Discover CS launchers and launch application

companionScreenManager.js

CompanionScreenManager.prototype.discoverCSLaunchers = function (callback) {
  if (!csManager) return false;
  csManager.discoverCSLaunchers(function (launchers) {
    csLaunchers = launchers;
    $log(PREFIX + csLaunchers.length + ' CS launchers discovered');

    if (callback) { callback(); }
  });
};

CompanionScreenManager.prototype.launchCsApp = function (launcher, launchUrl) {
  if (!csManager || !csLaunchers) return false;
  var payload = JSON.stringify({
    launch: [
      {
        launchUrl: launchUrl,
        appType: 'html'
      }
    ]
  });

  if (launchUrl) {
    csManager.launchCSApp(launcher.enum_id, payload, _onCSLaunch);
    $log(PREFIX + 'CS App launched, with URL: ' + launchUrl );
  }
};