#pragma warning restore CS0649
#endregion
/// <summary>
/// Factory function for a CBETagger instance.
/// Used by VS to create the tagger
/// </summary>
public ITagger <T> CreateTagger <T>(ITextView textView, ITextBuffer buffer) where T : ITag
{
// provide the tag only on the top-level buffer
if (textView.TextBuffer != buffer)
{
return(null);
}
// Check if content type (language) is supported and active for tagging
var type = textView.TextBuffer.ContentType;
if (!CBETagPackage.IsLanguageSupported(type.TypeName))
{
return(null);
}
// only works with IWpfTextView
if (textView is IWpfTextView wpfTextView)
{
// return new instance of CBETagger
return(new CBETagger(this, wpfTextView) as ITagger <T>);
}
else
{
return(null);
}
}
IEnumerable <ITagSpan <IntraTextAdornmentTag> > ITagger <IntraTextAdornmentTag> .GetTags(NormalizedSnapshotSpanCollection spans)
{
// Check if content type (language) is supported and active for tagging
if (CBETagPackage.IsLanguageSupported(_TextView.TextBuffer.ContentType.TypeName))
{
// Second chance to hook up events
InitializePackage();
foreach (var span in spans)
{
var tags = GetTags(span);
foreach (var tag in tags)
{
yield return(tag);
}
}
}
}