/// <summary>
/// Expands the block list.
/// * Only expand block list of arguments
/// * Only expand if the list is empty. In that case, add a single default argument.
/// </summary>
private protected virtual void ExpandBlockList(IWriteableBlockListInner <IWriteableBrowsingBlockNodeIndex> blockListInner, WriteableOperationList operationList)
{
if (!blockListInner.IsEmpty)
{
return;
}
if (!NodeHelper.IsCollectionWithExpand(blockListInner.Owner.Node, blockListInner.PropertyName))
{
return;
}
Node NewItem = NodeHelper.CreateDefaultFromType(blockListInner.InterfaceType);
Pattern NewPattern = NodeHelper.CreateEmptyPattern();
Identifier NewSource = NodeHelper.CreateEmptyIdentifier();
IBlock NewBlock = NodeTreeHelperBlockList.CreateBlock(blockListInner.Owner.Node, blockListInner.PropertyName, ReplicationStatus.Normal, NewPattern, NewSource);
Action <IWriteableOperation> HandlerRedo = (IWriteableOperation operation) => RedoExpandBlockList(operation);
Action <IWriteableOperation> HandlerUndo = (IWriteableOperation operation) => UndoExpandBlockList(operation);
WriteableExpandArgumentOperation Operation = CreateExpandArgumentOperation(blockListInner.Owner.Node, blockListInner.PropertyName, NewBlock, NewItem, HandlerRedo, HandlerUndo, isNested: false);
Operation.Redo();
operationList.Add(Operation);
}
private protected virtual void InsertNewBlock(IWriteableBlockListInner <IWriteableBrowsingBlockNodeIndex> blockListInner, IWriteableInsertionNewBlockNodeIndex newBlockIndex, out IWriteableBrowsingCollectionNodeIndex nodeIndex)
{
IBlock NewBlock = NodeTreeHelperBlockList.CreateBlock(blockListInner.Owner.Node, blockListInner.PropertyName, ReplicationStatus.Normal, newBlockIndex.PatternNode, newBlockIndex.SourceNode);
Action <IWriteableOperation> HandlerRedo = (IWriteableOperation operation) => RedoInsertNewBlock(operation);
Action <IWriteableOperation> HandlerUndo = (IWriteableOperation operation) => UndoInsertNewBlock(operation);
IWriteableInsertBlockOperation Operation = CreateInsertBlockOperation(blockListInner.Owner.Node, blockListInner.PropertyName, newBlockIndex.BlockIndex, NewBlock, newBlockIndex.Node, HandlerRedo, HandlerUndo, isNested: false);
Operation.Redo();
SetLastOperation(Operation);
CheckInvariant();
nodeIndex = Operation.BrowsingIndex;
}
/// <summary>
/// Creates a clone of the block and assigns it in the provided parent.
/// </summary>
/// <param name="parentNode">The node that will contains a reference to the cloned block upon return.</param>
/// <param name="blockIndex">Position where to insert the block in <paramref name="parentNode"/>.</param>
public virtual void CloneBlock(Node parentNode, int blockIndex)
{
Pattern PatternClone = ClonePattern();
Debug.Assert(PatternClone != null);
Identifier SourceClone = CloneSource();
Debug.Assert(SourceClone != null);
IBlock NewBlock = NodeTreeHelperBlockList.CreateBlock(parentNode, ParentInner.PropertyName, ChildBlock.Replication, PatternClone, SourceClone);
NodeTreeHelperBlockList.InsertIntoBlockList(parentNode, ParentInner.PropertyName, blockIndex, NewBlock);
NodeTreeHelper.CopyDocumentation(ChildBlock, NewBlock, cloneCommentGuid: true);
// Clone children recursively.
CloneChildren(parentNode, NewBlock);
}
/// <summary>
/// Splits a block in two at the given index.
