Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WF / Common / AuthoringOM / Serializer / DependencyObjectCodeDomSerializer.cs / 1305376 / DependencyObjectCodeDomSerializer.cs
namespace System.Workflow.ComponentModel.Serialization
{
using System;
using System.CodeDom;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.ComponentModel.Design.Serialization;
using System.Collections;
using System.Resources;
using System.Workflow.ComponentModel.Design;
using System.Collections.Generic;
using Microsoft.CSharp;
using System.Workflow.ComponentModel;
using System.Workflow.ComponentModel.Compiler;
using System.CodeDom.Compiler;
using System.IO;
using System.Reflection;
using System.Diagnostics;
#region Class DependencyObjectCodeDomSerializer
public class DependencyObjectCodeDomSerializer : CodeDomSerializer
{
public DependencyObjectCodeDomSerializer()
{
}
public override object Serialize(IDesignerSerializationManager manager, object obj)
{
if (manager == null)
throw new ArgumentNullException("manager");
if (manager.Context == null)
throw new ArgumentException("manager", SR.GetString(SR.Error_MissingContextProperty));
if (obj == null)
throw new ArgumentNullException("obj");
DependencyObject dependencyObject = obj as DependencyObject;
if (dependencyObject == null)
throw new ArgumentException(SR.GetString(SR.Error_UnexpectedArgumentType, typeof(DependencyObject).FullName), "obj");
Activity activity = obj as Activity;
if (activity != null)
manager.Context.Push(activity);
CodeStatementCollection retVal = null;
try
{
if (activity != null)
{
CodeDomSerializer componentSerializer = manager.GetSerializer(typeof(Component), typeof(CodeDomSerializer)) as CodeDomSerializer;
if (componentSerializer == null)
throw new InvalidOperationException(SR.GetString(SR.General_MissingService, typeof(CodeDomSerializer).FullName));
retVal = componentSerializer.Serialize(manager, activity) as CodeStatementCollection;
}
else
{
retVal = base.Serialize(manager, obj) as CodeStatementCollection;
}
if (retVal != null)
{
CodeStatementCollection codeStatements = new CodeStatementCollection(retVal);
CodeExpression objectExpression = SerializeToExpression(manager, obj);
if (objectExpression != null)
{
ArrayList propertiesSerialized = new ArrayList();
List dependencyProperties = new List(dependencyObject.MetaDependencyProperties);
foreach (DependencyProperty dp in dependencyObject.DependencyPropertyValues.Keys)
{
if (dp.IsAttached)
{
if ((dp.IsEvent && dp.OwnerType.GetField(dp.Name + "Event", BindingFlags.Static | BindingFlags.Public | BindingFlags.DeclaredOnly) != null) ||
(!dp.IsEvent && dp.OwnerType.GetField(dp.Name + "Property", BindingFlags.Static | BindingFlags.Public | BindingFlags.DeclaredOnly) != null))
dependencyProperties.Add(dp);
}
}
foreach (DependencyProperty dependencyProperty in dependencyProperties)
{
object value = null;
if (dependencyObject.IsBindingSet(dependencyProperty))
value = dependencyObject.GetBinding(dependencyProperty);
else if(!dependencyProperty.IsEvent)
value = dependencyObject.GetValue(dependencyProperty);
else
value = dependencyObject.GetHandler(dependencyProperty);
// Attached property should always be set through SetValue, no matter if it's a meta property or if there is a data context.
// Other meta properties will be directly assigned.
// Other instance property will go through SetValue if there is a data context or if it's of type Bind.
if (value != null &&
(dependencyProperty.IsAttached || (!dependencyProperty.DefaultMetadata.IsMetaProperty && value is ActivityBind)))
{
object[] attributes = dependencyProperty.DefaultMetadata.GetAttributes(typeof(DesignerSerializationVisibilityAttribute));
if (attributes.Length > 0)
{
DesignerSerializationVisibilityAttribute serializationVisibilityAttribute = attributes[0] as DesignerSerializationVisibilityAttribute;
if (serializationVisibilityAttribute.Visibility == DesignerSerializationVisibility.Hidden)
continue;
}
// Events of type Bind will go through here. Regular events will go through IEventBindingService.
CodeExpression param1 = null;
string dependencyPropertyName = dependencyProperty.Name + ((dependencyProperty.IsEvent) ? "Event" : "Property");
FieldInfo fieldInfo = dependencyProperty.OwnerType.GetField(dependencyPropertyName, BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Static);
if (fieldInfo != null && !fieldInfo.IsPublic)
param1 = new CodeMethodInvokeExpression(new CodeTypeReferenceExpression(typeof(DependencyProperty)), "FromName", new CodePrimitiveExpression(dependencyProperty.Name), new CodeTypeOfExpression(dependencyProperty.OwnerType));
else
param1 = new CodeFieldReferenceExpression(new CodeTypeReferenceExpression(dependencyProperty.OwnerType), dependencyPropertyName);
CodeExpression param2 = SerializeToExpression(manager, value);
//Fields property fails to serialize to expression due to reference not being created,
//the actual code for fields are generated in datacontext code generator so we do nothing here
if (param1 != null && param2 != null)
{
CodeMethodInvokeExpression codeMethodInvokeExpr = null;
if(value is ActivityBind)
codeMethodInvokeExpr = new CodeMethodInvokeExpression(objectExpression, "SetBinding", new CodeExpression[] { param1, new CodeCastExpression(new CodeTypeReference(typeof(ActivityBind)), param2) });
else
codeMethodInvokeExpr = new CodeMethodInvokeExpression(objectExpression, (dependencyProperty.IsEvent) ? "AddHandler" : "SetValue", new CodeExpression[] { param1, param2 });
retVal.Add(codeMethodInvokeExpr);
// Remove the property set statement for the event which is replaced by the SetValue() expression.
foreach (CodeStatement statement in codeStatements)
{
if (statement is CodeAssignStatement && ((CodeAssignStatement)statement).Left is CodePropertyReferenceExpression)
{
CodePropertyReferenceExpression prop = ((CodeAssignStatement)statement).Left as CodePropertyReferenceExpression;
if (prop.PropertyName == dependencyProperty.Name && prop.TargetObject.Equals(objectExpression))
retVal.Remove(statement);
}
}
}
propertiesSerialized.Add(dependencyProperty);
}
}
IEventBindingService eventBindingService = manager.GetService(typeof(IEventBindingService)) as IEventBindingService;
if (eventBindingService == null)
{
// At compile time, we don't have an event binding service. We need to mannually emit the code to add
// event handlers.
foreach (EventDescriptor eventDesc in TypeDescriptor.GetEvents(dependencyObject))
{
string handler = WorkflowMarkupSerializationHelpers.GetEventHandlerName(dependencyObject, eventDesc.Name);
if (!string.IsNullOrEmpty(handler))
{
CodeEventReferenceExpression eventRef = new CodeEventReferenceExpression(objectExpression, eventDesc.Name);
CodeDelegateCreateExpression listener = new CodeDelegateCreateExpression(new CodeTypeReference(eventDesc.EventType), new CodeThisReferenceExpression(), handler);
retVal.Add(new CodeAttachEventStatement(eventRef, listener));
}
}
}
// We also need to handle properties of type System.Type. If the value is a design time type, xomlserializer
// is not going to be able to deserialize the type. We then store the type name in the user data and
// output a "typeof(xxx)" expression using the type name w/o validating the type.
