JS基于myFocus库实现各种功能的tab选项卡切换效果
本文实例讲述了JS基于myFocus库实现各种功能的tab选项卡切换效果。分享给大家供大家参考。具体如下：
这里介绍使用myFocus-tab实现各种功能的选项卡切换，有的是带有动画效果的，各款基于myFocus库制作的焦点图风格皮肤，可自行按需选择，myFocus焦点图库及皮肤可自由使用，保留作者相关信息即可，谢谢支持！^^
运行效果截图如下：
在线演示地址如下：
http://demo.phpstudy.net/js/2015/js-myfocus-plug-tab-cha-nav-codes/
具体代码如下：
<!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\">
<head>
<title>myFocus-tab 各种功能的选项卡切换</title>
<style type=\"text/css\">
* { margin:0; padding:0; border:0; list-style:none; }
body { background:#fff; padding:20px; font:1em Verdana, Geneva, sans-serif; }
.box { float:left; margin-right:20px; }
.box h4 { color:#c00; line-height:30px; font-size:12px; }
.tip { border:1px solid #dedede; margin-top:20px; }
.tip p { height:30px; line-height:30px; padding-left:16px; background:#f1f1f1; }
.tip pre { background:##AFF8AB; }
.tip2 { font-size:12px; color:#888; margin-top:16px; }
.mF_tab { width:426px; height:90px; margin-left:16px; }
.mF_tab .btn { position:absolute; top:0; left:0; z-index:2; }
.mF_tab .btn li { float:left; width:80px; height:26px; line-height:26px; text-align:center; margin-right:2px; border:1px solid #dedede; border-bottom:0; cursor:pointer; background:#f1f1f1; }
.mF_tab .btn li.current { height:27px; background:#fff; }
.mF_tab .cont { position:absolute; top:27px; left:0; border:1px solid #dedede; overflow:hidden; }
.mF_tab .cont .swt { position:absolute; left:0; top:0; }
.mF_tab .cont .swt li p { padding:16px; }
</style>
<script type=\"text/javascript\">
var myFocus={
$:function(id){return document.getElementById(id);},
$$:function(tag,obj){return (typeof obj==\'object\'?obj:this.$(obj)).getElementsByTagName(tag);},
$$_:function(tag,obj){
var arr=[],n=0,a=obj.getElementsByTagName(tag);
for(var i=0;i<a.length;i++){
arr.push(a[i]);
if(a[i].getElementsByTagName(tag).length){n=a[i].getElementsByTagName(tag).length}
i=i+n;n=0;
} return arr;
},
$li:function(obj,n){return this.$$_(\'li\',this.$$_(\'ul\',obj)[n])},
linear:function(t,b,c,d){return c*t/d + b;},
easeIn:function(t,b,c,d){return c*(t/=d)*t*t*t + b;},
easeOut:function(t,b,c,d){return -c*((t=t/d-1)*t*t*t - 1) + b;},
easeInOut:function(t,b,c,d){return ((t/=d/2) < 1)?(c/2*t*t*t*t + b):(-c/2*((t-=2)*t*t*t - 2) + b);},
style:function(obj,style){return obj[\'offset\'+style.replace(/^(.)/,new Function(\'return arguments[1].toUpperCase()\'))];},
opa:function(obj,v){
if(v!=undefined) {v=v>100?100:(v<0?0:v); obj.style.filter = \"alpha(opacity=\" + v + \")\"; obj.style.opacity = (v / 100);}
else return (!+[1,])?((obj.filters.alpha)?obj.filters.alpha.opacity:100):((obj.style.opacity)?obj.style.opacity*100:100);
},
animate:function(obj,prop,val,spd,type,fn){
var opa=prop==\'opacity\'?true:false;
if(opa&&obj.style.display==\'none\'){obj.style.display=\'\';this.opa(obj,0);}
