# 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'
```
Note: **DON'T** use `app.files =` in your Rakefile to set up your files once you've required BubbleWrap.
Make sure to append onto the array or use `+=`.

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.

## Device

A collection of useful methods about the current device:

Examples:
```ruby
> Device.iphone?
# true
> Device.ipad?
# false
> Device.orientation
# :portrait
> Device.simulator?
# true
```

## App

A module with useful methods related to the running application

```ruby
> App.documents_path
# "/Users/mattetti/Library/Application Support/iPhone Simulator/5.0/Applications/EEC6454E-1816-451E-BB9A-EE18222E1A8F/Documents"
> App.resources_path
# "/Users/mattetti/Library/Application Support/iPhone Simulator/5.0/Applications/EEC6454E-1816-451E-BB9A-EE18222E1A8F/testSuite_spec.app"
> App.name
# "testSuite"
> App.identifier
# "io.bubblewrap.testSuite"
> App.alert("BubbleWrap is awesome!")
# creates and shows an alert message.
> App.run_after(0.5) {  p "It's #{Time.now}"   }
# Runs the block after 0.5 seconds.
```

## NSUserDefaults

Helper methods added to the class repsonsible for user preferences.

## NSIndexPath

Helper methods added to give `NSIndexPath` a bit more of 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)
  @foreground_observer = notification_center.observe UIApplicationWillEnterForegroundNotification do |notification|
    loadAndRefresh
  end
  
  @reload_observer notification_center.observe ReloadNotification do |notification|
    loadAndRefresh
  end
end

def viewWillDisappear(animated)
  notification_center.unobserve @foreground_observer
  notification_center.unobserve @reload_observer
end

def reload
  notification_center.post ReloadNotification
end
```