2006-04-21 Gonzalo Paniagua Javier <gonzalo@ximian.com>
[mono.git] / mcs / class / System.Web / System.Web.UI.HtmlControls / HtmlTextArea.cs
index ccc65227a372c98afe6ea669cc4c1dbfb12740d4..29250a2225397106ee67cfa80c20fd2b7388e119 100644 (file)
-/*     System.Web.UI.HtmlControls
-*      Authors
-*              Leen Toelen (toelen@hotmail.com)
-*/
-
-using System;
-using System.Web;
-using System.Web.UI;
+//
+// System.Web.UI.HtmlControls.HtmlTextArea.cs
+//
+// Author:
+//     Sebastien Pouliot  <sebastien@ximian.com>
+//
+// Copyright (C) 2005 Novell, Inc (http://www.novell.com)
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
 using System.ComponentModel;
-using System.Globalization;
 using System.Collections.Specialized;
+using System.Globalization;
+using System.Security.Permissions;
 
-namespace System.Web.UI.HtmlControls{
-       
-       public class HtmlTextArea : HtmlContainerControl, IPostBackDataHandler{
-               
-               private static readonly object EventServerChange;
-               
-               public HtmlTextArea(): base("textarea"){}
-               
-               public int Cols{
-                       get{
-                               string attr = Attributes["cols"];
-                               if (attr != null){
-                                       return Int32.Parse(attr, CultureInfo.InvariantCulture);
-                               }
-                               return -1;
-                       }
-                       set{
-                               Attributes["cols"] = AttributeToString(value);
-                       }
+namespace System.Web.UI.HtmlControls {
+
+       // CAS
+       [AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
+       [AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
+       // attributes
+       [DefaultEvent ("ServerChange")]
+       [ValidationProperty ("Value")]
+#if NET_2_0
+       [SupportsEventValidation]
+#endif
+       public class HtmlTextArea : HtmlContainerControl, IPostBackDataHandler {
+
+               private static readonly object serverChangeEvent = new object ();
+
+
+               public HtmlTextArea ()
+                       : base ("textarea")
+               {
                }
-               
-               public int Rows{
-                       get{
-                               string attr = Attributes["rows"];
-                               if (attr != null){
-                                       return Int32.Parse(attr, CultureInfo.InvariantCulture);;
-                               }
-                               return -1;
+
+
+               [DefaultValue ("")]
+               [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
+               [WebSysDescription("")]
+               [WebCategory("Appearance")]
+               public int Cols {
+                       get {
+                               string s = Attributes ["cols"];
+                               return (s == null) ? -1 : Convert.ToInt32 (s);
                        }
-                       set{
-                               Attributes["rows"] = AttributeToString(value);
+                       set {
+                               if (value == -1)
+                                       Attributes.Remove ("cols");
+                               else
+                                       Attributes ["cols"] = value.ToString (CultureInfo.InvariantCulture);
                        }
                }
-               
-               public string Value{
-                       get{
-                               return InnerHtml;
+
+               [DefaultValue ("")]
+               [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
+               [WebSysDescription("")]
+               [WebCategory("Behavior")]
+               public virtual string Name {
+                       get { return UniqueID; }
+                       set { ; }
+               }
+
+               [DefaultValue ("")]
+               [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
+               [WebSysDescription("")]
+               [WebCategory("Appearance")]
+               public int Rows {
+                       get {
+                               string s = Attributes ["rows"];
+                               return (s == null) ? -1 : Convert.ToInt32 (s);
                        }
-                       set{
-                               InnerHtml = value;
+                       set {
+                               if (value == -1)
+                                       Attributes.Remove ("rows");
+                               else
+                                       Attributes ["rows"] = value.ToString (CultureInfo.InvariantCulture);
                        }
                }
-                       
-               public virtual string Name{
-                       get{
-                               if (UniqueID != null){
-                                       return UniqueID;
-                               }
-                               return String.Empty;
-                       }
-                       set{}
+
+               [DefaultValue ("")]
+               [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
+               [WebSysDescription("")]
+               [WebCategory("Appearance")]
+               public string Value {
+#if NET_2_0
+                       get { return InnerText; }
+                       set { InnerText = value; }
+#else          
