Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / NetFx40 / Tools / System.Activities.Presentation / System / Activities / Presentation / Xaml / DesignTimeXamlWriter.cs / 1305376 / DesignTimeXamlWriter.cs
//---------------------------------------------------------------- // Copyright (c) Microsoft Corporation. All rights reserved. //--------------------------------------------------------------- namespace System.Activities.Presentation.Xaml { using System.Collections.Generic; using System.Globalization; using System.IO; using System.Xaml; using System.Xml; class DesignTimeXamlWriter : XamlXmlWriter { //namespaces to ignore (don't load assembilies for) at root node HashSetnamespacesToIgnore; //namespaces we've seen at root level, we use this to figure out appropriate alias for MC namespace HashSet rootLevelNamespaces; // for duplicate namespace filtering (happens if we're using the local assembly to compile itself) HashSet emittedNamespacesInLocalAssembly; //For namespace defined in local assembly with assembly info in namespace declaration, we'll strip out the assembly info //and hold the namespace temporarily. Before writing the start object, we'll check whether the short version gets written //as a separate declaration, if not, we write it out. List localNamespacesWithAssemblyInfo; bool hasWrittenObject; WorkflowDesignerXamlSchemaContext schemaContext; public DesignTimeXamlWriter(TextWriter textWriter, WorkflowDesignerXamlSchemaContext context) : base(XmlWriter.Create(textWriter, new XmlWriterSettings { Indent = true, OmitXmlDeclaration = true }), context, // Setting AssumeValidInput to true allows to save a document even if it has duplicate members new XamlXmlWriterSettings { AssumeValidInput = true }) { this.namespacesToIgnore = new HashSet (); this.rootLevelNamespaces = new HashSet (); this.schemaContext = context; } public override void WriteNamespace(NamespaceDeclaration namespaceDeclaration) { if (!this.hasWrittenObject) { //we need to track every namespace alias appeared in root element to figure out right alias for MC namespace this.rootLevelNamespaces.Add(namespaceDeclaration.Prefix); //Remember namespaces needed to be ignored at top level so we will add ignore attribute for them when we write start object if (NameSpaces.ShouldIgnore(namespaceDeclaration.Namespace)) { this.namespacesToIgnore.Add(namespaceDeclaration.Prefix); } } EmitNamespace(namespaceDeclaration); } void EmitNamespace(NamespaceDeclaration namespaceDeclaration) { // Write the namespace, filtering for duplicates in the local assembly because VS might be using it to compile itself. if (schemaContext.IsClrNamespaceWithNoAssembly(namespaceDeclaration.Namespace)) { // Might still need to trim a semicolon, even though it shouldn't strictly be there. string nonassemblyQualifedNamespace = namespaceDeclaration.Namespace; if (nonassemblyQualifedNamespace[nonassemblyQualifedNamespace.Length - 1] == ';') { nonassemblyQualifedNamespace = nonassemblyQualifedNamespace.Substring(0, nonassemblyQualifedNamespace.Length - 1); namespaceDeclaration = new NamespaceDeclaration(nonassemblyQualifedNamespace, namespaceDeclaration.Prefix); } EmitLocalNamespace(namespaceDeclaration); } else if (schemaContext.IsClrNamespaceInLocalAssembly(namespaceDeclaration.Namespace)) { string nonassemblyQualifedNamespace = schemaContext.TrimLocalAssembly(namespaceDeclaration.Namespace); namespaceDeclaration = new NamespaceDeclaration(nonassemblyQualifedNamespace, namespaceDeclaration.Prefix); if (this.localNamespacesWithAssemblyInfo == null) { this.localNamespacesWithAssemblyInfo = new List (); } this.localNamespacesWithAssemblyInfo.Add(namespaceDeclaration); } else { base.WriteNamespace(namespaceDeclaration); } } void EmitLocalNamespace(NamespaceDeclaration namespaceDeclaration) { if (this.emittedNamespacesInLocalAssembly == null) // lazy initialization { this.emittedNamespacesInLocalAssembly = new HashSet (); } // Write the namespace only once. Add() returns false if it was already there. if (this.emittedNamespacesInLocalAssembly.Add(namespaceDeclaration.Namespace)) { base.WriteNamespace(namespaceDeclaration); } } public override void WriteStartObject(XamlType type) { // this is the top-level object if (!this.hasWrittenObject) { // we need to write MC namespace if any namespaces need to be ignored if (this.namespacesToIgnore.Count > 0) { string mcNamespaceAlias = GenerateNamespaceAlias(NameSpaces.McPrefix); this.WriteNamespace(new NamespaceDeclaration(NameSpaces.Mc, mcNamespaceAlias)); } if (this.localNamespacesWithAssemblyInfo != null) { foreach (NamespaceDeclaration xamlNamespace in this.localNamespacesWithAssemblyInfo) { if ((this.emittedNamespacesInLocalAssembly == null) || (!this.emittedNamespacesInLocalAssembly.Contains(xamlNamespace.Namespace))) { base.WriteNamespace(xamlNamespace); } } } } base.WriteStartObject(type); if (!this.hasWrittenObject) { // we need to add Ignore attribute for all namespaces which we don't want to load assemblies for // this has to be done after WriteStartObject if (this.namespacesToIgnore.Count > 0) { foreach (string ns in this.namespacesToIgnore) { XamlDirective ignorable = new XamlDirective(NameSpaces.Mc, "Ignorable"); base.WriteStartMember(ignorable); base.WriteValue(ns); base.WriteEndMember(); } this.namespacesToIgnore.Clear(); } this.hasWrittenObject = true; } } string GenerateNamespaceAlias(string prefix) { string aliasPostfix = string.Empty; //try "mc"~"mc1000" first for (int i = 1; i <= 1000; i++) { string mcAlias = prefix + aliasPostfix; if (!this.rootLevelNamespaces.Contains(mcAlias)) { return mcAlias; } aliasPostfix = i.ToString(CultureInfo.InvariantCulture); } //roll the dice return prefix + Guid.NewGuid().ToString(); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------- // Copyright (c) Microsoft Corporation. All rights reserved. //--------------------------------------------------------------- namespace System.Activities.Presentation.Xaml { using System.Collections.Generic; using System.Globalization; using System.IO; using System.Xaml; using System.Xml; class DesignTimeXamlWriter : XamlXmlWriter { //namespaces to ignore (don't load assembilies for) at root node HashSet namespacesToIgnore; //namespaces we've seen at root level, we use this to figure out appropriate alias for MC namespace HashSet rootLevelNamespaces; // for duplicate namespace filtering (happens if we're using the local assembly to compile itself) HashSet emittedNamespacesInLocalAssembly; //For namespace defined in local assembly with assembly info in namespace declaration, we'll strip out the assembly info //and hold the namespace temporarily. Before writing the start object, we'll check whether the short version gets written //as a separate declaration, if not, we write it out. List localNamespacesWithAssemblyInfo; bool hasWrittenObject; WorkflowDesignerXamlSchemaContext schemaContext; public DesignTimeXamlWriter(TextWriter textWriter, WorkflowDesignerXamlSchemaContext context) : base(XmlWriter.Create(textWriter, new XmlWriterSettings { Indent = true, OmitXmlDeclaration = true }), context, // Setting AssumeValidInput to true allows to save a document even if it has duplicate members new XamlXmlWriterSettings { AssumeValidInput = true }) { this.namespacesToIgnore = new HashSet (); this.rootLevelNamespaces = new HashSet (); this.schemaContext = context; } public override void WriteNamespace(NamespaceDeclaration namespaceDeclaration) { if (!this.hasWrittenObject) { //we need to track every namespace alias appeared in root element to figure out right alias for MC namespace this.rootLevelNamespaces.Add(namespaceDeclaration.Prefix); //Remember namespaces needed to be ignored at top level so we will add ignore attribute for them when we write start object if (NameSpaces.ShouldIgnore(namespaceDeclaration.Namespace)) { this.namespacesToIgnore.Add(namespaceDeclaration.Prefix); } } EmitNamespace(namespaceDeclaration); } void EmitNamespace(NamespaceDeclaration namespaceDeclaration) { // Write the namespace, filtering for duplicates in the local assembly because VS might be using it to compile itself. if (schemaContext.IsClrNamespaceWithNoAssembly(namespaceDeclaration.Namespace)) { // Might still need to trim a semicolon, even though it shouldn't strictly be there. string nonassemblyQualifedNamespace = namespaceDeclaration.Namespace; if (nonassemblyQualifedNamespace[nonassemblyQualifedNamespace.Length - 1] == ';') { nonassemblyQualifedNamespace = nonassemblyQualifedNamespace.Substring(0, nonassemblyQualifedNamespace.Length - 1); namespaceDeclaration = new NamespaceDeclaration(nonassemblyQualifedNamespace, namespaceDeclaration.Prefix); } EmitLocalNamespace(namespaceDeclaration); } else if (schemaContext.IsClrNamespaceInLocalAssembly(namespaceDeclaration.Namespace)) { string nonassemblyQualifedNamespace = schemaContext.TrimLocalAssembly(namespaceDeclaration.Namespace); namespaceDeclaration = new NamespaceDeclaration(nonassemblyQualifedNamespace, namespaceDeclaration.Prefix); if (this.localNamespacesWithAssemblyInfo == null) { this.localNamespacesWithAssemblyInfo = new List (); } this.localNamespacesWithAssemblyInfo.Add(namespaceDeclaration); } else { base.WriteNamespace(namespaceDeclaration); } } void EmitLocalNamespace(NamespaceDeclaration namespaceDeclaration) { if (this.emittedNamespacesInLocalAssembly == null) // lazy initialization { this.emittedNamespacesInLocalAssembly = new HashSet (); } // Write the namespace only once. Add() returns false if it was already there. if (this.emittedNamespacesInLocalAssembly.Add(namespaceDeclaration.Namespace)) { base.WriteNamespace(namespaceDeclaration); } } public override void WriteStartObject(XamlType type) { // this is the top-level object if (!this.hasWrittenObject) { // we need to write MC namespace if any namespaces need to be ignored if (this.namespacesToIgnore.Count > 0) { string mcNamespaceAlias = GenerateNamespaceAlias(NameSpaces.McPrefix); this.WriteNamespace(new NamespaceDeclaration(NameSpaces.Mc, mcNamespaceAlias)); } if (this.localNamespacesWithAssemblyInfo != null) { foreach (NamespaceDeclaration xamlNamespace in this.localNamespacesWithAssemblyInfo) { if ((this.emittedNamespacesInLocalAssembly == null) || (!this.emittedNamespacesInLocalAssembly.Contains(xamlNamespace.Namespace))) { base.WriteNamespace(xamlNamespace); } } } } base.WriteStartObject(type); if (!this.hasWrittenObject) { // we need to add Ignore attribute for all namespaces which we don't want to load assemblies for // this has to be done after WriteStartObject if (this.namespacesToIgnore.Count > 0) { foreach (string ns in this.namespacesToIgnore) { XamlDirective ignorable = new XamlDirective(NameSpaces.Mc, "Ignorable"); base.WriteStartMember(ignorable); base.WriteValue(ns); base.WriteEndMember(); } this.namespacesToIgnore.Clear(); } this.hasWrittenObject = true; } } string GenerateNamespaceAlias(string prefix) { string aliasPostfix = string.Empty; //try "mc"~"mc1000" first for (int i = 1; i <= 1000; i++) { string mcAlias = prefix + aliasPostfix; if (!this.rootLevelNamespaces.Contains(mcAlias)) { return mcAlias; } aliasPostfix = i.ToString(CultureInfo.InvariantCulture); } //roll the dice return prefix + Guid.NewGuid().ToString(); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- ArithmeticException.cs
- BasicCommandTreeVisitor.cs
- MultiPageTextView.cs
- ListItemCollection.cs
- EntityTemplateUserControl.cs
- SqlCommandSet.cs
- XmlAnyElementAttribute.cs
- Animatable.cs
- LinearGradientBrush.cs
- NativeWindow.cs
- XmlObjectSerializerWriteContext.cs
- DataGrid.cs
- Decorator.cs
- XmlMembersMapping.cs
- StateMachine.cs
- SqlStatistics.cs
- InvariantComparer.cs
- FormViewPageEventArgs.cs
- MD5.cs
- Token.cs
- CircleHotSpot.cs
- ExtentCqlBlock.cs
- XmlMapping.cs
- HttpFileCollection.cs
- MailBnfHelper.cs
- AnnotationResource.cs
- IODescriptionAttribute.cs
- LocatorBase.cs
- ObjectPersistData.cs
- XmlSchemaAny.cs
- EventArgs.cs
- SuppressIldasmAttribute.cs
- GetCryptoTransformRequest.cs
- WebAdminConfigurationHelper.cs
- IPipelineRuntime.cs
- ConstraintCollection.cs
- TakeOrSkipQueryOperator.cs
- Int16Storage.cs
- SmiContextFactory.cs
- XmlObjectSerializerReadContextComplexJson.cs
- Transform3D.cs
- HttpGetClientProtocol.cs
- ContentOperations.cs
- ImageAttributes.cs
- FilteredAttributeCollection.cs
- HTTPNotFoundHandler.cs
- MobileContainerDesigner.cs
- DeobfuscatingStream.cs
- PropertyGrid.cs
- ConfigXmlComment.cs
- Cell.cs
- SelectionProcessor.cs
- AutoResetEvent.cs
- DiscoveryDocumentReference.cs
- MessageBox.cs
- WindowsPen.cs
- GeneralTransform3DCollection.cs
- DrawingBrush.cs
- SerializationAttributes.cs
- SectionInput.cs
- MoveSizeWinEventHandler.cs
- Function.cs
- StringDictionaryEditor.cs
- MemberDescriptor.cs
- LinkButton.cs
- DiscreteKeyFrames.cs
- IPipelineRuntime.cs
- TaiwanLunisolarCalendar.cs
- DataTableCollection.cs
- CustomValidator.cs
- IssuerInformation.cs
- WebPartAddingEventArgs.cs
- InkCanvasFeedbackAdorner.cs
- EmptyEnumerator.cs
- ExpressionParser.cs
- FirstMatchCodeGroup.cs
- SqlBooleanizer.cs
- PageStatePersister.cs
- XamlParser.cs
- ToolBarButtonClickEvent.cs
- SetIndexBinder.cs
- EditCommandColumn.cs
- cryptoapiTransform.cs
- IndexingContentUnit.cs
- DesigntimeLicenseContext.cs
- Multiply.cs
- CssStyleCollection.cs
- SqlDuplicator.cs
- Group.cs
- TableLayoutCellPaintEventArgs.cs
- XmlNodeWriter.cs
- XmlWriterSettings.cs
- StreamSecurityUpgradeInitiatorBase.cs
- HttpStreamXmlDictionaryReader.cs
- BamlBinaryWriter.cs
- Stylus.cs
- TransformerConfigurationWizardBase.cs
- DataGridViewColumn.cs
- AsymmetricKeyExchangeDeformatter.cs
- Int64Storage.cs