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/**
 * jQuery CSS Customizable Scrollbar
 *
 * Copyright 2015, Yuriy Khabarov
 * Dual licensed under the MIT or GPL Version 2 licenses.
 *
 * If you found bug, please contact me via email <13real008@gmail.com>
 *
 * @author Yuriy Khabarov aka Gromo
 * @version 0.2.10
 * @url https://github.com/gromo/jquery.scrollbar/
 *
 */
;
(function (root, factory) {
    if (typeof define === 'function' && define.amd) {
        define(['jquery'], factory);
    } else {
        factory(root.jQuery);
    }
}(this, function ($) {
    'use strict';

    // init flags & variables
    var debug = false;

    var browser = {
        data: {
            index: 0,
            name: 'scrollbar'
        },
        macosx: /mac/i.test(navigator.platform),
        mobile: /android|webos|iphone|ipad|ipod|blackberry/i.test(navigator.userAgent),
        overlay: null,
        scroll: null,
        scrolls: [],
        webkit: /webkit/i.test(navigator.userAgent) && !/edge\/\d+/i.test(navigator.userAgent)
    };

    browser.scrolls.add = function (instance) {
        this.remove(instance).push(instance);
    };
    browser.scrolls.remove = function (instance) {
        while ($.inArray(instance, this) >= 0) {
            this.splice($.inArray(instance, this), 1);
        }
        return this;
    };

    var defaults = {
        "autoScrollSize": true,     // automatically calculate scrollsize
        "autoUpdate": true,         // update scrollbar if content/container size changed
        "debug": false,             // debug mode
        "disableBodyScroll": false, // disable body scroll if mouse over container
        "duration": 200,            // scroll animate duration in ms
        "ignoreMobile": true,      // ignore mobile devices
        "ignoreOverlay": true,     // ignore browsers with overlay scrollbars (mobile, MacOS)
        "scrollStep": 30,           // scroll step for scrollbar arrows
        "showArrows": false,        // add class to show arrows
        "stepScrolling": true,      // when scrolling to scrollbar mousedown position

        "scrollx": null,            // horizontal scroll element
        "scrolly": null,            // vertical scroll element

        "onDestroy": null,          // callback function on destroy,
        "onInit": null,             // callback function on first initialization
        "onScroll": null,           // callback function on content scrolling
        "onUpdate": null            // callback function on init/resize (before scrollbar size calculation)
    };


    var BaseScrollbar = function (container) {

        if (!browser.scroll) {
            browser.overlay = isScrollOverlaysContent();
            browser.scroll = getBrowserScrollSize();
            updateScrollbars();

            $(window).on('resize', function () {
                var forceUpdate = false;
                if (browser.scroll && (browser.scroll.height || browser.scroll.width)) {
                    var scroll = getBrowserScrollSize();
                    if (scroll.height !== browser.scroll.height || scroll.width !== browser.scroll.width) {
                        browser.scroll = scroll;
                        forceUpdate = true; // handle page zoom
                    }
                }
                updateScrollbars(forceUpdate);
            });
        }

        this.container = container;
        this.namespace = '.scrollbar_' + browser.data.index++;
        this.options = $.extend({}, defaults, window.jQueryScrollbarOptions || {});
        this.scrollTo = null;
        this.scrollx = {};
        this.scrolly = {};

        container.data(browser.data.name, this);
        browser.scrolls.add(this);
    };

    BaseScrollbar.prototype = {

        destroy: function () {

            if (!this.wrapper) {
                return;
            }

            this.container.removeData(browser.data.name);
            browser.scrolls.remove(this);

            // init variables
            var scrollLeft = this.container.scrollLeft();
            var scrollTop = this.container.scrollTop();

            this.container.insertBefore(this.wrapper).css({
                "height": "",
                "margin": "",
                "max-height": ""
            })
                .removeClass('scroll-content scroll-scrollx_visible scroll-scrolly_visible')
                .off(this.namespace)
                .scrollLeft(scrollLeft)
                .scrollTop(scrollTop);

            this.scrollx.scroll.removeClass('scroll-scrollx_visible').find('div').andSelf().off(this.namespace);
            this.scrolly.scroll.removeClass('scroll-scrolly_visible').find('div').andSelf().off(this.namespace);

            this.wrapper.remove();

            $(document).add('body').off(this.namespace);

            if (typeof this.options.onDestroy === 'function'){
                this.options.onDestroy.apply(this, [this.container]);
            }
        },
        init: function (options) {

