private bool IsCaretOutsideItemBounds(
Model model,
SnapshotPoint caretPoint,
CompletionItem item,
Dictionary<TextSpan, string> textSpanToText,
Dictionary<TextSpan, ViewTextSpan> textSpanToViewSpan)
{
// Easy first check. See if the caret point is before the start of the item.
if (!textSpanToViewSpan.TryGetValue(item.Span, out var filterSpanInViewBuffer))
{
filterSpanInViewBuffer = model.GetViewBufferSpan(item.Span);
textSpanToViewSpan[item.Span] = filterSpanInViewBuffer;
}
if (caretPoint < filterSpanInViewBuffer.TextSpan.Start)
{
return true;
}
var textSnapshot = caretPoint.Snapshot;
var currentText = model.GetCurrentTextInSnapshot(item.Span, textSnapshot, textSpanToText);
var currentTextSpan = new TextSpan(filterSpanInViewBuffer.TextSpan.Start, currentText.Length);
return !currentTextSpan.IntersectsWith(caretPoint);
}
private bool CompleteComment()
{
int position = TextView.Caret.Position.BufferPosition.Position;
if (position < 1)
return false;
SnapshotSpan span = new SnapshotSpan(TextView.TextBuffer.CurrentSnapshot, position - 1, 1);
bool isComment = _classifier.GetClassificationSpans(span).Any(c => c.ClassificationType.IsOfType("comment"));
if (isComment)
return false;
char prevChar = TextView.TextBuffer.CurrentSnapshot.ToCharArray(position - 1, 1)[0];
// Abort if the previous characters isn't a forward-slash
if (prevChar != '/' || isComment)
return false;
// Insert the typed character
TextView.TextBuffer.Insert(position, "*");
using (EditorExtensionsPackage.UndoContext("Comment completion"))
{
// Use separate undo context for this, so it can be undone separately.
TextView.TextBuffer.Insert(position + 1, "*/");
}
// Move the caret to the correct point
SnapshotPoint point = new SnapshotPoint(TextView.TextBuffer.CurrentSnapshot, position + 1);
TextView.Caret.MoveTo(point);
return true;
}
public TextExtent GetExtentOfWord(SnapshotPoint currentPosition) {
if (currentPosition.Snapshot?.TextBuffer != textBuffer)
throw new ArgumentException();
WordParser.WordKind kind;
var span = WordParser.GetWordSpan(currentPosition, out kind);
return new TextExtent(span, kind != WordParser.WordKind.Whitespace);
}
public void CreateForAllPoints_Line_EndOfSnapshot()
{
Create("cat", "dog");
var point = new SnapshotPoint(_textBuffer.CurrentSnapshot, _textBuffer.CurrentSnapshot.Length);
var visualSpan = VisualSpan.CreateForAllPoints(VisualKind.Line, point, point);
Assert.AreEqual(1, visualSpan.AsLine().LineRange.LastLineNumber);
}
protected override bool Execute(uint commandId, uint nCmdexecopt, IntPtr pvaIn, IntPtr pvaOut)
{
if (_broker.IsCompletionActive(TextView) || !IsValidTextBuffer() || !WESettings.GetBoolean(WESettings.Keys.EnableEnterFormat))
return false;
int position = TextView.Caret.Position.BufferPosition.Position;
SnapshotPoint point = new SnapshotPoint(TextView.TextBuffer.CurrentSnapshot, position);
IWpfTextViewLine line = TextView.GetTextViewLineContainingBufferPosition(point);
ElementNode element = null;
AttributeNode attr = null;
_tree.GetPositionElement(position, out element, out attr);
if (element == null ||
_tree.IsDirty ||
element.Parent == null ||
line.End.Position == position || // caret at end of line (TODO: add ignore whitespace logic)
TextView.TextBuffer.CurrentSnapshot.GetText(element.InnerRange.Start, element.InnerRange.Length).Trim().Length == 0)
return false;
UpdateTextBuffer(element, position);
return false;
}
// Statement completion
public bool EnableFullIntelliSense(ITextBuffer buffer, SnapshotPoint point)
{
var tokens = GetSemanticModel(buffer);
var type = tokens.GetContextSpan(point).Type;
return type == ContextType.CodeBlock || type == ContextType.Lambda;
}
public override Span? GetInvocationSpan(string text, int linePosition, SnapshotPoint position)
{
// If this isn't the beginning of the line, stop immediately.
var quote = text.SkipWhile(Char.IsWhiteSpace).FirstOrDefault();
if (quote != '"' && quote != '\'')
return null;
// If it is, make sure it's also the beginning of a function.
var prevLine = EnumeratePrecedingLineTokens(position).GetEnumerator();
// If we are at the beginning of the file, that is also fine.
if (prevLine.MoveNext())
{
// Check that the previous line contains "function", then
// eventually ") {" followed by the end of the line.
if (!ConsumeToToken(prevLine, "function", "keyword") || !ConsumeToToken(prevLine, ")", "operator"))
return null;
if (!prevLine.MoveNext() || prevLine.Current.Span.GetText() != "{")
return null;
// If there is non-comment code after the function, stop
if (prevLine.MoveNext() && SkipComments(prevLine))
return null;
}
var startIndex = text.TakeWhile(Char.IsWhiteSpace).Count();
var endIndex = linePosition;
// Consume the auto-added close quote, if present.
// If range ends at the end of the line, we cannot
// check this.
if (endIndex < text.Length && text[endIndex] == quote)
endIndex++;
return Span.FromBounds(startIndex, endIndex);
}
public void AugmentCompletionSession(ICompletionSession session, IList<CompletionSet> completionSets)
{
var caretPosition = session.TextView.Caret.Position.BufferPosition.Position;
var tokenTriggeringIntellisense = _tokenizedBuffer.CurrentState.FindTokenAtIndex(caretPosition);
if (caretPosition == tokenTriggeringIntellisense.IndexToken.StartIndex) tokenTriggeringIntellisense = tokenTriggeringIntellisense.Previous();
var numberOfCharactersBeforeCursor = caretPosition - tokenTriggeringIntellisense.IndexToken.StartIndex;
var textFromSymbolBeforeCursor = tokenTriggeringIntellisense.IndexToken.Token.Text.Substring(0, numberOfCharactersBeforeCursor);
var currentIndexToken = _tokenizedBuffer.CurrentState.FindTokenAtIndex(0);
var completions = new List<Completion>();
while (currentIndexToken != null)
{
if (currentIndexToken.IndexToken.StartIndex != tokenTriggeringIntellisense.IndexToken.StartIndex)
{
if (currentIndexToken.Node.Value.Type == TokenType.Symbol && currentIndexToken.Node.Value.Text.StartsWith(textFromSymbolBeforeCursor))
{
if (completions.Find(c => c.DisplayText == currentIndexToken.Node.Value.Text) == null)
{
completions.Add(new Completion(currentIndexToken.Node.Value.Text));
}
}
}
currentIndexToken = currentIndexToken.Next();
}
var snapshot = session.TextView.TextSnapshot;
var start = new SnapshotPoint(snapshot, tokenTriggeringIntellisense.IndexToken.StartIndex);
var end = new SnapshotPoint(snapshot, start.Position + tokenTriggeringIntellisense.IndexToken.Token.Text.Length);
var applicableTo = snapshot.CreateTrackingSpan(new SnapshotSpan(start, end), SpanTrackingMode.EdgeInclusive);
completionSets.Add(new CompletionSet("All", "All", applicableTo, completions, new List<Completion>()));
}
public override Span? GetInvocationSpan(string text, int linePosition, SnapshotPoint position)
{
// Find the quoted string inside function call
int startIndex = text.LastIndexOf(FunctionName + "(", linePosition, StringComparison.Ordinal);
if (startIndex < 0)
return null;
startIndex += FunctionName.Length + 1;
startIndex += text.Skip(startIndex).TakeWhile(Char.IsWhiteSpace).Count();
if (linePosition <= startIndex || (text[startIndex] != '"' && text[startIndex] != '\''))
return null;
var endIndex = text.IndexOf(text[startIndex] + ")", startIndex, StringComparison.OrdinalIgnoreCase);
if (endIndex < 0)
endIndex = startIndex + text.Skip(startIndex + 1).TakeWhile(c => Char.IsLetterOrDigit(c) || Char.IsWhiteSpace(c) || c == '-' || c == '_').Count() + 1;
else if (linePosition > endIndex + 1)
return null;
// Consume the auto-added close quote, if present.
