/// <inheritdoc />
public override void Do(DocumentEditorContext context)
{
var next = _nextPath.Get(context.Document);
TextBlockHelperMethods.MergeWithPrevious((TextBlock)next);
context.Selection.Replace(_endOfPreviousBlockHandle.GetCaret(context));
}
/// <inheritdoc />
public override void Undo(DocumentEditorContext context)
{
var caret = (TextCaret)_endOfPreviousBlockHandle.GetCaret(context);
TextBlockHelperMethods.TryBreakBlock(caret);
context.Selection.Replace(_originalCaretPosition.GetCaret(context));
}
/// <inheritdoc />
public override void Do(DocumentEditorContext context)
{
var caret = (TextCaret)_handle.GetCaret(context);
var caretPosition = TextBlockHelperMethods.TryBreakBlock(caret);
if (!caretPosition.IsValid)
{
return;
}
context.Selection.Replace(caretPosition);
}
/// <inheritdoc />
public override void Undo(DocumentEditorContext context)
{
var caret = (TextCaret)_handle.GetCaret(context);
var previousBlock = caret.Block;
var nextBlock = previousBlock.NextBlock;
TextBlockHelperMethods.MergeWithPrevious((TextBlock)nextBlock);
// move it to where it was when we wanted to break the paragraph. It's safer to deserialize
// again, as the cursor above is not guaranteed to be valid.
context.Selection.MoveTo(_handle, context);
}
