public void TestCollectionDescriptor()
{
var attributeRegistry = new AttributeRegistry();
var factory = new TypeDescriptorFactory(attributeRegistry);
var descriptor = new CollectionDescriptor(factory, typeof(List <string>), false, new DefaultNamingConvention());
descriptor.Initialize(new DefaultKeyComparer());
// No Capacity as a member
Assert.AreEqual(0, descriptor.Count);
Assert.True(descriptor.IsPureCollection);
Assert.AreEqual(typeof(string), descriptor.ElementType);
descriptor = new CollectionDescriptor(factory, typeof(NonPureCollection), false,
new DefaultNamingConvention());
descriptor.Initialize(new DefaultKeyComparer());
// Has name as a member
Assert.AreEqual(1, descriptor.Count);
Assert.False(descriptor.IsPureCollection);
Assert.AreEqual(typeof(int), descriptor.ElementType);
descriptor = new CollectionDescriptor(factory, typeof(ArrayList), false, new DefaultNamingConvention());
descriptor.Initialize(new DefaultKeyComparer());
// No Capacity
Assert.AreEqual(0, descriptor.Count);
Assert.True(descriptor.IsPureCollection);
Assert.AreEqual(typeof(object), descriptor.ElementType);
}
public override void VisitCollectionItem(IEnumerable collection, CollectionDescriptor descriptor, int index, object item, ITypeDescriptor itemDescriptor)
{
base.VisitCollectionItem(collection, descriptor, index, item, itemDescriptor);
var assetReference = item as AssetReference;
// TODO force support for IList in CollectionDescriptor
if (assetReference != null)
{
var list = (IList)collection;
AddLink(assetReference, (guid, location) => list[index] = AssetReference.New(descriptor.ElementType, guid.HasValue ? guid.Value : assetReference.Id, location));
}
else
{
var assetBase = item as AssetBase;
if (assetBase != null)
{
var list = (IList)collection;
AddLink(assetBase, (guid, location) => list[index] = new AssetBase(location, assetBase.Asset));
}
else if (item is UFile)
{
var list = (IList)collection;
AddLink(item, (guid, location) => list[index] = new UFile(location));
}
else if (item is UDirectory)
{
var list = (IList)collection;
AddLink(item, (guid, location) => list[index] = new UDirectory(location));
}
}
}
private static bool IsComparableType(bool hasMembers, Type type)
{
// A comparable type doesn't have any members, is not a collection or dictionary or array.
bool isComparableType = !hasMembers && !CollectionDescriptor.IsCollection(type) && !DictionaryDescriptor.IsDictionary(type) && !type.IsArray;
return(isComparableType);
}
public override void VisitCollectionItem(IEnumerable collection, CollectionDescriptor descriptor, int index, object item, ITypeDescriptor itemDescriptor)
{
base.VisitCollectionItem(collection, descriptor, index, item, itemDescriptor);
var assetReference = item as AssetReference;
var assetBase = item as AssetBase;
var attachedReference = item != null?AttachedReferenceManager.GetAttachedReference(item) : null;
// TODO force support for IList in CollectionDescriptor
if (assetReference != null)
{
var list = (IList)collection;
AddLink(assetReference, (guid, location) => list[index] = AssetReference.New(descriptor.ElementType, guid.HasValue ? guid.Value : assetReference.Id, location));
}
else if (assetBase != null)
{
var list = (IList)collection;
AddLink(assetBase, (guid, location) => list[index] = new AssetBase(location, assetBase.Asset));
}
else if (attachedReference != null)
{
var list = (IList)collection;
