fluid_videos.coffee

class FluidVideos
  @init: (container=null, $videos=null) ->
    $videos ||= $("iframe[src*='vimeo.com'], iframe[src*='youtube.com']")

    $videos.each ->
      $(this)
        .data('aspectRatio', this.height/this.width)
        .removeAttr('height')
        .removeAttr('width')

    $(window).resize ->
      $videos.each ->
        $elm = $(this)
        $parent = if container then $(container) else $elm.parent()
        newWidth = $parent.width()
        $elm
          .width(newWidth)
          .height(newWidth * $elm.data('aspectRatio'))

    $(window).resize()