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 using System.Drawing;
  37
  38 namespace System.Web.UI.WebControls
  39 {
  40         internal interface IDataControlButton : IButtonControl
  41         {
  42                 Control Container { get; set;}
  43                 string ImageUrl { get;set;}
  44                 bool AllowCallback { get; set;}
  45                 ButtonType ButtonType { get;}
  46         }
  47
  48         internal class DataControlButton : Button, IDataControlButton
  49         {
  50                 public static IDataControlButton CreateButton (ButtonType type, Control container, string text, string image, string command, string commandArg, bool allowCallback)
  51                 {
  52                         IDataControlButton btn;
  53
  54                         switch (type) {
  55                         case ButtonType.Link:
  56                                 btn = new DataControlLinkButton ();
  57                                 break;
  58                         case ButtonType.Image:
  59                                 btn = new DataControlImageButton ();
  60                                 btn.ImageUrl = image;
  61                                 break;
  62                         default:
  63                                 btn = new DataControlButton ();
  64                                 break;
  65                         }
  66
  67                         btn.Container = container;
  68                         btn.CommandName = command;
  69                         btn.CommandArgument = commandArg;
  70                         btn.Text = text;
  71                         btn.CausesValidation = false;
  72                         btn.AllowCallback = allowCallback;
  73
  74                         return btn;
  75                 }
  76
  77                 Control _container;
  78
  79                 public Control Container {
  80                         get { return _container; }
  81                         set { _container = value; }
  82                 }
  83
  84                 public string ImageUrl {
  85                         get { return String.Empty; }
  86                         set { }
  87                 }
  88
  89                 public bool AllowCallback {
  90                         get { return ViewState.GetBool ("AllowCallback", true); }
  91                         set { ViewState ["AllowCallback"] = value; }
  92                 }
  93
  94                 public ButtonType ButtonType {
  95                         get { return ButtonType.Button; }
  96                 }
  97
  98                 public override bool UseSubmitBehavior {
  99                         get { return false; }
 100                         set { throw new NotSupportedException (); }
 101                 }
 102
 103                 internal override string GetClientScriptEventReference ()
 104                 {
 105                         if (AllowCallback) {
 106                                 ICallbackContainer ccner = Container as ICallbackContainer;
 107                                 if (ccner != null)
 108                                         return ccner.GetCallbackScript (this, CommandName + "$" + CommandArgument);
 109                         }
 110                         return base.GetClientScriptEventReference ();
 111                 }
 112
 113                 protected override PostBackOptions GetPostBackOptions ()
 114                 {
 115                         IPostBackContainer pcner = Container as IPostBackContainer;
 116                         if (pcner != null)
 117                                 return pcner.GetPostBackOptions (this);
 118                         return base.GetPostBackOptions ();
 119                 }
 120         }
 121
 122         internal class DataControlLinkButton : LinkButton, IDataControlButton
 123         {
 124                 Control _container;
 125
 126                 public Control Container {
 127                         get { return _container; }
 128                         set { _container = value; }
 129                 }
 130
 131                 public string ImageUrl {
 132                         get { return String.Empty; }
 133                         set { }
 134                 }
 135
 136                 public bool AllowCallback {
 137                         get { return ViewState.GetBool ("AllowCallback", true); }
 138                         set { ViewState ["AllowCallback"] = value; }
 139                 }
 140
 141                 public ButtonType ButtonType {
 142                         get { return ButtonType.Link; }
 143                 }
 144
 145                 protected internal override void Render (HtmlTextWriter writer)
 146                 {
 147                         EnsureForeColor ();
 148                         if (AllowCallback) {
 149                                 ICallbackContainer ccner = Container as ICallbackContainer;
 150                                 if (ccner != null)
 151                                         OnClientClick = ClientScriptManager.EnsureEndsWithSemicolon (OnClientClick) + ccner.GetCallbackScript (this, CommandName + "$" + CommandArgument);
 152                         }
 153
 154                         base.Render (writer);
 155                 }
 156
 157                 void EnsureForeColor ()
 158                 {
 159                         if (ForeColor != Color.Empty)
 160                                 return;
 161
 162                         for (Control parent = Parent; parent != null; parent = parent.Parent) {
 163                                 WebControl wc = parent as WebControl;
 164                                 if (wc != null && wc.ForeColor != Color.Empty) {
 165                                         ForeColor = wc.ForeColor;
 166                                         break;
 167                                 }
 168                                 if (parent == Container)
 169                                         break;
 170                         }
 171                 }
 172
 173                 protected override PostBackOptions GetPostBackOptions ()
 174                 {
 175                         IPostBackContainer pcner = Container as IPostBackContainer;
 176                         if (pcner != null)
 177                                 return pcner.GetPostBackOptions (this);
 178                         return base.GetPostBackOptions ();
 179                 }
 180
 181         }
 182
 183         internal class DataControlImageButton : ImageButton, IDataControlButton
 184         {
 185                 Control _container;
 186
 187                 public Control Container {
 188                         get { return _container; }
 189                         set { _container = value; }
 190                 }
 191
 192                 public bool AllowCallback {
 193                         get { return ViewState.GetBool ("AllowCallback", true); }
 194                         set { ViewState ["AllowCallback"] = value; }
 195                 }
 196
 197                 public ButtonType ButtonType {
 198                         get { return ButtonType.Image; }
 199                 }
 200
 201                 internal override string GetClientScriptEventReference ()
 202                 {
 203                         if (AllowCallback) {
 204                                 ICallbackContainer ccner = Container as ICallbackContainer;
 205                                 if (ccner != null)
 206                                         return ccner.GetCallbackScript (this, CommandName + "$" + CommandArgument);
 207                         }
 208                         return base.GetClientScriptEventReference ();
 209                 }
 210
 211                 protected override PostBackOptions GetPostBackOptions ()
 212                 {
 213                         IPostBackContainer pcner = Container as IPostBackContainer;
 214                         if (pcner != null)
 215                                 return pcner.GetPostBackOptions (this);
 216                         return base.GetPostBackOptions ();
 217                 }
 218
 219         }
 220 }
 221
 222 #endif