private protected virtual void UndoInsertNewBlock(IWriteableOperation operation)
{
IWriteableInsertBlockOperation InsertBlockOperation = (IWriteableInsertBlockOperation)operation;
IWriteableRemoveBlockOperation RemoveBlockOperation = InsertBlockOperation.ToRemoveBlockOperation();
ExecuteRemoveBlock(RemoveBlockOperation);
}
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>
/// Inserts a new block with one node in a block list.
/// </summary>
/// <param name="operation">Details of the operation performed.</param>
public virtual void InsertNewBlock(IWriteableInsertBlockOperation operation)
{
Debug.Assert(operation != null);
int BlockIndex = operation.BlockIndex;
Debug.Assert(BlockIndex >= 0 && BlockIndex <= BlockStateList.Count);
IBlock NewBlock = operation.Block;
Debug.Assert(NewBlock != null);
INode NewNode = operation.Node;
Debug.Assert(NewBlock != null);
INode ParentNode = Owner.Node;
NodeTreeHelperBlockList.InsertIntoBlockList(ParentNode, PropertyName, BlockIndex, NewBlock);
NodeTreeHelperBlockList.InsertIntoBlock(NewBlock, 0, NewNode);
IWriteableBrowsingNewBlockNodeIndex BrowsingNewBlockIndex = CreateNewBlockNodeIndex(NewNode, BlockIndex);
IWriteableBrowsingExistingBlockNodeIndex BrowsingExistingBlockIndex = (IWriteableBrowsingExistingBlockNodeIndex)BrowsingNewBlockIndex.ToExistingBlockIndex();
IWriteableBlockState BlockState = (IWriteableBlockState)CreateBlockState(BrowsingNewBlockIndex, NewBlock);
InsertInBlockStateList(BlockIndex, BlockState);
IWriteablePlaceholderNodeState ChildState = (IWriteablePlaceholderNodeState)CreateNodeState(BrowsingExistingBlockIndex);
BlockState.Insert(BrowsingExistingBlockIndex, 0, ChildState);
operation.Update(BrowsingExistingBlockIndex, BlockState, ChildState);
while (++BlockIndex < BlockStateList.Count)
{
IWriteableBlockState NextBlockState = BlockStateList[BlockIndex];
foreach (IWriteablePlaceholderNodeState State in NextBlockState.StateList)
{
IWriteableBrowsingExistingBlockNodeIndex NodeIndex = State.ParentIndex as IWriteableBrowsingExistingBlockNodeIndex;
Debug.Assert(NodeIndex != null);
Debug.Assert(NodeIndex.BlockIndex == BlockIndex - 1);
NodeIndex.MoveBlockUp();
}
}
}
/// <summary>
/// Handler called every time a block state is inserted in the controller.
/// </summary>
/// <param name="operation">Details of the operation performed.</param>
private protected virtual void OnBlockStateInserted(IWriteableInsertBlockOperation operation)
{
IWriteableBlockState BlockState = operation.BlockState;
Debug.Assert(BlockState != null);
Debug.Assert(BlockStateViewTable.ContainsKey(BlockState));
Debug.Assert(StateViewTable.ContainsKey(BlockState.PatternState));
Debug.Assert(StateViewTable.ContainsKey(BlockState.SourceState));
Debug.Assert(BlockState.StateList.Count == 1);
IWriteablePlaceholderNodeState ChildState = operation.ChildState;
Debug.Assert(ChildState == BlockState.StateList[0]);
Debug.Assert(ChildState.ParentIndex == operation.BrowsingIndex);
Debug.Assert(StateViewTable.ContainsKey(ChildState));
}
/// <summary>
/// Handler called every time a block state is inserted in the controller.
/// </summary>
/// <param name="operation">Details of the operation performed.</param>
private protected override void OnBlockStateInserted(IWriteableInsertBlockOperation operation)
{
base.OnBlockStateInserted(operation);
IFocusBlockState BlockState = ((IFocusInsertBlockOperation)operation).BlockState;
Debug.Assert(BlockState != null);
Debug.Assert(BlockStateViewTable.ContainsKey(BlockState));
Debug.Assert(StateViewTable.ContainsKey(BlockState.PatternState));
Debug.Assert(StateViewTable.ContainsKey(BlockState.SourceState));
Debug.Assert(BlockState.StateList.Count == 1);
IFocusPlaceholderNodeState ChildState = ((IFocusInsertBlockOperation)operation).ChildState;
Debug.Assert(ChildState == BlockState.StateList[0]);
Debug.Assert(ChildState.ParentIndex == ((IFocusInsertBlockOperation)operation).BrowsingIndex);
Debug.Assert(StateViewTable.ContainsKey(ChildState));
}
private protected virtual void ExecuteInsertNewBlock(IWriteableInsertBlockOperation operation)
{
Node ParentNode = operation.ParentNode;
string PropertyName = operation.PropertyName;
IWriteableBlockListInner <IWriteableBrowsingBlockNodeIndex> Inner = GetInner(ParentNode, PropertyName) as IWriteableBlockListInner <IWriteableBrowsingBlockNodeIndex>;
Inner.InsertNewBlock(operation);
IWriteableBrowsingExistingBlockNodeIndex BrowsingIndex = operation.BrowsingIndex;
IWriteableBlockState BlockState = operation.BlockState;
IWriteablePlaceholderNodeState ChildState = operation.ChildState;
Debug.Assert(BlockState.StateList.Count == 1);
Debug.Assert(BlockState.StateList[0] == ChildState);
((IWriteableBlockState <IWriteableInner <IWriteableBrowsingChildIndex> >)BlockState).InitBlockState();
Stats.BlockCount++;
IWriteableBrowsingPatternIndex PatternIndex = BlockState.PatternIndex;
IWriteablePatternState PatternState = BlockState.PatternState;
AddState(PatternIndex, PatternState);
Stats.PlaceholderNodeCount++;
IWriteableBrowsingSourceIndex SourceIndex = BlockState.SourceIndex;
IWriteableSourceState SourceState = BlockState.SourceState;
AddState(SourceIndex, SourceState);
Stats.PlaceholderNodeCount++;
AddState(BrowsingIndex, ChildState);
Stats.PlaceholderNodeCount++;
BuildStateTable(Inner, null, BrowsingIndex, ChildState);
Debug.Assert(Contains(BrowsingIndex));
NotifyBlockStateInserted(operation);
}
/// <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();
}
}
private protected virtual void RedoInsertNewBlock(IWriteableOperation operation)
{
IWriteableInsertBlockOperation InsertBlockOperation = (IWriteableInsertBlockOperation)operation;
ExecuteInsertNewBlock(InsertBlockOperation);
}
/// <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();
}
}
private protected virtual void NotifyBlockStateInserted(IWriteableInsertBlockOperation operation)
{
BlockStateInsertedHandler?.Invoke(operation);
}
