public static CodeCompletionResult GetCompletions(IDocument document, int offset, bool controlSpace)
{
var result = new CodeCompletionResult();
if (String.IsNullOrEmpty(document.FileName))
{
return(result);
}
var completionContext = new CSharpCompletionContext(document, offset, projectContent);
var completionFactory = new CSharpCompletionDataFactory(completionContext.TypeResolveContextAtCaret, completionContext);
var cce = new CSharpCompletionEngine(
completionContext.Document,
completionContext.CompletionContextProvider,
completionFactory,
completionContext.ProjectContent,
completionContext.TypeResolveContextAtCaret
);
cce.EolMarker = Environment.NewLine;
cce.FormattingPolicy = FormattingOptionsFactory.CreateSharpDevelop();
var completionChar = completionContext.Document.GetCharAt(completionContext.Offset - 1);
int startPos, triggerWordLength;
IEnumerable <ICSharpCode.NRefactory.Completion.ICompletionData> completionData;
if (controlSpace)
{
if (!cce.TryGetCompletionWord(completionContext.Offset, out startPos, out triggerWordLength))
{
startPos = completionContext.Offset;
triggerWordLength = 0;
}
completionData = cce.GetCompletionData(startPos, true);
if (triggerWordLength == 0)
{
completionData = completionData.Concat(cce.GetImportCompletionData(startPos));
}
}
else
{
startPos = completionContext.Offset;
if (char.IsLetterOrDigit(completionChar) || completionChar == '_')
{
if (startPos > 1 && char.IsLetterOrDigit(completionContext.Document.GetCharAt(startPos - 2)))
{
return(result);
}
completionData = cce.GetCompletionData(startPos, false);
startPos--;
triggerWordLength = 1;
}
else
{
completionData = cce.GetCompletionData(startPos, false);
triggerWordLength = 0;
}
}
result.TriggerWordLength = triggerWordLength;
result.TriggerWord = completionContext.Document.GetText(completionContext.Offset - triggerWordLength, triggerWordLength);
Debug.Print("Trigger word: '{0}'", result.TriggerWord);
//cast to AvalonEdit completion data and add to results
foreach (var completion in completionData)
{
var cshellCompletionData = completion as CompletionData;
if (cshellCompletionData != null)
{
cshellCompletionData.TriggerWord = result.TriggerWord;
cshellCompletionData.TriggerWordLength = result.TriggerWordLength;
result.CompletionData.Add(cshellCompletionData);
}
}
//method completions
if (!controlSpace)
{
// Method Insight
var pce = new CSharpParameterCompletionEngine(
completionContext.Document,
completionContext.CompletionContextProvider,
completionFactory,
completionContext.ProjectContent,
completionContext.TypeResolveContextAtCaret
);
var parameterDataProvider = pce.GetParameterDataProvider(completionContext.Offset, completionChar);
result.OverloadProvider = parameterDataProvider as IOverloadProvider;
}
return(result);
}
bool ShowCompletion(ITextEditor editor, char completionChar, bool ctrlSpace)
{
CSharpCompletionContext completionContext;
if (fileContent == null)
{
completionContext = CSharpCompletionContext.Get(editor);
}
else
{
completionContext = CSharpCompletionContext.Get(editor, context, currentLocation, fileContent);
}
if (completionContext == null)
{
return(false);
}
int caretOffset;
if (fileContent == null)
{
caretOffset = editor.Caret.Offset;
currentLocation = editor.Caret.Location;
}
else
{
caretOffset = completionContext.Document.GetOffset(currentLocation);
}
var completionFactory = new CSharpCompletionDataFactory(completionContext, new CSharpResolver(completionContext.TypeResolveContextAtCaret));
CSharpCompletionEngine cce = new CSharpCompletionEngine(
completionContext.Document,
completionContext.CompletionContextProvider,
completionFactory,
completionContext.ProjectContent,
completionContext.TypeResolveContextAtCaret
);
var formattingOptions = CSharpFormattingPolicies.Instance.GetProjectOptions(completionContext.Compilation.GetProject());
cce.FormattingPolicy = formattingOptions.OptionsContainer.GetEffectiveOptions();
cce.EolMarker = DocumentUtilities.GetLineTerminator(completionContext.Document, currentLocation.Line);
cce.IndentString = editor.Options.IndentationString;
int startPos, triggerWordLength;
IEnumerable <ICompletionData> completionData;
if (ctrlSpace)
{
if (!cce.TryGetCompletionWord(caretOffset, out startPos, out triggerWordLength))
{
startPos = caretOffset;
triggerWordLength = 0;
}
completionData = cce.GetCompletionData(startPos, true);
completionData = completionData.Concat(cce.GetImportCompletionData(startPos));
}
else
{
startPos = caretOffset;
if (char.IsLetterOrDigit(completionChar) || completionChar == '_')
{
if (startPos > 1 && char.IsLetterOrDigit(completionContext.Document.GetCharAt(startPos - 2)))
{
return(false);
}
completionData = cce.GetCompletionData(startPos, false);
startPos--;
triggerWordLength = 1;
}
else
{
completionData = cce.GetCompletionData(startPos, false);
triggerWordLength = 0;
}
}
DefaultCompletionItemList list = new DefaultCompletionItemList();
list.Items.AddRange(FilterAndAddTemplates(editor, completionData.Cast <ICompletionItem>().ToList()));
if (list.Items.Count > 0 && (ctrlSpace || cce.AutoCompleteEmptyMatch))
{
list.SortItems();
list.PreselectionLength = caretOffset - startPos;
list.PostselectionLength = Math.Max(0, startPos + triggerWordLength - caretOffset);
list.SuggestedItem = list.Items.FirstOrDefault(i => i.Text == cce.DefaultCompletionString);
editor.ShowCompletionWindow(list);
return(true);
}
if (!ctrlSpace)
{
// Method Insight
var pce = new CSharpParameterCompletionEngine(
completionContext.Document,
completionContext.CompletionContextProvider,
completionFactory,
completionContext.ProjectContent,
completionContext.TypeResolveContextAtCaret
);
var newInsight = pce.GetParameterDataProvider(caretOffset, completionChar) as CSharpMethodInsight;
if (newInsight != null && newInsight.items.Count > 0)
{
newInsight.UpdateHighlightedParameter(pce);
newInsight.Show();
return(true);
}
}
return(false);
}