// If range ends at the end of the line, we cannot
// check this.
if (endIndex < text.Length && text[endIndex] == text[startIndex])
endIndex++;
return Span.FromBounds(startIndex, endIndex);
}
public SnapshotPoint GetCaretPositionInSubjectBuffer(SnapshotPoint viewCaretPosition, ITextSnapshot bufferSnapshot)
{
var currentModelSpanInView = GetCurrentSpanInView(viewCaretPosition.Snapshot);
SnapshotSpan currentModelSpanInSubjectBuffer = GetCurrentSpanInSubjectBuffer(bufferSnapshot);
return currentModelSpanInSubjectBuffer.Start + (viewCaretPosition - currentModelSpanInView.Start);
}
/// <summary>
/// Removes a token using the enhanced token stream class.
/// </summary>
/// <param name="sql"></param>
/// <param name="position"></param>
/// <returns></returns>
private CommonTokenStream RemoveToken(string sql, SnapshotPoint snapPos)
{
MemoryStream ms = new MemoryStream(ASCIIEncoding.ASCII.GetBytes(sql));
CaseInsensitiveInputStream input = new CaseInsensitiveInputStream(ms);
//ANTLRInputStream input = new ANTLRInputStream(ms);
Version ver = LanguageServiceUtil.GetVersion(LanguageServiceUtil.GetConnection().ServerVersion);
MySQLLexer lexer = new MySQLLexer(input);
lexer.MySqlVersion = ver;
TokenStreamRemovable tokens = new TokenStreamRemovable(lexer);
IToken tr = null;
int position = snapPos.Position;
tokens.Fill();
if (!char.IsWhiteSpace(snapPos.GetChar()))
{
foreach (IToken t in tokens.GetTokens())
{
if ((t.StartIndex <= position) && (t.StopIndex >= position))
{
tr = t;
break;
}
}
tokens.Remove(tr);
}
return tokens;
}
internal static CompletionSet Create(List<DesignerNode> nodes, SnapshotPoint point)
{
DesignerNode node = nodes.FindLast(n => n.NodeType == NDjango.Interfaces.NodeType.ParsingContext);
if (node == null)
return null;
return new TagCompletionSet(node, point);
}
public FakeTextSnapshotLine(ITextSnapshot snapshot, string text, int position, int lineNumber)
{
Snapshot = snapshot;
this._text = text;
LineNumber = lineNumber;
Start = new SnapshotPoint(snapshot, position);
}
public SymbolInfo GetSymbolAt(string sourceFileName, SnapshotPoint point)
{
var result = GetGoToDefLocations(sourceFileName, point).FirstOrDefault();
if (result == null)
return null;
return new SymbolInfo(RQNameTranslator.ToIndexId(result.RQName), !result.IsMetadata, result.AssemblyBinaryName);
}
/// <summary>
/// Is the provided SnapshotPoint preceded by the '+= SomeEventType(Some_HandlerName' line
/// </summary>
private bool IsPreceededByEventAddSyntax(SnapshotSpan span)
{
// First find the last + character
var snapshot = span.Snapshot;
SnapshotPoint? plusPoint = null;
for (int i = span.Length - 1; i >= 0; i--)
{
var position = span.Start.Position + i;
var point = new SnapshotPoint(snapshot, position);
if (point.GetChar() == '+')
{
plusPoint = point;
break;
}
}
if (plusPoint == null)
{
return false;
}
var eventSpan = new SnapshotSpan(plusPoint.Value, span.End);
var eventText = eventSpan.GetText();
return
s_fullEventSyntaxRegex.IsMatch(eventText) ||
s_shortEventSyntaxRegex.IsMatch(eventText);
}
private static bool IsValidBraceCompletionContext(SnapshotPoint openingPoint)
{
Debug.Assert(openingPoint.Position >= 0, "SnapshotPoint.Position should always be zero or positive.");
if (openingPoint.Position > 0)
{
var classifier = openingPoint.Snapshot.TextBuffer.GetSyntaxTagger();
var snapshotSpan = new SnapshotSpan(openingPoint - 1, 1);
var classificationSpans = classifier.GetTags(new NormalizedSnapshotSpanCollection(snapshotSpan));
foreach (var span in classificationSpans)
{
if (!span.Span.OverlapsWith(snapshotSpan))
continue;
if (span.Tag.ClassificationType.IsOfType("comment"))
return false;
if (span.Tag.ClassificationType.IsOfType("literal"))
return false;
}
}
// If we haven't stopped this, go ahead and start the completion session.
// Either we were at position 0 (a safe place to be placing a brace completion)
// or we were in a classification that is safe for brace completion.
return true;
}
/// <summary>
/// Restores saved selection
/// </summary>
public override void EndTracking() {
int position = PositionFromTokens(TextBuffer.CurrentSnapshot, _index, _offset);
if (position >= 0) {
PositionAfterChanges = new SnapshotPoint(TextBuffer.CurrentSnapshot, position);
}
MoveToAfterChanges(VirtualSpaces);
}
private bool HandleVariables(IList<object> qiContent, ref ITrackingSpan applicableToSpan, IList<ClassificationSpan> spans, SnapshotPoint? point)
{
ClassificationSpan span;
string text = GetText(spans, point, PredefinedClassificationTypeNames.SymbolDefinition, out span);
if (string.IsNullOrWhiteSpace(text))
return false;
string value = Environment.GetEnvironmentVariable(text.Trim('%'));
if (string.IsNullOrEmpty(value))
return false;
string displayText = value;
if (value.Equals("path", StringComparison.OrdinalIgnoreCase))
displayText = string.Join(Environment.NewLine, value.Split(';'));
applicableToSpan = _buffer.CurrentSnapshot.CreateTrackingSpan(span.Span, SpanTrackingMode.EdgeNegative);
qiContent.Add(displayText);
string expanded = Environment.ExpandEnvironmentVariables(value);
if (expanded != value)
qiContent.Add(expanded);
return true;
}
private static void CommentRegion(ITextView view, SnapshotPoint start, SnapshotPoint end)
{
using (var edit = view.TextBuffer.CreateEdit()) {
int minColumn = Int32.MaxValue;
// first pass, determine the position to place the comment
for (int i = start.GetContainingLine().LineNumber; i <= end.GetContainingLine().LineNumber; i++) {
var curLine = view.TextBuffer.CurrentSnapshot.GetLineFromLineNumber(i);
var text = curLine.GetText();
minColumn = Math.Min(GetMinimumColumn(text), minColumn);
}
// second pass, place the comment
for (int i = start.GetContainingLine().LineNumber; i <= end.GetContainingLine().LineNumber; i++) {
var curLine = view.TextBuffer.CurrentSnapshot.GetLineFromLineNumber(i);
if (curLine.Length < minColumn) {
// need extra white space
edit.Insert(curLine.Start.Position + curLine.Length, new String(' ', minColumn - curLine.Length) + "#");
} else {
edit.Insert(curLine.Start.Position + minColumn, "#");
}
}
edit.Apply();
}
// select the full region we just commented
UpdateSelection(view, start, end);
}
public static Position ToPosition(SnapshotPoint corePoint, ITextSnapshot snapshot = null)
{
SnapshotPoint snapshotPoint = corePoint.TranslateTo(snapshot ?? corePoint.Snapshot, PointTrackingMode.Positive);
ITextSnapshotLine containingLine = snapshotPoint.GetContainingLine();
int charIndex = Math.Max(snapshotPoint.Position - containingLine.Start.Position, 0);
return new Position(containingLine.LineNumber, charIndex);
}
/// <summary>
/// Activates a text view for a text buffer, and sets the cursor to a specific location
/// </summary>
public static bool NavigateToTextBuffer(ITextBuffer textBuffer, int start, int length) {
IProjectionSnapshot projectionSnapshot = textBuffer.CurrentSnapshot as IProjectionSnapshot;
if (projectionSnapshot != null) {
// Find the main buffer for the view
SnapshotPoint sourcePoint = new SnapshotPoint();
bool success = true;
try {
sourcePoint = projectionSnapshot.MapToSourceSnapshot(start, PositionAffinity.Successor);
} catch (ArgumentOutOfRangeException) {
success = false;
} catch (InvalidOperationException) {
success = false;
}
if (success) {
return NavigateToTextBuffer(sourcePoint.Snapshot.TextBuffer, sourcePoint.Position, length);
}
} else {
// This is the main buffer for the view
IVsTextManager textManager = VsAppShell.Current.GetGlobalService<IVsTextManager>(typeof(SVsTextManager));
IVsTextBuffer vsTextBuffer = textBuffer.QueryInterface<IVsTextBuffer>();
Guid viewType = VSConstants.LOGVIEWID_TextView;
if (vsTextBuffer != null &&
ErrorHandler.Succeeded(textManager.NavigateToPosition(vsTextBuffer, ref viewType, start, length))) {
return true;
}
}
return false;
}
protected override bool Execute(uint commandId, uint nCmdexecopt, IntPtr pvaIn, IntPtr pvaOut)
{
int position = TextView.Caret.Position.BufferPosition.Position;
SnapshotPoint point = new SnapshotPoint(TextView.TextBuffer.CurrentSnapshot, position);
IWpfTextViewLine line = TextView.GetTextViewLineContainingBufferPosition(point);
string text = TextView.TextBuffer.CurrentSnapshot.GetText(line.Start, line.Length);
Match match = _indent.Match(text);
if (match.Success)
{
try
{
EditorExtensionsPackage.DTE.UndoContext.Open("Smart Indent");
TextView.TextBuffer.Insert(position, Environment.NewLine + match.Value);
}
finally
{
EditorExtensionsPackage.DTE.UndoContext.Close();
}
return true;
}
return false;
}
public bool TryCreateSession(ITextView textView, SnapshotPoint openingPoint, char openingBrace, char closingBrace, out IBraceCompletionSession session)
{
this.AssertIsForeground();
var textSnapshot = openingPoint.Snapshot;
var document = textSnapshot.GetOpenDocumentInCurrentContextWithChanges();
if (document != null)
{
var editorSessionFactory = document.GetLanguageService<IEditorBraceCompletionSessionFactory>();
if (editorSessionFactory != null)
{
// Brace completion is (currently) not cancellable.
