private void OnPostTypeChar(char typedCharacter)
{
// When language autoformats, like JS, caret may be in a very different
// place by now. Check if store caret position still makes sense and
// if not, reacquire it. In contained language scenario
// current caret position may be beyond projection boundary like when
// typing at the end of onclick="return foo(".
if (!MarkdownEditorPackage.Options.EnableTypeThrough)
{
return;
}
char completionCharacter = GetCompletionCharacter(typedCharacter);
if (completionCharacter != '\0')
{
var viewCaretPosition = _textView.Caret.Position.BufferPosition;
_processing = true;
var bufferCaretPosition = GetCaretPositionInBuffer();
if (bufferCaretPosition.HasValue)
{
_caretPosition = bufferCaretPosition.Value;
}
else if (viewCaretPosition.Position == _textView.TextBuffer.CurrentSnapshot.Length)
{
_caretPosition = _textBuffer.CurrentSnapshot.Length;
}
if (_caretPosition > 0)
{
if (CanComplete(_textBuffer, _caretPosition - 1))
{
ProvisionalText.IgnoreChange = true;
_textView.TextBuffer.Replace(new Span(viewCaretPosition, 0), completionCharacter.ToString());
ProvisionalText.IgnoreChange = false;
_textView.Caret.MoveTo(new SnapshotPoint(_textView.TextBuffer.CurrentSnapshot, viewCaretPosition));
var provisionalText = new ProvisionalText(_textView, new Span(viewCaretPosition - 1, 2));
provisionalText.OnClose += OnCloseProvisionalText;
_provisionalTexts.Add(provisionalText);
}
}
}
_processing = false;
}
private ProvisionalText GetInnerProvisionalText()
{
int minLength = Int32.MaxValue;
ProvisionalText innerText = null;
foreach (var pt in _provisionalTexts)
{
if (pt.CurrentSpan.Length < minLength)
{
minLength = pt.CurrentSpan.Length;
innerText = pt;
}
}
return(innerText);
}