namespace System.Workflow.ComponentModel.Serialization { using System; using System.Reflection; using System.CodeDom; using System.CodeDom.Compiler; using System.Xml; using System.Collections.Generic; using System.Globalization; using System.ComponentModel.Design.Serialization; using System.Text; using System.Workflow.ComponentModel.Design; using System.Workflow.ComponentModel.Compiler; using System.Collections; using System.IO; using System.Diagnostics; using System.ComponentModel; using System.Diagnostics.CodeAnalysis; #region Class ActivityMarkupSerializer [DefaultSerializationProvider(typeof(ActivityMarkupSerializationProvider))] [Obsolete("The System.Workflow.* types are deprecated. Instead, please use the new types from System.Activities.*")] public class ActivityMarkupSerializer : WorkflowMarkupSerializer { private const int minusOne = -1; // some user data keys need to be visible to the user, see #15400 "We should convert the UserDataKeys.DynamicEvents to DependencyProperty." public static readonly DependencyProperty StartLineProperty = DependencyProperty.RegisterAttached("StartLine", typeof(int), typeof(ActivityMarkupSerializer), new PropertyMetadata(minusOne, new Attribute[] { new DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Hidden) })); public static readonly DependencyProperty StartColumnProperty = DependencyProperty.RegisterAttached("StartColumn", typeof(int), typeof(ActivityMarkupSerializer), new PropertyMetadata(minusOne, new Attribute[] { new DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Hidden) })); public static readonly DependencyProperty EndLineProperty = DependencyProperty.RegisterAttached("EndLine", typeof(int), typeof(ActivityMarkupSerializer), new PropertyMetadata(minusOne, new Attribute[] { new DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Hidden) })); public static readonly DependencyProperty EndColumnProperty = DependencyProperty.RegisterAttached("EndColumn", typeof(int), typeof(ActivityMarkupSerializer), new PropertyMetadata(minusOne, new Attribute[] { new DesignerSerializationVisibilityAttribute(DesignerSerializationVisibility.Hidden) })); [SuppressMessage("Microsoft.Globalization", "CA1307:SpecifyStringComparison", MessageId = "System.String.IndexOf(System.String,System.Int32)", Justification = "This is not a security threat since it is called in design time (compile) scenarios")] protected override void OnBeforeSerialize(WorkflowMarkupSerializationManager serializationManager, object obj) { if (serializationManager == null) throw new ArgumentNullException("serializationManager"); if (obj == null) throw new ArgumentNullException("obj"); Activity activity = obj as Activity; if (activity == null) throw new ArgumentException(SR.GetString(SR.Error_UnexpectedArgumentType, typeof(Activity).FullName), "obj"); XmlWriter writer = serializationManager.WorkflowMarkupStack[typeof(XmlWriter)] as XmlWriter; if (writer == null) { //We should not throw an exception here as both of the above properties are internal and //our serializer makes sure that they are always set. Note that OnBeforeSerialize can be //only called by WorkflowMarkupSerializer. Debug.Assert(false); return; } StringWriter stringWriter = serializationManager.WorkflowMarkupStack[typeof(StringWriter)] as StringWriter; if (stringWriter != null) { // we capture the start and end line of the activity getting serialized to xoml writer.Flush(); string currentXoml = stringWriter.ToString(); int startLine = 0; int currentIndex = 0; string newLine = stringWriter.NewLine; int newLineLength = newLine.Length; // Get to the starting line of this activity. while (true) { int nextNewLineIndex = currentXoml.IndexOf(newLine, currentIndex, StringComparison.Ordinal); if (nextNewLineIndex == -1) break; currentIndex = nextNewLineIndex + newLineLength; startLine++; } // We always serialize an element start tag onto exactly 1 line. activity.SetValue(ActivityMarkupSerializer.StartLineProperty, startLine); activity.SetValue(ActivityMarkupSerializer.EndLineProperty, startLine); // Cache the index of the beginning of the line. activity.SetValue(ActivityMarkupSerializer.EndColumnProperty, currentIndex); activity.SetValue(ActivityMarkupSerializer.StartColumnProperty, (currentXoml.IndexOf('<', currentIndex) - currentIndex + 1)); } // write x:Class attribute string className = activity.GetValue(WorkflowMarkupSerializer.XClassProperty) as string; if (className != null) writer.WriteAttributeString(StandardXomlKeys.Definitions_XmlNs_Prefix, StandardXomlKeys.Definitions_Class_LocalName, StandardXomlKeys.Definitions_XmlNs, className); } protected override object CreateInstance(WorkflowMarkupSerializationManager serializationManager, Type type) { XmlReader reader = serializationManager.WorkflowMarkupStack[typeof(XmlReader)] as XmlReader; if (reader == null) { Debug.Assert(false); return null; } object instance = base.CreateInstance(serializationManager, type); if (instance is Activity && (serializationManager.Context[typeof(Activity)] == null && serializationManager.Context[typeof(WorkflowCompilerParameters)] != null)) (instance as Activity).UserData[UserDataKeys.CustomActivity] = false; WorkflowMarkupSourceAttribute[] sourceAttrs = (WorkflowMarkupSourceAttribute[])type.GetCustomAttributes(typeof(WorkflowMarkupSourceAttribute), false); if (instance is CompositeActivity && sourceAttrs.Length > 0 && type.Assembly == serializationManager.LocalAssembly) { object instance2 = null; using (XmlReader reader2 = XmlReader.Create(sourceAttrs[0].FileName)) instance2 = Deserialize(serializationManager, reader2); ReplaceChildActivities(instance as CompositeActivity, instance2 as CompositeActivity); } if (instance is Activity) { int lineNumber = (reader is IXmlLineInfo) ? ((IXmlLineInfo)reader).LineNumber : 1; int linePosition = (reader is IXmlLineInfo) ? ((IXmlLineInfo)reader).LinePosition : 1; int startLine = lineNumber - 1; int startColumn = linePosition - 1; bool fAttributeExists = false; while (reader.MoveToNextAttribute()) fAttributeExists = true; int endLine = lineNumber - 1; int endColumn; if (fAttributeExists) { reader.ReadAttributeValue(); endColumn = linePosition + reader.Value.Length; } else endColumn = linePosition + reader.Name.Length - 1; reader.MoveToElement(); System.Diagnostics.Debug.Assert(startLine + 1 == lineNumber && startColumn + 1 == linePosition, "Error getting (line, column)!"); Activity activity = (Activity)instance; activity.SetValue(ActivityMarkupSerializer.StartLineProperty, startLine); activity.SetValue(ActivityMarkupSerializer.StartColumnProperty, startColumn); activity.SetValue(ActivityMarkupSerializer.EndLineProperty, endLine); activity.SetValue(ActivityMarkupSerializer.EndColumnProperty, endColumn); } return instance; } [SuppressMessage("Microsoft.Globalization", "CA1307:SpecifyStringComparison", MessageId = "System.String.IndexOf(System.String,System.Int32)", Justification = "This is not a security threat since it is called in design time (compile) scenarios")] protected override void OnAfterSerialize(WorkflowMarkupSerializationManager serializationManager, object obj) { if (serializationManager == null) throw new ArgumentNullException("serializationManager"); if (obj == null) throw new ArgumentNullException("obj"); Activity activity = obj as Activity; if (activity == null) throw new ArgumentException(SR.GetString(SR.Error_UnexpectedArgumentType, typeof(Activity).FullName), "obj"); XmlWriter writer = serializationManager.WorkflowMarkupStack[typeof(XmlWriter)] as XmlWriter; if (writer == null) { Debug.Assert(false); return; } StringWriter stringWriter = serializationManager.WorkflowMarkupStack[typeof(StringWriter)] as StringWriter; if (stringWriter != null) { string currentXoml = stringWriter.ToString(); int lineStartIndex = (int)activity.GetValue(ActivityMarkupSerializer.EndColumnProperty); int lastNewLine = currentXoml.IndexOf(stringWriter.NewLine, (int)lineStartIndex, StringComparison.Ordinal); if (lastNewLine == -1) activity.SetValue(ActivityMarkupSerializer.EndColumnProperty, (currentXoml.Length - lineStartIndex - 1)); else activity.SetValue(ActivityMarkupSerializer.EndColumnProperty, lastNewLine - lineStartIndex); } CodeTypeMemberCollection codeSegments = activity.GetValue(WorkflowMarkupSerializer.XCodeProperty) as CodeTypeMemberCollection; if (codeSegments != null) { foreach (CodeSnippetTypeMember cs in codeSegments) { if (cs.Text == null) continue; writer.WriteStartElement(StandardXomlKeys.Definitions_XmlNs_Prefix, StandardXomlKeys.Definitions_Code_LocalName, StandardXomlKeys.Definitions_XmlNs); int depth = serializationManager.WriterDepth; StringBuilder prettySegment = new StringBuilder(); if (cs.UserData.Contains(UserDataKeys.CodeSegment_New)) { prettySegment.AppendLine(); string[] lines = cs.Text.Trim().Split(new string[] { "\r\n" }, StringSplitOptions.None); foreach (string line in lines) { prettySegment.Append(writer.Settings.IndentChars); prettySegment.Append(line); prettySegment.AppendLine(); } prettySegment.Append(writer.Settings.IndentChars); } else { prettySegment.Append(cs.Text); } writer.WriteCData(prettySegment.ToString()); writer.WriteEndElement(); } } } internal static void ReplaceChildActivities(CompositeActivity instanceActivity, CompositeActivity xomlActivity) { ArrayList activities = new ArrayList(); foreach (Activity activity1 in (xomlActivity as CompositeActivity).Activities) { activities.Add(activity1); } try { // Clear the activities instanceActivity.CanModifyActivities = true; xomlActivity.CanModifyActivities = true; instanceActivity.Activities.Clear(); xomlActivity.Activities.Clear(); foreach (Activity activity in activities) { instanceActivity.Activities.Add(activity); } } finally { instanceActivity.CanModifyActivities = false; xomlActivity.CanModifyActivities = false; } if (!instanceActivity.UserData.Contains(UserDataKeys.CustomActivity)) instanceActivity.UserData[UserDataKeys.CustomActivity] = (instanceActivity.Activities.Count > 0); } } #endregion }