public static void SetFocusToFocusScope(IInputElement newFocus)
{
UIElement uiElement = newFocus as UIElement;
if (uiElement == null)
{
return;
}
UIElement focusScope = FocusManager.GetFocusScope((DependencyObject)uiElement) as UIElement;
int focusScopePriority = FocusScopeManager.GetFocusScopePriority((DependencyObject)focusScope);
if (focusScopePriority == FocusScopeManager.DefaultFocusScopePriority)
{
return;
}
FocusScopeManager.Instance.OnScopeKeyboardFocusChanged(focusScope, focusScopePriority);
}
private bool IsFocusScopeManaged(UIElement focusScope, int priority, int priorityStartIndex)
{
for (int index = priorityStartIndex; index < this.scopes.Count; ++index)
{
WeakReference weakReference = this.scopes[index];
if (weakReference.IsAlive)
{
UIElement uiElement = (UIElement)weakReference.Target;
if (FocusScopeManager.GetFocusScopePriority((DependencyObject)uiElement) > priority)
{
return(false);
}
if (uiElement == focusScope)
{
return(true);
}
}
}
return(false);
}
private int FindStartIndexForPriority(int priority)
{
int index;
for (index = 0; index < this.scopes.Count; ++index)
{
WeakReference weakReference = this.scopes[index];
if (weakReference.IsAlive)
{
if (FocusScopeManager.GetFocusScopePriority((DependencyObject)weakReference.Target) >= priority)
{
break;
}
}
else
{
this.listContainsDeadReferences = true;
}
}
return(index);
}