protected override int GetDataTipTextImpl(TextSpan[] pSpan, AbstractLanguageService <TPackage, TLanguageService> .VsLanguageDebugInfo debugInfo, out string pbstrText)
{
var textViewModel = WpfTextView.TextViewModel;
if (textViewModel == null)
{
Debug.Assert(WpfTextView.IsClosed);
pbstrText = null;
return(VSConstants.E_FAIL);
}
// We need to map the TextSpan from the DataBuffer to our subject buffer.
var span = textViewModel.DataBuffer.CurrentSnapshot.GetSpan(pSpan[0]);
var subjectSpans = WpfTextView.BufferGraph.MapDownToBuffer(span, SpanTrackingMode.EdgeInclusive, _subjectBuffer);
// The following loop addresses the case where the position is on a seam and maps to multiple source spans.
// In these cases, we assume it's okay to return the first span that successfully returns a DataTip.
// It's most likely that either only one will succeed or both with fail.
var expectedSpanLength = span.Length;
foreach (var candidateSpan in subjectSpans)
{
// First, we'll only consider spans whose length matches our input span.
if (candidateSpan.Length != expectedSpanLength)
{
continue;
}
// Next, we'll check to see if there is actually a DataTip for this candidate.
// If there is, we'll map this span back to the DataBuffer and return it.
pSpan[0] = candidateSpan.ToVsTextSpan();
var hr = base.GetDataTipTextImpl(_subjectBuffer, pSpan, debugInfo, out pbstrText);
if (ErrorHandler.Succeeded(hr))
{
var subjectSpan = _subjectBuffer.CurrentSnapshot.GetSpan(pSpan[0]);
// When mapping back up to the surface buffer, if we get more than one span,
// take the span that intersects with the input span, since that's probably
// the one we care about.
// If there are no such spans, just return.
var surfaceSpan = WpfTextView.BufferGraph.MapUpToBuffer(subjectSpan, SpanTrackingMode.EdgeInclusive, textViewModel.DataBuffer)
.SingleOrDefault(x => x.IntersectsWith(span));
if (surfaceSpan == default)
{
pbstrText = null;
return(VSConstants.E_FAIL);
}
// pSpan is an in/out parameter
pSpan[0] = surfaceSpan.ToVsTextSpan();
return(hr);
}
}
pbstrText = null;
return(VSConstants.E_FAIL);
}
protected AbstractVsTextViewFilter(
AbstractLanguageService <TPackage, TLanguageService> languageService,
IWpfTextView wpfTextView,
IVsEditorAdaptersFactoryService editorAdaptersFactoryService)
: base(wpfTextView, editorAdaptersFactoryService, languageService.SystemServiceProvider)
{
LanguageService = languageService;
}
protected AbstractVsTextViewFilter(
AbstractLanguageService <TPackage, TLanguageService, TProject> languageService,
IWpfTextView wpfTextView,
IVsEditorAdaptersFactoryService editorAdaptersFactoryService,
ICommandHandlerServiceFactory commandHandlerServiceFactory)
: base(wpfTextView, commandHandlerServiceFactory, editorAdaptersFactoryService, languageService.SystemServiceProvider)
{
_languageService = languageService;
}
public DebuggerIntelliSenseFilter(
AbstractLanguageService <TPackage, TLanguageService> languageService,
IWpfTextView wpfTextView,
IVsEditorAdaptersFactoryService adapterFactory,
IFeatureServiceFactory featureServiceFactory)
: base(languageService, wpfTextView, adapterFactory)
{
_featureServiceFactory = featureServiceFactory;
}
public DebuggerIntelliSenseFilter(
AbstractLanguageService <TPackage, TLanguageService, TProject> languageService,
IWpfTextView wpfTextView,
IVsEditorAdaptersFactoryService adapterFactory,
ICommandHandlerServiceFactory commandFactory)
: base(languageService, wpfTextView, adapterFactory, commandFactory)
{
_wpfTextView = wpfTextView;
_commandFactory = commandFactory;
}
protected virtual int GetDataTipTextImpl(TextSpan[] pSpan, AbstractLanguageService <TPackage, TLanguageService> .VsLanguageDebugInfo debugInfo, out string pbstrText)
{
var subjectBuffer = WpfTextView.GetBufferContainingCaret();
if (subjectBuffer == null)
{
pbstrText = null;
return(VSConstants.E_FAIL);
}
return(GetDataTipTextImpl(subjectBuffer, pSpan, debugInfo, out pbstrText));
}
protected int GetDataTipTextImpl(ITextBuffer subjectBuffer, TextSpan[] pSpan, AbstractLanguageService <TPackage, TLanguageService> .VsLanguageDebugInfo debugInfo, out string pbstrText)
{
pbstrText = null;
var vsBuffer = EditorAdaptersFactory.GetBufferAdapter(subjectBuffer);
// TODO: broken in REPL
if (vsBuffer == null)
{
return(VSConstants.E_FAIL);
}
return(debugInfo.GetDataTipText(vsBuffer, pSpan, out pbstrText));
}
