public async void ShowParameterInfo(ParameterHintingResult provider, int overload, int _currentParam, int maxSize)
{
if (provider == null)
{
throw new ArgumentNullException("provider");
}
int numParams = System.Math.Max(0, provider [overload].ParameterCount);
var currentParam = System.Math.Min(_currentParam, numParams - 1);
if (numParams > 0 && currentParam < 0)
{
currentParam = 0;
}
if (lastParam == currentParam && (currentTooltipInformation != null) && lastProvider == provider)
{
return;
}
lastProvider = provider;
lastParam = currentParam;
var parameterHintingData = (ParameterHintingData)provider [overload];
ResetTooltipInformation();
if (ext == null)
{
// ext == null means HideParameterInfo was called aka. we are not in valid context to display tooltip anymore
lastParam = -2;
return;
}
var ct = new CancellationTokenSource();
try {
cancellationTokenSource = ct;
currentTooltipInformation = await parameterHintingData.CreateTooltipInformation(ext.Editor, ext.DocumentContext, currentParam, false, ct.Token);
} catch (Exception ex) {
if (!(ex is TaskCanceledException))
{
LoggingService.LogError("Error while getting tooltip information", ex);
}
return;
}
if (ct.IsCancellationRequested)
{
return;
}
cancellationTokenSource = null;
Theme.NumPages = provider.Count;
Theme.CurrentPage = overload;
if (provider.Count > 1)
{
Theme.DrawPager = true;
Theme.PagerVertical = true;
}
ShowTooltipInfo();
}
public override async Task <int> GuessBestMethodOverload(MonoDevelop.Ide.CodeCompletion.ParameterHintingResult provider, int currentOverload, CancellationToken token)
{
var analysisDocument = DocumentContext.AnalysisDocument;
if (analysisDocument == null)
{
return(-1);
}
var result = await ICSharpCode.NRefactory6.CSharp.ParameterUtil.GetCurrentParameterIndex(analysisDocument, provider.ApplicableSpan.Start, Editor.CaretOffset);
var cparam = result.ParameterIndex;
var list = result.UsedNamespaceParameters;
if (cparam > provider [currentOverload].ParameterCount && !provider [currentOverload].IsParameterListAllowed || !HasAllUsedParameters(provider [currentOverload], list))
{
// Look for an overload which has more parameters
int bestOverload = -1;
int bestParamCount = int.MaxValue;
for (int n = 0; n < provider.Count; n++)
{
int pc = provider [n].ParameterCount;
if (pc < bestParamCount && pc >= cparam)
{
if (HasAllUsedParameters(provider [n], list))
{
bestOverload = n;
bestParamCount = pc;
}
}
}
if (bestOverload == -1)
{
for (int n = 0; n < provider.Count; n++)
{
if (provider [n].IsParameterListAllowed && HasAllUsedParameters(provider [n], list))
{
bestOverload = n;
break;
}
}
}
return(bestOverload);
}
return(-1);
}
internal static void ShowWindow(CompletionTextEditorExtension ext, ICompletionWidget widget, CodeCompletionContext ctx, ParameterHintingResult provider)
{
if (provider.Count == 0)
{
return;
}
// There can be several method parameter lists open at the same time, so
// they have to be queued. The last one of queue is the one being shown
// in the information window.
MethodData md = new MethodData();
md.MethodProvider = provider;
md.CurrentOverload = 0;
md.CompletionContext = ctx;
currentMethodGroup = md;
UpdateOverload(ext, widget, default(CancellationToken));
UpdateWindow(ext, widget);
}
