Reactive property mixin for meteor

property_mixin.coffee

@PropertyMixin =
  property: (prop, options) ->
    Object.defineProperty @prototype, prop, options

  reactiveProperty: (name) ->
    @property name,

      get: ->
        dep = @["_#{name}_dep"] ?= new Tracker.Dependency
        dep.depend()
        @["_#{name}"]

      set: (v) ->
        dep = @["_#{name}_dep"] ?= new Tracker.Dependency
        @["_#{name}"] = v
        dep.changed()
        v