package lightbox
{
	import flash.events.EventDispatcher;
	import flash.events.StatusEvent;
	import flash.external.ExtensionContext;
	import flash.system.Capabilities;

	
	/**
	 * This class defines a simple AIR Native Extension exposing a set of simple
	 * and useful Android native facilities:
	 * 
	 * <li>sharing (image or text)</li>
	 * <li>SMS sending</li>
	 * <li>Toast messages</li>
	 * 
	 * 
	 * @author mr_archano (twitter: mr_archano)
	 * 
	 */
	public class AndroidExtensions
	{
		/////////////////////////////////////////
		// Static fields
		//
		
		protected static var _dispatcher:EventDispatcher = new EventDispatcher();
		protected static var _context:ExtensionContext = null;
		
		/**
		 * Used to prompt an Android Toast message on the screen.
		 * @param text			the text to be shown.
		 * @param showForLong	set the duration of the toast. 
		 * 						If true, the value <code>Toast.LENGTH_LONG</code> is used.
		 * 						<code>Toast.LENGTH_SHORT</code> otherwise.
		 * 
		 */
		public static function toast(text:String, showForLong:Boolean = false) : void
		{
			if( isSupported )
				context.call("toast", text, showForLong);
			else
				trace(	"DEBUG: called AndroidExtensions.toast\n" +
					"- text: "+text+"\n" +
					"- showForLong: "+showForLong+"\n");
		}

		public static function openURL(text:String) : void
		{
			if( isSupported )
				context.call("openURL", text);
			else
				trace(	"DEBUG: called AndroidExtensions.toast\n" +
					"- text: "+text);
		}
		
		public static function getVersion() : String
		{
			if( isSupported ) 
				return context.call("getVersion") as String;
			else
				trace(	"DEBUG: called AndroidExtensions.GetVersion");
				return "not Supported";
		}
		
		
		
		/**
		 * Used to dispose the extension.
		 * 
		 */
		public static function dispose() : void
		{
			if(_context)
			{
				_context.removeEventListener(StatusEvent.STATUS, onStatusEventHandler);
				_context.dispose();
			}
			_context = null;
		}
		
		/////////////////////////////////////////
		// Event handling functions
		//
		
		public static function addEventListener(type:String, listener:Function) : void
		{
			_dispatcher.addEventListener(type, listener);
		}
		
		public static function removeEventListener(type:String, listener:Function) : void
		{
			_dispatcher.removeEventListener(type,listener);
		}
		
		
		
		
		/////////////////////////////////////////
		// Protected functions
		//
		
		protected static function get context() : ExtensionContext 
		{
			if(!_context)
			{
				_context = ExtensionContext.createExtensionContext("lightbox.ane.androidextensions","");
				_context.addEventListener(StatusEvent.STATUS, onStatusEventHandler);
			}
			return _context;
		}
		
		protected static function get isSupported() : Boolean
		{
			return (Capabilities.os.indexOf("Linux") >= 0);
		}
		
		
		/////////////////////////////////////////
		// Callbacks
		//
		
		protected static function onStatusEventHandler(event:StatusEvent) : void
		{
			if(event == null || event.level == null)
				return;
			
			// debug
			trace("[AndroidExtensions.onStatusHandler] level: "+event.level);
			
			// handle StatusEvent
			switch(event.level)
			{
				case AndroidExtensionsEvent.TYPE_ERROR:
					onError();
					break;
				/* TODO: add cases here ... */
			}
		}
		
		protected static function onError() : void
		{
			_dispatcher.dispatchEvent(new AndroidExtensionsEvent(AndroidExtensionsEvent.TYPE_ERROR));
		}
	}
}

package lightbox
{
	import flash.events.Event;
	
	public class AndroidExtensionsEvent extends Event
	{
		public static const TYPE_ERROR:String = "error";
		
		public function AndroidExtensionsEvent(type:String, bubbles:Boolean=true, cancelable:Boolean=false)
		{
			super(type, bubbles, cancelable);
		}
		
		override public function clone():Event
		{
			return new AndroidExtensionsEvent(this.type, this.bubbles, this.cancelable);
		}
		
		
	}
}

<extension xmlns="http://ns.adobe.com/air/extension/3.1">
  <id>lightbox.ane.androidextensions</id>
  <versionNumber>1.1.0</versionNumber>
  <platforms>
	<platform name="Android-ARM">
      <applicationDeployment>
        <nativeLibrary>ANElib.jar</nativeLibrary>
        <initializer>lightbox.AndroidExtensions</initializer>
        <finalizer>lightbox.AndroidExtensions</finalizer>
      </applicationDeployment>
    </platform>
  </platforms>
</extension>