internal int Unregister(IVsDropdownBarManager manager)
{
_textView.Caret.PositionChanged -= CaretPositionChanged;
// A buffer may have multiple DropDownBarClients, given one may open multiple CodeWindows
// over a single buffer using Window/New Window
List <DropDownBarClient> clients;
if (_textView.Properties.TryGetProperty(typeof(DropDownBarClient), out clients))
{
clients.Remove(this);
if (clients.Count == 0)
{
_textView.Properties.RemoveProperty(typeof(DropDownBarClient));
}
}
foreach (var tb in PythonTextBufferInfo.GetAllFromView(_textView))
{
tb.RemoveSink(this);
}
#if DEBUG
IVsDropdownBar existing;
IVsDropdownBarClient existingClient;
if (ErrorHandler.Succeeded(manager.GetDropdownBar(out existing)) &&
ErrorHandler.Succeeded(existing.GetClient(out existingClient)))
{
Debug.Assert(existingClient == this, "Unregistering the wrong dropdown client");
}
#endif
return(manager.RemoveDropdownBar());
}
public DropDownBarClient(IServiceProvider serviceProvider, ITextView textView)
{
Utilities.ArgumentNotNull(nameof(serviceProvider), serviceProvider);
Utilities.ArgumentNotNull(nameof(textView), textView);
_serviceProvider = serviceProvider;
_uiThread = _serviceProvider.GetUIThread();
_services = _serviceProvider.GetComponentModel().GetService <PythonEditorServices>();
_textView = textView;
_dispatcher = Dispatcher.CurrentDispatcher;
_textView.Caret.PositionChanged += CaretPositionChanged;
foreach (var tb in PythonTextBufferInfo.GetAllFromView(textView))
{
tb.AddSink(this, this);
}
textView.BufferGraph.GraphBuffersChanged += BufferGraph_GraphBuffersChanged;
for (int i = 0; i < NavigationLevels; i++)
{
_curSelection[i] = -1;
}
}