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 using System.Collections.Generic;
  36 #endif
  37
  38 namespace System.Web.UI {
  39
  40         // CAS
  41         [AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  42         [AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  43         public class TemplateBuilder : ControlBuilder, ITemplate {
  44
  45                 string text;
  46                 TemplateContainerAttribute containerAttribute;
  47 #if NET_2_0
  48                 TemplateInstanceAttribute instanceAttribute;
  49                 List <TemplateBinding> bindings;
  50 #endif
  51
  52                 public TemplateBuilder ()
  53                 {
  54                 }
  55
  56                 internal TemplateBuilder (ICustomAttributeProvider prov)
  57                 {
  58                         object[] ats = prov.GetCustomAttributes (typeof (TemplateContainerAttribute), true);
  59                         if (ats.Length > 0)
  60                                 containerAttribute = (TemplateContainerAttribute) ats [0];
  61
  62 #if NET_2_0
  63                         ats = prov.GetCustomAttributes (typeof (TemplateInstanceAttribute), true);
  64                         if (ats.Length > 0)
  65                                 instanceAttribute = (TemplateInstanceAttribute) ats [0];
  66 #endif
  67                 }
  68
  69                 public virtual string Text {
  70                         get { return text; }
  71                         set { text = value; }
  72                 }
  73
  74                 internal Type ContainerType {
  75                         get { return containerAttribute != null ? containerAttribute.ContainerType : null; }
  76                 }
  77
  78 #if NET_2_0
  79                 internal TemplateInstance? TemplateInstance {
  80                         get { return instanceAttribute != null ? instanceAttribute.Instances : (TemplateInstance?)null; }
  81                 }
  82
  83                 internal BindingDirection BindingDirection {
  84                         get { return containerAttribute != null ? containerAttribute.BindingDirection : BindingDirection.TwoWay; }
  85                 }
  86
  87                 internal void RegisterBoundProperty (Type controlType, string controlProperty, string controlId, string fieldName)
  88                 {
  89                         if (bindings == null)
  90                                 bindings = new List <TemplateBinding> ();
  91                         bindings.Add (new TemplateBinding (controlType, controlProperty, controlId, fieldName));
  92                 }
  93
  94                 internal ICollection Bindings {
  95                         get { return bindings; }
  96                 }
  97
  98                 public override object BuildObject ()
  99                 {
 100                         return base.BuildObject ();
 101                 }
 102 #endif
 103
 104                 public override void Init (TemplateParser parser,
 105                                           ControlBuilder parentBuilder,
 106                                           Type type,
 107                                           string tagName,
 108                                           string ID,
 109                                           IDictionary attribs)
 110                 {
 111                         // enough?
 112                         base.Init (parser, parentBuilder, type, tagName, ID, attribs);
 113                 }
 114
 115                 public virtual void InstantiateIn (Control container)
 116                 {
 117                         CreateChildren (container);
 118                 }
 119
 120                 public override bool NeedsTagInnerText ()
 121                 {
 122                         return false;
 123                 }
 124
 125                 public override void SetTagInnerText (string text)
 126                 {
 127                         this.text = text;
 128                 }
 129         }
 130
 131 #if NET_2_0
 132         internal class TemplateBinding
 133         {
 134                 public Type ControlType;
 135                 public string ControlProperty;
 136                 public string ControlId;
 137                 public string FieldName;
 138
 139                 public TemplateBinding (Type controlType, string controlProperty, string controlId, string fieldName)
 140                 {
 141                         ControlType = controlType;
 142                         ControlProperty = controlProperty;
 143                         ControlId = controlId;
 144                         FieldName = fieldName;
 145                 }
 146         }
 147 #endif
 148 }
 149