Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

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

@@ -0,0 +1,121 @@
+//------------------------------------------------------------------------------
+// <copyright file="HtmlTextBoxAdapter.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+//------------------------------------------------------------------------------
+
+using System.Security.Permissions;
+using System.Globalization;
+
+#if COMPILING_FOR_SHIPPED_SOURCE
+namespace System.Web.UI.MobileControls.ShippedAdapterSource
+#else
+namespace System.Web.UI.MobileControls.Adapters
+#endif    
+
+{
+    /*
+     * HtmlTextBoxAdapter class.
+     *
+     * Copyright (c) 2000 Microsoft Corporation
+     */
+    /// <include file='doc\HtmlTextBoxAdapter.uex' path='docs/doc[@for="HtmlTextBoxAdapter"]/*' />
+    [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 HtmlTextBoxAdapter : HtmlControlAdapter
+    {
+        private String _staticValue;
+
+        /// <include file='doc\HtmlTextBoxAdapter.uex' path='docs/doc[@for="HtmlTextBoxAdapter.Control"]/*' />
+        protected new TextBox Control
+        {
+            get
+            {
+                return (TextBox)base.Control;
+            }
+        }
+
+        /// <include file='doc\HtmlTextBoxAdapter.uex' path='docs/doc[@for="HtmlTextBoxAdapter.OnInit"]/*' />
+        public override void OnInit(EventArgs e)
+        {
+            _staticValue = Control.Text;
+            base.OnInit(e);
+        }
+
+        /// <include file='doc\HtmlTextBoxAdapter.uex' path='docs/doc[@for="HtmlTextBoxAdapter.Render"]/*' />
+        public override void Render(HtmlMobileTextWriter writer)
+        {
+            writer.EnterLayout(Style); 
+
+            writer.WriteBeginTag("input");
+
+            writer.WriteAttribute("name", GetRenderName());
+
+            if ((Control.Text == null || Control.Text.Length > 0) && !Control.Password)
+            {
+                writer.Write(" value=\"");
+                writer.WriteText(Control.Text, true);
+                writer.Write("\"");
+            }
+            if (Control.Size > 0)
+            {
+                writer.WriteAttribute("size", Control.Size.ToString(CultureInfo.InvariantCulture));
+            }
+            if (Control.MaxLength > 0)
+            {
+                writer.WriteAttribute("maxlength", Control.MaxLength.ToString(CultureInfo.InvariantCulture));
+            }
+            if (Control.Password)
+            {
+                writer.WriteAttribute("type", "password");
+            }
+            AddAttributes(writer);
+            writer.Write("/>");
+
+            writer.ExitLayout(Style, Control.BreakAfter);
+            writer.InputWritten = true;
+        }
+
+        internal virtual String GetRenderName()
+        {
+            String renderName;
+            if(Device.RequiresAttributeColonSubstitution)
+            {
+                renderName = Control.UniqueID.Replace(':', ',');
+            }
+            else
+            {
+                renderName = Control.UniqueID;
+            }
+
+            return renderName;
+        }
+
+        /// <include file='doc\HtmlTextBoxAdapter.uex' path='docs/doc[@for="HtmlTextBoxAdapter.RenderAsHiddenInputField"]/*' />
+        protected override void RenderAsHiddenInputField(HtmlMobileTextWriter writer)
+        {
+            // 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))
+            {
+                writer.WriteHiddenField(Control.UniqueID, Control.Text);
+            }
+        }
+
+        private bool IsViewStateEnabled()
+        {
+            Control ctl = Control;
+            while (ctl != null)
+            {
+                if (!ctl.EnableViewState)
+                {
+                    return false;
+                }
+                ctl = ctl.Parent;
+            }
+            return true;
+        }
+    }
+}