/* -*- Mode: JavaScript; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** 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 mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 * the Mozilla Foundation.
 * Portions created by the Initial Developer are Copyright (C) 2011
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Siddharth Agarwal <sid.bugzilla@gmail.com>
 *
 * 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 ***** */

const Ci = Components.interfaces;
const Cc = Components.classes;
const Cu = Components.utils;

Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.import("resource://gre/modules/Services.jsm");
Cu.import("resource://gre/modules/AddonManager.jsm");
Cu.import("resource:///modules/distribution.js");


/**
 * Glue code that should be executed before any windows are opened. Any
 * window-independent helper methods (a la nsBrowserGlue.js) should go in
 * MailUtils.js instead.
 */

function MailGlue() {
  this._init();
}

MailGlue.prototype = {
  // init (called at app startup)
  _init: function MailGlue__init() {
    Services.obs.addObserver(this, "xpcom-shutdown", false);
    Services.obs.addObserver(this, "final-ui-startup", false);
    Services.obs.addObserver(this, "mail-startup-done", false);
  },

  // cleanup (called at shutdown)
  _dispose: function MailGlue__dispose() {
    Services.obs.removeObserver(this, "xpcom-shutdown");
    Services.obs.removeObserver(this, "final-ui-startup");
    Services.obs.removeObserver(this, "mail-startup-done");
  },

  // nsIObserver implementation
  observe: function MailGlue_observe(aSubject, aTopic, aData) {
    switch (aTopic) {
    case "xpcom-shutdown":
      this._dispose();
      break;
    case "final-ui-startup":
      this._onProfileStartup();
      break;
    case "mail-startup-done":
      this._onMailStartupDone();
      break;
    }
  },

  _onProfileStartup: function MailGlue__onProfileStartup() {
    TBDistCustomizer.applyPrefDefaults();

    // check if we're in safe mode
    if (Services.appinfo.inSafeMode) {
      Services.ww.openWindow(null, "chrome://messenger/content/safeMode.xul", 
                             "_blank", "chrome,centerscreen,modal,resizable=no", null);
    }
  },

  _onMailStartupDone: function MailGlue__onMailStartupDone() {
    // On Windows 7 and above, initialize the jump list module.
    const WINTASKBAR_CONTRACTID = "@mozilla.org/windows-taskbar;1";
    if (WINTASKBAR_CONTRACTID in Cc &&
        Cc[WINTASKBAR_CONTRACTID].getService(Ci.nsIWinTaskbar).available) {
      Cu.import("resource:///modules/windowsJumpLists.js");
      WinTaskbarJumpList.startup();
    }

    // For any add-ons that were installed disabled and can be enabled, offer
    // them to the user.
    var win = Services.wm.getMostRecentWindow("mail:3pane");
    var tabmail = win.document.getElementById("tabmail");
    var changedIDs = AddonManager.getStartupChanges(AddonManager.STARTUP_CHANGE_INSTALLED);
    AddonManager.getAddonsByIDs(changedIDs, function (aAddons) {
      aAddons.forEach(function(aAddon) {
        // If the add-on isn't user disabled or can't be enabled then skip it.
        if (!aAddon.userDisabled || !(aAddon.permissions & AddonManager.PERM_CAN_ENABLE))
          return;

        tabmail.openTab("contentTab",
                        { contentPage: "about:newaddon?id=" + aAddon.id,
                          clickHandler: null });
      });
    });
  },

  // for XPCOM
  classID: Components.ID("{eb239c82-fac9-431e-98d7-11cacd0f71b8}"),
  QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver]),
};

var components = [MailGlue];
var NSGetFactory = XPCOMUtils.generateNSGetFactory(components);
