private ITrackingSpan FindTokenSpanAtPosition(ITrackingPoint point, ICompletionSession session)
{
SnapshotPoint currentPoint = (session.TextView.Caret.Position.BufferPosition);
ITextStructureNavigator navigator = _provider.NavigatorService.GetTextStructureNavigator(_textBuffer);
TextExtent extent = navigator.GetExtentOfWord(currentPoint);
return currentPoint.Snapshot.CreateTrackingSpan(extent.Span, SpanTrackingMode.EdgeInclusive);
}
private Model(
DisconnectedBufferGraph disconnectedBufferGraph,
IList<CompletionItem> totalItems,
IList<CompletionItem> filteredItems,
CompletionItem selectedItem,
bool isHardSelection,
bool isUnique,
bool useSuggestionCompletionMode,
CompletionItem builder,
CompletionItem defaultBuilder,
CompletionTriggerInfo triggerInfo,
ITrackingPoint commitSpanEndPoint,
bool dismissIfEmpty)
{
Contract.ThrowIfNull(selectedItem);
Contract.ThrowIfFalse(totalItems.Count != 0, "Must have at least one item.");
Contract.ThrowIfFalse(filteredItems.Count != 0, "Must have at least one filtered item.");
Contract.ThrowIfFalse(filteredItems.Contains(selectedItem) || defaultBuilder == selectedItem, "Selected item must be in filtered items.");
_disconnectedBufferGraph = disconnectedBufferGraph;
this.TotalItems = totalItems;
this.FilteredItems = filteredItems;
this.SelectedItem = selectedItem;
this.IsHardSelection = isHardSelection;
this.IsUnique = isUnique;
this.UseSuggestionCompletionMode = useSuggestionCompletionMode;
this.Builder = builder;
this.DefaultBuilder = defaultBuilder;
this.TriggerInfo = triggerInfo;
this.CommitTrackingSpanEndPoint = commitSpanEndPoint;
this.DismissIfEmpty = dismissIfEmpty;
}
private ITrackingSpan FindTokenSpanAtPosition(ITrackingPoint point, IIntellisenseSession session)
{
var currentPoint = (session.TextView.Caret.Position.BufferPosition) - 1;
var navigator = _sourceProvider.NavigatorService.GetTextStructureNavigator(_textBuffer);
var extent = navigator.GetExtentOfWord(currentPoint);
return currentPoint.Snapshot.CreateTrackingSpan(extent.Span, SpanTrackingMode.EdgeInclusive);
}
public override IEnumerable<INavigateToTarget> GoToSourceImpl(VSOBJGOTOSRCTYPE gotoSourceType, ITrackingPoint triggerPoint)
{
if (triggerPoint == null)
return new INavigateToTarget[0];
return base.GoToSourceImpl(gotoSourceType, triggerPoint);
}
private Model(
DisconnectedBufferGraph disconnectedBufferGraph,
IList<CompletionItem> totalItems,
IList<CompletionItem> filteredItems,
CompletionItem selectedItem,
ImmutableArray<CompletionItemFilter> completionItemFilters,
ImmutableDictionary<CompletionItemFilter, bool> filterState,
IReadOnlyDictionary<CompletionItem, string> completionItemToFilterText,
bool isHardSelection,
bool isUnique,
bool useSuggestionCompletionMode,
CompletionItem builder,
CompletionItem defaultBuilder,
CompletionTriggerInfo triggerInfo,
ITrackingPoint commitSpanEndPoint,
bool dismissIfEmpty)
{
Contract.ThrowIfFalse(totalItems.Count != 0, "Must have at least one item.");
_disconnectedBufferGraph = disconnectedBufferGraph;
this.TotalItems = totalItems;
this.FilteredItems = filteredItems;
this.FilterState = filterState;
this.SelectedItem = selectedItem;
this.CompletionItemFilters = completionItemFilters;
this.CompletionItemToFilterText = completionItemToFilterText;
this.IsHardSelection = isHardSelection;
this.IsUnique = isUnique;
this.UseSuggestionCompletionMode = useSuggestionCompletionMode;
this.Builder = builder;
this.DefaultBuilder = defaultBuilder;
this.TriggerInfo = triggerInfo;
this.CommitTrackingSpanEndPoint = commitSpanEndPoint;
this.DismissIfEmpty = dismissIfEmpty;
}
private ITrackingSpan FindTokenSpanAtPosition(ITrackingPoint point, ICompletionSession session, out bool isUpperCase)
{
SnapshotPoint currentPoint = (session.TextView.Caret.Position.BufferPosition) - 1;
ITextStructureNavigator navigator = sourceProvider.NavigatorService.GetTextStructureNavigator(textBuffer);
TextExtent extent = navigator.GetExtentOfWord(currentPoint);
string text = extent.Span.GetText();
string strText = navigator.GetExtentOfWord((session.TextView.Caret.Position.BufferPosition) - text.Length - 1).Span.GetText();
int uppercasePosition = 0;
int underscorePosition = 0;
if (NLAConfiguration.UnderscoreSeparator)
{
uppercasePosition = text.LastIndexOf("_");
if (uppercasePosition > 0)
{
uppercasePosition = uppercasePosition + 1; // get passed the underscore character
underscorePosition = uppercasePosition;
}
}
else if (NLAConfiguration.UpperCaseSeparator)
{
uppercasePosition = text.LastIndexOf(text.LastOrDefault(c => char.IsUpper(c)));
underscorePosition = uppercasePosition - 1;
}
isUpperCase = char.IsUpper(text[0]);
if (!NLAConfiguration.AllowInStrings)
{
var line = currentPoint.GetContainingLine();
var doubleQuote = line.GetText().IndexOf("\"");
var singleQuote = line.GetText().IndexOf("'");
if ((doubleQuote >= 0 && line.Start.Position + doubleQuote <= currentPoint.Position) || (singleQuote >= 0 && line.Start.Position + singleQuote <= currentPoint.Position))
{
return null;
}
}
if (uppercasePosition > 0)
{
var span = currentPoint.Snapshot.CreateTrackingSpan(extent.Span.Start.Position + uppercasePosition, text.Length - uppercasePosition, SpanTrackingMode.EdgeInclusive);
var underscoreSpan = currentPoint.Snapshot.CreateTrackingSpan(extent.Span.Start.Position + underscorePosition, text.Length - underscorePosition, SpanTrackingMode.EdgeInclusive);
if (!NLAConfiguration.UnderscoreSeparator && underscoreSpan.GetText(currentPoint.Snapshot).StartsWith("_")) // avoid this "word_Composition" when camel case is not active
{
return null;
}
text = span.GetText(currentPoint.Snapshot);
if (!String.IsNullOrEmpty(text))
{
isUpperCase = char.IsUpper(text[0]);
}
return span;
}
return currentPoint.Snapshot.CreateTrackingSpan(extent.Span, SpanTrackingMode.EdgeInclusive);
}
/// <summary>
/// Moves the cursor to the current mark in the location stack and moves the current mark to the location where the cursor mark was when the command was invoked.
