Sha256: 8c9b5cc9525c0ec565fddc55283c01281463fd476581c51d7d3402ad4492797a
Contents?: true
Size: 950 Bytes
Versions: 14
Compression:
Stored size: 950 Bytes
Contents
class Lanes.Views.ModelObserver extends Lanes.Models.State
modelEvents: {}
constructor: (@view, @keypath='model')->
super
@view.on( "change:#{@keypath}", this.rebindModel, this )
@view.on( "remove", this.teardown, this )
this.rebindModel()
getModel: ->
@cached_model ||= Lanes.u.getPath(@keypath, @view)
unBindModel: (model)->
for event, fn of @modelEvents
model.off(event, this[fn], this )
bindModel: (model)->
for event, fn of @modelEvents
model.on(event, this[fn], this )
rebindModel: ->
@cached_model=null
old_model = @view.previous(@keypath)
new_model = this.getModel()
return if old_model == new_model
this.unBindModel( old_model ) if old_model
this.bindModel( new_model ) if new_model
teardown: ->
this.unBindModel( model ) if model = this.getModel()
Version data entries
14 entries across 14 versions & 1 rubygems