import Ember from 'ember'

# = number-input numericValue=path.to.numeric_value, taken from mozo
export default Ember.TextField.extend
  type: 'number'
  attributeBindings: ['min', 'max', 'step']
  classNames: ['number-input']
  focusIn: -> @$().select()
  init: ->
    @_super arguments...
    value = @get 'numericValue'
    # value? returns true on 0
    @set 'value', if value? then String(value) else ''
  handle_value_change: Ember.observer 'value', ->
    string_value = @get('value')
    setValue = parseFloat(string_value)
    @set "numericValue", if Number.isFinite(setValue) then setValue else null