// private IEnumerable<Block> ReversedList()
// {
// LinkedListNode<Block> current = this.list.Last;
// while (current != null)
// {
// yield return current.Value;
// current = current.Previous;
// }
// }
#endregion
#region Execute
protected override void ExecuteCore()
{
BlockActions.EnsureBlocksHangInTheAir(list);
Parent.Children.Prepend(BeforeChild, list);
if (!BlockToFocusIsValid)
{
BlockToFocus = BlockActions.FindFirstFocusableBlock(list);
}
}
protected override void UnExecuteCore()
{
if (AfterChild == null)
{
Parent.Children.Prepend(list);
}
else
{
Parent.Children.Append(AfterChild, list);
}
if (!BlockToFocusAfterUndoIsValid)
{
BlockToFocusAfterUndo = BlockActions.FindFirstFocusableBlock(list);
}
}
protected override void ExecuteCore()
{
BlockActions.EnsureBlocksHangInTheAir(list);
if (AfterChild != null)
{
Parent.Children.Append(AfterChild, list);
}
else
{
Parent.Children.Add(list);
}
if (!BlockToFocusIsValid)
{
BlockToFocus = BlockActions.FindFirstFocusableBlock(list);
}
}
public static void CopyBlocksBeforeBlock(IEnumerable <Block> blocksToCopy, Block beforeChild)
{
IEnumerable <Block> newBlocks = BlockActions.Clone(blocksToCopy);
beforeChild.PrependBlocks(newBlocks);
}
public static void CopyBlocksAfterBlock(IEnumerable <Block> blocksToCopy, Block afterChild)
{
IEnumerable <Block> newBlocks = BlockActions.Clone(blocksToCopy);
afterChild.AppendBlocks(newBlocks);
}