public static CompletionSelection Create(CompletionContext context, Action onComplete)
{
try
{
return new CompletionSelection(context, onComplete);
}
catch(System.Exception )
{
return null;
}
}
private CompletionSelection(CompletionContext context, Action onComplete)
{
_context = context;
_onComplete = onComplete;
ResultSet results = _context.ResultProvider.GetResults(_context.Path.Str, _context.Line, _context.Column, this);
if (results == null)
throw new System.Exception();
_completionWindow = new CompletionWindow(_context.TextArea);
foreach (IResult cd in results.Results)
{
_completionWindow.CompletionList.CompletionData.Add(cd);
}
_completionWindow.StartOffset = _context.Offset;
_completionWindow.EndOffset = _completionWindow.StartOffset + _context.TriggerWord.Length;
if (_context.TriggerWord.Length > 0)
{
_completionWindow.CompletionList.SelectItem(_context.TriggerWord);
if(_completionWindow.CompletionList.SelectedItem == null) //nothing to display
{
_completionWindow = null;
_onComplete();
;return;
}
}
_completionWindow.Show();
_completionWindow.Closed += (o, args) =>
{
_completionWindow = null;
_onComplete();
};
}
/// <summary>
///
/// </summary>
/// <param name="file"></param>
/// <param name="triggerWord">Initial text to be selected in the completion window. line and col should point to the start of this word</param>
/// <param name="line"></param>
/// <param name="col"></param>
public void BeginSelection(int offset)
{
if (_currentSelection != null) return;
string triggerWord = ExtractTriggerWord(offset, out offset);
int line, col;
if (!_sourceDoc.GetLineAndColumnForOffset(offset, out line, out col))
return;
CompletionContext context = new CompletionContext
{
Line = line,
Column = col,
Offset = offset,
Path = _sourceDoc.File.Path,
ResultProvider = _resulsProvider,
TextArea = _textArea,
TriggerWord = triggerWord,
Callback = delegate(LibClang.CodeCompletion.Result selection, ISegment completionSegment, EventArgs insertionRequestEventArgs)
{
int caretLoc;
int startOffset = completionSegment.Offset;
string s = GetInsertionText(selection, insertionRequestEventArgs, out caretLoc);
_textArea.Document.Replace(completionSegment, s);
if (caretLoc != -1)
{
_textArea.Caret.Offset = startOffset + caretLoc;
}
}
};
_currentSelection = CompletionSelection.Create(context, delegate { _currentSelection = null; });
}