var t=0,b=opa?this.opa(obj):parseInt(this.style(obj,prop)),c=val-b,d=spd||50,st=type||\'easeOut\',m=c>0?\'ceil\':\'floor\';
if(obj[prop+\'Timer\']) clearInterval(obj[prop+\'Timer\']);
obj[prop+\'Timer\']=setInterval(function(){
if(opa&&t<d){myFocus.opa(obj,Math[m](myFocus[st](++t,b,c,d)));}
else if(!opa&&t<d){obj.style[prop]=Math[m](myFocus[st](++t,b,c,d))+\'px\';}
else {if(opa&&val==0){obj.style.display=\'none\'}clearInterval(obj[prop+\'Timer\']);fn&&fn.call(obj);}
},10);return this;
},
fadeIn:function(obj,speed,fn){this.animate(obj,\'opacity\',100,speed==undefined?20:speed,\'linear\',fn);return this;},
fadeOut:function(obj,speed,fn){this.animate(obj,\'opacity\',0,speed==undefined?20:speed,\'linear\',fn);return this;},
slide:function(obj,params,speed,easing,fn){for(var p in params) this.animate(obj,p,params[p],speed,easing,fn);return this;},
stop:function(obj){
var animate=[\'left\',\'right\',\'top\',\'bottom\',\'width\',\'height\',\'opacity\'];
for(var i=0;i<animate.length;i++) if(obj[animate[i]+\'Timer\']) clearInterval(obj[animate[i]+\'Timer\']);
return this;
},
initCSS:function(p){
var css=[],oStyle = document.createElement(\'style\');oStyle.type=\'text/css\';
if(p.width){css.push(\'.\'+p.style+\' *{margin:0;padding:0;border:0;list-style:none;}.\'+p.style+\'{position:relative;width:\'+p.width+\'px;height:\'+p.height+\'px;overflow:hidden;font:12px/1.5 Verdana,Geneva,sans-serif;background:#fff;}.\'+p.style+\' .loading{position:absolute;z-index:9999;width:100%;height:100%;color:#666;text-align:center;padding-top:\'+0.3*p.height+\'px;background:#fff}.\'+p.style+\' .txt li,.\'+p.style+\' .txt li span,.\'+p.style+\' .txt-bg{width:\'+p.width+\'px;height:\'+p.txtHeight+\'px;line-height:\'+p.txtHeight+\'px;overflow:hidden;}\')}
if(oStyle.styleSheet){oStyle.styleSheet.cssText=css.join(\'\');} else {oStyle.innerHTML=css.join(\'\');}
var oHead = this.$$(\'head\',document)[0];oHead.insertBefore(oStyle,oHead.firstChild);
},
setting:function(par){
if(window.attachEvent){(function(){try{myFocus.$(par.id).className=par.style;myFocus.initCSS(par);}catch(e){setTimeout(arguments.callee,0);}})();window.attachEvent(\'onload\',function(){myFocus[par.style](par)});}
else{document.addEventListener(\"DOMContentLoaded\",function(){myFocus.$(par.id).className=par.style;myFocus.initCSS(par);},false);window.addEventListener(\'load\',function(){myFocus[par.style](par)},false);}
},
addList:function(obj,cla){
var s=[],n=this.$li(obj,0).length,num=cla.length;
for(var j=0;j<num;j++){
s.push(\'<ul class=\'+cla[j]+\'>\');
for(var i=0;i<n;i++){s.push(\'<li>\'+(cla[j]==\'num\'?(\'<a>\'+(i+1)+\'</a>\'):(cla[j]==\'txt\'?this.$li(obj,0)[i].innerHTML.replace(/\\>(.|\\n|\\r)*?(\\<\\/a\\>)/i,\'>\'+(this.$$(\'img\',obj)[i]?this.$$(\'img\',obj)[i].alt:\'\')+\'</a>\'):(cla[j]==\'thumb\'?\'<img src=\'+(this.$$(\'img\',obj)[i].getAttribute(\"thumb\")||this.$$(\'img\',obj)[i].src)+\' />\':\'\')))+\'<span></span></li>\')};
