private void Show()
{
// Check whether the window is still active
// (it prevent keytips showing during Alt-Tab'ing)
if (!this.window.IsActive)
{
this.RestoreFocuses();
return;
}
this.currentUserInput = string.Empty;
this.activeAdornerChain = new KeyTipAdorner(this.ribbon, this.ribbon, null);
this.activeAdornerChain.Terminated += this.OnAdornerChainTerminated;
// Special behavior for backstage
var backstage = this.ribbon.Menu as Backstage;
if (backstage != null && backstage.IsOpen)
{
var keys = KeyTip.GetKeys(backstage);
if (!String.IsNullOrEmpty(keys))
{
this.activeAdornerChain.Forward(KeyTip.GetKeys(backstage), false);
}
else
{
this.activeAdornerChain.Attach();
}
}
else
{
this.activeAdornerChain.Attach();
}
}
// Find key tips on the given element
private void FindKeyTips(UIElement element, bool hide)
{
this.Log("FindKeyTips");
IEnumerable children = LogicalTreeHelper.GetChildren(element);
foreach (object item in children)
{
UIElement child = item as UIElement;
RibbonGroupBox groupBox = (child as RibbonGroupBox);
if (child != null)
{
string keys = KeyTip.GetKeys(child);
if (keys != null)
{
// Gotcha!
KeyTip keyTip = new KeyTip
{
Content = keys,
Visibility = hide
? Visibility.Collapsed
: Visibility.Visible
};
// Add to list & visual
// children collections
keyTips.Add(keyTip);
base.AddVisualChild(keyTip);
associatedElements.Add(child);
if (groupBox != null)
{
if (groupBox.State == RibbonGroupBoxState.Collapsed)
{
keyTip.Visibility = Visibility.Visible;
FindKeyTips(child, true);
continue;
}
else
{
keyTip.Visibility = Visibility.Collapsed;
}
}
else
{
// Bind IsEnabled property
Binding binding = new Binding("IsEnabled")
{
Source = child,
Mode = BindingMode.OneWay
};
keyTip.SetBinding(UIElement.IsEnabledProperty, binding);
continue;
}
}
if ((groupBox != null) &&
(groupBox.State == RibbonGroupBoxState.Collapsed))
{
FindKeyTips(child, true);
}
else
{
FindKeyTips(child, hide);
}
}
}
}