C# ViewLocationResult类代码示例

        public Response RenderView(ViewLocationResult viewLocationResult, dynamic model, IRenderContext renderContext)
        {
            var template = renderContext.ViewCache.GetOrAdd(viewLocationResult, result =>
            {
                try
                {
                    var context = new NancyVeilContext(renderContext, Extensions);
                    var engine = new VeilEngine(context);
                    Type modelType = model == null ? typeof(object) : model.GetType();
                    return engine.CompileNonGeneric(viewLocationResult.Extension, result.Contents(), modelType);
                }
                catch (Exception e)
                {
                    return CreateErrorPage(e);
                }
            });

            var response = new HtmlResponse();
            response.ContentType = "text/html; charset=utf-8";
            response.Contents = s =>
            {
                var writer = new StreamWriter(s, Encoding.UTF8);
                template(writer, model);
                writer.Flush();
            };
            return response;
        }

        public void Include_should_look_for_a_partial()
        {
            // Set up the view startup context
            string partialPath = Path.Combine(Environment.CurrentDirectory, @"TestViews\_partial.liquid");

            // Set up a ViewLocationResult that the test can use
            var testLocation = new ViewLocationResult(
                Environment.CurrentDirectory,
                "test",
                "liquid",
                () => new StringReader(@"<h1>Including a partial</h1>{% include 'partial' %}")
            );

            var partialLocation = new ViewLocationResult(
                partialPath,
                "partial",
                "liquid",
                () => new StringReader(File.ReadAllText(partialPath))
            );

            var currentStartupContext = CreateContext(new [] {testLocation, partialLocation});

            this.engine = new DotLiquidViewEngine(new LiquidNancyFileSystem(currentStartupContext));

            // Given
            var stream = new MemoryStream();

            // When
            var response = this.engine.RenderView(testLocation, null, this.renderContext);
            response.Contents.Invoke(stream);

            // Then
            stream.ShouldEqual("<h1>Including a partial</h1>Some template.");
        }

 public static Template GetTemplateFromFile(ViewLocationResult path)
 {
     // can't cache anything here since template depends on current context
     var contents = path.Contents;
     var template = Template.Parse(contents);
     return template;
 }

        /// <summary>
        /// Renders the view.
        /// </summary>
        /// <param name="viewLocationResult">A <see cref="ViewLocationResult"/> instance, containing information on how to get the view template.</param>
        /// <param name="model">The model that should be passed into the view</param>
        /// <param name="renderContext"></param>
        /// <returns>A delegate that can be invoked with the <see cref="Stream"/> that the view should be rendered to.</returns>
        public Action<Stream> RenderView(ViewLocationResult viewLocationResult, dynamic model, IRenderContext renderContext)
        {
            return stream =>{

                var templateManagerProvider =
                    new TemplateManagerProvider()
                        .WithLoader(new TemplateLoader(viewLocationResult.Contents.Invoke()));

                var templateManager =
                    templateManagerProvider.GetNewManager();

                var template = renderContext.ViewCache.GetOrAdd(
                    viewLocationResult,
                    x => templateManager.GetTemplate(string.Empty));

                var context = new Dictionary<string, object> { { "Model", model } };
                var reader = template.Walk(templateManager, context);

                var writer =
                    new StreamWriter(stream);

                writer.Write(reader.ReadToEnd());
                writer.Flush();
            };
        }

        public void Should_be_able_to_render_view_with_partial_to_stream()
        {
            // Given
            var location = new ViewLocationResult(
                string.Empty,
                string.Empty,
                "cshtml",
                () => new StringReader(@"@{var x = ""test"";}<h1>Hello Mr. @x</h1> @Html.Partial(""partial.cshtml"")")
            );

            var partialLocation = new ViewLocationResult(
                string.Empty,
                "partial.cshtml",
                "cshtml",
                () => new StringReader(@"this is partial")
            );

            A.CallTo(() => this.renderContext.LocateView("partial.cshtml",null)).Returns(partialLocation);

            var stream = new MemoryStream();

