Home > Design > 用jquery制作平滑弹出菜单
2009June . 6th

用jquery制作平滑弹出菜单

Design 3 comments

先看看演示demo，效果华丽吧？
Smooth-Navigational-Menu.gif.jpg
以下是源代码

< !DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<style type="text/css">
/*Example 1 Style*/
.ddsmoothmenu{
font: bold 12px Verdana;
background: #414141; /*background of menu bar (default state)*/
width: 100%;
}
 
.ddsmoothmenu ul{
z-index:100;
margin: 0;
padding: 0;
list-style-type: none;
}
 
/*Top level list items*/
.ddsmoothmenu ul li{
position: relative;
display: inline;
float: left;
}
 
/*Top level menu link items style*/
.ddsmoothmenu ul li a{
display: block;
background: #414141; /*background of menu items (default state)*/
color: white;
padding: 8px 10px;
border-right: 1px solid #778;
color: #2d2b2b;
text-decoration: none;
}
 
* html .ddsmoothmenu ul li a{ /*IE6 hack to get sub menu links to behave correctly*/
display: inline-block;
}
 
.ddsmoothmenu ul li a:link, .ddsmoothmenu ul li a:visited{
color: white;
}
 
.ddsmoothmenu ul li a.selected{ /*CSS class that's dynamically added to the currently active menu items' LI A element*/
background: black; 
color: white;
}
 
.ddsmoothmenu ul li a:hover{
background: black; /*background of menu items during onmouseover (hover state)*/
color: white;
}
 
/*1st sub level menu*/
.ddsmoothmenu ul li ul{
position: absolute;
left: 0;
display: none; /*collapse all sub menus to begin with*/
visibility: hidden;
}
 
/*Sub level menu list items (undo style from Top level List Items)*/
.ddsmoothmenu ul li ul li{
display: list-item;
float: none;
}
 
/*All subsequent sub menu levels vertical offset after 1st level sub menu */
.ddsmoothmenu ul li ul li ul{
top: 0;
}
 
/* Sub level menu links style */
.ddsmoothmenu ul li ul li a{
font: normal 13px Verdana;
width: 160px; /*width of sub menus*/
padding: 5px;
margin: 0;
border-top-width: 0;
border-bottom: 1px solid gray;
}
 
/* Holly Hack for IE \*/
* html .ddsmoothmenu{height: 1%;} /*Holly Hack for IE7 and below*/
 
 
/* ######### CSS classes applied to down and right arrow images  ######### */
 
.downarrowclass{
position: absolute;
top: 12px;
right: 7px;
}
 
.rightarrowclass{
position: absolute;
top: 6px;
right: 5px;
}
 
/* ######### CSS for shadow added to sub menus  ######### */
 
.ddshadow{
position: absolute;
left: 0;
top: 0;
width: 0;
height: 0;
background: silver;
}
 
.toplevelshadow{ /*shadow opacity. Doesn't work in IE*/
opacity: 0.8;
}
 
/*Example 2 Style*/
.ddsmoothmenu-v ul{
margin: 0;
padding: 0;
width: 170px; /* Main Menu Item widths */
list-style-type: none;
font: bold 12px Verdana;
 
border-bottom: 1px solid #ccc;
}
 
.ddsmoothmenu-v ul li{
position: relative;
}
 
/* Top level menu links style */
.ddsmoothmenu-v ul li a{
display: block;
overflow: auto; /*force hasLayout in IE7 */
color: white;
text-decoration: none;
padding: 6px;
border-bottom: 1px solid #778;
border-right: 1px solid #778;
}
 
.ddsmoothmenu-v ul li a:link, .ddsmoothmenu-v ul li a:visited, .ddsmoothmenu-v ul li a:active{
background: #414141; /*background of menu items (default state)*/
color: white;
}
 
 
.ddsmoothmenu-v ul li a.selected{ /*CSS class that's dynamically added to the currently active menu items' LI A element*/
background: black; 
color: white;
}
 