var cancellationToken = CancellationToken.None;
var editorSession = editorSessionFactory.TryCreateSession(document, openingPoint, openingBrace, cancellationToken);
if (editorSession != null)
{
var undoHistory = _undoManager.GetTextBufferUndoManager(textView.TextBuffer).TextBufferUndoHistory;
session = new BraceCompletionSession(
textView, openingPoint.Snapshot.TextBuffer, openingPoint, openingBrace, closingBrace,
undoHistory, _editorOperationsFactoryService,
editorSession);
return true;
}
}
}
session = null;
return false;
}
// returns true if brace is actually a brace.
private bool FindOtherBrace(SnapshotPoint possibleBrace, out SnapshotPoint? otherBrace)
{
otherBrace = null;
var rainbow = this.textBuffer.Get<RainbowProvider>();
if ( rainbow == null ) {
return false;
}
if ( !possibleBrace.IsValid() ) {
return false;
}
if ( !rainbow.BraceCache.Language.BraceList.Contains(possibleBrace.GetChar()) ) {
return false;
}
var bracePair = rainbow.BraceCache.GetBracePair(possibleBrace);
if ( bracePair == null ) {
return true;
}
if ( possibleBrace.Position == bracePair.Item1.Position ) {
otherBrace = bracePair.Item2.ToPoint(possibleBrace.Snapshot);
} else {
otherBrace = bracePair.Item1.ToPoint(possibleBrace.Snapshot);
}
return true;
}
private bool Indent()
{
int position = _textView.Caret.Position.BufferPosition.Position;
if (position == 0 || position == _textView.TextBuffer.CurrentSnapshot.Length || _textView.Selection.SelectedSpans[0].Length > 0)
return false;
char before = _textView.TextBuffer.CurrentSnapshot.GetText(position - 1, 1)[0];
char after = _textView.TextBuffer.CurrentSnapshot.GetText(position, 1)[0];
if (before == '{' && after == '}')
{
EditorExtensionsPackage.DTE.UndoContext.Open("Smart indent");
_textView.TextBuffer.Insert(position, Environment.NewLine + '\t');
SnapshotPoint point = new SnapshotPoint(_textView.TextBuffer.CurrentSnapshot, position);
_textView.Selection.Select(new SnapshotSpan(point, 4), true);
EditorExtensionsPackage.ExecuteCommand("Edit.FormatSelection");
_textView.Selection.Clear();
SendKeys.Send("{ENTER}");
EditorExtensionsPackage.DTE.UndoContext.Close();
return true;
}
return false;
}
public static string PeekString(this ITextSnapshot snapshot, SnapshotPoint point, int length)
{
if (point >= snapshot.Length)
return null;
return new SnapshotSpan(point, Math.Min(length, snapshot.Length - point)).GetText();
}
public TextExtent GetExtentOfWord(SnapshotPoint currentPosition) {
if (currentPosition.Snapshot?.TextBuffer != textBuffer)
throw new ArgumentException();
if (currentPosition.Position >= currentPosition.Snapshot.Length)
return new TextExtent(new SnapshotSpan(currentPosition, currentPosition), true);
return new TextExtent(new SnapshotSpan(currentPosition, currentPosition + 1), true);
}
public static SnapshotPoint? MapUpOrDownToBuffer(this IBufferGraph bufferGraph, SnapshotPoint point, ITextBuffer targetBuffer)
{
var direction = ClassifyBufferMapDirection(point.Snapshot.TextBuffer, targetBuffer);
switch (direction)
{
case BufferMapDirection.Identity:
return point;
case BufferMapDirection.Down:
{
// TODO (https://github.com/dotnet/roslyn/issues/5281): Remove try-catch.
try
{
return bufferGraph.MapDownToInsertionPoint(point, PointTrackingMode.Positive, s => s == targetBuffer.CurrentSnapshot);
}
catch (ArgumentOutOfRangeException) when (bufferGraph.TopBuffer.ContentType.TypeName == "Interactive Content")
{
// Suppress this to work around DevDiv #144964.
// Note: Other callers might be affected, but this is the narrowest workaround for the observed problems.
// A fix is already being reviewed, so a broader change is not required.
return null;
}
}
case BufferMapDirection.Up:
{
return bufferGraph.MapUpToBuffer(point, PointTrackingMode.Positive, PositionAffinity.Predecessor, targetBuffer);
}
default:
return null;
}
}
private ScenarioBlock? GetCurrentScenarioBlock(SnapshotPoint triggerPoint)
{
var parsingResult = gherkinProcessorServices.GetParsingResult(textBuffer);
if (parsingResult == null)
return null;
var triggerLineNumber = triggerPoint.Snapshot.GetLineNumberFromPosition(triggerPoint.Position);
var scenarioInfo = parsingResult.ScenarioEditorInfos.LastOrDefault(si => si.KeywordLine < triggerLineNumber);
if (scenarioInfo == null)
return null;
for (var lineNumer = triggerLineNumber; lineNumer > scenarioInfo.KeywordLine; lineNumer--)
{
StepKeyword? stepKeyword = GetStepKeyword(triggerPoint.Snapshot, lineNumer, parsingResult.LanguageService);
if (stepKeyword != null)
{
var scenarioBlock = stepKeyword.Value.ToScenarioBlock();
if (scenarioBlock != null)
return scenarioBlock;
}
}
return ScenarioBlock.Given;
}
public CaretPosition MoveTo(SnapshotPoint bufferPosition, PositionAffinity caretAffinity) {
_position = bufferPosition.Position;
return new CaretPosition(new VirtualSnapshotPoint(bufferPosition),
new MappingPointMock(bufferPosition.Snapshot.TextBuffer, bufferPosition.Position),
caretAffinity);
}
protected override string GetExteriorTextForNextLine(SnapshotPoint caretPosition)
{
var currentLine = caretPosition.GetContainingLine();
var firstNonWhitespacePosition = currentLine.GetFirstNonWhitespacePosition() ?? -1;
if (firstNonWhitespacePosition == -1)
{
return(null);
}
var currentLineStartsWithBlockCommentStartString = currentLine.StartsWith(firstNonWhitespacePosition, "/*", ignoreCase: false);
var currentLineStartsWithBlockCommentEndString = currentLine.StartsWith(firstNonWhitespacePosition, "*/", ignoreCase: false);
var currentLineStartsWithBlockCommentMiddleString = currentLine.StartsWith(firstNonWhitespacePosition, "*", ignoreCase: false);
if (!currentLineStartsWithBlockCommentStartString && !currentLineStartsWithBlockCommentMiddleString)
{
return(null);
}
if (!IsCaretInsideBlockCommentSyntax(caretPosition))
{
return(null);
}
if (currentLineStartsWithBlockCommentStartString)
{
if (BlockCommentEndsRightAfterCaret(caretPosition))
{
// /*|*/
return(" ");
}
else if (caretPosition == firstNonWhitespacePosition + 1)
{
// /|*
return(null); // The newline inserted could break the syntax in a way that this handler cannot fix, let's leave it.
