public HtmlHandlerWrapper( IHtmlHandler handler )
{
if ( handler == null )
throw new ArgumentNullException( "handler" );
_handler = handler;
}
/// <summary>
/// 派生类重写此方法接管 HTTP 请求处理流程
/// </summary>
/// <param name="context">当前 HTML 请求上下文</param>
/// <param name="handler">用于处理 HTML 文档的处理程序</param>
/// <returns>处理后的结果</returns>
protected virtual ICachedResponse ProcessRequest(HtmlRequestContext context, IHtmlHandler handler)
{
var filters = GetFilters(context.VirtualPath);
OnProcessing(context, filters);
Trace("Begin process document.");
handler.ProcessScope(context);
Trace("End process document.");
OnProcessed(context, filters);
OnRendering(context, filters);
Trace("Begin render document.");
string content;
using (StringWriter writer = new StringWriter())
{
context.Scope.RenderChilds(writer, GetAdapters(handler));
content = writer.ToString();
}
Trace("End render document.");
OnRendered(context, filters);
return(CreateResponse(content));
}
/// <summary>
/// 创建 RequestMapping 对象
/// </summary>
/// <param name="mapper">产生此结果的映射器</param>
/// <param name="virtualPath">HTML 模版路径</param>
/// <param name="handler">HTML 文档处理程序</param>
public RequestMapping( IRequestMapper mapper, string virtualPath, IHtmlHandler handler )
{
if ( !VirtualPathUtility.IsAppRelative( virtualPath ) )
throw new ArgumentException( "模版文件路径只能使用应用程序根相对路径，即以~/开头的路径，调用VirtualPathUtility.ToAppRelative方法或使用HttpRequest.AppRelativeCurrentExecutionFilePath属性获取", "templatePath" );
VirtualPath = virtualPath;
Handler = handler;
}
public HttpHandler(IHtmlHandler handler)
{
if (handler == null)
{
throw new ArgumentNullException("handler");
}
_handler = handler;
}
/// <summary>
/// 创建 RequestMapping 对象
/// </summary>
///
/// <param name="templatePath">HTML 模版路径</param>
/// <param name="handler">HTML 文档处理程序</param>
public RequestMapping(IRequestMapper mapper, string templatePath, IHtmlHandler handler)
{
if (!VirtualPathUtility.IsAppRelative(templatePath))
{
throw new ArgumentException("模版文件路径只能使用应用程序根相对路径，即以~/开头的路径，调用VirtualPathUtility.ToAppRelative方法或使用HttpRequest.AppRelativeCurrentExecutionFilePath属性获取", "templatePath");
}
TemplatePath = templatePath;
Handler = handler;
}
/// <summary>
/// 获取 HTML 处理程序
/// </summary>
/// <param name="virtualPath">要处理的 HTML 文档的虚拟路径</param>
/// <returns>HTML 处理程序</returns>
protected virtual IHtmlHandler GetHandler(string virtualPath)
{
IHtmlHandler handler = null;
if (RequestContext != null)
{
handler = RequestContext.RouteData.DataTokens[JumonyRequestRoute.HtmlHandlerToken] as IHtmlHandler;
RequestContext.RouteData.DataTokens.Remove(JumonyRequestRoute.HtmlHandlerToken);
}
return(handler ?? HtmlHandlerProvider.GetHandler(virtualPath));
}
/// <summary>
/// 派生类调用创建 RequestMapping 对象
/// </summary>
/// <param name="mapper">请求映射器</param>
/// <param name="handler">HTML 文档处理程序</param>
protected RequestMapping(IRequestMapper mapper, IHtmlHandler handler)
{
Mapper = mapper;
Handler = handler;
}
/// <summary>
/// 为现有的 IHtmlHandler 对象创建 ViewHandler 包装
/// </summary>
/// <param name="handler">现有的 IHtmlHandler 对象</param>
public HtmlViewHandlerWrapper(IHtmlHandler handler)
{
_handler = handler;
}
/// <summary>
/// 为现有的 IHtmlHandler 对象创建 ViewHandler 包装
/// </summary>
/// <param name="handler">现有的 IHtmlHandler 对象</param>
public HtmlViewHandlerWrapper( IHtmlHandler handler )
{
_handler = handler;
}
/// <summary>
/// 渲染部分视图
/// </summary>
/// <param name="context">当前 HTTP 请求上下文</param>
/// <param name="virtualPath">当前要处理的部分视图的虚拟路径</param>
/// <param name="handler">当前部分视图的 HTML 处理程序</param>
/// <returns>渲染结果</returns>
public string RenderPartial(HttpContextBase context, string virtualPath, IHtmlHandler handler)
{
_context = context;
return(ProcessRequest(new HtmlRequestContext(context, virtualPath, CreateScope(virtualPath)), handler).CastTo <PartialResponse>().Content);
}
/// <summary>
/// 渲染部分视图
/// </summary>
/// <param name="context">当前 HTTP 请求上下文</param>
/// <param name="virtualPath">当前要处理的部分视图的虚拟路径</param>
/// <param name="handler">当前部分视图的 HTML 处理程序</param>
/// <returns>渲染结果</returns>
public string RenderPartial( HttpContextBase context, string virtualPath, IHtmlHandler handler )
{
_context = context;
return ProcessRequest( new HtmlRequestContext( context, virtualPath, CreateScope( virtualPath ) ), handler ).CastTo<PartialResponse>().Content;
}
/// <summary>
/// 派生类重写此方法接管 HTTP 请求处理流程
/// </summary>
/// <param name="context">当前 HTML 请求上下文</param>
/// <param name="handler">用于处理 HTML 文档的处理程序</param>
/// <returns>处理后的结果</returns>
protected virtual ICachedResponse ProcessRequest( HtmlRequestContext context, IHtmlHandler handler )
{
var filters = GetFilters( context.VirtualPath );
OnProcessing( context, filters );
Trace( "Begin process document." );
handler.ProcessScope( context );
Trace( "End process document." );
OnProcessed( context, filters );
OnRendering( context, filters );
Trace( "Begin render document." );
string content;
using ( StringWriter writer = new StringWriter() )
{
context.Scope.RenderChilds( writer, GetAdapters( handler ) );
content = writer.ToString();
}
Trace( "End render document." );
OnRendered( context, filters );
return CreateResponse( content );
}