/// <summary>
/// 执行形状。
/// </summary>
/// <param name="shape">形状。</param>
/// <returns>形状结果。</returns>
public object ShapeExecute(object shape)
{
if (shape == null)
{
return(new HtmlString(string.Empty));
}
var context = new DisplayContext {
Display = this, Value = shape, ViewContext = ViewContext, ViewDataContainer = ViewDataContainer
};
return(_displayManager.Execute(context));
}
private IHtmlString PerformInvoke(DisplayContext displayContext, MethodInfo methodInfo, object serviceInstance)
{
var output = new HtmlStringWriter();
var arguments = methodInfo.GetParameters()
.Select(parameter => BindParameter(displayContext, parameter, output));
var returnValue = methodInfo.Invoke(serviceInstance, arguments.ToArray());
if (methodInfo.ReturnType != typeof(void))
{
output.Write(CoerceHtmlString(returnValue));
}
return output;
}
private object BindParameter(DisplayContext displayContext, ParameterInfo parameter, TextWriter output)
{
if (parameter.Name == "Shape")
return displayContext.Value;
if (parameter.Name == "Display")
return displayContext.Display;
if (parameter.Name == "Output" && parameter.ParameterType == typeof(TextWriter))
return output;
if (parameter.Name == "Output" && parameter.ParameterType == typeof(Action<object>))
return new Action<object>(output.Write);
if (parameter.Name == "Html")
{
return new HtmlHelper(
displayContext.ViewContext,
displayContext.ViewDataContainer,
_routeCollection);
}
if (parameter.Name == "Url" && parameter.ParameterType.IsAssignableFrom(typeof(UrlHelper)))
{
return new UrlHelper(displayContext.ViewContext.RequestContext, _routeCollection);
}
var getter = Getters.GetOrAdd(parameter.Name, n =>
CallSite<Func<CallSite, object, dynamic>>.Create(
Microsoft.CSharp.RuntimeBinder.Binder.GetMember(
CSharpBinderFlags.None, n, null, new[] { CSharpArgumentInfo.Create(CSharpArgumentInfoFlags.None, null) })));
var result = getter.Target(getter, displayContext.Value);
if (result == null)
return null;
var converter = Converters.GetOrAdd(parameter.ParameterType, CompileConverter);
var argument = converter.Invoke(result);
return argument;
}
public IHtmlString Execute(DisplayContext context)
{
var shape = ConvertAsShapeCallsite.Target(ConvertAsShapeCallsite, context.Value);
if (shape == null)
return CoerceHtmlString(context.Value);
var shapeMetadata = shape.Metadata;
if (shapeMetadata == null || string.IsNullOrEmpty(shapeMetadata.Type))
return CoerceHtmlString(context.Value);
var workContext = _workContextAccessor.GetContext();
var shapeTable = _httpContextAccessor.Current() != null
? _shapeTableLocator.Value.Lookup(workContext.GetCurrentTheme().Id)
: _shapeTableLocator.Value.Lookup(null);
var displayingContext = new ShapeDisplayingContext
{
Shape = shape,
ShapeMetadata = shapeMetadata
};
_shapeDisplayEvents.Invoke(sde => sde.Displaying(displayingContext), Logger);
ShapeBinding shapeBinding;
if (TryGetDescriptorBinding(shapeMetadata.Type, Enumerable.Empty<string>(), shapeTable, out shapeBinding))
{
shapeBinding.ShapeDescriptor.Displaying.Invoke(action => action(displayingContext), Logger);
shapeMetadata.BindingSources = shapeBinding.ShapeDescriptor.BindingSources.Where(x => x != null).ToList();
if (!shapeMetadata.BindingSources.Any())
{
shapeMetadata.BindingSources.Add(shapeBinding.ShapeDescriptor.BindingSource);
}
}
shapeMetadata.Displaying.Invoke(action => action(displayingContext), Logger);
if (displayingContext.ChildContent != null)
{
shape.Metadata.ChildContent = displayingContext.ChildContent;
}
else
{
ShapeBinding actualBinding;
if (TryGetDescriptorBinding(shapeMetadata.Type, shapeMetadata.Alternates, shapeTable, out actualBinding))
{
shape.Metadata.ChildContent = Process(actualBinding, shape, context);
}
else
{
throw new RabbitException(T("找不到形状类型 {0}", shapeMetadata.Type));
}
}
foreach (var frameType in shape.Metadata.Wrappers)
{
ShapeBinding frameBinding;
if (TryGetDescriptorBinding(frameType, Enumerable.Empty<string>(), shapeTable, out frameBinding))
{
shape.Metadata.ChildContent = Process(frameBinding, shape, context);
}
}
var displayedContext = new ShapeDisplayedContext
{
Shape = shape,
ShapeMetadata = shape.Metadata,
ChildContent = shape.Metadata.ChildContent,
};
_shapeDisplayEvents.Invoke(sde =>
{
var prior = displayedContext.ChildContent = displayedContext.ShapeMetadata.ChildContent;
sde.Displayed(displayedContext);
if (prior != displayedContext.ChildContent)
displayedContext.ShapeMetadata.ChildContent = displayedContext.ChildContent;
}, Logger);
if (shapeBinding != null)
{
shapeBinding.ShapeDescriptor.Displayed.Invoke(action =>
{
var prior = displayedContext.ChildContent = displayedContext.ShapeMetadata.ChildContent;
action(displayedContext);
if (prior != displayedContext.ChildContent)
displayedContext.ShapeMetadata.ChildContent = displayedContext.ChildContent;
}, Logger);
}
shapeMetadata.Displayed.Invoke(action => action(displayedContext), Logger);
