private IRazorPage GetLayoutPage(ViewContext context, string executingFilePath, string layoutPath)
{
var layoutPageResult = _viewEngine.GetPage(executingFilePath, layoutPath);
var originalLocations = layoutPageResult.SearchedLocations;
if (layoutPageResult.Page == null)
{
layoutPageResult = _viewEngine.FindPage(context, layoutPath);
}
if (layoutPageResult.Page == null)
{
var locations = string.Empty;
if (originalLocations.Any())
{
locations = Environment.NewLine + string.Join(Environment.NewLine, originalLocations);
}
if (layoutPageResult.SearchedLocations.Any())
{
locations +=
Environment.NewLine + string.Join(Environment.NewLine, layoutPageResult.SearchedLocations);
}
throw new InvalidOperationException(Resources.FormatLayoutCannotBeLocated(layoutPath, locations));
}
var layoutPage = layoutPageResult.Page;
return(layoutPage);
}
public RazorPageResult GetPage(string executingFilePath, string pagePath)
{
_locker.EnterReadLock();
try
{
return(_current.GetPage(executingFilePath, pagePath));
}
finally
{
_locker.ExitReadLock();
}
}
public override async Task ExecuteResultAsync(ActionContext context)
{
if (!(context is PageContext pageContext))
{
throw new ArgumentException($"{nameof(context)} should be instance of type {typeof(PageContext).Name}");
}
string executingFilePath = ".";
string basePath = this.Page.Path;
string fileName = Path.GetFileName(basePath);
string pageName = Path.GetFileNameWithoutExtension(basePath);
string directory = basePath.Substring(0, basePath.Length - fileName.Length);
while (directory[directory.Length - 1] == '/')
{
directory = directory.Substring(0, directory.Length - 1);
}
HttpContext httpContext = pageContext.HttpContext;
IRazorViewEngine engine = httpContext.RequestServices.GetRequiredService <IRazorViewEngine>();
ICultureContext cultureContext = httpContext.RequestServices.GetRequiredService <ICultureContext>();
IFileCultureInfo fileCultureInfo = httpContext.RequestServices.GetRequiredService <ICultureFileCache>().Get(_requestedCulture, directory, pageName, "cshtml");
if (fileCultureInfo != null)
{
httpContext.RequestServices.GetRequiredService <ILocalizedViewRenderContextAccessor>().Context = new LocalizedViewRenderContext(_requestedCulture, fileCultureInfo.Culture, cultureContext.UrlCultureSpecifier);
string relativePath = fileCultureInfo.RelativePath; // 7 == ".cshtml".Length
if (!relativePath.Equals(this.Page.Path))
{
RazorPageResult pageResult = engine.GetPage(executingFilePath, relativePath);
Page page = (Page)pageResult.Page;
PageContext resultPageContext = pageContext.CreateCopy();
ViewContext resultViewContext = this.Page.ViewContext.CreateCopy();
page.ViewContext = resultViewContext;
resultViewContext.ExecutingFilePath = relativePath;
resultPageContext.ActionDescriptor.PageTypeInfo = page.GetType().GetTypeInfo();
resultPageContext.ActionDescriptor.RelativePath = relativePath;
page.PageContext = resultPageContext;
page.HtmlEncoder = this.Page.HtmlEncoder;
page.Path = relativePath;
this.Page = page;
}
}
else
{
httpContext.RequestServices.GetRequiredService <ILocalizedViewRenderContextAccessor>().Context = new LocalizedViewRenderContext(_requestedCulture, null, cultureContext.UrlCultureSpecifier);
}
var executor = context.HttpContext.RequestServices.GetRequiredService <PageResultExecutor>();
await executor.ExecuteAsync(pageContext, this);
}
/// <summary>
/// 查找Razor页面
/// </summary>
/// <param name="razorViewEngine">Razor视图引擎</param>
/// <param name="actionContext">操作上下文</param>
/// <param name="pageName">页面名称。执行文件路径：/Pages/Components/Forms/Form.cshtml</param>
private IRazorPage FindPage(IRazorViewEngine razorViewEngine, ActionContext actionContext, string pageName)
{
var getPageResult = razorViewEngine.GetPage(null, pageName);
if (getPageResult.Page != null)
{
return(getPageResult.Page);
}
var findPageResult = razorViewEngine.FindPage(actionContext, pageName);
if (findPageResult.Page != null)
{
return(findPageResult.Page);
}
throw new ArgumentNullException($"未找到视图： {pageName}");
}
private IRazorPage FindPage(ActionContext actionContext, string partialName)
{
var getPartialResult = _viewEngine.GetPage(null, partialName);
if (getPartialResult.Page != null)
{
return(getPartialResult.Page);
}
var findPartialResult = _viewEngine.FindPage(actionContext, partialName);
if (findPartialResult.Page != null)
{
return(findPartialResult.Page);
}
var searchedLocations = getPartialResult.SearchedLocations.Concat(findPartialResult.SearchedLocations);
var errorMessage = string.Join(
Environment.NewLine,
new[] { $"Unable to find partial '{partialName}'. The following locations were searched:" }.Concat(searchedLocations));;
throw new InvalidOperationException(errorMessage);
}
