protected override ITaggerEventSource CreateEventSource(ITextView textViewOpt, ITextBuffer subjectBuffer)
{
return(TaggerEventSources.Compose(
TaggerEventSources.OnSemanticChanged(subjectBuffer, TaggerDelay.Short, _semanticChangeNotificationService),
TaggerEventSources.OnDocumentActiveContextChanged(subjectBuffer, TaggerDelay.Short),
TaggerEventSources.OnTextChanged(subjectBuffer, TaggerDelay.Short, reportChangedSpans: true)));
}
protected override ITaggerEventSource CreateEventSource(ITextView textView, ITextBuffer subjectBuffer)
{
// Note: we don't listen for OnTextChanged. Text changes to this buffer will get
// reported by OnSemanticChanged.
return(TaggerEventSources.Compose(
TaggerEventSources.OnCaretPositionChanged(textView, textView.TextBuffer, TaggerDelay.Short),
TaggerEventSources.OnSemanticChanged(subjectBuffer, TaggerDelay.OnIdle, _semanticChangeNotificationService)));
}
protected override ITaggerEventSource CreateEventSource(ITextView textViewOpt, ITextBuffer subjectBuffer)
{
// Note: we don't listen for OnTextChanged. Text changes to this this buffer will get
// reported by OnSemanticChanged.
return(TaggerEventSources.Compose(
TaggerEventSources.OnSemanticChanged(subjectBuffer, TaggerDelay.Short, _semanticChangeNotificationService),
TaggerEventSources.OnDocumentActiveContextChanged(subjectBuffer, TaggerDelay.Short)));
}
protected override ITaggerEventSource CreateEventSource(ITextView textView, ITextBuffer subjectBuffer)
{
// PERF: use a longer delay for OnTextChanged to minimize the impact of GCs while typing
return(TaggerEventSources.Compose(
TaggerEventSources.OnTextChanged(subjectBuffer, TaggerDelay.OnIdle),
TaggerEventSources.OnCaretPositionChanged(textView, textView.TextBuffer, TaggerDelay.Short),
TaggerEventSources.OnSemanticChanged(subjectBuffer, TaggerDelay.OnIdle, _semanticChangeNotificationService),
TaggerEventSources.OnDocumentActiveContextChanged(subjectBuffer, TaggerDelay.Short),
TaggerEventSources.OnOptionChanged(subjectBuffer, FeatureOnOffOptions.ReferenceHighlighting, TaggerDelay.NearImmediate)));
}
public Tagger(SemanticClassificationBufferTaggerProvider owner, ITextBuffer subjectBuffer)
{
_owner = owner;
_subjectBuffer = subjectBuffer;
const TaggerDelay Delay = TaggerDelay.Short;
_eventSource = TaggerEventSources.Compose(
TaggerEventSources.OnSemanticChanged(subjectBuffer, Delay, _owner._semanticChangeNotificationService),
TaggerEventSources.OnDocumentActiveContextChanged(subjectBuffer, Delay));
ConnectToEventSource();
}
protected override ITaggerEventSource CreateEventSource(ITextView textView, ITextBuffer subjectBuffer)
{
this.AssertIsForeground();
const TaggerDelay Delay = TaggerDelay.Short;
// Note: we don't listen for OnTextChanged. They'll get reported by the ViewSpan changing
// and also the SemanticChange nodification.
//
// Note: when the user scrolls, we will try to reclassify as soon as possible. That way
// we appear semantically unclassified for a very short amount of time.
return(TaggerEventSources.Compose(
TaggerEventSources.OnViewSpanChanged(textView, textChangeDelay: Delay, scrollChangeDelay: TaggerDelay.NearImmediate),
TaggerEventSources.OnSemanticChanged(subjectBuffer, Delay, _semanticChangeNotificationService)));
}
