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Contents
# frozen_string_literal: true
module Blacklight
class Component < ViewComponent::Base
class << self
# rubocop:disable Naming/MemoizedInstanceVariableName
def compiler
@__vc_compiler ||= EngineCompiler.new(self)
end
# rubocop:enable Naming/MemoizedInstanceVariableName
end
class EngineCompiler < ::ViewComponent::Compiler
# ViewComponent::Compiler locates and caches templates from sidecar files to the component source file.
# While this is sensible in a Rails application, it prevents component templates defined in an Engine
# from being overridden by an installing application without subclassing the component, which may also
# require modifying any partials rendering the component. This subclass of compiler overrides the template
# location algorithm to take the sidecar file names from the Engine, but look to see if a file of the
# same name existing in the installing application (ie, under Rails.root). If the latter exists, this
# compiler will cache that template instead of the engine-defined file; if not, the compiler will fall
# back to the engine-defined file.
def templates
@templates ||= begin
extensions = ActionView::Template.template_handler_extensions
component_class._sidecar_files(extensions).each_with_object([]) do |path, memo|
pieces = File.basename(path).split(".")
app_path = "#{Rails.root}/#{path.slice(path.index(component_class.view_component_path)..-1)}"
memo << {
path: File.exist?(app_path) ? app_path : path,
variant: pieces.second.split("+").second&.to_sym,
handler: pieces.last
}
end
end
end
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems