public void AugmentCompletionSession(ICompletionSession session, IList <CompletionSet> completionSets)
{
JavaSessionCompletions sessionCompletions = null;
if (session.Properties.TryGetProperty <JavaSessionCompletions>(typeof(JavaSessionCompletions), out sessionCompletions))
{
foreach (var set in sessionCompletions.CompletionSetList)
{
completionSets.Add(set);
}
}
}
private bool TriggerCompletion()
{
//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.CompletionBroker.CreateCompletionSession(
TextView,
caretPoint.Value.Snapshot.CreateTrackingPoint(caretPoint.Value.Position, PointTrackingMode.Positive),
true);
JavaSessionCompletions precomputedCompletions = new JavaSessionCompletions(Provider, caretPoint.Value.Snapshot.TextBuffer);
precomputedCompletions.CollectCompletionSets(newSession).ContinueWith((System.Threading.Tasks.Task t) =>
{
// Only attempt to start a completion session if we have results to show and the session wasn't dismissed while doing work on the background
if (precomputedCompletions.CompletionSetList != null && precomputedCompletions.CompletionSetList.Count != 0 && !newSession.IsDismissed)
{
newSession.Properties.AddProperty(typeof(JavaSessionCompletions), precomputedCompletions);
currentDispatcher.Invoke(() =>
{
newSession.Start(); // Note: Start will fail to really start the session if there are no completion results to show
//CompletionSession.Filter();
if (newSession.SelectedCompletionSet != null)
{
newSession.SelectedCompletionSet.SelectBestMatch();
}
//subscribe to the Dismissed event on the session
newSession.Dismissed += AutocompleteSession_Dismissed;
CompletionSession = newSession;
});
}
});
return(true);
}
public int Exec(ref Guid pguidCmdGroup, uint nCmdID, uint nCmdexecopt, IntPtr pvaIn, IntPtr pvaOut)
{
Logger.Exec(pguidCmdGroup, nCmdID);
if (VsShellUtilities.IsInAutomationFunction(Provider.ServiceProvider))
{
return(NextCmdHandler.Exec(ref pguidCmdGroup, nCmdID, nCmdexecopt, pvaIn, pvaOut));
}
uint commandID = nCmdID;
char typedChar = char.MinValue;
//make sure the input is a char before getting it
if (pguidCmdGroup == VSConstants.VSStd2K && nCmdID == (uint)VSConstants.VSStd2KCmdID.TYPECHAR)
{
typedChar = (char)(ushort)Marshal.GetObjectForNativeVariant(pvaIn);
}
while (true)
{
//check for a commit character
if (nCmdID == (uint)VSConstants.VSStd2KCmdID.RETURN ||
nCmdID == (uint)VSConstants.VSStd2KCmdID.TAB ||
(char.IsWhiteSpace(typedChar) ||
JavaSessionCompletions.AutocompleteCommitChars.Contains(typedChar)))
{
if (CompletionSession != null && !CompletionSession.IsDismissed)
{
if (CompletionSession.SelectedCompletionSet.SelectionStatus.IsSelected)
{
// Only commit selection if typedChar is not part of the current selection. This will allow typing . when autocompleting package names without closing ACL
if (CompletionSession.SelectedCompletionSet.SelectionStatus.Completion.InsertionText.Contains(typedChar))
{
break;
}
int adjustCursor = 0;
if (CompletionSession.SelectedCompletionSet.SelectionStatus.Completion.InsertionText.EndsWith(")")) // Eclipse returns functions already appended with (); we'll fix up cursor position post insertion
{
adjustCursor = -1;
}
JavaSessionCompletions sessionCompletions = null;
if (CompletionSession.Properties.TryGetProperty <JavaSessionCompletions>(typeof(JavaSessionCompletions), out sessionCompletions))
{
sessionCompletions.Commit(CompletionSession, typedChar);
}
if (adjustCursor != 0)
{
TextView.Caret.MoveTo(TextView.Caret.Position.BufferPosition.Add(adjustCursor));
if (SignatureSession != null)
{
SignatureSession.Dismiss();
}
TriggerSignatureHelp();
}
Telemetry.Client.Get().TrackTrace(String.Format("ACL Session completed on nCMDID = {0}; typedChar = {1}; adjustCursor = {2}", nCmdID, typedChar, adjustCursor));
if (typedChar == char.MinValue || (typedChar == '(' && adjustCursor != 0))
{
return(VSConstants.S_OK); // don't add the character to the buffer if it's an ENTER, TAB or a open-paran (in the case of a method call)
}
}
else
{
// If no selection, dismiss the session
CompletionSession.Dismiss();
Telemetry.Client.Get().TrackTrace(String.Format("ACL Session dismissed on nCMDID = {0}; typedChar = {1}", nCmdID, typedChar));
}
}
}
break;
}
// Update param help?
