public override void Dismiss()
{
if (!_isDismissed)
{
// Stop listening to the caret movement event
if (_trackCaret)
{
base.textView.Caret.PositionChanged -= new EventHandler <CaretPositionChangedEventArgs>(OnCaretPositionChanged);
}
_isDismissed = true;
// Fire the "Dismissed" event. This will signal consumers (namely, the session stack) to release pointers to this
// session and let us die a peaceful death of garbage collection
base.RaiseDismissed();
// Now that we're dismissed, there's no reason to hang-on to the rest of this stuff.
_componentContext = null;
_activeSignatures = null;
_readOnlySignatures = null;
_selectedSignature = null;
base.Dismiss();
}
}
public SignatureHelpSession(SignatureHelpBroker componentContext,
ITextView textView,
ITrackingPoint triggerPoint,
bool trackCaret)
: base(textView, triggerPoint)
{
_componentContext = componentContext;
// If we were asked to track the caret, go ahead and subscribe to the event that tracks its movement.
_trackCaret = trackCaret;
if (_trackCaret)
{
base.textView.Caret.PositionChanged += new EventHandler <CaretPositionChangedEventArgs>(OnCaretPositionChanged);
}
}