private CodeCompletionKeyPressResult?CompleteSpace(ITextEditor editor, IExpressionFinder ef)
{
CodeCompletionKeyPressResult?returnResult = null;
var documentText = editor.Document.Text;
var position = editor.Caret.Offset - 3;
if (position > 0 && (documentText[position + 1] == '+') && documentText[position + 2] == '=')
{
var result = ef.FindFullExpression(documentText, position);
if (result.Expression != null)
{
var resolveResult = ParserService.Resolve(result, editor.Caret.Line, editor.Caret.Column,
editor.Document.Text, documentText, ProjectContent);
if (resolveResult != null && resolveResult.ResolvedType != null)
{
var underlyingClass = resolveResult.ResolvedType.GetUnderlyingClass();
if (underlyingClass != null &&
underlyingClass.IsTypeInInheritanceTree(
ProjectContent.GetClass("System.MulticastDelegate", 0)))
{
var eventHandlerProvider =
new EventHandlerCompletionItemProvider(result.Expression, resolveResult);
ShowCompletion(eventHandlerProvider, editor, ProjectContent);
returnResult = CodeCompletionKeyPressResult.Completed;
}
}
}
}
return(returnResult);
}
public override CodeCompletionKeyPressResult HandleKeyPress(ITextEditor editor, char ch)
{
CSharpExpressionFinder ef = CreateExpressionFinder(editor.FileName);
int cursor = editor.Caret.Offset;
if (ch == '[')
{
var line = editor.Document.GetLineForOffset(cursor);
/* TODO: AVALONEDIT Reimplement this
* if (TextUtilities.FindPrevWordStart(editor.ActiveTextAreaControl.Document, cursor) <= line.Offset) {
* // [ is first character on the line
* // -> Attribute completion
* editor.ShowCompletionWindow(new AttributesDataProvider(ParserService.CurrentProjectContent), ch);
* return true;
* }*/
}
else if (ch == ',' && CodeCompletionOptions.InsightRefreshOnComma && CodeCompletionOptions.InsightEnabled)
{
IInsightWindow insightWindow;
if (insightHandler.InsightRefreshOnComma(editor, ch, out insightWindow))
{
return(CodeCompletionKeyPressResult.Completed);
}
}
else if (ch == '=')
{
var curLine = editor.Document.GetLineForOffset(cursor);
string documentText = editor.Document.Text;
int position = editor.Caret.Offset - 2;
if (position > 0 && (documentText[position + 1] == '+'))
{
ExpressionResult result = ef.FindFullExpression(documentText, position);
if (result.Expression != null)
{
ResolveResult resolveResult = ParserService.Resolve(result, editor.Caret.Line, editor.Caret.Column, editor.FileName, documentText);
if (resolveResult != null && resolveResult.ResolvedType != null)
{
IClass underlyingClass = resolveResult.ResolvedType.GetUnderlyingClass();
if (underlyingClass != null && underlyingClass.IsTypeInInheritanceTree(ParserService.CurrentProjectContent.GetClass("System.MulticastDelegate", 0)))
{
EventHandlerCompletionItemProvider eventHandlerProvider = new EventHandlerCompletionItemProvider(result.Expression, resolveResult);
eventHandlerProvider.ShowCompletion(editor);
return(CodeCompletionKeyPressResult.Completed);
}
}
}
}
else if (position > 0)
{
ExpressionResult result = ef.FindFullExpression(documentText, position);
if (result.Expression != null)
{
ResolveResult resolveResult = ParserService.Resolve(result, editor.Caret.Line, editor.Caret.Column, editor.FileName, documentText);
if (resolveResult != null && resolveResult.ResolvedType != null)
{
if (ProvideContextCompletion(editor, resolveResult.ResolvedType, ch))
{
return(CodeCompletionKeyPressResult.Completed);
}
}
}
}
}
else if (ch == '.')
{
new CSharpCodeCompletionDataProvider().ShowCompletion(editor);
return(CodeCompletionKeyPressResult.Completed);
}
else if (ch == '>')
{
if (IsInComment(editor))
{
return(CodeCompletionKeyPressResult.None);
}
char prevChar = cursor > 1 ? editor.Document.GetCharAt(cursor - 1) : ' ';
if (prevChar == '-')
{
new PointerArrowCompletionDataProvider().ShowCompletion(editor);
return(CodeCompletionKeyPressResult.Completed);
}
}
if (char.IsLetter(ch) && CodeCompletionOptions.CompleteWhenTyping)
{
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);
// Read caret position again after removal - this is required because the document might change in other
// locations, too (e.g. bound elements in snippets).
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) : ' ';
}
if (!char.IsLetterOrDigit(prevChar) && prevChar != '.' && !IsInComment(editor))
{
ExpressionResult result = ef.FindExpression(editor.Document.Text, cursor);
LoggingService.Debug("CC: Beginning to type a word, result=" + result);
if (result.Context != ExpressionContext.IdentifierExpected)
{
var ctrlSpaceProvider = new NRefactoryCtrlSpaceCompletionItemProvider(LanguageProperties.CSharp, result.Context);
ctrlSpaceProvider.ShowTemplates = true;
ctrlSpaceProvider.AllowCompleteExistingExpression = afterUnderscore;
ctrlSpaceProvider.ShowCompletion(editor);
return(CodeCompletionKeyPressResult.CompletedIncludeKeyInCompletion);
}
}
}
return(base.HandleKeyPress(editor, ch));
}
