protected FlowStepComponent(
string viewName,
IPlatformSettings platformSettings,
string customLoadingViewName = null,
[CallerFilePath] string componentPath = null)
: this($"~{GetCustomViewPath(componentPath, viewName, "cshtml")}")
{
PlatformSettings = platformSettings;
UpdateCachedLoaderView();
SetComponentId();
_loadingViewContent = new Lazy <string>(() =>
{
string customLoadingViewFullPath = null;
if (customLoadingViewName != null)
{
customLoadingViewFullPath = GetCustomViewPath(componentPath, customLoadingViewName).TrimStart('~', '/');
}
return(customLoadingViewFullPath != null
? ResolveView(customLoadingViewFullPath)
: string.Empty);
});
void SetComponentId()
{
var componentPrefix = ViewName.Replace(".cshtml", string.Empty, StringComparison.InvariantCultureIgnoreCase)
.Replace('\\', '_')
.Replace('/', '_')
.Replace('~', '_')
.Replace('.', '_')
.TrimStart('_');
ComponentId = $"{componentPrefix}_{Guid.NewGuid()}";
}
string ResolveView(string customLoadingViewFullPath)
{
#if DEBUG || FRAMEWORKDEVELOPMENT
//so it can be changed in the same debugging session
return(DoResolve());
#else
return(LoadingViewsCache.GetOrAdd(customLoadingViewFullPath, k => DoResolve()));
#endif
string DoResolve()
{
var path = Path.Combine(HttpContext.Resolve <IWebHostEnvironment>().ContentRootPath,
customLoadingViewFullPath);
if (!File.Exists(path))
{
Logger.Error(() => $"Could not find loading view at :{path}");
return(string.Empty);
}
return(File.ReadAllText(path).Replace("\"~/", $"\"{HttpContext.GetBaseUrl()}"));
}
}
void UpdateCachedLoaderView()
{
if (platformSettings.DeferredComponentLoaderViewEmbeddedResourceName != null &&
Template.Key != platformSettings.DeferredComponentLoaderViewEmbeddedResourceName)
{
var textResource = EmbeddedResourceReader.ReadTextResource(
platformSettings.DeferredComponentLoaderViewEmbeddedResourceName,
GetType().Assembly);
Template = new KeyValuePair <string, string>(
platformSettings.DeferredComponentLoaderViewEmbeddedResourceName,
textResource);
}
}
}