AddLink(new AttachedContentReference(attachedReference), (guid, location) => list[index] = guid.HasValue && guid.Value != Guid.Empty ? AttachedReferenceManager.CreateSerializableVersion(descriptor.ElementType, guid.Value, location) : null);
}
else if (item is UFile)
{
var list = (IList)collection;
AddLink(item, (guid, location) => list[index] = new UFile(location));
}
else if (item is UDirectory)
{
var list = (IList)collection;
AddLink(item, (guid, location) => list[index] = new UDirectory(location));
}
}
public void TestCollectionDescriptor()
{
var attributeRegistry = new AttributeRegistry();
var descriptor = new CollectionDescriptor(attributeRegistry, typeof(List <string>), false);
descriptor.Initialize();
// No Capacity as a member
Assert.AreEqual(0, descriptor.Count);
Assert.True(descriptor.IsPureCollection);
Assert.AreEqual(typeof(string), descriptor.ElementType);
descriptor = new CollectionDescriptor(attributeRegistry, typeof(NonPureCollection), false);
descriptor.Initialize();
// Has name as a member
Assert.AreEqual(1, descriptor.Count);
Assert.False(descriptor.IsPureCollection);
Assert.AreEqual(typeof(int), descriptor.ElementType);
descriptor = new CollectionDescriptor(attributeRegistry, typeof(ArrayList), false);
descriptor.Initialize();
// No Capacity
Assert.AreEqual(0, descriptor.Count);
Assert.True(descriptor.IsPureCollection);
Assert.AreEqual(typeof(object), descriptor.ElementType);
}
/// <inheritdoc/>
public override void VisitCollection(IEnumerable collection, CollectionDescriptor descriptor)
{
// Don't visit items unless they are primitive or enumerable (collections within collections)
if (IsPrimitiveType(descriptor.ElementType, false) || IsEnumerable(descriptor.ElementType))
{
base.VisitCollection(collection, descriptor);
}
}
public override void VisitCollectionItem(IEnumerable collection, CollectionDescriptor descriptor, int index, object item, ITypeDescriptor itemDescriptor)
{
if (ProcessObject(item, descriptor.ElementType))
{
return;
}
base.VisitCollectionItem(collection, descriptor, index, item, itemDescriptor);
}
private static IEnumerable EnumerateCollection([NotNull] object collection, [NotNull] CollectionDescriptor collectionDescriptor)
{
var count = collectionDescriptor.GetCollectionCount(collection);
for (var i = 0; i < count; i++)
{
yield return(collectionDescriptor.GetValue(collection, i));
}
}
/// <inheritdoc/>
public override void VisitCollectionItem(IEnumerable collection, CollectionDescriptor descriptor, int index, object item, ITypeDescriptor itemDescriptor)
{
if (CurrentPath.Match(MemberPath))
{
VisitAssetMember(item, itemDescriptor);
}
else
{
base.VisitCollectionItem(collection, descriptor, index, item, itemDescriptor);
}
}
public override void VisitCollectionItem(IEnumerable collection, CollectionDescriptor descriptor, int index, object item, ITypeDescriptor itemDescriptor)
{
var node = stackItems.Peek();
// TODO modify DataVisitorBase to allow only IList?
var newNode = new DataVisitListItem(index, item, itemDescriptor);
AddItem(node, newNode);
stackItems.Push(newNode);
base.VisitCollectionItem(collection, descriptor, index, item, itemDescriptor);
stackItems.Pop();
}
/// <inheritdoc/>
public override void VisitCollection(IEnumerable collection, CollectionDescriptor descriptor)
{
if (!descriptor.HasIndexerAccessors)
{
return; // HashSet or some other set, skip this (don't crash loading the project though, geez!)
