private bool TriggerSignatureHelp()
{
//the caret must be in a non-projection location
SnapshotPoint?caretPoint = TextView.Caret.Position.Point.GetPoint(
textBuffer => (!textBuffer.ContentType.IsOfType("projection")),
PositionAffinity.Predecessor);
if (!caretPoint.HasValue)
{
return(false);
}
var currentDispatcher = Dispatcher.CurrentDispatcher;
var newSession = Provider.SignatureHelpBroker.CreateSignatureHelpSession(
TextView,
caretPoint.Value.Snapshot.CreateTrackingPoint(caretPoint.Value.Position, PointTrackingMode.Positive),
true);
JavaSignatureHelpSessionSignatures precomputedSignatures = new JavaSignatureHelpSessionSignatures(Provider, caretPoint.Value.Snapshot.TextBuffer);
precomputedSignatures.CollectSignatureLists(newSession).ContinueWith((System.Threading.Tasks.Task t) =>
{
// Only attempt to start a ParamHelp operation if we have results to show and the session wasn't dismissed while doing work on the background
if (precomputedSignatures.Signatures != null && precomputedSignatures.Signatures.Count() != 0 && !newSession.IsDismissed)
{
newSession.Properties.AddProperty(typeof(JavaSignatureHelpSessionSignatures), precomputedSignatures);
currentDispatcher.Invoke(() =>
{
newSession.Start();
newSession.Dismissed += SignatureSession_Dismissed;
SignatureSession = newSession;
});
}
});
return(true);
}
private bool TriggerSignatureHelp()
{
//the caret must be in a non-projection location
SnapshotPoint? caretPoint = TextView.Caret.Position.Point.GetPoint(
textBuffer => (!textBuffer.ContentType.IsOfType("projection")),
PositionAffinity.Predecessor);
if (!caretPoint.HasValue)
{
return false;
}
var currentDispatcher = Dispatcher.CurrentDispatcher;
var newSession = Provider.SignatureHelpBroker.CreateSignatureHelpSession(
TextView,
caretPoint.Value.Snapshot.CreateTrackingPoint(caretPoint.Value.Position, PointTrackingMode.Positive),
true);
JavaSignatureHelpSessionSignatures precomputedSignatures = new JavaSignatureHelpSessionSignatures(Provider, caretPoint.Value.Snapshot.TextBuffer);
precomputedSignatures.CollectSignatureLists(newSession).ContinueWith((System.Threading.Tasks.Task t) =>
{
// Only attempt to start a ParamHelp operation if we have results to show and the session wasn't dismissed while doing work on the background
if (precomputedSignatures.Signatures != null && precomputedSignatures.Signatures.Count() != 0 && !newSession.IsDismissed)
{
newSession.Properties.AddProperty(typeof(JavaSignatureHelpSessionSignatures), precomputedSignatures);
currentDispatcher.Invoke(() =>
{
newSession.Start();
newSession.Dismissed += SignatureSession_Dismissed;
SignatureSession = newSession;
});
}
});
return true;
}
