73 lines
3 KiB
C#
73 lines
3 KiB
C#
// Copyright (c) 2014, Outercurve Foundation.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification,
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// are permitted provided that the following conditions are met:
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//
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// - Redistributions of source code must retain the above copyright notice, this
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// list of conditions and the following disclaimer.
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//
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// - Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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//
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// - Neither the name of the Outercurve Foundation nor the names of its
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// contributors may be used to endorse or promote products derived from this
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// software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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using System;
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using System.Data;
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using System.Collections;
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using System.Configuration;
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using System.Web;
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using System.Web.Security;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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using System.Web.UI.WebControls.WebParts;
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using System.Web.UI.HtmlControls;
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namespace CSSFriendly
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{
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public class ImageAdapter : System.Web.UI.WebControls.Adapters.WebControlAdapter
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{
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protected override void Render(HtmlTextWriter writer)
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{
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Image img = Control as Image;
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//
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if (img != null && Page != null)
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{
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//
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HttpBrowserCapabilities browser = Page.Request.Browser;
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//
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if (browser.Browser == "IE" &&
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(browser.Version == "5.0" || browser.Version == "5.5" || browser.Version == "6.0")
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&& !String.IsNullOrEmpty(img.ImageUrl) && img.ImageUrl.ToLower().EndsWith(".png"))
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{
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// add other attributes
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string imageUrl = img.ImageUrl; // save original URL
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// change original URL to empty
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img.ImageUrl = Page.ClientScript.GetWebResourceUrl(this.GetType(), "WebsitePanel.WebPortal.Code.Adapters.empty.gif");
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imageUrl = img.ResolveClientUrl(imageUrl);
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img.Attributes["style"] =
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String.Format("filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='{0}', sizingMethod='scale');",
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imageUrl);
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}
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}
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//
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base.Render(writer);
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}
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}
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}
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