            // init variables
            var S = this,
                c = this.container,
                cw = this.containerWrapper || c,
                namespace = this.namespace,
                o = $.extend(this.options, options || {}),
                s = {x: this.scrollx, y: this.scrolly},
                w = this.wrapper;

            var initScroll = {
                "scrollLeft": c.scrollLeft(),
                "scrollTop": c.scrollTop()
            };

            // do not init if in ignorable browser
            if ((window.theme && theme.is_device_mobile && o.ignoreMobile)
                || (browser.overlay && o.ignoreOverlay)
                || (browser.macosx && !browser.webkit) // still required to ignore nonWebKit browsers on Mac
                ) {
                return false;
            }

            // init scroll container
            if (!w) {
                this.wrapper = w = $('<div>').addClass('scroll-wrapper').addClass(c.attr('class'))
                    .css('position', c.css('position') == 'absolute' ? 'absolute' : 'relative')
                    .insertBefore(c).append(c);

                if (c.is('textarea')) {
                    this.containerWrapper = cw = $('<div>').insertBefore(c).append(c);
                    w.addClass('scroll-textarea');
                }

                cw.addClass('scroll-content').css({
                    "height": "auto",
                    "margin-bottom": browser.scroll.height * -1 + 'px',
                    "margin-right": browser.scroll.width * -1 + 'px',
                    "max-height": ""
                });

                c.on('scroll' + namespace, function (event) {
                    if (typeof o.onScroll === 'function') {
                        o.onScroll.call(S, {
                            "maxScroll": s.y.maxScrollOffset,
                            "scroll": c.scrollTop(),
                            "size": s.y.size,
                            "visible": s.y.visible
                        }, {
                            "maxScroll": s.x.maxScrollOffset,
                            "scroll": c.scrollLeft(),
                            "size": s.x.size,
                            "visible": s.x.visible
                        });
                    }
                    s.x.isVisible && s.x.scroll.bar.css('left', c.scrollLeft() * s.x.kx + 'px');
                    s.y.isVisible && s.y.scroll.bar.css('top', c.scrollTop() * s.y.kx + 'px');
                });

                /* prevent native scrollbars to be visible on #anchor click */
                w.on('scroll' + namespace, function () {
                    w.scrollTop(0).scrollLeft(0);
                });

                if (o.disableBodyScroll) {
                    var handleMouseScroll = function (event) {
                        isVerticalScroll(event) ?
                            s.y.isVisible && s.y.mousewheel(event) :
                            s.x.isVisible && s.x.mousewheel(event);
                    };
                    w.on('MozMousePixelScroll' + namespace, handleMouseScroll);
                    w.on('mousewheel' + namespace, handleMouseScroll);

                    if (window.theme && theme.is_device_mobile) {
                        w.on('touchstart' + namespace, function (event) {
                            var touch = event.originalEvent.touches && event.originalEvent.touches[0] || event;
                            var originalTouch = {
                                "pageX": touch.pageX,
                                "pageY": touch.pageY
                            };
                            var originalScroll = {
                                "left": c.scrollLeft(),
                                "top": c.scrollTop()
                            };
                            $(document).on('touchmove' + namespace, function (event) {
                                var touch = event.originalEvent.targetTouches && event.originalEvent.targetTouches[0] || event;
                                c.scrollLeft(originalScroll.left + originalTouch.pageX - touch.pageX);
                                c.scrollTop(originalScroll.top + originalTouch.pageY - touch.pageY);
                                event.preventDefault();
                            });
                            $(document).on('touchend' + namespace, function () {
                                $(document).off(namespace);
                            });
                        });
                    }
                }
                if (typeof o.onInit === 'function'){
                    o.onInit.apply(this, [c]);
                }
            } else {
                cw.css({
                    "height": "auto",
                    "margin-bottom": browser.scroll.height * -1 + 'px',
                    "margin-right": browser.scroll.width * -1 + 'px',
                    "max-height": ""
                });
            }

