header.js
936 Bytes
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
// header
var $header = $('.header'),
headerHeight,
headerNavMinWidth = 0;
// header affix
$(window).on('scroll', function() {
if ($('.header').length) {
if (window.pageYOffset > headerHeight) {
$header.addClass('fixed');
} else {
$header.removeClass('fixed');
}
};
});
// header height
function headerHeightCal() {
if ($('.header').length) {
headerHeight = $header.height();
};
}
// header nav positioning
if ($('.header-nav-scroll').length) {
$('.header-nav-scroll .nav > li').each(function(index) {
var $this = $(this);
if (index < 3) {
headerNavMinWidth += $this.width();
} else {
return false;
}
});
};
function headerNavPos() {
var $headerNav = $('.header-nav-scroll');
$headerNav.removeClass('pull-down');
if ($headerNav.width() < headerNavMinWidth) {
$headerNav.addClass('pull-down');
} else {
$headerNav.removeClass('pull-down');
}
}