.ddsmoothmenu-v ul li a:hover{
background: black; /*background of menu items during onmouseover (hover state)*/
color: white;
}
 
/*Sub level menu items */
.ddsmoothmenu-v ul li ul{
position: absolute;
width: 170px; /*Sub Menu Items width */
top: 0;
font-weight: normal;
visibility: hidden;
}
 
 
/* Holly Hack for IE \*/
* html .ddsmoothmenu-v ul li { float: left; height: 1%; }
* html .ddsmoothmenu-v ul li a { height: 1%; }
/* End */
</style>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Smooth Navigational Menu </title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.2.6/jquery.min.js"></script>
<script type="text/javascript" src="ddsmoothmenu.js">
 
/***********************************************
* Smooth Navigational Menu
* This notice MUST stay intact for legal use
* Collection by bolo(http://digau.cn)
***********************************************/
 
</script>
 
<script type="text/javascript">
 
//** 1) Now supports vertical (side bar) menu mode- set "orientation" to 'v'
//** 2) In IE6, shadows are now always disabled
 
 
var ddsmoothmenu={
 
//Specify full URL to down and right arrow images (23 is padding-right added to top level LIs with drop downs):
//arrowimages: {down:['downarrowclass', 'down.gif', 23], right:['rightarrowclass', 'right.gif']},you can edit this row
 
transition: {overtime:300, outtime:300}, //duration of slide in/ out animation, in milliseconds
shadow: {enabled:true, offsetx:5, offsety:5},
 
///////Stop configuring beyond here///////////////////////////
 
detectwebkit: navigator.userAgent.toLowerCase().indexOf("applewebkit")!=-1, //detect WebKit browsers (Safari, Chrome etc)
detectie6: document.all && !window.XMLHttpRequest,
 
getajaxmenu:function($, setting){ //function to fetch external page containing the panel DIVs
	var $menucontainer=$('#'+setting.contentsource[0]) //reference empty div on page that will hold menu
	$menucontainer.html("Loading Menu...")
	$.ajax({
		url: setting.contentsource[1], //path to external menu file
		async: true,
		error:function(ajaxrequest){
			$menucontainer.html('Error fetching content. Server Response: '+ajaxrequest.responseText)
		},
		success:function(content){
			$menucontainer.html(content)
			ddsmoothmenu.buildmenu($, setting)
		}
	})
},
 
