root/as3/CrossDomainBridge/src/net/jirox/crossdomainbridge/CrossDomainBridge.as

/*
 * Jiro Iwamoto. <jirokun@no spam@gmail.com>
 * http://d.hatena.ne.jp/sukesam
 * http://jirox.net/blog/
 *
 * The MIT License
 * --------
 * Copyright (c) 2007 Jiro Iwamoto.
 *
 * 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.
 */

package net.jirox.crossdomainbridge {
        import flash.display.Sprite;
        import flash.external.ExternalInterface;
        import mx.rpc.http.HTTPService;
        import mx.rpc.events.ResultEvent;
        import mx.rpc.events.FaultEvent;

        public class CrossDomainBridge extends Sprite {
                private var onSuccess:String;
                private var onFailure:String;

                public function CrossDomainBridge() {
                        ExternalInterface.addCallback('request', request);
                        ExternalInterface.addCallback('registerCallback', registerCallback);
                        // SWFの用意ができたので、flashvarsに指定されたrequestCallbackを実行する
                        ExternalInterface.call('CrossDomainBridge.' + loaderInfo.parameters['requestCallback'], null);
                }

                private function registerCallback(obj:Object):void {
                        this.onSuccess = obj.onSuccess;
                        this.onFailure = obj.onFailure;
                }

                private function request(url:String, params:Object):void {
                        var service:HTTPService = new HTTPService();
                        service.url = url;

                        service.addEventListener(ResultEvent.RESULT, result);
                        service.addEventListener(FaultEvent.FAULT, fault);
                        service.send(params);
                }

                private function result(event:ResultEvent):void {
                        ExternalInterface.call("CrossDomainBridge." + this.onSuccess, event.result);
                }

                private function fault(event:FaultEvent):void {
                        ExternalInterface.call("CrossDomainBridge." + this.onFailure, event);
                }
        }
}