}
// Don't visit items unless they are primitive or enumerable (collections within collections)
if (IsCollection(descriptor.ElementType))
{
base.VisitCollection(collection, descriptor);
}
}
/// <inheritdoc/>
public override void VisitCollection(IEnumerable collection, CollectionDescriptor descriptor)
{
if (!descriptor.HasIndexerAccessors)
{
throw new NotSupportedException("Collections that do not have indexer accessors are not supported in Quantum.");
}
// Don't visit items unless they are primitive or enumerable (collections within collections)
if (IsCollection(descriptor.ElementType))
{
base.VisitCollection(collection, descriptor);
}
}
public override void VisitCollection(IEnumerable collection, CollectionDescriptor descriptor)
{
if (ShouldGenerateItemIdCollection(collection))
{
var itemIds = CollectionItemIdHelper.GetCollectionItemIds(collection);
var count = descriptor.GetCollectionCount(collection);
for (var i = 0; i < count; ++i)
{
itemIds.Add(i, ItemId.New());
}
}
base.VisitCollection(collection, descriptor);
}
public DemoAdapter(DocumentClient client, string databaseName, string collectionName)
{
this.client = client ?? throw new ArgumentNullException(nameof(client));
this.databaseName = databaseName ?? throw new ArgumentNullException(nameof(databaseName));
this.collectionName = collectionName ?? throw new ArgumentNullException(nameof(collectionName));
this.monitor = new CosmosDbPerformanceMonitor();
var collectionUri = UriFactory.CreateDocumentCollectionUri(this.databaseName, this.collectionName);
var descriptor = new CollectionDescriptor(this.monitor, client, collectionUri);
this.Authors = new AuthorEntityClient(descriptor);
this.BlogPosts = new BlogPostEntityClient(descriptor);
}
public override void VisitCollectionItem(IEnumerable collection, CollectionDescriptor descriptor, int index, object item, ITypeDescriptor itemDescriptor)
{
base.VisitCollectionItem(collection, descriptor, index, item, itemDescriptor);
var assetReference = item as AssetReference;
var attachedReference = AttachedReferenceManager.GetAttachedReference(item);
// We cannot set links if we do not have indexer accessor
if (!descriptor.HasIndexerAccessors)
{
return;
}
if (assetReference != null)
{
AddLink(assetReference, (guid, location) =>
{
var link = AssetReference.New(guid ?? assetReference.Id, location);
descriptor.SetValue(collection, index, link);
return(link);
});
}
else if (attachedReference != null)
{
AddLink(attachedReference, (guid, location) =>
{
var link = guid.HasValue && guid.Value != AssetId.Empty ? AttachedReferenceManager.CreateProxyObject(descriptor.ElementType, guid.Value, location) : null;
descriptor.SetValue(collection, index, link);
return(link);
});
}
else if (item is UFile)
{
AddLink(item, (guid, location) =>
{
var link = new UFile(location);
descriptor.SetValue(collection, index, link);
return(link);
});
}
else if (item is UDirectory)
{
AddLink(item, (guid, location) =>
{
var link = new UDirectory(location);
descriptor.SetValue(collection, index, link);
return(link);
});
}
}
public override void VisitCollection(IEnumerable collection, CollectionDescriptor descriptor)
{
CollectionItemIdentifiers itemIds;
if (inNonIdentifiableType == 0 && !CollectionItemIdHelper.TryGetCollectionItemIds(collection, out itemIds))
{
itemIds = CollectionItemIdHelper.GetCollectionItemIds(collection);
var count = descriptor.GetCollectionCount(collection);
for (var i = 0; i < count; ++i)
{
itemIds.Add(i, ItemId.New());
}
}
base.VisitCollection(collection, descriptor);
}
/// <summary>
/// Database migration
/// </summary>
private void Migrate()
{
var properties = this._context.GetType().GetProperties();
var collectionProperties = properties.Where(x => Attribute.IsDefined(x, typeof(CollectionDescriptor))).ToList();
foreach (var collectionProperty in collectionProperties)
{
CollectionDescriptor descriptor = collectionProperty.GetCustomAttributes(typeof(CollectionDescriptor), false).FirstOrDefault() as CollectionDescriptor;
Type entityType = Type.GetType(collectionProperty.PropertyType.GenericTypeArguments[0].FullName + "," + collectionProperty.Module.Assembly.FullName);
this.MigrateCollection(collectionProperty.Name, entityType, descriptor);
}
this._context.CreateIndexes();
}
/// <inheritdoc/>
public override void VisitCollection(IEnumerable collection, CollectionDescriptor descriptor)
{
var containerNode = GetContextNode();
var count = descriptor.GetCollectionCount(collection);
var referenceInfo = GetReferenceInfo(descriptor.Type, collection);
if (referenceInfo != null && referenceInfo.EnumerableCount != count)
{
throw new QuantumConsistencyException("A node with an EnumerableReference containing [{0}] items", referenceInfo.EnumerableCount.ToStringSafe(), "A node with an EnumerableReference containing [{0}] items", count.ToStringSafe(), containerNode);
}
if (IsPrimitiveType(descriptor.ElementType, false) || IsEnumerable(descriptor.ElementType))
{
base.VisitCollection(collection, descriptor);
}
}
/// <summary>
/// Initialize the tests.