/// </summary>
internal void SwapPointAndMark()
{
var previousActiveMark = this.activeMark;
this.activeMark = this.currentMark = CreateTrackingPoint(view.GetCaretPosition());
this.view.Caret.MoveTo(previousActiveMark.GetPoint(view.TextSnapshot));
this.IsActive = true;
UpdateSelection();
}
private ITrackingSpan FindTokenSpanAtPosition(ITrackingPoint point, ICompletionSession completionSession)
{
SnapshotPoint ssPoint = (completionSession.TextView.Caret.Position.BufferPosition) - 1;
ITextStructureNavigator navigator = sourceProvider.TextNavigatorService.GetTextStructureNavigator(this.textBuffer);
TextExtent textExtent = navigator.GetExtentOfWord(ssPoint);
return ssPoint.Snapshot.CreateTrackingSpan(textExtent.Span, SpanTrackingMode.EdgeInclusive);
}
public TypingAgent(RemoteAgentTag tag, string textToType, SnapshotPoint insertionPoint, Dispatcher dispatcher)
{
Tag = tag;
_textToType = textToType;
_insertionPoint = insertionPoint.Snapshot.CreateTrackingPoint(insertionPoint, PointTrackingMode.Positive);
_dispatcher = dispatcher;
}
internal MarkSession(ITextView view, EmacsCommandsManager manager)
{
this.manager = manager;
this.view = view;
this.view.Selection.SelectionChanged += new EventHandler(Selection_SelectionChanged);
this.activeMark = this.currentMark = CreateTrackingPoint(0);
}
public ISignatureHelpSession TriggerSignatureHelp(ITextView textView, ITrackingPoint triggerPoint, bool trackCaret) {
if (textView == null)
throw new ArgumentNullException(nameof(textView));
if (triggerPoint == null)
throw new ArgumentNullException(nameof(triggerPoint));
var session = CreateSignatureHelpSession(textView, triggerPoint, trackCaret);
session.Start();
return session.IsDismissed ? null : session;
}
public IQuickInfoSession TriggerQuickInfo(ITextView textView, ITrackingPoint triggerPoint, bool trackMouse) {
if (textView == null)
throw new ArgumentNullException(nameof(textView));
if (triggerPoint == null)
throw new ArgumentNullException(nameof(triggerPoint));
var session = CreateQuickInfoSession(textView, triggerPoint, trackMouse);
session.Start();
return session.IsDismissed ? null : session;
}
public IQuickInfoSession CreateQuickInfoSession(ITextView textView, ITrackingPoint triggerPoint, bool trackMouse) {
if (textView == null)
throw new ArgumentNullException(nameof(textView));
if (triggerPoint == null)
throw new ArgumentNullException(nameof(triggerPoint));
var stack = intellisenseSessionStackMapService.Value.GetStackForTextView(textView);
var session = new QuickInfoSession(textView, triggerPoint, trackMouse, intellisensePresenterFactoryService.Value, quickInfoSourceProviders);
stack.PushSession(session);
return session;
}
public static SnapshotPoint? GetTriggerPoint(ITextView textView, ITrackingPoint triggerPoint, ITextSnapshot textSnapshot) {
if (textView == null)
throw new ArgumentNullException(nameof(textView));
if (triggerPoint == null)
throw new ArgumentNullException(nameof(triggerPoint));
if (textSnapshot == null)
throw new ArgumentNullException(nameof(textSnapshot));
return triggerPoint.GetPoint(textView.TextSnapshot);
}
public ISignatureHelpSession CreateSignatureHelpSession(ITextView textView, ITrackingPoint triggerPoint, bool trackCaret) {
if (textView == null)
throw new ArgumentNullException(nameof(textView));
if (triggerPoint == null)
throw new ArgumentNullException(nameof(triggerPoint));
var stack = intellisenseSessionStackMapService.Value.GetStackForTextView(textView);
var session = new SignatureHelpSession(textView, triggerPoint, trackCaret, intellisensePresenterFactoryService.Value, signatureHelpSourceProviders);
currentLineSpaceReservationService.Value.SessionCreated(session);
stack.PushSession(session);
return session;
}
public ISmartTagSession CreateSmartTagSession(ITextView textView, SmartTagType type, ITrackingPoint triggerPoint, SmartTagState state) {
var session = new MockSmartTagSession(this) {
TextView = textView,
Type = type,
TriggerPoint = triggerPoint,
State = state
};
lock (_sessions) {
_sessions.Add(new KeyValuePair<ITextView, ISmartTagSession>(textView, session));
}
session.Dismissed += Session_Dismissed;
return session;
}
public static ITrackingPoint GetTriggerPoint(ITextView textView, ITrackingPoint triggerPoint, ITextBuffer textBuffer) {
if (textView == null)
throw new ArgumentNullException(nameof(textView));
if (triggerPoint == null)
throw new ArgumentNullException(nameof(triggerPoint));
if (textBuffer == null)
throw new ArgumentNullException(nameof(textBuffer));
var point = GetTriggerPoint(textView, triggerPoint, textBuffer.CurrentSnapshot);
if (point == null)
return null;
return point.Value.Snapshot.CreateTrackingPoint(point.Value.Position, PointTrackingMode.Negative);
}
public void Setup()
{
_stubSession = MockRepository.GenerateStub<ICompletionSession>();
_stubTextBuffer = MockRepository.GenerateStub<ITextBuffer>();
_stubViewExplorer = MockRepository.GenerateStub<IViewExplorer>();
_stubTrackingPoint = MockRepository.GenerateStub<ITrackingPoint>();
_stubTrackingSpan = MockRepository.GenerateStub<ITrackingSpan>();
_stubSnapshot = MockRepository.GenerateStub<ITextSnapshot>();
_stubTextBuffer.Stub(x => x.CurrentSnapshot).Return(_stubSnapshot);
_stubSession.Stub(x => x.GetTriggerPoint(_stubTextBuffer)).Return(_stubTrackingPoint);
_stubTrackingPoint.Stub(x => x.GetPoint(_stubSnapshot)).Return(new SnapshotPoint(_stubSnapshot, 0));
_stubViewExplorer.Stub(x => x.GetRelatedPartials()).Return(new List<string>());
}
/// <summary>
/// Finds the span of completion text to replace and use for searching.
/// </summary>
ITrackingSpan FindTokenSpanAtPosition(ITrackingPoint point, ICompletionSession session, CompletionMode mode)
{
var end = session.TextView.Caret.Position.BufferPosition;
var start = end;
var ch = start.GetChar();
while (start.Position > 0)
{
var temp = start - 1;
ch = temp.GetChar();
if (!(char.IsLetterOrDigit(ch) || ch == ':' || ch == '_') || ch == '"' || ch == '\'' || ch == '.')
break;
start = temp;
}
var span = Span.FromBounds(start.Position, end.Position);
return start.Snapshot.CreateTrackingSpan(span, SpanTrackingMode.EdgeInclusive);
}
void textView_MouseHover(object sender, MouseHoverEventArgs e)
{
SnapshotPoint?ssPoint = textView.BufferGraph.MapDownToFirstMatch(new SnapshotPoint(textView.TextSnapshot, e.Position),
PointTrackingMode.Positive,
snapshot => textBuffers.Contains(snapshot.TextBuffer),
PositionAffinity.Predecessor);
if (ssPoint != null)
{
ITrackingPoint point = ssPoint.Value.Snapshot.CreateTrackingPoint(ssPoint.Value.Position, PointTrackingMode.Positive);
if (!controllerProvider.QuickInfoBroker.IsQuickInfoActive(this.textView))
{
quickInfoSession = controllerProvider.QuickInfoBroker.TriggerQuickInfo(textView, point, true);
}
}
}
/// <summary>
/// Determine if the mouse is hovering over a token. If so, highlight the token and display QuickInfo
/// </summary>
private void OnTextViewMouseHover(object sender, MouseHoverEventArgs e)
{
SnapshotPoint?point = GetMousePosition(new SnapshotPoint(_textView.TextSnapshot, e.Position));
if (point != null)
{
ITrackingPoint triggerPoint = point.Value.Snapshot.CreateTrackingPoint(point.Value.Position,
PointTrackingMode.Positive);
// Find the broker for this buffer
if (!_componentContext.QuickInfoBroker.IsQuickInfoActive(_textView))
{
_componentContext.QuickInfoBroker.TriggerQuickInfoAsync(_textView, triggerPoint);
}
}
}
private void OnTextViewMouseHover(object sender, MouseHoverEventArgs e)
{
SnapshotPoint?point = GetMousePosition(new SnapshotPoint(TextView.TextSnapshot, e.Position));
if (point != null)
{
ITrackingPoint triggerPoint = point.Value.Snapshot.CreateTrackingPoint(point.Value.Position,
PointTrackingMode.Positive);
// Find the broker for this buffer
if (!Provider.QuickInfoBroker.IsQuickInfoActive(TextView))
{
Session = Provider.QuickInfoBroker.CreateQuickInfoSession(TextView, triggerPoint, true);
Session.Start();
}
}
}
private void OnTextViewMouseHover(object sender, MouseHoverEventArgs e)
{
// I don't really know what this is all for; but it's in the MSDN sample...
// http://msdn.microsoft.com/en-us/library/vstudio/ee197646(v=vs.120).aspx
SnapshotPoint?point = textView.BufferGraph.MapDownToFirstMatch(new SnapshotPoint(textView.TextSnapshot, e.Position), PointTrackingMode.Positive, snapshot => subjectBuffers.Contains(snapshot.TextBuffer), PositionAffinity.Predecessor);
if (point != null)
{
ITrackingPoint triggerPoint = point.Value.Snapshot.CreateTrackingPoint(point.Value.Position,
PointTrackingMode.Positive);
if (!provider.QuickInfoBroker.IsQuickInfoActive(textView))
{
session = provider.QuickInfoBroker.TriggerQuickInfo(textView, triggerPoint, true);
}
}
}
public static SnapshotPoint?GetTriggerPoint(ITextView textView, ITrackingPoint triggerPoint, ITextSnapshot textSnapshot)
{
if (textView is null)
{
throw new ArgumentNullException(nameof(textView));
}
if (triggerPoint is null)
{
throw new ArgumentNullException(nameof(triggerPoint));
}
if (textSnapshot is null)
{
throw new ArgumentNullException(nameof(textSnapshot));
}
return(triggerPoint.GetPoint(textView.TextSnapshot));
}
public ISignatureHelpSession CreateSignatureHelpSession(ITextView textView, ITrackingPoint triggerPoint, bool trackCaret)
{
if (textView == null)
{
throw new ArgumentNullException(nameof(textView));
}
if (triggerPoint == null)
{
throw new ArgumentNullException(nameof(triggerPoint));
}
var stack = intellisenseSessionStackMapService.Value.GetStackForTextView(textView);
var session = new SignatureHelpSession(textView, triggerPoint, trackCaret, intellisensePresenterFactoryService.Value, signatureHelpSourceProviders);
currentLineSpaceReservationService.Value.SessionCreated(session);
stack.PushSession(session);
return(session);
}
private void ProcessOutput(ITextSnapshot snapshot, ITrackingPoint startPoint, ITrackingPoint endPoint)
{
int textStart = startPoint.GetPosition(snapshot);
int textLength = endPoint.GetPoint(snapshot) - startPoint.GetPoint(snapshot);
string text = snapshot.GetText(textStart, textLength);
BindingEntry[] entries = this.bindingParser.ParseOutput(text);
if (entries.Length > 0)
{
this.JoinableTaskFactory.RunAsync(async delegate
{
await this.JoinableTaskFactory.SwitchToMainThreadAsync();
this.viewModel.AddEntries(entries);
}).FileAndForget(Constants.VsBindingPaneFeaturePrefix + nameof(this.ProcessOutput));
}
}
internal void PopMark()
{
if (marks.Count > 0)
{
if (currentMark != activeMark)
{
currentMark = activeMark;
}
activeMark = marks.Pop();
}
else
{
currentMark = activeMark = CreateTrackingPoint(0);
}
view.Caret.MoveTo(currentMark.GetPoint(view.TextSnapshot));
UpdateSelection();
}
void UpdateAtCaretPosition(CaretPosition caretPosition)
{
SnapshotPoint?point = caretPosition.Point.GetPoint(m_textView.TextSnapshot, caretPosition.Affinity);
if (point != null)
{
ITrackingPoint triggerPoint = point.Value.Snapshot.CreateTrackingPoint(point.Value.Position,
PointTrackingMode.Positive);
if (!m_provider.QuickInfoBroker.IsQuickInfoActive(m_textView))
{
m_session = m_provider.QuickInfoBroker.TriggerQuickInfo(m_textView, triggerPoint, true);
}
}
}
private void AsyncStartCompletionSession()
{
this.editorElement.Dispatcher.BeginInvoke(DispatcherPriority.Background, new DispatcherOperationCallback((object o) =>
{
ITrackingPoint trackingPoint = this.textView.TextBuffer.CurrentSnapshot.CreateTrackingPoint(this.textView.Caret.Position.Index, PointTrackingMode.Positive);
if (this.activeSession == null)
{
ICompletionSession completionSession = this.completionBroker.TriggerCompletion(trackingPoint);
ICompletionSession completionSession1 = completionSession;
this.activeSession = completionSession;
if (completionSession1 != null)
{
this.InitializeActiveCompletionSession();
}
}
return(null);
}), null);
}
private ITrackingSpan FindTokenSpanAtPosition(ITrackingPoint point, ICompletionSession session)
{
SnapshotPoint currentPoint = (session.TextView.Caret.Position.BufferPosition) - 1;
ITextStructureNavigator navigator = m_sourceProvider.NavigatorService.GetTextStructureNavigator(m_textBuffer);
// Extend the span until the first whitespace char occurs beforehand.
