File "jquery.jcarousel-autoscroll.js"
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/*! jCarousel - v0.3.4 - 2015-09-23
* http://sorgalla.com/jcarousel/
* Copyright (c) 2006-2015 Jan Sorgalla; Licensed MIT */
(function($, document) {
'use strict';
var hiddenProp,
visibilityChangeEvent,
visibilityChangeEventNames = {
hidden: 'visibilitychange',
mozHidden: 'mozvisibilitychange',
msHidden: 'msvisibilitychange',
webkitHidden: 'webkitvisibilitychange'
}
;
$.each(visibilityChangeEventNames, function(key, val) {
if (typeof document[key] !== 'undefined') {
hiddenProp = key;
visibilityChangeEvent = val;
return false;
}
});
$.jCarousel.plugin('jcarouselAutoscroll', {
_options: {
target: '+=1',
interval: 3000,
autostart: true
},
_timer: null,
_started: false,
_init: function () {
this.onDestroy = $.proxy(function() {
this._destroy();
this.carousel()
.one('jcarousel:createend', $.proxy(this._create, this));
}, this);
this.onAnimateEnd = $.proxy(this._start, this);
this.onVisibilityChange = $.proxy(function() {
if (document[hiddenProp]) {
this._stop();
} else {
this._start();
}
}, this);
},
_create: function() {
this.carousel()
.one('jcarousel:destroy', this.onDestroy);
$(document)
.on(visibilityChangeEvent, this.onVisibilityChange);
if (this.options('autostart')) {
this.start();
}
},
_destroy: function() {
this._stop();
this.carousel()
.off('jcarousel:destroy', this.onDestroy);
$(document)
.off(visibilityChangeEvent, this.onVisibilityChange);
},
_start: function() {
this._stop();
if (!this._started) {
return;
}
this.carousel()
.one('jcarousel:animateend', this.onAnimateEnd);
this._timer = setTimeout($.proxy(function() {
this.carousel().jcarousel('scroll', this.options('target'));
}, this), this.options('interval'));
return this;
},
_stop: function() {
if (this._timer) {
this._timer = clearTimeout(this._timer);
}
this.carousel()
.off('jcarousel:animateend', this.onAnimateEnd);
return this;
},
start: function() {
this._started = true;
this._start();
return this;
},
stop: function() {
this._started = false;
this._stop();
return this;
}
});
}(jQuery, document));