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middleman--middleman/lib/middleman/features/automatic_image_sizes.rb

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1.1 KiB
Ruby
Executable file

class Middleman::Features::AutomaticImageSizes
def initialize(app)
require "middleman/features/automatic_image_sizes/fastimage"
Middleman::Base.send :alias_method, :pre_automatic_image_tag, :image_tag
Middleman::Base.helpers do
def image_tag(path, params={})
if (!params[:width] || !params[:height]) && !path.include?("://")
params[:alt] ||= ""
http_prefix = settings.http_images_path rescue settings.images_dir
begin
real_path = File.join(settings.public, settings.images_dir, path)
if File.exists? real_path
dimensions = Middleman::FastImage.size(real_path, :raise_on_failure => true)
params[:width] ||= dimensions[0]
params[:height] ||= dimensions[1]
end
rescue
end
capture_haml { haml_tag(:img, params.merge(:src => asset_url(path, http_prefix))) }
else
pre_automatic_image_tag(path, params)
end
end
end
end
end
Middleman::Features.register :automatic_image_sizes, Middleman::Features::AutomaticImageSizes