var currentExtent = navigator.GetExtentOfWord(currentPoint);
var lastPosition = currentExtent.Span.End;
while (!char.IsWhiteSpace(currentExtent.Span.Start.GetChar()))
{
currentExtent = navigator.GetExtentOfWord(currentExtent.Span.Start - 1);
}
var targetSpan = new SnapshotSpan(currentExtent.Span.End, lastPosition);
return(currentPoint.Snapshot.CreateTrackingSpan(targetSpan, SpanTrackingMode.EdgeInclusive));
}
private void OnTextViewMouseHover(object sender, MouseHoverEventArgs e)
{
SnapshotPoint?point = _textView.BufferGraph.MapDownToFirstMatch
(new SnapshotPoint(_textView.TextSnapshot, e.Position),
PointTrackingMode.Positive,
snapshot => _subjectBuffers.Contains(snapshot.TextBuffer),
PositionAffinity.Predecessor);
if (point != null)
{
ITrackingPoint triggerPoint = point.Value.Snapshot.CreateTrackingPoint(point.Value.Position, PointTrackingMode.Positive);
if (!_provider.QuickInfoBroker.IsQuickInfoActive(_textView))
{
_session = _provider.QuickInfoBroker.TriggerQuickInfo(_textView, triggerPoint, true);
}
}
}
public QuickInfoSession(ITextView textView, ITrackingPoint triggerPoint, bool trackMouse, IIntellisensePresenterFactoryService intellisensePresenterFactoryService, Lazy<IQuickInfoSourceProvider, IOrderableContentTypeMetadata>[] quickInfoSourceProviders) {
if (textView == null)
throw new ArgumentNullException(nameof(textView));
if (triggerPoint == null)
throw new ArgumentNullException(nameof(triggerPoint));
if (intellisensePresenterFactoryService == null)
throw new ArgumentNullException(nameof(intellisensePresenterFactoryService));
if (quickInfoSourceProviders == null)
throw new ArgumentNullException(nameof(quickInfoSourceProviders));
Properties = new PropertyCollection();
QuickInfoContent = new BulkObservableCollection<object>();
TextView = textView;
this.triggerPoint = triggerPoint;
TrackMouse = trackMouse;
this.intellisensePresenterFactoryService = intellisensePresenterFactoryService;
this.quickInfoSourceProviders = quickInfoSourceProviders;
TextView.Closed += TextView_Closed;
}
/// <summary>
/// Finds the token span at current position.
/// </summary>
/// <param name="point">The <see cref="ITrackingPoint"/>.</param>
/// <param name="session">The <see cref="ICompletionSession"/>.</param>
/// <returns>The <see cref="ITrackingSpan"/>.</returns>
private ITrackingSpan FindTokenSpanAtPosition(ITrackingPoint point, ICompletionSession session)
{
try
{
// Data validation
if (point == null || session == null)
{
return(null);
}
// Find the token span at current position
SnapshotPoint currentPoint = session.TextView.Caret.Position.BufferPosition - 1;
return(currentPoint.Snapshot.CreateTrackingSpan(currentPoint.Position, 1, SpanTrackingMode.EdgeInclusive));
}
catch (Exception)
{
}
return(null);
}
/// <summary>
/// Creates new instance of the <see cref="NestedPeekTriggeredEventArgs"/>.
/// </summary>
/// <param name="relationshipName">Case insensitive name of the relationship that was used to invoke nested Peek.</param>
/// <param name="peekableItems">The list of the <see cref="IPeekableItem"/> objects that can provide results of the
/// nested Peek invocation.</param>
public NestedPeekTriggeredEventArgs(string relationshipName, ITrackingPoint trackingPoint, IEnumerable <IPeekableItem> peekableItems)
{
if (string.IsNullOrWhiteSpace(relationshipName))
{
throw new ArgumentException("cannot be null or whitespace", nameof(relationshipName));
}
if (peekableItems == null)
{
throw new ArgumentNullException(nameof(peekableItems));
}
if (trackingPoint == null)
{
throw new ArgumentNullException(nameof(trackingPoint));
}
RelationshipName = relationshipName;
PeekableItems = peekableItems;
TrackingPoint = trackingPoint;
}
public CompletionSession(ITextView textView, ITrackingPoint triggerPoint, bool trackCaret, IIntellisensePresenterFactoryService intellisensePresenterFactoryService, Lazy<ICompletionSourceProvider, IOrderableContentTypeMetadata>[] completionSourceProviders) {
if (textView == null)
throw new ArgumentNullException(nameof(textView));
if (triggerPoint == null)
throw new ArgumentNullException(nameof(triggerPoint));
if (intellisensePresenterFactoryService == null)
throw new ArgumentNullException(nameof(intellisensePresenterFactoryService));
if (completionSourceProviders == null)
throw new ArgumentNullException(nameof(completionSourceProviders));
completionSets = new ObservableCollection<CompletionSet>();
CompletionSets = new ReadOnlyObservableCollection<CompletionSet>(completionSets);
Properties = new PropertyCollection();
TextView = textView;
this.triggerPoint = triggerPoint;
this.intellisensePresenterFactoryService = intellisensePresenterFactoryService;
this.completionSourceProviders = completionSourceProviders;
//TODO: Use trackCaret
TextView.Closed += TextView_Closed;
}
public int InsertNamedExpansion(string pszTitle, string pszPath, TextSpan textSpan)
{
if (_session != null)
{
// if the user starts an expansion session while one is in progress
// then abort the current expansion session
_session.EndCurrentExpansion(1);
_session = null;
}
var expansion = _lines as IVsExpansion;
if (expansion == null)
{
return(VSConstants.S_OK);
}
var selection = _textView.Selection;
var snapshot = selection.Start.Position.Snapshot;
_selectionStart = snapshot.CreateTrackingPoint(selection.Start.Position, PointTrackingMode.Positive);
_selectionEnd = snapshot.CreateTrackingPoint(selection.End.Position, PointTrackingMode.Negative);
_selectEndSpan = _sessionEnded = false;
var hr = expansion.InsertNamedExpansion(
pszTitle,
pszPath,
textSpan,
this,
new Guid(GuidList.PowerShellLanguage),
0,
out _session
);
if (ErrorHandler.Succeeded(hr))
{
if (_sessionEnded)
{
_session = null;
}
}
return(VSConstants.S_OK);
}
// TODO Investigate ITrackingPoint for updating TODO state. (edit).
// TODO by Friday See if can use tracking to update line number of reminder.
