mcs/class/System.Web/System.Web.UI.Adapters/ControlAdapter.cs

   1 //
   2 // System.Web.UI.Adapters.ControlAdapter
   3 //
   4 // Author:
   5 //      Dick Porter  <dick@ximian.com>
   6 //
   7 // Copyright (C) 2005-2010 Novell, Inc (http://www.novell.com)
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 using System.Web;
  30 using System.Web.UI;
  31 using System.ComponentModel;
  32
  33 namespace System.Web.UI.Adapters
  34 {
  35         public abstract class ControlAdapter
  36         {
  37                 internal ControlAdapter (Control c)
  38                 {
  39                         control = c;
  40                 }
  41
  42                 protected ControlAdapter ()
  43                 {
  44                 }
  45
  46                 protected HttpBrowserCapabilities Browser
  47                 {
  48                         get {
  49                                 Page page = Page;
  50
  51                                 if (page != null)
  52                                         return page.Request.Browser;
  53
  54                                 return null;
  55                         }
  56                 }
  57
  58                 internal Control control;
  59
  60                 [Browsable (false)]
  61                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
  62                 protected Control Control
  63                 {
  64                         get { return control; }
  65                 }
  66
  67                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
  68                 [Browsable (false)]
  69                 protected Page Page
  70                 {
  71                         get {
  72                                 Control control = Control;
  73
  74                                 if (control != null)
  75                                         return control.Page;
  76
  77                                 return null;
  78                         }
  79                 }
  80
  81                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
  82                 [Browsable (false)]
  83                 protected PageAdapter PageAdapter
  84                 {
  85                         get {
  86                                 Page page = Page;
  87
  88                                 if (page != null)
  89                                         return page.PageAdapter;
  90
  91                                 return null;
  92                         }
  93                 }
  94
  95                 protected internal virtual void BeginRender (HtmlTextWriter writer)
  96                 {
  97                         writer.BeginRender();
  98                 }
  99
 100                 protected internal virtual void CreateChildControls ()
 101                 {
 102                         Control control = Control;
 103                         if (control != null)
 104                                 control.CreateChildControls ();
 105                 }
 106
 107                 protected internal virtual void EndRender (HtmlTextWriter writer)
 108                 {
 109                         writer.EndRender ();
 110                 }
 111
 112                 protected internal virtual void LoadAdapterControlState (object state)
 113                 {
 114                 }
 115
 116                 protected internal virtual void LoadAdapterViewState (object state)
 117                 {
 118                 }
 119
 120                 protected internal virtual void OnInit (EventArgs e)
 121                 {
 122                         Control control = Control;
 123
 124                         if (control != null)
 125                                 control.OnInit(e);
 126                 }
 127
 128                 protected internal virtual void OnLoad (EventArgs e)
 129                 {
 130                         Control control = Control;
 131
 132                         if (control != null)
 133                                 control.OnLoad(e);
 134                 }
 135
 136                 protected internal virtual void OnPreRender (EventArgs e)
 137                 {
 138                         Control control = Control;
 139
 140                         if (control != null)
 141                                 control.OnPreRender(e);
 142                 }
 143
 144                 protected internal virtual void OnUnload (EventArgs e)
 145                 {
 146                         Control control = Control;
 147
 148                         if (control != null)
 149                                 control.OnUnload(e);
 150                 }
 151
 152                 protected internal virtual void Render (HtmlTextWriter writer)
 153                 {
 154                         Control control = Control;
 155
 156                         if (control != null)
 157                                 control.Render (writer);
 158                 }
 159
 160                 protected internal virtual void RenderChildren (HtmlTextWriter writer)
 161                 {
 162                         Control control = Control;
 163
 164                         if (control != null)
 165                                 control.RenderChildren (writer);
 166                 }
 167
 168                 protected internal virtual object SaveAdapterControlState ()
 169                 {
 170                         return null;
 171                 }
 172
 173                 protected internal virtual object SaveAdapterViewState ()
 174                 {
 175                         return null;
 176                 }
 177         }
 178 }
 179