var Class = require('../../utils/Class'); 
var InputEvents = require('../events'); 
var NOOP = require('../../utils/NOOP'); 
var TouchManager = new Class({ 
initialize: function TouchManager(inputManager){ 
this.manager = inputManager; 
this.capture = true ; 
this.enabled = false ; 
this.target; 
this.onTouchStart = NOOP; 
this.onTouchStartWindow = NOOP; 
this.onTouchMove = NOOP; 
this.onTouchEnd = NOOP; 
this.onTouchEndWindow = NOOP; 
this.onTouchCancel = NOOP; 
this.onTouchCancelWindow = NOOP; 
this.onTouchOver = NOOP; 
this.onTouchOut = NOOP; 
inputManager.events.once(InputEvents.MANAGER_BOOT, this.boot, this); 
} 
,
boot: function (){ 
var config = this.manager.config; 
this.enabled = config.inputTouch; 
_AN_Write_target('target', this, false , config.inputTouchEventTarget); 
this.capture = config.inputTouchCapture; 
if (!(_AN_Read_target('target', this))) { 
_AN_Write_target('target', this, false , this.manager.game.canvas); 
} 
if (config.disableContextMenu) { 
this.disableContextMenu(); 
} 
if (this.enabled && (_AN_Read_target('target', this))) { 
this.startListeners(); 
} 
} 
,
disableContextMenu: function (){ 
document.body.addEventListener('contextmenu', function (event){ 
event.preventDefault(); 
return false ; 
} 
); 
return this; 
} 
,
startListeners: function (){ 
var _this = this; 
var canvas = this.manager.canvas; 
var autoFocus = (window && window.focus && this.manager.game.config.autoFocus); 
this.onTouchStart = function (event){ 
if (autoFocus) { 
window.focus(); 
} 
if (!event.defaultPrevented && _this.enabled && _this.manager && _this.manager.enabled) { 
_this.manager.onTouchStart(event); 
if (_this.capture && event.cancelable && _AN_Read_target('target', event) === canvas) { 
event.preventDefault(); 
} 
} 
} 
; 
this.onTouchStartWindow = function (event){ 
if (!event.defaultPrevented && _this.enabled && _this.manager && _this.manager.enabled && _AN_Read_target('target', event) !== canvas) { 
_this.manager.onTouchStart(event); 
} 
} 
; 
this.onTouchMove = function (event){ 
if (!event.defaultPrevented && _this.enabled && _this.manager && _this.manager.enabled) { 
_this.manager.onTouchMove(event); 
if (_this.capture && event.cancelable) { 
event.preventDefault(); 
} 
} 
} 
; 
this.onTouchEnd = function (event){ 
if (!event.defaultPrevented && _this.enabled && _this.manager && _this.manager.enabled) { 
_this.manager.onTouchEnd(event); 
if (_this.capture && event.cancelable && _AN_Read_target('target', event) === canvas) { 
event.preventDefault(); 
} 
} 
} 
; 
this.onTouchEndWindow = function (event){ 
if (!event.defaultPrevented && _this.enabled && _this.manager && _this.manager.enabled && _AN_Read_target('target', event) !== canvas) { 
_this.manager.onTouchEnd(event); 
} 
} 
; 
this.onTouchCancel = function (event){ 
if (!event.defaultPrevented && _this.enabled && _this.manager && _this.manager.enabled) { 
_this.manager.onTouchCancel(event); 
if (_this.capture) { 
event.preventDefault(); 
} 
} 
} 
; 
this.onTouchCancelWindow = function (event){ 
if (!event.defaultPrevented && _this.enabled && _this.manager && _this.manager.enabled) { 
_this.manager.onTouchCancel(event); 
} 
} 
; 
this.onTouchOver = function (event){ 
if (!event.defaultPrevented && _this.enabled && _this.manager && _this.manager.enabled) { 
_this.manager.setCanvasOver(event); 
} 
} 
; 
this.onTouchOut = function (event){ 
if (!event.defaultPrevented && _this.enabled && _this.manager && _this.manager.enabled) { 
_this.manager.setCanvasOut(event); 
} 
} 
; 
var target = _AN_Read_target('target', this); 
if (!target) { 
return ; 
} 
var passive = { 
passive: true }
; 
var nonPassive = { 
passive: false }
; 
target.addEventListener('touchstart', this.onTouchStart, (this.capture)? nonPassive: passive); 
target.addEventListener('touchmove', this.onTouchMove, (this.capture)? nonPassive: passive); 
target.addEventListener('touchend', this.onTouchEnd, (this.capture)? nonPassive: passive); 
target.addEventListener('touchcancel', this.onTouchCancel, (this.capture)? nonPassive: passive); 
target.addEventListener('touchover', this.onTouchOver, (this.capture)? nonPassive: passive); 
target.addEventListener('touchout', this.onTouchOut, (this.capture)? nonPassive: passive); 
if (window && this.manager.game.config.inputWindowEvents) { 
window.addEventListener('touchstart', this.onTouchStartWindow, nonPassive); 
window.addEventListener('touchend', this.onTouchEndWindow, nonPassive); 
window.addEventListener('touchcancel', this.onTouchCancelWindow, nonPassive); 
} 
this.enabled = true ; 
} 
,
stopListeners: function (){ 
var target = _AN_Read_target('target', this); 
target.removeEventListener('touchstart', this.onTouchStart); 
target.removeEventListener('touchmove', this.onTouchMove); 
target.removeEventListener('touchend', this.onTouchEnd); 
target.removeEventListener('touchcancel', this.onTouchCancel); 
target.removeEventListener('touchover', this.onTouchOver); 
target.removeEventListener('touchout', this.onTouchOut); 
if (window) { 
window.removeEventListener('touchstart', this.onTouchStartWindow); 
window.removeEventListener('touchend', this.onTouchEndWindow); 
} 
} 
,
destroy: function (){ 
this.stopListeners(); 
_AN_Write_target('target', this, false , null ); 
this.enabled = false ; 
this.manager = null ; 
} 
}
); 
module.exports = TouchManager;