/// <summary>
/// This can use input files with an (optionally) annotated span 'Selection' and a cursor position ($$),
/// and use it to create a selected span in the TextView.
///
/// For instance, the following will create a TextView that has a multiline selection with the cursor at the end.
///
/// Sub Goo
/// {|Selection:SomeMethodCall()
/// AnotherMethodCall()$$|}
/// End Sub
///
/// You can use multiple selection spans to create box selections.
///
/// Sub Goo
/// {|Selection:$$box|}11111
/// {|Selection:sel|}111
/// {|Selection:ect|}1
/// {|Selection:ion|}1111111
/// End Sub
/// </summary>
public AbstractCommandHandlerTestState(
XElement workspaceElement,
ExportProvider exportProvider,
string workspaceKind,
XElement cursorDocumentElement = null,
ImmutableArray <string> roles = default)
{
this.Workspace = TestWorkspace.CreateWorkspace(
workspaceElement,
exportProvider: exportProvider,
workspaceKind: workspaceKind);
TestHostDocument cursorDocument;
if (cursorDocumentElement == null)
{
cursorDocument = this.Workspace.Documents.First(d => d.CursorPosition.HasValue);
}
else
{
var languageName = Workspace.Projects.First().Language;
cursorDocument = TestWorkspace.CreateDocument(cursorDocumentElement, exportProvider, Workspace.Services.GetLanguageServices(languageName), roles);
}
_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);
}
else
{
_textView.Caret.MoveTo(
new SnapshotPoint(
_textView.TextBuffer.CurrentSnapshot,
cursorDocument.CursorPosition.Value));
}
this.EditorOperations = GetService <IEditorOperationsFactoryService>().GetEditorOperations(_textView);
this.UndoHistoryRegistry = GetService <ITextUndoHistoryRegistry>();
}
