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Contents
# frozen_string_literal: true
module Blacklight
class Configuration
# This class helps determine whether a specific field/tool should display for a
# particular controller. This is used when the field/tool is configured with an
# _if_ or _unless_ argument.
#
# e.g.
# config.add_results_document_tool(:bookmark,
# partial: 'bookmark_control',
# if: :render_bookmarks_control?)
#
# The context points at the scope for where to evaluate the method _render_bookmarks_control?_
class Context
attr_reader :context
def initialize(context)
@context = context
end
##
# Evaluate conditionals for a configuration with if/unless attributes
#
# @param [#if,#unless] config an object that responds to if/unless
# @return [Boolean]
def evaluate_if_unless_configuration(config, *args)
return config if config == true || config == false
if_value = !config.respond_to?(:if) ||
config.if.nil? ||
evaluate_configuration_conditional(config.if, config, *args)
unless_value = !config.respond_to?(:unless) ||
config.unless.nil? ||
!evaluate_configuration_conditional(config.unless, config, *args)
if_value && unless_value
end
def evaluate_configuration_conditional(proc_helper_or_boolean, *args_for_procs_and_methods)
case proc_helper_or_boolean
when Symbol
arity = context.method(proc_helper_or_boolean).arity
if arity.zero?
context.send(proc_helper_or_boolean)
else
context.send(proc_helper_or_boolean, *args_for_procs_and_methods)
end
when Proc
proc_helper_or_boolean.call context, *args_for_procs_and_methods
else
proc_helper_or_boolean
end
end
end
end
end
Version data entries
21 entries across 21 versions & 2 rubygems