NGCUIElementCollectionSerializerAsync.cs source code in C# .NET

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Code:

/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Print / Reach / Serialization / manager / NGCUIElementCollectionSerializerAsync.cs / 1 / NGCUIElementCollectionSerializerAsync.cs

                            /*++ 

    Copyright (C) 2004- 2005 Microsoft Corporation
    All rights reserved.
 
    Module Name:
        ReachUIElementCollectionSerializerAsync.cs 
 
    Abstract:
        This file contains the definition of a class that defines 
        the common functionality required to serialize a
        UIElementCollection

    Author: 
        [....] ([....]) 25-May-2005
 
    Revision History: 
--*/
 
using System;
using System.Collections;
using System.Collections.Specialized;
using System.ComponentModel; 
using System.Diagnostics;
using System.Reflection; 
using System.Xml; 
using System.IO;
using System.Security; 
using System.Security.Permissions;
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
{ 
    /// 
    /// Class defining common functionality required to
    /// serialize a UIElementCollection.
    ///  
    internal class NgcUIElementCollectionSerializerAsync :
                   NGCSerializerAsync 
    { 
        #region Constructor
 
        /// 
        /// Constructor for class ReachUIElementCollectionSerializer
        /// 
        ///  
        /// The serialization manager, the services of which are
        /// used later in the serialization process of the type. 
        ///  
        public
        NgcUIElementCollectionSerializerAsync( 
            PackageSerializationManager manager
            ):
        base(manager)
        { 

        } 
 
        #endregion Constructor
 
        #region Public Methods

        public
        override 
        void
        AsyncOperation( 
            NGCSerializerContext context 
            )
        { 
            if(context == null)
            {

            } 

            switch (context.Action) 
            { 
                case SerializerAction.endPersistObjectData:
                { 
                    EndPersistObjectData();
                    break;
                }
 
                case SerializerAction.serializeNextUIElement:
                { 
                    NgcUIElementCollectionSerializerContext thisContext = context as NgcUIElementCollectionSerializerContext; 

                    if(thisContext != null) 
                    {
                        SerializeNextUIElement(thisContext.Enumerator,
                                               thisContext.ObjectContext);
                    } 

                    break; 
                } 

                default: 
                {
                    base.AsyncOperation(context);
                    break;
                } 
            }
        } 
 
        /// 
        /// The main method that is called to serialize a UIElementCollection. 
        /// 
        /// 
        /// Instance of object to be serialized.
        ///  
        public
        override 
        void 
        SerializeObject(
            Object serializedObject 
            )
        {
            base.SerializeObject(serializedObject);
        } 

        #endregion Public Methods 
 
        #region Internal Methods
 
        /// 
        /// The method is called once the object data is discovered at that
        /// point of the serialization process.
        ///  
        /// 
        /// The context of the object to be serialized at this time. 
        ///  
        internal
        override 
        void
        PersistObjectData(
            SerializableObjectContext   serializableObjectContext
            ) 
        {
            if (serializableObjectContext == null) 
            { 
                throw new ArgumentNullException("serializableObjectContext");
            } 

            IEnumerable enumerableObject = serializableObjectContext.TargetObject as IEnumerable;

            if (enumerableObject == null) 
            {
                throw new XpsSerializationException(ReachSR.Get(ReachSRID.MustBeOfType, "serializableObjectContext.TargetObject", typeof(IEnumerable))); 
            } 

            // 
            // Serialize the PageContent Items contained within the collection
            //
            SerializeUIElements(serializableObjectContext);
        } 

        #endregion Internal Methods 
 

        #region Private Methods 

        /// 
        /// This is being called to serialize the Page Content items
        /// contained within the collection 
        /// 
        private 
        void 
        SerializeUIElements(
            SerializableObjectContext   serializableObjectContext 
            )
        {
            //
            // Serialize each PageContent in PageContentCollection 
            //
            IEnumerator enumerator = ((IEnumerable)serializableObjectContext.TargetObject).GetEnumerator(); 
 
            enumerator.Reset();
 
            NgcUIElementCollectionSerializerContext context = new NgcUIElementCollectionSerializerContext(this,
                                                                                                          serializableObjectContext,
                                                                                                          enumerator,
                                                                                                          SerializerAction.serializeNextUIElement); 

            ((NgcSerializationManagerAsync)SerializationManager).OperationStack.Push(context); 
        } 

 
        private
        void
        SerializeNextUIElement(
            IEnumerator                 enumerator, 
            SerializableObjectContext   serializableObjectContext
            ) 
        { 
            if(enumerator.MoveNext())
            { 

                NgcUIElementCollectionSerializerContext context = new NgcUIElementCollectionSerializerContext(this,
                                                                                                              serializableObjectContext,
                                                                                                              enumerator, 
                                                                                                              SerializerAction.serializeNextUIElement);
 
 
                ((NgcSerializationManagerAsync)SerializationManager).OperationStack.Push(context);
 
                object uiElement = enumerator.Current;

                SerializeUIElement(uiElement);
            } 
        }
 
        ///  
        /// Called to serialize a single UIElement
        ///  
        private
        void
        SerializeUIElement(
            object uiElement 
            )
        { 
            Visual visual = uiElement as Visual; 

            if(visual != null) 
            {
                ReachSerializer serializer = SerializationManager.GetSerializer(visual);

                if(serializer!=null) 
                {
                    serializer.SerializeObject(visual); 
                } 
                else
                { 
                    throw new XpsSerializationException(ReachSR.Get(ReachSRID.ReachSerialization_NoSerializer));
                }
            }
        } 

        #endregion Private Methods 
    }; 

    internal class NgcUIElementCollectionSerializerContext : 
                   NGCSerializerContext
    {
        public
        NgcUIElementCollectionSerializerContext( 
            NGCSerializerAsync          serializer,
            SerializableObjectContext   objectContext, 
            IEnumerator                 enumerator, 
            SerializerAction            action
            ): 
            base(serializer,objectContext,action)
        {
            this._enumerator = enumerator;
        } 

 
        public 
        IEnumerator
        Enumerator 
        {
            get
            {
                return _enumerator; 
            }
        } 
 
        private
        IEnumerator     _enumerator; 
    };
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
                        

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