protected virtual void ExpandDependencies(ResourceDefinition resource, RequireSettings settings, OrderedDictionary allResources)
{
if (resource == null)
{
return;
}
// Settings is given so they can cascade down into dependencies. For example, if Foo depends on Bar, and Foo's required
// location is Head, so too should Bar's location.
// forge the effective require settings for this resource
// (1) If a require exists for the resource, combine with it. Last settings in gets preference for its specified values.
// (2) If no require already exists, form a new settings object based on the given one but with its own type/name.
settings = allResources.Contains(resource)
? ((RequireSettings)allResources[resource]).Combine(settings)
: new RequireSettings {
Type = resource.Type, Name = resource.Name
}.Combine(settings);
if (resource.Dependencies != null)
{
var dependencies =
from d in resource.Dependencies
select FindResource(new RequireSettings { Type = resource.Type, Name = d });
foreach (var dependency in dependencies)
{
if (dependency == null)
{
continue;
}
ExpandDependencies(dependency, settings, allResources);
}
}
allResources[resource] = settings;
}
public TagBuilder GetTagBuilder(RequireSettings baseSettings, string appPath, IResourceFileHashProvider resourceFileHashProvider)
{
var tagBuilder = new TagBuilder(Resource.TagName);
tagBuilder.MergeAttributes(Resource.TagBuilder.Attributes);
if (!String.IsNullOrEmpty(Resource.FilePathAttributeName))
{
var resolvedUrl = GetResourceUrl(baseSettings, appPath, false, resourceFileHashProvider);
if (!String.IsNullOrEmpty(resolvedUrl))
{
tagBuilder.MergeAttribute(Resource.FilePathAttributeName, resolvedUrl, true);
}
}
return(tagBuilder);
}
public RequireSettings Combine(RequireSettings other)
{
var settings = (new RequireSettings {
Name = Name,
Type = Type
}).AtLocation(Location).AtLocation(other.Location)
.WithBasePath(BasePath).WithBasePath(other.BasePath)
.UseCdn(CdnMode).UseCdn(other.CdnMode)
.UseDebugMode(DebugMode).UseDebugMode(other.DebugMode)
.UseFileHash(FileHashMode).UseFileHash(other.FileHashMode)
.UseCulture(Culture).UseCulture(other.Culture)
.UseCondition(Condition).UseCondition(other.Condition)
.Define(InlineDefinition).Define(other.InlineDefinition);
settings._attributes = MergeAttributes(other);
return(settings);
}
private Dictionary <string, string> MergeAttributes(RequireSettings other)
{
// efficiently merge the two dictionaries, taking into account that one or both may not exist
// and that attributes in 'other' should overridde attributes in this, even if the value is null.
if (_attributes == null)
{
return(other._attributes == null ? null : new Dictionary <string, string>(other._attributes));
}
if (other._attributes == null)
{
return(new Dictionary <string, string>(_attributes));
}
var mergedAttributes = new Dictionary <string, string>(_attributes);
foreach (var pair in other._attributes)
{
mergedAttributes[pair.Key] = pair.Value;
}
return(mergedAttributes);
}
public virtual RequireSettings Require(string resourceType, string resourceName)
{
if (resourceType == null)
{
throw new ArgumentNullException("resourceType");
}
if (resourceName == null)
{
throw new ArgumentNullException("resourceName");
}
RequireSettings settings;
var key = new Tuple <string, string>(resourceType, resourceName);
if (!_required.TryGetValue(key, out settings))
{
settings = new RequireSettings {
Type = resourceType, Name = resourceName
};
_required[key] = settings;
}
_builtResources[resourceType] = null;
return(settings);
}
private ResourceDefinition FindResource(RequireSettings settings, bool resolveInlineDefinitions)
{
// find the resource with the given type and name
// that has at least the given version number. If multiple,
// return the resource with the greatest version number.
