private void CloseCodeCompletionWindow(object sender, EventArgs e)
{
_codeCompletionWindow = null;
}
private void ShowIntellisense(char keyValue, int wordLengthLimit)
{
if (_completionDataProvider == null)
{
return;
}
if (ActiveTextAreaControl.SelectionManager.HasSomethingSelected)
{
return;
}
var caretPosition = ActiveTextAreaControl.Caret;
var line = Document.GetLineSegment(caretPosition.Line);
var word = line.GetWord(caretPosition.Column - 1);
var wordType = (word as AsmWord)?.WordType;
if (wordType == AsmWord.AsmWordType.Comment)
{
if (_codeCompletionWindow != null)
{
_codeCompletionWindow.Close();
}
return;
}
if (wordType == AsmWord.AsmWordType.Opcode && wordLengthLimit > 0 && !_forcedAutoCompleteWindow)
{
if (_codeCompletionWindow != null)
{
_codeCompletionWindow.Close();
}
return;
}
if ((wordType == AsmWord.AsmWordType.NumberByte || wordType == AsmWord.AsmWordType.NumberWord) && wordLengthLimit > 0 && !_forcedAutoCompleteWindow)
{
if (_codeCompletionWindow != null)
{
_codeCompletionWindow.Close();
}
return;
}
if (word.Word.Trim().Length < wordLengthLimit)
{
if ((word.IsWhiteSpace || string.IsNullOrWhiteSpace(word.Word)) && !_forcedAutoCompleteWindow && _codeCompletionWindow != null)
{
_codeCompletionWindow.Close();
}
return;
}
var provider = _completionDataProvider;
if (IsIncludeLine(line) && caretPosition.Column > 0)
{
// Auto-complete file names for include statements
var fullLine = Document.GetText(line);
var stringStart = fullLine.LastIndexOf("\"", caretPosition.Column - 1);
if (stringStart > 0 && stringStart == fullLine.IndexOf("\""))
{
// Open file completion if caret is after the first " of the line
provider = _fileCompletionDataProvider;
provider.PreSelection = fullLine.Substring(stringStart, caretPosition.Column - stringStart);
}
}
if (provider == _completionDataProvider)
{
// Regular auto-complete for symbols
if (word.Offset + word.Length != caretPosition.Column)
{
if (_codeCompletionWindow != null)
{
_codeCompletionWindow.Close();
}
return;
}
provider.PreSelection = word.Word;
}
if (_codeCompletionWindow != null)
{
_codeCompletionWindow.RefreshCompletionData(File.File.FullName, keyValue);
return;
}
try
{
_codeCompletionWindow = CompletionWindow.ShowCompletionWindow(
ParentForm, // The parent window for the completion window
this, // The text editor to show the window for
File.File.FullName, // Filename - will be passed back to the provider
provider, // Provider to get the list of possible completions
keyValue // Key pressed - will be passed to the provider
);
}
catch (ArgumentOutOfRangeException)
{
_codeCompletionWindow = null;
}
if (_codeCompletionWindow != null) // ShowCompletionWindow can return null when the provider returns an empty list
{
_codeCompletionWindow.CloseWhenCaretAtBeginning = false;
_codeCompletionWindow.Closed += CloseCodeCompletionWindow;
}
}