+                       get { return InnerHtml; }
+                       set { InnerHtml = value; }
+#endif         
                }
-               
-               public event EventHandler ServerChange{
-                       add{
-                               Events.AddHandler(EventServerChange, value);
-                       }
-                       remove{
-                               Events.RemoveHandler(EventServerChange, value);
+
+
+               protected override void AddParsedSubObject (object obj)
+               {
+                       if (!((obj is LiteralControl) || (obj is DataBoundLiteralControl))) {
+                               throw new HttpException (Locale.GetText ("Wrong type."));
                        }
+                       base.AddParsedSubObject (obj);
                }
-               
-               protected virtual void OnServerChange(EventArgs e){
-                       EventHandler handler;
-                       handler = (EventHandler) Events[EventServerChange];
-                       if(handler != null){
-                               handler.Invoke(this, e);
+
+#if NET_2_0
+               protected internal
+#else          
+               protected
+#endif         
+               override void OnPreRender (EventArgs e)
+               {
+                       base.OnPreRender (e);
+
+                       if (Page != null) {
+                               Page.RegisterRequiresPostBack (this);
                        }
                }
-               
-               public bool LoadPostData(string postDataKey, NameValueCollection postCollection){
-                       string currentValue = Value;
-                       string postedValue = postCollection[postDataKey];
-                       if (!currentValue.Equals(postedValue) && currentValue != null){
-                               Value = HttpUtility.HtmlEncode(postedValue);
-                               return true;
+
+               protected virtual void OnServerChange (EventArgs e)
+               {
+                       EventHandler serverChange = (EventHandler) Events [serverChangeEvent];
+                       if (serverChange != null)
+                               serverChange (this, e);
+               }
+
+               protected override void RenderAttributes (HtmlTextWriter writer)
+               {
+                       if (Attributes ["name"] == null) {
+                               writer.WriteAttribute ("name", Name);
                        }
-                       return false;
-                       
+                       base.RenderAttributes (writer);
                }
-               
-               protected new void RenderAttributes(HtmlTextWriter writer){
-                       writer.WriteAttribute("name", Name);
-                       Attributes.Remove("name");
-                       base.RenderAttributes(writer);
+
+#if NET_2_0
+               protected virtual bool LoadPostData (string postDataKey, NameValueCollection postCollection)
+               {
+                       return DefaultLoadPostData (postDataKey, postCollection);
                }
-               
-               public void RaisePostDataChangedEvent(){
-                       OnServerChange(EventArgs.Empty);
+
+               protected virtual void RaisePostDataChangedEvent ()
+               {
+                       OnServerChange (EventArgs.Empty);
                }
-               
-               protected override void OnPreRender(EventArgs e){
-                       if(Events[EventServerChange]==null || Disabled){
-                               ViewState.SetItemDirty("value",false);
+#endif
+
+               internal bool DefaultLoadPostData (string postDataKey, NameValueCollection postCollection)
+               {
+                       string s = postCollection [postDataKey];
+                       if ((s != null) && (s != Value)) {
+                               Value = s;
+                               return true;
                        }
+                       return false;
                }
-               
-               protected override void AddParsedSubObject(object obj){
-                       if (obj is LiteralControl || obj is DataBoundLiteralControl)
-                               AddParsedSubObject(obj);
-                       else
-                               throw new NotSupportedException("HtmlTextArea cannot have children of Type " + obj.GetType().Name);
+
+               bool IPostBackDataHandler.LoadPostData (string postDataKey, NameValueCollection postCollection)
+               {
+#if NET_2_0
+                       return LoadPostData (postDataKey, postCollection);
+#else
+                       return DefaultLoadPostData (postDataKey, postCollection);
+#endif
                }
-               
-       } // class HtmlTextArea
-} // namespace System.Web.UI.HtmlControls
 
+               void IPostBackDataHandler.RaisePostDataChangedEvent ()
+               {
+#if NET_2_0
+                       RaisePostDataChangedEvent ();
+#else
+                       OnServerChange (EventArgs.Empty);
+#endif
+               }
+
+
+               [WebSysDescription("")]
+               [WebCategory("Action")]
+               public event EventHandler ServerChange {
+                       add { Events.AddHandler (serverChangeEvent, value); }
+                       remove { Events.RemoveHandler (serverChangeEvent, value); }
+               }
+       }
+}