IAsyncCompletionItemManager GetNextProvider(ITextView textView, IContentType contentType, ITextViewRoleSet roles)
{
bool foundThis = false;
var nextProvider = OrderedCompletionItemManagerProviders
.Where(p => {
if (!foundThis)
{
if (p.Metadata.Name == nameof(MSBuildCompletionItemManagerProvider))
{
foundThis = true;
}
return(false);
}
if (!p.Metadata.ContentTypes.Any(c => contentType.IsOfType(c)))
{
return(false);
}
if (p.Metadata.TextViewRoles != null && roles != null && !roles.ContainsAny(p.Metadata.TextViewRoles))
{
return(false);
}
return(true);
}).First();
var nextManager = nextProvider.Value.GetOrCreate(textView);
return(nextManager);
}
public List <Lazy <IDiagnosticPanelFactory, IDiagnosticPanelFactoryMetadataView> > GetApplicablePanels(IContentType contentType, ITextViewRoleSet viewRoles)
{
var applicableFactories = new List <Lazy <IDiagnosticPanelFactory, IDiagnosticPanelFactoryMetadataView> >();
foreach (var factoryHandle in this.orderedPanelFactories)
{
bool contentTypeMatch = false;
foreach (string contentTypeName in factoryHandle.Metadata.ContentTypes)
{
if (contentType.IsOfType(contentTypeName))
{
contentTypeMatch = true;
break;
}
}
if (contentTypeMatch)
{
if (viewRoles.ContainsAny(factoryHandle.Metadata.TextViewRoles))
{
applicableFactories.Add(factoryHandle);
}
}
}
return(applicableFactories);
}
/// <summary>
/// Given a list of extensions that provide text view roles, filter the list and return that
/// subset which matches at least one of the roles in the provided set of roles.
/// </summary>
public static List <Lazy <TProvider, TMetadataView> > SelectMatchingExtensions <TProvider, TMetadataView>
(IEnumerable <Lazy <TProvider, TMetadataView> > providerHandles,
ITextViewRoleSet viewRoles)
where TMetadataView : ITextViewRoleMetadata // text view role is required
{
var result = new List <Lazy <TProvider, TMetadataView> >();
foreach (var providerHandle in providerHandles)
{
IEnumerable <string> providerRoles = providerHandle.Metadata.TextViewRoles;
if (viewRoles.ContainsAny(providerRoles))
{
result.Add(providerHandle);
}
}
return(result);
}
/// <summary>
/// Given a list of extensions that provide text view roles and content types, filter the list and return that
/// subset which matches the content types and at least one of the roles in the provided set of roles.
/// </summary>
public static List <Lazy <TProvider, TMetadataView> > SelectMatchingExtensions <TProvider, TMetadataView>
(IEnumerable <Lazy <TProvider, TMetadataView> > providerHandles,
IContentType documentContentType,
IContentType excludedContentType,
ITextViewRoleSet viewRoles)
where TMetadataView : IContentTypeAndTextViewRoleMetadata // both content type and text view role are required
{
var result = new List <Lazy <TProvider, TMetadataView> >();
foreach (var providerHandle in providerHandles)
{
// first, check content type match
if ((excludedContentType == null || !ExtensionSelector.ContentTypeMatch(excludedContentType, providerHandle.Metadata.ContentTypes)) &&
ExtensionSelector.ContentTypeMatch(documentContentType, providerHandle.Metadata.ContentTypes) &&
viewRoles.ContainsAny(providerHandle.Metadata.TextViewRoles))
{
result.Add(providerHandle);
}
}
return(result);
}
#pragma warning restore 0169
public WpfTextView(ITextViewModel textViewModel, ITextViewRoleSet roles, IEditorOptions parentOptions, IEditorOptionsFactoryService editorOptionsFactoryService, ICommandManager commandManager, ISmartIndentationService smartIndentationService, IFormattedTextSourceFactoryService formattedTextSourceFactoryService, IViewClassifierAggregatorService viewClassifierAggregatorService, ITextAndAdornmentSequencerFactoryService textAndAdornmentSequencerFactoryService, IClassificationFormatMapService classificationFormatMapService, IEditorFormatMapService editorFormatMapService, IAdornmentLayerDefinitionService adornmentLayerDefinitionService, ILineTransformProviderService lineTransformProviderService, Lazy <IWpfTextViewCreationListener, IDeferrableContentTypeAndTextViewRoleMetadata>[] wpfTextViewCreationListeners)
{
if (textViewModel == null)
{
throw new ArgumentNullException(nameof(textViewModel));
}
if (roles == null)
{
throw new ArgumentNullException(nameof(roles));
}
if (parentOptions == null)
{
throw new ArgumentNullException(nameof(parentOptions));
}
if (editorOptionsFactoryService == null)
{
throw new ArgumentNullException(nameof(editorOptionsFactoryService));
}
if (commandManager == null)
{
throw new ArgumentNullException(nameof(commandManager));
}
if (smartIndentationService == null)
{
