jquery melaksanakan kesan menu gelongsor dinamik yang boleh dikembangkan secara mendatar dan menegak

Contoh dalam artikel ini menerangkan pelaksanaan jquery terhadap kesan menu gelongsor dinamik yang boleh dikembangkan secara mendatar dan menegak. Kongsikan dengan semua orang untuk rujukan anda. Butirannya adalah seperti berikut:

Berikut ialah demonstrasi kesan dua menu navigasi lungsur, yang dilaksanakan menggunakan jquery.easing.1.3.js, jquery.naviDropDown.1.0.js dan jquery.hoverIntent.minified.js Versi jquery terbaharu juga boleh diperkenalkan, dalam Dalam halaman demo, terdapat menu lungsur yang meluncur keluar secara mendatar dan mendatar, dan menu navigasi yang meluncur keluar terus dalam susun atur menegak Anda boleh memilih untuk menggunakannya mengikut keperluan anda.

Tangkapan skrin kesan berjalan adalah seperti berikut:

Alamat demo dalam talian adalah seperti berikut:

http://demo.jb51.net/js/2015/jquery-right-down-show-nav-menu-codes/

Kod khusus adalah seperti berikut:

<!DOCTYPE html>
<head>
<title>jQuery纵向横向动态下拉导航菜单</title>
<script type="text/javascript" src="js/jquery-1.6.2.min.js"></script>
<script type="text/javascript" src="js/jquery.easing.1.3.js"></script>
<script type="text/javascript" src="js/jquery.hoverIntent.minified.js"></script>
<script type="text/javascript">
//jquery.naviDropDown.1.0.js
(function($){
 $.fn.naviDropDown = function(options) { 
 var defaults = { 
  dropDownClass: 'dropdown',
  dropDownWidth: 'auto',
  slideDownEasing: 'easeInOutCirc',
  slideUpEasing: 'easeInOutCirc',
  slideDownDuration: 500,
  slideUpDuration: 500,
  orientation: 'horizontal'
 }; 
 var opts = $.extend({}, defaults, options);  
 return this.each(function() { 
  var $this = $(this);
  $this.find('.'+opts.dropDownClass).css('width', opts.dropDownWidth).css('display', 'none');
  var buttonWidth = $this.find('.'+opts.dropDownClass).parent().width() + 'px';
  var buttonHeight = $this.find('.'+opts.dropDownClass).parent().height() + 'px';
  if(opts.orientation == 'horizontal') {
  $this.find('.'+opts.dropDownClass).css('left', '0px').css('top', buttonHeight);
  }
  if(opts.orientation == 'vertical') {
  $this.find('.'+opts.dropDownClass).css('left', buttonWidth).css('top', '0px');
  }
  $this.find('li').hoverIntent(getDropDown, hideDropDown);
 });
 function getDropDown(){
  activeNav = $(this);
  showDropDown();
 }
 function showDropDown(){
  activeNav.find('.'+opts.dropDownClass).slideDown({duration:opts.slideDownDuration, easing:opts.slideDownEasing});
 }
 function hideDropDown(){
  activeNav.find('.'+opts.dropDownClass).slideUp({duration:opts.slideUpDuration, easing:opts.slideUpEasing});//hides the current dropdown
 }
 };
})(jQuery);
</script>
<script type="text/javascript">
$(function(){
 $('#navigation_horiz').naviDropDown({
  dropDownWidth: '300px'
 });
 $('#navigation_vert').naviDropDown({
  dropDownWidth: '300px',
  orientation: 'vertical'
 });
});
</script>
<style type="text/css">
* {margin:0; padding:0; font-family:Arial, Helvetica, sans-serif; font-size:11px; font-weight:bold; line-height:16px}
.container {margin:10px auto; width:950px; height:300px; background:#eee; padding:50px 0 0 0} 
#navigation_horiz {width:820px; clear:both; padding:0 0 0 0; margin:0 auto}
#navigation_horiz ul {height:50px; display:block}
#navigation_horiz ul li {display:block; float:left; width:200px; height:50px; background:#999; margin:0 1px 0 0; position:relative}
#navigation_horiz ul li a.navlink {display:block; width:200px; height:30px; padding: 20px 0 0 0; text-align:center; color:#fff; text-decoration:none}
#navigation_horiz .dropdown {position:absolute; padding:20px; border-bottom-right-radius:10px; border-bottom-left-radius:10px; -moz-border-radius-bottomright:10px; -moz-border-radius-bottomleft:10px}
#navigation_vert {width:820px; clear:both; padding:0 0 0 0; margin:0 auto}
#navigation_vert ul {height:50px; display:block}
#navigation_vert ul li {display:block; width:200px; height:50px; background:#999; margin:0 0 1px 0; position:relative}
#navigation_vert ul li a.navlink {display:block; *display:inline-block; width:200px; height:30px; padding: 20px 0 0 0; text-align:center; color:#fff; text-decoration:none}