            // When
            var response = this.engine.RenderView(location, null,this.renderContext);
            response.Contents.Invoke(stream);

            // Then
            stream.ShouldEqual("<h1>Hello Mr. test</h1> this is partial");
        }

        public void Should_return_Markdown()
        {
            // Given
            const string markdown = @"#Header1
##Header2
###Header3
Hi there!
> This is a blockquote.";

            var location = new ViewLocationResult(
                string.Empty,
                string.Empty,
                "md",
                () => new StringReader(markdown)
            );

            var html = this.viewEngine.ConvertMarkdown(location);

            var stream = new MemoryStream();

            A.CallTo(() => this.renderContext.ViewCache.GetOrAdd(location, A<Func<ViewLocationResult, string>>.Ignored))
             .Returns(html);

            // When
            var response = this.viewEngine.RenderView(location, null, this.renderContext);
            response.Contents.Invoke(stream);

            // Then
            var result = ReadAll(stream);
            result.ShouldEqual(html);
        }

        public virtual IDictionary<string, object> GetExtraParameters(ViewLocationResult viewLocationResult)
        {
            var extra = new Dictionary<string, object>();
            foreach (var filter in Filters)
            {
                filter.ExtraParameters(viewLocationResult, extra);
            }

            return extra;
        }

        /// <summary>
        /// Renders the view.
        /// </summary>
        /// <param name="viewLocationResult">A <see cref="ViewLocationResult"/> instance, containing information on how to get the view template.</param>
        /// <param name="model">The model that should be passed into the view</param>
        /// <returns>A response.</returns>
        public Response RenderView(ViewLocationResult viewLocationResult, dynamic model, IRenderContext renderContext)
        {
            return new HtmlResponse(contents: s =>
                {
                    var writer = new StreamWriter(s);
                    var templateContents = renderContext.ViewCache.GetOrAdd(viewLocationResult, vr => vr.Contents.Invoke().ReadToEnd());

                    writer.Write(this.viewEngine.Render(templateContents, model, new NancyViewEngineHost(renderContext)));
                    writer.Flush();
                });
        }

 public Response RenderView(ViewLocationResult viewLocationResult, dynamic model, IRenderContext renderContext)
 {
     System.Diagnostics.Debug.WriteLine("test");
     return new HtmlResponse(
         contents: stream =>
         {
             var templateFactory = renderContext.ViewCache.GetOrAdd(
                 viewLocationResult, x => GetTemplateFactory(viewLocationResult));
             RenderTemplateFromTemplateFactory(templateFactory, stream, model, renderContext.Context);
         }
     );
 }

        /// <summary>
        /// Renders the view.
        /// </summary>
        /// <param name="viewLocationResult">A <see cref="ViewLocationResult"/> instance, containing information on how to get the view template.</param>
        /// <param name="model">The model that should be passed into the view</param>
        /// <returns>A delegate that can be invoked with the <see cref="Stream"/> that the view should be rendered to.</returns>
        public Action<Stream> RenderView(ViewLocationResult viewLocationResult, dynamic model, IRenderContext renderContext)
        {
            Interlocked.CompareExchange(ref this.viewEngine, new SuperSimpleViewEngine(new NancyViewEngineHost(renderContext)), null);

            return s =>
            {
                var writer = new StreamWriter(s);
                var templateContents = renderContext.ViewCache.GetOrAdd(viewLocationResult, vr => vr.Contents.Invoke().ReadToEnd());

                writer.Write(this.viewEngine.Render(templateContents, model));
                writer.Flush();
            };
        }

        /// <summary>
        /// Converts the markdown.
        /// </summary>
        /// <returns>
        /// HTML converted from markdown
        /// </returns>
        /// <param name='viewLocationResult'>
        /// View location result.
        /// </param>
        public string ConvertMarkdown(ViewLocationResult viewLocationResult)
        {
            string content =
                viewLocationResult.Contents().ReadToEnd();

            if (content.StartsWith("<!DOCTYPE html>"))
            {
                return MarkdownViewengineRender.RenderMasterPage(content);
            }

            var parser = new Markdown();
            var html = parser.Transform(content);
            return ParagraphSubstitution.Replace(html, "$1");
        }