            // init scrollbars & recalculate sizes
            $.each(s, function (d, scrollx) {

                var scrollCallback = null;
                var scrollForward = 1;
                var scrollOffset = (d === 'x') ? 'scrollLeft' : 'scrollTop';
                var scrollStep = o.scrollStep;
                var scrollTo = function () {
                    var currentOffset = c[scrollOffset]();
                    c[scrollOffset](currentOffset + scrollStep);
                    if (scrollForward == 1 && (currentOffset + scrollStep) >= scrollToValue)
                        currentOffset = c[scrollOffset]();
                    if (scrollForward == -1 && (currentOffset + scrollStep) <= scrollToValue)
                        currentOffset = c[scrollOffset]();
                    if (c[scrollOffset]() == currentOffset && scrollCallback) {
                        scrollCallback();
                    }
                }
                var scrollToValue = 0;

                if (!scrollx.scroll) {

                    scrollx.scroll = S._getScroll(o['scroll' + d]).addClass('scroll-' + d);

                    if(o.showArrows){
                        scrollx.scroll.addClass('scroll-element_arrows_visible');
                    }

                    scrollx.mousewheel = function (event) {

                        if (!scrollx.isVisible || (d === 'x' && isVerticalScroll(event))) {
                            return true;
                        }
                        if (d === 'y' && !isVerticalScroll(event)) {
                            s.x.mousewheel(event);
                            return true;
                        }

                        var delta = event.originalEvent.wheelDelta * -1 || event.originalEvent.detail;
                        var maxScrollValue = scrollx.size - scrollx.visible - scrollx.offset;

                        if ((delta > 0 && scrollToValue < maxScrollValue) || (delta < 0 && scrollToValue > 0)) {
                            scrollToValue = scrollToValue + delta;
                            if (scrollToValue < 0)
                                scrollToValue = 0;
                            if (scrollToValue > maxScrollValue)
                                scrollToValue = maxScrollValue;

                            S.scrollTo = S.scrollTo || {};
                            S.scrollTo[scrollOffset] = scrollToValue;
                            setTimeout(function () {
                                if (S.scrollTo) {
                                    c.stop().animate(S.scrollTo, 240, 'linear', function () {
                                        scrollToValue = c[scrollOffset]();
                                    });
                                    S.scrollTo = null;
                                }
                            }, 1);
                        }

                        event.preventDefault();
                        return false;
                    };

                    scrollx.scroll
                        .on('MozMousePixelScroll' + namespace, scrollx.mousewheel)
                        .on('mousewheel' + namespace, scrollx.mousewheel)
                        .on('mouseenter' + namespace, function () {
                            scrollToValue = c[scrollOffset]();
                        });

                    // handle arrows & scroll inner mousedown event
                    scrollx.scroll.find('.scroll-arrow, .scroll-element_track')
                        .on('mousedown' + namespace, function (event) {

                            if (event.which != 1) // lmb
                                return true;

                            scrollForward = 1;

                            var data = {
                                "eventOffset": event[(d === 'x') ? 'pageX' : 'pageY'],
                                "maxScrollValue": scrollx.size - scrollx.visible - scrollx.offset,
                                "scrollbarOffset": scrollx.scroll.bar.offset()[(d === 'x') ? 'left' : 'top'],
                                "scrollbarSize": scrollx.scroll.bar[(d === 'x') ? 'outerWidth' : 'outerHeight']()
                            };
                            var timeout = 0, timer = 0;

                            if ($(this).hasClass('scroll-arrow')) {
                                scrollForward = $(this).hasClass("scroll-arrow_more") ? 1 : -1;
                                scrollStep = o.scrollStep * scrollForward;
                                scrollToValue = scrollForward > 0 ? data.maxScrollValue : 0;
                            } else {
                                scrollForward = (data.eventOffset > (data.scrollbarOffset + data.scrollbarSize) ? 1
                                    : (data.eventOffset < data.scrollbarOffset ? -1 : 0));
                                scrollStep = Math.round(scrollx.visible * 0.75) * scrollForward;
                                scrollToValue = (data.eventOffset - data.scrollbarOffset -
                                    (o.stepScrolling ? (scrollForward == 1 ? data.scrollbarSize : 0)
                                        : Math.round(data.scrollbarSize / 2)));
                                scrollToValue = c[scrollOffset]() + (scrollToValue / scrollx.kx);
                            }

                            S.scrollTo = S.scrollTo || {};
                            S.scrollTo[scrollOffset] = o.stepScrolling ? c[scrollOffset]() + scrollStep : scrollToValue;

                            if (o.stepScrolling) {
                                scrollCallback = function () {
                                    scrollToValue = c[scrollOffset]();
                                    clearInterval(timer);
                                    clearTimeout(timeout);
                                    timeout = 0;
                                    timer = 0;
                                };
                                timeout = setTimeout(function () {
                                    timer = setInterval(scrollTo, 40);
                                }, o.duration + 100);
                            }

