public static ImmutableArray <string> GetClassificationsForSpan(IWpfTextView view, Span span)
{
ThreadHelper.ThrowIfNotOnUIThread();
// If the cursor is after the last character return empty array.
if (span.Start == view.TextBuffer.CurrentSnapshot.Length)
{
return(ImmutableArray <string> .Empty);
}
// The span to classify must have a length.
var snapshotSpan = span.Length == 0
? new SnapshotSpan(view.TextSnapshot, span.Start, 1)
: new SnapshotSpan(view.TextSnapshot, span);
var classificationService = VSServiceHelpers.GetMefExport <IClassifierAggregatorService>();
var classifier = (IAccurateClassifier)classificationService.GetClassifier(view.TextBuffer);
var classifiedSpans = classifier.GetAllClassificationSpans(snapshotSpan, CancellationToken.None);
var classifications = ImmutableArray.CreateBuilder <string>();
foreach (var classifiedSpan in classifiedSpans)
{
CollectClassifications(classifiedSpan.ClassificationType, classifications);
}
return(classifications.ToImmutable());
public static ImmutableDictionary <string, string> GetClassificationNameMap()
{
ThreadHelper.ThrowIfNotOnUIThread();
// This results in a dictionary where the keys are font/color item
// names and the values are VS editor format classification names.
var builder = ImmutableDictionary.CreateBuilder <string, string>();
var efds = VSServiceHelpers.GetMefExports <EditorFormatDefinition>().ToArray();
foreach (var efd in efds)
{
var type = efd.GetType();
var uv = type.GetCustomAttribute <UserVisibleAttribute>();
if (uv?.UserVisible != true)
{
continue;
}
var name = type.GetCustomAttribute <NameAttribute>()?.Name;
var ctns = type.GetCustomAttribute <ClassificationTypeAttribute>()?.ClassificationTypeNames;
if (string.IsNullOrEmpty(name))
{
continue;
}
builder.Add(name, ctns ?? name);
}
return(builder.ToImmutable());
}
static ClassificationMap()
{
ThreadHelper.ThrowIfNotOnUIThread();
var builder = ImmutableDictionary.CreateBuilder <string, string>();
var efds = VSServiceHelpers.GetMefExports <EditorFormatDefinition>().ToArray();
foreach (var efd in efds)
{
var type = efd.GetType();
var uv = type.GetCustomAttribute <UserVisibleAttribute>();
if (uv?.UserVisible != true)
{
continue;
}
var name = type.GetCustomAttribute <NameAttribute>()?.Name;
var ctns = type.GetCustomAttribute <ClassificationTypeAttribute>()?.ClassificationTypeNames;
if (string.IsNullOrEmpty(name))
{
continue;
}
builder.Add(name, ctns ?? name);
}
itemNameToClassification = builder.ToImmutable();
}
public static ImmutableDictionary <string, string> GetClassificationNameMap()
{
ThreadHelper.ThrowIfNotOnUIThread();
return(VSServiceHelpers.GetMefExports <EditorFormatDefinition>()
.Select(definition => definition.GetType())
.Where(type => type.GetCustomAttribute <UserVisibleAttribute>()?.UserVisible == true)
.Select(type => (type.GetCustomAttribute <NameAttribute>()?.Name, type.GetCustomAttribute <ClassificationTypeAttribute>()?.ClassificationTypeNames))
.Where(names => !string.IsNullOrEmpty(names.Name))
.ToImmutableDictionary(t => t.Name, t => t.ClassificationTypeNames ?? t.Name));
}
/// <summary>
/// Initializes a new instance of the <see cref="MainWindowControl"/> class.
/// </summary>
public MainWindowControl()
{
DataContext = _viewModel = new MainWindowControlViewModel();
InitializeComponent();
_activeWindowTracker = new ActiveWindowTracker();
_activeWindowTracker.PropertyChanged += ActiveWindowPropertyChanged;
var editorFormatMapService = VSServiceHelpers.GetMefExport <IEditorFormatMapService>();
var editorFormatMap = editorFormatMapService.GetEditorFormatMap("text");
editorFormatMap.FormatMappingChanged += (object s, FormatItemsEventArgs e) => UpdateClassifications(e.ChangedItems);
void UpdateClassifications(ReadOnlyCollection <string> definitionNames)
{
_viewModel.OnThemeChanged(definitionNames.ToLookup(name => name));
}
}
