mcs/class/System.Web.Mobile/System.Web.UI.MobileControls/DeviceSpecificChoice.cs

   1
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  12 // included in all copies or substantial portions of the Software.
  13 //
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  22 /**
  23  * Project   : Mono
  24  * Namespace : System.Web.UI.MobileControls
  25  * Class     : DeviceSpecificChoice
  26  * Author    : Gaurav Vaish
  27  *
  28  * Copyright : 2003 with Gaurav Vaish, and with
  29  *             Ximian Inc
  30  */
  31
  32 using System.ComponentModel;
  33 using System.Collections;
  34 using System.Collections.Specialized;
  35 using System.Reflection;
  36 using System.Web.UI;
  37 using System.Web.Mobile;
  38
  39 namespace System.Web.UI.MobileControls
  40 {
  41         public class DeviceSpecificChoice : IParserAccessor,
  42                                             IAttributeAccessor
  43         {
  44                 private string argument;
  45                 private IDictionary contents;
  46                 private string filter;
  47                 private DeviceSpecific owner;
  48                 private IDictionary templates;
  49                 private string xmlns;
  50
  51                 private static IComparer caseInsensitiveComparer
  52                                       = new CaseInsensitiveComparer();
  53
  54                 public DeviceSpecificChoice()
  55                 {
  56                 }
  57
  58                 string IAttributeAccessor.GetAttribute(string key)
  59                 {
  60                         object val = Contents[key];
  61                         if(val != null && val is string)
  62                                 return (string)val;
  63                         //FIXME
  64                         throw new ArgumentException("DeviceSpecificChoice" +
  65                                                     "_PropetyNotAnAttribute");
  66                 }
  67
  68                 void IAttributeAccessor.SetAttribute(string key, string value)
  69                 {
  70                         Contents[key] = value;
  71                 }
  72
  73                 void IParserAccessor.AddParsedSubObject(object obj)
  74                 {
  75                         if(obj is DeviceSpecificChoiceTemplateContainer)
  76                         {
  77                                 DeviceSpecificChoiceTemplateContainer ctr =
  78                                     (DeviceSpecificChoiceTemplateContainer)obj;
  79                                 Templates[ctr.Name] = ctr.Template;
  80                         }
  81                 }
  82
  83                 public string Argument
  84                 {
  85                         get
  86                         {
  87                                 return this.argument;
  88                         }
  89                         set
  90                         {
  91                                 this.argument = value;
  92                         }
  93                 }
  94
  95                 public IDictionary Contents
  96                 {
  97                         get
  98                         {
  99                                 if(this.contents == null)
 100                                 {
 101                                         this.contents = new ListDictionary(caseInsensitiveComparer);
 102                                 }
 103                                 return this.contents;
 104                         }
 105                 }
 106
 107                 public string Filter
 108                 {
 109                         get
 110                         {
 111                                 return this.filter;
 112                         }
 113                         set
 114                         {
 115                                 this.filter = value;
 116                         }
 117                 }
 118
 119                 public DeviceSpecific Owner
 120                 {
 121                         get
 122                         {
 123                                 return this.owner;
 124                         }
 125                         set
 126                         {
 127                                 this.owner = value;
 128                         }
 129                 }
 130
 131                 public IDictionary Templates
 132                 {
 133                         get
 134                         {
 135                                 if(this.templates == null)
 136                                 {
 137                                         this.templates = new ListDictionary(caseInsensitiveComparer);
 138                                 }
 139                                 return this.templates;
 140                         }
 141                 }
 142
 143                 internal void ApplyProperties()
 144                 {
 145                         IDictionaryEnumerator ide = Contents.GetEnumerator();
 146                         while(ide.MoveNext())
 147                         {
 148                                 object owner = Owner.Owner;
 149                                 string key = (string)ide.Key;
 150                                 string value = (string)ide.Value;
 151                                 if(key.ToLower() == "id")
 152                                 {
 153                                         //FIXME
 154                                         throw new ArgumentException("DeviceSpecificChoice" +
 155                                                                     "_InvalidPropertyOverride");
 156                                 }
 157                                 if(value != null)
 158                                 {
 159                                         int dash = 0;
 160                                         while((dash = key.IndexOf('-')) != -1)
 161                                         {
 162                                                 string first = key.Substring(0, dash);
 163                                                 PropertyDescriptor pd =
 164                                                              TypeDescriptor.GetProperties(owner).Find(key, true);
 165                                                 if(pd == null)
 166                                                 {
 167                                                         //FIXME
 168                                                         throw new ArgumentException("DeviceSpecificChoice" +
 169                                                                                     "_OverridingPropertyNotFound");
 170                                                 }
 171                                                 owner = pd.GetValue(owner);
 172                                                 key = key.Substring(dash + 1);
 173                                         }
 174                                         if(!FindAndApplyProperty(owner, key, value) &&
 175                                            !FindAndApplyEvent(owner, key, value))
 176                                         {
 177                                                 if(owner is IAttributeAccessor)
 178                                                 {
 179                                                         ((IAttributeAccessor)owner).SetAttribute(key, value);
 180                                                 } else
 181                                                 {
 182                                                         //FIXME
 183                                                         throw new ArgumentException("DeviceSpecificChoice" +
 184                                                                                     "_OverridingPropertyNotFound");
 185                                                 }
 186                                         }
 187                                 }
 188                         }
 189                 }
 190
 191                 /// <summary>
 192                 /// Returns false if not found or not applied
 193                 /// </summary>
 194                 private bool FindAndApplyProperty(object parentObj, string key,
 195                                                   string value)
 196                 {
 197                         bool retVal = false;
 198                         PropertyDescriptor pd =
 199                             TypeDescriptor.GetProperties(parentObj).Find(key, true);
 200                         if(pd != null)
 201                         {
 202                                 if(pd.Attributes.Contains(
 203                                    DesignerSerializationVisibilityAttribute.Hidden))
 204                                 {
 205                                         throw new ArgumentException("DeviceSpecificChoice" +
 206                                                          "_OverridingPropertyNotDeclarable");
 207                                 }
 208                                 throw new NotImplementedException();
 209                         }
 210                         return retVal;
 211                 }
 212
 213                 private bool FindAndApplyEvent(object parentObj, string key,
 214                                                string value)
 215                 {
 216                         bool retVal = false;
 217                         if(key.Length > 0)
 218                         {
 219                                 if(key.ToLower().StartsWith("on"))
 220                                 {
 221                                         string eventName = key.Substring(2);
 222                                         EventDescriptor ed =
 223                                               TypeDescriptor.GetEvents(parentObj).Find(key, true);
 224                                         if(ed != null)
 225                                         {
 226                                                 ed.AddEventHandler(parentObj,
 227                                                   Delegate.CreateDelegate(ed.EventType,
 228                                                           Owner.MobilePage, eventName));
 229                                         }
 230                                 }
 231                         }
 232                         return retVal;
 233                 }
 234
 235                 private bool CheckOnPageEvaluator(MobileCapabilities capabilities,
 236                                                   out bool evaluatorResult)
 237                 {
 238                         bool retVal = false;
 239                         evaluatorResult = false;
 240                         TemplateControl tc = Owner.ClosestTemplateControl;
 241                         // I have to get the method (MethodInfo?) and then invoke
 242                         // the method and send back the results of the method!
 243                         throw new NotImplementedException();
 244                 }
 245
 246                 public bool HasTemplates
 247                 {
 248                         get
 249                         {
 250                                 return (templates != null && templates.Count > 0);
 251                         }
 252                 }
 253         }
 254 }