/*
* SnapshotPoint? point = textView.BufferGraph.MapDownToFirstMatch(
* new SnapshotPoint(textView.TextSnapshot, e.Position),
* PointTrackingMode.Positive,
* snapshot => textBuffers.Contains(snapshot.TextBuffer),
* PositionAffinity.Predecessor
* );
* if ( point != null ) {
* ITrackingPoint triggerPoint = point.Value.Snapshot.CreateTrackingPoint(
* point.Value.Position, PointTrackingMode.Positive);
* if ( provider.QuickInfoBroker.IsQuickInfoActive(textView) ) {
* session = provider.QuickInfoBroker.TriggerQuickInfo(textView, triggerPoint, true);
* }
* }*/
void createTrackingPointTest(SnapshotPoint point, ITextView textView)
{
if (point != null)
{
ITrackingPoint triggerPoint = point.Snapshot.CreateTrackingPoint(
point.Position, PointTrackingMode.Positive);
//var updatedPoint = triggerPoint.GetPoint( textView.TextSnapshot );
}
//SnapshotPoint? point = textView.BufferGraph.MapDownToFirstMatch(
// new SnapshotPoint(textView.TextSnapshot, e.Position),
// PointTrackingMode.Positive,
// snapshot => textView.BufferGraph.GetTextBuffers( null ).Contains(snapshot.TextBuffer),
// PositionAffinity.Predecessor
//);
//if ( provider.QuickInfoBroker.IsQuickInfoActive(textView) ) {
// session = provider.QuickInfoBroker.TriggerQuickInfo(textView, triggerPoint, true);
}
void TextView_MouseHover(object sender, MouseHoverEventArgs e)
{
// find the mouse position by mapping down to the subject buffer
SnapshotPoint?point = this.textView.BufferGraph.MapDownToFirstMatch
(new SnapshotPoint(this.textView.TextSnapshot, e.Position),
PointTrackingMode.Positive,
snapshot => this.subjectBuffers.Contains(snapshot.TextBuffer),
PositionAffinity.Predecessor);
if (point != null)
{
ITrackingPoint triggerPoint = point.Value.Snapshot.CreateTrackingPoint(point.Value.Position, PointTrackingMode.Positive);
if (!this.provider.QuickInfoBroker.IsQuickInfoActive(this.textView))
{
this.session = this.provider.QuickInfoBroker.TriggerQuickInfo(this.textView, triggerPoint, true);
}
}
}
/// <summary>
/// Moves the cursor to the current mark and then removes the mark for the location stack.
/// </summary>
internal void PopMark()
{
if (this.marks.Count > 0)
{
if (this.currentMark != activeMark)
{
this.currentMark = activeMark;
}
this.activeMark = this.marks.Pop();
}
else
{
this.currentMark = activeMark = CreateTrackingPoint(0);
}
this.view.Caret.MoveTo(currentMark.GetPoint(this.view.TextSnapshot));
this.UpdateSelection();
}
private void AddTrackingPoint(CaretPosition caretPosition)
{
ITrackingPoint trackingPoint = _view.TextSnapshot.CreateTrackingPoint(caretPosition.BufferPosition.Position, PointTrackingMode.Positive);
if (trackingPoint.GetPosition(_view.TextSnapshot) >= 0)
{
_trackPointList.Add(trackingPoint);
}
else
{
trackingPoint = _view.TextSnapshot.CreateTrackingPoint(0, PointTrackingMode.Positive);
_trackPointList.Add(trackingPoint);
}
if (caretPosition.VirtualSpaces > 0)
{
_view.Caret.MoveTo(trackingPoint.GetPoint(_view.TextSnapshot));
}
}
internal void ApplyStashedCaretPosition()
{
if (!Selections.Any(
s => s.Caret.GetPoint(Snapshot).Position
== stashedCaretPosition.GetPoint(Snapshot).Position)
)
{
Selections.Add(
new Selection
{
Start = null,
End = null,
Caret = stashedCaretPosition
}
);
}
stashedCaretPosition = null;
}
/// <summary>
/// Initializes a new instance of the <see cref="InlineCommentPeekViewModel"/> class.
/// </summary>
public InlineCommentPeekViewModel(IInlineCommentPeekService peekService,
IPeekSession peekSession,
IPullRequestSessionManager sessionManager,
INextInlineCommentCommand nextCommentCommand,
IPreviousInlineCommentCommand previousCommentCommand,
IViewViewModelFactory factory)
{
Guard.ArgumentNotNull(peekService, nameof(peekService));
Guard.ArgumentNotNull(peekSession, nameof(peekSession));
Guard.ArgumentNotNull(sessionManager, nameof(sessionManager));
Guard.ArgumentNotNull(nextCommentCommand, nameof(nextCommentCommand));
Guard.ArgumentNotNull(previousCommentCommand, nameof(previousCommentCommand));
Guard.ArgumentNotNull(factory, nameof(factory));
this.peekService = peekService;
this.peekSession = peekSession;
this.sessionManager = sessionManager;
this.factory = factory;
triggerPoint = peekSession.GetTriggerPoint(peekSession.TextView.TextBuffer);
peekSession.Dismissed += (s, e) => Dispose();
Close = this.WhenAnyValue(x => x.Thread)
.Where(x => x != null)
.SelectMany(x => x.IsNewThread
? x.Comments.Single().CancelEdit.SelectUnit()
: Observable.Never <Unit>());
NextComment = ReactiveCommand.CreateFromTask(
() => nextCommentCommand.Execute(new InlineCommentNavigationParams
{
FromLine = peekService.GetLineNumber(peekSession, triggerPoint).Item1,
}),
Observable.Return(nextCommentCommand.Enabled));
PreviousComment = ReactiveCommand.CreateFromTask(
() => previousCommentCommand.Execute(new InlineCommentNavigationParams
{
FromLine = peekService.GetLineNumber(peekSession, triggerPoint).Item1,
}),
Observable.Return(previousCommentCommand.Enabled));
}
public void PushSession(IBraceCompletionSession session)
{
ITextView view = null;
ITextBuffer buffer = null;
_guardedOperations.CallExtensionPoint(() =>
{
view = session.TextView;
buffer = session.SubjectBuffer;
});
if (view != null && buffer != null)
{
SetCurrentBuffer(buffer);
bool validStart = false;
// start the session to add the closing brace
_guardedOperations.CallExtensionPoint(() =>
{
session.Start();
// verify the session is valid before going on.
