Sha256: c77c2b03962462eef3a2dc541acc4326bc9b5350ebf537bda76ec2dcdf6b186b
Contents?: true
Size: 1.37 KB
Versions: 11
Compression:
Stored size: 1.37 KB
Contents
class Joosy.Resource.Watcher extends Joosy.Module
@include Joosy.Modules.Events
@cache: (cacheKey) -> @::__cacheKey = cacheKey
@fetcher: (fetcher) -> @::__fetcher = fetcher
@beforeLoad: (action) ->
unless @::hasOwnProperty '__beforeLoads'
@::__beforeLoads = [].concat @.__super__.__beforeLoads || []
@::__beforeLoads.push action
constructor: (cacheKey=false, fetcher=false) ->
if Object.isFunction(cacheKey)
fetcher = cacheKey
cacheKey = undefined
@__fetcher = fetcher if fetcher
@__cacheKey = cacheKey if cacheKey
load: (callback) ->
if @__cacheKey && localStorage[@__cacheKey]
@data = @prepare(JSON.parse localStorage[@__cacheKey])
@trigger 'changed'
@refresh()
callback? @
else
@__fetcher (result) =>
localStorage[@__cacheKey] = JSON.stringify(result) if @__cacheKey
@data = @prepare result
@trigger 'changed'
callback? @
clone: ->
copy = new @constructor(@__cacheKey, @__fetcher)
copy.data = Object.clone(@data, true)
copy.trigger 'changed'
copy
refresh: (callback) ->
@__fetcher (result) =>
localStorage[@__cacheKey] = JSON.stringify(result) if @__cacheKey
@data = @prepare result
@trigger 'changed'
callback? @
prepare: (data) ->
if @__beforeLoads?
data = bl.call(this, data) for bl in @__beforeLoads
data
Version data entries
11 entries across 11 versions & 1 rubygems