public async Task <CompletionResult> GetCompletionData(int position, char?triggerChar)
{
IList <ICompletionDataEx> completionData = null;
IOverloadProvider overloadProvider = null;
bool?isCompletion = null;
if (triggerChar != null)
{
var isSignatureHelp = await _interactiveManager.IsSignatureHelpTriggerCharacter(position - 1).ConfigureAwait(false);
if (isSignatureHelp)
{
var signatureHelp = await _interactiveManager.GetSignatureHelp(
new SignatureHelpTriggerInfo(SignatureHelpTriggerReason.TypeCharCommand, triggerChar.Value), position)
.ConfigureAwait(false);
if (signatureHelp != null)
{
overloadProvider = new RoslynOverloadProvider(signatureHelp);
}
}
else
{
isCompletion = await _interactiveManager.IsCompletionTriggerCharacter(position - 1).ConfigureAwait(false);
}
}
if (overloadProvider == null && isCompletion != false)
{
var items = await _interactiveManager.GetCompletion(
triggerChar != null
?CompletionTriggerInfo.CreateTypeCharTriggerInfo(triggerChar.Value)
: CompletionTriggerInfo.CreateInvokeCompletionTriggerInfo(),
position).ConfigureAwait(false);
completionData = items.Select(item => new AvalonEditCompletionData(item)).ToArray <ICompletionDataEx>();
}
return(new CompletionResult(completionData, overloadProvider));
}
void Editor_MouseHover(object sender, MouseEventArgs e)
{
var pos = Editor.GetPositionFromPoint(e.GetPosition(Editor));
if (pos != null)
{
toolTip.PlacementTarget = this; // required for property inheritance
#region completion
var docLine = Editor.TextArea.Document.Lines[pos.Value.Line - 1];
int startOfWord = TextUtilities.GetNextCaretPosition(Editor.TextArea.Document, docLine.Offset + pos.Value.Column, LogicalDirection.Backward, CaretPositioningMode.WordBorderOrSymbol);
int endOfWord = TextUtilities.GetNextCaretPosition(Editor.TextArea.Document, docLine.Offset + pos.Value.Column, LogicalDirection.Forward,
CaretPositioningMode.WordBorder);
string msg = null;
if (startOfWord < endOfWord && startOfWord >= 0)
{
msg = Editor.TextArea.Document.GetText(startOfWord, endOfWord - startOfWord).Replace(".", "").Trim();
}
if (!string.IsNullOrEmpty(msg))
{
var position = Editor.CaretOffset;
var completions = _interactiveManager.GetCompletion(endOfWord - 1);
if (completions != null)
{
var comp = completions.FirstOrDefault(c => c.DisplayText == msg);
if (comp == null)
{
completions = _interactiveManager.GetCompletion(position);
if (completions != null)
{
comp = completions.FirstOrDefault(c => c.DisplayText == msg);
}
}
if (comp != null)
{
CompletionDescription cd = new CompletionDescription();
cd.DataContext = Roslyn.Compilers.SymbolDisplayExtensions.ToDisplayString(comp.GetDescription());
toolTip.Content = cd;
toolTip.IsOpen = true;
}
}
}
#endregion
#region Folding
int off = Editor.Document.GetOffset(pos.Value.Line, pos.Value.Column);
foreach (var fld in foldingManager.AllFoldings)
{
if (fld.StartOffset <= off && off <= fld.EndOffset && fld.IsFolded)
{
toolTip.PlacementTarget = this;
toolTip.Content = Editor.Document.Text.Substring(fld.StartOffset,
fld.EndOffset - fld.StartOffset);
toolTip.IsOpen = true;
e.Handled = true;
}
}
#endregion
e.Handled = true;
}
}