}
else
{
// /*|
return(" *" + GetPaddingOrIndentation(currentLine, caretPosition, firstNonWhitespacePosition, "/*"));
}
}
if (currentLineStartsWithBlockCommentEndString)
{
if (BlockCommentEndsRightAfterCaret(caretPosition))
{
// /*
// |*/
return(" ");
}
else if (caretPosition == firstNonWhitespacePosition + 1)
{
// *|/
return("*");
}
else
{
// /*
// | */
return(" * ");
}
}
if (currentLineStartsWithBlockCommentMiddleString)
{
if (BlockCommentEndsRightAfterCaret(caretPosition))
{
// *|*/
return("");
}
else if (caretPosition > firstNonWhitespacePosition)
{
// *|
return("*" + GetPaddingOrIndentation(currentLine, caretPosition, firstNonWhitespacePosition, "*"));
}
else
{
// /*
// | *
return(" * ");
}
}
return(null);
}
internal static void RestoreCaretTo(int caretPosition, ITextView textView)
{
var currentSnapshotPoint = new SnapshotPoint(textView.TextBuffer.CurrentSnapshot, caretPosition);
textView.Caret.MoveTo(currentSnapshotPoint);
}
protected override bool TryGetRazorSnapshotPoint(CompletionContext context, out SnapshotPoint snapshotPoint)
{
if (!_canGetSnapshotPoint)
{
snapshotPoint = default(SnapshotPoint);
return(false);
}
var snapshot = new Mock <ITextSnapshot>(MockBehavior.Strict);
snapshot.Setup(s => s.Length)
.Returns(context.CompletionListSpan.End);
snapshotPoint = new SnapshotPoint(snapshot.Object, context.CompletionListSpan.Start);
return(true);
}
private Model FilterModelInBackgroundWorker(
Document document,
Model model,
int id,
SnapshotPoint caretPosition,
CompletionFilterReason filterReason,
ImmutableDictionary <CompletionItemFilter, bool> filterState)
{
if (model == null)
{
return(null);
}
// We want to dismiss the session if the caret ever moved outside our bounds.
// Do this before we check the _filterId. We don't want this work to not happen
// just because the user typed more text and added more filter items.
if (filterReason == CompletionFilterReason.CaretPositionChanged &&
Controller.IsCaretOutsideAllItemBounds(model, caretPosition))
{
return(null);
}
// If the UI specified an updated filter state, then incorporate that
// into our model. Do this before we check the _filterId. We don't
// want this work to not happen just because the user typed more text
// and added more filter items.
if (filterState != null)
{
model = model.WithFilterState(filterState);
}
// If there's another request in the queue to filter items, then just
// bail out immediately. No point in doing extra work that's just
// going to be overridden by the next filter task.
if (id != _filterId)
{
return(model);
}
var textSnapshot = caretPosition.Snapshot;
var textSpanToText = new Dictionary <TextSpan, string>();
var helper = this.Controller.GetCompletionHelper(document);
var recentItems = this.Controller.GetRecentItems();
var filterResults = new List <FilterResult>();
var filterText = model.GetCurrentTextInSnapshot(
model.OriginalList.Span, textSnapshot, textSpanToText);
// Check if the user is typing a number. If so, only proceed if it's a number
// directly after a <dot>. That's because it is actually reasonable for completion
// to be brought up after a <dot> and for the user to want to filter completion
// items based on a number that exists in the name of the item. However, when
// we are not after a dot (i.e. we're being brought up after <space> is typed)
// then we don't want to filter things. Consider the user writing:
//
// dim i =<space>
//
// We'll bring up the completion list here (as VB has completion on <space>).
// If the user then types '3', we don't want to match against Int32.
var filterTextStartsWithANumber = filterText.Length > 0 && char.IsNumber(filterText[0]);
if (filterTextStartsWithANumber)
{
if (!IsAfterDot(model, model.TriggerSnapshot, textSpanToText))
{
return(null);
}
}
var effectiveFilterItemState = ComputeEffectiveFilterItemState(model);
foreach (var currentItem in model.TotalItems)
{
// Check if something new has happened and there's a later on filter operation
// in the chain. If so, there's no need for us to do any more work (as it will
// just be superceded by the later work).
if (id != _filterId)
{
return(model);
}
if (CompletionItemFilter.ShouldBeFilteredOutOfCompletionList(
currentItem, effectiveFilterItemState))
{
continue;
}
// Check if the item matches the filter text typed so far.
var matchesFilterText = MatchesFilterText(helper, currentItem, filterText, model.Trigger, filterReason, recentItems);
if (matchesFilterText)
{
filterResults.Add(new FilterResult(
currentItem, filterText, matchedFilterText: true));
}
else
{
// The item didn't match the filter text. We'll still keep it in the list
// if one of two things is true:
//
// 1. The user has only typed a single character. In this case they might
// have just typed the character to get completion. Filtering out items
// here is not desirable.
//
// 2. They brough up completion with ctrl-j or through deletion. In these
// cases we just always keep all the items in the list.
var wasTriggeredByDeleteOrSimpleInvoke =
model.Trigger.Kind == CompletionTriggerKind.Deletion ||
model.Trigger.Kind == CompletionTriggerKind.Invoke;
var shouldKeepItem = filterText.Length <= 1 || wasTriggeredByDeleteOrSimpleInvoke;
if (shouldKeepItem)
{
filterResults.Add(new FilterResult(
currentItem, filterText, matchedFilterText: false));
}
}
}
model = model.WithFilterText(filterText);
// If no items matched the filter text then determine what we should do.
if (filterResults.Count == 0)
{
return(HandleAllItemsFilteredOut(model, filterReason));
}
// If this was deletion, then we control the entire behavior of deletion
// ourselves.
if (model.Trigger.Kind == CompletionTriggerKind.Deletion)
{
return(HandleDeletionTrigger(model, filterReason, filterResults));
}
return(HandleNormalFiltering(
model, document, filterReason, caretPosition,
helper, recentItems, filterText, filterResults));
}
public void OnCommitted(ICssCompletionListEntry entry, ITrackingSpan contextSpan, SnapshotPoint caret, ITextView textView)
{
if (entry.DisplayText == "Add region...")
{
Dispatcher.CurrentDispatcher.BeginInvoke(
new Action(() => System.Windows.Forms.SendKeys.Send("{TAB}")), DispatcherPriority.Normal);
}
}
public AbstractCommandHandlerTestState(
XElement workspaceElement,
ExportProvider exportProvider,
string?workspaceKind,
bool makeSeparateBufferForCursor = false,
ImmutableArray <string> roles = default)
{
this.Workspace = TestWorkspace.CreateWorkspace(
workspaceElement,
exportProvider : exportProvider,
workspaceKind : workspaceKind);
if (makeSeparateBufferForCursor)
{
var languageName = Workspace.Projects.First().Language;
var contentType = Workspace.Services.GetLanguageServices(languageName).GetRequiredService <IContentTypeLanguageService>().GetDefaultContentType();
_createdTextView = EditorFactory.CreateView(exportProvider, contentType, roles);
_textView = _createdTextView.TextView;
_subjectBuffer = _textView.TextBuffer;
}
else
{
var cursorDocument = this.Workspace.Documents.First(d => d.CursorPosition.HasValue);
_textView = cursorDocument.GetTextView();
_subjectBuffer = cursorDocument.GetTextBuffer();
if (cursorDocument.AnnotatedSpans.TryGetValue("Selection", out var selectionSpanList))
{
var firstSpan = selectionSpanList.First();
var lastSpan = selectionSpanList.Last();
var cursorPosition = cursorDocument.CursorPosition !.Value;
Assert.True(cursorPosition == firstSpan.Start || cursorPosition == firstSpan.End ||
cursorPosition == lastSpan.Start || cursorPosition == lastSpan.End,
"cursorPosition wasn't at an endpoint of the 'Selection' annotated span");
_textView.Selection.Mode = selectionSpanList.Length > 1
? TextSelectionMode.Box
: TextSelectionMode.Stream;
SnapshotPoint boxSelectionStart, boxSelectionEnd;
bool isReversed;
if (cursorPosition == firstSpan.Start || cursorPosition == lastSpan.End)
{
// Top-left and bottom-right corners used as anchor points.
