An Incomplete jQuery Experiment with Video Blobs

This CoffeeScript fragment wraps a jQuery plugin around video elements, requests each source as a Blob, and appears to be exploring object URLs as a way to handle the media locally in the browser.

It is an unfinished experiment rather than a working plugin: the success handler refers to videoBlob, which is never assigned from the request, and the generated object URL is only logged rather than attached to the video element. The code is useful as a small historical note on the Blob API, but it needs those missing steps and URL cleanup before it could be used.

(($) ->

  $.fn.deblobber = (options) ->
    $(this).find('video').each ->
      videoURL = $(this).attr('src')

      loadFile = (url) ->
        req = new XMLHttpRequest

        reqSuccess = ->
          if req.readyState == 4 and req.status == 200
            vid = URL.createObjectURL(videoBlob)
            console.log vid
          else
            console.error req.statusText
          return

        reqError = ->
          console.error @statusText
          console.log ':-( error.'
          return

        req.onload = reqSuccess
        req.onerror = reqError
        req.open 'GET', url, true
        req.responseType = 'blob'
        req.send null
        return

      loadFile videoURL
      return
    return

  return
) jQuery