engine/app/helpers/admin/assets_helper.rb

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module Admin::AssetsHelper
def vignette_tag(asset)
image_tag(asset.vignette_url)
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end
def image_dimensions_and_size(asset)
content_tag(:small, "#{asset.width}px x #{asset.height}px | #{number_to_human_size(asset.size)}")
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end
def allow_plain_text_editing?(asset)
asset.new_record? || asset.stylesheet? || asset.javascript?
end
end