/*
* jQuery touch and gesture detection.
*
* identifies support for touch and gestures.
*
* Usage:
*
* if ($fn.browserTouchSupport.touches) {
* // Touch specific interactions
* }
*
* Support:
* bool $.fn.browserTouchSupport.touches // all touches supported
* bool $.fn.browserTouchSupport.gestures // all gestures supported
* bool $.fn.browserTouchSupport.touchstart
* bool $.fn.browserTouchSupport.touchmove
* bool $.fn.browserTouchSupport.touchend
* bool $.fn.browserTouchSupport.gesturestart
* bool $.fn.browserTouchSupport.gesturechange
* bool $.fn.browserTouchSupport.gestureend
*
*
* @author Jeffrey Sambells <jeff@tropicalpixels.com>
* @license The MIT License
*
* Copyright (c) 2010 Jeffrey Sambells / TropicalPixels
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
(function($) {

var support = {};

var events = [
'touchstart',
'touchmove',
'touchend',
'gesturestart',
'gesturechange',
'gestureend'
];

var el = document.createElement('div');

for( i in events ) {
var eventName = events[i];
eventName = 'on' + eventName;
var isSupported = (eventName in el);
if (!isSupported) {
el.setAttribute(eventName, 'return;');
isSupported = typeof el[eventName] == 'function';
}
support[events[i]] = isSupported;
}

support.touches =
support.touchstart
&& support.touchend
&& support.touchmove;

support.gestures =
support.gesturestart &&
support.gesturechange &&
support.gestureend;

$.fn.browserTouchSupport = support;

})(jQuery);