/* hider */
(function (window){
	
    var FWDMHider = function(isMobile_bl, screenToTest, hideDelay){
    	
    	var _s = this;
    	var prototype = FWDMHider.prototype;
   
    	_s.screenToTest = screenToTest;
    	_s.hideDelay = hideDelay;
    	_s.globalX = 0;
    	_s.globalY = 0;
	
		_s.currentTime;
    	_s.checkIntervalId_int;
    	
    	_s.dispatchOnceShow_bl = true;
    	_s.dispatchOnceHide_bl = false;
    	_s.isMobile_bl = isMobile_bl;
    	_s.isStopped_bl = true;
    	_s.hasPointerEvent_bl = FWDMUtils.hasPointerEvent;
    	
		_s.init = function(){};
	
		_s.start = function(){
			_s.currentTime = new Date().getTime();
			_s.checkIntervalId_int = setInterval(_s.update, 100);
			_s.addMouseOrTouchCheck();
			_s.isStopped_bl = false;
		};
		
		_s.stop = function(){
			clearInterval(_s.checkIntervalId_int);
			_s.isStopped_bl = true;
			_s.removeMouseOrTouchCheck();
		};
		
		_s.addMouseOrTouchCheck = function(){	
			if(_s.isMobile_bl){
				if(_s.hasPointerEvent_bl){
					_s.screenToTest.screen.addEventListener("MSPointerDown", _s.onMouseOrTouchUpdate);
					_s.screenToTest.screen.addEventListener("MSPointerMove", _s.onMouseOrTouchUpdate);
				}else{
					_s.screenToTest.screen.addEventListener("touchstart", _s.onMouseOrTouchUpdate);
				}
			}else if(_s.screenToTest.screen.addEventListener){
				_s.screenToTest.screen.addEventListener("mousemove", _s.onMouseOrTouchUpdate);
			}else if(_s.screenToTest.screen.attachEvent){
				_s.screenToTest.screen.attachEvent("onmousemove", _s.onMouseOrTouchUpdate);
			}
		};
		
		_s.removeMouseOrTouchCheck = function(){	
			if(_s.isMobile_bl){
				if(_s.hasPointerEvent_bl){
					_s.screenToTest.screen.removeEventListener("MSPointerDown", _s.onMouseOrTouchUpdate);
					_s.screenToTest.screen.removeEventListener("MSPointerMove", _s.onMouseOrTouchUpdate);
				}else{
					_s.screenToTest.screen.removeEventListener("touchstart", _s.onMouseOrTouchUpdate);
				}
			}else if(_s.screenToTest.screen.removeEventListener){
				_s.screenToTest.screen.removeEventListener("mousemove", _s.onMouseOrTouchUpdate);
			}else if(_s.screenToTest.screen.detachEvent){
				_s.screenToTest.screen.detachEvent("onmousemove", _s.onMouseOrTouchUpdate);
			}
		};
		
		_s.onMouseOrTouchUpdate = function(e){
			var viewportMouseCoordinates = FWDMUtils.getViewportMouseCoordinates(e);	
			_s.currentTime = new Date().getTime();
			_s.globalX = viewportMouseCoordinates.screenX;
			_s.globalY = viewportMouseCoordinates.screenY;
		};
	
		_s.update = function(e){
			if(new Date().getTime() > _s.currentTime + _s.hideDelay){
				if(_s.dispatchOnceShow_bl){	
					_s.dispatchEvent(FWDMHider.HIDE);
					_s.dispatchOnceHide_bl = true;
					_s.dispatchOnceShow_bl = false;	
				}
			}else{
				if(_s.dispatchOnceHide_bl){
					_s.dispatchEvent(FWDMHider.SHOW);
					_s.dispatchOnceHide_bl = false;
					_s.dispatchOnceShow_bl = true;
				}
			}
		};

		_s.reset = function(){
			_s.currentTime = new Date().getTime();
			_s.dispatchEvent(FWDMHider.SHOW);
		};
		
		/* destroy */
		_s.destroy = function(){
		
			_s.removeMouseOrTouchCheck();
			clearInterval(_s.checkIntervalId_int);
			
			_s.screenToTest = null;
			
			screenToTest = null;
			
			_s.init = null;
			_s.start = null;
			_s.stop = null;
			_s.addMouseOrTouchCheck = null;
			_s.removeMouseOrTouchCheck = null;
			_s.onMouseOrTouchUpdate = null;
			_s.update = null;
			_s.reset = null;
			_s.destroy = null;
			
			prototype.destroy();
			prototype = null;
			_s = null;
			FWDMHider.prototype = null;
		};
		
		_s.init();
     };
     
	 FWDMHider.HIDE = "hide";
	 FWDMHider.SHOW = "show";
	 
	 FWDMHider.setPrototype = function(){
		 FWDMHider.prototype = new FWDMEventDispatcher();
	 };
	 

	 window.FWDMHider = FWDMHider;
}(window));