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module Refinery
module ImageHelper
# replace all system images with a thumbnail version of them (handy for all images inside a page part)
# for example, <%= content_fu(@page.content_for(:body), '96x96#c') %> converts all /system/images to a 96x96 cropped thumbnail
def content_fu(content, thumbnail)
content.gsub(%r{<img.+?src=['"](/system/images/.+?)/.+?/>}) do |img|
begin
sha = img.match(%r{/system/images/(.+?)/})[1]
job = Dragonfly::Job.deserialize sha, Dragonfly.app(:refinery_images)
image_fu Image.where(:image_uid => job.uid).first, thumbnail
rescue Dragonfly::Serializer::BadString
img
end
end
end
# image_fu is a helper for inserting an image that has been uploaded into a template.
# Say for example that we had a @model.image (@model having a belongs_to :image relationship)
# and we wanted to display a thumbnail cropped to 200x200 then we can use image_fu like this:
# <%= image_fu @model.image, '200x200' %> or with no thumbnail: <%= image_fu @model.image %>
def image_fu(image, geometry = nil, options = {})
return nil if image.blank?
thumbnail_args = options.slice(:strip)
thumbnail_args[:geometry] = geometry if geometry
image_tag_args = (image.thumbnail_dimensions(geometry) rescue {})
image_tag_args[:alt] = image.respond_to?(:title) ? image.title : image.image_name
image_tag(image.thumbnail(thumbnail_args).url, image_tag_args.merge(options))
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems