static FormElementHost()
{
//Reflect out the KeyboardNavigation singleton and some methods
KeyboardNavigation = (KeyboardNavigation)typeof(System.Windows.FrameworkElement).GetProperty("KeyboardNavigation", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Static).GetValue(null, null);
_GetNextTab = KeyboardNavigation.GetType().GetMethod("GetNextTab", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
_GetPrevTab = KeyboardNavigation.GetType().GetMethod("GetPrevTab", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
_GetGroupParent = KeyboardNavigation.GetType().GetMethod("GetGroupParent", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance, null, new Type[] { typeof(System.Windows.DependencyObject), typeof(bool) }, null);
}
internal FrameworkServices()
{
// STA Requirement are checked in InputManager cctor where InputManager.Current is used in KeyboardNavigation cctor
_keyboardNavigation = new KeyboardNavigation();
_popupControlService = new PopupControlService();
}
internal FrameworkServices()
{
this._keyboardNavigation = new KeyboardNavigation();
this._popupControlService = new PopupControlService();
}
private static bool IsStop(UIElement element)
{
return(KeyboardNavigation.GetIsTabStop(element) && element.IsVisible && element.IsEnabled && element.Focusable);
}
public override Visual FindPreviousTarget(Visual scope, Stop currentStop, DependencyProperty navigationModeProperty, IStopComparerProvider stopComparerProvider)
{
return(KeyboardNavigationTarget.FindPreviousContainedTarget(scope, currentStop, navigationModeProperty, stopComparerProvider) ??
(scope.VisualParent != null ? KeyboardNavigationTarget.FindPreviousTarget(scope.VisualParent, new Stop(currentStop.Element, KeyboardNavigation.GetTabIndex(scope)), navigationModeProperty, stopComparerProvider) : null)); // translate currentStop and forward request to parent
}
public Stop(Visual element) :
this(element, KeyboardNavigation.GetTabIndex(element))
{
//
}
public void Show()
{
if (presentationSource != null)
{
return;
}
if (Application.Current.MainWindow == null)
{
Application.Current.MainWindow = this;
}
presentationSource = ApplicationHost.Current.PresentationSourceFactory.CreatePresentationSource(this);
presentationSource.Title = this.Title;
keyboardNavigation = new KeyboardNavigation(presentationSource);
}