Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web.Mobile/UI/MobileControls/Adapters/WmlTextBoxAdapter.cs

@@ -0,0 +1,146 @@
+//------------------------------------------------------------------------------
+// <copyright file="WmlTextBoxAdapter.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+//------------------------------------------------------------------------------
+
+using System;
+using System.Globalization;
+using System.IO;
+using System.Web;
+using System.Web.UI;
+using System.Web.UI.MobileControls;
+using System.Security.Permissions;
+
+#if COMPILING_FOR_SHIPPED_SOURCE
+namespace System.Web.UI.MobileControls.ShippedAdapterSource
+#else
+namespace System.Web.UI.MobileControls.Adapters
+#endif    
+
+{
+
+    /*
+     * WmlTextBoxAdapter class.
+     *
+     * Copyright (c) 2000 Microsoft Corporation
+     */
+    /// <include file='doc\WmlTextBoxAdapter.uex' path='docs/doc[@for="WmlTextBoxAdapter"]/*' />
+    [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
+    [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)]
+    [Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")]
+    public class WmlTextBoxAdapter : WmlControlAdapter
+    {
+        private String _staticValue;
+
+        /// <include file='doc\WmlTextBoxAdapter.uex' path='docs/doc[@for="WmlTextBoxAdapter.Control"]/*' />
+        protected new TextBox Control
+        {
+            get
+            {
+                return (TextBox)base.Control;
+            }
+        }
+
+        /// <include file='doc\WmlTextBoxAdapter.uex' path='docs/doc[@for="WmlTextBoxAdapter.OnInit"]/*' />
+        public override void OnInit(EventArgs e)
+        {
+            _staticValue = Control.Text;
+            base.OnInit(e);
+        }
+
+        /// <include file='doc\WmlTextBoxAdapter.uex' path='docs/doc[@for="WmlTextBoxAdapter.Render"]/*' />
+        public override void Render(WmlMobileTextWriter writer)
+        {
+            String value = Control.Text;
+            bool requiresRandomID = RequiresRandomID();
+
+            writer.EnterLayout(Style);
+            if (Control.Password)
+            {
+                value = String.Empty;
+            }
+
+            if (!PageAdapter.RequiresValueAttributeInInputTag())
+            {
+                writer.AddFormVariable(Control.ClientID, value, requiresRandomID);
+            }
+            else
+            {
+                // This is to make sure an id is determined in the first
+                // pass, and this is done in AddFormVariable as well.
+                writer.MapClientIDToShortName(Control.ClientID, requiresRandomID);
+            }
+
+            String format = ((IAttributeAccessor)Control).GetAttribute("wmlFormat");
+            if (String.IsNullOrEmpty(format))
+            {
+                if (Control.Numeric)
+                {
+                    format = "*N";
+                }
+                else
+                {
+                    format = null;
+                }
+            }
+            
+            writer.RenderTextBox(Control.ClientID, 
+                                 value,
+                                 format, 
+                                 Control.Title,
+                                 Control.Password, 
+                                 Control.Size, 
+                                 Control.MaxLength, 
+                                 requiresRandomID,
+                                 Control.BreakAfter);
+            writer.ExitLayout(Style);
+        }
+
+        private bool RequiresRandomID()
+        {
+            String randomID = ((IAttributeAccessor)Control).GetAttribute("useRandomID");
+            if (randomID != null)
+            {
+                return String.Compare(randomID, "true", StringComparison.OrdinalIgnoreCase) == 0;
+            }
+            else
+            {
+                return Control.Password;
+            }
+        }
+
+        /// <include file='doc\WmlTextBoxAdapter.uex' path='docs/doc[@for="WmlTextBoxAdapter.GetPostBackValue"]/*' />
+        protected override String GetPostBackValue()
+        {
+            // Optimization - if viewstate is enabled for this control, and the
+            // postback returns to this page, we just let it do the trick.
+
+            if (Control.Form.Action.Length > 0 || (!IsViewStateEnabled() && Control.Text != _staticValue))
+            {
+                return Control.Text;
+            }
+            else
+            {
+                return null;
+            }
+        }
+
+        private bool IsViewStateEnabled()
+        {
+            Control ctl = Control;
+            while (ctl != null)
+            {
+                if (!ctl.EnableViewState)
+                {
+                    return false;
+                }
+                ctl = ctl.Parent;
+            }
+            return true;
+        }
+
+    }
+
+}
+