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Easy responsive screenshots with Phantom.js
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/* | |
* Take a set of full height screenshots for a range of screensizes. | |
* phantomjs responsive-screens.js http://www.cnn.com/ png | |
* | |
* This will create a directory tree in your current directory which | |
* mirrors the URL. All files will be named with the current time. | |
* You can run this on a cron to build an archive of screenshots. | |
**/ | |
var page = new WebPage(), | |
address, output, size, filename_parts, ext, filename, dirs; | |
var useragent = [ | |
'Opera/9.80 (X11; Linux x86_64; U; fr) Presto/2.9.168 Version/11.50', | |
'Mozilla/5.0 (iPad; CPU OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A5355d Safari/8536.25', | |
'Opera/12.02 (Android 4.1; Linux; Opera Mobi/ADR-1111101157; U; en-US) Presto/2.9.201 Version/12.02' | |
]; | |
page.settings = { | |
loadImages: true, | |
javascriptEnabled: true, | |
userAgent: useragent[Math.floor(Math.random() * useragent.length)] | |
// resourceTimeout: 5000 | |
}; | |
var fs = require('fs'); | |
var now = new Date(); | |
var viewports = [ | |
{ width: 1920, height: 1080 }, | |
{ width: 1600, height: 900 }, | |
{ width: 1440, height: 900 }, | |
{ width: 1366, height: 768 }, | |
{ width: 1280, height: 800 }, | |
{ width: 1024, height: 768 }, | |
{ width: 768, height: 1024 }, | |
{ width: 736, height: 414 }, | |
{ width: 667, height: 375 }, | |
{ width: 640, height: 360 }, | |
{ width: 568, height: 320 } | |
]; | |
if (phantom.args.length < 2 || phantom.args.length > 3) { | |
console.log('Usage: responsive-screens.js URL png|pdf'); | |
phantom.exit(); | |
} else { | |
address = phantom.args[0]; | |
dir = url_to_dir(address); | |
ext = phantom.args[1]; | |
page.viewportSize = viewports[0]; | |
output = dir + "/" + date_string() + "-" + viewports[0].width + "." + ext; | |
page.open(address, function (status) { | |
if (status !== 'success') { | |
console.log('Unable to load the address!'); | |
} else { | |
window.setTimeout(function () { | |
console.log('Saving '+output+'...'); | |
page.render(output); | |
for (var i=1; i<viewports.length; i++) { | |
page.viewportSize = viewports[i]; | |
output = dir + "/" + date_string() + "_" + viewports[i].width + "." + ext; | |
console.log('Saving '+output+'...'); | |
page.render(output); | |
} | |
phantom.exit(); | |
}, 200); | |
} | |
}); | |
} | |
function url_to_dir( url ) { | |
var dir; | |
dir = url.replace(new RegExp('https?://'), ''); | |
if (dir.charAt(dir.length-1) == '/') dir = dir.substr(0, dir.length-2); | |
fs.makeTree(dir); | |
return dir; | |
} | |
function date_string() { | |
var month = now.getMonth()+1, | |
day = now.getDate(), | |
minutes = now.getMinutes(); | |
if ( month < 10 ) month = '0'+month; | |
if ( day < 10 ) day = '0'+day; | |
if ( minutes < 10 ) minutes = '0'+minutes; | |
return [now.getFullYear(), month, day].join('-') + "_" + [now.getHours(), minutes].join('-'); | |
} |
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