# BubbleWrap for RubyMotion

A collection of helpers and wrappers used to wrap CocoaTouch code and provide more Ruby like APIs.

## Installation

```ruby
gem install bubble-wrap
```

## Setup

1. Edit the Rakefile of your RubyMotion project and add the following require line.
```ruby
require 'bubble-wrap'
```
2. Now, you can use BubbleWrap extension in your app:
```ruby
class AppDelegate
  def application(application, didFinishLaunchingWithOptions:launchOptions)
    puts "#{App.name} (#{documents_path})"
    true
  end
end
```

For a more complete list of helper/wrapper descriptions and more details, see the [wiki](https://github.com/mattetti/BubbleWrap/wiki).

## HTTP

`BubbleWrap::HTTP` wraps `NSURLRequest`, `NSURLConnection` and friends to provide Ruby developers with a more familiar and easier to use API.
The API uses async calls and blocks to stay as simple as possible.

Usage example:

```ruby
BubbleWrap::HTTP.get("https://api.github.com/users/mattetti") do |response|
  p response.body.to_str
end
```

```ruby
BubbleWrap::HTTP.get("https://api.github.com/users/mattetti", {credentials: {username: 'matt', password: 'aimonetti'}}) do |response|
  p response.body.to_str # prints the response's body
end
```

```ruby
data = {first_name: 'Matt', last_name: 'Aimonetti'}
BubbleWrap::HTTP.post("http://foo.bar.com/", {payload: data}) do |response|
  if response.ok?
    json = BubbleWrap::JSON.parse(response.body.to_str)
    p json['id']
  elsif response.status_code.to_s =~ /40\d/
    alert("Login failed") # helper provided by the kernel file in this repo.
  else
    alert(response.error_message)
  end
end
```

## JSON

`BubbleWrap::JSON` wraps `NSJSONSerialization` available in iOS5 and offers the same API as Ruby's JSON std lib.

## Kernel

A collection of useful methods used often in my RubyMotion apps.

Examples:
```ruby
> iphone?
# true
> ipad?
# false
> orientation
# :portrait
> simulator?
# true
> documents_path
# "/Users/mattetti/Library/Application Support/iPhone Simulator/5.0/Applications/EEC6454E-1816-451E-BB9A-EE18222E1A8F/Documents"
```

## App

A module allowing developers to store global states and also provides a
persistence layer.

## NSUserDefaults

Helper methods added to the class repsonsible for user preferences.

## NSIndexPath

Helper methods added to give `NSIndexPath` a bit more or a Ruby
interface.

## Gestures

Extra methods on `UIView` for working with gesture recognizers. A gesture recognizer can be added using a normal Ruby block, like so:

```ruby
    view.whenTapped do
      UIView.animateWithDuration(1,
        animations:lambda {
          # animate
          # @view.transform = ...
        })
    end
```

There are similar methods for pinched, rotated, swiped, panned, and pressed (for long presses). All of the methods return the actual recognizer object, so it is possible to set the delegate if more fine-grained control is needed.

## UIButton

Helper methods to give `UIButton` a Ruby-like interface. Ex:

```ruby
button.when(UIControlEventTouchUpInside) do
  self.view.backgroundColor = UIColor.redColor
end
```

## NSNotificationCenter

Helper methods to give NSNotificationCenter a Ruby-like interface:

```ruby
def viewWillAppear(animated)
  notification_center.observe self, UIApplicationWillEnterForegroundNotification do
    loadAndRefresh
  end
  
  notification_center.observe self, ReloadNotification do
    loadAndRefresh
  end
end

def viewWillDisappear(animated)
  notification_center.unobserve self
end

def reload
  notification_center.post ReloadNotification
end
```