throw new ArgumentNullException(nameof(smartIndentationService));
}
if (formattedTextSourceFactoryService == null)
{
throw new ArgumentNullException(nameof(formattedTextSourceFactoryService));
}
if (viewClassifierAggregatorService == null)
{
throw new ArgumentNullException(nameof(viewClassifierAggregatorService));
}
if (textAndAdornmentSequencerFactoryService == null)
{
throw new ArgumentNullException(nameof(textAndAdornmentSequencerFactoryService));
}
if (classificationFormatMapService == null)
{
throw new ArgumentNullException(nameof(classificationFormatMapService));
}
if (editorFormatMapService == null)
{
throw new ArgumentNullException(nameof(editorFormatMapService));
}
if (adornmentLayerDefinitionService == null)
{
throw new ArgumentNullException(nameof(adornmentLayerDefinitionService));
}
if (lineTransformProviderService == null)
{
throw new ArgumentNullException(nameof(lineTransformProviderService));
}
if (wpfTextViewCreationListeners == null)
{
throw new ArgumentNullException(nameof(wpfTextViewCreationListeners));
}
this.mouseHoverHelper = new MouseHoverHelper(this);
this.physicalLineCache = new PhysicalLineCache(32);
this.visiblePhysicalLines = new List <PhysicalLine>();
this.invalidatedRegions = new List <SnapshotSpan>();
this.formattedTextSourceFactoryService = formattedTextSourceFactoryService;
this.zoomLevel = ZoomConstants.DefaultZoom;
this.adornmentLayerDefinitionService = adornmentLayerDefinitionService;
this.lineTransformProviderService = lineTransformProviderService;
this.wpfTextViewCreationListeners = wpfTextViewCreationListeners.Where(a => roles.ContainsAny(a.Metadata.TextViewRoles)).ToArray();
this.recreateLineTransformProvider = true;
this.normalAdornmentLayerCollection = new AdornmentLayerCollection(this, LayerKind.Normal);
this.overlayAdornmentLayerCollection = new AdornmentLayerCollection(this, LayerKind.Overlay);
this.underlayAdornmentLayerCollection = new AdornmentLayerCollection(this, LayerKind.Underlay);
Properties = new PropertyCollection();
TextViewModel = textViewModel;
Roles = roles;
Options = editorOptionsFactoryService.GetOptions(this);
Options.Parent = parentOptions;
ViewScroller = new ViewScroller(this);
hasKeyboardFocus = this.IsKeyboardFocusWithin;
oldViewState = new ViewState(this);
this.aggregateClassifier = viewClassifierAggregatorService.GetClassifier(this);
this.textAndAdornmentSequencer = textAndAdornmentSequencerFactoryService.Create(this);
this.classificationFormatMap = classificationFormatMapService.GetClassificationFormatMap(this);
this.editorFormatMap = editorFormatMapService.GetEditorFormatMap(this);
this.textLayer = new TextLayer(GetAdornmentLayer(PredefinedAdornmentLayers.Text));
Selection = new TextSelection(this, GetAdornmentLayer(PredefinedAdornmentLayers.Selection), editorFormatMap);
TextCaret = new TextCaret(this, GetAdornmentLayer(PredefinedAdornmentLayers.Caret), smartIndentationService, classificationFormatMap);
Children.Add(underlayAdornmentLayerCollection);
Children.Add(normalAdornmentLayerCollection);
Children.Add(overlayAdornmentLayerCollection);
this.Cursor = Cursors.IBeam;
this.Focusable = true;
this.FocusVisualStyle = null;
InitializeOptions();
Options.OptionChanged += EditorOptions_OptionChanged;
TextBuffer.ChangedLowPriority += TextBuffer_ChangedLowPriority;
TextViewModel.DataModel.ContentTypeChanged += DataModel_ContentTypeChanged;
aggregateClassifier.ClassificationChanged += AggregateClassifier_ClassificationChanged;
textAndAdornmentSequencer.SequenceChanged += TextAndAdornmentSequencer_SequenceChanged;
classificationFormatMap.ClassificationFormatMappingChanged += ClassificationFormatMap_ClassificationFormatMappingChanged;
editorFormatMap.FormatMappingChanged += EditorFormatMap_FormatMappingChanged;
UpdateBackground();
CreateFormattedLineSource(ViewportWidth);
InitializeZoom();
UpdateRemoveExtraTextLineVerticalPixels();
if (Roles.Contains(PredefinedTextViewRoles.Interactive))
{
RegisteredCommandElement = commandManager.Register(VisualElement, this);
}
else
{
RegisteredCommandElement = NullRegisteredCommandElement.Instance;
}
NotifyTextViewCreated(TextViewModel.DataModel.ContentType, null);
}
public bool IsCompletionSupported(IContentType contentType, ITextViewRoleSet textViewRoleSet) => CompletionAvailability.IsAvailable(contentType, textViewRoleSet); // This will call HasCompletionProviders among doing other checks
/// <summary>
/// Returns whether there exist any <see cref="IAsyncCompletionSourceProvider"/>
/// for the provided <see cref="IContentType"/> or any of its base content types.
