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) 2005-2010 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.UI;
  30 using System.Web.UI.WebControls;
  31 using System.Collections;
  32 using System.Collections.Specialized;
  33
  34 namespace System.Web.UI.Adapters
  35 {
  36         public abstract class PageAdapter : ControlAdapter
  37         {
  38                 protected PageAdapter ()
  39                 {
  40                 }
  41
  42                 internal PageAdapter (Page p) : base (p)
  43                 {
  44                 }
  45
  46                 public virtual StringCollection CacheVaryByHeaders {
  47                         get { return null; }
  48                 }
  49
  50                 public virtual StringCollection CacheVaryByParams {
  51                         get { return null; }
  52                 }
  53
  54                 protected string ClientState
  55                 {
  56                         get {
  57                                 return Page.GetSavedViewState ();
  58                         }
  59                 }
  60
  61                 public virtual NameValueCollection DeterminePostBackMode ()
  62                 {
  63                         return Page.DeterminePostBackMode ();
  64                 }
  65
  66                 public virtual ICollection GetRadioButtonsByGroup (string groupName)
  67                 {
  68                         if (radio_button_group == null)
  69                                 return new ArrayList();
  70                         ArrayList radioButtons = (ArrayList) radio_button_group [groupName];
  71                         if (radioButtons == null)
  72                                 return new ArrayList();
  73                         return radioButtons;
  74                 }
  75
  76                 public virtual PageStatePersister GetStatePersister ()
  77                 {
  78                         return new HiddenFieldPageStatePersister ((Page)Control);
  79                 }
  80
  81                 public virtual void RegisterRadioButton (RadioButton radioButton)
  82                 {
  83                         if (radio_button_group == null)
  84                                 radio_button_group = new ListDictionary();
  85                         ArrayList radioButtons = (ArrayList) radio_button_group [radioButton.GroupName];
  86                         if (radioButtons == null)
  87                                 radio_button_group [radioButton.GroupName] = radioButtons = new ArrayList();
  88                         if (!radioButtons.Contains(radioButton))
  89                                 radioButtons.Add(radioButton);
  90                 }
  91
  92                 public virtual void RenderBeginHyperlink (HtmlTextWriter writer,
  93                                                           string targetUrl,
  94                                                           bool encodeUrl,
  95                                                           string softkeyLabel)
  96                 {
  97                         InternalRenderBeginHyperlink (writer, targetUrl, encodeUrl, softkeyLabel, null);
  98                 }
  99
 100                 public virtual void RenderBeginHyperlink (HtmlTextWriter writer,
 101                                                           string targetUrl,
 102                                                           bool encodeUrl,
 103                                                           string softkeyLabel,
 104                                                           string accessKey)
 105                 {
 106                         if (accessKey != null && accessKey.Length > 1)
 107                                 throw new ArgumentOutOfRangeException("accessKey");
 108                         InternalRenderBeginHyperlink (writer, targetUrl, encodeUrl, softkeyLabel, accessKey);
 109                 }
 110
 111                 void InternalRenderBeginHyperlink (HtmlTextWriter w,
 112                                                    string targetUrl,
 113                                                    bool encodeUrl,
 114                                                    string softKeyLabel,
 115                                                    string accessKey)
 116                 {
 117                         w.AddAttribute (HtmlTextWriterAttribute.Href, targetUrl, encodeUrl);
 118                         if (accessKey != null)
 119                                 w.AddAttribute (HtmlTextWriterAttribute.Accesskey, accessKey);
 120                         w.RenderBeginTag (HtmlTextWriterTag.A);
 121                 }
 122
 123
 124                 public virtual void RenderEndHyperlink (HtmlTextWriter writer)
 125                 {
 126                         writer.RenderEndTag();
 127                 }
 128
 129                 public virtual void RenderPostBackEvent (HtmlTextWriter writer,
 130                                                          string target,
 131                                                          string argument,
 132                                                          string softkeyLabel,
 133                                                          string text)
 134                 {
 135                         RenderPostBackEvent (writer, target, argument, softkeyLabel, text, Page.Request.FilePath, null, true);
 136                 }
 137
 138                 public virtual void RenderPostBackEvent (HtmlTextWriter writer,
 139                                                          string target,
 140                                                          string argument,
 141                                                          string softkeyLabel,
 142                                                          string text,
 143                                                          string postUrl,
 144                                                          string accessKey)
 145                 {
 146                         RenderPostBackEvent (writer, target, argument, softkeyLabel, text, postUrl, accessKey, true);
 147                 }
 148
 149                 protected void RenderPostBackEvent (HtmlTextWriter writer,
 150                                                     string target,
 151                                                     string argument,
 152                                                     string softkeyLabel,
 153                                                     string text,
 154                                                     string postUrl,
 155                                                     string accessKey,
 156                                                     bool encode)
 157                 {
 158                         string url = String.Format ("{0}?__VIEWSTATE={1}&__EVENTTARGET={2}&__EVENTARGUMENT={3}&__PREVIOUSPAGE={4}",
 159                                 postUrl, HttpUtility.UrlEncode (Page.GetSavedViewState ()), target, argument, Page.Request.FilePath);
 160                         RenderBeginHyperlink (writer, url, encode, softkeyLabel, accessKey);
 161                         writer.Write(text);
 162                         RenderEndHyperlink(writer);
 163                 }
 164
 165                 public virtual string TransformText (string text)
 166                 {
 167                         return text;
 168                 }
 169
 170                 protected internal virtual string GetPostBackFormReference (string formId)
 171                 {
 172                         return String.Format("document.forms['{0}']", formId);
 173                 }
 174
 175                 ListDictionary radio_button_group;
 176         }
 177 }
 178