s.push(\'</ul>\');
}; obj.innerHTML+=s.join(\'\');
},
switchMF:function(fn1,fn2){
return \"box.removeChild(this.$$(\'div\',box)[0]);var run=function(idx){(\"+fn1+\")();if (index == n - 1) index = -1;var next = idx != undefined ? idx: index + 1;(\"+fn2+\")();index=next;};run(index);if(par.auto!==false) var auto=setInterval(function(){run()},t);box.onmouseover=function(){if(auto) clearInterval(auto);};box.onmouseout=function(){if(auto) auto=setInterval(function(){run()},t);}\"
},
bind:function(arrStr,type,delay){
return \"for (var j=0;j<n;j++){\"+arrStr+\"[j].index=j;if(\"+type+\"==\'click\'){\"+arrStr+\"[j].onmouseover=function(){if(this.className!=\'current\') this.className=\'hover\'};\"+arrStr+\"[j].onmouseout=function(){if(this.className==\'hover\') this.className=\'\'};\"+arrStr+\"[j].onclick=function(){if(this.index!=index) run(this.index)};}else if(\"+type+\"==\'mouseover\'){\"+arrStr+\"[j].onmouseover=function(){var self=this;if(\"+delay+\"==0){if(!self.className) run(self.index)}else \"+arrStr+\".d=setTimeout(function(){if(!self.className) run(self.index)},\"+(delay==undefined?100:delay)+\")};\"+arrStr+\"[j].onmouseout=function(){clearTimeout(\"+arrStr+\".d)};}else{alert(\'myFocus 不支持这样的事件 \\\"\'+\"+type+\"+\'\\\"\');break;}}\"
},
extend:function(fnObj){for(var p in fnObj) this[p]=fnObj[p];}
};
myFocus.extend({
mF_tab:function(par){
var box=this.$(par.id);
this.$$(\'ul\',box)[1].innerHTML=\'<li><ul class=swt>\'+this.$$(\'ul\',box)[1].innerHTML+\'</ul></li>\';
var btn=this.$li(box,0),wrap=this.$$(\'ul\',box)[1],swt=this.$$(\'ul\',box)[2],cont=this.$$_(\'li\',swt);
var index=par.index||0,n=btn.length,t=par.time*1000;
swt.style.width=n*par.width+\'px\';
for(var i=0;i<n;i++) cont[i].style.cssText=\'width:\'+par.width+\'px;height:\'+par.height+\'px;float:left;\';
par.height=par.height==\'auto\'?swt.offsetHeight:par.height;
wrap.style.cssText=\'width:\'+par.width+\'px;height:\'+par.height+\'px;\';
box.style.cssText=\'width:\'+(par.width+2)+\'px;height:\'+(par.height+29)+\'px;\';
if(par.type==\'fade\'||par.type==\'none\'){for(var i=0;i<n;i++) cont[i].style.display=\'none\';}
eval(this.switchMF(function(){
btn[index].className=\'\';
if(par.type==\'fade\'||par.type==\'none\') cont[index].style.display=\'none\';
},function(){
if(par.type==\'slide\') myFocus.slide(swt,{left:-(next*par.width)},20,\'easeInOut\')
if(par.type==\'fade\') myFocus.fadeIn(cont[next]);
if(par.type==\'none\') cont[next].style.display=\'\';
btn[next].className=\'current\';
}))
eval(this.bind(\'btn\',\'par.trigger\',par.delay));
}
})
var tabWrap=function(){myFocus.setting({
style:\'mF_tab\',
id:\'tabWrap\',
trigger:\'mouseover\',