if (dependencyObject.UserData.Contains(UserDataKeys.DesignTimeTypeNames))
{
Hashtable typeNames = dependencyObject.UserData[UserDataKeys.DesignTimeTypeNames] as Hashtable;
foreach (object key in typeNames.Keys)
{
string propName = null;
string ownerTypeName = null;
string typeName = typeNames[key] as string;
DependencyProperty dependencyProperty = key as DependencyProperty;
if (dependencyProperty != null)
{
if (propertiesSerialized.Contains(dependencyProperty))
continue;
object[] attributes = dependencyProperty.DefaultMetadata.GetAttributes(typeof(DesignerSerializationVisibilityAttribute));
if (attributes.Length > 0)
{
DesignerSerializationVisibilityAttribute serializationVisibilityAttribute = attributes[0] as DesignerSerializationVisibilityAttribute;
if (serializationVisibilityAttribute.Visibility == DesignerSerializationVisibility.Hidden)
continue;
}
propName = dependencyProperty.Name;
ownerTypeName = dependencyProperty.OwnerType.FullName;
}
else if (key is string)
{
int indexOfDot = ((string)key).LastIndexOf('.');
Debug.Assert(indexOfDot != -1, "Wrong property name in DesignTimeTypeNames hashtable.");
if (indexOfDot != -1)
{
ownerTypeName = ((string)key).Substring(0, indexOfDot);
propName = ((string)key).Substring(indexOfDot + 1);
}
}
if (!string.IsNullOrEmpty(typeName) && !string.IsNullOrEmpty(propName) && !string.IsNullOrEmpty(ownerTypeName))
{
if (ownerTypeName == obj.GetType().FullName)
{
// Property is not an attached property. Serialize using regular property set expression.
CodePropertyReferenceExpression propertyRef = new CodePropertyReferenceExpression(objectExpression, propName);
retVal.Add(new CodeAssignStatement(propertyRef, new CodeTypeOfExpression(typeName)));
}
else
{
// This is an attached property. Serialize using SetValue() expression.
CodeExpression param1 = new CodeFieldReferenceExpression(new CodeTypeReferenceExpression(ownerTypeName), propName + "Property");
CodeExpression param2 = new CodeTypeOfExpression(typeName);
retVal.Add(new CodeMethodInvokeExpression(objectExpression, "SetValue", new CodeExpression[] { param1, param2 }));
}
}
}
}
}
}
}
finally
{
if (activity != null)
{
object pushedActivity = manager.Context.Pop();
System.Diagnostics.Debug.Assert(pushedActivity == activity);
}
}
return retVal;
}
}
#endregion
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
namespace System.Workflow.ComponentModel.Serialization
{
using System;
using System.CodeDom;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.ComponentModel.Design.Serialization;
using System.Collections;
using System.Resources;
using System.Workflow.ComponentModel.Design;
using System.Collections.Generic;
using Microsoft.CSharp;
using System.Workflow.ComponentModel;
using System.Workflow.ComponentModel.Compiler;
using System.CodeDom.Compiler;
using System.IO;
using System.Reflection;
using System.Diagnostics;
#region Class DependencyObjectCodeDomSerializer
public class DependencyObjectCodeDomSerializer : CodeDomSerializer
{
public DependencyObjectCodeDomSerializer()
{
}
public override object Serialize(IDesignerSerializationManager manager, object obj)
{
if (manager == null)
throw new ArgumentNullException("manager");
if (manager.Context == null)
throw new ArgumentException("manager", SR.GetString(SR.Error_MissingContextProperty));
if (obj == null)
throw new ArgumentNullException("obj");
DependencyObject dependencyObject = obj as DependencyObject;
if (dependencyObject == null)
throw new ArgumentException(SR.GetString(SR.Error_UnexpectedArgumentType, typeof(DependencyObject).FullName), "obj");
Activity activity = obj as Activity;
if (activity != null)
manager.Context.Push(activity);
CodeStatementCollection retVal = null;
try
{
if (activity != null)
{
CodeDomSerializer componentSerializer = manager.GetSerializer(typeof(Component), typeof(CodeDomSerializer)) as CodeDomSerializer;
if (componentSerializer == null)
