`class SlideAssets < Protocol::HTTP::Middleware`

Inherits from: Protocol::HTTP::Middleware

Serves scoped presentation stylesheets and their adjacent assets.

Definitions

`def initialize(delegate, root:, stylesheets:)`

Signature

parameter　delegate　Protocol::HTTP::Middleware: The next middleware.
parameter　root　String: The presentation slides root.
parameter　stylesheets　Proc: Returns the currently discovered stylesheets.

Implementation

def initialize(delegate, root:, stylesheets:)
	super(delegate)
	
	@root = File.realpath(root)
	@stylesheets = stylesheets
end

`def call(request)`

Serve a presentation stylesheet or adjacent asset.

Implementation

def call(request)
	path = request_path(request)
	return super unless path&.start_with?(Stylesheet::PREFIX)
	
	unless request.method == "GET" || request.method == "HEAD"
		return Protocol::HTTP::Response[405, [["allow", "GET, HEAD"]]]
	end
	
	relative_path = decode_path(path.delete_prefix(Stylesheet::PREFIX))
	return Protocol::HTTP::Response[404] unless relative_path
	
	if File.extname(relative_path) == ".css"
		serve_stylesheet(request, relative_path)
	else
		serve_asset(request, relative_path)
	end
end