boxSelectionStart = new SnapshotPoint(_subjectBuffer.CurrentSnapshot, firstSpan.Start);
boxSelectionEnd = new SnapshotPoint(_subjectBuffer.CurrentSnapshot, lastSpan.End);
isReversed = cursorPosition == firstSpan.Start;
}
else
{
// Top-right and bottom-left corners used as anchor points.
boxSelectionStart = new SnapshotPoint(_subjectBuffer.CurrentSnapshot, firstSpan.End);
boxSelectionEnd = new SnapshotPoint(_subjectBuffer.CurrentSnapshot, lastSpan.Start);
isReversed = cursorPosition == firstSpan.End;
}
_textView.Selection.Select(
new SnapshotSpan(boxSelectionStart, boxSelectionEnd),
isReversed: isReversed);
}
}
this.EditorOperations = GetService <IEditorOperationsFactoryService>().GetEditorOperations(_textView);
this.UndoHistoryRegistry = GetService <ITextUndoHistoryRegistry>();
}
private StepDefinitionType?GetCurrentBindingType(SnapshotPoint triggerPoint, out string parsedKeyword)
{
parsedKeyword = null;
var fileScope = languageService.GetFileScope(waitForParsingSnapshot: triggerPoint.Snapshot);
if (fileScope == null)
{
return(null);
}
var triggerLineNumber = triggerPoint.Snapshot.GetLineNumberFromPosition(triggerPoint.Position);
var step = fileScope.GetStepAtPosition(triggerLineNumber);
if (step != null)
{
parsedKeyword = step.Keyword.TrimEnd();
return(step.StepDefinitionType);
}
if (!IsStepLine(triggerPoint, languageService))
{
return(null);
}
// this is a step line that just started. we need to calculate the binding type from
// the keyword and the context
var keywordCandidate = GetFirstWord(triggerPoint);
if (keywordCandidate == null)
{
return(null);
}
GherkinDialect dialect = GetDialect(languageService);
var stepKeyword = dialect.TryParseStepKeyword(keywordCandidate);
if (stepKeyword == null)
{
keywordCandidate = GetFirstTwoWords(triggerPoint);
if (keywordCandidate != null)
{
stepKeyword = dialect.TryParseStepKeyword(keywordCandidate);
}
if (stepKeyword == null)
{
return(null);
}
}
parsedKeyword = keywordCandidate;
if (stepKeyword == StepKeyword.Given)
{
return(StepDefinitionType.Given);
}
if (stepKeyword == StepKeyword.When)
{
return(StepDefinitionType.When);
}
if (stepKeyword == StepKeyword.Then)
{
return(StepDefinitionType.Then);
}
parsedKeyword = null;
// now we need the context
var stepBlock = fileScope.GetStepBlockFromStepPosition(triggerLineNumber);
var lastStep = stepBlock.Steps.LastOrDefault(s => s.BlockRelativeLine + stepBlock.KeywordLine < triggerLineNumber);
if (lastStep == null)
{
return(StepDefinitionType.Given);
}
return(lastStep.StepDefinitionType);
}
private async Task <Model> ComputeModelInBackgroundAsync(
Model currentModel,
ImmutableArray <ISignatureHelpProvider> providers,
SnapshotPoint caretPosition,
DisconnectedBufferGraph disconnectedBufferGraph,
SignatureHelpTriggerInfo triggerInfo,
CancellationToken cancellationToken)
{
try
{
using (Logger.LogBlock(FunctionId.SignatureHelp_ModelComputation_ComputeModelInBackground, cancellationToken))
{
AssertIsBackground();
cancellationToken.ThrowIfCancellationRequested();
var document = await Controller.DocumentProvider.GetDocumentAsync(caretPosition.Snapshot, cancellationToken).ConfigureAwait(false);
if (document == null)
{
return(currentModel);
}
if (triggerInfo.TriggerReason == SignatureHelpTriggerReason.RetriggerCommand)
{
if (currentModel == null)
{
return(null);
}
if (triggerInfo.TriggerCharacter.HasValue &&
!currentModel.Provider.IsRetriggerCharacter(triggerInfo.TriggerCharacter.Value))
{
return(currentModel);
}
}
// first try to query the providers that can trigger on the specified character
var(provider, items) = await ComputeItemsAsync(
providers, caretPosition, triggerInfo,
document, cancellationToken).ConfigureAwait(false);
if (provider == null)
{
// No provider produced items. So we can't produce a model
return(null);
}
if (currentModel != null &&
currentModel.Provider == provider &&
currentModel.GetCurrentSpanInSubjectBuffer(disconnectedBufferGraph.SubjectBufferSnapshot).Span.Start == items.ApplicableSpan.Start &&
currentModel.Items.IndexOf(currentModel.SelectedItem) == items.SelectedItemIndex &&
currentModel.ArgumentIndex == items.ArgumentIndex &&
currentModel.ArgumentCount == items.ArgumentCount &&
currentModel.ArgumentName == items.ArgumentName)
{
// The new model is the same as the current model. Return the currentModel
// so we keep the active selection.
return(currentModel);
}
var selectedItem = GetSelectedItem(currentModel, items, provider, out bool userSelected);
var model = new Model(disconnectedBufferGraph, items.ApplicableSpan, provider,
items.Items, selectedItem, items.ArgumentIndex, items.ArgumentCount, items.ArgumentName,
selectedParameter: 0, userSelected);
var syntaxFactsService = document.GetLanguageService <ISyntaxFactsService>();
var isCaseSensitive = syntaxFactsService == null || syntaxFactsService.IsCaseSensitive;
var selection = DefaultSignatureHelpSelector.GetSelection(model.Items,
model.SelectedItem, model.UserSelected, model.ArgumentIndex, model.ArgumentCount, model.ArgumentName, isCaseSensitive);
return(model.WithSelectedItem(selection.SelectedItem, selection.UserSelected)
.WithSelectedParameter(selection.SelectedParameter));
}
}
catch (Exception e) when(FatalError.ReportUnlessCanceled(e))
{
throw ExceptionUtilities.Unreachable;
}
}
public Task <CompletionContext> GetCompletionContextAsync(IAsyncCompletionSession session, CompletionTrigger trigger, SnapshotPoint triggerLocation, SnapshotSpan applicableToSpan, CancellationToken token)
{
if (_parser.TryGetCompletionList(triggerLocation, _attributeName, out IEnumerable <CompletionItem> completions))
{
return(Task.FromResult(new CompletionContext(completions.ToImmutableArray())));
}
return(Task.FromResult(CompletionContext.Empty));
}
private static bool BlockCommentEndsRightAfterCaret(SnapshotPoint caretPosition)
{
var snapshot = caretPosition.Snapshot;
return(((int)caretPosition + 2 <= snapshot.Length) ? snapshot.GetText(caretPosition, 2) == "*/" : false);
}
public CaretPosition MoveTo(SnapshotPoint bufferPosition)
{
this.InternalMoveTo(new VirtualSnapshotPoint(bufferPosition), PositionAffinity.Successor, true, true, true);
return(this.Position);
}
public void AugmentCompletionSession(ICompletionSession session, IList <CompletionSet> completionSets)
{
//AsmDudeToolsStatic.Output_INFO(string.Format("{0}:AugmentCompletionSession", this.ToString()));
if (!Settings.Default.CodeCompletion_On)
{
return;
}
try
{
DateTime time1 = DateTime.Now;
ITextSnapshot snapshot = this._buffer.CurrentSnapshot;
SnapshotPoint triggerPoint = (SnapshotPoint)session.GetTriggerPoint(snapshot);
if (triggerPoint == null)
{
return;
}
ITextSnapshotLine line = triggerPoint.GetContainingLine();
//1] check if current position is in a remark; if we are in a remark, no code completion
#region
if (triggerPoint.Position > 1)
{
char currentTypedChar = (triggerPoint - 1).GetChar();
//AsmDudeToolsStatic.Output_INFO("CodeCompletionSource:AugmentCompletionSession: current char = "+ currentTypedChar);
if (!currentTypedChar.Equals('#'))
{ //TODO UGLY since the user can configure this starting character
int pos = triggerPoint.Position - line.Start;
if (AsmSourceTools.IsInRemark(pos, line.GetText()))
{
//AsmDudeToolsStatic.Output_INFO("CodeCompletionSource:AugmentCompletionSession: currently in a remark section");
return;
}
else
{
// AsmDudeToolsStatic.Output_INFO("CodeCompletionSource:AugmentCompletionSession: not in a remark section");
}
}
}
#endregion
//2] find the start of the current keyword
#region
SnapshotPoint start = triggerPoint;
while ((start > line.Start) && !AsmSourceTools.IsSeparatorChar((start - 1).GetChar()))
{
start -= 1;
}
#endregion
//3] get the word that is currently being typed
#region
ITrackingSpan applicableTo = snapshot.CreateTrackingSpan(new SnapshotSpan(start, triggerPoint), SpanTrackingMode.EdgeInclusive);
string partialKeyword = applicableTo.GetText(snapshot);
bool useCapitals = AsmDudeToolsStatic.Is_All_Upper(partialKeyword);
string lineStr = line.GetText();
(string Label, Mnemonic Mnemonic, string[] Args, string Remark)t = AsmSourceTools.ParseLine(lineStr);
Mnemonic mnemonic = t.Mnemonic;
//AsmDudeToolsStatic.Output_INFO("CodeCompletionSource:AugmentCompletionSession; lineStr="+ lineStr+ "; t.Item1="+t.Item1);
string previousKeyword = AsmDudeToolsStatic.Get_Previous_Keyword(line.Start, start).ToUpper();
if (mnemonic == Mnemonic.NONE)
{
//AsmDudeToolsStatic.Output_INFO("CodeCompletionSource:AugmentCompletionSession; lineStr=" + lineStr + "; previousKeyword=" + previousKeyword);
if (previousKeyword.Equals("INVOKE")) //TODO INVOKE is a MASM keyword not a NASM one...
{
// Suggest a label
IEnumerable <Completion> completions = this.Label_Completions(useCapitals, false);
if (completions.Any())
{
completionSets.Add(new CompletionSet("Labels", "Labels", applicableTo, completions, Enumerable.Empty <Completion>()));
}
}
else
{
{
ISet <AsmTokenType> selected1 = new HashSet <AsmTokenType> {
AsmTokenType.Directive, AsmTokenType.Jump, AsmTokenType.Misc, AsmTokenType.Mnemonic
};
IEnumerable <Completion> completions1 = this.Selected_Completions(useCapitals, selected1, true);
if (completions1.Any())
{
completionSets.Add(new CompletionSet("All", "All", applicableTo, completions1, Enumerable.Empty <Completion>()));
}
}
if (false)
{
ISet <AsmTokenType> selected2 = new HashSet <AsmTokenType> {
AsmTokenType.Jump, AsmTokenType.Mnemonic
};
IEnumerable <Completion> completions2 = this.Selected_Completions(useCapitals, selected2, false);
if (completions2.Any())
{
completionSets.Add(new CompletionSet("Instr", "Instr", applicableTo, completions2, Enumerable.Empty <Completion>()));
}
}
if (false)
{
ISet <AsmTokenType> selected3 = new HashSet <AsmTokenType> {
AsmTokenType.Directive, AsmTokenType.Misc
};
IEnumerable <Completion> completions3 = this.Selected_Completions(useCapitals, selected3, true);
if (completions3.Any())
{
completionSets.Add(new CompletionSet("Directive", "Directive", applicableTo, completions3, Enumerable.Empty <Completion>()));
}
}
}
}
else
{ // the current line contains a mnemonic
//AsmDudeToolsStatic.Output_INFO("CodeCompletionSource:AugmentCompletionSession; mnemonic=" + mnemonic+ "; previousKeyword="+ previousKeyword);
if (AsmSourceTools.IsJump(AsmSourceTools.ParseMnemonic(previousKeyword, true)))
{
//AsmDudeToolsStatic.Output_INFO("CodeCompletionSource:AugmentCompletionSession; previous keyword is a jump mnemonic");
// previous keyword is jump (or call) mnemonic. Suggest "SHORT" or a label
IEnumerable <Completion> completions = this.Label_Completions(useCapitals, true);
if (completions.Any())
{
completionSets.Add(new CompletionSet("Labels", "Labels", applicableTo, completions, Enumerable.Empty <Completion>()));
}
}
else if (previousKeyword.Equals("SHORT") || previousKeyword.Equals("NEAR"))
{
// Suggest a label
IEnumerable <Completion> completions = this.Label_Completions(useCapitals, false);
if (completions.Any())
{
completionSets.Add(new CompletionSet("Labels", "Labels", applicableTo, completions, Enumerable.Empty <Completion>()));
}
}
else
{
IList <Operand> operands = AsmSourceTools.MakeOperands(t.Args);
ISet <AsmSignatureEnum> allowed = new HashSet <AsmSignatureEnum>();
int commaCount = AsmSignature.Count_Commas(lineStr);
IEnumerable <AsmSignatureElement> allSignatures = this._asmDudeTools.Mnemonic_Store.GetSignatures(mnemonic);
ISet <Arch> selectedArchitectures = AsmDudeToolsStatic.Get_Arch_Swithed_On();
foreach (AsmSignatureElement se in AsmSignatureHelpSource.Constrain_Signatures(allSignatures, operands, selectedArchitectures))
{
if (commaCount < se.Operands.Count)
{
foreach (AsmSignatureEnum s in se.Operands[commaCount])
{
allowed.Add(s);
}
}
}
IEnumerable <Completion> completions = this.Mnemonic_Operand_Completions(useCapitals, allowed, line.LineNumber);
if (completions.Any())
{
completionSets.Add(new CompletionSet("All", "All", applicableTo, completions, Enumerable.Empty <Completion>()));
}
}
}
#endregion
AsmDudeToolsStatic.Print_Speed_Warning(time1, "Code Completion");
}
catch (Exception e)
{
AsmDudeToolsStatic.Output_ERROR(string.Format("{0}:AugmentCompletionSession; e={1}", this.ToString(), e.ToString()));
}
}
private bool IsValidBraceCompletionContext(SnapshotPoint openingPoint)
{
Debug.Assert(openingPoint.Position >= 0, "SnapshotPoint.Position should always be zero or positive.");
return(true);
}
public CaretPosition MoveTo(SnapshotPoint bufferPosition, PositionAffinity caretAffinity, bool captureHorizontalPosition)
{
this.InternalMoveTo(new VirtualSnapshotPoint(bufferPosition), caretAffinity, captureHorizontalPosition, true, true);
return(this.Position);
}
/// <summary>
/// Indicates that the drag and drop operation has completed, and that the final tasks, if any, should be performed now.
/// </summary>
/// <param name="dragDropInfo">
/// Information about the drag and drop operation in progress.
/// </param>
/// <returns>
/// The drag and drop effects of this drop operation. For example, if the drop operation has moved data,
/// DragDropPointerEffects.Move should be returned.
/// </returns>
/// <remarks>This method is called when the user drops the data onto the editor.
/// This marks the end of a drag and drop operation.
/// The <see cref="IDropHandler"/> is expected to perform the final tasks of the operation.
