private CodeCompletionSettings GetCodeCompletionSettingsForPosition(string source, int position, Configuration codeAssistanceConfiguration)
{
var parser = new Parser();
var parseResult = parser.Parse(source);
var filter = GetFilterSegment(parseResult.Tokens, position);
var settings = new CodeCompletionSettings
{
CompletionData = GetCodeCompletionForExpression(parseResult.Tree.FindExpressionAt(position), codeAssistanceConfiguration, source.Substring(filter.Offset, filter.Length)),
IdentifierSegment = filter
};
return settings;
}
/// <summary>
/// Shows completion window for passed functions.
/// </summary>
public void ShowCompletionWindow(CodeCompletionSettings settings)
{
if (settings.CompletionData == null || !settings.CompletionData.Any()) return;
_completionWindow = new CompletionWindow(textEditor.TextArea);
ICompletionData first = null;
foreach (var item in settings.CompletionData)
{
if (first == null) first = item;
_completionWindow.CompletionList.CompletionData.Add(item);
}
_completionWindow.StartOffset = settings.IdentifierSegment.Offset;
_completionWindow.EndOffset = settings.IdentifierSegment.EndOffset;
if (first != null)
{
_completionWindow.CompletionList.SelectedItem = first;
}
_completionWindow.Show();
_completionWindow.Closed += (sender, args) => _completionWindow = null;
_completionWindow.PreviewTextInput += (sender, args) =>
{
if (args.Text == "(" || args.Text == " ")
{
_completionWindow.CompletionList.RequestInsertion(EventArgs.Empty);
}
var c = args.Text[args.Text.Length - 1];
args.Handled = !char.IsLetterOrDigit(c) && c != '_';
};
}