Use JavaScriptLoggingTagHelperComponent

hishamco · hishamco · commit 277a9ba46ddc · 2017-04-04T05:52:38.000+03:00
diff --git a/jsLogger/Startup.cs b/jsLogger/Startup.cs
@@ -5,6 +5,8 @@
 using Microsoft.Extensions.Logging;
 using Microsoft.AspNetCore.Routing;
 using jsLogger.Extensions;
+using Microsoft.AspNetCore.Razor.TagHelpers;
+using jsLogger.TagHelpers;
 
 namespace jsLogger
 {
@@ -30,6 +32,8 @@ public void ConfigureServices(IServiceCollection services)
             {
                 options.HandleGlobalExceptions = true;
             });
+
+            services.AddSingleton<ITagHelperComponent, JavaScriptLoggingTagHelperComponent>();
         }
 
         public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
diff --git a/jsLogger/TagHelpers/JavaScriptLoggingTagHelperComponent.cs b/jsLogger/TagHelpers/JavaScriptLoggingTagHelperComponent.cs
@@ -0,0 +1,28 @@
+﻿using Microsoft.AspNetCore.Razor.TagHelpers;
+using System;
+using System.Threading.Tasks;
+
+namespace jsLogger.TagHelpers
+{
+    public class JavaScriptLoggingTagHelperComponent : TagHelperComponent
+    {
+        private readonly string _script;
+
+        public JavaScriptLoggingTagHelperComponent(JavaScriptLoggingSnippet jsLoggingSnippet)
+        {
+            _script = jsLoggingSnippet.Script;
+        }
+
+        public override int Order => 1;
+
+        public override Task ProcessAsync(TagHelperContext context, TagHelperOutput output)
+        {
+            if (string.Equals(context.TagName, "head", StringComparison.Ordinal))
+            {
+                output.PostContent.AppendHtml(_script);
+            }
+
+            return Task.CompletedTask;
+        }
+    }
+}
diff --git a/jsLogger/Views/Shared/_Layout.cshtml b/jsLogger/Views/Shared/_Layout.cshtml
@@ -1,6 +1,4 @@
-﻿@inject JavaScriptLoggingSnippet JavaScriptLoggingSnippet
-
-<!DOCTYPE html>
+﻿<!DOCTYPE html>
 <html>
 <head>
     <meta charset="utf-8" />
@@ -17,7 +15,6 @@
               asp-fallback-test-class="sr-only" asp-fallback-test-property="position" asp-fallback-test-value="absolute" />
         <link rel="stylesheet" href="~/css/site.min.css" asp-append-version="true" />
     </environment>
-    @Html.Raw(JavaScriptLoggingSnippet.Script)
 </head>
 <body>
     <nav class="navbar navbar-inverse navbar-fixed-top">

Original file line number	Diff line number	Diff line change
`@@ -5,6 +5,8 @@`
`5`	`5`	`using Microsoft.Extensions.Logging;`
`6`	`6`	`using Microsoft.AspNetCore.Routing;`
`7`	`7`	`using jsLogger.Extensions;`
	`8`	`+using Microsoft.AspNetCore.Razor.TagHelpers;`
	`9`	`+using jsLogger.TagHelpers;`
`8`	`10`
`9`	`11`	`namespace jsLogger`
`10`	`12`	`{`
`@@ -30,6 +32,8 @@ public void ConfigureServices(IServiceCollection services)`
`30`	`32`	`{`
`31`	`33`	`options.HandleGlobalExceptions = true;`
`32`	`34`	`});`
	`35`	`+`
	`36`	`+ services.AddSingleton<ITagHelperComponent, JavaScriptLoggingTagHelperComponent>();`
`33`	`37`	`}`
`34`	`38`
`35`	`39`	`public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)`