mcs/class/System.XML/Mono.Xml.Xsl.Operations/XslCallTemplate.cs

   1 //
   2 // XslCallTemplate.cs
   3 //
   4 // Authors:
   5 //      Ben Maurer (bmaurer@users.sourceforge.net)
   6 //      Atsushi Enomoto (ginga@kit.hi-ho.ne.jp)
   7 //
   8 // (C) 2003 Ben Maurer
   9 // (C) 2003 Atsushi Enomoto
  10 //
  11
  12 using System;
  13 using System.Collections;
  14 using System.Xml;
  15 using System.Xml.XPath;
  16 using System.Xml.Xsl;
  17
  18 namespace Mono.Xml.Xsl.Operations {
  19         public class XslCallTemplate : XslCompiledElement {
  20                 XmlQualifiedName name;
  21                 ArrayList withParams = new ArrayList ();
  22                 public XslCallTemplate (Compiler c) : base (c) {}
  23
  24                 protected override void Compile (Compiler c)
  25                 {
  26                         c.AssertAttribute ("name");
  27                         name = c.ParseQNameAttribute ("name");
  28
  29                         if (c.Input.MoveToFirstChild ()) {
  30                                 do {
  31                                         switch (c.Input.NodeType) {
  32                                         case XPathNodeType.Comment:
  33                                         case XPathNodeType.ProcessingInstruction:
  34                                         case XPathNodeType.Whitespace:
  35                                                 continue;
  36                                         case XPathNodeType.Element:
  37                                                 if (c.Input.NamespaceURI != XsltNamespace)
  38                                                         throw new Exception ("unexptected element"); // TODO: fwd compat
  39
  40                                                 switch (c.Input.LocalName)
  41                                                 {
  42                                                         case "with-param":
  43                                                                 withParams.Add (new XslVariableInformation (c));
  44                                                                 break;
  45                                                         default:
  46                                                                 throw new Exception ("unexptected element"); // todo forwards compat
  47                                                 }
  48                                                 break;
  49                                         default:
  50                                                 throw new Exception ("unexptected node type " + c.Input.NodeType); // TODO: fwd compat
  51                                         }
  52                                 } while (c.Input.MoveToNext ());
  53                                 c.Input.MoveToParent ();
  54                         }
  55                 }
  56
  57                 public override void Evaluate (XslTransformProcessor p)
  58                 {
  59                         Hashtable passedParams = null;
  60
  61                         if (withParams.Count > 0) {
  62                                 passedParams = new Hashtable ();
  63                                 foreach (XslVariableInformation param in withParams)
  64                                         passedParams [param.Name] = param.Evaluate (p);
  65                         }
  66
  67                         p.CallTemplate (name, passedParams);
  68                 }
  69         }
  70 }