/// Since MEF parts don't change on runtime, the answer is cached per <see cref="IContentType"/> for faster retrieval.
/// </summary>
internal bool HasCompletionProviders(IContentType contentType, ITextViewRoleSet roles = null)
{
var key = new CompletionAvailabilityCacheKey(contentType, roles);
// Use cache if available
if (_providerAvailabilityCache.TryGetValue(key, out bool featureIsAvailable))
{
return(featureIsAvailable);
}
featureIsAvailable = UnorderedCompletionSourceProviders.Any(n =>
n.Metadata.ContentTypes.Any(ct => contentType.IsOfType(ct)) &&
(n.Metadata.TextViewRoles == null || roles == null || roles.ContainsAny(n.Metadata.TextViewRoles)));
_providerAvailabilityCache[key] = featureIsAvailable;
return(featureIsAvailable);
}
#pragma warning restore 0169
public WpfTextView(ITextViewModel textViewModel, ITextViewRoleSet roles, IEditorOptions parentOptions, IEditorOptionsFactoryService editorOptionsFactoryService, ICommandService commandService, ISmartIndentationService smartIndentationService, IFormattedTextSourceFactoryService formattedTextSourceFactoryService, IViewClassifierAggregatorService viewClassifierAggregatorService, ITextAndAdornmentSequencerFactoryService textAndAdornmentSequencerFactoryService, IClassificationFormatMapService classificationFormatMapService, IEditorFormatMapService editorFormatMapService, IAdornmentLayerDefinitionService adornmentLayerDefinitionService, ILineTransformProviderService lineTransformProviderService, ISpaceReservationStackProvider spaceReservationStackProvider, IWpfTextViewConnectionListenerServiceProvider wpfTextViewConnectionListenerServiceProvider, IBufferGraphFactoryService bufferGraphFactoryService, Lazy<IWpfTextViewCreationListener, IDeferrableContentTypeAndTextViewRoleMetadata>[] wpfTextViewCreationListeners) {
if (textViewModel == null)
throw new ArgumentNullException(nameof(textViewModel));
if (roles == null)
throw new ArgumentNullException(nameof(roles));
if (parentOptions == null)
throw new ArgumentNullException(nameof(parentOptions));
if (editorOptionsFactoryService == null)
throw new ArgumentNullException(nameof(editorOptionsFactoryService));
if (commandService == null)
throw new ArgumentNullException(nameof(commandService));
if (smartIndentationService == null)
throw new ArgumentNullException(nameof(smartIndentationService));
if (formattedTextSourceFactoryService == null)
throw new ArgumentNullException(nameof(formattedTextSourceFactoryService));
if (viewClassifierAggregatorService == null)
throw new ArgumentNullException(nameof(viewClassifierAggregatorService));
if (textAndAdornmentSequencerFactoryService == null)
throw new ArgumentNullException(nameof(textAndAdornmentSequencerFactoryService));
if (classificationFormatMapService == null)
throw new ArgumentNullException(nameof(classificationFormatMapService));
if (editorFormatMapService == null)
throw new ArgumentNullException(nameof(editorFormatMapService));
if (adornmentLayerDefinitionService == null)
throw new ArgumentNullException(nameof(adornmentLayerDefinitionService));
if (lineTransformProviderService == null)
throw new ArgumentNullException(nameof(lineTransformProviderService));
if (spaceReservationStackProvider == null)
throw new ArgumentNullException(nameof(spaceReservationStackProvider));
if (wpfTextViewCreationListeners == null)
throw new ArgumentNullException(nameof(wpfTextViewCreationListeners));
if (wpfTextViewConnectionListenerServiceProvider == null)
throw new ArgumentNullException(nameof(wpfTextViewConnectionListenerServiceProvider));
if (bufferGraphFactoryService == null)
