Wynn Netherland: Accelerating Titanium Development with CoffeeScript, Compass, and Sass

TITANIUM DEVELOPMENT WITH
Accelerated

COFFEESCRIPT, COMPASS, AND SASS

WYNNNETHERLAND

PIXELS I'VE PUSHED
With some very talented folks.

Play golf?
Find this dude and
get in on the beta.!

var foo = function () {
foo = () ->
}

JAVASCRIPT COFFEESCRIPT

I’d rather write this.

var button = Titanium.UI.createButton({
title: 'I am a Button',
height: 40,
width: 200,
top: 10
});

button.addEventListener('click', function(e) {
alert("Oooh, that tickles!");
});

JAVASCRIPT

button = Titanium.UI.createButton
title: 'I am a Button'
height: 40
width: 200
top: 10

button.addEventListener 'click', (e) ->
alert "Oooh, that tickles!"

COFFEESCRIPT

For me,

It's about more than aesthetics

; {}

Some of my favorite features...

for own key, value of query
uri += "#{ key }=#{ escape(value) }&"

COFFEESCRIPT

var key, value;
var __hasProp = Object.prototype.hasOwnProperty;
for (key in query) {
if (!__hasProp.call(query, key)) continue;
value = query[key];
uri += "" + key + "=" + (escape(value)) + "&";
}

JAVASCRIPT

Comprehensions


COFFEESCRIPT

Interpolation


COFFEESCRIPT

The Existential Operator

courseButtonSubhead = Ti.UI.createLabel
className: 'optRowSubhead'
text: "#{GolfStatus.App.currentGame?.green?.name}"

COFFEESCRIPT

Simple inheritance pattern
class GolfStatus.Models.Game

constructor: (@owner,
@course,
@playingFor='brag',
@scoringFormat='low_net') ->
@players = {}
@addPlayer @owner if @owner
@green = @course.greens[0] if @course
@currentHole = 1
@maxHolePlayed = 1

# elsewhere
game = new GolfStatus.Models.Game(...)

COFFEESCRIPT

@

@course,
@playingFor='brag',
@players = {}
@currentHole = 1
@maxHolePlayed = 1

COFFEESCRIPT

Default values

@course,
@playingFor='brag',
@players = {}
@currentHole = 1
@maxHolePlayed = 1

COFFEESCRIPT

More human conditionals

@course,
@playingFor='brag',
@players = {}
@currentHole = 1
@maxHolePlayed = 1

COFFEESCRIPT

Easy object.prototype
GolfStatus.Models.Game::PlayingForTypes =
brag: 'Bragging Rights'
cash: 'Status Cash'

GolfStatus.Models.Game::ScoringFormats =
low_net: 'Low Net'
low_grows: 'Low Gross'

COFFEESCRIPT

Heredocs
noticeHTML ='''
<html>
<head></head>
<body>
'''
noticeHTML += "<div>#{noticeText}</div>"
noticeHTML += '''
</body>
</html>
'''

COFFEESCRIPT

Because string building sucks.

GET
THE
BOOK.

http://wynn.fm/g8

<ul class='wynning'>
<li class='logo-mark'>
<a href='/about'>Wynn Netherland</a>
on design, development, and general geekery.
</li>
<li>
<a class='gowalla' href='http://gowalla.com/pengwynn'>Gowalla</a>
</li>
<li>
<a class='facebook' href='http://facebook.com/pengwynn'>Facebook</a>

content
</li>
<li>
<a class='dribbble' href='http://dribbble.com/pengwynn'>Dribbble</a>
</li>
<li>
<a class='linked-in' href='http://linkedin.com/in/netherland'>LinkedIn</a>
</li>
<li>
<a class='github' href='http://github.com/pengwynn'>GitHub</a>
</li>
<li>
<a class='twitter' href='http://twitter.com/pengwynn'>Twitter</a>
</li>

...

You gotta keep 'em separated.

