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

   1 //
   2 // XslLiteralElement.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 //
  13 // Permission is hereby granted, free of charge, to any person obtaining
  14 // a copy of this software and associated documentation files (the
  15 // "Software"), to deal in the Software without restriction, including
  16 // without limitation the rights to use, copy, modify, merge, publish,
  17 // distribute, sublicense, and/or sell copies of the Software, and to
  18 // permit persons to whom the Software is furnished to do so, subject to
  19 // the following conditions:
  20 //
  21 // The above copyright notice and this permission notice shall be
  22 // included in all copies or substantial portions of the Software.
  23 //
  24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  28 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  29 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  30 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  31 //
  32
  33 using System;
  34 using System.Collections;
  35 using System.Xml;
  36 using System.Xml.XPath;
  37 using System.Xml.Xsl;
  38
  39 namespace Mono.Xml.Xsl.Operations {
  40         internal class XslLiteralElement : XslCompiledElement {
  41                 XslOperation children;
  42                 string localname, prefix, nsUri;
  43                 bool isEmptyElement;
  44                 ArrayList attrs;
  45                 XmlQualifiedName [] useAttributeSets;
  46                 Hashtable nsDecls;
  47
  48                 public XslLiteralElement (Compiler c) : base (c) {}
  49
  50                 class XslLiteralAttribute {
  51                         string localname, prefix, nsUri;
  52                         XslAvt val;
  53
  54                         public XslLiteralAttribute (Compiler c)
  55                         {
  56                                 this.prefix = c.Input.Prefix;
  57                                 if (prefix.Length > 0) {
  58                                         string alias =
  59                                                 c.CurrentStylesheet.GetActualPrefix (prefix);
  60                                         if (alias != prefix) {
  61                                                 prefix = alias;
  62                                                 XPathNavigator clone = c.Input.Clone ();
  63                                                 clone.MoveToParent ();
  64                                                 nsUri = clone.GetNamespace (alias);
  65                                         }
  66                                         else
  67                                                 nsUri = c.Input.NamespaceURI;
  68                                 }
  69                                 else
  70                                         nsUri = String.Empty;
  71                                 this.localname = c.Input.LocalName;
  72                                 this.val = new XslAvt (c.Input.Value, c);
  73                         }
  74
  75                         public void Evaluate (XslTransformProcessor p)
  76                         {
  77                                 //FIXME: fix attribute prefixes according to aliases
  78                                 p.Out.WriteAttributeString (prefix, localname, nsUri, val.Evaluate (p));
  79                         }
  80                 }
  81
  82                 protected override void Compile (Compiler c)
  83                 {
  84                         prefix = c.Input.Prefix;
  85                         string alias = c.CurrentStylesheet.GetActualPrefix (prefix);
  86                         if (alias != prefix) {
  87                                 prefix = alias;
  88                                 nsUri = c.Input.GetNamespace (alias);
  89                         }
  90                         else
  91                                 nsUri = c.Input.NamespaceURI;
  92
  93                         this.localname = c.Input.LocalName;
  94                         this.useAttributeSets = c.ParseQNameListAttribute ("use-attribute-sets", XsltNamespace);
  95                         this.nsDecls = c.GetNamespacesToCopy ();
  96                         if (nsDecls.Count == 0) nsDecls = null;
  97                         this.isEmptyElement = c.Input.IsEmptyElement;
  98
  99                         if (c.Input.MoveToFirstAttribute ())
 100                         {
 101                                 attrs = new ArrayList ();
 102                                 do {
 103                                         if (c.Input.NamespaceURI == XsltNamespace)
 104                                                 continue; //already handled
 105                                         attrs.Add (new XslLiteralAttribute (c));
 106                                 } while (c.Input.MoveToNextAttribute());
 107                                 c.Input.MoveToParent ();
 108                         }
 109
 110                         if (!c.Input.MoveToFirstChild ()) return;
 111                         children = c.CompileTemplateContent ();
 112                         c.Input.MoveToParent ();
 113                 }
 114
 115                 public override void Evaluate (XslTransformProcessor p)
 116                 {
 117                         // Since namespace-alias might be determined after compilation
 118                         // of import-ing stylesheets, this must be determined later.
 119                         bool isCData = p.InsideCDataElement;
 120                         p.PushElementState (prefix, localname, nsUri, true);
 121                         p.Out.WriteStartElement (prefix, localname, nsUri);
 122
 123                         if (useAttributeSets != null)
 124                                 foreach (XmlQualifiedName s in useAttributeSets)
 125                                         p.ResolveAttributeSet (s).Evaluate (p);
 126
 127                         if (attrs != null) {
 128                                 int len = attrs.Count;
 129                                 for (int i = 0; i < len; i++)
 130                                         ((XslLiteralAttribute)attrs [i]).Evaluate (p);
 131                         }
 132
 133                         p.OutputLiteralNamespaceUriNodes (nsDecls, null, null);
 134
 135                         if (children != null) children.Evaluate (p);
 136
 137                         if (isEmptyElement)
 138                                 p.Out.WriteEndElement ();
 139                         else
 140                                 p.Out.WriteFullEndElement ();
 141
 142                         p.PopCDataState (isCData);
 143                 }
 144         }
 145 }