internal bool SelectTabItem(TabItem ti)
{
var panel = Helper.FindVirtualizingTabPanel(this);
if (panel != null)
{
panel.MakeVisible(ti, Rect.Empty);
}
SelectedItem = ti;
var result = ti.Focus();
if (TabItemSelected != null)
{
TabItemSelected(this, new TabItemEventArgs(ti));
}
return(result);
}
/*
* Protected override methods
*
*/
/// <summary>
/// OnApplyTemplate override
/// </summary>
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
// set up the event handler for the template parts
_toggleButton = this.Template.FindName("PART_DropDown", this) as ToggleButton;
if (_toggleButton != null)
{
// create a context menu for the togglebutton
System.Windows.Controls.ContextMenu cm = new ContextMenu();
cm.PlacementTarget = _toggleButton;
cm.Placement = PlacementMode.Bottom;
// create a binding between the togglebutton's IsChecked Property
// and the Context Menu's IsOpen Property
Binding b = new Binding();
b.Source = _toggleButton;
b.Mode = BindingMode.TwoWay;
b.Path = new PropertyPath(ToggleButton.IsCheckedProperty);
cm.SetBinding(ContextMenu.IsOpenProperty, b);
_toggleButton.ContextMenu = cm;
_toggleButton.Checked += DropdownButton_Checked;
}
ScrollViewer scrollViewer = this.Template.FindName("PART_ScrollViewer", this) as ScrollViewer;
// set up event handlers for the RepeatButtons Click event
RepeatButton repeatLeft = this.Template.FindName("PART_RepeatLeft", this) as RepeatButton;
if (repeatLeft != null)
{
repeatLeft.Click += delegate
{
if (scrollViewer != null)
{
scrollViewer.LineLeft();
}
GC.Collect();
};
}
RepeatButton repeatRight = this.Template.FindName("PART_RepeatRight", this) as RepeatButton;
if (repeatRight != null)
{
repeatRight.Click += delegate
{
if (scrollViewer != null)
{
scrollViewer.LineRight();
}
GC.Collect();
};
}
// set up the event handler for the 'New Tab' Button Click event
ButtonBase button = this.Template.FindName("PART_NewTabButton", this) as ButtonBase;
if (button != null)
{
button.Click += delegate
{
int i = this.SelectedIndex;
TabItem item = new TabItem();
item.Header = "New Tab";
if (i == -1 || i == this.Items.Count - 1 || AddNewTabToEnd)
{
this.Items.Add(item);
}
else
{
this.Items.Insert(++i, item);
}
if (SelectNewTabOnCreate)
{
SelectedItem = item;
VirtualizingTabPanel itemsHost = Helper.FindVirtualizingTabPanel(this);
if (itemsHost != null)
{
itemsHost.MakeVisible(item, Rect.Empty);
}
item.Focus();
if (TabItemSelected != null)
{
TabItemSelected(this, new TabItemEventArgs(item));
}
}
if (TabItemAdded != null)
{
TabItemAdded(this, new TabItemEventArgs(item));
}
};
}
}
