js/vendor/jquery.scrollstop.js

/*!
* jQuery Scrollstop Plugin v1.1.0
* https://github.com/ssorallen/jquery-scrollstop
*/
(function($) {
// $.event.dispatch was undocumented and was deprecated in jQuery 1.7[1]. It
// was replaced by $.event.handle in jQuery 1.9.
//
// Use the first of the available functions to support jQuery <1.8.
//
// [1] https://github.com/jquery/jquery-migrate/blob/master/src/event.js#L25
var dispatch = $.event.dispatch || $.event.handle;
var special = $.event.special,
uid1 = 'D' + (+new Date()),
uid2 = 'D' + (+new Date() + 1);
special.scrollstart = {
setup: function(data) {
var _data = $.extend({
latency: special.scrollstop.latency
}, data);
var timer,
handler = function(evt) {
var _self = this,
_args = arguments;
if (timer) {
clearTimeout(timer);
} else {
evt.type = 'scrollstart';
dispatch.apply(_self, _args);
}
timer = setTimeout(function() {
timer = null;
}, _data.latency);
};
$(this).bind('scroll', handler).data(uid1, handler);
},
teardown: function() {
$(this).unbind('scroll', $(this).data(uid1));
}
};
special.scrollstop = {
latency: 250,
setup: function(data) {
var _data = $.extend({
latency: special.scrollstop.latency
}, data);
var timer,
handler = function(evt) {
var _self = this,
_args = arguments;
if (timer) {
clearTimeout(timer);
}
timer = setTimeout(function() {
timer = null;
evt.type = 'scrollstop';
dispatch.apply(_self, _args);
}, _data.latency);
};
$(this).bind('scroll', handler).data(uid2, handler);
},
teardown: function() {
$(this).unbind('scroll', $(this).data(uid2));
}
};
})(jQuery);