/// <summary>
/// Change the selection to be the specified SnapshotSpan value and update the caret to be on the
/// last included point in the SnapshotSpan.
/// </summary>
public static void SelectAndMoveCaret(this ITextView textView, SnapshotSpan span)
{
var characterSpan = CharacterSpan.CreateForSpan(span);
var visualSelection = VisualSelection.CreateForward(VisualSpan.NewCharacter(characterSpan));
visualSelection.SelectAndMoveCaret(textView);
}
public void Last_ZeroLength()
{
Create("cats", "dogs");
var characterSpan = CharacterSpan.CreateForSpan(_textBuffer.GetSpan(0, 0));
Assert.False(characterSpan.Last.IsSome());
}
/// <summary>
/// Change the selection to be the specified SnapshotSpan value and update the caret to be on the
/// last included point in the SnapshotSpan.
/// </summary>
public static void SelectAndUpdateCaret(this ITextView textView, SnapshotSpan span)
{
var characterSpan = CharacterSpan.CreateForSpan(span);
CommonUtil.SelectAndUpdateCaret(
textView,
VisualSelection.CreateForVisualSpan(VisualSpan.NewCharacter(characterSpan)));
}
public void Last_Simple()
{
Create("cats", "dogs");
var characterSpan = CharacterSpan.CreateForSpan(_textBuffer.GetSpan(0, 3));
Assert.True(characterSpan.Last.IsSome());
Assert.Equal('t', characterSpan.Last.Value.GetChar());
}
public void AdjustForSelectionKind_Character_Forward()
{
Create("cat dog bear");
var characterSpan = CharacterSpan.CreateForSpan(_textBuffer.GetSpan(0, 4));
var visualSpan = VisualSpan.NewCharacter(characterSpan);
var visualSelection = VisualSelection.CreateForward(visualSpan);
Assert.Equal("cat", visualSelection.AdjustForSelectionKind(SelectionKind.Exclusive).VisualSpan.EditSpan.OverarchingSpan.GetText());
}
public void GetCaretPoint_Character_Backward()
{
Create("cats", "dogs");
var visualSelection = VisualSelection.NewCharacter(
CharacterSpan.CreateForSpan(_textBuffer.GetSpan(0, 2)),
Path.Backward);
Assert.Equal(_textBuffer.GetPoint(0), visualSelection.GetCaretPoint(SelectionKind.Inclusive));
}
public void CaretPoint_Character_Backward()
{
Create("cats", "dogs");
var visualSelection = VisualSelection.NewCharacter(
CharacterSpan.CreateForSpan(_textBuffer.GetSpan(0, 2)),
false);
Assert.AreEqual(_textBuffer.GetPoint(0), visualSelection.CaretPoint);
}
public void Select_Character_Forwards()
{
Create("big dog", "big cat", "big tree", "big fish");
var characterSpan = CharacterSpan.CreateForSpan(_textBuffer.GetSpan(1, 3));
var visualSpan = VisualSpan.NewCharacter(characterSpan);
visualSpan.Select(_textView, Path.Forward);
Assert.False(_textView.Selection.IsReversed);
Assert.Equal(characterSpan.Span, _textView.GetSelectionSpan());
}
public void Create_LastLineLengthOfOne()
{
Create("cat", "dog", "fish");
var endPoint = _textBuffer.GetLine(1).Start.Add(1);
var span = new SnapshotSpan(_textBuffer.GetPoint(0), endPoint);
var characterSpan = CharacterSpan.CreateForSpan(span);
Assert.Equal(endPoint, characterSpan.End);
Assert.Equal(2, characterSpan.LineCount);
}
private void EnterMode(SnapshotSpan span)
{
var characterSpan = CharacterSpan.CreateForSpan(span);
var visualSelection = VisualSelection.NewCharacter(characterSpan, true);
CommonUtil.SelectAndUpdateCaret(_textView, visualSelection);
Assert.IsFalse(_context.IsEmpty);
_context.RunAll();
Assert.IsTrue(_context.IsEmpty);
}
public void Create_LastLineEmpty()
{
Create("cat", "", "dog");
var endPoint = _textBuffer.GetLine(1).End.Add(1);
var span = new SnapshotSpan(_textBuffer.GetPoint(0), endPoint);
var characterSpan = CharacterSpan.CreateForSpan(span);
Assert.Equal(endPoint, characterSpan.End);
// The last line is included even though it's blank
Assert.Equal(2, characterSpan.LineCount);
}
public void BackAndForth_Character_SingleLine()
{
Create("cats", "dogs");
var characterSpan = CharacterSpan.CreateForSpan(_textBuffer.GetSpan(1, 2));
var all = new[] { Path.Forward, Path.Backward };
foreach (var path in all)
{
var visualSelection = VisualSelection.NewCharacter(characterSpan, path);
visualSelection.SelectAndMoveCaret(_textView);
var currentVisualSelection = VisualSelection.CreateForSelection(_textView, VisualKind.Character, SelectionKind.Inclusive);
Assert.Equal(visualSelection, currentVisualSelection);
}
}
public void BackAndForth_Character_SingleLine()
{
Create("cats", "dogs");
var characterSpan = CharacterSpan.CreateForSpan(_textBuffer.GetSpan(1, 2));
var all = new[] { true, false };
foreach (var isForward in all)
{
var visualSelection = VisualSelection.NewCharacter(characterSpan, isForward);
CommonUtil.SelectAndUpdateCaret(_textView, visualSelection);
var currentVisualSelection = VisualSelection.CreateForSelection(_textView, VisualKind.Character);
Assert.AreEqual(visualSelection, currentVisualSelection);
}
}
internal static VisualSpan CreateVisualSpanCharacter(SnapshotSpan span)
{
return(VisualSpan.NewCharacter(CharacterSpan.CreateForSpan(span)));
}