http://www.reformanda.co.kr/layouts/neat/js/supersubs.js?20191130132834

1
2/*
3 * Supersubs v0.3b - jQuery plugin
4 * Copyright (c) 2013 Joel Birch
5 *
6 * Dual licensed under the MIT and GPL licenses:
7 * 	http://www.opensource.org/licenses/mit-license.php
8 * 	http://www.gnu.org/licenses/gpl.html
9 *
10 *
11 * This plugin automatically adjusts submenu widths of suckerfish-style menus to that of
12 * their longest list item children. If you use this, please expect bugs and report them
13 * to the jQuery Google Group with the word 'Superfish' in the subject line.
14 *
15 */
16
17;(function($){ // $ will refer to jQuery within this closure
18
19	$.fn.supersubs = function(options){
20		var opts = $.extend({}, $.fn.supersubs.defaults, options);
21		// return original object to support chaining
22		return this.each(function() {
23			// cache selections
24			var $$ = $(this);
25			// support metadata
26			var o = $.meta ? $.extend({}, opts, $$.data()) : opts;
27			// cache all ul elements and show them in preparation for measurements
28			$ULs = $$.find('ul').show();
29			// get the font size of menu.
30			// .css('fontSize') returns various results cross-browser, so measure an em dash instead
31			var fontsize = $('<li id="menu-fontsize">&#8212;</li>').css({
32				'padding' : 0,
33				'position' : 'absolute',
34				'top' : '-999em',
35				'width' : 'auto'
36			}).appendTo($$)[0].clientWidth; //clientWidth is faster than .width()
37			// remove em dash
38			$('#menu-fontsize').remove();
39			// loop through each ul in menu
40			$ULs.each(function(i) {	
41				// cache this ul
42				var $ul = $(this);
43				// get all (li) children of this ul
44				var $LIs = $ul.children();
45				// get all anchor grand-children
46				var $As = $LIs.children('a');
47				// force content to one line and save current float property
48				var liFloat = $LIs.css('white-space','nowrap').css('float');
49				// remove width restrictions and floats so elements remain vertically stacked
50				$ul.add($LIs).add($As).css({
51					'float' : 'none',
52					'width'	: 'auto'
53				});
54				// this ul will now be shrink-wrapped to longest li due to position:absolute
55				// so save its width as ems.
56				var emWidth = $ul[0].clientWidth / fontsize;
57				// add more width to ensure lines don't turn over at certain sizes in various browsers
58				emWidth += o.extraWidth;
59				// restrict to at least minWidth and at most maxWidth
60				if (emWidth > o.maxWidth)		{ emWidth = o.maxWidth; }
61				else if (emWidth < o.minWidth)	{ emWidth = o.minWidth; }
62				emWidth += 'em';
63				// set ul to width in ems
64				$ul.css('width',emWidth);
65				// restore li floats to avoid IE bugs
66				// set li width to full width of this ul
67				// revert white-space to normal
68				$LIs.css({
69					'float' : liFloat,
70					'width' : '100%',
71					'white-space' : 'normal'
72				})
73				// update offset position of descendant ul to reflect new width of parent.
74				// set it to 100% in case it isn't already set to this in the CSS
75				.each(function(){
76					var $childUl = $(this).children('ul');
77					var offsetDirection = $childUl.css('left') !== undefined ? 'left' : 'right';
78					$childUl.css(offsetDirection,'100%');
79				});
80			}).hide();
81			
82		});
83	};
84	// expose defaults
85	$.fn.supersubs.defaults = {
86		minWidth		: 9,		// requires em unit.
87		maxWidth		: 25,		// requires em unit.
88		extraWidth		: 0			// extra width can ensure lines don't sometimes turn over due to slight browser differences in how they round-off values
89	};
90	
91})(jQuery); // plugin code ends