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Fast & uid
Web-native
(no plugins)
Local agency
Server not
worried about UI
{quot;statusquot;:quot;1quot;, quot;dataquot;:
[{quot;guidquot;:quot;PAPER-110226quot;,quot;typequot;:quot;Paperquot;,quot;titlequot;:
quot;Disaggregation of rainfall time series via
Gibbs samplingquot;,quot;abstractquot;:quot;We propose a MCMC
methodology to estimate all the components of
the RodriguezIturbe model.quot;,
quot;yearquot;:quot;1998quot;,quot;fixedyearquot;:quot;2quot;,quot;referencesquot;:
[quot;PAPER-22950quot;,quot;PAPER-434520quot;,quot;PAPER-77136quot;],quot;c
itationsquot;:[],quot;authorsquot;:
[{quot;guidquot;:quot;AUTHOR-128481quot;,quot;namequot;:quot;R. L. Smithquot;},
{quot;guidquot;:quot;AUTHOR-243476quot;,quot;namequot;:quot;V.
Granvillequot;}]}
class RefreshController < ApplicationController

 before_filter :signin_required

 def index
  render :text => JSON.generate(Refresher.new(params).to_hash)
 end

end
Introduction to SproutCore
        Mike Subelsky
         @subelsky
The Near Future
“[Screw] the server, move all the processing
           power to the client”

  quot;move presentation back to the clientquot;

                          - Chris WIlliams
The Near Future
      TaffyDB     Titanium
Cappuccino      O3D   PhoneGap
The Present
The Present


Desktop-Like
~200 ms
Not much
 storage
For Cloud Apps
Borrows Patterns
Different API
quot;How would you build Cocoa for
  the web browser if you could
    rewrite it from scratch...
...throwing away old out of date
             parts?quot;
                    - Charles Jolley
Borrows Patterns
Cocoa Touch
Cocoa Touch




Courtesy Neven Mrgan
What Could We Build?
MMORPG
                             Audio editor
IDE*
                  CASE                 Workflow
         GIS             Guitar-hero clone?


   What Could We Build?
                      CRM               Statistics
Video editor*

                             Image editor

                CAD
What Would
You Need?
What Desktop
Developers Have
What Desktop
      Developers Have
   Local database
Keyboard management
  Focus management
    Drag-and-drop
    Drawing layer
Bindings & Observers*
What Desktop
      Developers Have
   Local database               MVC
                           Event handling
Keyboard management
                               Timers
  Focus management
                            Build system
    Drag-and-drop
                         Testing framework
    Drawing layer
                        Incremental Loading
Bindings & Observers*
Key-Value Coding
Key-Value Coding

Key-Value Observation
Key-Value Coding

Key-Value Observation

      Bindings
Key-Value Coding

object.get(‘name’); // ‘Bob’
object.set(‘name’,‘Sarah’); // object
Key-Value Coding

object.name
object.name = ‘Sarah’
Key-Value Coding

object.name
object.name = ‘Sarah’
Key-Value
                   Observation


                                  ContactListItem
                                       View

  Contact
   Contact
    Contact
                           <h2>Lucy Smith</h2>
     Contact
guid: 5
firstName: quot;Lucyquot;
Key-Value
                      Observation

        ContactsController
     content = contacts collection
        selection = contact 5
                                            ContactListItem
                                                 View

  Contact
   Contact
    Contact
                                     <h2>Lucy Smith</h2>
     Contact
guid: 5
firstName: quot;Lucyquot;
Key-Value
                      Observation
                                        ContactController
                                             content =
                                     ContactsController.selection

        ContactsController
     content = contacts collection
        selection = contact 5
                                                                ContactListItem
                                                                     View

  Contact
   Contact
    Contact
                                                   <h2>Lucy Smith</h2>
     Contact
guid: 5
firstName: quot;Lucyquot;
Key-Value
                      Observation
                                        ContactController
                                             content =
                                     ContactsController.selection

        ContactsController
     content = contacts collection
        selection = contact 5
                                                                ContactListItem
                                                                     View

  Contact
   Contact
    Contact
                                                   <h2>Lucy Smith</h2>
     Contact
guid: 5
firstName: quot;Lucyquot;
Key-Value
                      Observation
                                        ContactController
                                             content =
                                     ContactsController.selection

        ContactsController
     content = contacts collection
        selection = contact 5
                                                                ContactListItem
                                                                     View

  Contact
   Contact
    Contact
                                                   <h2>Lucy Smith</h2>
     Contact
guid: 5
firstName: quot;Lucyquot;

object.set(‘name’,‘Sarah’);
Key-Value
                       Observation
                                        ContactController
                                             content =
                        Change
                                     ContactsController.selection

        ContactsController
                                                                     Change
     content = contacts collection
        selection = contact 5
                                                                ContactListItem
                                                                     View
              Change
  Contact
   Contact
    Contact
                                                   <h2>Lucy Smith</h2>
     Contact
guid: 5
firstName: quot;Lucyquot;

object.set(‘name’,‘Sarah’);
Key-Value
                       Observation
                                        ContactController
                                             content =
                        Change
                                     ContactsController.selection

        ContactsController
                                                                     Change
     content = contacts collection
        selection = contact 5
                                                                ContactListItem
                                                                     View
              Change
  Contact
   Contact
    Contact
                                                <h2>Sarah Smith</h2>
     Contact
guid: 5
firstName: quot;Lucyquot;

object.set(‘name’,‘Sarah’);
Bindings
                                        ContactController
                                             content =
                                     ContactsController.selection

        ContactsController
     content = contacts collection
        selection = contact 5
                                                                ContactListItem
                                                                     View

  Contact
   Contact
    Contact
                                                   <h2>Lucy Smith</h2>
     Contact
guid: 5
firstName: quot;Lucyquot;
KVC/KVO Demo
Properties
require('core');

Contacts.Contact = SC.Record.extend({

 fullName: function() {
   return [this.get('firstName'),
   this.get('lastName')].join(' ');
 }.property('firstName', 'lastName')

});
Code Base Tour




  0.9.x API
What gets downloaded?
javascript.js*
stylesheet.css
index.html
images (sprite for bonus)




               All can be cached
SC generates these files on the fly
in development mode

        Served by Merb / Rack
SC builds these files as static
   assets in production mode

Served by Apache,Varnish, CDN, etc.
       Rails-style asset tags
Thanks to
 Erich Ocean
     and
Charles Jolley
Questions?
  mike@oib.com
   @subelsky

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Introduction to SproutCore at JSConf

Editor's Notes