JQuery.HoverDir库实现侧边栏二级菜单

本文主要是介绍JQuery.HoverDir库实现侧边栏二级菜单，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

Jquery.hoverDir响应鼠标移动方向的悬停效果插件

HTML代码

<div id="sidebar"><div class="mainNavs"><div class="menubox"><div class="menu_main"><h2>技术<span></span></h2><a href="#">Java</a><a href="#">PHP</a><a href="#">C</a><a href="#">C++</a><a href="#">.net</a><a href="#">Android</a><a href="#">Ios</a><a href="#">前端工程师</a><a href="#">架构师</a><a href="#">项目经理</a><a href="#">技术经理</a></div><div class="menu_sub dn"><dl class="reset"><dt><a href="#">前端开发</a></dt><dd><a href="#">Java</a><a href="#">C++</a><a href="#">PHP</a><a href="#">C</a><a href="#">C#</a><a href="#">.NET</a><a href="#">Hadoop</a><a href="#">VB</a><a href="#">Delphi</a><a href="#">Python</a><a href="#">Perl</a></dd></dl><dl class="reset"><dt><a href="#">移动开发</a></dt><dd><a href="#">HTML5</a><a href="#">Android</a><a href="#">IOS</a><a href="#">WP</a></dd></dl><dl class="reset"><dt><a href="#">前端开发</a></dt><dd><a href="#">Java</a><a href="#">C++</a><a href="#">PHP</a><a href="#">C</a><a href="#">C#</a><a href="#">.NET</a><a href="#">Hadoop</a><a href="#">VB</a><a href="#">Delphi</a><a href="#">Python</a><a href="#">Perl</a></dd></dl><dl class="reset"><dt><a href="#">移动开发</a></dt><dd><a href="#">HTML5</a><a href="#">Android</a><a href="#">IOS</a><a href="#">WP</a></dd></dl><dl class="reset"><dt><a href="#">前端开发</a></dt><dd><a href="#">Java</a><a href="#">C++</a><a href="#">PHP</a><a href="#">C</a><a href="#">C#</a><a href="#">.NET</a><a href="#">Hadoop</a><a href="#">VB</a><a href="#">Delphi</a><a href="#">Python</a><a href="#">Perl</a></dd></dl><dl class="reset"><dt><a href="#">移动开发</a></dt><dd><a href="#">HTML5</a><a href="#">Android</a><a href="#">IOS</a><a href="#">WP</a></dd></dl></div></div></div></div>

CSS代码

/*左侧分类*/
#sidebar {width: 230px;position: absolute;
}#sidebar .mainNavs{background-color: #fafafa;
}#sidebar .menu_main {width: 206px;padding: 6px 12px;border: 2px solid #fafafa;border-right: 0;overflow: hidden;position: relative;
}#sidebar .menu_main h2 {font-size: 18px;padding-left: 8px;font-weight:500;
}#sidebar .menu_main h2 span {width: 13px;height: 13px;background: url(img/arr.png)0 0 no-repeat;float: right;margin-top: 3px;
}#sidebar .menu_main a {float: left;/*规定段落中的文本不进行换行*/white-space: nowrap;margin: 0 5px 5px 0;padding:0 8px;
}#sidebar .menu_main a:hover{color:#019875;text-decoration: none;
}#sidebar .current .menu_main {background-color: #ffffff;border: 2px solid #c9cbce;border-right: none;z-index:102;
}/*左侧分类悬停效果*/
#sidebar .menu_sub {width: 540px;position: absolute;top: 0;left: 230px;z-index:101;border:2px solid #c9cbce;padding:15px 30px 5px 30px;background: #ffffff;
}#sidebar .menu_sub dl{margin: 0 0 20px;
}#sidebar .menu_sub dt{width: 70px;font-size: 14px;margin: 0;text-align: right;position: absolute;
}#sidebar .menu_sub dt a{padding: 0;color: #333;line-height: 28px;text-decoration: underline;
}#sidebar .menu_sub dt a:hover{color: #019875;text-decoration: underline;
}#sidebar .menu_sub dd{margin-left: 100px;overflow: hidden;
}#sidebar .menu_sub dd a {white-space: nowrap;padding: 0 15px;color: #777;line-height: 28px;margin-left: -1px;background: url(img/arr.png) -29px center no-repeat;
}#sidebar .menu_sub dd a:hover {color: #019875;text-decoration: underline;
}

JS代码

$("#sidebar .menubox").each(function (num) {$(this).hoverDelay({hoverDuring : 200,hoverEvent : function(){switch(num){case 0:$(this).addClass("current").children(".menu_sub").css({top: $(this).position().top}).removeClass('dn');break;case 1:$(this).addClass("current").children(".menu_sub").css({top : $(this).position().top + $(this).height() - $(this).children(".menu_sub").height() - 42}).removeClass('dn');break;case 2:$(this).addClass("current").children(".menu_sub").css({top : $(this).position().top + $(this).height() - $(this).children(".menu_sub").height() - 42}).removeClass('dn');break;default :$(this).removeClass("current").children(".menu_sub").css({top : $(this).position().top}).removeClass("dn")}},outEvent : function () {$(this).removeClass('current').children(".menu_sub").addClass('dn');}});});

JS插件

$(function () {placeholderFn()
}), function (a) {a.fn.hoverDelay = function (b) {var e, f, c = {hoverDuring: 200, outDuring: 200, hoverEvent: function () {a.noop()}, outEvent: function () {a.noop()}}, d = a.extend(c, b || {}), g = this;return a(this).each(function () {a(this).hover(function () {clearTimeout(f), e = setTimeout(function () {d.hoverEvent.apply(g)}, d.hoverDuring)}, function () {clearTimeout(e), f = setTimeout(function () {d.outEvent.apply(g)}, d.outDuring)})})}
}(jQuery);

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