/// </summary>
public virtual void Initialize()
{
TypeFactory = new TypeDescriptorFactory();
var myClassDesc = TypeFactory.Find(typeof(MyClass));
var myStructDesc = TypeFactory.Find(typeof(MyStruct));
ListClassDesc = (CollectionDescriptor)TypeFactory.Find(typeof(List <MyClass>));
MapClassDesc = (DictionaryDescriptor)TypeFactory.Find(typeof(Dictionary <string, MyClass>));
MemberValue = (IMemberDescriptor)myClassDesc.Members.FirstOrDefault(member => member.Name == "Value");
MemberSub = (IMemberDescriptor)myClassDesc.Members.FirstOrDefault(member => member.Name == "Sub");
MemberStruct = (IMemberDescriptor)myClassDesc.Members.FirstOrDefault(member => member.Name == "Struct");
MemberSubs = (IMemberDescriptor)myClassDesc.Members.FirstOrDefault(member => member.Name == "Subs");
MemberMaps = (IMemberDescriptor)myClassDesc.Members.FirstOrDefault(member => member.Name == "Maps");
MemberX = (IMemberDescriptor)myStructDesc.Members.FirstOrDefault(member => member.Name == "X");
MemberClass = (IMemberDescriptor)myStructDesc.Members.FirstOrDefault(member => member.Name == "Class");
}
protected async void DoPaste(INodePresenter nodePresenter, bool replace)
{
var text = SafeClipboard.GetText();
if (string.IsNullOrEmpty(text))
{
return;
}
var assetNodePresenter = (IAssetNodePresenter)nodePresenter;
var asset = assetNodePresenter.Asset;
var copyPasteService = asset.ServiceProvider.Get <ICopyPasteService>();
var result = copyPasteService.DeserializeCopiedData(text, asset.Asset, (nodePresenter as ItemNodePresenter)?.OwnerCollection.Type ?? nodePresenter.Type);
if (result.Items.Count == 0)
{
return;
}
var nodeAccessor = nodePresenter.GetNodeAccessor();
var targetNode = nodeAccessor.Node;
// If the node presenter is a virtual node without node, we cannot paste.
if (targetNode == null)
{
return;
}
var actionService = asset.UndoRedoService;
using (var transaction = actionService.CreateTransaction())
{
// FIXME: for now we only handle one result item
var item = result.Items[0];
if (item.Data is ICollection && !CollectionDescriptor.IsCollection(targetNode.Type))
{
return; // cannot paste a collection to a non-collection content
}
var propertyContainer = new PropertyContainer {
{ AssetPropertyPasteProcessor.IsReplaceKey, replace }
};
await(item.Processor?.Paste(item, asset.PropertyGraph, ref nodeAccessor, ref propertyContainer) ?? Task.CompletedTask);
actionService.SetName(transaction, replace ? "Replace property": "Paste property");
}
}
private Diff3Node DiffNodeWithUniformType(DataVisitNode baseNode, DataVisitNode asset1Node, DataVisitNode asset2Node)
{
var baseNodeDesc = GetNodeDescription(baseNode);
var asset1NodeDesc = GetNodeDescription(asset1Node);
var asset2NodeDesc = GetNodeDescription(asset2Node);
var node = baseNode ?? asset1Node ?? asset2Node;
var type = baseNodeDesc.Type ?? asset1NodeDesc.Type ?? asset2NodeDesc.Type;
var diff3 = new Diff3Node(baseNode, asset1Node, asset2Node)
{
InstanceType = type
};
if (type == null)
{
// All nodes are null. This should only happen as part of a temporary diff in DiffNode()
diff3.ChangeType = Diff3ChangeType.None;
}
else if (IsComparableType(node.HasMembers, type))
{
