137 lines
3.5 KiB
JavaScript
137 lines
3.5 KiB
JavaScript
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/**
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* jQuery.ScrollTo - Easy element scrolling using jQuery. Copyright (c)
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* 2007-2009 Ariel Flesler - aflesler(at)gmail(dot)com |
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* http://flesler.blogspot.com Dual licensed under MIT and GPL. Date: 5/25/2009
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*
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* @author Ariel Flesler
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* @version 1.4.2
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*
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* http://flesler.blogspot.com/2007/10/jqueryscrollto.html
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*/
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;
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(function(d) {
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var k = d.scrollTo = function(a, i, e) {
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d(window).scrollTo(a, i, e)
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};
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k.defaults = {
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axis : 'xy',
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duration : parseFloat(d.fn.jquery) >= 1.3 ? 0 : 1
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};
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k.window = function(a) {
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return d(window)._scrollable()
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};
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d.fn._scrollable = function() {
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return this.map(function() {
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var a = this, i = !a.nodeName
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|| d.inArray(a.nodeName.toLowerCase(), [ 'iframe',
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'#document', 'html', 'body' ]) != -1;
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if (!i)
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return a;
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var e = (a.contentWindow || a).document || a.ownerDocument || a;
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return d.browser.safari || e.compatMode == 'BackCompat' ? e.body
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: e.documentElement
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})
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};
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d.fn.scrollTo = function(n, j, b) {
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if (typeof j == 'object') {
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b = j;
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j = 0
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}
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if (typeof b == 'function')
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b = {
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onAfter : b
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};
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if (n == 'max')
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n = 9e9;
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b = d.extend({}, k.defaults, b);
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j = j || b.speed || b.duration;
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b.queue = b.queue && b.axis.length > 1;
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if (b.queue)
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j /= 2;
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b.offset = p(b.offset);
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b.over = p(b.over);
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return this
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._scrollable()
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.each(
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function() {
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var q = this, r = d(q), f = n, s, g = {}, u = r
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.is('html,body');
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switch (typeof f) {
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case 'number':
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case 'string':
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if (/^([+-]=)?\d+(\.\d+)?(px|%)?$/.test(f)) {
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f = p(f);
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break
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}
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f = d(f, this);
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case 'object':
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if (f.is || f.style)
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s = (f = d(f)).offset()
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}
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d
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.each(
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b.axis.split(''),
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function(a, i) {
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var e = i == 'x' ? 'Left'
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: 'Top', h = e
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.toLowerCase(), c = 'scroll'
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+ e, l = q[c], m = k
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.max(q, i);
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if (s) {
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g[c] = s[h]
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+ (u ? 0
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: l
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- r
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.offset()[h]);
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if (b.margin) {
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g[c] -= parseInt(f
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.css('margin'
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+ e)) || 0;
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g[c] -= parseInt(f
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.css('border'
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+ e
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+ 'Width')) || 0
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}
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g[c] += b.offset[h] || 0;
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if (b.over[h])
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g[c] += f[i == 'x' ? 'width'
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: 'height']()
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* b.over[h]
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} else {
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var o = f[h];
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g[c] = o.slice
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&& o.slice(-1) == '%' ? parseFloat(o)
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/ 100 * m
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: o
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}
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if (/^\d+$/.test(g[c]))
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g[c] = g[c] <= 0 ? 0 : Math
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.min(g[c], m);
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if (!a && b.queue) {
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if (l != g[c])
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t(b.onAfterFirst);
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delete g[c]
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}
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});
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t(b.onAfter);
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function t(a) {
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r.animate(g, j, b.easing, a && function() {
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a.call(this, n, b)
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})
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}
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}).end()
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};
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k.max = function(a, i) {
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var e = i == 'x' ? 'Width' : 'Height', h = 'scroll' + e;
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if (!d(a).is('html,body'))
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return a[h] - d(a)[e.toLowerCase()]();
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var c = 'client' + e, l = a.ownerDocument.documentElement, m = a.ownerDocument.body;
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return Math.max(l[h], m[h]) - Math.min(l[c], m[c])
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};
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function p(a) {
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return typeof a == 'object' ? a : {
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top : a,
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left : a
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}
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}
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})($jqPm);
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