compatibility layer for octopress-hooks users
# File lib/jekyll/hooks.rb, line 82 def self.insert_hook(owner, event, priority, &block) @hook_priority[block] = "#{priority}.#{@hook_priority.size}".to_f @registry[owner][event] << block end
Ensure the priority is a Fixnum
# File lib/jekyll/hooks.rb, line 56 def self.priority_value(priority) return priority if priority.is_a?(Fixnum) PRIORITY_MAP[priority] || DEFAULT_PRIORITY end
register hook(s) to be called later, public API
# File lib/jekyll/hooks.rb, line 49 def self.register(owners, event, priority: DEFAULT_PRIORITY, &block) Array(owners).each do |owner| register_one(owner, event, priority_value(priority), &block) end end
register a single hook to be called later, internal API
# File lib/jekyll/hooks.rb, line 62 def self.register_one(owner, event, priority, &block) @registry[owner] ||={ :post_init => [], :pre_render => [], :post_render => [], :post_write => [] } unless @registry[owner][event] raise NotAvailable, "Invalid hook. #{owner} supports only the " "following hooks #{@registry[owner].keys.inspect}" end unless block.respond_to? :call raise Uncallable, "Hooks must respond to :call" end insert_hook owner, event, priority, &block end
interface for Jekyll core components to trigger hooks
# File lib/jekyll/hooks.rb, line 88 def self.trigger(owner, event, *args) # proceed only if there are hooks to call return unless @registry[owner] return unless @registry[owner][event] # hooks to call for this owner and event hooks = @registry[owner][event] # sort and call hooks according to priority and load order hooks.sort_by { |h| @hook_priority[h] }.each do |hook| hook.call(*args) end end