type:\'slide\',
auto:false,
time:2,
width:600,
height:361
});
}
var tabInner1=function(){myFocus.setting({
style:\'mF_tab\',
id:\'tabInner1\',
trigger:\'mouseover\',
type:\'slide\',
auto:false,
time:2,
width:500,
height:261
});
}
var tabInner2=function(){myFocus.setting({
style:\'mF_tab\',
id:\'tabInner2\',
trigger:\'mouseover\',
type:\'slide\',
auto:true,
time:2,
width:400,
height:61
});
}
if(!+[1,]){tabInner2();tabInner1();tabWrap();}
else{tabWrap();tabInner1();tabInner2();}
myFocus.setting({
style:\'mF_tab\',
id:\'qqTab\',
trigger:\'mouseover\',
type:\'slide\',
auto:true,
time:2,
width:600,
height:106
});
myFocus.setting({
style:\'mF_tab\',
id:\'qqTabAuto\',
trigger:\'mouseover\',
type:\'fade\',
auto:false,
time:2,
width:600,
height:\'auto\'
});
</script>
</head>
<body>
<div class=\"box\">
<h4>支持无限嵌套</h4>
<div id=\"tabWrap\">
<div class=\"loading\"><span>请稍候...</span></div>
<!--载入画面-->
<ul class=\"btn\">
<!--标题-->
<li>朋友</li>
<li>兄弟</li>
<li>亲人</li>
<li>情人</li>
</ul>
<ul class=\"cont\">
<!--内容-->
<li>
<p>朋友朋友朋友</p>
<div id=\"tabInner1\">
<div class=\"loading\"><span>请稍候...</span></div>
<!--载入画面-->
<ul class=\"btn\">
<!--标题-->
<li>朋友</li>
<li>兄弟</li>
<li>亲人</li>
<li>情人</li>
</ul>
<ul class=\"cont\">
<!--内容-->
<li>
<p>朋友朋友朋友</p>
<div id=\"tabInner2\">
<div class=\"loading\"><span>请稍候...</span></div>
<!--载入画面-->
<ul class=\"btn\">
<!--标题-->
<li>朋友</li>
<li>兄弟</li>
<li>亲人</li>
<li>情人</li>
</ul>
<ul class=\"cont\">
<!--内容-->
<li>
<p>朋友朋友朋友</p>
</li>
<li>
<p>兄弟兄弟兄弟</p>
</li>
<li>
<p>亲人亲人亲人</p>
</li>
<li>
<p>情人情人情人</p>
</li>
</ul>
</div>
</li>
<li>
<p>兄弟兄弟兄弟</p>
</li>
<li>
<p>亲人亲人亲人</p>
</li>
<li>
<p>情人情人情人</p>
</li>
</ul>
</div>
</li>
<li>
<p>兄弟兄弟兄弟</p>
</li>
<li>
<p>亲人亲人亲人</p>
</li>
<li>
<p>情人情人情人</p>
</li>
</ul>
</div>
</div>
<style>
.qqTab{margin-bottom:12px;}
.qqTab .btn li { background:#A1DEFE;border-color:#36BAF0; }
.qqTab .btn li.current { height:27px; background:#F9FEFF; }
.qqTab .cont{border-color:#36BAF0; }
.qqTab .list{float:left;overflow:hidden;text-align:center;margin:16px;margin-right:0;display:inline;}
.qqTab .list ul li{list-style:circle;}
.qqTab .left{width:150px;background:#1EB2EF;}
.qqTab .middle{width:236px;background:#D4F2FD;}
.qqTab .right{width:150px;background:#CE4982;}
</style>
<div class=\"box qqTab\">
<h4>仿QQ今日要闻实例</h4>
<div id=\"qqTab\">
<div class=\"loading\"><span>请稍候...</span></div>
<!--载入画面-->
<ul class=\"btn\">
<!--标题-->
<li>新闻</li>
<li>财经</li>
<li>娱乐</li>
<li>体育</li>
</ul>
<ul class=\"cont\">
<!--内容-->
<li>
<div class=\"list left\">
<ul>
<li>新闻左列表</li>
<li>新闻左列表</li>
<li>新闻左列表</li>
<li>新闻左列表</li>
</ul>
</div>
<div class=\"list middle\">
<ul>
<li>新闻中列表</li>
<li>新闻中列表</li>
<li>新闻中列表</li>
<li>新闻中列表</li>
</ul>
</div>
<div class=\"list right\">
<ul>
<li>新闻右列表</li>
<li>新闻右列表</li>
<li>新闻右列表</li>