if (commandID == (uint)VSConstants.VSStd2KCmdID.LEFT)
{
if (SignatureSession != null)
{
UpdateCurrentParameter(TextView.Caret.Position.BufferPosition.Position - 1);
}
}
else if (commandID == (uint)VSConstants.VSStd2KCmdID.RIGHT)
{
if (SignatureSession != null)
{
UpdateCurrentParameter(TextView.Caret.Position.BufferPosition.Position + 1);
}
}
else if (commandID == (uint)VSConstants.VSStd2KCmdID.BACKSPACE)
{
if (SignatureSession != null)
{
SnapshotPoint?caretPoint = TextView.Caret.Position.Point.GetPoint(
textBuffer => (!textBuffer.ContentType.IsOfType("projection")),
PositionAffinity.Predecessor);
if (caretPoint.HasValue && caretPoint.Value.Position != 0)
{
var deleting = TextView.TextSnapshot.GetText(caretPoint.Value.Position - 1, 1).First();
if (JavaSignatureHelpSessionSignatures.ParamHelpReevaluateTriggers.Contains(deleting))
{
UpdateCurrentParameter(caretPoint.Value.Position - 1);
}
else if (JavaSignatureHelpSessionSignatures.ParamHelpTriggers.Contains(deleting))
{
SignatureSession.Dismiss();
// TODO: May need to launch the nested param help
}
}
}
}
if (commandID == (uint)VSConstants.VSStd97CmdID.GotoDefn)
{
SnapshotPoint?caretPoint = TextView.Caret.Position.Point.GetPoint(
textBuffer => (!textBuffer.ContentType.IsOfType("projection")),
PositionAffinity.Predecessor);
if (caretPoint.HasValue && caretPoint.Value.Position != 0)
{
var fireAndForgetTask = new JavaGotoDefinition(TextView, Provider, caretPoint.Value).Run(Provider.EditorFactory);
}
return(VSConstants.S_OK);
}
// Pass along the command so the char is added to the buffer
int retVal = NextCmdHandler.Exec(ref pguidCmdGroup, nCmdID, nCmdexecopt, pvaIn, pvaOut);
bool handled = false;
// Trigger Param help?
if (JavaSignatureHelpSessionSignatures.ParamHelpTriggers.Contains(typedChar) ||
commandID == (uint)VSConstants.VSStd2KCmdID.PARAMINFO)
{
if (SignatureSession != null)
{
SignatureSession.Dismiss();
}
TriggerSignatureHelp();
Telemetry.Client.Get().TrackTrace(String.Format("ParamHelp Session started on nCMDID = {0}; typedChar = {1}", VSConstants.VSStd2KCmdID.PARAMINFO.ToString(), typedChar));
}
// Comma found while typing -> update paramhelp
else if (JavaSignatureHelpSessionSignatures.ParamHelpReevaluateTriggers.Contains(typedChar))
{
if (SignatureSession != null)
{
UpdateCurrentParameter();
}
}
// End of param help?