/// </remarks>
public virtual DragDropPointerEffects HandleDataDropped(DragDropInfo dragDropInfo)
{
if (dragDropInfo == null)
{
throw new ArgumentNullException(nameof(dragDropInfo));
}
ITextSelection selection = _cocoaTextView.Selection;
//keeps track of the result of this operation
DragDropPointerEffects result = DragDropPointerEffects.None;
//tracks the location at which the data was dropped
VirtualSnapshotPoint dropLocation = dragDropInfo.VirtualBufferPosition;
//convert the drag/drop data to text
string dragDropText = this.ExtractText(dragDropInfo);
bool isReversed = selection.IsReversed;
bool copyRequested = (dragDropInfo.KeyStates & NSEventModifierMask.AlternateKeyMask) == NSEventModifierMask.AlternateKeyMask;
bool copyAllowed = (dragDropInfo.AllowedEffects & NSDragOperation.Copy) == NSDragOperation.Copy;
ITextSnapshot preEditSnapshot = _cocoaTextView.TextSnapshot;
// track the point where the data will be inserted
ITrackingPoint insertionPoint = preEditSnapshot.CreateTrackingPoint(dropLocation.Position, PointTrackingMode.Negative);
// track the currently selected spans before any edits are performed on the buffer
List <ITrackingSpan> selectionSpans = new List <ITrackingSpan>();
foreach (SnapshotSpan selectedSpan in selection.SelectedSpans)
{
selectionSpans.Add(preEditSnapshot.CreateTrackingSpan(selectedSpan, SpanTrackingMode.EdgeExclusive));
}
// perform any necessary pre edit actions
this.PerformPreEditActions(dragDropInfo);
// clear selection before data operations
if (!selection.IsEmpty)
{
selection.Clear();
}
// a reference to the snapshot resulting from the edits
bool successfulEdit = false;
// if the data is being dropped in virtual space, calculate how many whitespace characters will be inserted
// to fill the gap between the dropped point and the closest buffer position
int virtualSpaceLength = 0;
if (dragDropInfo.VirtualBufferPosition.IsInVirtualSpace)
{
virtualSpaceLength = _editorOperations.GetWhitespaceForVirtualSpace(dragDropInfo.VirtualBufferPosition).Length;
}
if (copyRequested && copyAllowed)
{
//copy the data by inserting it in the buffer
successfulEdit = this.InsertText(dropLocation, dragDropText);
if (successfulEdit)
{
result = DragDropPointerEffects.Copy;
}
}
else
{
//the data needs to be moved
if (dragDropInfo.IsInternal)
{
//delete the existing selection, and add the data to the new location
successfulEdit = this.MoveText(dropLocation, selectionSpans, dragDropText);
}
else
{
//the drag is not from this text view, just insert the data at dropLocation
successfulEdit = this.InsertText(dropLocation, dragDropText);
}
//set the pointer effect to move if the edit was successful since that implies that the data was moved successfully
if (successfulEdit)
{
result = DragDropPointerEffects.Move;
}
}
// finally select the newly inserted data if the operation was successful
if (result != DragDropPointerEffects.None)
{
SnapshotPoint textInsertionPoint = insertionPoint.GetPoint(_cocoaTextView.TextSnapshot);
// if the data was inserted in virtual space, offset the selection's anchor point by the whitespace that was inserted
// in virtual space
if (virtualSpaceLength != 0)
{
textInsertionPoint = textInsertionPoint.Add(virtualSpaceLength);
}
this.SelectText(textInsertionPoint, dragDropText.Length, dragDropInfo, isReversed);
}
// perform any post edit actions as necessary
this.PerformPostEditActions(dragDropInfo, successfulEdit);
return(result);
}
ITextViewLine ITextViewLineCollection.GetTextViewLineContainingBufferPosition(SnapshotPoint bufferPosition) => GetTextViewLineContainingBufferPosition(bufferPosition);
/// <summary>
/// Determine if a given "word" should be highlighted
/// </summary>
private static bool WordExtentIsValid(SnapshotPoint currentRequest, TextExtent word)
{
return(word.IsSignificant && currentRequest.Snapshot.GetText(word.Span).Any(c => char.IsLetter(c)));
}
// Brace matching
public IEnumerable <ITagSpan <TextMarkerTag> > GetBraceTags(ITextBuffer buffer, SnapshotPoint point)
{
var tokens = GetSemanticModel(buffer);
var token = tokens.GetToken(point.Position - 1);
var tag = new TextMarkerTag(Classifications.BraceHighlight);
if (token?.MatchingToken != null && token.IsOpen == false)
{
yield return(new TagSpan <TextMarkerTag>(new SnapshotSpan(point.Snapshot, token.Start, 1), tag));
yield return(new TagSpan <TextMarkerTag>(new SnapshotSpan(point.Snapshot, token.MatchingToken.Start, 1), tag));
}
else
{
token = tokens.GetToken(point.Position);
if (token?.MatchingToken != null && token.IsOpen)
{
yield return(new TagSpan <TextMarkerTag>(new SnapshotSpan(point.Snapshot, token.Start, 1), tag));
yield return(new TagSpan <TextMarkerTag>(new SnapshotSpan(point.Snapshot, token.MatchingToken.Start, 1), tag));
}
}
}
public ValueCompletionSet(DesignerNode node, SnapshotPoint point)
: base(node, point)
{
}
void IVimHost.EnsureVisible(ITextView textView, SnapshotPoint value)
{
}
IWpfTextViewLine IWpfTextView.GetTextViewLineContainingBufferPosition(SnapshotPoint bufferPosition) => throw new NotImplementedException();
public SnapshotSpan GetSpanToTokenize(SnapshotPoint point)
{
return(this.stateManagement.GetSpanToTokenize(new SnapshotSpan(point.Snapshot, point.Position, 0)));
}
private static bool IsInAString(SyntaxNode currentNode, SnapshotPoint caret) // If caret is at the end of the line, it is outside the string => currentNode.IsKind(SyntaxKind.InterpolatedStringExpression, SyntaxKind.StringLiteralExpression) && caret.Position != caret.GetContainingLine().End;
public IEnumerable <ITagSpan <TextMarkerTag> > GetTags(NormalizedSnapshotSpanCollection spans)
{
// Todo: the classifier is now marking open and close keywords with (invisible) classification
// on another location the classifier is building regions based on Open/Close keywords.
// During this process of building regions we can also 'remember' the open/close pairs
// so we do not have to look for these in this code.
DateTime oStart, oEnd;
TimeSpan timeSpan;
oStart = DateTime.Now;
if (spans.Count == 0 || _currentChar == null) //there is no content in the buffer
{
yield break;
}
WriteOutputMessage($"GetTags() Spans: {spans.Count}");
//don't do anything if the current SnapshotPoint is not initialized or at the end of the buffer
if (!_currentChar.HasValue || _currentChar.Value.Position >= _currentChar.Value.Snapshot.Length)
{
yield break;
}
//hold on to a snapshot of the current character
SnapshotPoint currentChar = _currentChar.Value;
//if the requested snapshot isn't the same as the one the brace is on, translate our spans to the expected snapshot
if (spans[0].Snapshot != currentChar.Snapshot)
{
currentChar = currentChar.TranslateTo(spans[0].Snapshot, PointTrackingMode.Positive);
}
//get the current char and the previous char
SnapshotSpan pairSpan = new SnapshotSpan();
// check to see if we are on a closing or opening keyword
if (!cursorOnKwOpenClose(currentChar))
{
yield break;
}
// Try to Match Keywords
// Try to retrieve an already parsed list of Tags
XSharpClassifier xsClassifier = _buffer.GetClassifier();
if (xsClassifier == null)
{
yield break;
}
else
{
ITagSpan <TextMarkerTag> result1 = null;
ITagSpan <TextMarkerTag> result2 = null;
ITagSpan <TextMarkerTag> result3 = null;
ITagSpan <TextMarkerTag> result4 = null;
try
{
WriteOutputMessage("Match Open/Close keywords : " + oStart.ToString("hh:mm:ss.fff"));
ITextSnapshot snapshot = xsClassifier.Snapshot;
if (snapshot.Version != currentChar.Snapshot.Version)
{
yield break;
}
SnapshotSpan Span = new SnapshotSpan(snapshot, 0, snapshot.Length);
var classifications = xsClassifier.GetTags();
// We cannot use SortedList, because we may have several Classification that start at the same position
List <ClassificationSpan> sortedTags = new List <ClassificationSpan>();
foreach (var tag in classifications)
{
// Only keep the Brace matching Tags
if ((tag.ClassificationType.IsOfType(ColorizerConstants.XSharpKwOpenFormat)) ||
(tag.ClassificationType.IsOfType(ColorizerConstants.XSharpKwCloseFormat)))
{
sortedTags.Add(tag);
}
}
sortedTags.Sort((a, b) => a.Span.Start.Position.CompareTo(b.Span.Start.Position) * 1000 + string.Compare(a.ClassificationType.Classification, b.ClassificationType.Classification));
//
var tags = sortedTags.Where(x => currentChar.Position >= x.Span.Start.Position && currentChar.Position <= x.Span.End.Position);
foreach (var currentTag in tags)
{
var index = sortedTags.IndexOf(currentTag);
if (currentTag.ClassificationType.IsOfType(ColorizerConstants.XSharpKwOpenFormat) && result1 == null)
{
if (FindMatchingCloseTag(sortedTags, index, snapshot, out pairSpan))
{
var span = currentTag.Span;
result1 = new TagSpan <TextMarkerTag>(span, _tag);
result2 = new TagSpan <TextMarkerTag>(pairSpan, _tag);
}
}
else if (result3 == null)
{
if (FindMatchingOpenTag(sortedTags, index, snapshot, out pairSpan))
{
var span = currentTag.Span;
result3 = new TagSpan <TextMarkerTag>(pairSpan, _tag);
result4 = new TagSpan <TextMarkerTag>(span, _tag);
}
}
}
}
catch (Exception e)
{
XSettings.LogException(e, "KeywordMatchingTagger.GetTags failed");
}
finally
{
oEnd = DateTime.Now;
timeSpan = oEnd - oStart;
WriteOutputMessage("Finished Match Open/Close keywords: " + oEnd.ToString("hh:mm:ss.fff"));
WriteOutputMessage("Finished Match Open/Close keywords - total ms: " + timeSpan.TotalMilliseconds.ToString());
}
if (result1 != null)
{
yield return(result1);
}
if (result2 != null)
{
yield return(result2);
}
if (result3 != null)
{
yield return(result3);
}
if (result4 != null)
{
yield return(result4);
}
}
}
private static CompletionContext GetCompletionContext(PaketDocument paketDocument, ITextStructureNavigator navigator, SnapshotPoint position)
{
TextExtent endPosition = navigator.GetExtentOfWord(position - 1);
TextExtent startPosition = endPosition;
// try to extend the span over .
