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Reef
AJAX the way it should be
Who am I?
Who am I?


• The guy who builds a VM, and everybody hates
  because their plugins are not ready
Who am I?


• The guy who builds a VM, and everybody hates
  because their plugins are not ready
• He also does some Seaside time to time
Last year...


• Reef presentation was a big success (thanks!)
• Some of you tried it and provide valuable
  feedback...
But not everybody present here today
        was present last year...


          So... what’s Reef?
“The problem”
Nesting problem
Functionality is distributed all around the component
                 (and could be worse)



  • renderContentOn:
         sends renderRegionsOn:
           sends renderCitiesOn:
Nesting problem

Real problem is we are still programing in HTML
  (yes, with smalltalk “flavour”, but still HTML)
Reef summary

AJAX/Javascript
  component
framework for
    Seaside.
Reef summary




Models HTML/Javascript components
       into Smalltalk objects
Reef summary


Hides communication complexity
Reef architecture
Reef architecture


   Dispatcher
A trade-off
         (yep, there is always one)



                 An extra request
(not always, but enough to be taken into account)
Communication

• We handle interactions through callbacks, just
  as Seaside
• But all callbacks should be threat the same
 • AJAX calls
 • regular requests
 • client behavior
Example
Coming to your image... this year!
What changed
                    (for good)



      Better
 integration with
     jQuery:
skins, widget box
What changed
                 (for good)



    An important
    optimization:
#asReefTriggerCallback
What changed
                  (for good)



More widgets
(but still just
those I need)
What’s new
              (and testing)




Composites
What’s new
                   (and testing)

• Magritte-Reef
 • Brings web 2.0 to
   Magritte-Seaside
 • Ease cool effects:
  • tooltips, masks, etc.
 • Complex behaviors
What remains
             (and it shouldn’t)




• Documentation is still poor
• Reef protocol names are still ugly
• Testing is still non-existent
The heresy revisited
(we need to be heretics again)
you know:
why not:
Future work
• Still experimenting with optimizations around
  the dispatcher
• Rename all protocols into something really
  meaningful
• Write more documentation (like finalize the
  chapter for PBE2)
• More feedback?
Questions?
http://squeaksource.com/Reef

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