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//------------------------------------------------------------------------------
// <copyright file="XhtmlBasicTextBoxAdapter.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
using System;
using System.Security.Permissions;
using System.Web.UI;
using System.Web.Mobile;
using System.Web.UI.MobileControls;
using System.Web.UI.MobileControls.Adapters;
using System.Globalization;
#if COMPILING_FOR_SHIPPED_SOURCE
namespace System.Web.UI.MobileControls.ShippedAdapterSource.XhtmlAdapters
#else
namespace System.Web.UI.MobileControls.Adapters.XhtmlAdapters
#endif
{
/// <include file='doc\XhtmlBasicTextBoxAdapter.uex' path='docs/doc[@for="XhtmlTextBoxAdapter"]/*' />
[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 XhtmlTextBoxAdapter : XhtmlControlAdapter {
/// <include file='doc\XhtmlBasicTextBoxAdapter.uex' path='docs/doc[@for="XhtmlTextBoxAdapter.Control"]/*' />
public new TextBox Control {
get {
return base.Control as TextBox;
}
}
// Used for optimization in RenderAsHiddenField.
private String _staticValue;
/// <include file='doc\XhtmlBasicTextBoxAdapter.uex' path='docs/doc[@for="XhtmlTextBoxAdapter.OnInit"]/*' />
public override void OnInit(EventArgs e) {
_staticValue = Control.Text;
base.OnInit(e);
}
/// <include file='doc\XhtmlBasicTextBoxAdapter.uex' path='docs/doc[@for="XhtmlTextBoxAdapter.Render"]/*' />
public override void Render(XhtmlMobileTextWriter writer) {
ConditionalClearPendingBreak(writer);
ConditionalEnterStyle(writer, Style);
ConditionalRenderOpeningSpanElement(writer);
if ((String) Device[XhtmlConstants.RequiresOnEnterForward] == "true") {
writer.AddOnEnterForwardSetVar(Control.UniqueID, Control.Text);
}
writer.WriteBeginTag("input");
writer.WriteAttribute("name", Control.UniqueID);
ConditionalRenderCustomAttribute(writer, XhtmlConstants.AccessKeyCustomAttribute);
String controlText = Control.Text;
if (controlText != null && controlText.Length > 0 && !Control.Password) {
writer.Write(" value=\"");
writer.WriteEncodedText(controlText);
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));
}
String requiresType = Device["requiresInputTypeAttribute"];
if (Control.Password) {
writer.WriteAttribute("type", "password");
}
// InvariantCulture not needed, but included for best practices.
else if (requiresType != null && String.Equals(requiresType, "true", StringComparison.OrdinalIgnoreCase)) {
writer.WriteAttribute("type", "text");
}
writer.Write("/>");
// ConditionalSetPendingBreak should always be called *before* ConditionalExitStyle.
// ConditionalExitStyle may render a block element and clear the pending break.
ConditionalSetPendingBreakAfterInline(writer);
ConditionalRenderClosingSpanElement(writer);
ConditionalExitStyle(writer, Style);
}
/// <include file='doc\XhtmlBasicTextBoxAdapter.uex' path='docs/doc[@for="XhtmlTextBoxAdapter.RenderAsHiddenInputField"]/*' />
protected override void RenderAsHiddenInputField(XhtmlMobileTextWriter 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;
}
}
}
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