        /// <summary>
        /// Renders the view.
        /// </summary>
        /// <param name="viewLocationResult">A <see cref="ViewLocationResult"/> instance, containing information on how to get the view template.</param>
        /// <param name="model">The model to be passed into the view</param>
        /// <param name="renderContext"></param>
        /// <returns>A response</returns>
        public Response RenderView(ViewLocationResult viewLocationResult, dynamic model, IRenderContext renderContext)
        {
            return new HtmlResponse
            {
                Contents = stream =>
                {
                    var templateName = viewLocationResult.Name;

                    var handlebars = threadLocalHandlebars.Value;
                    handlebars.RegisterTemplate(templateName, () =>
                    {
                        using (var textReader = viewLocationResult.Contents())
                        {
                            return textReader.ReadToEnd();
                        }

                    });
                    foreach (var partial in viewLocator.GetAllCurrentlyDiscoveredViews().Where(x => x.Name.StartsWith("_")))
                    {
                        var partialName = partial.Name.TrimStart('_');
                        handlebars.RegisterPartial(partialName, () =>
                        {
                            using (var textReader = partial.Contents())
                            {
                                return textReader.ReadToEnd();
                            }
                        });
                    }
                    using (var writer = new StreamWriter(stream))
                    {
                        dynamic output;
                        try
                        {
                            output = handlebars.Transform(templateName, model);
                        }
                        catch (Exception)
                        {
                            //TODO: remove this exception handling after a few versions
                            var templateContents = viewLocationResult.Contents().ReadToEnd();
                            if (templateContents.Contains("{{> _") || templateContents.Contains("{{>_"))
                            {
                                throw new Exception(string.Format("Template '{0}' contains and underscore prefixed partial name. This is no longer required. Search for the string '{{>_' or '{{> _' in your template and remove the '_'.", templateName));
                            }
                            throw;
                        }
                        writer.Write(output);
                    }
                }
            };
        }

        public void RenderViewSetsPath()
        {
            // arrange
            var templateLocator = A.Fake<IViewLocator>();
            var viewCompiler = A.Fake<IViewCompiler>();
            var viewLocationResult = new ViewLocationResult(@"c:\some\fake\path", null);
            A.CallTo(() => templateLocator.GetTemplateContents("test")).Returns(viewLocationResult);
            var engine = new RazorViewEngine(templateLocator, viewCompiler);

            // act
            var result = engine.RenderView("test", null);

            // assert
            result.Location.ShouldEqual(@"c:\some\fake\path");
        }

        public void Render_should_create_valid_nhaml_IViewSource()
        {
            // Given
            var textReader = new StringReader("Hello world");
            var viewLocationResult = new ViewLocationResult("folder", "file", "haml", () => textReader);

            // When
            var template = engine.RenderView(viewLocationResult, null, this.renderContext);
            template.Contents.Invoke(new MemoryStream());

            // Then
            A.CallTo(() => nHamlEngine.GetCompiledTemplate(
                A<NancyNHamlView>.That.Matches(x => x.FilePath == @"folder\file.haml" && x.GetTextReader() == textReader),
                A<Type>.Ignored)).MustHaveHappened();
        }

        public Response RenderView(ViewLocationResult viewLocationResult, dynamic model, IRenderContext renderContext)
        {
            //we already have a view but we still need a view provider
            return new HtmlResponse(contents: stream =>
                {
                    var host = new NancyParrotHost(_modelValueProviderFactory, new NancyPathResolver(renderContext));
                    var parrotWriter = host.CreateWriter();
                    var rendererFactory = host.RendererFactory;
                    var view = new ParrotView(host, rendererFactory, _parrotViewLocator, viewLocationResult.Contents, parrotWriter);
                    var writer = new StreamWriter(stream);
                    
                    view.Render(model, writer);

                    writer.Flush();
                });
        }