/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is sessionstore test code.
 *
 * The Initial Developer of the Original Code is
 * Michael Kraft <morac99-firefox@yahoo.com>.
 * Portions created by the Initial Developer are Copyright (C) 2009
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

function browserWindowsCount() {
  let count = 0;
  let e = Cc["@mozilla.org/appshell/window-mediator;1"]
            .getService(Ci.nsIWindowMediator)
            .getEnumerator("navigator:browser");
  while (e.hasMoreElements()) {
    if (!e.getNext().closed)
      ++count;
  }
  return count;
}

function test() {
  // make sure we use sessionstore for undoClosetab
  var gPrefService = Components.classes["@mozilla.org/preferences-service;1"]
                        .getService(Components.interfaces.nsIPrefBranch);

  gPrefService.setIntPref("browser.tabs.max_tabs_undo", 0);

  /** Test for Bug 491168, ported by Bug 524369 **/
  is(browserWindowsCount(), 1, "Only one browser window should be open initially");

  // test setup
  let ss = Components.classes["@mozilla.org/suite/sessionstore;1"].getService(Components.interfaces.nsISessionStore);
  let ioService = Components.classes["@mozilla.org/network/io-service;1"].getService(Components.interfaces.nsIIOService);

  waitForExplicitFinish();

  const REFERRER1 = "http://www.example.net/?" + Date.now();
  const REFERRER2 = "http://www.example.net/?" + Math.random();

  let tab = getBrowser().addTab();
  getBrowser().selectedTab = tab;

  let browser = tab.linkedBrowser;
  browser.addEventListener("load", function() {
    browser.removeEventListener("load", arguments.callee, true);

    let tabState = JSON.parse(ss.getTabState(tab));
    is(tabState.entries[0].referrer,  REFERRER1,
       "Referrer retrieved via getTabState matches referrer set via loadURI.");

    tabState.entries[0].referrer = REFERRER2;
    ss.setTabState(tab, JSON.stringify(tabState));

    tab.addEventListener("SSTabRestored", function() {
      tab.removeEventListener("SSTabRestored", arguments.callee, true);
      is(window.content.document.referrer, REFERRER2, "document.referrer matches referrer set via setTabState.");

      getBrowser().removeTab(tab);
      let newTab = ss.undoCloseTab(window, 0);
      newTab.addEventListener("SSTabRestored", function() {
        newTab.removeEventListener("SSTabRestored", arguments.callee, true);

        is(window.content.document.referrer, REFERRER2, "document.referrer is still correct after closing and reopening the tab.");
        getBrowser().removeTab(newTab);

        is(browserWindowsCount(), 1, "Only one browser window should be open eventually");
        // clean up
        if (gPrefService.prefHasUserValue("browser.tabs.max_tabs_undo"))
          gPrefService.clearUserPref("browser.tabs.max_tabs_undo");
        finish();
      }, true);
    }, true);
  },true);

  let referrerURI = ioService.newURI(REFERRER1, null, null);
  browser.loadURI("http://www.example.net", referrerURI, null);
}
