mcs/class/System.Web/System.Web.UI.WebControls/DataControlButton.cs

   1 //
   2 // System.Web.UI.WebControls.DataControlButton.cs
   3 //
   4 // Authors:
   5 //      Lluis Sanchez Gual (lluis@novell.com)
   6 //
   7 // (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
  31 using System;
  32 using System.Web;
  33 using System.Web.UI;
  34 using System.ComponentModel;
  35 using System.ComponentModel.Design;
  36
  37 namespace System.Web.UI.WebControls
  38 {
  39         internal class DataControlButton: Button
  40         {
  41                 Control container;
  42
  43                 public DataControlButton (Control container)
  44                 {
  45                         this.container = container;
  46                 }
  47
  48                 public DataControlButton (Control container, string text, string image, string command, string commandArg, bool allowCallback)
  49                 {
  50                         this.container = container;
  51                         Text = text;
  52                         ImageUrl = image;
  53                         CommandName = command;
  54                         CommandArgument = commandArg;
  55                         AllowCallback = allowCallback;
  56                 }
  57
  58                 public string ImageUrl {
  59                         get {
  60                                 object o = ViewState["iu"];
  61                                 if (o != null) return (string) o;
  62                                 return String.Empty;
  63                         }
  64                         set {
  65                                 ViewState["iu"] = value;
  66                         }
  67                 }
  68
  69                 public bool AllowCallback {
  70                         get {
  71                                 object o = ViewState["ac"];
  72                                 if (o != null) return (bool) o;
  73                                 return true;
  74                         }
  75                         set {
  76                                 ViewState["ac"] = value;
  77                         }
  78                 }
  79
  80                 public virtual ButtonType ButtonType {
  81                         get {
  82                                 object ob = ViewState ["ButtonType"];
  83                                 if (ob != null) return (ButtonType) ob;
  84                                 return ButtonType.Link;
  85                         }
  86                         set {
  87                                 ViewState ["ButtonType"] = value;
  88                         }
  89                 }
  90
  91                 protected internal override void Render (HtmlTextWriter writer)
  92                 {
  93                         if (CommandName.Length > 0 || ButtonType == ButtonType.Button)
  94                         {
  95                                 string postScript = null;
  96                                 string callScript = null;
  97
  98                                 IPostBackContainer pcner = container as IPostBackContainer;
  99                                 if (pcner != null) {
 100                                         PostBackOptions ops = pcner.GetPostBackOptions (this);
 101                                         postScript = container.Page.ClientScript.GetPostBackEventReference (ops);
 102                                 } else
 103                                         postScript = Page.ClientScript.GetPostBackEventReference (this, "");
 104
 105                                 if (CausesValidation && Page.Validators.Count > 0) {
 106                                         // TOSHOK: review if this is the correct usage of the "fresh" client side stuff
 107                                         ClientScriptManager csm = new ClientScriptManager (Page);
 108                                         postScript = csm.GetClientValidationEvent () + postScript;
 109                                 }
 110
 111                                 if (AllowCallback) {
 112                                         ICallbackContainer ccner = container as ICallbackContainer;
 113                                         if (ccner != null)
 114                                                 callScript = ccner.GetCallbackScript (this, CommandName + "$" + CommandArgument);
 115                                 }
 116
 117                                 ControlStyle.AddAttributesToRender (writer);
 118
 119                                 if (ButtonType == ButtonType.Image) {
 120                                         writer.AddAttribute (HtmlTextWriterAttribute.Type, "image");
 121                                         writer.AddAttribute (HtmlTextWriterAttribute.Src, ResolveClientUrl (ImageUrl));
 122                                         if (callScript != null)
 123                                                 writer.AddAttribute (HtmlTextWriterAttribute.Onclick, callScript);
 124                                         else
 125                                                 writer.AddAttribute (HtmlTextWriterAttribute.Onclick, postScript);
 126                                         if (Text.Length > 0)
 127                                                 writer.AddAttribute (HtmlTextWriterAttribute.Alt, Text);
 128                                         writer.AddStyleAttribute (HtmlTextWriterStyle.BorderWidth, "0px");
 129                                         writer.RenderBeginTag (HtmlTextWriterTag.Input);
 130                                         writer.RenderEndTag ();
 131                                 }
 132                                 if (ButtonType == ButtonType.Link) {
 133                                         if (callScript != null) {
 134                                                 writer.AddAttribute (HtmlTextWriterAttribute.Onclick, callScript);
 135                                                 writer.AddAttribute (HtmlTextWriterAttribute.Href, "javascript:");
 136                                         }
 137                                         else
 138                                                 writer.AddAttribute (HtmlTextWriterAttribute.Href, "javascript:" + postScript);
 139                                         writer.RenderBeginTag (HtmlTextWriterTag.A);
 140                                         writer.Write (Text);
 141                                         writer.RenderEndTag ();
 142                                 }
 143                                 if (ButtonType == ButtonType.Button) {
 144                                         if (callScript != null)
 145                                                 writer.AddAttribute (HtmlTextWriterAttribute.Onclick, callScript);
 146                                         else
 147                                                 writer.AddAttribute (HtmlTextWriterAttribute.Onclick, postScript);
 148
 149                                         writer.AddAttribute (HtmlTextWriterAttribute.Type, "submit");
 150                                         writer.AddAttribute (HtmlTextWriterAttribute.Name, ClientID);
 151                                         writer.AddAttribute (HtmlTextWriterAttribute.Value, Text);
 152                                         writer.RenderBeginTag (HtmlTextWriterTag.Input);
 153                                         writer.RenderEndTag ();
 154                                 }
 155                         }
 156                         else {
 157                                 if (ImageUrl.Length > 0) {
 158                                         ControlStyle.AddAttributesToRender (writer);
 159                                         writer.AddAttribute (HtmlTextWriterAttribute.Src, ResolveClientUrl (ImageUrl));
 160                                         if (Text.Length > 0)
 161                                                 writer.AddAttribute (HtmlTextWriterAttribute.Alt, Text);
 162                                         writer.AddStyleAttribute (HtmlTextWriterStyle.BorderWidth, "0px");
 163                                         writer.RenderBeginTag (HtmlTextWriterTag.Img);
 164                                         writer.RenderEndTag ();
 165                                 }
 166                                 else {
 167                                         if (!ControlStyle.IsEmpty) {
 168                                                 ControlStyle.AddAttributesToRender (writer);
 169                                         }
 170                                         writer.RenderBeginTag (HtmlTextWriterTag.Span);
 171                                         writer.Write (Text);
 172                                         writer.RenderEndTag ();
 173                                 }
 174                         }
 175                 }
 176         }
 177 }
 178
 179 #endif