Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

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

@@ -0,0 +1,88 @@
+//------------------------------------------------------------------------------
+// <copyright file="ChtmlTextBoxAdapter.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+//------------------------------------------------------------------------------
+
+using System.Security.Permissions;
+
+#if COMPILING_FOR_SHIPPED_SOURCE
+namespace System.Web.UI.MobileControls.ShippedAdapterSource
+#else
+namespace System.Web.UI.MobileControls.Adapters
+#endif    
+
+{
+    /*
+     * ChtmlTextBoxAdapter class.
+     *
+     * Copyright (c) 2000 Microsoft Corporation
+     */
+    /// <include file='doc\ChtmlTextBoxAdapter.uex' path='docs/doc[@for="ChtmlTextBoxAdapter"]/*' />
+    [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 ChtmlTextBoxAdapter : HtmlTextBoxAdapter
+    {
+        private static Random _random = new Random();
+
+        /// <include file='doc\ChtmlTextBoxAdapter.uex' path='docs/doc[@for="ChtmlTextBoxAdapter.AddAttributes"]/*' />
+        protected override void AddAttributes(HtmlMobileTextWriter writer)
+        {
+            if (Control.Numeric)
+            {
+                if (Device.SupportsInputIStyle)
+                {
+                    // The default input mode is always numeric if the
+                    // type is password.
+                    if (!Control.Password)
+                    {
+                        writer.WriteAttribute("istyle", "4");
+                    }
+                }
+                else if (Device.SupportsInputMode)
+                {
+                    writer.WriteAttribute("mode", "numeric");
+                }
+            }
+
+            AddAccesskeyAttribute(writer);
+            AddJPhoneMultiMediaAttributes(writer);
+        }
+
+        /// <include file='doc\ChtmlTextBoxAdapter.uex' path='docs/doc[@for="ChtmlTextBoxAdapter.RequiresFormTag"]/*' />
+        public override bool RequiresFormTag
+        {
+            get
+            {
+                return true;
+            }
+        }
+
+        private String GetRandomID(int length)
+        {
+            Byte[] randomBytes = new Byte[length];
+            _random.NextBytes(randomBytes);
+
+            char[] randomChars = new char[length];
+            for (int i = 0; i < length; i++)
+            {
+                randomChars[i] = (char)((((int)randomBytes[i]) % 26) + 'a');
+            }
+
+            return new String(randomChars);
+        }
+
+        internal override String GetRenderName()
+        {
+            String renderName = base.GetRenderName();
+
+            if (Device.RequiresUniqueHtmlInputNames)
+            {
+                renderName += Constants.SelectionListSpecialCharacter + GetRandomID(4);
+            }
+
+            return renderName;
+        }
+    }
+}