mcs/class/referencesource/System.Data.SqlXml/System/Xml/Xsl/XsltOld/BeginEvent.cs

   1 //------------------------------------------------------------------------------
   2 // <copyright file="BeginEvent.cs" company="Microsoft">
   3 //     Copyright (c) Microsoft Corporation.  All rights reserved.
   4 // </copyright>
   5 // <owner current="true" primary="true">Microsoft</owner>
   6 //------------------------------------------------------------------------------
   7
   8 namespace System.Xml.Xsl.XsltOld {
   9     using Res = System.Xml.Utils.Res;
  10     using System;
  11     using System.Diagnostics;
  12     using System.Xml;
  13     using System.Xml.XPath;
  14
  15     internal class BeginEvent : Event {
  16         private XPathNodeType nodeType;
  17         private string        namespaceUri;
  18         private string        name;
  19         private string        prefix;
  20         private bool          empty;
  21         private object        htmlProps;
  22 #if DEBUG
  23         private bool          replaceNSAliasesDone;
  24 #endif
  25
  26         public BeginEvent(Compiler compiler) {
  27             NavigatorInput input = compiler.Input;
  28             Debug.Assert(input != null);
  29             Debug.Assert(input.NodeType != XPathNodeType.Namespace);
  30             this.nodeType     = input.NodeType;
  31             this.namespaceUri = input.NamespaceURI;
  32             this.name         = input.LocalName;
  33             this.prefix       = input.Prefix;
  34             this.empty        = input.IsEmptyTag;
  35             if (nodeType ==  XPathNodeType.Element) {
  36                 this.htmlProps = HtmlElementProps.GetProps(this.name);
  37             }
  38             else if (nodeType ==  XPathNodeType.Attribute) {
  39                 this.htmlProps = HtmlAttributeProps.GetProps(this.name);
  40             }
  41         }
  42
  43         public override void ReplaceNamespaceAlias(Compiler compiler){
  44 #if DEBUG
  45             Debug.Assert(! replaceNSAliasesDone, "Second attempt to replace NS aliases!. This bad.");
  46             replaceNSAliasesDone = true;
  47 #endif
  48             if (this.nodeType == XPathNodeType.Attribute && this.namespaceUri.Length == 0) {
  49                 return ; // '#default' aren't apply to attributes.
  50             }
  51             NamespaceInfo ResultURIInfo = compiler.FindNamespaceAlias(this.namespaceUri);
  52             if (ResultURIInfo != null) {
  53                 this.namespaceUri = ResultURIInfo.nameSpace;
  54                 if (ResultURIInfo.prefix != null) {
  55                     this.prefix = ResultURIInfo.prefix;
  56                 }
  57             }
  58         }
  59
  60         public override bool Output(Processor processor, ActionFrame frame) {
  61             return processor.BeginEvent(this.nodeType, this.prefix, this.name, this.namespaceUri, this.empty, this.htmlProps, false);
  62         }
  63     }
  64 }