jquery.jetinject.min.js

/*
 * Copyright (c) 2008-2009 Olle Törnström studiomediatech.com
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

/**
 * Jetinject is a very simple, small and able dependency injection-, 
 * application context- or bean factory-plugin for jQuery.
 * 
 * Wire an application context like this:
 *
 *    $.applicationContext({
 *       'myService' : {type : Service},
 *       'myView' : {type : View},
 *       'myWidget' : {type : Widget, props : {
 *          'service' : {ref : 'myService'},
 *          'view' : {ref : 'myView'}
 *       }}
 *    });
 *
 * And retreive a wired bean like this:
 *
 *    $.getBean('myWidget').do(...);
 *
 * @author Olle Törnström olle[at]studiomediatech[dot]com
 * @created 2008-11-17
 * @version 1.0.0-BETA
 * 
 * $Id$
 */
;(function($){Bean=function(definition){this.type=definition.type;this.args=definition.args||[];this.props=definition.props||{};this.scope=(/(prototype|singleton)/).test(definition.scope)?definition.scope:'singleton';return this;};Bean.prototype.wire=function(instance,context){$.each(this.props||{},function(prop,def){if(typeof def.ref!=='undefined'){instance[prop]=context.instances[def.ref];}else if(typeof def.type!=='undefined'){def.scope='prototype';def.props={};var innerBean=new Bean(def);var innerInstance=innerBean.getInstance();innerBean.wire(innerInstance,context);instance[prop]=innerInstance;}});};Bean.prototype.getInstance=function(){var obj=new this.type;this.type.apply(obj,this.args);return obj;};ApplicationContext=function(config){var _beans=this.beans={};var _instances=this.instances={};$.each(config||{},function(id,definition){var bean=new Bean(definition);_beans[id]=bean;if(bean.scope==='singleton')
_instances[id]=bean.getInstance();});var that=this;$.each(_instances,function(id,instance){_beans[id].wire(instance,that);});return this;};ApplicationContext.prototype.getBean=function(id){if(typeof this.beans[id]==='undefined')
return undefined;if(this.beans[id].scope==='prototype'){var instance=this.beans[id].getInstance(true);this.beans[id].wire(instance,this);return instance;}
return this.instances[id];};var applicationContext;$.applicationContext=function(config){applicationContext=new ApplicationContext(config);};$.getBean=function(name){return applicationContext.getBean(name);};})(jQuery);