else if (JavaSignatureHelpSessionSignatures.ParamHelpEndTrigger.Contains(typedChar))
{
if (SignatureSession != null)
{
SignatureSession.Dismiss();
TriggerSignatureHelp(); // Just in case there is a nested call
Telemetry.Client.Get().TrackTrace(String.Format("ParamHelp Session ended and restarted on nCMDID = {0}; typedChar = {1}", commandID, typedChar));
}
}
else if (commandID == (uint)VSConstants.VSStd2KCmdID.HOME ||
commandID == (uint)VSConstants.VSStd2KCmdID.BOL ||
commandID == (uint)VSConstants.VSStd2KCmdID.BOL_EXT ||
commandID == (uint)VSConstants.VSStd2KCmdID.END ||
commandID == (uint)VSConstants.VSStd2KCmdID.WORDPREV ||
commandID == (uint)VSConstants.VSStd2KCmdID.WORDPREV_EXT ||
commandID == (uint)VSConstants.VSStd2KCmdID.DELETEWORDLEFT)
{
if (SignatureSession != null)
{
SignatureSession.Dismiss();
Telemetry.Client.Get().TrackTrace(String.Format("ParamHelp Session ended on nCMDID = {0}; typedChar = {1}", commandID, typedChar));
}
}
// Trigger autocomplete?
if (JavaSessionCompletions.AutocompleteTriggers.Contains(typedChar))
{
if (CompletionSession == null || CompletionSession.IsDismissed)
{
// If there is no active session, begin one
TriggerCompletion();
Telemetry.Client.Get().TrackTrace(String.Format("ACL Session started on nCMDID = {0}; typedChar = {1}", commandID, typedChar));
}
else
{
CompletionSession.SelectedCompletionSet.SelectBestMatch();
}
handled = true;
}
else if (commandID == (uint)VSConstants.VSStd2KCmdID.COMPLETEWORD ||
commandID == (uint)VSConstants.VSStd2KCmdID.AUTOCOMPLETE)
{
if (CompletionSession != null)
{
CompletionSession.Dismiss();
}
TriggerCompletion();
Telemetry.Client.Get().TrackTrace(String.Format("ACL Session started on nCMDID = {0}; typedChar = {1}", commandID, typedChar));
handled = true;
}
else if (commandID == (uint)VSConstants.VSStd2KCmdID.BACKSPACE ||
commandID == (uint)VSConstants.VSStd2KCmdID.DELETE)
{
// Redo the filter if there is a deletion
if (CompletionSession != null && !CompletionSession.IsDismissed)
{
CompletionSession.SelectedCompletionSet.SelectBestMatch();
}
handled = true;
}
// For any other char, we update the list if a session is already started
else if (!typedChar.Equals(char.MinValue) && char.IsLetterOrDigit(typedChar))
{
if (CompletionSession != null && !CompletionSession.IsDismissed)
{
CompletionSession.SelectedCompletionSet.SelectBestMatch();
}
handled = true;
}
if (handled)
{
return(VSConstants.S_OK);
}
return(retVal);
}
private bool TriggerCompletion()
{
//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.CompletionBroker.CreateCompletionSession(
TextView,
caretPoint.Value.Snapshot.CreateTrackingPoint(caretPoint.Value.Position, PointTrackingMode.Positive),
true);
JavaSessionCompletions precomputedCompletions = new JavaSessionCompletions(Provider, caretPoint.Value.Snapshot.TextBuffer);
precomputedCompletions.CollectCompletionSets(newSession).ContinueWith((System.Threading.Tasks.Task t) =>
{
// Only attempt to start a completion session if we have results to show and the session wasn't dismissed while doing work on the background
if (precomputedCompletions.CompletionSetList != null && precomputedCompletions.CompletionSetList.Count != 0 && !newSession.IsDismissed)
{
newSession.Properties.AddProperty(typeof(JavaSessionCompletions), precomputedCompletions);
currentDispatcher.Invoke(() =>
{
newSession.Start(); // Note: Start will fail to really start the session if there are no completion results to show
//CompletionSession.Filter();
if (newSession.SelectedCompletionSet != null)
newSession.SelectedCompletionSet.SelectBestMatch();
//subscribe to the Dismissed event on the session
newSession.Dismissed += AutocompleteSession_Dismissed;
CompletionSession = newSession;
});
}
});
return true;
}