                            setTimeout(function () {
                                if (S.scrollTo) {
                                    c.animate(S.scrollTo, o.duration);
                                    S.scrollTo = null;
                                }
                            }, 1);

                            return S._handleMouseDown(scrollCallback, event);
                        });

                    // handle scrollbar drag'n'drop
                    scrollx.scroll.bar.on('mousedown' + namespace, function (event) {

                        if (event.which != 1) // lmb
                            return true;

                        var eventPosition = event[(d === 'x') ? 'pageX' : 'pageY'];
                        var initOffset = c[scrollOffset]();

                        scrollx.scroll.addClass('scroll-draggable');

                        $(document).on('mousemove' + namespace, function (event) {
                            var diff = parseInt((event[(d === 'x') ? 'pageX' : 'pageY'] - eventPosition) / scrollx.kx, 10);
                            c[scrollOffset](initOffset + diff);
                        });

                        return S._handleMouseDown(function () {
                            scrollx.scroll.removeClass('scroll-draggable');
                            scrollToValue = c[scrollOffset]();
                        }, event);
                    });
                }
            });

            // remove classes & reset applied styles
            $.each(s, function (d, scrollx) {
                var scrollClass = 'scroll-scroll' + d + '_visible';
                var scrolly = (d == "x") ? s.y : s.x;

                scrollx.scroll.removeClass(scrollClass);
                scrolly.scroll.removeClass(scrollClass);
                cw.removeClass(scrollClass);
            });

            // calculate init sizes
            $.each(s, function (d, scrollx) {
                $.extend(scrollx, (d == "x") ? {
                    "offset": parseInt(c.css('left'), 10) || 0,
                    "size": c.prop('scrollWidth'),
                    "visible": w.width()
                } : {
                    "offset": parseInt(c.css('top'), 10) || 0,
                    "size": c.prop('scrollHeight'),
                    "visible": w.height()
                });
            });

            // update scrollbar visibility/dimensions
            this._updateScroll('x', this.scrollx);
            this._updateScroll('y', this.scrolly);

            if (typeof o.onUpdate === 'function'){
                o.onUpdate.apply(this, [c]);
            }

            // calculate scroll size
            $.each(s, function (d, scrollx) {

                var cssOffset = (d === 'x') ? 'left' : 'top';
                var cssFullSize = (d === 'x') ? 'outerWidth' : 'outerHeight';
                var cssSize = (d === 'x') ? 'width' : 'height';
                var offset = parseInt(c.css(cssOffset), 10) || 0;

                var AreaSize = scrollx.size;
                var AreaVisible = scrollx.visible + offset;

                var scrollSize = scrollx.scroll.size[cssFullSize]() + (parseInt(scrollx.scroll.size.css(cssOffset), 10) || 0);

                if (o.autoScrollSize) {
                    scrollx.scrollbarSize = parseInt(scrollSize * AreaVisible / AreaSize, 10);
                    scrollx.scroll.bar.css(cssSize, scrollx.scrollbarSize + 'px');
                }

                scrollx.scrollbarSize = scrollx.scroll.bar[cssFullSize]();
                scrollx.kx = ((scrollSize - scrollx.scrollbarSize) / (AreaSize - AreaVisible)) || 1;
                scrollx.maxScrollOffset = AreaSize - AreaVisible;
            });

            c.scrollLeft(initScroll.scrollLeft).scrollTop(initScroll.scrollTop).trigger('scroll');
        },

        /**
         * Get scrollx/scrolly object
         *
         * @param {Mixed} scroll
         * @returns {jQuery} scroll object
         */
        _getScroll: function (scroll) {
            var types = {
                advanced: [
                    '<div class="scroll-element">',
                    '<div class="scroll-element_corner"></div>',
                    '<div class="scroll-arrow scroll-arrow_less"></div>',
                    '<div class="scroll-arrow scroll-arrow_more"></div>',
                    '<div class="scroll-element_outer">',
                    '<div class="scroll-element_size"></div>', // required! used for scrollbar size calculation !
                    '<div class="scroll-element_inner-wrapper">',
                    '<div class="scroll-element_inner scroll-element_track">', // used for handling scrollbar click
                    '<div class="scroll-element_inner-bottom"></div>',
                    '</div>',
                    '</div>',
                    '<div class="scroll-bar">', // required
                    '<div class="scroll-bar_body">',
                    '<div class="scroll-bar_body-inner"></div>',
                    '</div>',
                    '<div class="scroll-bar_bottom"></div>',
                    '<div class="scroll-bar_center"></div>',
                    '</div>',
                    '</div>',
                    '</div>'
                ].join(''),
                simple: [
                    '<div class="scroll-element">',
                    '<div class="scroll-element_outer">',
                    '<div class="scroll-element_size"></div>', // required! used for scrollbar size calculation !
                    '<div class="scroll-element_track"></div>', // used for handling scrollbar click
                    '<div class="scroll-bar"></div>', // required
                    '</div>',
                    '</div>'
                ].join('')
            };
            if (types[scroll]) {
                scroll = types[scroll];
            }
            if (!scroll) {
                scroll = types['simple'];
            }
            if (typeof (scroll) == 'string') {
                scroll = $(scroll).appendTo(this.wrapper);
            } else {
                scroll = $(scroll);
            }
            $.extend(scroll, {
                bar: scroll.find('.scroll-bar'),
                size: scroll.find('.scroll-element_size'),
                track: scroll.find('.scroll-element_track')
            });
            return scroll;
        },

