Awesome

#steer-screenshot

Take a screenshot of a google chrome window

Installation

npm install steer-screenshot

Dependencies

You will need to install graphicsmagick since this is whats used to validate the screenshot.

On Mac OS X with brew you can install it with:

brew install graphicsmagick

Also be sure to check out the requirements for steer.

Documentation

Sometimes Chrome hits a racecondtion so it either completly fails and returns undefined or the picture gets malformated. This module validates the picture and retries 5 times.

var path = require('path');
var steer = require('steer');
var screenshot = require('steer-screenshot');

var chrome = steer({
  cache: path.resolve(__dirname, 'cache'),
  inspectorPort: 7510,
  permissions: ['tabs'] // this module needs `tabs` permissions
});

chrome.once('open', function () {

  var options = {
    format: 'png', // defaults to "jpeg", "png" and "jpg" is also valid
    quality: 100 // defaults is 100, 0 <= quality <= 100
  };

  screenshot(chrome, options, function (err, buffer, attemps) {
    if (err) throw err;
    console.log('Screenshot taken after ' + attemps + ' attemps');
    fs.writeFileSync('picture.jpg', buffer);
  });
});

##License

The software is license under "MIT"

Copyright (c) 2014 Peter V. T. Schlegel

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.