public static FabTabItem FindFabTabFromItem(this FabTabControl control, object item)
{
FabTabItem fabTab = item as FabTabItem;
if (fabTab == null)
{
fabTab = control.ItemContainerGenerator.ContainerFromItem(item) as FabTabItem;
}
return(fabTab);
}
public bool IsDraggable(UIElement dragElt)
{
if (dragElt is FabTabItem)
{
//I wonder if there are performance issues with making this call in a
//potentially frequently-called method like this
_tabControl = this.GetFabTabItemsParent(dragElt);
if (_tabControl.AllowDragAndDropTabReordering)
{
return(true);
}
}
return(false);
}
void NoXamlWindow_Loaded(object sender, RoutedEventArgs e)
{
myTabControl = new FabTabControl();
FabTabItem tab1 = new FabTabItem();
tab1.Content = new SampleView();
tab1.Header = "Tab 1";
FabTabItem tab2 = new FabTabItem();
tab2.Content = new SampleView();
tab2.Header = "Tab 2";
myTabControl.Items.Add(tab1);
myTabControl.Items.Add(tab2);
grid.Children.Add(myTabControl);
}
public DataObject GetDataObject(UIElement draggedElt)
{
if (draggedElt == null)
{
return(null);
}
if (_tabControl == null)
{
_tabControl = GetFabTabItemsParent(draggedElt);
}
if (_tabControl == null)
{
throw new Exception("Can't find parent FabTabControl for FabTabItem");
}
FabTabItem fti = draggedElt as FabTabItem;
DataObject obj = new DataObject("FabTabItem", _tabControl.ItemContainerGenerator.IndexFromContainer(fti).ToString());
return(obj);
}
public DataObject GetDataObject(UIElement draggedElt)
{
if (draggedElt == null)
{
return null;
}
if (_tabControl == null)
{
_tabControl = GetFabTabItemsParent(draggedElt);
}
if (_tabControl == null)
{
throw new Exception("Can't find parent FabTabControl for FabTabItem");
}
FabTabItem fti = draggedElt as FabTabItem;
DataObject obj = new DataObject("FabTabItem", _tabControl.ItemContainerGenerator.IndexFromContainer(fti).ToString());
return obj;
}
public void OnDropCompleted(IDataObject obj, UIElement sender)
{
//FabTabItem fabTabItem = _targetElt as FabTabItem;
//FabTabControl fabTabControl = this.GetFabTabItemsParent(fabTabItem);
FabTabItem dropTargetTabItem = sender as FabTabItem;
FabTabControl fabTabControl = this.GetFabTabItemsParent(sender);
int indexToInsertAt = fabTabControl.ItemContainerGenerator.IndexFromContainer(dropTargetTabItem);
if (indexToInsertAt == -1)
{
throw new Exception("item not found");
}
int index = ExtractElementIndex(obj);
FabTabItem targetFabTabItem = fabTabControl.ItemContainerGenerator.ContainerFromIndex(index) as FabTabItem;
if (fabTabControl.Items.Contains(targetFabTabItem))
{
fabTabControl.Items.Remove(targetFabTabItem);
//need a special case here because if there's only 2 items left, removing one
//removes the contenttab and we have to account for that
if (fabTabControl.Items.Count == 1 && indexToInsertAt == 2 && fabTabControl.ShowContentsTab)
{
fabTabControl.Items.Add(targetFabTabItem);
}
else
{
fabTabControl.Items.Insert(indexToInsertAt, targetFabTabItem);
}
}
else if (fabTabControl.ItemsSource != null)
{
IList items = fabTabControl.ItemsSource as IList;
if (items != null)
{
object content = targetFabTabItem.Content;
fabTabControl.ItemsSource = null;
items.Remove(content);
items.Insert(indexToInsertAt, content);
fabTabControl.ItemsSource = items;
}
}
else
{
object content = targetFabTabItem.Content;
fabTabControl.Items.Remove(content);
//TODO, reduce the duplication with this if block and the one right above.
if (fabTabControl.Items.Count == 1 && indexToInsertAt == 2 && fabTabControl.ShowContentsTab)
{
fabTabControl.Items.Add(content);
}
else
{
//removing the content and re-inserting it causes a new FabTabItem to be generated
//therefore anybody subscribing to TabClosing events will no longer receive notifications.
//This is only a problem for using Items collection with nonFabTabItems put into it
//so that the ItemContainerGenerator itself has to create them.
fabTabControl.Items.Insert(indexToInsertAt, content);
}
}
fabTabControl.SelectedIndex = indexToInsertAt;
}
public ExplorerControl(FabTabControl fabTab)
{
_fabTab = fabTab;
InitializeComponent();
}
public bool IsDraggable(UIElement dragElt)
{
if (dragElt is FabTabItem )
{
//I wonder if there are performance issues with making this call in a
//potentially frequently-called method like this
_tabControl = this.GetFabTabItemsParent(dragElt);
if (_tabControl.AllowDragAndDropTabReordering)
{
return true;
}
}
return false;
}
