Capture HTML5 slides by Ghost.py

main.py

from ghost import Ghost

ghost = Ghost()
session = ghost.start()

session.set_viewport_size(1135, 740)

session.open('http://io-2012-slides.googlecode.com/git/template.html')
session.evaluate('for (var idx = slidedeck.curSlide_; idx > 0; idx--) { slidedeck.prevSlide();}')
session.sleep(1)

session.capture_to('slide_1.png')
session.evaluate('slidedeck.nextSlide();')
session.sleep(1)
session.capture_to('slide_2.png')
session.evaluate('slidedeck.nextSlide();')
session.sleep(1)
session.capture_to('slide_3.png')

run.py

from ghost import Ghost

ghost = Ghost()
session = ghost.start()

session.set_viewport_size(1135, 740)

session.open('http://io-2012-slides.googlecode.com/git/template.html')
maxIdx = int(session.evaluate('slidedeck.slides.length')[0])
print(session.evaluate('slidedeck.slides.length'))
print('Max {} slides'.format(maxIdx))

session.evaluate('for (var idx = slidedeck.curSlide_; idx > 0; idx--) { slidedeck.prevSlide();}')

for idx in range(maxIdx):
    print('target: {}/{}'.format(idx, maxIdx))
    if idx != (maxIdx - 1):
        curSlide = int(session.evaluate('slidedeck.curSlide_')[0])
        while idx >= curSlide:
            session.evaluate('slidedeck.nextSlide();')
            curSlide = int(session.evaluate('slidedeck.curSlide_')[0])
            print(idx, curSlide)
    session.evaluate('slidedeck.prevSlide();')
    session.sleep(1.5)
    session.capture_to('_slides/slide_{}.png'.format(idx))

session.exit()