The Tor Browser: addon-sdk/source/lib/sdk/system/xul-app.js@6474c204b198 (annotated)

addon-sdk/source/lib/sdk/system/xul-app.js@6474c204b198 (annotated)

addon-sdk/source/lib/sdk/system/xul-app.js

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 "use strict";
 module.metadata = {
   "stability": "experimental"
 };
 var { Cc, Ci } = require("chrome");
 var appInfo = Cc["@mozilla.org/xre/app-info;1"]
               .getService(Ci.nsIXULAppInfo);
 var vc = Cc["@mozilla.org/xpcom/version-comparator;1"]
          .getService(Ci.nsIVersionComparator);
 var ID = exports.ID = appInfo.ID;
 var name = exports.name = appInfo.name;
 var version = exports.version = appInfo.version;
 var platformVersion = exports.platformVersion = appInfo.platformVersion;
 // The following mapping of application names to GUIDs was taken from:
 //
 //   https://addons.mozilla.org/en-US/firefox/pages/appversions
 //
 // Using the GUID instead of the app's name is preferable because sometimes
 // re-branded versions of a product have different names: for instance,
 // Firefox, Minefield, Iceweasel, and Shiretoko all have the same
 // GUID.
 // This mapping is duplicated in `app-extensions/bootstrap.js`. They should keep
 // in sync, so if you change one, change the other too!
 var ids = exports.ids = {
   Firefox: "{ec8030f7-c20a-464f-9b0e-13a3a9e97384}",
   Mozilla: "{86c18b42-e466-45a9-ae7a-9b95ba6f5640}",
   Sunbird: "{718e30fb-e89b-41dd-9da7-e25a45638b28}",
   SeaMonkey: "{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}",
   Fennec: "{aa3c5121-dab2-40e2-81ca-7ea25febc110}",
   Thunderbird: "{3550f703-e582-4d05-9a08-453d09bdfdc6}"
 };
 function is(name) {
   if (!(name in ids))
     throw new Error("Unkown Mozilla Application: " + name);
   return ID == ids[name];
 };
 exports.is = is;
 function isOneOf(names) {
   for (var i = 0; i < names.length; i++)
     if (is(names[i]))
       return true;
   return false;
 };
 exports.isOneOf = isOneOf;
 /**
  * Use this to check whether the given version (e.g. xulApp.platformVersion)
  * is in the given range. Versions must be in version comparator-compatible
  * format. See MDC for details:
  * https://developer.mozilla.org/en/XPCOM_Interface_Reference/nsIVersionComparator
  */
 var versionInRange = exports.versionInRange =
 function versionInRange(version, lowInclusive, highExclusive) {
   return (vc.compare(version, lowInclusive) >= 0) &&
          (vc.compare(version, highExclusive) < 0);
 }
 const reVersionRange = /^((?:<|>)?=?)?\s*((?:\d+[\S]*)|\*)(?:\s+((?:<|>)=?)?(\d+[\S]+))?$/;
 const reOnlyInifinity = /^[<>]?=?\s*[*x]$/;
 const reSubInfinity = /\.[*x]/g;
 const reHyphenRange = /^(\d+.*?)\s*-\s*(\d+.*?)$/;
 const reRangeSeparator = /\s*\|\|\s*/;
 const compares = {
   "=": function (c) { return c === 0 },
   ">=": function (c) { return c >= 0 },
   "<=": function (c) { return c <= 0},
   "<": function (c) { return c < 0 },
   ">": function (c) { return c > 0 }
 }
 function normalizeRange(range) {
     return range
         .replace(reOnlyInifinity, "")
         .replace(reSubInfinity, ".*")
         .replace(reHyphenRange, ">=$1 <=$2")
 }
 /**
  * Compare the versions given, using the comparison operator provided.
  * Internal use only.
  *
  * @example
  *  compareVersion("1.2", "<=", "1.*") // true
  *
  * @param {String} version
  *  A version to compare
  *
  * @param {String} comparison
  *  The comparison operator
  *
  * @param {String} compareVersion
  *  A version to compare
  */
 function compareVersion(version, comparison, compareVersion) {
   let hasWildcard = compareVersion.indexOf("*") !== -1;
   comparison = comparison || "=";
   if (hasWildcard) {
     switch (comparison) {
       case "=":
         let zeroVersion = compareVersion.replace(reSubInfinity, ".0");
         return versionInRange(version, zeroVersion, compareVersion);
       case ">=":
         compareVersion = compareVersion.replace(reSubInfinity, ".0");
         break;
     }
   }
   let compare = compares[comparison];
   return typeof compare === "function" && compare(vc.compare(version, compareVersion));
 }
 /**
  * Returns `true` if `version` satisfies the `versionRange` given.
  * If only an argument is passed, is used as `versionRange` and compared against
  * `xulApp.platformVersion`.
  *
  * `versionRange` is either a string which has one or more space-separated
  * descriptors, or a range like "fromVersion - toVersion".
  * Version range descriptors may be any of the following styles:
  *
  * - "version" Must match `version` exactly
  * - "=version" Same as just `version`
  * - ">version" Must be greater than `version`
  * - ">=version" Must be greater or equal than `version`
  * - "<version" Must be less than `version`
  * - "<=version" Must be less or equal than `version`
  * - "1.2.x" or "1.2.*" See 'X version ranges' below
  * - "*" or "" (just an empty string) Matches any version
  * - "version1 - version2" Same as ">=version1 <=version2"
  * - "range1 || range2" Passes if either `range1` or `range2` are satisfied
  *
  * For example, these are all valid:
  * - "1.0.0 - 2.9999.9999"
  * - ">=1.0.2 <2.1.2"
  * - ">1.0.2 <=2.3.4"
  * - "2.0.1"
  * - "<1.0.0 || >=2.3.1 <2.4.5 || >=2.5.2 <3.0.0"
  * - "2.x" (equivalent to "2.*")
  * - "1.2.x" (equivalent to "1.2.*" and ">=1.2.0 <1.3.0")
  */
 function satisfiesVersion(version, versionRange) {
   if (arguments.length === 1) {
     versionRange = version;
     version = appInfo.version;
   }
   let ranges = versionRange.trim().split(reRangeSeparator);
   return ranges.some(function(range) {
     range = normalizeRange(range);
     // No versions' range specified means that any version satisfies the
     // requirements.
     if (range === "")
       return true;
     let matches = range.match(reVersionRange);
     if (!matches)
       return false;
     let [, lowMod, lowVer, highMod, highVer] = matches;
     return compareVersion(version, lowMod, lowVer) && (highVer !== undefined
       ? compareVersion(version, highMod, highVer)
       : true);
   });
 }
 exports.satisfiesVersion = satisfiesVersion;