/// </summary>
/// <param name="inner">The inner where the block is split.</param>
/// <param name="nodeIndex">Index of the last node to stay in the old block.</param>
public virtual void SplitBlock(IWriteableBlockListInner inner, IWriteableBrowsingExistingBlockNodeIndex nodeIndex)
{
Contract.RequireNotNull(inner, out IWriteableBlockListInner Inner);
Contract.RequireNotNull(nodeIndex, out IWriteableBrowsingExistingBlockNodeIndex NodeIndex);
Debug.Assert(Inner.IsSplittable(NodeIndex));
IWriteableBlockState BlockState = (IWriteableBlockState)Inner.BlockStateList[NodeIndex.BlockIndex];
ReplicationStatus Replication = BlockState.ChildBlock.Replication;
Pattern NewPatternNode = NodeHelper.CreateSimplePattern(BlockState.ChildBlock.ReplicationPattern.Text);
Identifier NewSourceNode = NodeHelper.CreateSimpleIdentifier(BlockState.ChildBlock.SourceIdentifier.Text);
IBlock NewBlock = NodeTreeHelperBlockList.CreateBlock(Inner.Owner.Node, Inner.PropertyName, Replication, NewPatternNode, NewSourceNode);
Action <IWriteableOperation> HandlerRedo = (IWriteableOperation operation) => RedoSplitBlock(operation);
Action <IWriteableOperation> HandlerUndo = (IWriteableOperation operation) => UndoSplitBlock(operation);
WriteableSplitBlockOperation Operation = CreateSplitBlockOperation(Inner.Owner.Node, Inner.PropertyName, NodeIndex.BlockIndex, NodeIndex.Index, NewBlock, HandlerRedo, HandlerUndo, isNested: false);
Operation.Redo();
SetLastOperation(Operation);
CheckInvariant();
}
/// <summary>
/// Removes a range of blocks from a block list and replace them with other blocks.
/// </summary>
/// <param name="inner">The inner for the block list from which blocks are replaced.</param>
/// <param name="firstBlockIndex">Index of the first block to remove.</param>
/// <param name="lastBlockIndex">Index following the last block to remove.</param>
/// <param name="indexList">List of nodes in blocks to insert.</param>
public virtual void ReplaceBlockRange(IWriteableBlockListInner inner, int firstBlockIndex, int lastBlockIndex, IList <IWriteableInsertionBlockNodeIndex> indexList)
{
Contract.RequireNotNull(inner, out IWriteableBlockListInner Inner);
Debug.Assert(firstBlockIndex >= 0 && firstBlockIndex < Inner.BlockStateList.Count);
Debug.Assert(lastBlockIndex >= 0 && lastBlockIndex <= Inner.BlockStateList.Count);
Debug.Assert(firstBlockIndex <= lastBlockIndex);
Contract.RequireNotNull(indexList, out IList <IWriteableInsertionBlockNodeIndex> IndexList);
int BlockIndex = firstBlockIndex - 1;
int BlockNodeIndex = 0;
foreach (IWriteableInsertionBlockNodeIndex NodeIndex in IndexList)
{
bool IsHandled = false;
if (NodeIndex is IWriteableInsertionNewBlockNodeIndex AsNewBlockNodeIndex)
{
BlockIndex++;
BlockNodeIndex = 0;
Debug.Assert(AsNewBlockNodeIndex.BlockIndex == BlockIndex);
IsHandled = true;
}
else if (NodeIndex is IWriteableInsertionExistingBlockNodeIndex AsExistingBlockNodeIndex)
{
BlockNodeIndex++;
Debug.Assert(AsExistingBlockNodeIndex.BlockIndex == BlockIndex);
Debug.Assert(AsExistingBlockNodeIndex.Index == BlockNodeIndex);
IsHandled = true;
}
Debug.Assert(IsHandled);
}
int FinalBlockIndex = BlockIndex + 1;
Action <IWriteableOperation> HandlerRedoInsertNode = (IWriteableOperation operation) => RedoInsertNewNode(operation);
Action <IWriteableOperation> HandlerUndoInsertNode = (IWriteableOperation operation) => UndoInsertNewNode(operation);
Action <IWriteableOperation> HandlerRedoInsertBlock = (IWriteableOperation operation) => RedoInsertNewBlock(operation);
Action <IWriteableOperation> HandlerUndoInsertBlock = (IWriteableOperation operation) => UndoInsertNewBlock(operation);
Action <IWriteableOperation> HandlerRedoRemoveNode = (IWriteableOperation operation) => RedoRemoveNode(operation);
Action <IWriteableOperation> HandlerUndoRemoveNode = (IWriteableOperation operation) => UndoRemoveNode(operation);
Action <IWriteableOperation> HandlerRedoRemoveBlock = (IWriteableOperation operation) => RedoRemoveBlock(operation);
Action <IWriteableOperation> HandlerUndoRemoveBlock = (IWriteableOperation operation) => UndoRemoveBlock(operation);
WriteableOperationList OperationList = CreateOperationList();
// Insert first to prevent empty block lists.
