2 * (C) Copyright 2004-2007 Shawn Betts
3 * (C) Copyright 2007-2009 John J. Foerch
4 * (C) Copyright 2007-2008 Jeremy Maitin-Shepard
6 * Use, modification, and distribution are subject to the terms specified in the
13 * get_os returns a string identifying the current OS.
14 * possible values include 'Darwin', 'Linux' and 'WINNT'.
16 let (xul_runtime = Cc['@mozilla.org/xre/app-info;1']
17 .getService(Ci.nsIXULRuntime)) {
19 return xul_runtime.OS;
23 const WINDOWS = (get_os() == "WINNT");
24 const POSIX = !WINDOWS;
28 * getenv returns the value of a named environment variable or null if
29 * the environment variable does not exist.
31 let (env = Cc['@mozilla.org/process/environment;1']
32 .getService(Ci.nsIEnvironment)) {
33 function getenv (variable) {
34 if (env.exists(variable))
35 return env.get(variable);
42 * get_home_directory returns an nsILocalFile object of the user's
45 function get_home_directory () {
46 var dir = Cc["@mozilla.org/file/local;1"]
47 .createInstance(Ci.nsILocalFile);
48 if (get_os() == "WINNT") {
49 var home = getenv('HOME') ||
50 getenv('USERPROFILE') ||
51 getenv('HOMEDRIVE') + getenv('HOMEPATH');
52 home = home.replace("/", "\\", "g");
53 dir.initWithPath(home);
55 dir.initWithPath(getenv('HOME'));
60 /* get_current_profile returns the name of the current profile, or
61 * null if that information cannot be found. The result is cached for
62 * quick repeat lookup. This is safe because xulrunner does not
63 * support switching profiles on the fly.
65 * Profiles don't necessarily have a name--as such this information should
66 * not be depended on for anything important. It is mainly intended for
67 * decoration of the window title and mode-line.
69 let (profile_name = null) {
70 function get_current_profile () {
73 if ("@mozilla.org/profile/manager;1" in Cc) {
74 profile_name = Cc["@mozilla.org/profile/manager;1"]
75 .getService(Ci.nsIProfile)
79 var current_profile_path = Cc["@mozilla.org/file/directory_service;1"]
80 .getService(Ci.nsIProperties)
81 .get("ProfD", Ci.nsIFile).path;
82 var profile_service = Cc["@mozilla.org/toolkit/profile-service;1"]
83 .getService(Components.interfaces.nsIToolkitProfileService);
84 var profiles = profile_service.profiles;
85 while (profiles.hasMoreElements()) {
86 var p = profiles.getNext().QueryInterface(Ci.nsIToolkitProfile);
87 if (current_profile_path == p.localDir.path ||
88 current_profile_path == p.rootDir.path)
90 profile_name = p.name;
100 function get_locale () {
101 const LOCALE_PREF = "general.useragent.locale";
102 return get_localized_pref(LOCALE_PREF) || get_pref(LOCALE_PREF);
106 const PATH = getenv("PATH").split(POSIX ? ":" : ";");
107 const path_component_regexp = POSIX ? /^[^\/]+$/ : /^[^\/\\]+$/;
109 function find_file_in_path (name) {
110 if (name instanceof Ci.nsIFile) {
115 var file = Cc["@mozilla.org/file/local;1"]
116 .createInstance(Ci.nsILocalFile);
117 if (! path_component_regexp.test(name)) {
120 file.initWithPath(name);
127 for (var i = 0, plen = PATH.length; i < plen; ++i) {
129 file.initWithPath(PATH[i]);
130 file.appendRelativePath(name);