// If not found and an inlineDefinition is given, define the resource on the fly
// using the action.
var name = settings.Name ?? "";
var type = settings.Type;
var resource = (from p in ResourceProviders
from r in p.GetResources(type)
where name.Equals(r.Key, StringComparison.OrdinalIgnoreCase)
let version = r.Value.Version != null ? new Version(r.Value.Version) : null
orderby version descending
select r.Value).FirstOrDefault();
if (resource == null && _dynamicManifest != null)
{
resource = (from r in _dynamicManifest.GetResources(type)
where name.Equals(r.Key, StringComparison.OrdinalIgnoreCase)
let version = r.Value.Version != null ? new Version(r.Value.Version) : null
orderby version descending
select r.Value).FirstOrDefault();
}
if (resolveInlineDefinitions && resource == null)
{
// Does not seem to exist, but it's possible it is being
// defined by a Define() from a RequireSettings somewhere.
if (ResolveInlineDefinitions(settings.Type))
{
// if any were defined, now try to find it
resource = FindResource(settings, false);
}
}
return(resource);
}
public string ResolveUrl(RequireSettings settings, string applicationPath, bool ssl, IResourceFileHashProvider resourceFileHashProvider)
{
string url;
string physicalPath = null;
// Url priority:
if (!ssl || (ssl && CdnSupportsSsl)) //Not ssl or ssl and cdn supports it
{
if (settings.DebugMode)
{
url = settings.CdnMode
? Coalesce(UrlCdnDebug, UrlDebug, UrlCdn, Url)
: Coalesce(UrlDebug, Url, UrlCdnDebug, UrlCdn);
}
else
{
url = settings.CdnMode
? Coalesce(UrlCdn, Url, UrlCdnDebug, UrlDebug)
: Coalesce(Url, UrlDebug, UrlCdn, UrlCdnDebug);
}
}
else //ssl and cdn does not support it, only evaluate non-cdn url's
{
url = settings.DebugMode
? Coalesce(UrlDebug, Url)
: Coalesce(Url, UrlDebug);
}
if (url == UrlDebug)
{
physicalPath = PhysicalPathDebug;
}
else if (url == Url)
{
physicalPath = PhysicalPath;
}
if (String.IsNullOrEmpty(url))
{
return(null);
}
if (!String.IsNullOrEmpty(settings.Culture))
{
string nearestCulture = FindNearestCulture(settings.Culture);
if (!String.IsNullOrEmpty(nearestCulture))
{
url = Path.ChangeExtension(url, nearestCulture + Path.GetExtension(url));
}
}
if (!Uri.IsWellFormedUriString(url, UriKind.Absolute) && !VirtualPathUtility.IsAbsolute(url) && !VirtualPathUtility.IsAppRelative(url) && !String.IsNullOrEmpty(BasePath))
{
// relative urls are relative to the base path of the module that defined the manifest
url = VirtualPathUtility.Combine(BasePath, url);
}
if (VirtualPathUtility.IsAppRelative(url))
{
url = applicationPath != null
? VirtualPathUtility.ToAbsolute(url, applicationPath)
: VirtualPathUtility.ToAbsolute(url);
}
if (settings.FileHashMode && !String.IsNullOrEmpty(physicalPath) && File.Exists(physicalPath))
{
url = AddQueryStringValue(url, "fileHash", resourceFileHashProvider.GetResourceFileHash(physicalPath));
}
return(url);
}
public string ResolveUrl(RequireSettings settings, string applicationPath, IResourceFileHashProvider resourceFileHashProvider)
{
return(ResolveUrl(settings, applicationPath, false, resourceFileHashProvider));
}
public virtual ResourceDefinition FindResource(RequireSettings settings)
{
return(FindResource(settings, true));
}
public string GetResourceUrl(RequireSettings baseSettings, string appPath, bool ssl, IResourceFileHashProvider resourceFileHashProvider)
{
return(Resource.ResolveUrl(baseSettings == null ? Settings : baseSettings.Combine(Settings), appPath, ssl, resourceFileHashProvider));
}
