Class: WebFont::Downloader

Inherits:
Object
  • Object
show all
Defined in:
lib/web_font/downloader.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Downloader

Returns a new instance of Downloader.



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# File 'lib/web_font/downloader.rb', line 6

def initialize
  @finder = Finder.new
end

Instance Attribute Details

#finder ⇒ Object (readonly)

Returns the value of attribute finder.



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# File 'lib/web_font/downloader.rb', line 4

def finder
  @finder
end

Instance Method Details

#download(font_family, destination_path, from_cache = true) ⇒ Object

Download font from Google and save it locally

Returns nothing



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# File 'lib/web_font/downloader.rb', line 13

def download(font_family, destination_path, from_cache = true)
  downloaded_fonts = []
  item             = finder.find(font_family)
  return downloaded_fonts if item.empty?

  font_family      = item['family'].gsub(/\s/, '-')
  item['files'].each do |variant, url|
    filename  = "#{font_family}-#{variant}#{File.extname(url)}"
    font_path = File.join(destination_path, filename)

    if from_cache && LocalCache.enable? && cache_path = LocalCache.path(filename)
      FileUtils.copy(cache_path, destination_path)
      downloaded_fonts << font_path
    else
      unless File.exist?(font_path)
        HTTP.get(url, font_path)
        LocalCache.save(font_path)
        downloaded_fonts << font_path
      end
    end
  end

  downloaded_fonts
end