mcs/class/System.Xaml/System.Xaml/XamlDirective.cs

   1 //
   2 // Copyright (C) 2010 Novell Inc. http://novell.com
   3 //
   4 // Permission is hereby granted, free of charge, to any person obtaining
   5 // a copy of this software and associated documentation files (the
   6 // "Software"), to deal in the Software without restriction, including
   7 // without limitation the rights to use, copy, modify, merge, publish,
   8 // distribute, sublicense, and/or sell copies of the Software, and to
   9 // permit persons to whom the Software is furnished to do so, subject to
  10 // the following conditions:
  11 //
  12 // The above copyright notice and this permission notice shall be
  13 // included in all copies or substantial portions of the Software.
  14 //
  15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  19 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  20 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  21 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  22 //
  23 using System;
  24 using System.Collections.Generic;
  25 using System.ComponentModel;
  26 using System.Linq;
  27 using System.Reflection;
  28 using System.Xaml.Schema;
  29
  30 namespace System.Xaml
  31 {
  32         public class XamlDirective : XamlMember
  33         {
  34                 class DirectiveMemberInvoker : XamlMemberInvoker
  35                 {
  36                         XamlDirective directive;
  37
  38                         public DirectiveMemberInvoker (XamlDirective directive)
  39                                 : base (directive)
  40                         {
  41                         }
  42                 }
  43
  44                 public XamlDirective (string xamlNamespace, string name)
  45                         : this (new string [] {xamlNamespace}, name, new XamlType (typeof (object), new XamlSchemaContext (new XamlSchemaContextSettings ())), null, AllowedMemberLocations.Any)
  46                 {
  47                         if (xamlNamespace == null)
  48                                 throw new ArgumentNullException ("xamlNamespace");
  49                         is_unknown = true;
  50                 }
  51
  52                 public XamlDirective (IEnumerable<string> xamlNamespaces, string name, XamlType xamlType, XamlValueConverter<TypeConverter> typeConverter, AllowedMemberLocations allowedLocation)
  53                         : base (true, xamlNamespaces != null ? xamlNamespaces.FirstOrDefault () : null, name)
  54                 {
  55                         if (xamlNamespaces == null)
  56                                 throw new ArgumentNullException ("xamlNamespaces");
  57                         if (xamlType == null)
  58                                 throw new ArgumentNullException ("xamlType");
  59
  60                         type = xamlType;
  61                         xaml_namespaces = new List<string> (xamlNamespaces);
  62                         AllowedLocation = allowedLocation;
  63                         type_converter = typeConverter;
  64
  65                         invoker = new DirectiveMemberInvoker (this);
  66                 }
  67
  68                 public AllowedMemberLocations AllowedLocation { get; private set; }
  69                 XamlValueConverter<TypeConverter> type_converter;
  70                 XamlType type;
  71                 XamlMemberInvoker invoker;
  72                 bool is_unknown;
  73                 IList<string> xaml_namespaces;
  74
  75                 // this is for XamlLanguage.UnknownContent
  76                 internal bool InternalIsUnknown {
  77                         set { is_unknown = value; }
  78                 }
  79
  80                 public override int GetHashCode ()
  81                 {
  82                         return ToString ().GetHashCode ();
  83                 }
  84
  85                 public override IList<string> GetXamlNamespaces ()
  86                 {
  87                         return xaml_namespaces;
  88                 }
  89
  90                 protected override sealed ICustomAttributeProvider LookupCustomAttributeProvider ()
  91                 {
  92                         return null; // as documented.
  93                 }
  94
  95                 protected override sealed XamlValueConverter<XamlDeferringLoader> LookupDeferringLoader ()
  96                 {
  97                         return null; // as documented.
  98                 }
  99
 100                 protected override sealed IList<XamlMember> LookupDependsOn ()
 101                 {
 102                         return null; // as documented.
 103                 }
 104
 105                 protected override sealed XamlMemberInvoker LookupInvoker ()
 106                 {
 107                         return invoker;
 108                 }
 109
 110                 protected override sealed bool LookupIsAmbient ()
 111                 {
 112                         return false;
 113                 }
 114
 115                 protected override sealed bool LookupIsEvent ()
 116                 {
 117                         return false;
 118                 }
 119
 120                 protected override sealed bool LookupIsReadOnly ()
 121                 {
 122                         return false;
 123                 }
 124
 125                 protected override sealed bool LookupIsReadPublic ()
 126                 {
 127                         return true;
 128                 }
 129
 130                 protected override sealed bool LookupIsUnknown ()
 131                 {
 132                         return is_unknown;
 133                 }
 134
 135                 protected override sealed bool LookupIsWriteOnly ()
 136                 {
 137                         return false;
 138                 }
 139
 140                 protected override sealed bool LookupIsWritePublic ()
 141                 {
 142                         return true;
 143                 }
 144
 145                 protected override sealed XamlType LookupTargetType ()
 146                 {
 147                         return null;
 148                 }
 149
 150                 protected override sealed XamlType LookupType ()
 151                 {
 152                         return type;
 153                 }
 154
 155                 protected override sealed XamlValueConverter<TypeConverter> LookupTypeConverter ()
 156                 {
 157                         if (type_converter == null)
 158                                 type_converter = base.LookupTypeConverter ();
 159                         return type_converter;
 160                 }
 161
 162                 protected override sealed MethodInfo LookupUnderlyingGetter ()
 163                 {
 164                         return null;
 165                 }
 166
 167                 protected override sealed MemberInfo LookupUnderlyingMember ()
 168                 {
 169                         return null;
 170                 }
 171
 172                 protected override sealed MethodInfo LookupUnderlyingSetter ()
 173                 {
 174                         return null;
 175                 }
 176
 177                 public override string ToString ()
 178                 {
 179                         return String.IsNullOrEmpty (PreferredXamlNamespace) ? Name : String.Concat ("{", PreferredXamlNamespace, "}", Name);
 180                 }
 181         }
 182 }