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Contents
module Spree
module ThemeSupport
# Listener class used for views hooks.
class HookListener
include Singleton
attr_accessor :hook_modifiers
def initialize
@hook_modifiers = []
end
def modifiers_for_hook(hook_name)
hook_modifiers.select{|hm| hm.hook_name == hook_name}
end
# Replace contents of hook_name using supplied render args or string returned from block
def self.replace(hook_name, options = {}, &block)
add_hook_modifier(hook_name, :replace, options, &block)
end
# Insert before existing contents of hook_name using supplied render args or string returned from block
def self.insert_before(hook_name, options = {}, &block)
add_hook_modifier(hook_name, :insert_before, options, &block)
end
# Insert after existing contents of hook_name using supplied render args or string returned from block
def self.insert_after(hook_name, options = {}, &block)
add_hook_modifier(hook_name, :insert_after, options, &block)
end
# Clear contents of hook_name
def self.remove(hook_name)
add_hook_modifier(hook_name, :replace)
end
private
def self.add_hook_modifier(hook_name, action, options = {}, &block)
if block
renderer = lambda do |template, locals|
template.controller.render_to_string(:inline => yield, :locals => locals)
end
else
if options.empty?
renderer = nil
else
renderer = lambda do |template, locals|
render_args = [options]
if options.is_a?(Hash)
options[:locals] = locals
else
render_args << locals
end
template.render(*render_args)
end
end
end
instance.hook_modifiers << HookModifier.new(hook_name, action, renderer)
end
end
end
end
Version data entries
28 entries across 28 versions & 6 rubygems