/// <summary>
/// When overridden in a derived class, is invoked whenever application code or internal
/// processes call <see cref="FrameworkElement.ApplyTemplate"/>.
/// </summary>
public override void OnApplyTemplate()
{
_contentPresenter = null;
foreach (var autoHideBar in _autoHideBars)
{
autoHideBar.TargetArea = null;
}
_leftAutoHideBar = null;
_rightAutoHideBar = null;
_topAutoHideBar = null;
_bottomAutoHideBar = null;
_autoHideBars = null;
if (_autoHidePanel != null)
{
_autoHidePanel.Children.Clear();
_autoHidePanel = null;
}
base.OnApplyTemplate();
_contentPresenter = GetTemplateChild("PART_ContentPresenter") as ContentPresenter;
_autoHidePanel = GetTemplateChild("PART_AutoHidePanel") as Panel;
_leftAutoHideBar = GetTemplateChild("PART_AutoHideBarLeft") as AutoHideBar;
_rightAutoHideBar = GetTemplateChild("PART_AutoHideBarRight") as AutoHideBar;
_topAutoHideBar = GetTemplateChild("PART_AutoHideBarTop") as AutoHideBar;
_bottomAutoHideBar = GetTemplateChild("PART_AutoHideBarBottom") as AutoHideBar;
var autoHideBars = new List <AutoHideBar>(4);
if (_leftAutoHideBar != null)
{
_leftAutoHideBar.SetBinding(ItemsControl.ItemsSourceProperty, new Binding(nameof(IDockControl.AutoHideLeft)));
autoHideBars.Add(_leftAutoHideBar);
}
if (_rightAutoHideBar != null)
{
_rightAutoHideBar.SetBinding(ItemsControl.ItemsSourceProperty, new Binding(nameof(IDockControl.AutoHideRight)));
autoHideBars.Add(_rightAutoHideBar);
}
if (_topAutoHideBar != null)
{
_topAutoHideBar.SetBinding(ItemsControl.ItemsSourceProperty, new Binding(nameof(IDockControl.AutoHideTop)));
autoHideBars.Add(_topAutoHideBar);
}
if (_bottomAutoHideBar != null)
{
_bottomAutoHideBar.SetBinding(ItemsControl.ItemsSourceProperty, new Binding(nameof(IDockControl.AutoHideBottom)));
autoHideBars.Add(_bottomAutoHideBar);
}
_autoHideBars = autoHideBars.ToArray();
foreach (var autoHideBar in _autoHideBars)
{
autoHideBar.TargetArea = _autoHidePanel;
}
}
/// <summary>
/// Invoked when an unhandled <strong>Mouse.MouseLeave</strong> attached event is raised on
/// this element. Implement this method to add class handling for this event.
/// </summary>
/// <param name="e">
/// The <see cref="MouseEventArgs"/> that contains the event data.
/// </param>
protected override void OnMouseLeave(MouseEventArgs e)
{
_hoverTimer.Stop();
AutoHideBar?.TabLeave(this);
base.OnMouseLeave(e);
UpdateVisualStates(true);
}
protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e)
{
base.OnMouseLeftButtonDown(e);
if (!e.Handled)
{
AutoHideBar?.TabClicked(this);
e.Handled = true;
}
}
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
if (!e.Handled)
{
if ((e.Key == Key.Enter || e.Key == Key.Space))
{
AutoHideBar?.TabClicked(this);
}
e.Handled = true;
}
}
/// <summary>
/// Called when the mouse cursor has hovered over the tab for a certain amount of time.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="eventArgs">
/// The <see cref="EventArgs"/> instance containing the event data.
/// </param>
private void OnMouseHover(object sender, EventArgs eventArgs)
{
_hoverTimer.Stop();
AutoHideBar?.TabEnter(this);
}
/// <summary>
/// Raises the <see cref="UIElement.LostFocus"/> routed event by using the event data that
/// is provided.
/// </summary>
/// <param name="e">
/// A <see cref="RoutedEventArgs"/> that contains event data. This event data must contain
/// the identifier for the <see cref="UIElement.LostFocus"/> event.
/// </param>
protected override void OnLostFocus(RoutedEventArgs e)
{
AutoHideBar?.TabLeave(this);
base.OnLostFocus(e);
}
/// <summary>
/// Invoked whenever an unhandled <see cref="UIElement.GotFocus"/> event reaches this
/// element in its route.
/// </summary>
/// <param name="e">
/// The <see cref="RoutedEventArgs"/> that contains the event data.
/// </param>
protected override void OnGotFocus(RoutedEventArgs e)
{
AutoHideBar?.TabEnter(this);
base.OnGotFocus(e);
}