 
buildmenu:function($, setting){
	var smoothmenu=ddsmoothmenu
	var $mainmenu=$("#"+setting.mainmenuid+">ul") //reference main menu UL
	$mainmenu.parent().get(0).className=setting.classname || "ddsmoothmenu"
	var $headers=$mainmenu.find("ul").parent()
	$headers.hover(
		function(e){
			$(this).children('a:eq(0)').addClass('selected')
		},
		function(e){
			$(this).children('a:eq(0)').removeClass('selected')
		}
	)
	$headers.each(function(i){ //loop through each LI header
		var $curobj=$(this).css({zIndex: 100-i}) //reference current LI header
		var $subul=$(this).find('ul:eq(0)').css({display:'block'})
		this._dimensions={w:this.offsetWidth, h:this.offsetHeight, subulw:$subul.outerWidth(), subulh:$subul.outerHeight()}
		this.istopheader=$curobj.parents("ul").length==1? true : false //is top level header?
		$subul.css({top:this.istopheader && setting.orientation!='v'? this._dimensions.h+"px" : 0})
		//$curobj.children("a:eq(0)").css(this.istopheader? {paddingRight: smoothmenu.arrowimages.down[2]} : {}).append( //add arrow images
			//'<img src="'+ (this.istopheader && setting.orientation!='v'? smoothmenu.arrowimages.down[1] : smoothmenu.arrowimages.right[1])
			//+'" class="' + (this.istopheader && setting.orientation!='v'? smoothmenu.arrowimages.down[0] : smoothmenu.arrowimages.right[0])
			//+ '" style="border:0;" />'
		//)
		if (smoothmenu.shadow.enabled){
			this._shadowoffset={x:(this.istopheader?$subul.offset().left+smoothmenu.shadow.offsetx : this._dimensions.w), y:(this.istopheader? $subul.offset().top+smoothmenu.shadow.offsety : $curobj.position().top)} //store this shadow's offsets
			if (this.istopheader)
				$parentshadow=$(document.body)
			else{
				var $parentLi=$curobj.parents("li:eq(0)")
				$parentshadow=$parentLi.get(0).$shadow
			}
			this.$shadow=$('<div class="ddshadow'+(this.istopheader? ' toplevelshadow' : '')+'"></div>').prependTo($parentshadow).css({left:this._shadowoffset.x+'px', top:this._shadowoffset.y+'px'})  //insert shadow DIV and set it to parent node for the next shadow div
		}
		$curobj.hover(
			function(e){
				var $targetul=$(this).children("ul:eq(0)")
				this._offsets={left:$(this).offset().left, top:$(this).offset().top}
				var menuleft=this.istopheader && setting.orientation!='v'? 0 : this._dimensions.w
				menuleft=(this._offsets.left+menuleft+this._dimensions.subulw>$(window).width())? (this.istopheader && setting.orientation!='v'? -this._dimensions.subulw+this._dimensions.w : -this._dimensions.w) : menuleft //calculate this sub menu's offsets from its parent
				if ($targetul.queue().length< =1){ //if 1 or less queued animations
					$targetul.css({left:menuleft+"px", width:this._dimensions.subulw+'px'}).animate({height:'show',opacity:'show'}, ddsmoothmenu.transition.overtime)
					if (smoothmenu.shadow.enabled){
						var shadowleft=this.istopheader? $targetul.offset().left+ddsmoothmenu.shadow.offsetx : menuleft
						var shadowtop=this.istopheader?$targetul.offset().top+smoothmenu.shadow.offsety : this._shadowoffset.y
						if (!this.istopheader && ddsmoothmenu.detectwebkit){ //in WebKit browsers, restore shadow's opacity to full
							this.$shadow.css({opacity:1})
						}
						this.$shadow.css({overflow:'', width:this._dimensions.subulw+'px', left:shadowleft+'px', top:shadowtop+'px'}).animate({height:this._dimensions.subulh+'px'}, ddsmoothmenu.transition.overtime)
					}
				}
			},
			function(e){
				var $targetul=$(this).children("ul:eq(0)")
				$targetul.animate({height:'hide', opacity:'hide'}, ddsmoothmenu.transition.outtime)
				if (smoothmenu.shadow.enabled){
					if (ddsmoothmenu.detectwebkit){ //in WebKit browsers, set first child shadow's opacity to 0, as "overflow:hidden" doesn't work in them
						this.$shadow.children('div:eq(0)').css({opacity:0})
					}
					this.$shadow.css({overflow:'hidden'}).animate({height:0}, ddsmoothmenu.transition.outtime)
				}
			}
		) //end hover
	}) //end $headers.each()
	$mainmenu.find("ul").css({display:'none', visibility:'visible'})
},
 
init:function(setting){
	if (typeof setting.customtheme=="object" && setting.customtheme.length==2){ //override default menu colors (default/hover) with custom set?
		var mainmenuid='#'+setting.mainmenuid
		var mainselector=(setting.orientation=="v")? mainmenuid : mainmenuid+', '+mainmenuid
		document.write('<style type="text/css">\n'
			+mainselector+' ul li a {background:'+setting.customtheme[0]+';}\n'
			+mainmenuid+' ul li a:hover {background:'+setting.customtheme[1]+';}\n'
		+'')
	}
	this.shadow.enabled=(document.all && !window.XMLHttpRequest)? false : true //in IE6, always disable shadow
	jQuery(document).ready(function($){ //ajax menu?
		if (typeof setting.contentsource=="object"){ //if external ajax menu
			ddsmoothmenu.getajaxmenu($, setting)
		}
		else{ //else if markup menu
			ddsmoothmenu.buildmenu($, setting)
		}
	})
}
 
