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// Zepto.js
// (c) 2010-2012 Thomas Fuchs
// Zepto.js may be freely distributed under the MIT license.
;(function($){
if ($.os.ios) {
var gesture = {}, gestureTimeout
function parentIfText(node){
return 'tagName' in node ? node : node.parentNode
}
$(document).bind('gesturestart', function(e){
var now = Date.now(), delta = now - (gesture.last || now)
gesture.target = parentIfText(e.target)
gestureTimeout && clearTimeout(gestureTimeout)
gesture.e1 = e.scale
gesture.last = now
}).bind('gesturechange', function(e){
gesture.e2 = e.scale
}).bind('gestureend', function(e){
if (gesture.e2 > 0) {
Math.abs(gesture.e1 - gesture.e2) != 0 && $(gesture.target).trigger('pinch') &&
$(gesture.target).trigger('pinch' + (gesture.e1 - gesture.e2 > 0 ? 'In' : 'Out'))
gesture.e1 = gesture.e2 = gesture.last = 0
} else if ('last' in gesture) {
gesture = {}
}
})
;['pinch', 'pinchIn', 'pinchOut'].forEach(function(m){
$.fn[m] = function(callback){ return this.bind(m, callback) }
})
}
})(Zepto)
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