while (!String.IsNullOrWhiteSpace(paketDocument.GetCharAt(startPosition.Span.Start.Position - 1)))
{
startPosition = navigator.GetExtentOfWord(startPosition.Span.Start - 2);
}
var startPos = startPosition.Span.Start.Position;
var length = endPosition.Span.End.Position - startPos;
var span = new Span(startPos, length);
var snapShotSpan = new SnapshotSpan(position.Snapshot, span);
var context = new CompletionContext(span);
TextExtent previous = navigator.GetExtentOfWord(startPosition.Span.Start - 1);
// try to extend the span over blanks
while (paketDocument.GetCharAt(previous.Span.Start.Position) == " ")
{
previous = navigator.GetExtentOfWord(previous.Span.Start - 1);
}
var lastWord = previous.Span.GetText();
switch (lastWord)
{
case "nuget": context.ContextType = CompletionContextType.NuGet; break;
case "source": context.ContextType = CompletionContextType.Source; break;
case "strategy": context.ContextType = CompletionContextType.Strategy; break;
default: context.ContextType = CompletionContextType.Keyword; break;
}
context.Snapshot = snapShotSpan.Snapshot;
return(context);
}
public CaretPosition MoveCaret(SnapshotPoint newPoint)
{
return(_vs.Invoke(() => _view.Caret.MoveTo(newPoint.TranslateTo(newPoint.Snapshot.TextBuffer.CurrentSnapshot, PointTrackingMode.Positive))));
}
public static IEnumerable <ICompletionListProvider> GetCompletionProviders(IIntellisenseSession session, ITextBuffer textBuffer, SnapshotPoint position, ITextStructureNavigator navigator, out CompletionContext context)
{
IEnumerable <ICompletionListProvider> providers = GetCompletionProviders(PaketDocument.FromTextBuffer(textBuffer), navigator, position, out context);
if (context == null)
{
return(providers);
}
if (context.Snapshot == null)
{
context.Snapshot = textBuffer.CurrentSnapshot;
}
if (context.Session != null)
{
return(providers);
}
context.Session = session;
return(providers);
}
void IVimHost.EnsureVisible(ITextView textView, SnapshotPoint point)
{
EnsureVisible(textView, point);
}
private static async Task PasteReplCode(
IInteractiveWindow window,
string pasting,
PythonLanguageVersion version
)
{
// there's some text in the buffer...
var view = window.TextView;
var caret = view.Caret;
if (view.Selection.IsActive && !view.Selection.IsEmpty)
{
foreach (var span in view.Selection.SelectedSpans)
{
foreach (var normalizedSpan in view.BufferGraph.MapDownToBuffer(span, SpanTrackingMode.EdgeInclusive, window.CurrentLanguageBuffer))
{
normalizedSpan.Snapshot.TextBuffer.Delete(normalizedSpan);
}
}
}
var curBuffer = window.CurrentLanguageBuffer;
if (curBuffer.CurrentSnapshot.Length > 0)
{
// There is existing content in the buffer, so let's just insert and
// return. We do submit any statements.
window.InsertCode(pasting);
return;
}
var inputPoint = view.BufferGraph.MapDownToBuffer(
caret.Position.BufferPosition,
PointTrackingMode.Positive,
curBuffer,
PositionAffinity.Successor
);
// if we didn't find a location then see if we're in a prompt, and if so, then we want
// to insert after the prompt.
if (caret.Position.BufferPosition != window.TextView.TextBuffer.CurrentSnapshot.Length)
{
for (int i = caret.Position.BufferPosition + 1;
inputPoint == null && i <= window.TextView.TextBuffer.CurrentSnapshot.Length;
i++)
{
inputPoint = view.BufferGraph.MapDownToBuffer(
new SnapshotPoint(window.TextView.TextBuffer.CurrentSnapshot, i),
PointTrackingMode.Positive,
curBuffer,
PositionAffinity.Successor
);
}
}
bool submitLast = pasting.EndsWithOrdinal("\n");
if (inputPoint == null)
{
// we didn't find a point to insert, insert at the beginning.
inputPoint = new SnapshotPoint(curBuffer.CurrentSnapshot, 0);
}
// we want to insert the pasted code at the caret, but we also want to
// respect the stepping. So first grab the code before and after the caret.
var splitCode = JoinToCompleteStatements(SplitAndDedent(pasting), version).ToList();
curBuffer.Delete(new Span(0, curBuffer.CurrentSnapshot.Length));
bool supportMultiple = await window.GetSupportsMultipleStatements();
if (supportMultiple)
{
window.InsertCode(string.Join(Environment.NewLine, splitCode));
}
else if (splitCode.Count == 1)
{
curBuffer.Insert(0, splitCode[0]);
var viewPoint = view.BufferGraph.MapUpToBuffer(
new SnapshotPoint(curBuffer.CurrentSnapshot, Math.Min(inputPoint.Value.Position + pasting.Length, curBuffer.CurrentSnapshot.Length)),
PointTrackingMode.Positive,
PositionAffinity.Successor,
view.TextBuffer
);
if (viewPoint != null)
{
view.Caret.MoveTo(viewPoint.Value);
}
}
else if (splitCode.Count != 0)
{
var lastCode = splitCode[splitCode.Count - 1];
splitCode.RemoveAt(splitCode.Count - 1);
while (splitCode.Any())
{
var code = splitCode[0];
splitCode.RemoveAt(0);
await window.SubmitAsync(new[] { code });
supportMultiple = await window.GetSupportsMultipleStatements();
if (supportMultiple)
{
// Might have changed while we were executing
break;
}
}
if (supportMultiple)
{
// Insert all remaning lines of code
lastCode = string.Join(Environment.NewLine, splitCode);
}
window.InsertCode(lastCode);
}
else
{
window.InsertCode(pasting);
}
if (submitLast)
{
if (window.Evaluator.CanExecuteCode(window.CurrentLanguageBuffer.CurrentSnapshot.GetText()))
{
window.Operations.ExecuteInput();
}
else
{
window.InsertCode("\n");
}
}
}
private static IEnumerable <ICompletionListProvider> GetCompletionProviders(PaketDocument paketDocument, ITextStructureNavigator navigator, SnapshotPoint position, out CompletionContext context)
{
context = GetCompletionContext(paketDocument, navigator, position);
return(GetCompletionProviders(context.ContextType));
}