     direction = node.getBoundingClientRect()[directionStyle]
 
     pos = coordinate - direction - grab
-    value = this.getValueFromPosition(pos)
+    value = @getValueFromPosition(pos)
 
     return value
 

      return if not isEditable
      # first copy state value to model if we were editing
      if @state["editing-#{property}"]
        newValue = parseInt ReactDOM.findDOMNode(this.refs.focusable)?.value
        if newValue? then @updateRange property, newValue
      @setState "editing-#{property}": not @state["editing-#{property}"], ->
        this.refs.focusable?.focus()

    keyDown = (evt) ->
      if evt.key is 'Enter'

    window.removeEventListener 'resize', @handleUpdate

  handleUpdate: ->
    { orientation } = @props
    dimension = constants.orientation[orientation].dimension
    dimension = dimension.charAt(0).toUpperCase() + dimension.substr(1)
    sliderPos = @slider["offset#{dimension}"]
    handlePos = @handle?["offset#{dimension}"] or 0

    @setState
      limit: sliderPos - handlePos