✂
presentation

var buttonOne = Titanium.UI.createButton({
title:'I am a Button',
height:40,
width:200,
top:10
});

var buttonTwo = Titanium.UI.createButton({
title:'I am also a Button',
image:'../images/chat.png',
width:200,
height:40,
top:60
});

JAVASCRIPT

title:'I am a Button',
height:40,
width:200,

Presentation
top:10
});

title:'I am also a Button',
image:'../images/chat.png',
width:200,
height:40,
top:60
});

JAVASCRIPT

id: "buttonOne", JAVASCRIPT
Behavior and composition in
className: "button"
});

id: "buttonTwo",
className: "button"
});
.js
#buttonOne {
title:'I am a Button'; JSS
width:200;
height:40;
top:10
}
#buttonTwo {

Presentation in
title:'I am also a Button';
image:'../images/chat.png';
width:200;
height:40;

.jss
top:60
}
.button {
height: 40;
width: 200;
}

id: "buttonOne", JAVASCRIPT
className: "button"

Style hooks
});

id: "buttonTwo",
className: "button"
});

#buttonOne {
title:'I am a Button'; JSS
width:200;
height:40;
top:10
}
#buttonTwo {
title:'I am also a Button';
image:'../images/chat.png';
width:200;
height:40;
top:60
}
.button {
height: 40;
width: 200;
}

JSS

There's a better way to write CSS.

Patte
rns &
io n s & plugins
SS e xtens
C
co mpiler

&

Is it JSS or Sassy CSS?

#buttonOne {
title: 'I am a Button';
width: 200;
height: 40;
top: 10
}
#buttonTwo {
title: 'I am also a Button';
image: '../images/chat.png';
width: 200;
height: 40;
top: 60
}
.button {
height: 40;
width: 200;
}

JSS / SCSS
Yes?

I prefer Sass' original indented, whitespace aware syntax.

#buttonOne
width: 200
height: 40
top: 10

#buttonTwo
title: 'I am also a Button'
image: '../images/chat.png'
width: 200
height: 40
top: 60

.button
height: 40
width: 200

SASS

#buttonOne {
width: 200;
height: 40;
top: 10
}
#buttonTwo {
width: 200;
height: 40;
top: 60
}
.button {
height: 40;
width: 200;
}

SCSS

#buttonOne
width: 200
height: 40
top: 10

#buttonTwo
width: 200
height: 40
top: 60

.button
height: 40
width: 200

SASS

Pick one. Or not. Mix and match.

stylesheets
├── _activity.sass
├── _base.sass
├── _confirmation.sass
├── _course.scss
├── _courses.sass
├── _friends.scss
├── _gameplay.sass
├── _leaderboard.sass
├── _leaders.sass
├── _login.sass
├── _requests.sass @import 'base'
├── _tourcard.sass @import 'login'
└── app.sass @import 'activity'
@import 'course'
@import 'courses'
@import 'friends'
@import 'leaderboard'
@import 'leaders'
@import 'requests'
@import 'tourcard'
@import 'confirmation'
@import 'gameplay'

Resources
├── app.js
├── app.jss
...

stylesheets

Mix scss with sass
├── _activity.sass
├── _base.sass
├── _confirmation.sass

if you're so inclined.
├── _course.scss
├── _courses.sass
├── _friends.scss
├── _gameplay.sass
├── _leaderboard.sass
├── _leaders.sass
├── _login.sass
├── _requests.sass @import 'base'
├── _tourcard.sass @import 'login'
└── app.sass @import 'activity'
@import 'course'
@import 'courses'
@import 'friends'
@import 'leaderboard'
@import 'leaders'
@import 'requests'
@import 'tourcard'
@import 'confirmation'
@import 'gameplay'

Resources
├── app.js
├── app.jss
...

.user-info
bottom: 1
color: #333
font-size: 11
font-weight: bold
height: auto
left: 0
shadowColor: #fff
shadowOffset-x: 0
shadowOffset-y: -1
text-align: center
width: 92

SASS

DRY it up. Nesting
.user-info
bottom: 1
color: #333
font:
size: 11
weight: bold
height: auto
left: 0
shadowColor: #fff
shadowOffset:
x: 0
y: '-1'
text-align: center
width: 92

SASS

DRY it up. Mixins
=button
height: 40
width: 200

#buttonOne
+button
top: 10

#buttonTwo
+button
top: 60

SASS

DRY it up. Mixins with params
=bottom-right($height: 40, $width: 200)
height: $size
width: $size
right: 0
bottom: 0

