Class: WickedPdf

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

Constant Summary collapse

@@config = 
{}

Instance Method Summary collapse

Constructor Details

#initialize(wkhtmltopdf_binary_path = nil) ⇒ WickedPdf

Returns a new instance of WickedPdf.



18
19
20
21
22
23
24
25
 
# File 'lib/wicked_pdf.rb', line 18

def initialize(wkhtmltopdf_binary_path = nil)
  @exe_path = wkhtmltopdf_binary_path
  @exe_path ||= WickedPdf.config[:exe_path] unless WickedPdf.config.empty?
  @exe_path ||= (defined?(Bundler) ? `bundle exec which wkhtmltopdf` : `which wkhtmltopdf`).chomp
  raise "Location of wkhtmltopdf unknown" if @exe_path.empty?
  raise "Bad wkhtmltopdf's path" unless File.exists?(@exe_path)
  raise "Wkhtmltopdf is not executable" unless File.executable?(@exe_path)
end

Instance Method Details

#pdf_from_string(string, options = {}) ⇒ Object 



27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
 
# File 'lib/wicked_pdf.rb', line 27

def pdf_from_string(string, options={})
  command = "\"#{@exe_path}\" #{parse_options(options)} #{'-q ' unless on_windows?}- - " # -q for no errors on stdout
  print_command(command) if in_development_mode?
  pdf, err = Open3.popen3(command) do |stdin, stdout, stderr|
    stdin.binmode
    stdout.binmode
    stderr.binmode
    stdin.write(string)
    stdin.close
    [stdout.read, stderr.read]
  end
  raise "PDF could not be generated!" if pdf and pdf.rstrip.length == 0
  pdf
rescue Exception => e
  raise "Failed to execute:\n#{command}\nError: #{e}"
end