public void VsTextViewCreated(IVsTextView textViewAdapter)
{
IWpfTextView textView = EditorAdaptersFactoryService.GetWpfTextView(textViewAdapter);
IVsTextBuffer textBuffer = EditorAdaptersFactoryService.GetBufferAdapter(textView.TextBuffer);
textView.TextBuffer.Properties.TryGetProperty(typeof(ITextDocument), out ITextDocument document);
textViewAdapter.GetBuffer(out var textlines);
if (textlines != null)
{
XFile file = null;
string fileName = FilePathUtilities.GetFilePath(textlines);
textlines.GetLanguageServiceID(out var langId);
// Note that this may get called after the classifier has been instantiated
if (langId == GuidStrings.guidLanguageService) // is our language service active ?
{
// Get XFile and assign it to the TextBuffer
if (!textView.TextBuffer.Properties.TryGetProperty(typeof(XFile), out file))
{
file = XSolution.FindFile(fileName);
if (file == null)
{
XSolution.OrphanedFilesProject.AddFile(fileName);
file = XSolution.FindFile(fileName);
}
if (file != null)
{
textView.TextBuffer.Properties.AddProperty(typeof(XFile), file);
}
}
if (file != null)
{
file.Interactive = true;
textView.Properties.AddProperty(typeof(XFile), file);
}
var filter = new XSharpEditorCommandHandler(textView);
IOleCommandTarget next;
textViewAdapter.AddCommandFilter(filter, out next);
filter.Next = next;
}
// For VS 2017 we look for Microsoft.VisualStudio.Editor.Implementation.VsCodeWindowAdapter
// For VS 2019 we look for Microsoft.VisualStudio.TextManager.Interop.IVsCodeWindow
// Both implement IVsDropdownbarManager
IVsDropdownBarManager dropDownBarManager = null;
if (dropDownBarKey != null && textView.Properties.ContainsProperty(dropDownBarKey))
{
object window = textView.Properties.GetProperty(dropDownBarKey);
dropDownBarManager = window as IVsDropdownBarManager;
}
if (dropDownBarManager == null)
{
// look at all the properties to find the one that implements IVsDropdownBarManager
foreach (var property in textView.Properties.PropertyList)
{
if (property.Value is IVsDropdownBarManager manager)
{
dropDownBarKey = property.Key; // remember key for next iteration
dropDownBarManager = manager;
break;
}
}
}
// The same file may be open in multiple textViews
// these will share the same dropdown
if (_dropDowns.ContainsKey(fileName))
{
dropdown = _dropDowns[fileName];
dropdown.addTextView(textView);
}
else if (dropDownBarManager != null)
{
dropdown = new XSharpDropDownClient(dropDownBarManager, file);
dropDownBarManager.RemoveDropdownBar();
dropDownBarManager.AddDropdownBar(2, dropdown);
_dropDowns.Add(fileName, dropdown);
dropdown.addTextView(textView);
}
if (!_textViews.ContainsKey(fileName))
{
_textViews.Add(fileName, new List <IWpfTextView>());
}
_textViews[fileName].Add(textView);
textView.Closed += TextView_Closed;
}
}