/// <summary>
/// Replaces a node.
/// </summary>
/// <param name="operation">Details of the operation performed.</param>
public virtual void Replace(IWriteableReplaceOperation operation)
{
int BlockIndex = operation.BlockIndex;
Debug.Assert(BlockIndex >= 0 && BlockIndex < BlockStateList.Count);
IWriteableBlockState BlockState = (IWriteableBlockState)BlockStateList[BlockIndex];
int Index = operation.Index;
Debug.Assert(Index >= 0 && Index < BlockState.StateList.Count);
IBlock ChildBlock = BlockState.ChildBlock;
Node ParentNode = Owner.Node;
IWriteableNodeState OldChildState = (IWriteableNodeState)BlockState.StateList[Index];
Node OldNode = OldChildState.Node;
IWriteableBrowsingBlockNodeIndex OldBrowsingIndex = (IWriteableBrowsingBlockNodeIndex)OldChildState.ParentIndex;
BlockState.Remove(OldBrowsingIndex, Index);
NodeTreeHelperBlockList.ReplaceInBlock(ChildBlock, Index, operation.NewNode);
IWriteableBrowsingExistingBlockNodeIndex NewBrowsingIndex = CreateBrowsingNodeIndex(operation.NewNode, BlockIndex, Index);
IWriteablePlaceholderNodeState NewChildState = (IWriteablePlaceholderNodeState)CreateNodeState(NewBrowsingIndex);
BlockState.Insert(NewBrowsingIndex, Index, NewChildState);
operation.Update(OldBrowsingIndex, NewBrowsingIndex, OldNode, NewChildState);
}
/// <summary>
/// Replaces a node.
/// </summary>
/// <param name="operation">Details of the operation performed.</param>
public virtual void Replace(IWriteableReplaceOperation operation)
{
Debug.Assert(operation != null);
int Index = operation.Index;
Debug.Assert(Index >= 0 && Index < StateList.Count);
INode ParentNode = Owner.Node;
IWriteableNodeState OldChildState = StateList[Index];
INode OldNode = OldChildState.Node;
IWriteableBrowsingListNodeIndex OldBrowsingIndex = (IWriteableBrowsingListNodeIndex)OldChildState.ParentIndex;
RemoveFromStateList(Index);
NodeTreeHelperList.ReplaceNode(ParentNode, PropertyName, Index, operation.NewNode);
IWriteableBrowsingListNodeIndex NewBrowsingIndex = CreateBrowsingNodeIndex(operation.NewNode, Index);
IWriteablePlaceholderNodeState NewChildState = (IWriteablePlaceholderNodeState)CreateNodeState(NewBrowsingIndex);
InsertInStateList(Index, NewChildState);
operation.Update(OldBrowsingIndex, NewBrowsingIndex, OldNode, NewChildState);
}
private protected virtual void ClearOptional(IWriteableReplaceOperation operation)
{
INode ParentNode = Owner.Node;
WriteableBrowsingOptionalNodeIndex OldBrowsingIndex = (WriteableBrowsingOptionalNodeIndex)ChildState.ParentIndex;
INode OldNode = ChildState.Optional.HasItem ? ChildState.Node : null;
NodeTreeHelperOptional.ClearOptionalChildNode(ParentNode, PropertyName);
IWriteableBrowsingOptionalNodeIndex NewBrowsingIndex = CreateBrowsingNodeIndex();
IWriteableOptionalNodeState NewChildState = (IWriteableOptionalNodeState)CreateNodeState(NewBrowsingIndex);
SetChildState(NewChildState);
operation.Update(OldBrowsingIndex, NewBrowsingIndex, OldNode, NewChildState);
}
/// <summary>
/// Replaces a node.
/// </summary>
/// <param name="operation">Details of the operation performed.</param>
public virtual void Replace(IWriteableReplaceOperation operation)
{
Node ParentNode = Owner.Node;
IWriteableBrowsingPlaceholderNodeIndex OldBrowsingIndex = (IWriteableBrowsingPlaceholderNodeIndex)ChildState.ParentIndex;
IWriteablePlaceholderNodeState OldChildState = (IWriteablePlaceholderNodeState)ChildState;
Node OldNode = OldChildState.Node;
NodeTreeHelperChild.SetChildNode(ParentNode, PropertyName, operation.NewNode);
IWriteableBrowsingPlaceholderNodeIndex NewBrowsingIndex = CreateBrowsingNodeIndex(operation.NewNode);
IWriteablePlaceholderNodeState NewChildState = (IWriteablePlaceholderNodeState)CreateNodeState(NewBrowsingIndex);
SetChildState(NewChildState);
operation.Update(OldBrowsingIndex, NewBrowsingIndex, OldNode, NewChildState);
}
private protected virtual void ReplaceOptional(IWriteableReplaceOperation operation)
{
Node ParentNode = Owner.Node;
IWriteableBrowsingOptionalNodeIndex OldBrowsingIndex = (IWriteableBrowsingOptionalNodeIndex)ChildState.ParentIndex;
Node OldNode = ChildState.Node;
if (operation.ClearNode)
{
NodeTreeHelperOptional.UnassignChildNode(ParentNode, PropertyName);
}
else
{
NodeTreeHelperOptional.SetOptionalChildNode(ParentNode, PropertyName, operation.NewNode);
}
IWriteableBrowsingOptionalNodeIndex NewBrowsingIndex = CreateBrowsingNodeIndex();
IWriteableOptionalNodeState NewChildState = (IWriteableOptionalNodeState)CreateNodeState(NewBrowsingIndex);
SetChildState(NewChildState);
operation.Update(OldBrowsingIndex, NewBrowsingIndex, OldNode, NewChildState);
}