foreach (IWriteableInsertionBlockNodeIndex NodeIndex in IndexList)
{
if (NodeIndex is IWriteableInsertionNewBlockNodeIndex AsNewBlockNodeIndex)
{
IBlock NewBlock = NodeTreeHelperBlockList.CreateBlock(Inner.Owner.Node, Inner.PropertyName, ReplicationStatus.Normal, AsNewBlockNodeIndex.PatternNode, AsNewBlockNodeIndex.SourceNode);
IWriteableInsertBlockOperation OperationInsertBlock = CreateInsertBlockOperation(Inner.Owner.Node, Inner.PropertyName, AsNewBlockNodeIndex.BlockIndex, NewBlock, AsNewBlockNodeIndex.Node, HandlerRedoInsertBlock, HandlerUndoInsertBlock, isNested: true);
OperationList.Add(OperationInsertBlock);
}
else if (NodeIndex is IWriteableInsertionExistingBlockNodeIndex AsExistingBlockNodeIndex)
{
IndexToPositionAndNode(AsExistingBlockNodeIndex, out BlockIndex, out int Index, out _, out Node Node);
WriteableInsertNodeOperation OperationInsertNode = CreateInsertNodeOperation(Inner.Owner.Node, Inner.PropertyName, BlockIndex, Index, Node, HandlerRedoInsertNode, HandlerUndoInsertNode, isNested: true);
OperationList.Add(OperationInsertNode);
}
}
Debug.Assert(BlockIndex + 1 == FinalBlockIndex);
for (int i = FinalBlockIndex; i < FinalBlockIndex + lastBlockIndex - firstBlockIndex; i++)
{
IWriteableBlockState BlockState = (IWriteableBlockState)Inner.BlockStateList[i + firstBlockIndex - FinalBlockIndex];
Debug.Assert(BlockState.StateList.Count >= 1);
// Remove at FinalBlockIndex since subsequent blocks are moved as the block at FinalBlockIndex is deleted.
// Same for nodes inside blokcks, delete them at 0.
for (int j = 1; j < BlockState.StateList.Count; j++)
{
WriteableRemoveNodeOperation OperationNode = CreateRemoveNodeOperation(Inner.Owner.Node, Inner.PropertyName, FinalBlockIndex, 0, HandlerRedoRemoveNode, HandlerUndoRemoveNode, isNested: true);
OperationList.Add(OperationNode);
}
IWriteableRemoveBlockOperation OperationBlock = CreateRemoveBlockOperation(Inner.Owner.Node, Inner.PropertyName, FinalBlockIndex, HandlerRedoRemoveBlock, HandlerUndoRemoveBlock, isNested: true);
OperationList.Add(OperationBlock);
}
if (OperationList.Count > 0)
{
WriteableOperationReadOnlyList OperationReadOnlyList = OperationList.ToReadOnly();
Action <IWriteableOperation> HandlerRedo = (IWriteableOperation operation) => RedoRefresh(operation);
Action <IWriteableOperation> HandlerUndo = (IWriteableOperation operation) => throw new NotImplementedException(); // Undo is not possible.
WriteableGenericRefreshOperation RefreshOperation = CreateGenericRefreshOperation(RootState, HandlerRedo, HandlerUndo, isNested: false);
WriteableOperationGroup OperationGroup = CreateOperationGroup(OperationReadOnlyList, RefreshOperation);
OperationGroup.Redo();
SetLastOperation(OperationGroup);
CheckInvariant();
}
}
/// <summary>
/// Inserts a range of blocks in a block list.
