Contents

#!/usr/bin/env ruby

require 'tmpdir'
require "slide-em-up"
require "goliath/runner"


puts "Export to pdf..."

# Config
output = ARGV.first || "slides.pdf"
delay = 500
url = "http://localhost:9000/"
viewport = { width: 1024, height: 768 }
presentation = SlideEmUp::Presentation.new(Dir.pwd)

# Run a slide-em-up instance in background
pid = Process.fork do
  runner = Goliath::Runner.new([], nil)
  runner.app = SlideEmUp::Routes.run(presentation)
  runner.run
end

# Count the number of slides
nb_slides = presentation.nb_slides

# The phantomjs script
js = <<-EOS
var dir = phantom.args[0];
var page = require('webpage').create();
page.viewportSize = { width: #{viewport[:width]}, height: #{viewport[:height]} };
page.paperSize = { format: 'A4', orientation: 'landscape' };

function exportSlides() {
  var i = 0;
  setInterval(function() {
    console.log('Render slide ' + i);
    page.render(dir + '/slide' + i + '.pdf');
    page.sendEvent('keypress', ' ');
    if (++i == #{nb_slides}) { phantom.exit(); }
  }, #{delay});
}

console.log('Load #{url}');
page.open("#{url}", function (status) {
  if (status !== 'success') {
    console.log('Unable to load the given URL');
    phantom.exit(-1);
  } else {
    // wait to be sure the page is loaded correctly
    setTimeout(exportSlides, #{delay} * 5);
  }
});
EOS

Dir.mktmpdir do |dir|
  sleep 2
  script = "#{dir}/script.js"
  File.write script, js
  system "phantomjs #{script} #{dir}"
  files = (0...nb_slides).map {|i| "#{dir}/slide#{i}.pdf" }.join ' '
  system "pdftk #{files} cat output #{output}"
  File.delete script
end

Process.kill "QUIT", pid
Process.wait pid

Version data entries

4 entries across 4 versions & 1 rubygems

Version	Path
slide-em-up-0.3.5	bin/slide-em-up2pdf
slide-em-up-0.3.4	bin/slide-em-up2pdf
slide-em-up-0.3.3	bin/slide-em-up2pdf
slide-em-up-0.3.2	bin/slide-em-up2pdf