File "fastclick.js"
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/**
* FastClick event implementation. (removes 300ms delay on touch devices)
* Based on https://developers.google.com/mobile/articles/fast_buttons
*
* You may use it outside the Magnific Popup by calling just:
*
* $('.your-el').mfpFastClick(function() {
* console.log('Clicked!');
* });
*
* To unbind:
* $('.your-el').destroyMfpFastClick();
*
*
* Note that it's a very basic and simple implementation, it blocks ghost click on the same element where it was bound.
* If you need something more advanced, use plugin by FT Labs https://github.com/ftlabs/fastclick
*
*/
(function() {
var ghostClickDelay = 1000,
supportsTouch = 'ontouchstart' in window,
unbindTouchMove = function() {
_window.off('touchmove'+ns+' touchend'+ns);
},
eName = 'mfpFastClick',
ns = '.'+eName;
// As Zepto.js doesn't have an easy way to add custom events (like jQuery), so we implement it in this way
$.fn.mfpFastClick = function(callback) {
return $(this).each(function() {
var elem = $(this),
lock;
if( supportsTouch ) {
var timeout,
startX,
startY,
pointerMoved,
point,
numPointers;
elem.on('touchstart' + ns, function(e) {
pointerMoved = false;
numPointers = 1;
point = e.originalEvent ? e.originalEvent.touches[0] : e.touches[0];
startX = point.clientX;
startY = point.clientY;
_window.on('touchmove'+ns, function(e) {
point = e.originalEvent ? e.originalEvent.touches : e.touches;
numPointers = point.length;
point = point[0];
if (Math.abs(point.clientX - startX) > 10 ||
Math.abs(point.clientY - startY) > 10) {
pointerMoved = true;
unbindTouchMove();
}
}).on('touchend'+ns, function(e) {
unbindTouchMove();
if(pointerMoved || numPointers > 1) {
return;
}
lock = true;
e.preventDefault();
clearTimeout(timeout);
timeout = setTimeout(function() {
lock = false;
}, ghostClickDelay);
callback();
});
});
}
elem.on('click' + ns, function() {
if(!lock) {
callback();
}
});
});
};
$.fn.destroyMfpFastClick = function() {
$(this).off('touchstart' + ns + ' click' + ns);
if(supportsTouch) _window.off('touchmove'+ns+' touchend'+ns);
};
})();