mcs/class/Microsoft.Build/Microsoft.Build.Construction/ProjectExtensionsElement.cs

   1 //
   2 // ProjectExtensionsElement.cs
   3 //
   4 // Author:
   5 //   Leszek Ciesielski (skolima@gmail.com)
   6 //
   7 // (C) 2011 Leszek Ciesielski
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 using System;
  30 using System.Xml;
  31 using System.Text;
  32
  33 namespace Microsoft.Build.Construction
  34 {
  35         public class ProjectExtensionsElement : ProjectElement
  36         {
  37                 internal ProjectExtensionsElement (ProjectRootElement containingProject)
  38                 {
  39                         ContainingProject = containingProject;
  40                 }
  41                 public override string Condition {
  42                         get { return null; }
  43                         set {
  44                                 throw new InvalidOperationException ("Can not set Condition.");
  45                         }
  46                 }
  47                 public string Content {
  48                         get { return element.InnerXml; }
  49                         set { element.InnerXml = value; }
  50                 }
  51                 public string this[string name] {
  52                         get {
  53                                 var child = element[name];
  54                                 return child == null ? string.Empty : child.InnerXml;
  55                         }
  56                         set {
  57                                 var child = element[name];
  58                                 if (child == null) {
  59                                         if (string.IsNullOrEmpty (name))
  60                                                 return;
  61                                         child = document.CreateElement (name);
  62                                         element.AppendChild (child);
  63                                 }
  64                                 if (string.IsNullOrEmpty (value))
  65                                         element.RemoveChild (child);
  66                                 else
  67                                         child.InnerXml = value;
  68                         }
  69                 }
  70                 internal override void Load (XmlReader reader)
  71                 {
  72                         while (reader.Read () && reader.NodeType != XmlNodeType.Element)
  73                                 ;
  74                         FillLocation (reader);
  75                         using (XmlReader subReader = reader.ReadSubtree ()) {
  76                                 document = new XmlDocument ();
  77                                 document.Load (subReader);
  78                                 element = document.DocumentElement;
  79                         }
  80                 }
  81                 internal override void SaveValue (XmlWriter writer)
  82                 {
  83                         element.WriteContentTo (writer);
  84                 }
  85                 internal override string XmlName {
  86                         get { return "ProjectExtensions"; }
  87                 }
  88                 XmlDocument document;
  89                 XmlElement element;
  90         }
  91 }