidthModeVisualState();
}