52 lines
2.8 KiB
C#
52 lines
2.8 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="ControlRenderingHelper.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//------------------------------------------------------------------------------
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namespace System.Web.UI {
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using System;
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using System.Web.Util;
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internal static class ControlRenderingHelper {
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private static readonly string SkipLinkContentMark = "_SkipLink";
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internal static void WriteSkipLinkStart(HtmlTextWriter writer, Version renderingCompatibility, bool designMode, string skipLinkText, string spacerImageUrl, string clientID) {
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if (skipLinkText.Length != 0 && !designMode) {
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if (renderingCompatibility >= VersionUtil.Framework45) {
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writer.AddAttribute(HtmlTextWriterAttribute.Href, '#' + clientID + SkipLinkContentMark);
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writer.AddStyleAttribute(HtmlTextWriterStyle.Position, "absolute");
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writer.AddStyleAttribute(HtmlTextWriterStyle.Left, "-10000px");
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writer.AddStyleAttribute(HtmlTextWriterStyle.Top, "auto");
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writer.AddStyleAttribute(HtmlTextWriterStyle.Width, "1px");
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writer.AddStyleAttribute(HtmlTextWriterStyle.Height, "1px");
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writer.AddStyleAttribute(HtmlTextWriterStyle.Overflow, "hidden");
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writer.RenderBeginTag(HtmlTextWriterTag.A);
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writer.Write(skipLinkText);
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writer.RenderEndTag();
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}
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else {
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writer.AddAttribute(HtmlTextWriterAttribute.Href, '#' + clientID + SkipLinkContentMark);
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writer.RenderBeginTag(HtmlTextWriterTag.A);
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writer.AddAttribute(HtmlTextWriterAttribute.Alt, skipLinkText);
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writer.AddAttribute(HtmlTextWriterAttribute.Src, spacerImageUrl);
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writer.AddStyleAttribute(HtmlTextWriterStyle.BorderWidth, "0px");
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writer.AddAttribute(HtmlTextWriterAttribute.Width, "0");
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writer.AddAttribute(HtmlTextWriterAttribute.Height, "0");
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writer.RenderBeginTag(HtmlTextWriterTag.Img);
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writer.RenderEndTag();
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writer.RenderEndTag();
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}
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}
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}
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internal static void WriteSkipLinkEnd(HtmlTextWriter writer, bool designMode, string skipLinkText, string clientID) {
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if (skipLinkText.Length != 0 && !designMode) {
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writer.AddAttribute(HtmlTextWriterAttribute.Id, clientID + SkipLinkContentMark); // XHTML 1.1 needs id instead of name
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writer.RenderBeginTag(HtmlTextWriterTag.A);
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writer.RenderEndTag();
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}
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}
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}
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}
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