class/System.Design/System.ComponentModel.Design.Serialization/CodeDomSerializationProvider.cs

   1 //
   2 // System.ComponentModel.Design.Serialization.CodeDomSerializationProvider
   3 //
   4 // Authors:
   5 //        Ivan N. Zlatev (contact i-nZ.net)
   6 //
   7 // (C) 2007 Ivan N. Zlatev
   8
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29
  30 #if NET_2_0
  31
  32 using System;
  33 using System.Collections;
  34 using System.ComponentModel;
  35 using System.ComponentModel.Design;
  36
  37 using System.CodeDom;
  38
  39 namespace System.ComponentModel.Design.Serialization
  40 {
  41         // Added as a provider by the RootCodeDomSerializationProvider
  42         //
  43         internal class CodeDomSerializationProvider : IDesignerSerializationProvider
  44         {
  45
  46                 private static CodeDomSerializationProvider _instance = null;
  47
  48                 public static CodeDomSerializationProvider Instance {
  49                         get {
  50                                 if (_instance == null)
  51                                         _instance = new CodeDomSerializationProvider ();
  52                                 return _instance;
  53                         }
  54                 }
  55
  56                 public CodeDomSerializationProvider ()
  57                 {
  58                         _componentSerializer = new ComponentCodeDomSerializer ();
  59                         _propertySerializer = new PropertyCodeDomSerializer ();
  60                         _eventSerializer = new EventCodeDomSerializer ();
  61                         _collectionSerializer = new CollectionCodeDomSerializer ();
  62                         _primitiveSerializer = new PrimitiveCodeDomSerializer ();
  63                         _rootSerializer = new RootCodeDomSerializer ();
  64                         _enumSerializer = new EnumCodeDomSerializer ();
  65                         _othersSerializer = new CodeDomSerializer ();
  66                 }
  67
  68                 private CodeDomSerializerBase _componentSerializer;
  69                 private CodeDomSerializerBase _propertySerializer;
  70                 private CodeDomSerializerBase _eventSerializer;
  71                 private CodeDomSerializerBase _primitiveSerializer;
  72                 private CodeDomSerializerBase _collectionSerializer;
  73                 private CodeDomSerializerBase _rootSerializer;
  74                 private CodeDomSerializerBase _enumSerializer;
  75                 private CodeDomSerializerBase _othersSerializer;
  76
  77                 public object GetSerializer (IDesignerSerializationManager manager, object currentSerializer,
  78                                                                          Type objectType, Type serializerType)
  79                 {
  80                         CodeDomSerializerBase serializer = null;
  81
  82                         if (serializerType == typeof(CodeDomSerializer)) { // CodeDomSerializer
  83                                 if (objectType == null) // means that value to serialize is null CodePrimitiveExpression (null)
  84                                         serializer = _primitiveSerializer;
  85                                 else if (typeof(IComponent).IsAssignableFrom (objectType))
  86                                         serializer = _componentSerializer;
  87                                 else if (objectType.IsEnum || typeof (Enum).IsAssignableFrom (objectType))
  88                                         serializer = _enumSerializer;
  89                                 else if (objectType.IsPrimitive || objectType == typeof (String))
  90                                         serializer = _primitiveSerializer;
  91                                 else if (typeof(ICollection).IsAssignableFrom (objectType))
  92                                         serializer = _collectionSerializer;
  93                                 else
  94                                         serializer = _othersSerializer;
  95                         } else if (serializerType == typeof(MemberCodeDomSerializer)) { // MemberCodeDomSerializer
  96                                 if (typeof (PropertyDescriptor).IsAssignableFrom (objectType))
  97                                         serializer = _propertySerializer;
  98                                 else if (typeof (EventDescriptor).IsAssignableFrom (objectType))
  99                                         serializer = _eventSerializer;
 100                         } else if (serializerType == typeof (RootCodeDomSerializer)) {
 101                                 serializer = _rootSerializer;
 102                         }
 103
 104                         return serializer;
 105                 }
 106         }
 107 }
 108 #endif