Object
# File lib/pdfkit/configuration.rb, line 40 def self.configure yield(configuration) end
# File lib/pdfkit/pdfkit.rb, line 22 def initialize(url_file_or_html, options = {}) @source = Source.new(url_file_or_html) @stylesheets = [] @options = PDFKit.configuration.default_options.merge(options) @options.merge! find_options_in_meta(url_file_or_html) unless source.url? @options = normalize_options(@options) raise NoExecutableError.new unless File.exists?(PDFKit.configuration.wkhtmltopdf) end
# File lib/pdfkit/pdfkit.rb, line 34 def command(path = nil) args = [executable] args += @options.to_a.flatten.compact args << '--quiet' if @source.html? args << '-' # Get HTML from stdin else args << @source.to_s end args << (path || '-') # Write to file or stdout args.map {|arg| %{"#{arg.shellescape}"}} end
# File lib/pdfkit/pdfkit.rb, line 50 def executable default = PDFKit.configuration.wkhtmltopdf return default if default !~ /^\// # its not a path, so nothing we can do if File.exist?(default) default else default.split('/').last end end
# File lib/pdfkit/pdfkit.rb, line 77 def to_file(path) self.to_pdf(path) File.new(path) end
# File lib/pdfkit/pdfkit.rb, line 60 def to_pdf(path=nil) append_stylesheets args = command(path) invoke = args.join(' ') result = IO.popen(invoke, "wb+") do |pdf| pdf.puts(@source.to_s) if @source.html? pdf.close_write pdf.gets(nil) end result = File.read(path) if path raise "command failed: #{invoke}" if result.to_s.strip.empty? return result end
# File lib/pdfkit/pdfkit.rb, line 103 def append_stylesheets raise ImproperSourceError.new('Stylesheets may only be added to an HTML source') if stylesheets.any? && !@source.html? stylesheets.each do |stylesheet| if @source.to_s.match(/<\/head>/) @source = Source.new(@source.to_s.gsub(/(<\/head>)/, style_tag_for(stylesheet)+'\1')) else @source.to_s.insert(0, style_tag_for(stylesheet)) end end end
# File lib/pdfkit/pdfkit.rb, line 84 def find_options_in_meta(content) # Read file if content is a File content = content.read if content.is_a?(File) found = {} content.scan(/<meta [^>]*>/) do |meta| if meta.match(/name=["']#{PDFKit.configuration.meta_tag_prefix}/) name = meta.scan(/name=["']#{PDFKit.configuration.meta_tag_prefix}([^"']*)/)[0][0] found[name.to_sym] = meta.scan(/content=["']([^"']*)/)[0][0] end end found end
# File lib/pdfkit/pdfkit.rb, line 126 def normalize_arg(arg) arg.to_s.downcase.gsub(/[^a-z0-9]/,'-') end
# File lib/pdfkit/pdfkit.rb, line 115 def normalize_options(options) normalized_options = {} options.each do |key, value| next if !value normalized_key = "--#{normalize_arg key}" normalized_options[normalized_key] = normalize_value(value) end normalized_options end
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