/ in a slide-deck context we assume video should take as much place as possible
/ unless already specified
- no_stretch = ((attr? :width) || (attr? :height))
- width = (attr? :width) ? (attr :width) : "100%"
- height = (attr? :height) ? (attr :height) : "100%"
/ we apply revealjs stretch class to the videoblock take all the place we can
= html_tag('div', { :id => @id, :class => ['videoblock', @style, role, (no_stretch ? nil : 'stretch'), ('fragment' if (option? :step) || (has_role? 'step') || (attr? 'step'))] }.merge(data_attrs(@attributes)))
  - if title?
    .title=captioned_title
  - case attr :poster
  - when 'vimeo'
    - unless (asset_uri_scheme = (attr :asset_uri_scheme, 'https')).empty?
      -  asset_uri_scheme = %(#{asset_uri_scheme}:)
    - start_anchor = (attr? :start) ? "#at=#{attr :start}" : nil
    - delimiter = ['?']
    - loop_param = (option? 'loop') ? %(#{delimiter.pop || '&'}loop=1) : ''
    - muted_param = (option? 'muted') ? %(#{delimiter.pop || '&'}muted=1) : ''
    - src = %(#{asset_uri_scheme}//player.vimeo.com/video/#{attr :target}#{loop_param}#{muted_param}#{start_anchor})
    / We need to delegate autoplay into the iframe starting with Chrome 62 (and other browsers too)
    / See https://developers.google.com/web/updates/2017/09/autoplay-policy-changes#iframe
    iframe(width=(width) height=(height) src=src frameborder=0
      webkitAllowFullScreen=true mozallowfullscreen=true allowFullScreen=true
      data-autoplay=(option? 'autoplay')
      allow=((option? 'autoplay') ? "autoplay" : nil))
  - when 'youtube'
    - unless (asset_uri_scheme = (attr :asset_uri_scheme, 'https')).empty?
      -  asset_uri_scheme = %(#{asset_uri_scheme}:)
    - params = ['rel=0']
    - params << "start=#{attr :start}" if attr? :start
    - params << "end=#{attr :end}" if attr? :end
    - params << "loop=1" if option? 'loop'
    - params << "mute=1" if option? 'muted'
    - params << "controls=0" if option? 'nocontrols'
    - src = %(#{asset_uri_scheme}//www.youtube.com/embed/#{attr :target}?#{params * '&amp;'})
    / We need to delegate autoplay into the iframe starting with Chrome 62 (and other browsers too)
    / See https://developers.google.com/web/updates/2017/09/autoplay-policy-changes#iframe
    iframe(width=(width) height=(height) src=src
      frameborder=0 allowfullscreen=!(option? 'nofullscreen')
      data-autoplay=(option? 'autoplay')
      allow=((option? 'autoplay') ? "autoplay" : nil))
  - else
    video(src=media_uri(attr :target) width=(width) height=(height)
      poster=((attr :poster) ? media_uri(attr :poster) : nil)
      data-autoplay=(option? 'autoplay') controls=!(option? 'nocontrols')
      loop=(option? 'loop'))
      |Your browser does not support the video tag.