public static IDictionary <int, List <VisualElement> > GetTabIndexesOnParentPage(this VisualElement element, out int countChildrensWithTabStopWithoutThis)
{
countChildrensWithTabStopWithoutThis = 0;
Element parentPage = element.Parent;
while (parentPage != null && !(parentPage is Page))
{
parentPage = parentPage.Parent;
}
var descendantsOnPage = parentPage?.VisibleDescendants();
if (descendantsOnPage == null)
{
return(null);
}
var childrensWithTabStop = new List <VisualElement>();
foreach (var descendant in descendantsOnPage)
{
if (descendant is VisualElement visualElement && visualElement.IsTabStop)
{
childrensWithTabStop.Add(visualElement);
}
}
if (!childrensWithTabStop.Contains(element))
{
return(null);
}
countChildrensWithTabStopWithoutThis = childrensWithTabStop.Count - 1;
return(childrensWithTabStop.GroupToDictionary(c => c.TabIndex));
}
public static IDictionary <int, List <ITabStopElement> > GetTabIndexesOnParentPage(this ITabStopElement element, out int countChildrensWithTabStopWithoutThis, bool checkContainsElement = true)
{
countChildrensWithTabStopWithoutThis = 0;
Element parentPage = (element as Element)?.Parent;
while (parentPage != null && !(parentPage is Page))
{
parentPage = parentPage.Parent;
}
var descendantsOnPage = parentPage?.VisibleDescendants();
if (parentPage is Shell shell)
{
descendantsOnPage = shell.Items;
}
if (descendantsOnPage == null)
{
return(new Dictionary <int, List <ITabStopElement> >());
}
var childrensWithTabStop = new List <ITabStopElement>();
foreach (var descendant in descendantsOnPage)
{
if (descendant is ITabStopElement visualElement && visualElement.IsTabStop)
{
if (descendant is TableView tableView)
{
foreach (var child in tableView.AllChildren)
{
if (child is ITabStopElement childElement && childElement.IsTabStop)
{
childrensWithTabStop.Add(childElement);
}
}
}
childrensWithTabStop.Add(visualElement);
}
}
if (checkContainsElement && !childrensWithTabStop.Contains(element))
{
return(new Dictionary <int, List <ITabStopElement> >());
}
countChildrensWithTabStopWithoutThis = childrensWithTabStop.Count - 1;
return(childrensWithTabStop.GroupToDictionary(c => c.TabIndex));
}
public static IDictionary <int, List <ITabStopElement> > GetTabIndexesOnParentPage(this ITabStopElement element, out int countChildrenWithTabStopWithoutThis)
{
var empty = new Dictionary <int, List <ITabStopElement> >();
countChildrenWithTabStopWithoutThis = 0;
Element parentPage = (element as Element)?.Parent;
while (parentPage != null && !(parentPage is Page))
{
parentPage = parentPage.Parent;
}
var descendantsOnPage = parentPage?.VisibleDescendants();
if (parentPage is IShellController shell)
{
descendantsOnPage = shell.GetItems();
}
if (descendantsOnPage == null)
{
return(empty);
}
var childrenWithTabStop = new List <ITabStopElement>();
foreach (var descendant in descendantsOnPage)
{
if (descendant is ITabStopElement visualElement && IsTabStop(descendant))
{
childrenWithTabStop.Add(visualElement);
}
}
countChildrenWithTabStopWithoutThis = childrenWithTabStop.Count - 1;
return(childrenWithTabStop.GroupToDictionary(c => c.TabIndex));
}
