コード例 #1
0
ファイル: ImageSprite.cs プロジェクト: radleta/Frappe
        /// <summary>
        /// Creates a reference to the sprite / inlined version of the desired image including special attributes.
        /// </summary>
        /// <param name="virtualPath">The relative path of the image to be displayed</param>
        /// <param name="htmlAttributes">Html Attributes of IDictionary form</param>
        /// <returns>Image tag.</returns>
        public static IHtmlString Image(string virtualPath, IDictionary <string, object> htmlAttributes)
        {
            ImageOptimizations.EnsureInitialized();

            TagBuilder htmlTag = new TagBuilder("img");

            htmlTag.MergeAttributes(htmlAttributes);

            HttpContextBase httpContext = new HttpContextWrapper(HttpContext.Current);

            string localSpriteDirectory = Path.GetDirectoryName(httpContext.Server.MapPath(virtualPath));

            if (ImageOptimizations.LinkCompatibleCssFileName(httpContext.Request.Browser, localSpriteDirectory) == null)
            {
                htmlTag.MergeAttribute("src", ResolveUrl(virtualPath));
                return(new HtmlString(htmlTag.ToString(TagRenderMode.SelfClosing)));
            }
            else
            {
                htmlTag.AddCssClass(ImageOptimizations.MakeCssClassName(virtualPath));
                htmlTag.MergeAttribute("src", ResolveUrl(ImageOptimizations.GetBlankImageSource(httpContext.Request.Browser)));
                return(new HtmlString(htmlTag.ToString(TagRenderMode.SelfClosing)));
            }
        }
コード例 #2
0
ファイル: ImageSprite.cs プロジェクト: radleta/Frappe
        /// <summary>
        /// Creates the proper CSS link reference within the target CSHTML page's head section
        /// </summary>
        /// <param name="virtualPath">The relative path of the image to be displayed, or its directory</param>
        /// <returns>Link tag if the file is found.</returns>
        public static IHtmlString ImportStylesheet(string virtualPath)
        {
            ImageOptimizations.EnsureInitialized();

            if (Path.HasExtension(virtualPath))
            {
                virtualPath = Path.GetDirectoryName(virtualPath);
            }

            HttpContextBase httpContext = new HttpContextWrapper(HttpContext.Current);

            // Set up fileName and path variables
            string localPath = httpContext.Server.MapPath(virtualPath);

            string cssFileName = ImageOptimizations.LinkCompatibleCssFileName(httpContext.Request.Browser, localPath);

            if (cssFileName == null)
            {
                return(null);
            }

            virtualPath = Path.Combine(virtualPath, cssFileName);
            string physicalPath = HttpContext.Current.Server.MapPath(virtualPath);

            if (File.Exists(physicalPath))
            {
                TagBuilder htmlTag = new TagBuilder("link");
                htmlTag.MergeAttribute("href", ResolveUrl(virtualPath));
                htmlTag.MergeAttribute("rel", "stylesheet");
                htmlTag.MergeAttribute("type", "text/css");
                htmlTag.MergeAttribute("media", "all");
                return(new HtmlString(htmlTag.ToString(TagRenderMode.SelfClosing)));
            }

            return(null);
        }