module AmpImageTagHelper
Public Instance Methods
amp_image_tag(source, opts = {})
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# File lib/amp_helper/amp_image_tag_helper.rb, line 2 def amp_image_tag(source, opts = {}) has_dimensions = (opts[:width] && opts[:height]) || opts[:size] set_dimensions(source, opts) if !has_dimensions set_scrset(source, opts) image_tag_to_amp(image_tag(source, opts)) end
Private Instance Methods
image_tag_to_amp(img_tag)
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# File lib/amp_helper/amp_image_tag_helper.rb, line 11 def image_tag_to_amp(img_tag) img_tag.gsub(/^<img/, '<amp-img').gsub(/>$/, '></amp-img>').html_safe end
set_dimensions(source, opts)
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# File lib/amp_helper/amp_image_tag_helper.rb, line 15 def set_dimensions(source, opts) if source.kind_of?(CarrierWave::Uploader::Base) && !source.class.processors.empty? opts[:width], opts[:height] = source.class.processors[0][1] else opts[:width], opts[:height] = FastImage.size(source.to_s) end end
set_scrset(source, opts)
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# File lib/amp_helper/amp_image_tag_helper.rb, line 24 def set_scrset(source, opts) if source.kind_of?(CarrierWave::Uploader::Base) && !source.class.processors.empty? && format_2x = (opts.delete(:format_2x) || AmpHelper.configuration.format_2x) name_2x = format_2x % source.version_name opts[:srcset] = "#{source.parent_version.send(name_2x).url} 2x" end end