[Tapestry-developer] problems with flash-integration

[Roberto Saccon]

Hello Howard and community   First, thanks for all the efforts put into this great Web-Framework.   Second, I try to add a new dimension to it by creating a general flash-component. You might ask, what is that good for. Well, I have created a Flash-Texteditor with may features (for weblog-application). This is much easier to do in Flash than in DHTML/Flashscript and with FlashRemoting (propietary) or Apache XML-RPC the Editor can talk to a servlet and even do things lilke spell-checking. But here comes my problem. After studying for two days the Tapestry RequestCycle, my Flashcomponent was neither capable to store the URL nor to initialize propperly a ActionListener. To handle that stuff in a simple servlet would be very easy, because the FlashClient simple puts an attributes into the HttpServletRequest, which is used as argument for invoking serverside-functions, and then puts the result back in the HttpServletRequest. So I created a very simple FlashComponent which just handles the HTML-Tage for embeding the flash-object and I put all the Logic into the servlet by overiding the doService-Method in the ApplicationServlet, see my codefragments commented es flash-ugly-hack-1 and flash-ugly-hack-2. Obviously, this is NOT how components should be created. But how can I create a real Component with a listener which is triggered when I "submit" form the flashclient ? I tried to modify the Link- and Form-Componentts,  but without success. Any help is highly appreciated.   regards Roberto     abstract public class FlashApplicationServlet extends ApplicationServlet { ... ... protected void doService(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {   //flash-ugly-hack-1   boolean flashRequest = false;   String flashParameter0 = null;   Object o = request.getAttribute("FLASH.PARAMS");   if ( o != null)   {     flashRequest = true;     List args = (List) o;     flashParameter0 = (String) args.get(0);   }     RequestContext context = null;   try     {       // Create a context from the various bits and pieces.         context = new RequestContext(((ApplicationServlet) this), request, response);       // The subclass provides the engine.       IEngine engine = getEngine(context);         // flash-ugly-hack-2       if (flashRequest)       {         String result = flashParameter0 + ((Visit) engine.getVisit()).getUser().getEmail();         request.setAttribute("FLASH.RESULT", result);       } .......