#buttonOne
+bottom-right

#buttonTwo
+bottom-right(50, 300)

SASS

DRY it up. @extend
.button
height: 40
width: 200

#buttonOne
@extend .button
top: 10

#buttonTwo
@extend .button
top: 60

SASS

DRY it up. @extend
.button, #buttonOne, #buttonTwo {
height: 40;
width: 200;
}

#buttonOne {
width: 200;
}
#buttonTwo {

One less class in our .js
top: 60
}

JSS

Craft themes with color functions.

variables
$button-base: #a7a7a7

#buttonOne
color: $button-base
title: "Button 1"

#buttonTwo
color: $button-base
title: "Button 2"

SASS

color functions
$button-base: #a7a7a7

#buttonOne
color: $button-base
title: "Button 1"

#buttonTwo
color: darken($button-base, 20%)
title: "Button 2"

SASS

more color functions
hue(#cc3) # => 60deg
saturation(#cc3) # => 60%
lightness(#cc3) # => 50%

adjust-hue(#cc3, 20deg) # => #9c3
saturate(#cc3, 10%) # => #d9d926
desaturate(#cc3, 10%) # => #bfbf40
lighten(#cc3, 10%) # => #d6d65c
darken(#cc3, 10%) # => #a3a329

grayscale(#cc3) # => desaturate(#cc3, 100%) = #808080
complement(#cc3) # => adjust-hue(#cc3, 180deg) = #33c

mix(#cc3, #00f) # => #e56619
mix(#cc3, #00f, 10%) # => #f91405
mix(#cc3, #00f, 90%) # => #d1b72d

SASS

even more color functions
mix(rgba(51, 255, 51, 0.75), #f00) # => rgba(178, 95, 19, 0.875)
mix(rgba(51, 255, 51, 0.90), #f00) # => rgba(163, 114, 22, 0.95)

alpha(rgba(51, 255, 51, 0.75)) # => 0.75
opacity(rgba(51, 255, 51, 0.75)) # => 0.75
with alpha support!
opacify(rgba(51, 255, 51, 0.75), 0.1) # => rgba(51, 255, 51, 0.85)
fade-in(rgba(51, 255, 51, 0.75), 0.1) # => rgba(51, 255, 51, 0.85)

transparentize(rgba(51, 255, 51, 0.75), 0.1) # => rgba(51, 255, 51, 0.65)
fade-out(rgba(51, 255, 51, 0.75), 0.1) # => rgba(51, 255, 51, 0.65)

SASS

Building a hybrid native+web app?

Share your stylesheet variables!

No more vendor namespaces.
Selector inheritance.
URL helpers.
So much more.

Isn’t she Sassy, folks?

GET
THE
BOOK.

http://wynn.fm/ti-sass

Save 40% and get early access!

sass40

Sadly, sass100 is not a valid code.

http://wynn.fm/ti-sass

... are really ViewControllers.

So we create View factories...

...and factories that make miniature
models of factories.

height: 40

Look familiar?
width: 200
top: 10

button.addEventListener 'click', (e) ->
alert "Oooh, that tickles!"

COFFEESCRIPT

So how do you manufacture your own views?

MyApp.Views.createLoginWindow = (opts={}) ->

window = Ti.UI.createWindow(opts)

height: 40
width: 200
top: 10
window.add button

# methods
say = (msg) ->
alert(msg)

# event handlers
button.addEventListener 'click', -> say('hello')

window

COFFEESCRIPT



height: 40
width: 200 Create the factory method in
the appropriate namespace.
top: 10
window.add button

# methods
say = (msg) ->
alert(msg)

# event handlers

window

COFFEESCRIPT



height: 40
width: 200 Compose the view from
top: 10
window.add button Titanium types or others of
# methods your own
say = (msg) ->
alert(msg)

# event handlers

window

COFFEESCRIPT



height: 40
width: 200
top: 10
window.add button Methods in familiar place
# methods
say = (msg) ->
alert(msg)

# event handlers

window

COFFEESCRIPT



height: 40
width: 200
top: 10
window.add button And event handlers...
# methods
say = (msg) ->
alert(msg)

# event handlers

window

COFFEESCRIPT



height: 40
width: 200
top: 10
window.add button Return your view
# methods
say = (msg) ->
alert(msg)

# event handlers

window

COFFEESCRIPT


@course,
@playingFor='brag',

serialize: ->

deserialize: (data) ->

save: ->

resume: ->

dataForSubmit: () ->

submit: (error) ->

...

