71 lines
2.3 KiB
C#
71 lines
2.3 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Web;
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using System.Web.Mvc;
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namespace ReportViewerForMvc
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{
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internal class IframeBuilder
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{
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internal static HtmlString Iframe(object htmlAttributes)
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{
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IDictionary<string, object> parsedHtmlAttributes = HtmlHelper.AnonymousObjectToHtmlAttributes(htmlAttributes);
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ReportViewerForMvc.IframeId = GetId(parsedHtmlAttributes);
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string parsedIframe = CreateIframeTag(parsedHtmlAttributes);
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parsedIframe += ReceiveMessageScript();
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parsedIframe += SetIframeIdScript();
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return new HtmlString(parsedIframe);
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}
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private static string GetId(IDictionary<string, object> htmlAttributes)
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{
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string id;
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if (htmlAttributes["id"] == null)
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{
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id = "r" + Guid.NewGuid().ToString();
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}
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else
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{
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id = TagBuilder.CreateSanitizedId(htmlAttributes["id"].ToString());
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if (id == null)
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{
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throw new ArgumentNullException("htmlAttributes.id", "Value cannot be null.");
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}
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}
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return id;
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}
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private static string CreateIframeTag(IDictionary<string, object> htmlAttributes)
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{
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string applicationPath = (HttpContext.Current.Request.ApplicationPath == "/") ? "" : HttpContext.Current.Request.ApplicationPath;
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TagBuilder tagBuilder = new TagBuilder("iframe");
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tagBuilder.GenerateId(ReportViewerForMvc.IframeId);
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tagBuilder.MergeAttribute("src", applicationPath +"/ReportViewerWebForm.aspx");
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tagBuilder.MergeAttributes(htmlAttributes, false);
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tagBuilder.SetInnerText("iframes not supported.");
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return tagBuilder.ToString();
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}
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private static string ReceiveMessageScript()
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{
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string script = "<script src=\"" + WebResourceHelper.GetWebResourceUrl(typeof(ReportViewerForMvc), "ReportViewerForMvc.Scripts.ReceiveMessage.js") + "\"></script>";
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return script;
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}
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private static string SetIframeIdScript()
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{
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string script = "<script>ReportViewerForMvc.setIframeId('" + ReportViewerForMvc.IframeId + "');</script>";
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return script;
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}
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}
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}
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