// some sessions may want to leave the stack at this point
validStart = (session.OpeningPoint != null && session.ClosingPoint != null);
});
if (validStart)
{
// highlight the brace
ITrackingPoint closingPoint = null;
_guardedOperations.CallExtensionPoint(() =>
{
closingPoint = session.ClosingPoint;
});
HighlightSpan(closingPoint);
// put it on the stack for tracking
_stack.Push(session);
}
}
}
private void OnTextViewMouseHover(object sender, MouseHoverEventArgs e)
{
//find the mouse position by mapping down to the subject buffer
SnapshotPoint?point = m_textView.BufferGraph.MapDownToFirstMatch
(new SnapshotPoint(m_textView.TextSnapshot, e.Position),
PointTrackingMode.Positive,
snapshot => m_subjectBuffers.Contains(snapshot.TextBuffer),
PositionAffinity.Predecessor);
if (point != null)
{
ITrackingPoint triggerPoint = point.Value.Snapshot.CreateTrackingPoint(point.Value.Position, PointTrackingMode.Positive);
if (!m_provider.QuickInfoBroker.IsQuickInfoActive(m_textView)) // check the quick info feather is enable in this textView
{
/// Trigger QUickInfoProvider below
m_session = m_provider.QuickInfoBroker.TriggerQuickInfo(m_textView, triggerPoint, true);
}
}
}
/// <summary>
/// Finds the span of completion text to replace and use for searching.
/// </summary>
ITrackingSpan FindTokenSpanAtPosition(ITrackingPoint point, ICompletionSession session, CompletionMode mode)
{
var end = session.TextView.Caret.Position.BufferPosition;
var start = end;
var ch = start.GetChar();
while (start.Position > 0)
{
var temp = start - 1;
ch = temp.GetChar();
if (!(char.IsLetterOrDigit(ch) || ch == ':' || ch == '_') || ch == '"' || ch == '\'' || ch == '.')
{
break;
}
start = temp;
}
var span = Span.FromBounds(start.Position, end.Position);
return(start.Snapshot.CreateTrackingSpan(span, SpanTrackingMode.EdgeInclusive));
}
public SignatureHelpSession(ITextView textView, ITrackingPoint triggerPoint, bool trackCaret, IIntellisensePresenterFactoryService intellisensePresenterFactoryService, Lazy<ISignatureHelpSourceProvider, IOrderableContentTypeMetadata>[] signatureHelpSourceProviders) {
if (textView == null)
throw new ArgumentNullException(nameof(textView));
if (triggerPoint == null)
throw new ArgumentNullException(nameof(triggerPoint));
if (intellisensePresenterFactoryService == null)
throw new ArgumentNullException(nameof(intellisensePresenterFactoryService));
if (signatureHelpSourceProviders == null)
throw new ArgumentNullException(nameof(signatureHelpSourceProviders));
Properties = new PropertyCollection();
TextView = textView;
this.triggerPoint = triggerPoint;
this.trackCaret = trackCaret;
this.intellisensePresenterFactoryService = intellisensePresenterFactoryService;
this.signatureHelpSourceProviders = signatureHelpSourceProviders;
signatures = new ObservableCollection<ISignature>();
Signatures = new ReadOnlyObservableCollection<ISignature>(signatures);
TextView.Closed += TextView_Closed;
}
private void ProcessOutput(ITextSnapshot snapshot, ITrackingPoint startPoint, ITrackingPoint endPoint)
{
int textStart = startPoint.GetPosition(snapshot);
int textLength = endPoint.GetPoint(snapshot) - startPoint.GetPoint(snapshot);
string text = snapshot.GetText(textStart, textLength);
IReadOnlyList <ITableEntry> entries = this.outputParser.ParseOutput(text);
if (entries.Count > 0)
{
this.package.JoinableTaskFactory.RunAsync(async delegate
{
await this.package.JoinableTaskFactory.SwitchToMainThreadAsync();
if (this.viewModel.AddEntries(entries))
{
this.NotifyUserAboutNewEntries();
}
}).FileAndForget(Constants.VsBindingPaneFeaturePrefix + nameof(this.ProcessOutput));
}
}
/// <summary>
/// Called when [text view mouse hover].
/// </summary>
/// <param name = "sender">The sender.</param>
/// <param name = "e">The <see cref = "Microsoft.VisualStudio.Text.Editor.MouseHoverEventArgs" /> instance containing the event data.</param>
private void OnTextViewMouseHover(object sender, MouseHoverEventArgs e)
{
SnapshotPoint?point = GetMousePosition(new SnapshotPoint(_TextView.TextSnapshot, e.Position));
if (!point.HasValue)
{
return;
}
ITrackingPoint triggerPoint = point.Value.Snapshot.CreateTrackingPoint(point.Value.Position,
PointTrackingMode.Positive);
// Find the broker for this buffer
if (!_ComponentContext.QuickInfoBroker.IsQuickInfoActive(_TextView))
{
_Session = _ComponentContext.QuickInfoBroker.CreateQuickInfoSession(_TextView, triggerPoint, true);
_Session.Start();
}
}
internal void SelectNextWord()
{
_view.Selection.Clear();
_view.Caret.IsHidden = true;
// Faz com que o "cursor" vá para o final da palavra, pois aqui é SelectNextWord, ou seja a próxima palavra
for (int i = 0; i < _trackPointList.Count; i++)
{
ITrackingPoint cursorPos = _trackPointList[i];
WordPosition nextWord = WordPosition.NextWord(_view.TextViewLines.FormattedSpan.GetText(), cursorPos.GetPosition(_view.TextSnapshot));
int newCursorPosition = ((_trackPointList[i].GetPosition(_view.TextSnapshot) + nextWord.Word.Length) < _view.TextViewLines.FormattedSpan.GetText().Length) && (nextWord.Word.Length > 0) ?
(_trackPointList[i].GetPosition(_view.TextSnapshot) + nextWord.Word.Length) :
_view.TextViewLines.FormattedSpan.GetText().Length - 1;
_trackPointList[i] = _view.TextSnapshot.CreateTrackingPoint(new SnapshotPoint(_view.TextSnapshot, newCursorPosition), PointTrackingMode.Positive);
if (_selectionList.Count < _trackPointList.Count)
{
_selectionList.Add(new TextSelection(
new Tuple <ITrackingPoint, ITrackingPoint>
(
_view.TextSnapshot.CreateTrackingPoint(new SnapshotPoint(_view.TextSnapshot, nextWord.Start), PointTrackingMode.Positive),
_view.TextSnapshot.CreateTrackingPoint(new SnapshotPoint(_view.TextSnapshot, nextWord.End), PointTrackingMode.Positive)
),
_view));
}
else
{
_selectionList[i].Move(newCursorPosition);
}
}
Selecting = true;
RedrawScreen();
// Diz que está editando
Editing = true;
}
// Bug #512117: Remove compatibility shims for 2nd gen. Quick Info APIs.
// This overload exists only to expose additional functionality required
// by the shims.