throw new InvalidOperationException(SR.GetString(SR.General_MissingService, typeof(CodeDomSerializer).FullName));
retVal = componentSerializer.Serialize(manager, activity) as CodeStatementCollection;
}
else
{
retVal = base.Serialize(manager, obj) as CodeStatementCollection;
}
if (retVal != null)
{
CodeStatementCollection codeStatements = new CodeStatementCollection(retVal);
CodeExpression objectExpression = SerializeToExpression(manager, obj);
if (objectExpression != null)
{
ArrayList propertiesSerialized = new ArrayList();
List dependencyProperties = new List(dependencyObject.MetaDependencyProperties);
foreach (DependencyProperty dp in dependencyObject.DependencyPropertyValues.Keys)
{
if (dp.IsAttached)
{
if ((dp.IsEvent && dp.OwnerType.GetField(dp.Name + "Event", BindingFlags.Static | BindingFlags.Public | BindingFlags.DeclaredOnly) != null) ||
(!dp.IsEvent && dp.OwnerType.GetField(dp.Name + "Property", BindingFlags.Static | BindingFlags.Public | BindingFlags.DeclaredOnly) != null))
dependencyProperties.Add(dp);
}
}
foreach (DependencyProperty dependencyProperty in dependencyProperties)
{
object value = null;
if (dependencyObject.IsBindingSet(dependencyProperty))
value = dependencyObject.GetBinding(dependencyProperty);
else if(!dependencyProperty.IsEvent)
value = dependencyObject.GetValue(dependencyProperty);
else
value = dependencyObject.GetHandler(dependencyProperty);
// Attached property should always be set through SetValue, no matter if it's a meta property or if there is a data context.
// Other meta properties will be directly assigned.
// Other instance property will go through SetValue if there is a data context or if it's of type Bind.
if (value != null &&
(dependencyProperty.IsAttached || (!dependencyProperty.DefaultMetadata.IsMetaProperty && value is ActivityBind)))
{
object[] attributes = dependencyProperty.DefaultMetadata.GetAttributes(typeof(DesignerSerializationVisibilityAttribute));
if (attributes.Length > 0)
{
DesignerSerializationVisibilityAttribute serializationVisibilityAttribute = attributes[0] as DesignerSerializationVisibilityAttribute;
if (serializationVisibilityAttribute.Visibility == DesignerSerializationVisibility.Hidden)
continue;
}
// Events of type Bind will go through here. Regular events will go through IEventBindingService.
CodeExpression param1 = null;
string dependencyPropertyName = dependencyProperty.Name + ((dependencyProperty.IsEvent) ? "Event" : "Property");
FieldInfo fieldInfo = dependencyProperty.OwnerType.GetField(dependencyPropertyName, BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Static);
if (fieldInfo != null && !fieldInfo.IsPublic)
param1 = new CodeMethodInvokeExpression(new CodeTypeReferenceExpression(typeof(DependencyProperty)), "FromName", new CodePrimitiveExpression(dependencyProperty.Name), new CodeTypeOfExpression(dependencyProperty.OwnerType));
else
param1 = new CodeFieldReferenceExpression(new CodeTypeReferenceExpression(dependencyProperty.OwnerType), dependencyPropertyName);
CodeExpression param2 = SerializeToExpression(manager, value);
//Fields property fails to serialize to expression due to reference not being created,
//the actual code for fields are generated in datacontext code generator so we do nothing here
if (param1 != null && param2 != null)
{
CodeMethodInvokeExpression codeMethodInvokeExpr = null;
if(value is ActivityBind)
codeMethodInvokeExpr = new CodeMethodInvokeExpression(objectExpression, "SetBinding", new CodeExpression[] { param1, new CodeCastExpression(new CodeTypeReference(typeof(ActivityBind)), param2) });
else
codeMethodInvokeExpr = new CodeMethodInvokeExpression(objectExpression, (dependencyProperty.IsEvent) ? "AddHandler" : "SetValue", new CodeExpression[] { param1, param2 });
retVal.Add(codeMethodInvokeExpr);
// Remove the property set statement for the event which is replaced by the SetValue() expression.
