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module Banzai
module Filter
# HTML Filter that handles video uploads.
class VideoLinkFilter < HTML::Pipeline::Filter
include ActionView::Helpers::TagHelper
include ActionView::Context
EXTENSIONS = %w(.mov .mp4 .ogg .webm .flv)
def call
doc.search('img').each do |el|
if video?(el)
el.replace video_node(el)
end
end
doc
end
private
def video?(element)
EXTENSIONS.include? File.extname(element.attribute('src').value)
end
# Return a video tag Nokogiri node
#
def video_node(element)
vtag = content_tag(:video, "", {
src: element.attribute('src').value,
class: 'video-js', preload: 'auto',
controls: true
})
Nokogiri::HTML::DocumentFragment.parse(vtag)
end
end
end
end
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