private static void StatusTextPropertyChangedCallback(DependencyObject target, DependencyPropertyChangedEventArgs eventArgs)
{
var textBlock = (StatusTextBlock)target;
textBlock.Inlines.Clear();
string newValue = eventArgs.NewValue as string;
if (newValue != null)
{
textBlock.Inlines.AddRange(StatusTextBlock.GenerateInlinesFromRawEntryText(newValue));
}
}
internal static IEnumerable <Inline> GenerateInlinesFromRawEntryText(string entryText)
{
int startIndex = 0;
Match match = StatusTextBlock.s_uriMatchingRegex.Match(entryText);
while (match.Success)
{
if (startIndex != match.Index)
{
yield return(new Run(StatusTextBlock.DecodeStatusEntryText(entryText.Substring(startIndex, match.Index - startIndex))));
}
Hyperlink hyperLink = new Hyperlink(new Run(match.Value));
hyperLink.TextDecorations = null;
hyperLink.MouseMove += new System.Windows.Input.MouseEventHandler(hyperLink_MouseMove);
hyperLink.MouseLeave += new System.Windows.Input.MouseEventHandler(hyperLink_MouseLeave);
string uri = match.Value;
if (match.Groups["emailAddress"].Success)
{
uri = "mailto:" + uri;
}
else if (match.Groups["toTwitterScreenName"].Success)
{
uri = "http://twitter.com/" + uri.Substring(1);
}
hyperLink.NavigateUri = new Uri(uri);
hyperLink.RequestNavigate += new System.Windows.Navigation.RequestNavigateEventHandler(hyperLink_RequestNavigate);
yield return(hyperLink);
startIndex = match.Index + match.Length;
match = match.NextMatch();
}
if (startIndex != entryText.Length)
{
yield return(new Run(StatusTextBlock.DecodeStatusEntryText(entryText.Substring(startIndex))));
}
}