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require "rails"
require "action_cable"
require "action_cable/helpers/action_cable_helper"
require "active_support/core_ext/hash/indifferent_access"
module ActionCable
class Engine < Rails::Engine # :nodoc:
config.action_cable = ActiveSupport::OrderedOptions.new
config.action_cable.mount_path = ActionCable::INTERNAL[:default_mount_path]
config.eager_load_namespaces << ActionCable
initializer "action_cable.helpers" do
ActiveSupport.on_load(:action_view) do
include ActionCable::Helpers::ActionCableHelper
end
end
initializer "action_cable.logger" do
ActiveSupport.on_load(:action_cable) { self.logger ||= ::Rails.logger }
end
initializer "action_cable.set_configs" do |app|
options = app.config.action_cable
options.allowed_request_origins ||= "http://localhost:3000" if ::Rails.env.development?
app.paths.add "config/cable", with: "config/cable.yml"
ActiveSupport.on_load(:action_cable) do
if (config_path = Pathname.new(app.config.paths["config/cable"].first)).exist?
self.cable = Rails.application.config_for(config_path).with_indifferent_access
end
previous_connection_class = self.connection_class
self.connection_class = -> { 'ApplicationCable::Connection'.safe_constantize || previous_connection_class.call }
options.each { |k,v| send("#{k}=", v) }
end
end
initializer "action_cable.routes" do
config.after_initialize do |app|
config = app.config
unless config.action_cable.mount_path.nil?
app.routes.prepend do
mount ActionCable.server => config.action_cable.mount_path, internal: true
end
end
end
end
initializer "action_cable.set_work_hooks" do |app|
ActiveSupport.on_load(:action_cable) do
ActionCable::Server::Worker.set_callback :work, :around, prepend: true do |_, inner|
app.executor.wrap do
# If we took a while to get the lock, we may have been halted
# in the meantime. As we haven't started doing any real work
# yet, we should pretend that we never made it off the queue.
unless stopping?
inner.call
end
end
end
wrap = lambda do |_, inner|
app.executor.wrap(&inner)
end
ActionCable::Channel::Base.set_callback :subscribe, :around, prepend: true, &wrap
ActionCable::Channel::Base.set_callback :unsubscribe, :around, prepend: true, &wrap
app.reloader.before_class_unload do
ActionCable.server.restart
end
end
end
end
end
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