        _handleMouseDown: function(callback, event) {

            var namespace = this.namespace;

            $(document).on('blur' + namespace, function () {
                $(document).add('body').off(namespace);
                callback && callback();
            });
            $(document).on('dragstart' + namespace, function (event) {
                event.preventDefault();
                return false;
            });
            $(document).on('mouseup' + namespace, function () {
                $(document).add('body').off(namespace);
                callback && callback();
            });
            $('body').on('selectstart' + namespace, function (event) {
                event.preventDefault();
                return false;
            });

            event && event.preventDefault();
            return false;
        },

        _updateScroll: function (d, scrollx) {

            var container = this.container,
                containerWrapper = this.containerWrapper || container,
                scrollClass = 'scroll-scroll' + d + '_visible',
                scrolly = (d === 'x') ? this.scrolly : this.scrollx,
                offset = parseInt(this.container.css((d === 'x') ? 'left' : 'top'), 10) || 0,
                wrapper = this.wrapper;

            var AreaSize = scrollx.size;
            var AreaVisible = scrollx.visible + offset;

            scrollx.isVisible = (AreaSize - AreaVisible) > 1; // bug in IE9/11 with 1px diff
            if (scrollx.isVisible) {
                scrollx.scroll.addClass(scrollClass);
                scrolly.scroll.addClass(scrollClass);
                containerWrapper.addClass(scrollClass);
            } else {
                scrollx.scroll.removeClass(scrollClass);
                scrolly.scroll.removeClass(scrollClass);
                containerWrapper.removeClass(scrollClass);
            }

            if (d === 'y') {
                if(container.is('textarea') || AreaSize < AreaVisible){
                    containerWrapper.css({
                        "height": (AreaVisible + browser.scroll.height) + 'px',
                        "max-height": "none"
                    });
                } else {
                    containerWrapper.css({
                        //"height": "auto", // do not reset height value: issue with height:100%!
                        "max-height": (AreaVisible + browser.scroll.height) + 'px'
                    });
                }
            }

            if (scrollx.size != container.prop('scrollWidth')
                || scrolly.size != container.prop('scrollHeight')
                || scrollx.visible != wrapper.width()
                || scrolly.visible != wrapper.height()
                || scrollx.offset != (parseInt(container.css('left'), 10) || 0)
                || scrolly.offset != (parseInt(container.css('top'), 10) || 0)
                ) {
                $.extend(this.scrollx, {
                    "offset": parseInt(container.css('left'), 10) || 0,
                    "size": container.prop('scrollWidth'),
                    "visible": wrapper.width()
                });
                $.extend(this.scrolly, {
                    "offset": parseInt(container.css('top'), 10) || 0,
                    "size": this.container.prop('scrollHeight'),
                    "visible": wrapper.height()
                });
                this._updateScroll(d === 'x' ? 'y' : 'x', scrolly);
            }
        }
    };

    var CustomScrollbar = BaseScrollbar;

    /*
     * Extend jQuery as plugin
     *
     * @param {Mixed} command to execute
     * @param {Mixed} arguments as Array
     * @return {jQuery}
     */
    $.fn.scrollbar = function (command, args) {
        if (typeof command !== 'string') {
            args = command;
            command = 'init';
        }
        if (typeof args === 'undefined') {
            args = [];
        }
        if (!Array.isArray(args)) {
            args = [args];
        }
        this.not('body, .scroll-wrapper').each(function () {
            var element = $(this),
                instance = element.data(browser.data.name);
            if (instance || command === 'init') {
                if (!instance) {
                    instance = new CustomScrollbar(element);
                }
                if (instance[command]) {
                    instance[command].apply(instance, args);
                }
            }
        });
        return this;
    };