DiffValue(diff3, ref baseNodeDesc, ref asset1NodeDesc, ref asset2NodeDesc);
}
else
{
DiffMembers(diff3, baseNode, asset1Node, asset2Node);
if (DictionaryDescriptor.IsDictionary(type))
{
DiffDictionary(diff3, baseNode, asset1Node, asset2Node);
}
else if (CollectionDescriptor.IsCollection(type))
{
DiffCollection(diff3, baseNode, asset1Node, asset2Node);
}
else if (type.IsArray)
{
DiffArray(diff3, baseNode, asset1Node, asset2Node);
}
}
return(diff3);
}
/// <summary>
/// Migrate collection
/// </summary>
/// <param name="name"></param>
/// <param name="collectionPropertyType"></param>
/// <param name="descriptor"></param>
private void MigrateCollection(string name, Type collectionPropertyType, CollectionDescriptor descriptor)
{
if (!this.CollectionExists(name))
{
this._database.CreateCollection(name, new CreateCollectionOptions
{
MaxDocuments = descriptor.MaxDocuments > 0 ? descriptor.MaxDocuments : (long?)null,
Capped = descriptor.Capped,
MaxSize = descriptor.MaxSize > 0 ? descriptor.MaxSize : (long?)null,
ValidationAction = descriptor.ValidationAction,
ValidationLevel = descriptor.ValidationLevel
});
}
var typedCollection = typeof(MongoDatabase)
.GetMethod("GetCollectionByName", BindingFlags.NonPublic | BindingFlags.Instance)
.MakeGenericMethod(new Type[] { collectionPropertyType })
.Invoke(this, new object[] { name });
this._context.GetType().GetProperty(name).SetValue(this._context, typedCollection);
}
private Diff3Node DiffNodeWithUniformType(DataVisitNode baseNode, DataVisitNode asset1Node, DataVisitNode asset2Node)
{
var baseNodeDesc = GetNodeDescription(baseNode);
var asset1NodeDesc = GetNodeDescription(asset1Node);
var asset2NodeDesc = GetNodeDescription(asset2Node);
var node = baseNode ?? asset1Node ?? asset2Node;
var type = baseNodeDesc.Type ?? asset1NodeDesc.Type ?? asset2NodeDesc.Type;
var diff3 = new Diff3Node(baseNode, asset1Node, asset2Node)
{
InstanceType = type
};
if (IsComparableType(node.HasMembers, type))
{
DiffValue(diff3, ref baseNodeDesc, ref asset1NodeDesc, ref asset2NodeDesc);
}
else
{
DiffMembers(diff3, baseNode, asset1Node, asset2Node);
if (DictionaryDescriptor.IsDictionary(type))
{
DiffDictionary(diff3, baseNode, asset1Node, asset2Node);
}
else if (CollectionDescriptor.IsCollection(type))
{
DiffCollection(diff3, baseNode, asset1Node, asset2Node);
}
else if (type.IsArray)
{
DiffArray(diff3, baseNode, asset1Node, asset2Node);
}
}
return(diff3);
}
private static bool ConvertForCollection(CollectionDescriptor collectionDescriptor, [NotNull] ref object data)
{
if (CollectionDescriptor.IsCollection(data.GetType()))
{
if (!TryConvertCollectionData(data, collectionDescriptor, out data))
{
return(false);
}
}
else
{
object convertedData;
if (!TypeConverterHelper.TryConvert(data, collectionDescriptor.ElementType, out convertedData))
{
return(false);
}
var convertedCollection = Activator.CreateInstance(collectionDescriptor.Type, true);
collectionDescriptor.Add(convertedCollection, convertedData);
data = convertedCollection;
}
return(true);
}
/// <summary>
/// Tries to convert the <paramref name="sourceCollection"/> to the type described by <paramref name="collectionDescriptor"/>.
