public IEnumerable <ISmartTagAction> GetSmartTagActions(ParseItem item, int position, ITrackingSpan itemTrackingSpan, ITextView view)
{
RuleSet rule = item.FindType <RuleSet>();
if (rule == null || rule.Block == null || !rule.Block.IsValid || UsageRegistry.IsRuleUsed(rule))
{
yield break;
}
yield return(new RemoveCssRuleSmartTagAction(itemTrackingSpan, rule));
}
private void BufferOnPostChanged(object sender, EventArgs eventArgs)
{
var fileName = _buffer.GetFileName();
if (fileName == null)
{
return;
}
var doc = DocumentFactory.GetDocument(fileName);
if (doc == null)
{
return;
}
doc.Reparse(_buffer.CurrentSnapshot.GetText());
UsageRegistry.Resynchronize();
}
public IEnumerable <ITagSpan <IErrorTag> > GetTags(NormalizedSnapshotSpanCollection spans)
{
var fileName = _buffer.GetFileName();
if (fileName == null)
{
return(new ITagSpan <UnusedCssTag> [0]);
}
var doc = DocumentFactory.GetDocument(fileName);
if (doc == null)
{
return(new ITagSpan <UnusedCssTag> [0]);
}
var result = new List <ITagSpan <IErrorTag> >();
using (AmbientRuleContext.GetOrCreate())
{
var applicableRules = UsageRegistry.GetAllUnusedRules(new HashSet <IStylingRule>(doc.Rules));
foreach (var rule in applicableRules)
{
try
{
result.Add(UnusedCssTag.FromRuleSet(_buffer, rule));
}
catch (ArgumentOutOfRangeException)
{
//Sometimes while the document is being modified and retagging is happening, a rule's boundary will momentarily be out of sync with the document and possibly past the end
// this is a condition that may be safely ignored
}
}
}
return(result);
}
