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require 'hanami/view/rendering/null_template'
require 'hanami/view/rendering/templates_finder'
module Hanami
module View
module Rendering
# Holds the references of all the registered layouts.
# As now the registry is unique at the level of the framework.
#
# @api private
# @since 0.1.0
#
# @see Hanami::Layout::ClassMethods#registry
class LayoutRegistry
# Initialize the registry
#
# @param view [Class] the view
#
# @api private
# @since 0.1.0
def initialize(view)
@registry = {}
@view = view
prepare!
end
# Returns the layout for the given context.
#
# @param context [Hash] the rendering context
# @option context [Symbol] :format the requested format
#
# @return [Hanami::Layout, Hanami::View::Rendering::NullTemplate]
# the layout associated with the given context or a `NullTemplate` if
# it can't be found.
#
# @raise [Hanami::View::MissingFormatError] if the given context doesn't
# have the :format key
#
# @api private
# @since 0.1.0
def resolve(context)
@registry.fetch(format(context)) { NullTemplate.new }
end
protected
# @api private
# @since 0.1.0
def prepare!
templates.each do |template|
@registry.merge! template.format => template
end
@registry.any? or raise MissingTemplateLayoutError.new(@view)
end
# @api private
# @since 0.1.0
def templates
TemplatesFinder.new(@view).find
end
# @api private
# @since 0.1.0
def format(context)
context.fetch(:format) { raise MissingFormatError }
end
end
end
end
end
Version data entries
22 entries across 22 versions & 1 rubygems