/// </summary>
/// <param name="inner">The inner for the block list in which blocks are inserted.</param>
/// <param name="insertedIndex">Index where to insert the first block.</param>
/// <param name="indexList">List of nodes in blocks to insert.</param>
public virtual void InsertBlockRange(IWriteableBlockListInner inner, int insertedIndex, IList <IWriteableInsertionBlockNodeIndex> indexList)
{
Contract.RequireNotNull(inner, out IWriteableBlockListInner Inner);
Debug.Assert(insertedIndex >= 0 && insertedIndex <= Inner.BlockStateList.Count);
Contract.RequireNotNull(indexList, out IList <IWriteableInsertionBlockNodeIndex> IndexList);
int BlockIndex = insertedIndex - 1;
int BlockNodeIndex = 0;
foreach (IWriteableInsertionBlockNodeIndex NodeIndex in IndexList)
{
bool IsHandled = false;
if (NodeIndex is IWriteableInsertionNewBlockNodeIndex AsNewBlockNodeIndex)
{
BlockIndex++;
BlockNodeIndex = 0;
Debug.Assert(AsNewBlockNodeIndex.BlockIndex == BlockIndex);
IsHandled = true;
}
else if (NodeIndex is IWriteableInsertionExistingBlockNodeIndex AsExistingBlockNodeIndex)
{
BlockNodeIndex++;
Debug.Assert(AsExistingBlockNodeIndex.BlockIndex == BlockIndex);
Debug.Assert(AsExistingBlockNodeIndex.Index == BlockNodeIndex);
IsHandled = true;
}
Debug.Assert(IsHandled);
}
int FinalBlockIndex = BlockIndex + 1;
Action <IWriteableOperation> HandlerRedoInsertNode = (IWriteableOperation operation) => RedoInsertNewNode(operation);
Action <IWriteableOperation> HandlerUndoInsertNode = (IWriteableOperation operation) => UndoInsertNewNode(operation);
Action <IWriteableOperation> HandlerRedoInsertBlock = (IWriteableOperation operation) => RedoInsertNewBlock(operation);
Action <IWriteableOperation> HandlerUndoInsertBlock = (IWriteableOperation operation) => UndoInsertNewBlock(operation);
WriteableOperationList OperationList = CreateOperationList();
foreach (IWriteableInsertionBlockNodeIndex NodeIndex in IndexList)
{
if (NodeIndex is IWriteableInsertionNewBlockNodeIndex AsNewBlockNodeIndex)
{
IBlock NewBlock = NodeTreeHelperBlockList.CreateBlock(Inner.Owner.Node, Inner.PropertyName, ReplicationStatus.Normal, AsNewBlockNodeIndex.PatternNode, AsNewBlockNodeIndex.SourceNode);
IWriteableInsertBlockOperation OperationInsertBlock = CreateInsertBlockOperation(Inner.Owner.Node, Inner.PropertyName, AsNewBlockNodeIndex.BlockIndex, NewBlock, AsNewBlockNodeIndex.Node, HandlerRedoInsertBlock, HandlerUndoInsertBlock, isNested: true);
OperationList.Add(OperationInsertBlock);
}
else if (NodeIndex is IWriteableInsertionExistingBlockNodeIndex AsExistingBlockNodeIndex)
{
IndexToPositionAndNode(AsExistingBlockNodeIndex, out BlockIndex, out int Index, out _, out Node Node);
WriteableInsertNodeOperation OperationInsertNode = CreateInsertNodeOperation(Inner.Owner.Node, Inner.PropertyName, BlockIndex, Index, Node, HandlerRedoInsertNode, HandlerUndoInsertNode, isNested: true);
OperationList.Add(OperationInsertNode);
}
}
Debug.Assert(BlockIndex + 1 == FinalBlockIndex);
if (OperationList.Count > 0)
{
WriteableOperationReadOnlyList OperationReadOnlyList = OperationList.ToReadOnly();
Action <IWriteableOperation> HandlerRedo = (IWriteableOperation operation) => RedoRefresh(operation);
Action <IWriteableOperation> HandlerUndo = (IWriteableOperation operation) => throw new NotImplementedException(); // Undo is not possible.
WriteableGenericRefreshOperation RefreshOperation = CreateGenericRefreshOperation(RootState, HandlerRedo, HandlerUndo, isNested: false);
WriteableOperationGroup OperationGroup = CreateOperationGroup(OperationReadOnlyList, RefreshOperation);
OperationGroup.Redo();
SetLastOperation(OperationGroup);
CheckInvariant();
}
}
