toolkit/mozapps/xpinstall/content/xpinstallConfirm.js

   1 # -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
   2 # ***** BEGIN LICENSE BLOCK *****
   3 # Version: MPL 1.1/GPL 2.0/LGPL 2.1
   4 #
   5 # The contents of this file are subject to the Mozilla Public License Version
   6 # 1.1 (the "License"); you may not use this file except in compliance with
   7 # the License. You may obtain a copy of the License at
   8 # http://www.mozilla.org/MPL/
   9 #
  10 # Software distributed under the License is distributed on an "AS IS" basis,
  11 # WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  12 # for the specific language governing rights and limitations under the
  13 # License.
  14 #
  15 # The Original Code is Mozilla.org Code.
  16 #
  17 # The Initial Developer of the Original Code is Ben Goodger.
  18 # Portions created by the Initial Developer are Copyright (C) 2001
  19 # the Initial Developer. All Rights Reserved.
  20 #
  21 # Contributor(s):
  22 #   Ben Goodger <ben@bengoodger.com> (v2.0)
  23 #
  24 # Alternatively, the contents of this file may be used under the terms of
  25 # either the GNU General Public License Version 2 or later (the "GPL"), or
  26 # the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  27 # in which case the provisions of the GPL or the LGPL are applicable instead
  28 # of those above. If you wish to allow use of your version of this file only
  29 # under the terms of either the GPL or the LGPL, and not to allow others to
  30 # use your version of this file under the terms of the MPL, indicate your
  31 # decision by deleting the provisions above and replace them with the notice
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  33 # the provisions above, a recipient may use your version of this file under
  34 # the terms of any one of the MPL, the GPL or the LGPL.
  35 #
  36 # ***** END LICENSE BLOCK *****
  37
  38 var XPInstallConfirm =
  39 {
  40   _param: null
  41 };
  42
  43
  44 XPInstallConfirm.init = function ()
  45 {
  46   var _installCountdown;
  47   var _installCountdownInterval;
  48   var _focused;
  49   var _timeout;
  50
  51   var bundle = document.getElementById("xpinstallConfirmStrings");
  52
  53   this._param = window.arguments[0].QueryInterface(Components.interfaces.nsIDialogParamBlock);
  54   if (!this._param)
  55     close();
  56
  57   this._param.SetInt(0, 1); // The default return value is "Cancel"
  58
  59   var _installCountdownLength = 5;
  60   try {
  61     var prefs = Components.classes["@mozilla.org/preferences-service;1"]
  62                           .getService(Components.interfaces.nsIPrefBranch);
  63     var delay_in_milliseconds = prefs.getIntPref("security.dialog_enable_delay");
  64     _installCountdownLength = Math.round(delay_in_milliseconds / 500);
  65   } catch (ex) { }
  66
  67   var itemList = document.getElementById("itemList");
  68
  69   var numItemsToInstall = this._param.GetInt(1);
  70   for (var i = 0; i < numItemsToInstall; ++i) {
  71     var installItem = document.createElement("installitem");
  72     itemList.appendChild(installItem);
  73
  74     installItem.name = this._param.GetString(i);
  75     installItem.url = this._param.GetString(++i);
  76     var icon = this._param.GetString(++i);
  77     if (icon != "")
  78       installItem.icon = icon;
  79     var cert = this._param.GetString(++i);
  80     if (cert)
  81       installItem.cert = bundle.getFormattedString("signed", [cert]);
  82     else
  83       installItem.cert = bundle.getString("unverified");
  84     installItem.signed = cert ? "true" : "false";
  85   }
  86
  87   var introString = bundle.getString("itemWarnIntroSingle");
  88   if (numItemsToInstall > 4)
  89     introString = bundle.getFormattedString("itemWarnIntroMultiple", [numItemsToInstall / 4]);
  90   if (this._param.objects && this._param.objects.length)
  91     introString = this._param.objects.queryElementAt(0, Components.interfaces.nsISupportsString).data;
  92   var textNode = document.createTextNode(introString);
  93   var introNode = document.getElementById("itemWarningIntro");
  94   while (introNode.hasChildNodes())
  95     introNode.removeChild(introNode.firstChild);
  96   introNode.appendChild(textNode);
  97
  98   var okButton = document.documentElement.getButton("accept");
  99   okButton.focus();
 100
 101   function okButtonCountdown() {
 102     _installCountdown -= 1;
 103
 104     if (_installCountdown < 1) {
 105       okButton.label = bundle.getString("installButtonLabel");
 106       okButton.disabled = false;
 107       clearInterval(_installCountdownInterval);
 108     }
 109     else
 110       okButton.label = bundle.getFormattedString("installButtonDisabledLabel", [_installCountdown]);
 111   }
 112
 113   function myfocus() {
 114     // Clear the timeout if it exists so only the last one will be used.
 115     if (_timeout)
 116       clearTimeout(_timeout);
 117
 118     // Use setTimeout since the last focus or blur event to fire is the one we
 119     // want
 120     _timeout = setTimeout(setWidgetsAfterFocus, 0);
 121   }
 122
 123   function setWidgetsAfterFocus() {
 124     if (_focused)
 125       return;
 126
 127     _installCountdown = _installCountdownLength;
 128     _installCountdownInterval = setInterval(okButtonCountdown, 500);
 129     okButton.label = bundle.getFormattedString("installButtonDisabledLabel", [_installCountdown]);
 130     _focused = true;
 131   }
 132
 133   function myblur() {
 134     // Clear the timeout if it exists so only the last one will be used.
 135     if (_timeout)
 136       clearTimeout(_timeout);
 137
 138     // Use setTimeout since the last focus or blur event to fire is the one we
 139     // want
 140     _timeout = setTimeout(setWidgetsAfterBlur, 0);
 141   }
 142
 143   function setWidgetsAfterBlur() {
 144     if (!_focused)
 145       return;
 146
 147     // Set _installCountdown to the inital value set in setWidgetsAfterFocus
 148     // plus 1 so when the window is focused there is immediate ui feedback.
 149     _installCountdown = _installCountdownLength + 1;
 150     okButton.label = bundle.getFormattedString("installButtonDisabledLabel", [_installCountdown]);
 151     okButton.disabled = true;
 152     clearInterval(_installCountdownInterval);
 153     _focused = false;
 154   }
 155
 156   function myUnload() {
 157     document.removeEventListener("focus", myfocus, true);
 158     document.removeEventListener("blur", myblur, true);
 159     window.removeEventListener("unload", myUnload, false);
 160   }
 161
 162   if (_installCountdownLength > 0) {
 163     document.addEventListener("focus", myfocus, true);
 164     document.addEventListener("blur", myblur, true);
 165     window.addEventListener("unload", myUnload, false);
 166
 167     okButton.disabled = true;
 168     setWidgetsAfterFocus();
 169   }
 170   else
 171     okButton.label = bundle.getString("installButtonLabel");
 172 }
 173
 174 XPInstallConfirm.onOK = function ()
 175 {
 176   this._param.SetInt(0, 0);
 177   return true;
 178 }
 179
 180 XPInstallConfirm.onCancel = function ()
 181 {
 182   this._param.SetInt(0, 1);
 183   return true;
 184 }