Class: Locomotive::Steam::Dragonfly

Inherits:
Object
  • Object
show all
Defined in:
lib/locomotive/steam/monkey_patches/dragonfly.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#enabled ⇒ Object

Returns the value of attribute enabled.



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# File 'lib/locomotive/steam/monkey_patches/dragonfly.rb', line 5

def enabled
  @enabled
end

#path ⇒ Object

Returns the value of attribute path.



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# File 'lib/locomotive/steam/monkey_patches/dragonfly.rb', line 5

def path
  @path
end

Class Method Details

.app ⇒ Object 



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# File 'lib/locomotive/steam/monkey_patches/dragonfly.rb', line 35

def self.app
  ::Dragonfly[:images]
end

.instance ⇒ Object 



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# File 'lib/locomotive/steam/monkey_patches/dragonfly.rb', line 40

def self.instance
  @@instance ||= new
end

.setup!(path) ⇒ Object 



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# File 'lib/locomotive/steam/monkey_patches/dragonfly.rb', line 44

def self.setup!(path)
  self.instance.path    = path
  self.instance.enabled = false

  begin
    require 'rack/cache'
    require 'dragonfly'

    ## initialize Dragonfly ##
    app = ::Dragonfly[:images].configure_with(:imagemagick)

    ## configure it ##
    ::Dragonfly[:images].configure do |c|
      convert = `which convert`.strip.presence || '/usr/bin/env convert'
      c.convert_command  = convert
      c.identify_command = convert

      c.allow_fetch_url  = true
      c.allow_fetch_file = true

      c.url_format = '/images/dynamic/:job/:basename.:format'
    end

    self.instance.enabled = true
  rescue Exception => e
    
    Locomotive::Steam::Logger.warn %{
[Dragonfly] !disabled!
[Dragonfly] If you want to take full benefits of all the features in the LocomotiveSteam, we recommend you to install ImageMagick and RMagick. Check out the documentation here: http://doc.locomotivecms.com/editor/installation.
}
  end
end

Instance Method Details

#enabled? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/locomotive/steam/monkey_patches/dragonfly.rb', line 7

def enabled?
  !!self.enabled
end

#resize_url(source, resize_string) ⇒ Object 



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# File 'lib/locomotive/steam/monkey_patches/dragonfly.rb', line 11

def resize_url(source, resize_string)
  _source = (case source
  when String then source
  when Hash   then source['url'] || source[:url]
  else
    source.try(:url)
  end)

  if _source.blank?
    Locomotive::Steam::Logger.error "Unable to resize on the fly: #{source.inspect}"
    return
  end

  return _source unless self.enabled?

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

  file.process(:thumb, resize_string).url
end