jquery.scrollTo.min.js

/**
 * Copyright (c) 2007-2014 Ariel Flesler - aflesler<a>gmail<d>com | http://flesler.blogspot.com
 * Licensed under MIT
 * @author Ariel Flesler
 * @version 1.4.14
 */
;
(function(k) {
    'use strict';
    k(['jquery'], function($) {
        var j = $.scrollTo = function(a, b, c) {
            return $(window).scrollTo(a, b, c)
        };
        j.defaults = {
            axis: 'xy',
            duration: 0,
            limit: !0
        };
        j.window = function(a) {
            return $(window)._scrollable()
        };
        $.fn._scrollable = function() {
            return this.map(function() {
                var a = this,
                    isWin = !a.nodeName || $.inArray(a.nodeName.toLowerCase(), ['iframe', '#document', 'html', 'body']) != -1;
                if (!isWin) return a;
                var b = (a.contentWindow || a).document || a.ownerDocument || a;
                return /webkit/i.test(navigator.userAgent) || b.compatMode == 'BackCompat' ? b.body : b.documentElement
            })
        };
        $.fn.scrollTo = function(f, g, h) {
            if (typeof g == 'object') {
                h = g;
                g = 0
            }
            if (typeof h == 'function') h = {
                onAfter: h
            };
            if (f == 'max') f = 9e9;
            h = $.extend({}, j.defaults, h);
            g = g || h.duration;
            h.queue = h.queue && h.axis.length > 1;
            if (h.queue) g /= 2;
            h.offset = both(h.offset);
            h.over = both(h.over);
            return this._scrollable().each(function() {
                if (f == null) return;
                var d = this,
                    $elem = $(d),
                    targ = f,
                    toff, attr = {},
                    win = $elem.is('html,body');
                switch (typeof targ) {
                    case 'number':
                    case 'string':
                        if (/^([+-]=?)?\d+(\.\d+)?(px|%)?$/.test(targ)) {
                            targ = both(targ);
                            break
                        }
                        targ = win ? $(targ) : $(targ, this);
                        if (!targ.length) return;
                    case 'object':
                        if (targ.is || targ.style) toff = (targ = $(targ)).offset()
                }
                var e = $.isFunction(h.offset) && h.offset(d, targ) || h.offset;
                $.each(h.axis.split(''), function(i, a) {
                    var b = a == 'x' ? 'Left' : 'Top',
                        pos = b.toLowerCase(),
                        key = 'scroll' + b,
                        old = d[key],
                        max = j.max(d, a);
                    if (toff) {
                        attr[key] = toff[pos] + (win ? 0 : old - $elem.offset()[pos]);
                        if (h.margin) {
                            attr[key] -= parseInt(targ.css('margin' + b)) || 0;
                            attr[key] -= parseInt(targ.css('border' + b + 'Width')) || 0
                        }
                        attr[key] += e[pos] || 0;
                        if (h.over[pos]) attr[key] += targ[a == 'x' ? 'width' : 'height']() * h.over[pos]
                    } else {
                        var c = targ[pos];
                        attr[key] = c.slice && c.slice(-1) == '%' ? parseFloat(c) / 100 * max : c
                    }
                    if (h.limit && /^\d+$/.test(attr[key])) attr[key] = attr[key] <= 0 ? 0 : Math.min(attr[key], max);
                    if (!i && h.queue) {
                        if (old != attr[key]) animate(h.onAfterFirst);
                        delete attr[key]
                    }
                });
                animate(h.onAfter);

                function animate(a) {
                    $elem.animate(attr, g, h.easing, a && function() {
                        a.call(this, targ, h)
                    })
                }
            }).end()
        };
        j.max = function(a, b) {
            var c = b == 'x' ? 'Width' : 'Height',
                scroll = 'scroll' + c;
            if (!$(a).is('html,body')) return a[scroll] - $(a)[c.toLowerCase()]();
            var d = 'client' + c,
                html = a.ownerDocument.documentElement,
                body = a.ownerDocument.body;
            return Math.max(html[scroll], body[scroll]) - Math.min(html[d], body[d])
        };

        function both(a) {
            return $.isFunction(a) || $.isPlainObject(a) ? a : {
                top: a,
                left: a
            }
        }
        return j
    })
}(typeof define === 'function' && define.amd ? define : function(a, b) {
    if (typeof module !== 'undefined' && module.exports) {
        module.exports = b(require('jquery'))
    } else {
        b(jQuery)
    }
}));