return shape.Metadata.ChildContent;
}
private static IHtmlString Process(ShapeBinding shapeBinding, IShape shape, DisplayContext context)
{
if (shapeBinding == null || shapeBinding.Binding == null)
{
return shape.Metadata.ChildContent ?? new HtmlString(string.Empty);
}
return CoerceHtmlString(shapeBinding.Binding(context));
}
private IHtmlString RenderRazorViewToString(string path, DisplayContext context)
{
using (var sw = new StringWriter())
{
var controllerContext = CreateControllerContext();
var viewResult = _viewEngine.Value.FindPartialView(controllerContext, path, false);
context.ViewContext.ViewData = new ViewDataDictionary(context.Value);
context.ViewContext.TempData = new TempDataDictionary();
viewResult.View.Render(context.ViewContext, sw);
viewResult.ViewEngine.ReleaseView(controllerContext, viewResult.View);
return new HtmlString(sw.GetStringBuilder().ToString());
}
}
private IHtmlString Render(DisplayContext displayContext, HarvestShapeInfo harvestShapeInfo)
{
Logger.Information("渲染模板文件 '{0}'", harvestShapeInfo.TemplateVirtualPath);
IHtmlString result;
if (displayContext.ViewContext.View != null)
{
var htmlHelper = new HtmlHelper(displayContext.ViewContext, displayContext.ViewDataContainer);
result = htmlHelper.Partial(harvestShapeInfo.TemplateVirtualPath, displayContext.Value);
}
else
{
//如果视图为空，则表示该造型是从一个非视图产地/在没有的ViewContext成立了由视图引擎，但是手动执行。
//手动创建的ViewContext工程与形状的方法工作时，而不是当形状被实现为一个Razor视图模板。
//可怕的，但它会做现在。
result = RenderRazorViewToString(harvestShapeInfo.TemplateVirtualPath, displayContext);
}
Logger.Information("完成目标文件 '{0}' 的渲染。", harvestShapeInfo.TemplateVirtualPath);
return result;
}
/// <summary>
/// 执行形状。
/// </summary>
/// <param name="shape">形状。</param>
/// <returns>形状结果。</returns>
public object ShapeExecute(object shape)
{
if (shape == null)
{
return new HtmlString(string.Empty);
}
var context = new DisplayContext { Display = this, Value = shape, ViewContext = ViewContext, ViewDataContainer = ViewDataContainer };
return _displayManager.Execute(context);
}
public IHtmlString Execute(DisplayContext context)
{
var shape = ConvertAsShapeCallsite.Target(ConvertAsShapeCallsite, context.Value);
if (shape == null)
{
return(CoerceHtmlString(context.Value));
}
var shapeMetadata = shape.Metadata;
if (shapeMetadata == null || string.IsNullOrEmpty(shapeMetadata.Type))
{
return(CoerceHtmlString(context.Value));
}
var workContext = _workContextAccessor.GetContext();
var shapeTable = _httpContextAccessor.Current() != null
? _shapeTableLocator.Value.Lookup(workContext.GetCurrentTheme().Id)
: _shapeTableLocator.Value.Lookup(null);
var displayingContext = new ShapeDisplayingContext
{
Shape = shape,
ShapeMetadata = shapeMetadata
};
_shapeDisplayEvents.Invoke(sde => sde.Displaying(displayingContext), Logger);
ShapeBinding shapeBinding;
if (TryGetDescriptorBinding(shapeMetadata.Type, Enumerable.Empty <string>(), shapeTable, out shapeBinding))
{
shapeBinding.ShapeDescriptor.Displaying.Invoke(action => action(displayingContext), Logger);
shapeMetadata.BindingSources = shapeBinding.ShapeDescriptor.BindingSources.Where(x => x != null).ToList();
if (!shapeMetadata.BindingSources.Any())
{
shapeMetadata.BindingSources.Add(shapeBinding.ShapeDescriptor.BindingSource);
}
}
shapeMetadata.Displaying.Invoke(action => action(displayingContext), Logger);
if (displayingContext.ChildContent != null)
{
shape.Metadata.ChildContent = displayingContext.ChildContent;
}
else
{
ShapeBinding actualBinding;
if (TryGetDescriptorBinding(shapeMetadata.Type, shapeMetadata.Alternates, shapeTable, out actualBinding))
{
shape.Metadata.ChildContent = Process(actualBinding, shape, context);
}
else
{
throw new RabbitException(T("找不到形状类型 {0}", shapeMetadata.Type));
}
}
foreach (var frameType in shape.Metadata.Wrappers)
{
ShapeBinding frameBinding;
if (TryGetDescriptorBinding(frameType, Enumerable.Empty <string>(), shapeTable, out frameBinding))
{
shape.Metadata.ChildContent = Process(frameBinding, shape, context);
}
}
var displayedContext = new ShapeDisplayedContext
{
Shape = shape,
ShapeMetadata = shape.Metadata,
ChildContent = shape.Metadata.ChildContent,
};
_shapeDisplayEvents.Invoke(sde =>
{
var prior = displayedContext.ChildContent = displayedContext.ShapeMetadata.ChildContent;
sde.Displayed(displayedContext);
if (prior != displayedContext.ChildContent)
{
displayedContext.ShapeMetadata.ChildContent = displayedContext.ChildContent;
}
}, Logger);
if (shapeBinding != null)
{
shapeBinding.ShapeDescriptor.Displayed.Invoke(action =>
{
var prior = displayedContext.ChildContent = displayedContext.ShapeMetadata.ChildContent;
action(displayedContext);
if (prior != displayedContext.ChildContent)
{
displayedContext.ShapeMetadata.ChildContent = displayedContext.ChildContent;
}
}, Logger);
}
shapeMetadata.Displayed.Invoke(action => action(displayedContext), Logger);
return(shape.Metadata.ChildContent);
}
