bbcshots.coffee
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### Create a mosaic image from all headline photos on BBC homepage
###
casper = require('casper').create()
nbLinks = 0
currentLink = 1
images = []
casper.start 'http://www.bbc.co.uk/', ->
nbLinks = @evaluate ->
return __utils__.findAll('#carousel_items_items li').length
@echo "#{nbLinks} items founds"
# hide navigation arrows
@evaluate ->
document.querySelector('.nav_left').style.display = "none"
document.querySelector('.nav_right').style.display = "none"
@mouse.move '#promo_carousel'
@waitUntilVisible '.autoplay.nav_pause', ->
@echo 'Moving over pause button'
@mouse.move '.autoplay.nav_pause'
@click '.autoplay.nav_pause'
@echo 'Clicked on pause button'
@waitUntilVisible '.autoplay.nav_play', ->
@echo 'Carousel has been paused'
# hide play button
@evaluate ->
document.querySelector('.autoplay').style.display = "none"
# Building resulting page and image
buildPage = ->
@echo 'Build result page'
fs = require 'fs'
@viewport 624, 400
pageHtml = "<html bgcolor=black><body>"
images.forEach (image) ->
pageHtml += "<img src='file://#{fs.workingDirectory}/#{image}'><br>"
pageHtml += "</body></html>"
fs.write 'result.html', pageHtml, 'w'
@thenOpen "file://#{fs.workingDirectory}/result.html", ->
@echo 'Resulting image saved to result.png'
@capture 'result.png'
# Capture carrousel area
next = ->
image = "bbcshot#{currentLink}.png"
images.push image
@echo "Processing image #{currentLink}"
@captureSelector image, '.carousel_viewport'
if currentLink < nbLinks
@click ".carousel_itemList_li[rel='#{currentLink}']"
@wait 1000, ->
@then next
currentLink++
else
@then buildPage
casper.then next
casper.run()