treestyletab/modules/namespace.jsm

53 lines
1.6 KiB
JavaScript

/*
Shared Namespace Library for JavaScript Code Modules
Usage:
Components.utils.import('resource://my-modules/namespace.jsm');
var namespace = getNamespaceFor('mylibrary');
if (!namespace.func1) {
namespace.func1 = function() { ... };
namespace.func2 = function() { ... };
}
var EXPORTED_SYMBOLS = ['func1', 'func2'];
var func1 = namespace.func1;
var func2 = namespace.func2;
lisence: The MIT License, Copyright (c) 2010 SHIMODA "Piro" Hiroshi
http://www.cozmixng.org/repos/piro/fx3-compatibility-lib/trunk/license.txt
original:
http://www.cozmixng.org/repos/piro/fx3-compatibility-lib/trunk/namespace.js
*/
var EXPORTED_SYMBOLS = ['getNamespaceFor'];
const Cc = Components.classes;
const Ci = Components.interfaces;
const currentRevision = 1;
const Application = '@mozilla.org/fuel/application;1' in Cc ?
Cc['@mozilla.org/fuel/application;1'].getService(Ci.fuelIApplication) :
'@mozilla.org/steel/application;1' in Cc ?
Cc['@mozilla.org/steel/application;1'].getService(Ci.steelIApplication) :
null ;
if (!Application)
throw new Error('there is no backend for shared namespaces!');
const storage = Application.storage;
if (!storage.has('sharednamespaces@piro.sakura.ne.jp'))
storage.set('sharednamespaces@piro.sakura.ne.jp', {});
var namespaces = storage.get('sharednamespaces@piro.sakura.ne.jp', null);
function getNamespaceFor(aName)
{
if (!aName)
throw new Error('you must specify the name of the namespace!');
if (!(aName in namespaces))
namespaces[aName] = {};
return namespaces[aName];
}