foreach (CodeStatement statement in codeStatements)
{
if (statement is CodeAssignStatement && ((CodeAssignStatement)statement).Left is CodePropertyReferenceExpression)
{
CodePropertyReferenceExpression prop = ((CodeAssignStatement)statement).Left as CodePropertyReferenceExpression;
if (prop.PropertyName == dependencyProperty.Name && prop.TargetObject.Equals(objectExpression))
retVal.Remove(statement);
}
}
}
propertiesSerialized.Add(dependencyProperty);
}
}
IEventBindingService eventBindingService = manager.GetService(typeof(IEventBindingService)) as IEventBindingService;
if (eventBindingService == null)
{
// At compile time, we don't have an event binding service. We need to mannually emit the code to add
// event handlers.
foreach (EventDescriptor eventDesc in TypeDescriptor.GetEvents(dependencyObject))
{
string handler = WorkflowMarkupSerializationHelpers.GetEventHandlerName(dependencyObject, eventDesc.Name);
if (!string.IsNullOrEmpty(handler))
{
CodeEventReferenceExpression eventRef = new CodeEventReferenceExpression(objectExpression, eventDesc.Name);
CodeDelegateCreateExpression listener = new CodeDelegateCreateExpression(new CodeTypeReference(eventDesc.EventType), new CodeThisReferenceExpression(), handler);
retVal.Add(new CodeAttachEventStatement(eventRef, listener));
}
}
}
// We also need to handle properties of type System.Type. If the value is a design time type, xomlserializer
// is not going to be able to deserialize the type. We then store the type name in the user data and
// output a "typeof(xxx)" expression using the type name w/o validating the type.
if (dependencyObject.UserData.Contains(UserDataKeys.DesignTimeTypeNames))
{
Hashtable typeNames = dependencyObject.UserData[UserDataKeys.DesignTimeTypeNames] as Hashtable;
foreach (object key in typeNames.Keys)
{
string propName = null;
string ownerTypeName = null;
string typeName = typeNames[key] as string;
DependencyProperty dependencyProperty = key as DependencyProperty;
if (dependencyProperty != null)
{
if (propertiesSerialized.Contains(dependencyProperty))
continue;
object[] attributes = dependencyProperty.DefaultMetadata.GetAttributes(typeof(DesignerSerializationVisibilityAttribute));
if (attributes.Length > 0)
{
DesignerSerializationVisibilityAttribute serializationVisibilityAttribute = attributes[0] as DesignerSerializationVisibilityAttribute;
if (serializationVisibilityAttribute.Visibility == DesignerSerializationVisibility.Hidden)
continue;
}
propName = dependencyProperty.Name;
ownerTypeName = dependencyProperty.OwnerType.FullName;
}
else if (key is string)
{
int indexOfDot = ((string)key).LastIndexOf('.');
Debug.Assert(indexOfDot != -1, "Wrong property name in DesignTimeTypeNames hashtable.");
if (indexOfDot != -1)
{
ownerTypeName = ((string)key).Substring(0, indexOfDot);
propName = ((string)key).Substring(indexOfDot + 1);
}
}
if (!string.IsNullOrEmpty(typeName) && !string.IsNullOrEmpty(propName) && !string.IsNullOrEmpty(ownerTypeName))
{
if (ownerTypeName == obj.GetType().FullName)
{
// Property is not an attached property. Serialize using regular property set expression.
CodePropertyReferenceExpression propertyRef = new CodePropertyReferenceExpression(objectExpression, propName);
retVal.Add(new CodeAssignStatement(propertyRef, new CodeTypeOfExpression(typeName)));
}
else
{
// This is an attached property. Serialize using SetValue() expression.
CodeExpression param1 = new CodeFieldReferenceExpression(new CodeTypeReferenceExpression(ownerTypeName), propName + "Property");
CodeExpression param2 = new CodeTypeOfExpression(typeName);
retVal.Add(new CodeMethodInvokeExpression(objectExpression, "SetValue", new CodeExpression[] { param1, param2 }));
}
}
}
}
}
}
}
finally
{
if (activity != null)
{
object pushedActivity = manager.Context.Pop();
System.Diagnostics.Debug.Assert(pushedActivity == activity);
}
}
return retVal;
}
}
#endregion
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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