如何创建一个简单的三级jQuery Accordion菜单？

Question

你能帮我制作一个三级jQuery手风琴菜单吗？

我有一个功能很好的两级手风琴，但增加第三级已被证明是一个问题。

菜单HTML非常简单，有三个级别的UL：

<ul class="accordion">
<li><a href="#">1</a>
    <ul>
        <li><a href="#">2</a>
            <ul>
                <li><a href="#">3</a></li>
                <li><a href="#">3</a></li>
                <li><a href="#">3</a></li>
            </ul>
        </li>
    </ul>
</li>
<li><a href="#">1</a>
    <ul>
        <li><a href="#">2</a>
            <ul>
                <li><a href="#">3</a></li>
                <li><a href="#">3</a></li>
                <li><a href="#">3</a></li>
            </ul>
        </li>
    </ul>
</li>
<li><a href="#">1</a>
    <ul>
        <li><a href="#">2</a>
            <ul>
                <li><a href="#">3</a></li>
                <li><a href="#">3</a></li>
                <li><a href="#">3</a></li>
            </ul>
        </li>
    </ul>
</li>
</ul>

调用的脚本是jquery 1.9.1和jquery ui 1.9.2，菜单使用accordion函数。

菜单开始于：

$(function() {
   $( ".accordion" ).accordion({    
      autoHeight: false,
      navigation: true,
      active: false
   });
});

但是当我添加第三级时，所有级别项都保持打开和可点击状态。

我花了相当多的时间阅读Accordion文档，但找不到制作第三级功能的方法。

当我尝试双重定位时，我让菜单正常运行（正确滑动），但是我无法点击第三级的链接！

$(function() {
   $( ".accordion, .accordion ul" ).accordion({ 
      autoHeight: false,
      navigation: true,
      active: false
   });
});

Answer 1

这是创建多级Jquery Accordion菜单的一种非常简单的方法

JS Fiddle Link：http://jsfiddle.net/abidkhanweb/pwhz1zc4/

( function( $ ) {
$( document ).ready(function() {
$('#cssmenu li.has-sub>a').on('click', function(){
		$(this).removeAttr('href');
		var element = $(this).parent('li');
		if (element.hasClass('open')) {
			element.removeClass('open');
			element.find('li').removeClass('open');
			element.find('ul').slideUp();
		}
		else {
			element.addClass('open');
			element.children('ul').slideDown();
			element.siblings('li').children('ul').slideUp();
			element.siblings('li').removeClass('open');
			element.siblings('li').find('li').removeClass('open');
			element.siblings('li').find('ul').slideUp();
		}
	});

	$('#cssmenu>ul>li.has-sub>a').append('<span class="holder"></span>');

	(function getColor() {
		var r, g, b;
		var textColor = $('#cssmenu').css('color');
		textColor = textColor.slice(4);
		r = textColor.slice(0, textColor.indexOf(','));
		textColor = textColor.slice(textColor.indexOf(' ') + 1);
		g = textColor.slice(0, textColor.indexOf(','));
		textColor = textColor.slice(textColor.indexOf(' ') + 1);
		b = textColor.slice(0, textColor.indexOf(')'));
		var l = rgbToHsl(r, g, b);
		if (l > 0.7) {
			$('#cssmenu>ul>li>a').css('text-shadow', '0 1px 1px rgba(0, 0, 0, .35)');
			$('#cssmenu>ul>li>a>span').css('border-color', 'rgba(0, 0, 0, .35)');
		}
		else
		{
			$('#cssmenu>ul>li>a').css('text-shadow', '0 1px 0 rgba(255, 255, 255, .35)');
			$('#cssmenu>ul>li>a>span').css('border-color', 'rgba(255, 255, 255, .35)');
		}
	})();

	function rgbToHsl(r, g, b) {
	    r /= 255, g /= 255, b /= 255;
	    var max = Math.max(r, g, b), min = Math.min(r, g, b);
	    var h, s, l = (max + min) / 2;

	    if(max == min){
	        h = s = 0;
	    }
	    else {
	        var d = max - min;
	        s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
	        switch(max){
	            case r: h = (g - b) / d + (g < b ? 6 : 0); break;
	            case g: h = (b - r) / d + 2; break;
	            case b: h = (r - g) / d + 4; break;
	        }
	        h /= 6;
	    }
	    return l;
	}
});
} )( jQuery );

