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/**
* (C) Copyright 2004-2007 Shawn Betts
* (C) Copyright 2007-2009,2011 John J. Foerch
* (C) Copyright 2007-2008 Jeremy Maitin-Shepard
*
* Use, modification, and distribution are subject to the terms specified in the
* COPYING file.
**/
function set_branch_pref (branch, name, value) {
if (typeof(value) == "string") {
branch.setCharPref(name, value);
} else if (typeof(value) == "number") {
branch.setIntPref(name, value);
} else if (typeof(value) == "boolean") {
branch.setBoolPref(name, value);
}
}
function default_pref (name, value) {
var branch = preferences.getDefaultBranch(null);
set_branch_pref(branch, name, value);
}
function user_pref (name, value) {
var branch = preferences.getBranch(null);
set_branch_pref(branch, name, value);
}
function get_branch_pref (branch, name) {
switch (branch.getPrefType(name)) {
case branch.PREF_STRING:
return branch.getCharPref(name);
case branch.PREF_INT:
return branch.getIntPref(name);
case branch.PREF_BOOL:
return branch.getBoolPref(name);
default:
return null;
}
}
function get_localized_pref (name) {
try {
return preferences.getBranch(null).getComplexValue(name, Ci.nsIPrefLocalizedString).data;
} catch (e) {
return null;
}
}
function get_pref (name) {
var branch = preferences.getBranch(null);
return get_branch_pref(branch, name);
}
function get_default_pref (name) {
var branch = preferences.getDefaultBranch(null);
return get_branch_pref(branch, name);
}
function clear_pref (name) {
var branch = preferences.getBranch(null);
return branch.clearUserPref(name);
}
function clear_default_pref (name) {
var branch = preferences.getDefaultBranch(null);
return branch.deleteBranch(name);
}
function pref_has_user_value (name) {
var branch = preferences.getBranch(null);
return branch.prefHasUserValue(name);
}
function pref_has_default_value (name) {
var branch = preferences.getDefaultBranch(null);
return branch.prefHasUserValue(name);
}
function session_pref (name, value) {
try {
clear_pref (name);
} catch (e) {}
return default_pref(name, value);
}
function watch_pref (pref, hook) {
/* Extract pref into branch.pref */
let match = pref.match(/^(.*[.])?([^.]*)$/);
let br = match[1];
let key = match[2];
let branch = preferences.getBranch(br).QueryInterface(Ci.nsIPrefBranch2);
let observer = {
observe: function (subject, topic, data) {
if (topic == "nsPref:changed" && data == key) {
hook();
}
}
};
branch.addObserver("", observer, false);
}
provide("pref");
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