chrome/common/extensions/docs/examples/api/contentSettings/popup.js

// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

var incognito;
var url;

function settingChanged() {
  var type = this.id;
  var setting = this.value;
  var pattern = /^file:/.test(url) ? url : url.replace(/\/[^\/]*?$/, '/*');
  console.log(type+' setting for '+pattern+': '+setting);
  // HACK: [type] is not recognised by the docserver's sample crawler, so
  // mention an explicit
  // type: chrome.contentSettings.cookies.set - See http://crbug.com/299634
  chrome.contentSettings[type].set({
        'primaryPattern': pattern,
        'setting': setting,
        'scope': (incognito ? 'incognito_session_only' : 'regular')
      });
}

document.addEventListener('DOMContentLoaded', function () {
  chrome.tabs.query({active: true, currentWindow: true}, function(tabs) {
    var current = tabs[0];
    incognito = current.incognito;
    url = current.url;
    var types = ['cookies', 'images', 'javascript', 'plugins', 'popups',
                 'notifications'];
    types.forEach(function(type) {
      // HACK: [type] is not recognised by the docserver's sample crawler, so
      // mention an explicit
      // type: chrome.contentSettings.cookies.get - See http://crbug.com/299634
      chrome.contentSettings[type].get({
            'primaryUrl': url,
            'incognito': incognito
          },
          function(details) {
            document.getElementById(type).value = details.setting;
          });
    });
  });

  var selects = document.querySelectorAll('select');
  for (var i = 0; i < selects.length; i++) {
    selects[i].addEventListener('change', settingChanged);
  }
});