} //end ddsmoothmenu variable
 
//Initialize Menu instance(s):
 
 
ddsmoothmenu.init({
	mainmenuid: "smoothmenu1", //menu DIV id
	orientation: 'h', //Horizontal or vertical menu: Set to "h" or "v"
	classname: 'ddsmoothmenu', //class added to menu's outer DIV
	//customtheme: ["#1c5a80", "#18374a"],
	contentsource: "markup" //"markup" or ["container_id", "path_to_menu_file"]
})
 
ddsmoothmenu.init({
	mainmenuid: "smoothmenu2", //Menu DIV id
	orientation: 'v', //Horizontal or vertical menu: Set to "h" or "v"
	classname: 'ddsmoothmenu-v', //class added to menu's outer DIV
	//customtheme: ["#804000", "#482400"],
	contentsource: "markup" //"markup" or ["container_id", "path_to_menu_file"]
})
 
 
</script>
</head>
 
<body>
<h2>Example 1</h2>
 
<div id="smoothmenu1" class="ddsmoothmenu">
<ul>
<li><a href="http://www.digau.cn">Item 1</a></li>
<li><a href="#">Folder 0</a>
  <ul>
  <li><a href="#">Sub Item 1.1</a></li>
  <li><a href="#">Sub Item 1.2</a></li>
  <li><a href="#">Sub Item 1.3</a></li>
  <li><a href="#">Sub Item 1.4</a></li>
  <li><a href="#">Sub Item 1.2</a></li>
  <li><a href="#">Sub Item 1.3</a></li>
  <li><a href="#">Sub Item 1.4</a></li>
  </ul>
</li>
<li><a href="#">Folder 1</a>
  <ul>
  <li><a href="#">Sub Item 1.1</a></li>
  <li><a href="#">Sub Item 1.2</a></li>
  <li><a href="#">Sub Item 1.3</a></li>
  <li><a href="#">Sub Item 1.4</a></li>
  <li><a href="#">Sub Item 1.2</a></li>
  <li><a href="#">Sub Item 1.3</a></li>
  <li><a href="#">Sub Item 1.4</a></li>
  </ul>
</li>
<li><a href="#">Item 3</a></li>
<li><a href="#">Folder 2</a>
  <ul>
  <li><a href="#">Sub Item 2.1</a></li>
  <li><a href="#">Folder 2.1</a>
    <ul>
    <li><a href="#">Sub Item 2.1.1</a></li>
    <li><a href="#">Sub Item 2.1.2</a></li>
    <li><a href="#">Folder 3.1.1</a>
		<ul>
    		<li><a href="#">Sub Item 3.1.1.1</a></li>
    		<li><a href="#">Sub Item 3.1.1.2</a></li>
    		<li><a href="#">Sub Item 3.1.1.3</a></li>
    		<li><a href="#">Sub Item 3.1.1.4</a></li>
    		<li><a href="#">Sub Item 3.1.1.5</a></li>
		</ul>
    </li>
    <li><a href="#">Sub Item 2.1.4</a></li>
    </ul>
  </li>
  </ul>
</li>
<li><a href="http://www.digau.cn">Item 4</a></li>
</ul>
<br style="clear: left" />
</div>
 
