public override bool Equals(ClientScriptResource x, ClientScriptResource y)
{
if (ReferenceEquals(x, y))
{
return(true);
}
if (ReferenceEquals(x, null) || ReferenceEquals(y, null))
{
return(false);
}
return(ClientScriptResourceHandler
.GetKeys(new[] { x })
.Select(keyedResource => keyedResource.Key)
.Intersect(
ClientScriptResourceHandler
.GetKeys(new[] { y })
.Select(keyedResource => keyedResource.Key),
KeyComparer)
.Any());
}
public string RenderDeferredResources(HttpContextBase httpContext)
{
// Build an unordered dictionary of known resources
var knownResources = ClientScriptResourceHandler
.GetKeys(
GetOrderedResourceCollection(httpContext)
.Select(orderedResource => orderedResource.Resource)
.Distinct(ResourceEqualityComparer))
.ToDictionary(
keyedResource => keyedResource.Key,
keyedResource => keyedResource.Resource,
StringComparer.OrdinalIgnoreCase);
// Build a map of resources and their dependencies.
// Use a known dependency if we have it, otherwise treat it
// as a generic ScriptReferenceClientResource.
var dependencyMap = GetOrderedResourceCollection(httpContext)
.ToDictionary(
orderedResource => orderedResource.Resource,
orderedResource => orderedResource
.Resource
.Dependencies
.Where(requirement => !string.IsNullOrWhiteSpace(requirement))
.Select(requirement => knownResources.ContainsKey(requirement)
? knownResources[requirement]
: new ScriptReferenceClientResource(requirement)));
// Build a dependency graph and apply a topological sort to get a "dependency ordered" list.
var dependencyGraph = DependencyGraphProvider.CreateDependencyGraph(dependencyMap, ResourceEqualityComparer);
var sortedResources = DependencyGraphProvider.TopologicalSort(dependencyGraph, ResourceEqualityComparer);
// Render out the resources in the sorted order.
return(string.Join(
Environment.NewLine,
ClientScriptResourceHandler.Render(sortedResources, RenderMode.Deferred)));
}
