Module: Locomotive::Dragonfly

Defined in:
lib/locomotive/dragonfly.rb,
lib/locomotive/dragonfly/processors/smart_thumb.rb

Defined Under Namespace

Modules: Processors

Class Method Summary collapse

Class Method Details

.app ⇒ Object 



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# File 'lib/locomotive/dragonfly.rb', line 51

def self.app
  ::Dragonfly.app(:engine)
end

.fetch_file(source) ⇒ Object 



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# File 'lib/locomotive/dragonfly.rb', line 26

def self.fetch_file(source)
  file = nil

  if source.is_a?(String) || source.is_a?(Hash) # simple string or drop
    source = source['url'] if source.is_a?(Hash)

    source = clean_source(source)

    if source =~ /^http/
      file = self.app.fetch_url(source)
    else
      file = self.app.fetch_file(File.join('public', source))
    end

  elsif source.respond_to?(:url) # carrierwave uploader
    if source.path.first == '/'
      file = self.app.fetch_file(source.path)
    else
      file = self.app.fetch_url(source.url)
    end
  end

  file
end

.resize_url(source, resize_string, timestamp = nil) ⇒ Object 



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# File 'lib/locomotive/dragonfly.rb', line 6

def self.resize_url(source, resize_string, timestamp = nil)
  if file = self.fetch_file(source)
    url = file.thumb(resize_string).url
    timestamp ? url + "?#{timestamp}" : url
  else
    Locomotive.log :error, "Unable to resize on the fly: #{source.inspect}"
    return
  end
end

.thumbnail_pdf(source, resize_string, timestamp = nil) ⇒ Object 



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# File 'lib/locomotive/dragonfly.rb', line 16

def self.thumbnail_pdf(source, resize_string, timestamp = nil)
  if file = self.fetch_file(source)
    url = file.thumb(resize_string, format: 'png', frame: 0).encode('png').url
    timestamp ? url + "?#{timestamp}" : url
  else
    Locomotive.log :error, "Unable to convert the pdf: #{source.inspect}"
    return
  end
end