#region ILegacyQuickInfoBrokerSupport
public async Task <IAsyncQuickInfoSession> TriggerQuickInfoAsync(
ITextView textView,
ITrackingPoint triggerPoint,
QuickInfoSessionOptions options,
PropertyCollection propertyCollection,
CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
// Dismiss any currently open session.
var currentSession = this.GetSession(textView);
if (currentSession != null)
{
await currentSession.DismissAsync().ConfigureAwait(true);
}
triggerPoint = await this.ResolveAndMapUpTriggerPointAsync(textView, triggerPoint, cancellationToken).ConfigureAwait(false);
if (triggerPoint == null)
{
return(null);
}
var newSession = new AsyncQuickInfoPresentationSession(
this.OrderedSourceProviders,
this.guardedOperations,
this.joinableTaskContext,
this.toolTipService,
textView,
triggerPoint,
options,
propertyCollection);
// StartAsync() is responsible for dispatching a StateChange
// event if canceled so no need to clean these up on cancellation.
newSession.StateChanged += this.OnStateChanged;
textView.Properties.AddProperty(typeof(AsyncQuickInfoPresentationSession), newSession);
return(await StartQuickInfoSessionAsync(newSession, cancellationToken).ConfigureAwait(false));
}
internal SnapshotPoint ApplyStashedCaretPosition()
{
var stashedCaretPosition = StashedCaret.GetPosition(Snapshot);
var position = view.Caret.Position.BufferPosition;
view.Caret.MoveTo(StashedCaret.GetPoint(Snapshot));
if (!Selections.Any(s => s.Caret.GetPoint(Snapshot) == stashedCaretPosition))
{
Selections.Add(
new Selection
{
Caret = StashedCaret,
ColumnPosition = GetColumnPosition()
}
);
}
StashedCaret = null;
return(position);
}
private Model(
DisconnectedBufferGraph disconnectedBufferGraph,
CompletionList originalList,
ImmutableArray<PresentationItem> totalItems,
ImmutableArray<PresentationItem> filteredItems,
PresentationItem selectedItem,
ImmutableArray<CompletionItemFilter> completionItemFilters,
ImmutableDictionary<CompletionItemFilter, bool> filterState,
IReadOnlyDictionary<CompletionItem, string> completionItemToFilterText,
bool isHardSelection,
bool isUnique,
bool useSuggestionMode,
PresentationItem suggestionModeItem,
PresentationItem defaultSuggestionModeItem,
CompletionTrigger trigger,
ITrackingPoint commitSpanEndPoint,
bool dismissIfEmpty)
{
Contract.ThrowIfNull(selectedItem);
Contract.ThrowIfFalse(totalItems.Length != 0, "Must have at least one item.");
Contract.ThrowIfFalse(filteredItems.Length != 0, "Must have at least one filtered item.");
Contract.ThrowIfFalse(filteredItems.Contains(selectedItem) || defaultSuggestionModeItem == selectedItem, "Selected item must be in filtered items.");
_disconnectedBufferGraph = disconnectedBufferGraph;
this.OriginalList = originalList;
this.TotalItems = totalItems;
this.FilteredItems = filteredItems;
this.FilterState = filterState;
this.SelectedItem = selectedItem;
this.CompletionItemFilters = completionItemFilters;
this.CompletionItemToFilterText = completionItemToFilterText;
this.IsHardSelection = isHardSelection;
this.IsUnique = isUnique;
this.UseSuggestionMode = useSuggestionMode;
this.SuggestionModeItem = suggestionModeItem;
this.DefaultSuggestionModeItem = defaultSuggestionModeItem;
this.Trigger = trigger;
this.CommitTrackingSpanEndPoint = commitSpanEndPoint;
this.DismissIfEmpty = dismissIfEmpty;
}
private Model(
DisconnectedBufferGraph disconnectedBufferGraph,
CompletionList originalList,
ImmutableArray <PresentationItem> totalItems,
ImmutableArray <PresentationItem> filteredItems,
PresentationItem selectedItem,
ImmutableArray <CompletionItemFilter> completionItemFilters,
ImmutableDictionary <CompletionItemFilter, bool> filterState,
IReadOnlyDictionary <CompletionItem, string> completionItemToFilterText,
bool isHardSelection,
bool isUnique,
bool useSuggestionMode,
PresentationItem suggestionModeItem,
PresentationItem defaultSuggestionModeItem,
CompletionTrigger trigger,
ITrackingPoint commitSpanEndPoint,
bool dismissIfEmpty)
{
Contract.ThrowIfNull(selectedItem);
Contract.ThrowIfFalse(totalItems.Length != 0, "Must have at least one item.");
Contract.ThrowIfFalse(filteredItems.Length != 0, "Must have at least one filtered item.");
Contract.ThrowIfFalse(filteredItems.Contains(selectedItem) || defaultSuggestionModeItem == selectedItem, "Selected item must be in filtered items.");
_disconnectedBufferGraph = disconnectedBufferGraph;
this.OriginalList = originalList;
this.TotalItems = totalItems;
this.FilteredItems = filteredItems;
this.FilterState = filterState;
this.SelectedItem = selectedItem;
this.CompletionItemFilters = completionItemFilters;
this.CompletionItemToFilterText = completionItemToFilterText;
this.IsHardSelection = isHardSelection;
this.IsUnique = isUnique;
this.UseSuggestionMode = useSuggestionMode;
this.SuggestionModeItem = suggestionModeItem;
this.DefaultSuggestionModeItem = defaultSuggestionModeItem;
this.Trigger = trigger;
this.CommitTrackingSpanEndPoint = commitSpanEndPoint;
this.DismissIfEmpty = dismissIfEmpty;
}
public static SyntaxNode GetAnyCallNodeAboveTriggerPoint(ITrackingPoint triggerPoint, ITextSnapshot snapshot, SyntaxTree parseTree) {
Contract.Requires(snapshot != null);
Contract.Requires(parseTree != null);
Contract.Requires(triggerPoint != null);
SyntaxNode syntaxRoot;
if (!parseTree.TryGetRoot(out syntaxRoot))
return null;
var leafNode = syntaxRoot.FindToken(triggerPoint.GetPosition(snapshot), false);
if (leafNode.IsKind(SyntaxKind.None))
return null;
//Is anyone in our ancestry a call node?
var nodeInQuestion = leafNode.Parent;
SyntaxNode ptn = null;
while (nodeInQuestion != null) {
//Is the node in question a node call?
var asCall = nodeInQuestion as InvocationExpressionSyntax;
if (asCall != null) {
ptn = asCall;
break;
}
var asCtorCall = nodeInQuestion as ObjectCreationExpressionSyntax;
if (asCtorCall != null) {
ptn = asCtorCall;
break;
}
//Climb higher up our ancestry for the next iteration
nodeInQuestion = nodeInQuestion.Parent;
}
//Did we successfully find a call node?
return ptn;
}
private Model(
Document triggerDocument,
DisconnectedBufferGraph disconnectedBufferGraph,
CompletionList originalList,
ImmutableArray<CompletionItem> filteredItems,
CompletionItem selectedItem,
ImmutableArray<CompletionItemFilter> completionItemFilters,
ImmutableDictionary<CompletionItemFilter, bool> filterState,
string filterText,
bool isHardSelection,
bool isUnique,
bool useSuggestionMode,
CompletionItem suggestionModeItem,
CompletionTrigger trigger,
ITrackingPoint commitSpanEndPoint,
bool dismissIfEmpty)
{
Contract.ThrowIfFalse(originalList.Items.Length != 0, "Must have at least one item.");
Contract.ThrowIfNull(selectedItem);
this.TriggerDocument = triggerDocument;
_disconnectedBufferGraph = disconnectedBufferGraph;
this.OriginalList = originalList;
this.FilteredItems = filteredItems;
this.FilterState = filterState;
this.SelectedItem = selectedItem;
this.CompletionItemFilters = completionItemFilters;
this.FilterText = filterText;
this.IsHardSelection = isHardSelection;
this.IsUnique = isUnique;
this.Trigger = trigger;
this.CommitTrackingSpanEndPoint = commitSpanEndPoint;
this.DismissIfEmpty = dismissIfEmpty;
this.UseSuggestionMode = useSuggestionMode;
this.SuggestionModeItem = suggestionModeItem ?? CreateDefaultSuggestionModeItem();
}
public MockTrackingSpan(MockTextSnapshot snapshot, int start, int length, SpanTrackingMode trackingMode = SpanTrackingMode.EdgeExclusive) {
_start = start;
_length = length;
_snapshot = snapshot;
_trackingMode = trackingMode;
switch(_trackingMode) {
case SpanTrackingMode.EdgeExclusive:
_startPoint = new MockTrackingPoint(snapshot, start, PointTrackingMode.Positive);
_endPoint = new MockTrackingPoint(snapshot, start + length, PointTrackingMode.Negative);
break;
case SpanTrackingMode.EdgeInclusive:
_startPoint = new MockTrackingPoint(snapshot, start, PointTrackingMode.Negative);
_endPoint = new MockTrackingPoint(snapshot, start + length, PointTrackingMode.Positive);
break;
case SpanTrackingMode.EdgeNegative:
_startPoint = new MockTrackingPoint(snapshot, start, PointTrackingMode.Negative);
_endPoint = new MockTrackingPoint(snapshot, start + length, PointTrackingMode.Negative);
break;
case SpanTrackingMode.EdgePositive:
_startPoint = new MockTrackingPoint(snapshot, start, PointTrackingMode.Positive);
_endPoint = new MockTrackingPoint(snapshot, start + length, PointTrackingMode.Positive);
break;
}
}
/// <summary>
/// Gets a CompletionList providing a list of possible members the user can dot through.
/// </summary>
internal static CompletionAnalysis GetCompletions(IServiceProvider serviceProvider, ITextSnapshot snapshot, ITrackingSpan span, ITrackingPoint point, CompletionOptions options) {
return TrySpecialCompletions(serviceProvider, snapshot, span, point, options) ??
GetNormalCompletionContext(serviceProvider, snapshot, span, point, options);
}
private static bool IsSpaceCompletion(ITextSnapshot snapshot, ITrackingPoint loc) {
var pos = loc.GetPosition(snapshot);
if (pos > 0) {
return snapshot.GetText(pos - 1, 1) == " ";
}
return false;
}
private static CompletionAnalysis GetNormalCompletionContext(IServiceProvider serviceProvider, ITextSnapshot snapshot, ITrackingSpan applicableSpan, ITrackingPoint point, CompletionOptions options) {
var span = applicableSpan.GetSpan(snapshot);
if (IsSpaceCompletion(snapshot, point) && !IntellisenseController.ForceCompletions) {
return CompletionAnalysis.EmptyCompletionContext;
}
var parser = new ReverseExpressionParser(snapshot, snapshot.TextBuffer, applicableSpan);
if (parser.IsInGrouping()) {
options = options.Clone();
options.IncludeStatementKeywords = false;
}
return new NormalCompletionAnalysis(
snapshot.TextBuffer.GetAnalyzer(serviceProvider),
snapshot,
applicableSpan,
snapshot.TextBuffer,
options,
serviceProvider
);
}
private static CompletionAnalysis TrySpecialCompletions(IServiceProvider serviceProvider, ITextSnapshot snapshot, ITrackingSpan span, ITrackingPoint point, CompletionOptions options) {
var snapSpan = span.GetSpan(snapshot);
var buffer = snapshot.TextBuffer;
var classifier = buffer.GetPythonClassifier();
if (classifier == null) {
return null;
}
var parser = new ReverseExpressionParser(snapshot, buffer, span);
var statementRange = parser.GetStatementRange();
if (!statementRange.HasValue) {
statementRange = snapSpan.Start.GetContainingLine().Extent;
}
if (snapSpan.Start < statementRange.Value.Start) {
return null;
}
var tokens = classifier.GetClassificationSpans(new SnapshotSpan(statementRange.Value.Start, snapSpan.Start));
if (tokens.Count > 0) {
// Check for context-sensitive intellisense
var lastClass = tokens[tokens.Count - 1];
if (lastClass.ClassificationType == classifier.Provider.Comment) {
// No completions in comments
return CompletionAnalysis.EmptyCompletionContext;
} else if (lastClass.ClassificationType == classifier.Provider.StringLiteral) {
// String completion
if (lastClass.Span.Start.GetContainingLine().LineNumber == lastClass.Span.End.GetContainingLine().LineNumber) {
return new StringLiteralCompletionList(span, buffer, options);
} else {
// multi-line string, no string completions.
return CompletionAnalysis.EmptyCompletionContext;
}
} else if (lastClass.ClassificationType == classifier.Provider.Operator &&
lastClass.Span.GetText() == "@") {
if (tokens.Count == 1) {
return new DecoratorCompletionAnalysis(span, buffer, options);
}
// TODO: Handle completions automatically popping up
// after '@' when it is used as a binary operator.
} else if (CompletionAnalysis.IsKeyword(lastClass, "def")) {
return new OverrideCompletionAnalysis(span, buffer, options);
}
// Import completions
var first = tokens[0];
if (CompletionAnalysis.IsKeyword(first, "import")) {
return ImportCompletionAnalysis.Make(tokens, span, buffer, options);
} else if (CompletionAnalysis.IsKeyword(first, "from")) {
return FromImportCompletionAnalysis.Make(tokens, span, buffer, options);
} else if (CompletionAnalysis.IsKeyword(first, "raise") || CompletionAnalysis.IsKeyword(first, "except")) {
if (tokens.Count == 1 ||
lastClass.ClassificationType.IsOfType(PythonPredefinedClassificationTypeNames.Comma) ||
(lastClass.IsOpenGrouping() && tokens.Count < 3)) {
return new ExceptionCompletionAnalysis(span, buffer, options);
}
}
return null;
} else if ((tokens = classifier.GetClassificationSpans(snapSpan.Start.GetContainingLine().ExtentIncludingLineBreak)).Count > 0 &&
tokens[0].ClassificationType == classifier.Provider.StringLiteral) {
// multi-line string, no string completions.
return CompletionAnalysis.EmptyCompletionContext;
} else if (snapshot.IsReplBufferWithCommand()) {
return CompletionAnalysis.EmptyCompletionContext;
}
return null;
}