public void Init()
{
HostCallback.GetCurrentProjectContent = delegate {
return ParserService.CurrentProjectContent;
};
ef = new VBNetExpressionFinder(null);
}
public CodeCompletionKeyPressResult HandleKeyPress(ITextEditor editor, char ch)
{
if (IsInComment(editor) || IsInString(editor))
return CodeCompletionKeyPressResult.None;
if (editor.SelectionLength > 0) {
// allow code completion when overwriting an identifier
int endOffset = editor.SelectionStart + editor.SelectionLength;
// but block code completion when overwriting only part of an identifier
if (endOffset < editor.Document.TextLength && char.IsLetterOrDigit(editor.Document.GetCharAt(endOffset)))
return CodeCompletionKeyPressResult.None;
editor.Document.Remove(editor.SelectionStart, editor.SelectionLength);
}
VBNetExpressionFinder ef = new VBNetExpressionFinder(ParserService.GetParseInformation(editor.FileName));
ExpressionResult result;
switch (ch) {
case '(':
if (CodeCompletionOptions.InsightEnabled) {
IInsightWindow insightWindow = editor.ShowInsightWindow(new MethodInsightProvider().ProvideInsight(editor));
if (insightWindow != null) {
insightHandler.InitializeOpenedInsightWindow(editor, insightWindow);
insightHandler.HighlightParameter(insightWindow, 0);
insightWindow.CaretPositionChanged += delegate { Run(insightWindow, editor); };
}
return CodeCompletionKeyPressResult.Completed;
}
break;
case ',':
if (CodeCompletionOptions.InsightRefreshOnComma && CodeCompletionOptions.InsightEnabled) {
IInsightWindow insightWindow;
editor.Document.Insert(editor.Caret.Offset, ",");
if (insightHandler.InsightRefreshOnComma(editor, ch, out insightWindow)) {
if (insightWindow != null) {
insightHandler.HighlightParameter(insightWindow, GetArgumentIndex(editor) + 1);
insightWindow.CaretPositionChanged += delegate { Run(insightWindow, editor); };;
}
}
return CodeCompletionKeyPressResult.EatKey;
}
break;
case '\n':
TryDeclarationTypeInference(editor, editor.Document.GetLineForOffset(editor.Caret.Offset));
break;
case '.':
string w = editor.GetWordBeforeCaret(); int index = w.IndexOf('.');
if (index > -1 && w.Length - index == 2)
index = editor.Caret.Offset - 2;
else
index = editor.Caret.Offset;
result = ef.FindExpression(editor.Document.Text, index);
LoggingService.Debug("CC: After dot, result=" + result + ", context=" + result.Context);
ShowCompletion(result, editor, ch);
return CodeCompletionKeyPressResult.Completed;
case '@':
if (editor.Caret.Offset > 0 && editor.Document.GetCharAt(editor.Caret.Offset - 1) == '.')
return CodeCompletionKeyPressResult.None;
goto default;
case ' ':
editor.Document.Insert(editor.Caret.Offset, " ");
result = ef.FindExpression(editor.Document.Text, editor.Caret.Offset);
string word = editor.GetWordBeforeCaret().Trim();
if (word.Equals("overrides", StringComparison.OrdinalIgnoreCase) || word.Equals("return", StringComparison.OrdinalIgnoreCase) || !LiteralMayFollow((BitArray)result.Tag) && !OperatorMayFollow((BitArray)result.Tag) && ExpressionContext.IdentifierExpected != result.Context) {
LoggingService.Debug("CC: After space, result=" + result + ", context=" + result.Context);
ShowCompletion(result, editor, ch);
}
return CodeCompletionKeyPressResult.EatKey;
default:
if (CodeCompletionOptions.CompleteWhenTyping) {
int cursor = editor.Caret.Offset;
char prevChar = cursor > 1 ? editor.Document.GetCharAt(cursor - 1) : ' ';
char ppChar = cursor > 2 ? editor.Document.GetCharAt(cursor - 2) : ' ';
result = ef.FindExpression(editor.Document.Text, cursor);
if ((result.Context != ExpressionContext.IdentifierExpected && char.IsLetter(ch)) &&
(!char.IsLetterOrDigit(prevChar) && prevChar != '.')) {
if (prevChar == '@' && ppChar == '.')
return CodeCompletionKeyPressResult.None;
if (IsTypeCharacter(ch, prevChar))
return CodeCompletionKeyPressResult.None;
LoggingService.Debug("CC: Beginning to type a word, result=" + result + ", context=" + result.Context);
ShowCompletion(result, editor, ch);
return CodeCompletionKeyPressResult.CompletedIncludeKeyInCompletion;
}
}
break;
}
return CodeCompletionKeyPressResult.None;
}
public bool CtrlSpace(ITextEditor editor)
{
if (IsInComment(editor))
return false;
if (editor.SelectionLength > 0) {
// allow code completion when overwriting an identifier
int endOffset = editor.SelectionStart + editor.SelectionLength;
// but block code completion when overwriting only part of an identifier
if (endOffset < editor.Document.TextLength && char.IsLetterOrDigit(editor.Document.GetCharAt(endOffset)))
return false;
editor.Document.Remove(editor.SelectionStart, editor.SelectionLength);
}
int cursor = editor.Caret.Offset;
char prevChar = cursor > 1 ? editor.Document.GetCharAt(cursor - 1) : ' ';
bool afterUnderscore = prevChar == '_';
if (afterUnderscore) {
cursor--;
prevChar = cursor > 1 ? editor.Document.GetCharAt(cursor - 1) : ' ';
}
VBNetExpressionFinder ef = new VBNetExpressionFinder(ParserService.GetParseInformation(editor.FileName));
ExpressionResult result = ef.FindExpression(editor.Document.Text, cursor);
LoggingService.Debug("CC: Beginning to type a word, result=" + result + ", context=" + result.Context);
ShowCompletion(result, editor, '\0');
return true;
}
