private void Show()
{
this.timer.Stop();
// Check whether the window is
// - still present (prevents exceptions when window is closed by system commands)
// - still active (prevents keytips showing during Alt-Tab'ing)
if (this.window == null ||
this.window.IsActive == false)
{
this.RestoreFocus();
return;
}
// Special behavior for backstage, application menu and start screen.
// If one of those is open we have to forward key tips directly to them.
var keyTipsTarget = this.GetStartScreen()
?? this.GetBackstage()
?? this.GetApplicationMenu()
?? this.ribbon;
if (keyTipsTarget == null)
{
return;
}
this.ClosePopups();
this.backUpFocusedControl = null;
// If focus is inside the Ribbon already we don't want to jump around after finishing with KeyTips
if (UIHelper.GetParent <Ribbon>(Keyboard.FocusedElement as DependencyObject) == null)
{
this.backUpFocusedControl = FocusWrapper.GetWrapperForCurrentFocus();
}
if (keyTipsTarget is Ribbon targetRibbon &&
targetRibbon.IsMinimized == false &&
targetRibbon.SelectedTabIndex >= 0 &&
targetRibbon.TabControl != null)
{
// Focus ribbon
(this.ribbon.TabControl.ItemContainerGenerator.ContainerFromIndex(this.ribbon.TabControl.SelectedIndex) as UIElement)?.Focus();
}
this.ClearUserInput();
if (this.activeAdornerChain != null)
{
this.activeAdornerChain.Terminated -= this.OnAdornerChainTerminated;
}
this.activeAdornerChain = new KeyTipAdorner(keyTipsTarget, keyTipsTarget, null);
this.activeAdornerChain.Terminated += this.OnAdornerChainTerminated;
this.activeAdornerChain.Attach();
}
private void Show()
{
this.timer.Stop();
// Check whether the window is
// - still present (prevents exceptions when window is closed by system commands)
// - still active (prevents keytips showing during Alt-Tab'ing)
if (this.window == null ||
this.window.IsActive == false)
{
this.RestoreFocus();
return;
}
this.ClosePopups();
// If focus is inside the Ribbon already we don't want to jump around after finishing with KeyTips
if (UIHelper.GetParent <Ribbon>(Keyboard.FocusedElement as DependencyObject) == null)
{
this.backUpFocusedControl = FocusWrapper.GetWrapperForCurrentFocus();
}
// Focus ribbon
this.ribbon.SelectedTabItem?.Focus();
this.ClearUserInput();
this.activeAdornerChain = new KeyTipAdorner(this.ribbon, this.ribbon, null);
this.activeAdornerChain.Terminated += this.OnAdornerChainTerminated;
// Special behavior for backstage
var specialControl = this.GetBackstage()
?? this.GetApplicationMenu()
?? this.GetStartScreen();
if (specialControl != null)
{
this.DirectlyForwardToSpecialControl(specialControl);
}
else
{
this.activeAdornerChain.Attach();
}
}
private void Show()
{
this.timer.Stop();
// Check whether the window is
// - still present (prevents exceptions when window is closed by system commands)
// - still active (prevents keytips showing during Alt-Tab'ing)
if (this.window == null ||
this.window.IsActive == false)
{
this.RestoreFocus();
return;
}
this.backUpFocusedControl = FocusWrapper.GetWrapperForCurrentFocus();
// Focus ribbon
this.ribbon.Focus();
this.ClearUserInput();
this.activeAdornerChain = new KeyTipAdorner(this.ribbon, this.ribbon, null);
this.activeAdornerChain.Terminated += this.OnAdornerChainTerminated;
// Special behavior for backstage
var specialControl = this.GetBackstage()
?? this.GetApplicationMenu()
?? this.GetStartScreen();
if (specialControl != null)
{
this.DirectlyForwardToSpecialControl(specialControl);
}
else
{
this.activeAdornerChain.Attach();
}
}