 
<h2 style="margin-top:200px">Example 2</h2>
 
<div id="smoothmenu2" class="ddsmoothmenu-v">
<ul>
<li><a href="http://www.digau.cn">Item 1</a></li>
<li><a href="#">Folder 0</a>
  <ul>
  <li><a href="#">Sub Item 1.1</a></li>
  <li><a href="#">Sub Item 1.2</a></li>
  <li><a href="#">Sub Item 1.3</a></li>
  <li><a href="#">Sub Item 1.4</a></li>
  <li><a href="#">Sub Item 1.2</a></li>
  <li><a href="#">Sub Item 1.3</a></li>
  <li><a href="#">Sub Item 1.4</a></li>
  </ul>
</li>
<li><a href="#">Folder 1</a>
  <ul>
  <li><a href="#">Sub Item 1.1</a></li>
  <li><a href="#">Sub Item 1.2</a></li>
  <li><a href="#">Sub Item 1.3</a></li>
  <li><a href="#">Sub Item 1.4</a></li>
  <li><a href="#">Sub Item 1.2</a></li>
  <li><a href="#">Sub Item 1.3</a></li>
  <li><a href="#">Sub Item 1.4</a></li>
  </ul>
</li>
<li><a href="#">Item 3</a></li>
<li><a href="#">Folder 2</a>
  <ul>
  <li><a href="#">Sub Item 2.1</a></li>
  <li><a href="#">Folder 2.1</a>
    <ul>
    <li><a href="#">Sub Item 2.1.1</a></li>
    <li><a href="#">Sub Item 2.1.2</a></li>
    <li><a href="#">Folder 3.1.1</a>
		<ul>
    		<li><a href="#">Sub Item 3.1.1.1</a></li>
    		<li><a href="#">Sub Item 3.1.1.2</a></li>
    		<li><a href="#">Sub Item 3.1.1.3</a></li>
    		<li><a href="#">Sub Item 3.1.1.4</a></li>
    		<li><a href="#">Sub Item 3.1.1.5</a></li>
		</ul>
    </li>
    <li><a href="#">Sub Item 2.1.4</a></li>
    </ul>
  </li>
  </ul>
</li>
<li><a href="http://www.digau.cn">Item 4</a></li>
</ul>
<br style="clear: left" />
Collection by <a href="http://digau.cn">digAu.cn</a>
</div></body>
</html>

本例还可以给有子菜单的项加上标记，查找

//arrowimages: {down:['downarrowclass', 'down.gif', 23], right:['rightarrowclass', 'right.gif']},you can edit this row

改成

arrowimages: {down:['downarrowclass', 'down.gif', 23], right:['rightarrowclass', 'right.gif']}

再查找

		//$curobj.children("a:eq(0)").css(this.istopheader? {paddingRight: smoothmenu.arrowimages.down[2]} : {}).append( //add arrow images
			//'<img src="'+ (this.istopheader && setting.orientation!='v'? smoothmenu.arrowimages.down[1] : smoothmenu.arrowimages.right[1])
			//+'" class="' + (this.istopheader && setting.orientation!='v'? smoothmenu.arrowimages.down[0] : smoothmenu.arrowimages.right[0])
			//+ '" style="border:0;" />'
		//)

改成

		$curobj.children("a:eq(0)").css(this.istopheader? {paddingRight: smoothmenu.arrowimages.down[2]} : {}).append( //add arrow images
			'<img src="'+ (this.istopheader && setting.orientation!='v'? smoothmenu.arrowimages.down[1] : smoothmenu.arrowimages.right[1])
			+'" class="' + (this.istopheader && setting.orientation!='v'? smoothmenu.arrowimages.down[0] : smoothmenu.arrowimages.right[0])
			+ '" style="border:0;" />'
		)

这样需要一个右箭头和一个下箭头共两个图片，可以自己去找。

, 推荐到豆瓣
  1. 2009June . 6th - 3:36 PM
    huahua

    效果很好，收藏了。

    Reply
  2. 2009June . 6th - 4:50 PM
    schuen

    一直在用jquery

    Reply
  3. 2009June . 6th - 7:06 PM
    Chuanle

    嗯，的确很不错，先记着，回去试验试验，哈哈。

    Reply

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