/// </summary>
/// <param name="sourceCollection"></param>
/// <param name="collectionDescriptor"></param>
/// <param name="convertedCollection"></param>
/// <returns><c>true</c> if the <paramref name="sourceCollection"/> could be converted to the type described by <paramref name="collectionDescriptor"/>; otherwise, <c>false</c>.</returns>
private static bool TryConvertCollectionData([NotNull] object sourceCollection, [NotNull] CollectionDescriptor collectionDescriptor, out object convertedCollection)
{
try
{
var sourceCollectionType = sourceCollection.GetType();
// Already same type
if (collectionDescriptor.Type == sourceCollectionType)
{
convertedCollection = sourceCollection;
return(true);
}
convertedCollection = Activator.CreateInstance(collectionDescriptor.Type, true);
var sourceCollectionDescriptor = (CollectionDescriptor)TypeDescriptorFactory.Default.Find(sourceCollectionType);
foreach (var item in EnumerateCollection(sourceCollection, sourceCollectionDescriptor))
{
object obj;
if (!TypeConverterHelper.TryConvert(item, collectionDescriptor.ElementType, out obj))
{
// (optimistic) try to convert the remaining items
continue;
}
collectionDescriptor.Add(convertedCollection, obj);
}
return(collectionDescriptor.GetCollectionCount(convertedCollection) > 0);
}
catch (InvalidCastException) { }
catch (InvalidOperationException) { }
catch (FormatException) { }
catch (NotSupportedException) { }
catch (Exception ex) when(ex.InnerException is InvalidCastException)
{
}
catch (Exception ex) when(ex.InnerException is InvalidOperationException)
{
}
catch (Exception ex) when(ex.InnerException is FormatException)
{
}
catch (Exception ex) when(ex.InnerException is NotSupportedException)
{
}
// Incompatible type and no conversion available
convertedCollection = null;
return(false);
}
public override void VisitCollection(IEnumerable collection, CollectionDescriptor descriptor)
{
Fixup(collection);
base.VisitCollection(collection, descriptor);
}
private static bool HasCollectionReference(Type type)
{
return type.IsArray || CollectionDescriptor.IsCollection(type) || DictionaryDescriptor.IsDictionary(type);
}
protected override void ReadAddCollectionItem(ref ObjectContext objectContext, Type elementType, CollectionDescriptor collectionDescriptor, object thisObject, int index)
{
var scriptCollection = (EntityComponentCollection)objectContext.Instance;
EntityComponent value = null;
bool needAdd = true; // If we could get existing value, no need add to collection
if (index < scriptCollection.Count)
{
value = scriptCollection[index];
needAdd = false;
}
value = (EntityComponent)ReadCollectionItem(ref objectContext, value, elementType);
if (needAdd)
{
scriptCollection.Add(value);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ApplyMaxLengthAttribute" /> class.
/// </summary>
/// <param name="descriptor">Describe a collection should be mutated.</param>
protected ApplyMaxLengthAttribute(CollectionDescriptor descriptor)
{
_descriptor = descriptor;
}
// TODO: replace targetNode & index arguments by a NodeAccessor
private void Paste([NotNull] IPasteItem pasteResultItem, IGraphNode targetNode, NodeIndex index, bool replace)
{
if (pasteResultItem?.Data == null)
{
throw new ArgumentNullException(nameof(pasteResultItem));
}
if (targetNode == null)
{
throw new ArgumentNullException(nameof(targetNode));
}
var copiedData = pasteResultItem.Data;
var copiedDataType = copiedData.GetType();
var copiedDataDescriptor = TypeDescriptorFactory.Default.Find(copiedDataType);
var memberNode = targetNode as IMemberNode;
// We're pasting in a node that is not a collection (nor a dictionary), let's just do a member update
if (!CollectionDescriptor.IsCollection(targetNode.Type))
{
if (CanUpdateMember(memberNode, copiedData))
{
UpdateMember(memberNode, copiedData);
}
return;
}
// Check if target collection/dictionary is null.
