C# StringWriter.WriteScriptBlock方法代碼示例

		/// <summary>
		/// Emits a series of script import tags and some inline script to support the AJAX OpenID Selector.
		/// </summary>
		/// <param name="html">The <see cref="HtmlHelper"/> on the view.</param>
		/// <param name="page">The page being rendered.</param>
		/// <param name="selectorOptions">An optional instance of an <see cref="OpenIdSelector"/> control, whose properties have been customized to express how this MVC control should be rendered.</param>
		/// <param name="additionalOptions">An optional set of additional script customizations.</param>
		/// <returns>
		/// HTML that should be sent directly to the browser.
		/// </returns>
		public static string OpenIdSelectorScripts(this HtmlHelper html, Page page, OpenIdSelector selectorOptions, OpenIdAjaxOptions additionalOptions) {
			Contract.Requires<ArgumentNullException>(html != null);
			Contract.Requires<ArgumentNullException>(page != null);
			Contract.Ensures(Contract.Result<string>() != null);

			if (selectorOptions == null) {
				selectorOptions = new OpenId.RelyingParty.OpenIdSelector();
			}

			if (additionalOptions == null) {
				additionalOptions = new OpenIdAjaxOptions();
			}

			StringWriter result = new StringWriter();

			if (additionalOptions.ShowDiagnosticIFrame || additionalOptions.ShowDiagnosticTrace) {
				string scriptFormat = @"window.openid_visible_iframe = {0}; // causes the hidden iframe to show up
window.openid_trace = {1}; // causes lots of messages";
				result.WriteScriptBlock(string.Format(
					CultureInfo.InvariantCulture,
					scriptFormat,
					additionalOptions.ShowDiagnosticIFrame ? "true" : "false",
					additionalOptions.ShowDiagnosticTrace ? "true" : "false"));
			}
			var scriptResources = new[] {
					OpenIdRelyingPartyControlBase.EmbeddedJavascriptResource,
					OpenIdRelyingPartyAjaxControlBase.EmbeddedAjaxJavascriptResource,
					OpenId.RelyingParty.OpenIdAjaxTextBox.EmbeddedScriptResourceName,
				};
			result.WriteScriptTags(page, scriptResources);

			if (selectorOptions.DownloadYahooUILibrary) {
				result.WriteScriptTags(new[] { "https://ajax.googleapis.com/ajax/libs/yui/2.8.0r4/build/yuiloader/yuiloader-min.js" });
			}

			var blockBuilder = new StringWriter();
			if (selectorOptions.DownloadYahooUILibrary) {
				blockBuilder.WriteLine(@"	try {
		if (YAHOO) {
			var loader = new YAHOO.util.YUILoader({
				require: ['button', 'menu'],
				loadOptional: false,
				combine: true
			});

			loader.insert();
		}
	} catch (e) { }");
			}

			blockBuilder.WriteLine("window.aspnetapppath = '{0}';", VirtualPathUtility.AppendTrailingSlash(HttpContext.Current.Request.ApplicationPath));

			// Positive assertions can last no longer than this library is willing to consider them valid,
			// and when they come with OP private associations they last no longer than the OP is willing
			// to consider them valid.  We assume the OP will hold them valid for at least five minutes.
			double assertionLifetimeInMilliseconds = Math.Min(TimeSpan.FromMinutes(5).TotalMilliseconds, Math.Min(DotNetOpenAuthSection.Configuration.OpenId.MaxAuthenticationTime.TotalMilliseconds, DotNetOpenAuthSection.Configuration.Messaging.MaximumMessageLifetime.TotalMilliseconds));
			blockBuilder.WriteLine(
				"{0} = {1};",
				OpenIdRelyingPartyAjaxControlBase.MaxPositiveAssertionLifetimeJsName,
				assertionLifetimeInMilliseconds.ToString(CultureInfo.InvariantCulture));

			if (additionalOptions.PreloadedDiscoveryResults != null) {
				blockBuilder.WriteLine(additionalOptions.PreloadedDiscoveryResults);
			}

			string discoverUrl = VirtualPathUtility.AppendTrailingSlash(HttpContext.Current.Request.ApplicationPath) + html.RouteCollection["OpenIdDiscover"].GetVirtualPath(html.ViewContext.RequestContext, new RouteValueDictionary(new { identifier = "xxx" })).VirtualPath;
			string blockFormat = @"	{0} = function (argument, resultFunction, errorCallback) {{
		jQuery.ajax({{
			async: true,
			dataType: 'text',
			error: function (request, status, error) {{ errorCallback(status, argument); }},
			success: function (result) {{ resultFunction(result, argument); }},
			url: '{1}'.replace('xxx', encodeURIComponent(argument))
		}});
	}};";
			blockBuilder.WriteLine(blockFormat, OpenIdRelyingPartyAjaxControlBase.CallbackJSFunctionAsync, discoverUrl);

			blockFormat = @"	window.postLoginAssertion = function (positiveAssertion) {{
		$('#{0}')[0].setAttribute('value', positiveAssertion);
		if ($('#{1}')[0] && !$('#{1}')[0].value) {{ // popups have no ReturnUrl predefined, but full page LogOn does.
			$('#{1}')[0].setAttribute('value', window.parent.location.href);
		}}
		document.forms[{2}].submit();
	}};";
			blockBuilder.WriteLine(
				blockFormat,
				additionalOptions.AssertionHiddenFieldId,
				additionalOptions.ReturnUrlHiddenFieldId,
				additionalOptions.FormKey);

//.........這裏部分代碼省略.........