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From "Alexandr J. Smirnov" <...@demi.spb.ru>
Subject RE: Demo for AJAX faces componets
Date Mon, 08 Aug 2005 12:13:53 GMT
Yes. At present, I have description on my site ( smirnov.org.ru ) in
Russian, but after little time will make translation to English. It's simple
for me - for begin, wrote on native language :-). Also, i will put to server
JavaDoc .
After translation I can also place information on wiki page too.
  -----Original Message-----
  From: Enrique Medina [mailto:e.medina.m@gmail.com]
  Sent: Friday, August 05, 2005 5:53 PM
  To: MyFaces Development
  Cc: martin@marinschek.com
  Subject: Re: Demo for AJAX faces componets


  Great example using an AJAX-enabled dataTable. This can be really
helpfull! I think that Martin's students are also working on something
similar...

  Alexander, could you please post some reviews about your examples, I mean,
some kind of explanation of how is it done? Or better a wiki in MyFaces?


  2005/8/5, Alexandr J. Smirnov <sau@demi.spb.ru>:

    After any little problems,  my demo/test application visible from
internet.
    You can see it by :
    http://smirnov.org.ru/myfaces-ajax/ .
    At present, it was tested with Firefox 1.06, Microsoft IE 6.0 and 5.0 (
    from default install of Windows 2000 ) and Opera 8.02
    I will be very glad for report of success/failure test on other
browsers.

    My skills in JavaScript less then 1 month, but long time I worked with
java,
    c, c++ - as result,  I was surprised many times by unexpected work of
any
    code...
    I don't have any problems for server side part, but need any help for
build
    client-side scripts... Most in creating portable code for different
clients.

    ???
    Do you have a demo of this technology up and running?

    Can you start a discussion with code snippets on the mailing list how
you
    implemented that?

    How many changes would it take to get My Faces to use your approach?

    regards,

    Martin


    On 8/2/05, Alexandr J. Smirnov <sau@demi.spb.ru> wrote:
    I have worked ( as alpha-alpha-alpha .. ) set of custom components for
    create AJAX-like user interfaces for Java Server Faces Applications.
Main
    idea - in faces lifecycle, ve have view tree on server side and DOM tree
in
    client browser ( at present, saving tree on client side don't used ).
For
    ajax request, client send all user input of current form ( as normal
submit
    request ). Request phases work as usual, but on render responce phase
server
    send ONLY CHANGED parts of view ( i don't create full compare, but send
only
    fo pre-defined parts, or submitted form ). For this I created special
    AjaxContainer component, wich render it's children ( or part of
children )
    components. List of clientId's for rendered components included in
response
    for client-side part of framework.
    For other cases ( for example, such will work in-page Jabber client  )
    component can render updated xml in custom Listener, and set
    responseComplete  to FacesContext.

    On client side, JavaScript get list of rendered parts and update page
DOM
    Tree.
    In result, we have two-way communications between client browser and JSF
    view, and have sync tree's on client and server side. It's work like
common
    desctop applications.
    Such arch don't need create special RenderKit or change most of
    components - for example, at present, I have only custom tag's-renderers
for
    UICommand ( link & Button ) components, and have worked all standart and
    most of custom ( tree2 and any other Myfaces components ) as AJAX ... On
    other hand, custom renderers  based on usual Html renderers, and work
also
    in non-JavaScript environment as simple html...

    For client side script use XMLHttpRequest object, and, if it don't
exist,
    special "JavaScript"HttpRequest. It's worked same as XMLHttpRequest (
    designed with same properies and methods ), but use other idea. For
perform
    request, It appended to page <script> tag. Browser load script ( url
maked
    from form action url with query string as normal GET request ), but
script
    produced by special Filter on server from Html code of JSF Response - as
    pseudo-Dom tree of objects. Loaded script call handler function for
update
    page - same as XMLHttpRequest. Not need any iframe or other incompatible
    technologies for non XMLHttpRequest browsers.
    It can work in wide range of browsers, even in 4+ IE & Netscape  ???
    ( in theory. At present tested with Mozilla Firefox and IE 5.5+
browsers. I
    need help for make JavaScript compatible with others. )
    At present, XMLHttpRequest work only in Mozilla. Code for MS ActiveX was
    disabled since I don't can get any functionality of XML part for
microsoft
    object ! Xml parsed withowt errors. ( For xml request, i use in servlet
    Filter nekkohtml parser, and make valid xml, with all declarations and
    mime-type headers ). It make responseXML Tree, but any methods for
    navigate/manipulate don't worked ! Also, elements from responseXML can't
be
    inserted to page, don't produce event handlers etc.
    Current view of code repository -
    http://svn.demi.spb.ru/repository/myfaces-ajax/ Project created in
Eclipse.
    Sorry for possible mistakes - my native language is Russian.
    ========================================
    Alexander J. Smirnov




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