mcs/class/System.Web/System.Web.UI/TemplateBuilder.cs

   1 //
   2 // System.Web.UI.TemplateBuilder
   3 //
   4 // Authors:
   5 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   6 //
   7 // (C) 2003 Ximian, Inc. (http://www.ximian.com)
   8 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
   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 using System.Collections;
  31 using System.Reflection;
  32 using System.Security.Permissions;
  33 #if NET_2_0
  34 using System.ComponentModel;
  35 #endif
  36
  37 namespace System.Web.UI {
  38
  39         // CAS
  40         [AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  41         [AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  42         public class TemplateBuilder : ControlBuilder, ITemplate {
  43
  44                 string text;
  45                 TemplateContainerAttribute containerAttribute;
  46 #if NET_2_0
  47                 TemplateInstanceAttribute instanceAttribute;
  48                 ArrayList bindings;
  49 #endif
  50
  51                 public TemplateBuilder ()
  52                 {
  53                 }
  54
  55                 internal TemplateBuilder (ICustomAttributeProvider prov)
  56                 {
  57                         object[] ats = prov.GetCustomAttributes (typeof (TemplateContainerAttribute), true);
  58                         if (ats.Length > 0)
  59                                 containerAttribute = (TemplateContainerAttribute) ats [0];
  60
  61 #if NET_2_0
  62                         ats = prov.GetCustomAttributes (typeof (TemplateInstanceAttribute), true);
  63                         if (ats.Length > 0)
  64                                 instanceAttribute = (TemplateInstanceAttribute) ats [0];
  65 #endif
  66                 }
  67
  68                 public virtual string Text {
  69                         get { return text; }
  70                         set { text = value; }
  71                 }
  72
  73                 internal Type ContainerType {
  74                         get { return containerAttribute != null ? containerAttribute.ContainerType : null; }
  75                 }
  76
  77 #if NET_2_0
  78                 internal TemplateInstance? TemplateInstance {
  79                         get { return instanceAttribute != null ? instanceAttribute.Instances : (TemplateInstance?)null; }
  80                 }
  81
  82                 internal BindingDirection BindingDirection {
  83                         get { return containerAttribute != null ? containerAttribute.BindingDirection : BindingDirection.TwoWay; }
  84                 }
  85
  86                 internal void RegisterBoundProperty (Type controlType, string controlProperty, string controlId, string fieldName)
  87                 {
  88                         if (bindings == null) bindings = new ArrayList ();
  89                         bindings.Add (new TemplateBinding (controlType, controlProperty, controlId, fieldName));
  90                 }
  91
  92                 internal ICollection Bindings {
  93                         get { return bindings; }
  94                 }
  95
  96                 public override object BuildObject ()
  97                 {
  98                         return base.BuildObject ();
  99                 }
 100 #endif
 101
 102                 public override void Init (TemplateParser parser,
 103                                           ControlBuilder parentBuilder,
 104                                           Type type,
 105                                           string tagName,
 106                                           string ID,
 107                                           IDictionary attribs)
 108                 {
 109                         // enough?
 110                         base.Init (parser, parentBuilder, type, tagName, ID, attribs);
 111                 }
 112
 113                 public virtual void InstantiateIn (Control container)
 114                 {
 115                         CreateChildren (container);
 116                 }
 117
 118                 public override bool NeedsTagInnerText ()
 119                 {
 120                         return false;
 121                 }
 122
 123                 public override void SetTagInnerText (string text)
 124                 {
 125                         this.text = text;
 126                 }
 127         }
 128
 129 #if NET_2_0
 130         internal class TemplateBinding
 131         {
 132                 public Type ControlType;
 133                 public string ControlProperty;
 134                 public string ControlId;
 135                 public string FieldName;
 136
 137                 public TemplateBinding (Type controlType, string controlProperty, string controlId, string fieldName)
 138                 {
 139                         ControlType = controlType;
 140                         ControlProperty = controlProperty;
 141                         ControlId = controlId;
 142                         FieldName = fieldName;
 143                 }
 144         }
 145 #endif
 146 }
 147