/**
* jQuery Horizontal Navigation 1.0
* https://github.com/sebnitu/horizontalNav
*
* By Sebastian Nitu - Copyright 2012 - All rights reserved
* Author URL: http://sebnitu.com
*/
(function($) {
$.fn.horizontalNav = function(options) {
// Extend our default options with those provided.
var opts = $.extend({}, $.fn.horizontalNav.defaults, options);
return this.each(function () {
// Save our object
var $this = $(this);
// Build element specific options
// This lets me access options with this syntax: o.optionName
var o = $.meta ? $.extend({}, opts, $this.data()) : opts;
// Save the wrapper. The wrapper is the element that
// we figure out what the full width should be
if ($this.is('ul')) {
var ul_wrap = $this.parent();
} else {
var ul_wrap = $this;
}
// Grab elements we'll need and add some default styles
var ul = $this.is('ul') ? $this : ul_wrap.find('> ul'), // The unordered list element
li = ul.find('> li'), // All list items
li_last = li.last(), // Last list item
li_count = li.size(), // The number of navigation elements
li_a = li.find('> a'); // Remove padding from the links
if (o.minimumItems && o.minimumItems > li_count) {
$this.addClass("horizontalNav-notprocessed");
return false;
}
// If set to responsive, re-construct after every browser resize
if ( o.responsive === true ) {
// Only need to do this for IE7 and below
// or if we set tableDisplay to false
if ( (o.tableDisplay != true) || ($.browser.msie && parseInt($.browser.version, 10) <= 7) ) {
resizeTrigger( _construct, o.responsiveDelay );
}
}
if ($('.clearHorizontalNav').length ) {
ul_wrap.css({ 'zoom' : '1' });
} else {
ul_wrap.css({ 'zoom' : '1' }).append('
');
// let's append a clearfixing element to the ul wrapper
$('.clearHorizontalNav').css({
'display' : 'block',
'overflow' : 'hidden',
'visibility' : 'hidden',
'width' : 0,
'height' : 0,
'clear' : 'both'
});
}
// Initiate the plugin
_construct();
// Returns the true inner width of an element
// Essentially it's the inner width without padding.
function trueInnerWidth(element) {
return element.innerWidth() - (
parseInt(element.css('padding-left')) + parseInt(element.css('padding-right'))
);
}
// Call funcion on browser resize
function resizeTrigger(callback, delay) {
// Delay before function is called
delay = delay || 100;
// Call function on resize
var resizeTimer;
$(window).resize(function() {
clearTimeout(resizeTimer);
resizeTimer = setTimeout(function() {
callback();
}, delay);
});
}
// The heavy lifting of this plugin. This is where we
// find and set the appropriate widths for list items
function _construct() {
if ( (o.tableDisplay != true) || ($.browser.msie && parseInt($.browser.version, 10) <= 7) ) {
// IE7 doesn't support the "display: table" method
// so we need to do it the hard way.
// Add some styles
ul.css({ 'float' : 'left' });
li.css({ 'float' : 'left', 'width' : 'auto' });
li_a.css({ 'padding-left' : 0, 'padding-right' : 0 });
// Grabbing widths and doing some math
var ul_width = trueInnerWidth(ul),
ul_width_outer = ul.outerWidth(true),
ul_width_extra = ul_width_outer - ul_width,
full_width = trueInnerWidth(ul_wrap),
extra_width = (full_width - ul_width_extra) - ul_width,
li_padding = Math.floor( extra_width / li_count );
// Cycle through the list items and give them widths
li.each(function(index) {
var li_width = trueInnerWidth( $(this) );
$(this).css({ 'width' : (li_width + li_padding) + 'px' });
});
// Get the leftover pixels after we set every itms width
var li_last_width = trueInnerWidth(li_last) + ( (full_width - ul_width_extra) - trueInnerWidth(ul) );
// I hate to do this but for some reason Firefox (v13.0) and IE are always
// one pixel off when rendering. So this is a quick fix for that.
if ($.browser.mozilla || $.browser.msie) {
li_last_width = li_last_width - 1;
}
// Add the leftovers to the last navigation item
li_last.css({ 'width' : li_last_width + 'px' });
} else {
// Every modern browser supports the "display: table" method
// so this is the best way to do it for them.
ul.css({ 'display' : 'table', 'float' : 'none', 'width' : '100%' });
li.css({ 'display' : 'table-cell', 'float' : 'none' });
}
$this.addClass("horizontalNav-processed").removeClass("horizontalNav-notprocessed");
}
}); // @end of return this.each()
};
$.fn.horizontalNav.defaults = {
responsive : true,
responsiveDelay : 100,
tableDisplay : true,
minimumItems : 0
};
})(jQuery);