How to make Omniauth work with a popup window?

Question

The default for Omniauth works beautifully if you are opening it in the existing window, but not sure how it works in a popup context, and you are handling a large part of the interactions via javascript

Answer 1

Seems like you could do this yourself?

When user clicks 'login via facebook' - use JS to pop open a window with a location of /auth/facebook. The 'callback' will just route back to /auth/callback in this same window. Once you've done your work with the callback, close the current window and refresh the parent?

Answer 2

var newwindow;
function login(provider_url, width, height) {
  var screenX     = typeof window.screenX != 'undefined' ? window.screenX : window.screenLeft,
      screenY     = typeof window.screenY != 'undefined' ? window.screenY : window.screenTop,
      outerWidth  = typeof window.outerWidth != 'undefined' ? window.outerWidth : document.body.clientWidth,
      outerHeight = typeof window.outerHeight != 'undefined' ? window.outerHeight : (document.body.clientHeight - 22),
      left        = parseInt(screenX + ((outerWidth - width) / 2), 10),
      top         = parseInt(screenY + ((outerHeight - height) / 2.5), 10),
      features    = ('width=' + width + ',height=' + height + ',left=' + left + ',top=' + top);

      newwindow = window.open(provider_url, 'Login', features);

  if (window.focus)
    newwindow.focus();

  return false;
}

Replace provider_url with '/auth/facebook' or '/auth/twitter' should work.

At your callback url,

<script type="text/javascript">
  window.opener.location = '<%= @redirect_to %>';
  window.close();
</script>

You can refresh the page however you want with @redirect_to pointing to the page where your parent window should be refreshed to.