COFFEESCRIPT

CoffeeScript class
class GolfStatus.API

# Initialize with login and password
constructor: (@login, @password) ->

COFFEESCRIPT

URI building

...

# Build the full API URI for a request
requestURI: (path, query={}) ->

uri = "#{GolfStatus.API_ENDPOINT}#{path}.json?"

uri

COFFEESCRIPT

HTTP Request building
# Common request handling across all verbs
request: (path, options, authenticated=true) ->
# Default to GET
options.method ?= 'GET'
options.query ?= {}
options.success ?= -> Ti.API.info
options.error ?= -> Ti.API.error

xhr = Ti.Network.createHTTPClient()
xhr.onreadystatechange = (e) ->
...
# Default event handlers
# Basic auth
# other common stuff

...

if options.body
data = JSON.stringify(options.body)
Ti.API.debug data
xhr.send(data)
else
xhr.send()

COFFEESCRIPT

High level methods for HTTP verbs
# High level method for GET requests
get: (path, options, authenticated=true) ->
options.method = 'GET'
@request path, options, authenticated

# High level method for POST requests
post: (path, options, authenticated=true) ->
options.method = 'POST'

# High level method for DELETE requests
delete: (path, options, authenticated=true) ->
options.method = 'DELETE'

COFFEESCRIPT

Higher level API methods
# ### Authenticate the user ###
authenticate: (options) ->
Ti.API.debug "GolfStatus.API.authenticate"
@get '/me', options

# ### Logout the user ###
logout: (options) ->
Ti.API.debug "GolfStatus.API.logout"
@delete '/logout', options

# ### Forgot password
forgotPassword: (email, options) ->
Ti.API.debug "GolfStatus.API.forgotPassword"
options.query = {}
options.query.email = email
@post '/passwords', options, false

# ### Convenience method to get current user info ###
me: (options) ->
Ti.API.debug "GolfStatus.API.me"
@authenticate options

COFFEESCRIPT

.
├── Resources # Titanium root
│   └── vendor # JavaScript frameworks
├── src # CoffeeScript root
│   └── golf_status # App root
│   ├── models
│   └── views
│   ├── account # App domains
│   ├── activity
│   ├── courses
│   ├── leaderboard
│   └── play
└── stylesheets # Sass

GolfStatus =
Models: {}
Views:
Account: {}
Activity: {}
Courses: {}
Leaderboard: {}
Play: {}

Ti.include('vendor/date.js')
Ti.include('vendor/underscore.js')
Ti.include('golf_status.js')

GolfStatus.App.init()

COFFEESCRIPT

GolfStatus =
Models: {}
Views: Set up your namespaces
Account: {}
Activity: {}
Courses: {}
Leaderboard: {}
Play: {}



COFFEESCRIPT

GolfStatus =
Models: {}
Views:
Account: {}
Activity: {}
Courses: {}

third party frameworks
Leaderboard: {}
Play: {}



COFFEESCRIPT

GolfStatus =
Models: {}
Views:
Account: {}
Activity: {}
Courses: {}
Leaderboard: {}
Play: {}


GolfStatus.App.init() All of our app in just one file

COFFEESCRIPT

GolfStatus =
Models: {}
Views:
Account: {}
Activity: {}
Courses: {}
Leaderboard: {}
Play: {}


GolfStatus.App.init() Fire up the app and first window

COFFEESCRIPT

Lean app.js makes for flexibility

Tapping through to test deep screens bites!

# GolfStatus.App.init()

window = GolfStatus.Views.Play.createGameWindow()
window.open()

Comment out init and
fire up the deepest view.

