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using JavaScriptViewEngine.Middleware;
using System;
using JavaScriptViewEngine.Pool;
#if DOTNETCORE
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Mvc;
using AppBuilder = Microsoft.AspNetCore.Builder.IApplicationBuilder;
#else
using Owin;
using AppBuilder = Owin.IAppBuilder;
#endif
#if DI
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.DependencyInjection.Extensions;
using Microsoft.Extensions.Options;
#endif
namespace JavaScriptViewEngine
{
public static class Extensions
{
/// <summary>
/// Added the middlware that creates and disposes a <see cref="IRenderEngine"/> for each request
/// </summary>
/// <param name="app">The application.</param>
public static void UseJsEngine(
this AppBuilder app
#if !DOTNETCORE
, IRenderEngineFactory renderEngineFactory
#endif
)
{
#if !DOTNETCORE
app.Use<RenderEngineMiddleware>(renderEngineFactory);
#else
app.UseMiddleware<RenderEngineMiddleware>();
#endif
}
#if DI
/// <summary>
/// Add the services required to use a render engine, a pool, etc.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="services">The services.</param>
public static void AddJsEngine(this IServiceCollection services)
{
services.TryAddEnumerable(ServiceDescriptor.Transient<IConfigureOptions<MvcViewOptions>, JavaScriptViewEngineMvcViewOptionsSetup>());
services.TryAddTransient<IFileWatcher, FileWatcher>();
services.TryAddTransient<IRenderEnginePool, RenderEnginePool>();
services.TryAddTransient<IRenderEngineBuilder, NodeRenderEngineBuilder>();
services.TryAddSingleton<IRenderEngineFactory, RenderEngineFactory>();
services.TryAddTransient<IJsViewEngine, JsViewEngine>();
}
/// <summary>
/// This will add <see cref="JsViewEngine"/> to a collection used by mvc to render
/// </summary>
internal class JavaScriptViewEngineMvcViewOptionsSetup : ConfigureOptions<MvcViewOptions>
{
/// <summary>
/// Initializes a new instance of <see cref="JavaScriptViewEngineMvcViewOptionsSetup"/>.
/// </summary>
/// <param name="serviceProvider">The application's <see cref="IServiceProvider"/>.</param>
public JavaScriptViewEngineMvcViewOptionsSetup(IServiceProvider serviceProvider)
: base(options => ConfigureMvc(serviceProvider, options))
{
}
/// <summary>
/// Configures <paramref name="options"/> to use <see cref="JsViewEngine"/>.
/// </summary>
/// <param name="serviceProvider">The application's <see cref="IServiceProvider"/>.</param>
/// <param name="options">The <see cref="MvcViewOptions"/> to configure.</param>
public static void ConfigureMvc(
IServiceProvider serviceProvider,
MvcViewOptions options)
{
if (serviceProvider == null)
throw new ArgumentNullException(nameof(serviceProvider));
if (options == null)
throw new ArgumentNullException(nameof(options));
var jsViewEngine = serviceProvider.GetRequiredService<IJsViewEngine>();
options.ViewEngines.Add(jsViewEngine);
}
}
#endif
}
}