throw new ArgumentNullException(nameof(bufferGraphFactoryService));
mouseHoverHelper = new MouseHoverHelper(this);
physicalLineCache = new PhysicalLineCache(32);
visiblePhysicalLines = new List<PhysicalLine>();
invalidatedRegions = new List<SnapshotSpan>();
this.formattedTextSourceFactoryService = formattedTextSourceFactoryService;
zoomLevel = ZoomConstants.DefaultZoom;
DsImage.SetZoom(VisualElement, zoomLevel / 100);
this.adornmentLayerDefinitionService = adornmentLayerDefinitionService;
this.lineTransformProviderService = lineTransformProviderService;
this.wpfTextViewCreationListeners = wpfTextViewCreationListeners.Where(a => roles.ContainsAny(a.Metadata.TextViewRoles)).ToArray();
recreateLineTransformProvider = true;
normalAdornmentLayerCollection = new AdornmentLayerCollection(this, LayerKind.Normal);
overlayAdornmentLayerCollection = new AdornmentLayerCollection(this, LayerKind.Overlay);
underlayAdornmentLayerCollection = new AdornmentLayerCollection(this, LayerKind.Underlay);
IsVisibleChanged += WpfTextView_IsVisibleChanged;
Properties = new PropertyCollection();
TextViewModel = textViewModel;
BufferGraph = bufferGraphFactoryService.CreateBufferGraph(TextViewModel.VisualBuffer);
Roles = roles;
Options = editorOptionsFactoryService.GetOptions(this);
Options.Parent = parentOptions;
ViewScroller = new ViewScroller(this);
hasKeyboardFocus = IsKeyboardFocusWithin;
oldViewState = new ViewState(this);
aggregateClassifier = viewClassifierAggregatorService.GetClassifier(this);
textAndAdornmentSequencer = textAndAdornmentSequencerFactoryService.Create(this);
classificationFormatMap = classificationFormatMapService.GetClassificationFormatMap(this);
editorFormatMap = editorFormatMapService.GetEditorFormatMap(this);
spaceReservationStack = spaceReservationStackProvider.Create(this);
textLayer = new TextLayer(GetAdornmentLayer(PredefinedAdornmentLayers.Text));
Selection = new TextSelection(this, GetAdornmentLayer(PredefinedAdornmentLayers.Selection), editorFormatMap);
TextCaret = new TextCaret(this, GetAdornmentLayer(PredefinedAdornmentLayers.Caret), smartIndentationService, classificationFormatMap);
Children.Add(underlayAdornmentLayerCollection);
Children.Add(normalAdornmentLayerCollection);
Children.Add(overlayAdornmentLayerCollection);
Cursor = Cursors.IBeam;
Focusable = true;
FocusVisualStyle = null;
InitializeOptions();
Options.OptionChanged += EditorOptions_OptionChanged;
TextBuffer.ChangedLowPriority += TextBuffer_ChangedLowPriority;
TextViewModel.DataModel.ContentTypeChanged += DataModel_ContentTypeChanged;
aggregateClassifier.ClassificationChanged += AggregateClassifier_ClassificationChanged;
textAndAdornmentSequencer.SequenceChanged += TextAndAdornmentSequencer_SequenceChanged;
classificationFormatMap.ClassificationFormatMappingChanged += ClassificationFormatMap_ClassificationFormatMappingChanged;
editorFormatMap.FormatMappingChanged += EditorFormatMap_FormatMappingChanged;
spaceReservationStack.GotAggregateFocus += SpaceReservationStack_GotAggregateFocus;
spaceReservationStack.LostAggregateFocus += SpaceReservationStack_LostAggregateFocus;
UpdateBackground();
CreateFormattedLineSource(ViewportWidth);
InitializeZoom();
UpdateRemoveExtraTextLineVerticalPixels();
if (Roles.Contains(PredefinedTextViewRoles.Interactive))
RegisteredCommandElement = commandService.Register(VisualElement, this);
else
RegisteredCommandElement = NullRegisteredCommandElement.Instance;
wpfTextViewConnectionListenerServiceProvider.Create(this);
NotifyTextViewCreated(TextViewModel.DataModel.ContentType, null);
}