#cssmenu,
#cssmenu ul,
#cssmenu ul li,
#cssmenu ul li a {
  margin: 0;
  padding: 0;
  border: 0;
  list-style: none;
  line-height: 1;
  display: block;
  position: relative;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}
#cssmenu {
  width: 200px;
  font-family: Helvetica, Arial, sans-serif;
  color: #ffffff;
}
#cssmenu ul ul {
  display: none;
}
.align-right {
  float: right;
}
#cssmenu > ul > li > a {
  padding: 15px 20px;
  border-left: 1px solid #1682ba;
  border-right: 1px solid #1682ba;
  border-top: 1px solid #1682ba;
  cursor: pointer;
  z-index: 2;
  font-size: 14px;
  font-weight: bold;
  text-decoration: none;
  color: #ffffff;
  text-shadow: 0 1px 1px rgba(0, 0, 0, 0.35);
  background: #36aae7;
  background: -webkit-linear-gradient(#36aae7, #1fa0e4);
  background: -moz-linear-gradient(#36aae7, #1fa0e4);
  background: -o-linear-gradient(#36aae7, #1fa0e4);
  background: -ms-linear-gradient(#36aae7, #1fa0e4);
  background: linear-gradient(#36aae7, #1fa0e4);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15);
}
#cssmenu > ul > li > a:hover,
#cssmenu > ul > li.active > a,
#cssmenu > ul > li.open > a {
  color: #eeeeee;
  background: #1fa0e4;
  background: -webkit-linear-gradient(#1fa0e4, #1992d1);
  background: -moz-linear-gradient(#1fa0e4, #1992d1);
  background: -o-linear-gradient(#1fa0e4, #1992d1);
  background: -ms-linear-gradient(#1fa0e4, #1992d1);
  background: linear-gradient(#1fa0e4, #1992d1);
}
#cssmenu > ul > li.open > a {
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15), 0 1px 1px rgba(0, 0, 0, 0.15);
  border-bottom: 1px solid #1682ba;
}
#cssmenu > ul > li:last-child > a,
#cssmenu > ul > li.last > a {
  border-bottom: 1px solid #1682ba;
}
.holder {
  width: 0;
  height: 0;
  position: absolute;
  top: 0;
  right: 0;
}
.holder::after,
.holder::before {
  display: block;
  position: absolute;
  content: "";
  width: 6px;
  height: 6px;
  right: 20px;
  z-index: 10;
  -webkit-transform: rotate(-135deg);
  -moz-transform: rotate(-135deg);
  -ms-transform: rotate(-135deg);
  -o-transform: rotate(-135deg);
  transform: rotate(-135deg);
}
.holder::after {
  top: 17px;
  border-top: 2px solid #ffffff;
  border-left: 2px solid #ffffff;
}
#cssmenu > ul > li > a:hover > span::after,
#cssmenu > ul > li.active > a > span::after,
#cssmenu > ul > li.open > a > span::after {
  border-color: #eeeeee;
}
.holder::before {
  top: 18px;
  border-top: 2px solid;
  border-left: 2px solid;
  border-top-color: inherit;
  border-left-color: inherit;
}
#cssmenu ul ul li a {
  cursor: pointer;
  border-bottom: 1px solid #32373e;
  border-left: 1px solid #32373e;
  border-right: 1px solid #32373e;
  padding: 10px 20px;
  z-index: 1;
  text-decoration: none;
  font-size: 13px;
  color: #eeeeee;
  background: #49505a;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
}
#cssmenu ul ul li:hover > a,
#cssmenu ul ul li.open > a,
#cssmenu ul ul li.active > a {
  background: #424852;
  color: #ffffff;
}
#cssmenu ul ul li:first-child > a {
  box-shadow: none;
}
#cssmenu ul ul ul li:first-child > a {
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
}
#cssmenu ul ul ul li a {
  padding-left: 30px;
}
#cssmenu > ul > li > ul > li:last-child > a,
#cssmenu > ul > li > ul > li.last > a {
  border-bottom: 0;
}
#cssmenu > ul > li > ul > li.open:last-child > a,
#cssmenu > ul > li > ul > li.last.open > a {
  border-bottom: 1px solid #32373e;
}
#cssmenu > ul > li > ul > li.open:last-child > ul > li:last-child > a {
  border-bottom: 0;
}
#cssmenu ul ul li.has-sub > a::after {
  display: block;
  position: absolute;
  content: "";
  width: 5px;
  height: 5px;
  right: 20px;
  z-index: 10;
  top: 11.5px;
  border-top: 2px solid #eeeeee;
  border-left: 2px solid #eeeeee;
  -webkit-transform: rotate(-135deg);
  -moz-transform: rotate(-135deg);
  -ms-transform: rotate(-135deg);
  -o-transform: rotate(-135deg);
  transform: rotate(-135deg);
}
#cssmenu ul ul li.active > a::after,
#cssmenu ul ul li.open > a::after,
#cssmenu ul ul li > a:hover::after {
  border-color: #ffffff;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
    <div id='cssmenu'>
<ul>
   <li><a href='#'><span>Home</span></a></li>
   <li class='active has-sub'><a href='#'><span>Products</span></a>
      <ul>
         <li class='has-sub'><a href='#'><span>Product 1</span></a>
            <ul>
               <li><a href='#'><span>Sub Product</span></a></li>
               <li class='last has-sub'><a href='#'><span>Sub Product</span></a>
               	
                    <ul>
                       <li><a href='#'><span>Sub Product</span></a></li>
                       <li class='last'><a href='#'><span>Sub Product</span></a></li>
                    </ul>
      
               </li>
            </ul>
         </li>
         <li><a href='#'><span>Product 2</span></a></li>
      </ul>
   </li>
   <li><a href='#'><span>About</span></a></li>
   <li class='last'><a href='#'><span>Contact</span></a></li>
</ul>
</div>

Answer 2

尝试添加collapsible:true，它可能适合你。

但是：ぁzxswい

http://jsfiddle.net/GCu2D/756/

Answer 3

我花了相当多的时间思考这个问题，最终解决方案变得更加简单。

首先需要为所有UL元素启动手风琴：

$(function () {
    $("ul").accordion({
        autoHeight: false,
        navigation: true,
        active: false,
        collapsible: true
    });
});

而不是破坏手风琴的水平与需要激活的链接（点击激活）。

$(function() {
   $( ".accordion ul" ).accordion({    
      autoHeight: false,
      navigation: true,
      active: false,
   });
});

就是这样。 :-)