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

   1 //
   2 // System.Web.UI.Adapters.PageAdapter
   3 //
   4 // Author:
   5 //      Dick Porter  <dick@ximian.com>
   6 //
   7 // Copyright (C) 2005 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 #if NET_2_0
  30 using System.Web.UI;
  31 using System.Web.UI.WebControls;
  32 using System.Collections;
  33 using System.Collections.Specialized;
  34
  35 namespace System.Web.UI.Adapters
  36 {
  37         public abstract class PageAdapter : ControlAdapter
  38         {
  39                 protected PageAdapter ()
  40                 {
  41                 }
  42
  43                 internal PageAdapter (Page p) : base (p)
  44                 {
  45                 }
  46
  47                 public virtual StringCollection CacheVaryByHeaders {
  48                         get { return null; }
  49                 }
  50
  51                 public virtual StringCollection CacheVaryByParams {
  52                         get { return null; }
  53                 }
  54
  55                 protected string ClientState
  56                 {
  57                         get {
  58                                 return Page.GetSavedViewState ();
  59                         }
  60                 }
  61
  62                 public virtual NameValueCollection DeterminePostBackMode ()
  63                 {
  64                         return Page.DeterminePostBackMode ();
  65                 }
  66
  67                 public virtual ICollection GetRadioButtonsByGroup (string groupName)
  68                 {
  69                         if (radio_button_group == null)
  70                                 return new ArrayList();
  71                         ArrayList radioButtons = (ArrayList) radio_button_group [groupName];
  72                         if (radioButtons == null)
  73                                 return new ArrayList();
  74                         return radioButtons;
  75                 }
  76
  77                 public virtual PageStatePersister GetStatePersister ()
  78                 {
  79                         return new HiddenFieldPageStatePersister ((Page)Control);
  80                 }
  81
  82                 public virtual void RegisterRadioButton (RadioButton radioButton)
  83                 {
  84                         if (radio_button_group == null)
  85                                 radio_button_group = new ListDictionary();
  86                         ArrayList radioButtons = (ArrayList) radio_button_group [radioButton.GroupName];
  87                         if (radioButtons == null)
  88                                 radio_button_group [radioButton.GroupName] = radioButtons = new ArrayList();
  89                         if (!radioButtons.Contains(radioButton))
  90                                 radioButtons.Add(radioButton);
  91                 }
  92
  93                 public virtual void RenderBeginHyperlink (HtmlTextWriter w,
  94                                                           string targetUrl,
  95                                                           bool encodeUrl,
  96                                                           string softKeyLabel)
  97                 {
  98                         InternalRenderBeginHyperlink (w, targetUrl, encodeUrl, softKeyLabel, null);
  99                 }
 100
 101                 public virtual void RenderBeginHyperlink (HtmlTextWriter w,
 102                                                           string targetUrl,
 103                                                           bool encodeUrl,
 104                                                           string softKeyLabel,
 105                                                           string accessKey)
 106                 {
 107                         if (accessKey != null && accessKey.Length > 1)
 108                                 throw new ArgumentOutOfRangeException("accessKey");
 109                         InternalRenderBeginHyperlink (w, targetUrl, encodeUrl, softKeyLabel, accessKey);
 110                 }
 111
 112                 void InternalRenderBeginHyperlink (HtmlTextWriter w,
 113                                                    string targetUrl,
 114                                                    bool encodeUrl,
 115                                                    string softKeyLabel,
 116                                                    string accessKey)
 117                 {
 118                         w.AddAttribute (HtmlTextWriterAttribute.Href, targetUrl, encodeUrl);
 119                         if (accessKey != null)
 120                                 w.AddAttribute (HtmlTextWriterAttribute.Accesskey, accessKey);
 121                         w.RenderBeginTag (HtmlTextWriterTag.A);
 122                 }
 123
 124
 125                 public virtual void RenderEndHyperlink (HtmlTextWriter w)
 126                 {
 127                         w.RenderEndTag();
 128                 }
 129
 130                 public virtual void RenderPostBackEvent (HtmlTextWriter w,
 131                                                          string target,
 132                                                          string argument,
 133                                                          string softKeyLabel,
 134                                                          string text)
 135                 {
 136                         RenderPostBackEvent (w, target, argument, softKeyLabel, text, Page.Request.FilePath, null, true);
 137                 }
 138
 139                 public virtual void RenderPostBackEvent (HtmlTextWriter w,
 140                                                          string target,
 141                                                          string argument,
 142                                                          string softKeyLabel,
 143                                                          string text,
 144                                                          string postUrl,
 145                                                          string accessKey)
 146                 {
 147                         RenderPostBackEvent (w, target, argument, softKeyLabel, text, postUrl, accessKey, true);
 148                 }
 149
 150                 protected void RenderPostBackEvent (HtmlTextWriter w,
 151                                                     string target,
 152                                                     string argument,
 153                                                     string softKeyLabel,
 154                                                     string text,
 155                                                     string postUrl,
 156                                                     string accessKey,
 157                                                     bool encode)
 158                 {
 159                         string url = String.Format ("{0}?__VIEWSTATE={1}&__EVENTTARGET={2}&__EVENTARGUMENT={3}&__PREVIOUSPAGE={4}",
 160                                 postUrl, HttpUtility.UrlEncode (Page.GetSavedViewState ()), target, argument, Page.Request.FilePath);
 161                         RenderBeginHyperlink (w, url, encode, softKeyLabel, accessKey);
 162                         w.Write(text);
 163                         RenderEndHyperlink(w);
 164                 }
 165
 166                 public virtual string TransformText (string text)
 167                 {
 168                         return text;
 169                 }
 170
 171                 protected internal virtual string GetPostBackFormReference (string formID)
 172                 {
 173                         return String.Format("document.forms['{0}']", formID);
 174                 }
 175
 176                 ListDictionary radio_button_group;
 177         }
 178 }
 179 #endif