#navigation_vert .dropdown {position:absolute; padding:20px; border-bottom-right-radius:10px; border-top-right-radius:10px; -moz-border-radius-bottomright:10px; -moz-border-radius-topright:10px}
#navigation_horiz ul li #dropdown_one {background:#ccc; color:#fff}
#navigation_horiz ul li #dropdown_one a {color:red}
#navigation_horiz ul li #dropdown_two {background:#ccc; color:#fff}
#navigation_horiz ul li #dropdown_two a {color:black}
#navigation_horiz ul li #dropdown_three {background:#ccc; color:#fff} 
#navigation_horiz ul li #dropdown_three a {color:gray}
#navigation_vert ul li #dropdown_four {background:#333; color:#fff}
#navigation_vert ul li #dropdown_four a {color:red}
#navigation_vert ul li #dropdown_five {background:#666; color:#fff}
#navigation_vert ul li #dropdown_five a {color:black}
#navigation_vert ul li #dropdown_six {background:#777; color:#fff} 
#navigation_vert ul li #dropdown_six a {color:orange}
</style>
</head>
<body>
 <div class="container">
  <div id="navigation_horiz">
  <ul>
   <li>
    <a href="" class="navlink">List Item</a>
   <div class="dropdown" id="dropdown_one">  
    <p><a href="#">This is a Link</a></p>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin blandit sodales justo, id fringilla eros dapibus vitae. Morbi molestie enim diam, a vulputate neque. Morbi sit amet nunc id quam mollis aliquet. Donec sed massa justo, ut congue enim. Praesent lobortis viverra dolor commodo euismod. </p>
   </div><!-- .dropdown_menu --> 
   </li>
   <li>
    <a href="" class="navlink">List Item</a>
   <div class="dropdown" id="dropdown_two">  
    <p><a href="#">This is a Link</a></p>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin blandit sodales justo, id fringilla eros dapibus vitae. Morbi molestie enim diam, a vulputate neque. Morbi sit amet nunc id quam mollis aliquet. Donec sed massa justo, ut congue enim. Praesent lobortis viverra dolor commodo euismod. </p>
   </div><!-- .dropdown_menu --> 
   </li>
   <li><a href="" class="navlink">List Item</a></li>
   <li>
    <a href="" class="navlink">List Item</a>
   <div class="dropdown" id="dropdown_three">  
    <p><a href="#">This is a Link</a></p>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin blandit sodales justo, id fringilla eros dapibus vitae. Morbi molestie enim diam, a vulputate neque. Morbi sit amet nunc id quam mollis aliquet. Donec sed massa justo, ut congue enim. Praesent lobortis viverra dolor commodo euismod. </p>
   </div><!-- .dropdown_menu -->  
   </li>
  </ul>
  </div><!-- #navigation_horiz -->
 </div><!-- .container -->
 <div class="container">
  <div id="navigation_vert">
  <ul>
   <li>
    <a href="" class="navlink">List Item</a>
   <div class="dropdown" id="dropdown_four">  
    <p><a href="#">This is a Link</a></p>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin blandit sodales justo, id fringilla eros dapibus vitae. Morbi molestie enim diam, a vulputate neque. Morbi sit amet nunc id quam mollis aliquet. Donec sed massa justo, ut congue enim. Praesent lobortis viverra dolor commodo euismod. </p>
   </div><!-- .dropdown_menu --> 
   </li>
   <li>
    <a href="" class="navlink">List Item</a>
   <div class="dropdown" id="dropdown_five">  
    <p><a href="#">This is a Link</a></p>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin blandit sodales justo, id fringilla eros dapibus vitae. Morbi molestie enim diam, a vulputate neque. Morbi sit amet nunc id quam mollis aliquet. Donec sed massa justo, ut congue enim. Praesent lobortis viverra dolor commodo euismod. </p>
   </div><!-- .dropdown_menu --> 
   </li>
   <li><a href="" class="navlink">List Item</a></li>
   <li>
    <a href="" class="navlink">List Item</a>
   <div class="dropdown" id="dropdown_six">  
    <p><a href="#">This is a Link</a></p>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin blandit sodales justo, id fringilla eros dapibus vitae. Morbi molestie enim diam, a vulputate neque. Morbi sit amet nunc id quam mollis aliquet. Donec sed massa justo, ut congue enim. Praesent lobortis viverra dolor commodo euismod. </p>
   </div><!-- .dropdown_menu -->  
   </li>
  </ul>
  </div><!-- #navigation_vert -->
 </div><!-- .container -->
</body>
</html>

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