mirror of
https://github.com/codeninjasllc/codecombat.git
synced 2024-11-24 08:08:15 -05:00
62 lines
No EOL
1.8 KiB
CoffeeScript
62 lines
No EOL
1.8 KiB
CoffeeScript
# Template for classes with common functions, like hooking into the Mediator.
|
|
utils = require './utils'
|
|
classCount = 0
|
|
makeScopeName = -> "class-scope-#{classCount++}"
|
|
|
|
module.exports = class CocoClass
|
|
subscriptions: {}
|
|
shortcuts: {}
|
|
|
|
# setup/teardown
|
|
|
|
constructor: ->
|
|
@subscriptions = utils.combineAncestralObject(@, 'subscriptions')
|
|
@shortcuts = utils.combineAncestralObject(@, 'shortcuts')
|
|
@listenToSubscriptions()
|
|
@scope = makeScopeName()
|
|
@listenToShortcuts()
|
|
_.extend(@, Backbone.Events) if Backbone?
|
|
|
|
destroy: ->
|
|
# teardown subscriptions, prevent new ones
|
|
@stopListening?()
|
|
@unsubscribeAll()
|
|
@stopListeningToShortcuts()
|
|
@[key] = undefined for key of @
|
|
@destroyed = true
|
|
@destroy = ->
|
|
|
|
# subscriptions
|
|
|
|
listenToSubscriptions: ->
|
|
# for initting subscriptions
|
|
return unless Backbone?.Mediator?
|
|
for channel, func of @subscriptions
|
|
func = utils.normalizeFunc(func, @)
|
|
Backbone.Mediator.subscribe(channel, func, @)
|
|
|
|
addNewSubscription: (channel, func) ->
|
|
# this is for adding subscriptions on the fly, rather than at init
|
|
return unless Backbone?.Mediator?
|
|
return if @destroyed
|
|
return unless @subscriptions[channel] is undefined
|
|
func = utils.normalizeFunc(func, @)
|
|
@subscriptions[channel] = func
|
|
Backbone.Mediator.subscribe(channel, func, @)
|
|
|
|
unsubscribeAll: ->
|
|
for channel, func of @subscriptions
|
|
func = utils.normalizeFunc(func, @)
|
|
Backbone.Mediator.unsubscribe(channel, func, @)
|
|
|
|
# keymaster shortcuts
|
|
|
|
listenToShortcuts: ->
|
|
return unless key?
|
|
for shortcut, func of @shortcuts
|
|
func = utils.normalizeFunc(func, @)
|
|
key(shortcut, @scope, _.bind(func, @))
|
|
|
|
stopListeningToShortcuts: ->
|
|
return unless key?
|
|
key.deleteScope(@scope) |