XhtmlBasicImageAdapter.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / MIT / System / Web / UI / MobileControls / Adapters / XhtmlAdapters / XhtmlBasicImageAdapter.cs / 1305376 / XhtmlBasicImageAdapter.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

using System; 
using System.Security.Permissions; 
using System.Web.Mobile;
using System.Web.UI.MobileControls; 
using System.Web.UI.MobileControls.Adapters;

#if COMPILING_FOR_SHIPPED_SOURCE
namespace System.Web.UI.MobileControls.ShippedAdapterSource.XhtmlAdapters 
#else
namespace System.Web.UI.MobileControls.Adapters.XhtmlAdapters 
#endif 
{
 
    /// 
    [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 XhtmlImageAdapter : XhtmlControlAdapter {
 
        ///  
        protected new Image Control {
            get { 
                return base.Control as Image;
            }
        }
 
        /// 
        public override void Render(XhtmlMobileTextWriter writer) { 
            string target = Control.NavigateUrl; 
            ConditionalClearPendingBreak(writer);
            Style style = Style; 
            StyleFilter filter = writer.CurrentStyleClass.GetFilter(style);
            if ((filter & XhtmlConstants.Layout) != 0) {
                ConditionalEnterLayout(writer, style);
            } 

            if(target != null && target.Length > 0) { 
                String cssClass = GetCustomAttributeValue(XhtmlConstants.CssClassCustomAttribute); 
                String accessKey = GetCustomAttributeValue(XhtmlConstants.AccessKeyCustomAttribute);
                String title = GetCustomAttributeValue(XhtmlConstants.TitleCustomAttribute); 
                RenderBeginLink(writer, target, accessKey, style, cssClass, title);
            }
            else{
                ConditionalEnterFormat(writer, style); 
                ConditionalRenderOpeningSpanElement(writer);
            } 
            String controlIU = Control.ImageUrl; 
            if(controlIU == null || controlIU.Length == 0) {
                writer.WriteEncodedText(Control.AlternateText); 
            }
            else {
                RenderImage(writer);
            } 
            ConditionalSetPendingBreakAfterInline(writer);
            if(target != null && target.Length > 0) { 
                RenderEndLink(writer); 
            }
            else { 
                ConditionalRenderClosingSpanElement(writer);
                ConditionalExitFormat(writer, style);
            }
            if ((filter & XhtmlConstants.Layout) != 0) { 
                ConditionalExitLayout(writer, style);
            } 
        } 

        ///  
        protected virtual void RenderImage(XhtmlMobileTextWriter writer) {
            String source = Control.ImageUrl;
            writer.WriteBeginTag("img");
            if(source != null && source.Length > 0) { 
                source = Page.Server.UrlPathEncode(Control.ResolveUrl(source.Trim()));
                writer.WriteAttribute("src", source, true); 
                writer.AddResource(source); 
            }
 
            String alternateText = Control.AlternateText;
            if (alternateText == null || alternateText.Length == 0) {
                alternateText = " "; // ASURT 143759 and VSWhidbey 78593
            } 
            writer.WriteAttribute("alt", alternateText, true);
 
            // Review: Html adapter writes border=0 attribute, but don't need this here? 
            writer.Write(" />");
        } 
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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