COFFEESCRIPT

run-iphone:
& @DEVICE_TYPE=iphone make run

test-iphone:
& @DEVICE_TYPE=iphone make test

run-ipad:
& @DEVICE_TYPE=ipad make run

test-ipad:
& @DEVICE_TYPE=ipad make test

run:
& @if [ "${DEVICE_TYPE}" == "" ]; then
& & echo "Please run "make run-[iphone|ipad]" instead.";
& & exit 1;
& fi
& @mkdir -p ${PROJECT_ROOT}/${PROJECT_NAME}/Resources/test/
& @echo "" > ${PROJECT_ROOT}/${PROJECT_NAME}/Resources/test/enabled.js
& @make launch-titanium

guilhermechapiewski (Guilherme Chapiewski)

http://wynn.fm/g9

I'm a Rubyist, so I speak

rake

def compile_sass
puts "Compiling stylesheets".blue
input = "stylesheets/app.sass"
output = "Resources/app.jss"
system "sass --compass -C -t expanded #{input} > #{output}"
end

RAKEFILE

def compile_coffee
paths = `find src/golf_status -name '*.coffee'`.split("n")
compilation = (
puts "Compiling CoffeeScript (golf_status.js)".blue
output = "Resources/golf_status.js"
system "coffee --join #{output} -b -c #{paths.join(' ')}" and
puts "Compiling CoffeeScript (app.js)".blue
system "coffee -p --bare src/app.coffee > Resources/app.js"
)

if compilation
puts "Successfully compiled CoffeeScript".green
else
puts "Error compiling CoffeeScript".red
end
compilation
end

RAKEFILE

def compile_coffee
compilation = (
system "coffee --join #{output} -b -c #{paths.join(' ')}"
)

if compilation
else
end
compilation
end

RAKEFILE Compile App namespaces to single file

def compile_coffee
compilation = (
system "coffee --join #{output} -b -c #{paths.join(' ')}"
)

if compilation
else
end
compilation
end

RAKEFILE Compile app.js which includes the app library

def build(options={})
return unless compile
options[:device] ||= 'iphone'
puts "Building with Titanium...
(DEVICE_TYPE:#{options[:device]})".blue
sh %Q{bash -c "#{TI_BUILD} run #{PROJECT_ROOT}/ #{IPHONE_SDK_VERSION}
#{APP_ID} #{APP_NAME} #{APP_DEVICE}"
| perl -pe 's/^[DEBUG].*$/e[35m$&e[0m/g;s/^[INFO].*$/e[36m
$&e[0m/g;s/^[WARN].*$/e[33m$&e[0m/g;s/^[ERROR].*$/e[31m
$&e[0m/g;'}

end

RAKEFILE

$&e[0m/g;'}

end

RAKEFILE Build with Titanium Python command line

$&e[0m/g;'}

end

Pipe to PERL for some colored terminal goodness

RAKEFILE

Underscore.js
https://github.com/documentcloud/underscore

From Jeremy Ashkenas,
the creator of CoffeeScript.

Don't Repeat Yourself Not Repeating Yourself

Ti GEM
Automating these patterns. A work in progress.

ti new codestrong-app com.codestrong.app iphone

├── Coffeefile
├── Guardfile
├── LICENSE
├── Rakefile
├── Readme.mkd
├── Resources
│   ├── app.js
│   ├── app.jss
│   ├── images
│   │   ├── KS_nav_ui.png
│   │   └── KS_nav_views.png
│   ├── lsrc.js
│   └── vendor
├── app
│   ├── app.coffee
│   └── lsrc
│   ├── api.coffee
│   ├── app.coffee
│   ├── helpers
│   │   └── application.coffee
│   ├── stylesheets
│   │   ├── app.sass
│   │   └── partials
│   └── views
├── build
├── config
│   └── config.rb
├── docs
├── spec
│   ├── app_spec.coffee
│   ├── helpers
│   └── views
├── tiapp.xml
└── tmp

ti generate <model/controller/view> <name>

Golf.Views.GamePlay.createScoreCardView = (options) ->
view = Ti.UI.createView (options)
view

ti scaffold <window/tabgroup/view> <domain> <name>

ti build <all/iphone/android/ipad/desktop/>

Ti GEM

@revans @baldrailers

@rupakg

Jasmine
https://github.com/akahigeg/jasmine-titanium

xib2js
https://github.com/daoki2/xib2js

js2coffee
http://ricostacruz.com/js2coffee/

QUESTIONS?

http://spkr8.com/t/8342

Wynn Netherland: Accelerating Titanium Development with CoffeeScript, Compass, and Sass

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