snapshot

snapshot.js

var system = require('system');
var args = system.args;

var page = require('webpage').create(),
  address, top, left, width, height, output;

if (args.length < 2 || args.length > 7) {
  console.log('Usage: snapshot.js URL top left width height filename');
  phantom.exit();
} else {
  address = args[1];
  var query = 40;
  top = parseInt(args[2], 10);
  left = parseInt(args[3], 10) + (1024 - 980) / 2;
  width = args[4];
  height = parseInt(args[5], 10);
  output = args[6];

  page.viewportSize = { "width": 1024, "height": 768 };
  //left = 20;
  //width = 984;
  page.clipRect = { top: top, left: left, width: width, height: height };

  page.onResourceReceived = function (response) {
    if (response.url === address) {
      if (response.status !== 200) {
        console.log('fail');
        phantom.exit();
      }
      page.onResourceReceived = null;
    }
  };

  page.open(address, function (status) {
    if (status !== 'success') {
      console.log('fail');
      phantom.exit();
    } else {
      setTimeout(function () {
        page.render(output);
        console.log("success");
        phantom.exit();
      }, 200);
    }
  });
}