Das Beispiel in diesem Artikel beschreibt die js-Implementierung des QQ-Panel-Faltmenücodes mit Puffereffekt. Teilen Sie es als Referenz mit allen. Die Details lauten wie folgt:
QQ-Panel-Faltmenücode mit Puffereffekt, Verwendungsmethode: Aufrufeffekt: Effekt(1,2);
Darunter ist 1: die ID des geänderten Objekts
Darunter ist 2: Die ID des Kontrollcontainers kann mithilfe von this.parentNode.id (der ID des übergeordneten Tags) erhalten werden
Der Betriebseffekt ist wie folgt:
http://demo.jb51.net/js/2015/js-buffer-style-qq-menu-codes/
Der spezifische Code lautet wie folgt:
<html>
<head>
<title>带缓冲效果的仿QQ面板折叠菜单代码</title>
<script>
function $G(Read_Id) { return document.getElementById(Read_Id) }
function Effect(ObjectId,parentId){
var Obj_Display = $G(ObjectId).style.display;
if (Obj_Display == 'none'){
Start(ObjectId,'Opens');
$G(parentId).innerHTML = "<a href=# onClick=javascript:Effect('"+ObjectId+"','"+parentId+"');>-</a>"
}else{
Start(ObjectId,'Close');
$G(parentId).innerHTML = "<a href=# onClick=javascript:Effect('"+ObjectId+"','"+parentId+"');>+</a>"
}
}
function Start(ObjId,method){
var BoxHeight = $G(ObjId).offsetHeight; //获取对象高度
var MinHeight = 5;//定义对象最小高度
var MaxHeight = 130;//定义对象最大高度
var BoxAddMax = 1;//递增量初始值
var Every_Add = 0.15;//每次的递(减)增量 [数值越大速度越快]
var Reduce = (BoxAddMax - Every_Add);
var Add = (BoxAddMax + Every_Add);
//关闭动作**
if (method == "Close"){
var Alter_Close = function(){//构建一个虚拟的[递减]循环
BoxAddMax /= Reduce;
BoxHeight -= BoxAddMax;
if (BoxHeight <= MinHeight){
$G(ObjId).style.display = "none";
window.clearInterval(BoxAction);
}
else $G(ObjId).style.height = BoxHeight;
}
var BoxAction = window.setInterval(Alter_Close,1);
}
//打开动作*
else if (method == "Opens"){
var Alter_Opens = function(){
BoxAddMax *= Add;
BoxHeight += BoxAddMax;
if (BoxHeight >= MaxHeight){
$G(ObjId).style.height = MaxHeight;
window.clearInterval(BoxAction);
}else{
$G(ObjId).style.display= "block";
$G(ObjId).style.height = BoxHeight;
}
}
var BoxAction = window.setInterval(Alter_Opens,1);
}
}
</script>
<style>
table{width:192px;overflow:hidden}
#control,#control table,#control table td{ font-size:12px;}
#control{ width:192px; background-color:#ccc; font-size:12px; font-color:#333333; text-align:center; }
#control table{ width:192px; height:20px; overflow:hidden}
#control table li{ list-style:none;height:20px;line-height:20px; overflow:hidden}
#control table .tabTit{background:#E0E8B8;}
#control a { font-weight:normal; font-size:24px; color:#6F7848; text-decoration:none; padding-right:10px;}
#control .testLink{ font-weight:bold; font-size:12px}
.test{ width:192px;background-color:#f6f6f6;overflow:hidden; }
.test li{ list-style:none; color:#000; font-size:13px; line-height:20px;}
#control table,.test table{ margin:0 auto; text-align:center}
.STYLE1 {
font-size: 8px;
color: #fff;
}
</style>
</head>
<body>
<div id="control">
<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tr>
<td width="100%" align="center" class="tabTit" ><li id="testtab" style="float:right"><a href="#" onClick="Effect('test',this.parentNode.id);" >+</a> </li><li style="float:left"><a href="#" onClick="Effect('test');" class="testLink">缓冲菜单</a> </li></td>
</tr>
</table>
</div>
<div id="test" class="test" style="display:none;">
<table width="100%" border="0" cellpadding="4" cellspacing="0" bgcolor="#EEEEEE">
<tr>
<td colspan="3" align="center" valign="top"><ul><li>缓冲菜单</li><li>缓冲菜单</li><li>缓冲菜单</li><li>缓冲菜单</li></ul></td>
</tr>
</table>
</div>
<br>
<div id="control">
<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tr>
<td width="100%" align="center" class="tabTit" ><li id="test1tab" style="float:right"><a href="#" onClick="Effect('test1',this.parentNode.id);" >+</a> </li><li style="float:left"><a href="#" onClick="Effect('test1');" class="testLink">缓冲菜单</a></li></td>
</tr>
</table>
</div>
<div id="test1" class="test" style="display:none;">
<table width="100%" border="0" cellpadding="4" cellspacing="0" bgcolor="#EEEEEE">
<tr>
<td colspan="3" align="center" valign="top"><ul><li>缓冲菜单</li><li>缓冲菜单</li><li>缓冲菜单</li><li>缓冲菜单</li><li>缓冲菜单</li><li>缓冲菜单</li><li>缓冲菜单</li><li>缓冲菜单</li><li>缓冲菜单</li><li>缓冲菜单</li></ul></td>
</tr>
</table>
</div>
<br>
<div id="control">
<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tr>
<td width="100%" align="center" class="tabTit" ><li id="test2tab" style="float:right"><a href="#" onClick="Effect('test2',this.parentNode.id);" >+</a> </li><li style="float:left"><a href="#" onClick="Effect('test2');" class="testLink">缓冲菜单</a></li></td>
</tr>
</table>
</div>
<div id="test2" class="test" style="display:none;">
<table width="100%" border="0" cellpadding="4" cellspacing="0" bgcolor="#EEEEEE">
<tr>
<td colspan="3" align="center" valign="top"><ul><li>缓冲菜单</li><li>缓冲菜单</li></ul></td>
</tr>
</table>
</div>
<br>
<div id="control">
<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tr>
<td width="100%" align="center" class="tabTit" ><li id="test3tab" style="float:right"><a href="#" onClick="Effect('test3',this.parentNode.id);" >+</a> </li><li style="float:left"><a href="#" onClick="Effect('test3');" class="testLink">缓冲菜单</a></li></td>
</tr>
</table>
</div>
<div id="test3" class="test" style="display:none;">
<table width="100%" border="0" cellpadding="4" cellspacing="0" bgcolor="#EEEEEE">
<tr>
<td colspan="3" align="center" valign="top"><ul><li>缓冲菜单</li><li>缓冲菜单</li></ul></td>
</tr>
</table>
</div>
<br>
<div id="control">
<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tr>
<td width="100%" align="center" class="tabTit" ><li id="test4tab" style="float:right"><a href="#" onClick="Effect('test4',this.parentNode.id);" >+</a> </li><li style="float:left"><a href="#" onClick="Effect('test4');" class="testLink">缓冲菜单</a></li></td>
</tr>
</table>
</div>
<div id="test4" class="test" style="display:none;">
<table width="100%" border="0" cellpadding="4" cellspacing="0" bgcolor="#EEEEEE">
<tr>
<td colspan="3" align="center" valign="top"><ul><li>缓冲菜单</li><li>缓冲菜单</li></ul></td>
</tr>
</table>
</div>
</body>
</html>