if (memberNode != null && memberNode.Target == null)
{
// Check if the type has a public constructor with no arguments
if (targetNode.Type.GetConstructor(Type.EmptyTypes) != null)
{
// Instantiate a new collection (based on node type)
memberNode.Update(Activator.CreateInstance(targetNode.Type));
}
}
var collectionNode = memberNode != null ? memberNode.Target : (IObjectNode)targetNode;
// The collection/dictionary is null and we couldn't construct it, let's stop here
if (collectionNode == null)
{
return;
}
// We're pasting in a dictionary. In this case the only accepted input is a (compatible) dictionary
if (copiedDataDescriptor.Category == DescriptorCategory.Dictionary && DictionaryDescriptor.IsDictionary(targetNode.Type))
{
var copiedDataDictionaryDescriptor = (DictionaryDescriptor)copiedDataDescriptor;
var existingKeys = collectionNode.Indices.ToList();
if (replace)
{
var keys = ((DictionaryDescriptor)collectionNode.Descriptor).GetKeys(collectionNode.Retrieve()).Cast <object>().ToList();
if (index.IsEmpty)
{
// If this operation is a replace of the whole dictionary, let's first clear it
foreach (var key in keys)
{
var itemIndex = new NodeIndex(key);
if (CanRemoveItem(collectionNode, itemIndex))
{
var itemToRemove = targetNode.Retrieve(itemIndex);
collectionNode.Remove(itemToRemove, itemIndex);
}
}
}
else
{
// Otherwise, just remove the corresponding item
if (CanRemoveItem(collectionNode, index))
{
var itemToRemove = targetNode.Retrieve(index);
collectionNode.Remove(itemToRemove, index);
}
}
}
foreach (var kv in copiedDataDictionaryDescriptor.GetEnumerator(copiedData))
{
var itemIndex = new NodeIndex(kv.Key);
if (existingKeys.Contains(itemIndex))
{
// Replace if the key already exists
if (CanReplaceItem(collectionNode, itemIndex, kv.Value))
{
ReplaceItem(collectionNode, itemIndex, kv.Value);
}
}
else
{
// Add if the key does not exist
if (CanInsertItem(collectionNode, itemIndex, kv.Value))
{
InsertItem(collectionNode, itemIndex, kv.Value);
}
}
}
}
else if (targetNode.Descriptor.Category == DescriptorCategory.Collection)
{
var targetCollectionDescriptor = (CollectionDescriptor)targetNode.Descriptor;
if (replace)
{
// No index, we're replacing the whole collection
if (index.IsEmpty)
{
// First clear the collection
var count = targetCollectionDescriptor.GetCollectionCount(targetNode.Retrieve());
for (var j = count - 1; j >= 0; j--)
{
var itemIndex = new NodeIndex(j);
if (CanRemoveItem(collectionNode, itemIndex))
{
var itemToRemove = targetNode.Retrieve(itemIndex);
collectionNode.Remove(itemToRemove, itemIndex);
}
}
// Then add the new items
var i = 0;
foreach (var item in EnumerateItems(copiedData, copiedDataDescriptor))
{
var itemIndex = new NodeIndex(i);
if (CanInsertItem(collectionNode, itemIndex, item))
{
InsertItem(collectionNode, itemIndex, item);
i++;
}
}
}
else
{
// We're replacing a single item with a given index...
var startIndex = index.Int;
var i = 0;
bool firstItemReplaced = false;
foreach (var item in EnumerateItems(copiedData, copiedDataDescriptor))
{
var itemIndex = new NodeIndex(startIndex + i);
if (!firstItemReplaced)
{
// We replace the first item.
if (CanReplaceItem(collectionNode, itemIndex, item))
{
ReplaceItem(collectionNode, itemIndex, item);
firstItemReplaced = true;
i++;
}
}
else if (CanInsertItem(collectionNode, itemIndex, item))
{
// We insert the following items that have no pre-existing counter-part.
InsertItem(collectionNode, itemIndex, item);
i++;
}
}
}
}
else
{
// No index, we're replacing the whole collection
if (index.IsEmpty)
{
// Add the new items
var i = targetCollectionDescriptor.GetCollectionCount(targetNode.Retrieve());
foreach (var item in EnumerateItems(copiedData, copiedDataDescriptor))
{
var itemIndex = new NodeIndex(i);
if (CanInsertItem(collectionNode, itemIndex, item))
{
InsertItem(collectionNode, itemIndex, item);
i++;
}
}
}
else
{
// Handling non-replacing paste
var i = index.Int;
foreach (var item in EnumerateItems(copiedData, copiedDataDescriptor))
{
// We're pasting a collection into the collection, let's add all items at the given index if provided or at the end of the collection.
var itemIndex = new NodeIndex(i);
if (CanInsertItem(collectionNode, itemIndex, item))
{
InsertItem(collectionNode, itemIndex, item);
i++;
}
}
}
}
}
}