    /**
     * Connect default options to global object
     */
    $.fn.scrollbar.options = defaults;


    /**
     * Check if scroll content/container size is changed
     */

    var updateScrollbars = (function () {
        var timer = 0,
            timerCounter = 0;

        return function (force) {
            var i, container, options, scroll, wrapper, scrollx, scrolly;
            for (i = 0; i < browser.scrolls.length; i++) {
                scroll = browser.scrolls[i];
                container = scroll.container;
                options = scroll.options;
                wrapper = scroll.wrapper;
                scrollx = scroll.scrollx;
                scrolly = scroll.scrolly;
                if (force || (options.autoUpdate && wrapper && wrapper.is(':visible') &&
                    (container.prop('scrollWidth') != scrollx.size || container.prop('scrollHeight') != scrolly.size || wrapper.width() != scrollx.visible || wrapper.height() != scrolly.visible))) {
                    scroll.init();

                    if (options.debug) {
                        window.console && console.log({
                            scrollHeight: container.prop('scrollHeight') + ':' + scroll.scrolly.size,
                            scrollWidth: container.prop('scrollWidth') + ':' + scroll.scrollx.size,
                            visibleHeight: wrapper.height() + ':' + scroll.scrolly.visible,
                            visibleWidth: wrapper.width() + ':' + scroll.scrollx.visible
                        }, true);
                        timerCounter++;
                    }
                }
            }
            if (debug && timerCounter > 10) {
                window.console && console.log('Scroll updates exceed 10');
                updateScrollbars = function () {};
            } else {
                clearTimeout(timer);
                timer = setTimeout(updateScrollbars, 300);
            }
        };
    })();

    /* ADDITIONAL FUNCTIONS */
    /**
     * Get native browser scrollbar size (height/width)
     *
     * @param {Boolean} actual size or CSS size, default - CSS size
     * @returns {Object} with height, width
     */
    function getBrowserScrollSize(actualSize) {

        if (browser.webkit && !actualSize) {
            return {
                "height": 0,
                "width": 0
            };
        }

        if (!browser.data.outer) {
            var css = {
                "border": "none",
                "box-sizing": "content-box",
                "height": "200px",
                "margin": "0",
                "padding": "0",
                "width": "200px"
            };
            browser.data.inner = $("<div>").css($.extend({}, css));
            browser.data.outer = $("<div>").css($.extend({
                "left": "-1000px",
                "overflow": "scroll",
                "position": "absolute",
                "top": "-1000px"
            }, css)).append(browser.data.inner).appendTo("body");
        }

        browser.data.outer.scrollLeft(1000).scrollTop(1000);

        return {
            "height": Math.ceil((browser.data.outer.offset().top - browser.data.inner.offset().top) || 0),
            "width": Math.ceil((browser.data.outer.offset().left - browser.data.inner.offset().left) || 0)
        };
    }

    /**
     * Check if native browser scrollbars overlay content
     *
     * @returns {Boolean}
     */
    function isScrollOverlaysContent() {
        var scrollSize = getBrowserScrollSize(true);
        return !(scrollSize.height || scrollSize.width);
    }

    function isVerticalScroll(event) {
        var e = event.originalEvent;
        if (e.axis && e.axis === e.HORIZONTAL_AXIS)
            return false;
        if (e.wheelDeltaX)
            return false;
        return true;
    }


    /**
     * Extend AngularJS as UI directive
     * and expose a provider for override default config
     *
     */
    if (window.angular) {
        (function (angular) {
            angular.module('jQueryScrollbar', [])
                .provider('jQueryScrollbar', function () {
                    var defaultOptions = defaults;
                    return {
                        setOptions: function (options) {
                            angular.extend(defaultOptions, options);
                        },
                        $get: function () {
                            return {
                                options: angular.copy(defaultOptions)
                            };
                        }
                    };
                })
                .directive('jqueryScrollbar', ['jQueryScrollbar', '$parse', function (jQueryScrollbar, $parse) {
                    return {
                        "restrict": "AC",
                        "link": function (scope, element, attrs) {
                            var model = $parse(attrs.jqueryScrollbar),
                                options = model(scope);
                            element.scrollbar(options || jQueryScrollbar.options)
                                .on('$destroy', function () {
                                    element.scrollbar('destroy');
                                });
                        }
                    };
                }]);
        })(window.angular);
    }
}));