internal RiskTagger(IClassifier classifier, ITextBuffer buffer, ITextDocumentFactoryService textDocumentFactoryService)
{
try
{
_classifier = classifier;
_buffer = buffer;
_textDocumentFactoryService = textDocumentFactoryService;
_dte = ServiceProvider.GlobalProvider.GetService(typeof(DTE)) as DTE;
ITextDocument document;
_syncContext = SynchronizationContext.Current;
if (!_textDocumentFactoryService.TryGetTextDocument(_buffer, out document))
{
throw new Exception();
}
_document = document;
_filename = document.FilePath.ToLower();
_enabled = _filename.EndsWith(".vb") || _filename.EndsWith(".cs");
if (_enabled)
{
_document.FileActionOccurred += _document_FileActionOccurred;
_buffer.ChangedLowPriority += buffer_ChangedLowPriority;
CodeModelCache.CreateIfNeeded(document, _buffer, _dte);
GetSignatures();
}
}
catch (Exception ex)
{
Logger.Write("RiskTagger::ctor" + ex);
}
}
void _document_FileActionOccurred(object sender, TextDocumentFileActionEventArgs e)
{
try {
if (e.FileActionType == FileActionTypes.DocumentRenamed)
{
var doc = (ITextDocument)sender;
CodeModelCache.CreateIfNeeded((ITextDocument)sender, _buffer, _dte);
_filename = doc.FilePath.ToLower();
CodeModelCache.TryUpdateCache(e.FilePath.ToLower(), RaiseTagsChanged, new NormalizedSnapshotSpanCollection());
}
}
catch (Exception ex)
{
Logger.Write("DocActionOccurred" + ex);
}
}
private void buffer_ChangedLowPriority(object sender, TextContentChangedEventArgs e)
{
try
{
if (_document == null)
{
return;
}
if (_document.FilePath == null)
{
return;
}
CodeModelCache.TryUpdateCache(_document.FilePath.ToLower(), RaiseTagsChanged,
new NormalizedSnapshotSpanCollection());
}
catch (Exception ex)
{
Logger.Write("BufferChangedLowPriority" + ex);
}
}
private void GetSignatures()
{
_signatures = CodeModelCache.GetCodeInfoFor(_document);
}