<li>新闻右列表</li>
</ul>
</div>
</li>
<li>
<div class=\"list left\">
<ul>
<li>财经左列表</li>
<li>财经左列表</li>
<li>财经左列表</li>
<li>财经左列表</li>
</ul>
</div>
<div class=\"list middle\">
<ul>
<li>财经中列表</li>
<li>财经中列表</li>
<li>财经中列表</li>
<li>财经中列表</li>
</ul>
</div>
<div class=\"list right\">
<ul>
<li>财经右列表</li>
<li>财经右列表</li>
<li>财经右列表</li>
<li>财经右列表</li>
</ul>
</div>
</li>
<li>
<div class=\"list left\">
<ul>
<li>娱乐左列表</li>
<li>娱乐左列表</li>
<li>娱乐左列表</li>
<li>娱乐左列表</li>
</ul>
</div>
<div class=\"list middle\">
<ul>
<li>娱乐中列表</li>
<li>娱乐中列表</li>
<li>娱乐中列表</li>
<li>娱乐中列表</li>
</ul>
</div>
<div class=\"list right\">
<ul>
<li>娱乐右列表</li>
<li>娱乐右列表</li>
<li>娱乐右列表</li>
<li>娱乐右列表</li>
</ul>
</div>
</li>
<li>
<div class=\"list left\">
<ul>
<li>体育左列表</li>
<li>体育左列表</li>
<li>体育左列表</li>
<li>体育左列表</li>
</ul>
</div>
<div class=\"list middle\">
<ul>
<li>体育中列表</li>
<li>体育中列表</li>
<li>体育中列表</li>
<li>体育中列表</li>
</ul>
</div>
<div class=\"list right\">
<ul>
<li>体育右列表</li>
<li>体育右列表</li>
<li>体育右列表</li>
<li>体育右列表</li>
</ul>
</div>
</li>
</ul>
</div>
</div>
<div class=\"box qqTab\">
<h4>支持高度自适应（auto）设置</h4>
<div id=\"qqTabAuto\">
<div class=\"loading\"><span>请稍候...</span></div>
<!--载入画面-->
<ul class=\"btn\">
<!--标题-->
<li>新闻</li>
<li>财经</li>
<li>娱乐</li>
<li>体育</li>
</ul>
<ul class=\"cont\">
<!--内容-->
<li>
<div class=\"list left\">
<ul>
<li>新闻左列表</li>
<li>新闻左列表</li>
<li>新闻左列表</li>
<li>新闻左列表</li>
</ul>
</div>
<div class=\"list middle\">
<ul>
<li>新闻中列表</li>
<li>新闻中列表</li>
<li>新闻中列表</li>
<li>新闻中列表</li>
<li>这是测试高度自适应</li>
<li>这是测试高度自适应</li>
<li>这是测试高度自适应</li>
<li>这是测试高度自适应</li>
</ul>
</div>
<div class=\"list right\">
<ul>
<li>新闻右列表</li>
<li>新闻右列表</li>
<li>新闻右列表</li>
<li>新闻右列表</li>
</ul>
</div>
</li>
<li>
<div class=\"list left\">
<ul>
<li>财经左列表</li>
<li>财经左列表</li>
<li>财经左列表</li>
<li>财经左列表</li>
</ul>
</div>
<div class=\"list middle\">
<ul>
<li>财经中列表</li>
<li>财经中列表</li>
<li>财经中列表</li>
<li>财经中列表</li>
</ul>
</div>
<div class=\"list right\">
<ul>
<li>财经右列表</li>
<li>财经右列表</li>
<li>财经右列表</li>
<li>财经右列表</li>
</ul>
</div>
</li>
<li>
<div class=\"list left\">
<ul>
<li>娱乐左列表</li>
<li>娱乐左列表</li>
<li>娱乐左列表</li>
<li>娱乐左列表</li>
</ul>
</div>
<div class=\"list middle\">
<ul>
<li>娱乐中列表</li>
<li>娱乐中列表</li>
<li>娱乐中列表</li>
<li>娱乐中列表</li>
</ul>
</div>
<div class=\"list right\">
<ul>
<li>娱乐右列表</li>
<li>娱乐右列表</li>
<li>娱乐右列表</li>
<li>娱乐右列表</li>
</ul>
</div>
</li>
<li>
<div class=\"list left\">
<ul>
<li>体育左列表</li>
<li>体育左列表</li>
<li>体育左列表</li>
<li>体育左列表</li>
</ul>
</div>
<div class=\"list middle\">
<ul>
<li>体育中列表</li>
<li>体育中列表</li>
<li>体育中列表</li>
<li>体育中列表</li>
</ul>
</div>
<div class=\"list right\">
<ul>
<li>体育右列表</li>
<li>体育右列表</li>
<li>体育右列表</li>
<li>体育右列表</li>
</ul>
</div>
</li>
</ul>
</div>
</div>
</body>
</html>
希望本文所述对大家的JavaScript程序设计有所帮助。
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