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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Diagnostics;
using System.Reflection;
using System.Xml;
using System.IO;
using System.Security;
using System.ComponentModel.Design.Serialization;
using System.Windows.Xps.Packaging;
using System.Windows.Documents;
using System.Windows.Media;
using System.Windows.Markup;
namespace System.Windows.Xps.Serialization
{
/// <summary>
/// Leverages the functionality in XpsOMDocumentPageSerializer
/// to serialize a Document Page asynchronously
/// </summary>
internal class XpsOMDocumentPaginatorSerializerAsync :
ReachSerializerAsync
{
public
XpsOMDocumentPaginatorSerializerAsync(
PackageSerializationManager manager
)
:
base(manager)
{
///
/// Fail if manager is not XpsOMSerializationManagerAsync
///
_xpsOMSerializationManagerAsync = (XpsOMSerializationManagerAsync)manager;
_syncSerializer = new XpsOMDocumentPaginatorSerializer(manager);
}
public
override
void
AsyncOperation(
ReachSerializerContext context
)
{
switch (context.Action)
{
case SerializerAction.endPersistObjectData:
{
EndPersistObjectData();
break;
}
case SerializerAction.serializeNextDocumentPage:
{
SerializeNextDocumentPage(context);
break;
}
default:
{
base.AsyncOperation(context);
break;
}
}
}
public
override
void
SerializeObject(
Object serializedObject
)
{
SerializableObjectContext serializableObjectContext = _syncSerializer.SerializeObjectInternal(serializedObject);
PersistObjectData(serializableObjectContext);
}
/// <summary>
///
/// </summary>
internal
override
void
PersistObjectData(
SerializableObjectContext serializableObjectContext
)
{
DocumentPaginator paginator = _syncSerializer.BeginPersistObjectData(serializableObjectContext);
ReachSerializerContext context = new ReachSerializerContext(this,
SerializerAction.endPersistObjectData);
_xpsOMSerializationManagerAsync.OperationStack.Push(context);
int index = 0;
DocumentPaginatorSerializerContext
collectionContext = new DocumentPaginatorSerializerContext(this,
serializableObjectContext,
paginator,
index,
SerializerAction.serializeNextDocumentPage);
_xpsOMSerializationManagerAsync.OperationStack.Push(collectionContext);
}
internal
override
void
EndPersistObjectData(
)
{
_syncSerializer.EndPersistObjectData();
}
private
void
SerializeNextDocumentPage(
ReachSerializerContext context
)
{
DocumentPaginatorSerializerContext paginatorContext = context as DocumentPaginatorSerializerContext;
if (paginatorContext != null)
{
DocumentPaginator paginator = paginatorContext.Paginator;
int index = paginatorContext.Index;
if (!paginator.IsPageCountValid ||
(index < paginator.PageCount))
{
index++;
DocumentPaginatorSerializerContext
collectionContext = new DocumentPaginatorSerializerContext(this,
paginatorContext.ObjectContext,
paginator,
index,
SerializerAction.serializeNextDocumentPage);
_xpsOMSerializationManagerAsync.OperationStack.Push(collectionContext);
DocumentPage page = Toolbox.GetPage(paginator, index - 1);
ReachSerializer serializer = SerializationManager.GetSerializer(page);
if (serializer != null)
{
serializer.SerializeObject(page);
}
}
}
}
private XpsOMSerializationManagerAsync _xpsOMSerializationManagerAsync;
///
/// This serializer uses its synchronous counterpart in a similar way
/// as if it was inheriting from it, since we already inherit from
/// ReachSerializerAsync, we hold a private reference to the
/// synchronous serializer and call into it to do the bulk of the work
///
private XpsOMDocumentPaginatorSerializer _syncSerializer;
};
}
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