public void Refresh()
{
_item = _items[_selectedIndex];
var headerPanel = new WrapPanel
{
Orientation = Orientation.Horizontal,
Children =
{
ToTextBlock(_item.PrefixDisplayParts),
}
};
var contentPanel = new StackPanel();
var docText = _item.DocumentationFactory(CancellationToken.None).ToTextBlock();
if (docText != null && docText.Inlines.Count > 0)
{
contentPanel.Children.Add(docText);
}
if (!_item.Parameters.IsDefault)
{
for (var index = 0; index < _item.Parameters.Length; index++)
{
var param = _item.Parameters[index];
AddParameterSignatureHelp(index, param, headerPanel, contentPanel);
}
}
headerPanel.Children.Add(ToTextBlock(_item.SuffixDisplayParts));
CurrentHeader = headerPanel;
CurrentContent = contentPanel;
}
private static SignatureHelpItem GetBestItem(SignatureHelpItem currentItem, ICollection <SignatureHelpItem> filteredItems, int argumentCount, string name, bool isCaseSensitive)
{
while (true)
{
// If the current item is still applicable, then just keep it.
if (filteredItems.Contains(currentItem) && IsApplicable(currentItem, argumentCount, name, isCaseSensitive))
{
return(currentItem);
}
// Try to find the first applicable item. If there is none, then that means the
// selected parameter was outside the bounds of all methods. i.e. all methods only
// went up to 3 parameters, and selected parameter is 3 or higher. In that case,
// just pick the very last item as it is closest in parameter count.
var result = filteredItems.FirstOrDefault(i => IsApplicable(i, argumentCount, name, isCaseSensitive));
if (result != null)
{
return(result);
}
// if we couldn't find a best item, and they provided a name, then try again without
// a name.
if (name != null)
{
name = null;
continue;
}
// If we don't have an item that can take that number of parameters, then just pick
// the last item. Or stick with the current item if the last item isn't any better.
var lastItem = filteredItems.Last();
if (currentItem.IsVariadic || currentItem.Parameters.Length == lastItem.Parameters.Length)
{
return(currentItem);
}
return(lastItem);
}
}
public SignatureHelpSelection(SignatureHelpItem selectedItem, bool userSelected, int?selectedParameter)
{
SelectedItem = selectedItem;
UserSelected = userSelected;
SelectedParameter = selectedParameter;
}
