content: /*
   * -----------------------------------------------------------------------
   * Copyright 2012 - Alistair Rutherford - www.netthreads.co.uk
   * -----------------------------------------------------------------------
   * 
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   * 
   *     http://www.apache.org/licenses/LICENSE-2.0
   * 
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   * 
   */
  
  package com.netthreads.gdx.app.layer;
  
  import com.badlogic.gdx.Gdx;
  import com.badlogic.gdx.Input.Keys;
  import com.netthreads.gdx.app.definition.AppEvents;
  import com.netthreads.libgdx.director.AppInjector;
  import com.netthreads.libgdx.director.Director;
  import com.netthreads.libgdx.scene.Layer;
  
  /**
   * Capture back/ESC key layer.
   * 
   */
  public class ControlLayer extends Layer
  {
  	/**
  	 * The one and only director.
  	 */
  	private Director director;
  
  	
  	/**
  	 * Create layer.
  	 * 
  	 * @param stage
  	 */
  	public ControlLayer()
  	{
  		director = AppInjector.getInjector().getInstance(Director.class);
  		
  		Gdx.input.setCatchBackKey(true);
  	}
  
  	/**
  	 * Catch escape key.
  	 * 
  	 */
  	@Override
  	public boolean keyDown(int keycode)
  	{
  		boolean handled = false;
  
  		if (keycode == Keys.BACK || keycode == Keys.ESCAPE)
  		{
  			director.sendEvent(AppEvents.EVENT_TRANSITION_TO_MENU_SCENE, this);
  
  			handled = true;
  		}
  
  		return handled;
  	}
  
  }
  