Js标签页浏览控件推介：DOMTab

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Js标签页浏览控件推介：DOMTab

作者:admin 发布时间:2010-10-20 6:10:56 发布人: admin

</style>
<script type="text/javascript">
/*
DOMtab Version 3.1415927
Updated March the First 2006
written by Christian Heilmann
*/
domtab={
tabClass:'domtab', // class to trigger tabbing
listClass:'domtabs', // class of the menus
activeClass:'active', // class of current link
contentElements:'div', // elements to loop through
backToLinks:/#top/, // pattern to check "back to top" links
printID:'domtabprintview', // id of the print all link
showAllLinkText:'show all content', // text for the print all link
prevNextIndicator:'doprevnext', // class to trigger prev and next links
prevNextClass:'prevnext', // class of the prev and next list
prevLabel:'上一项', // HTML content of the prev link
nextLabel:'下一项', // HTML content of the next link
prevClass:'prev', // class for the prev link
nextClass:'next', // class for the next link
init:function(){
var temp;
if(!document.getElementById || !document.createTextNode){return;}
var tempelm=document.getElementsByTagName('div');
for(var i=0;i<tempelm.length;i++){
if(!domtab.cssjs('check',tempelm[i],domtab.tabClass)){continue;}
domtab.initTabMenu(tempelm[i]);
domtab.removeBackLinks(tempelm[i]);
if(domtab.cssjs('check',tempelm[i],domtab.prevNextIndicator)){
domtab.addPrevNext(tempelm[i]);
}
domtab.checkURL();
}
if(document.getElementById(domtab.printID)
&& !document.getElementById(domtab.printID).getElementsByTagName('a')[0]){
var newlink=document.createElement('a');
newlink.setAttribute('href','#');
domtab.addEvent(newlink,'click',domtab.showAll,false);
newlink.onclick=function(){return false;} // safari hack
newlink.appendChild(document.createTextNode(domtab.showAllLinkText));
document.getElementById(domtab.printID).appendChild(newlink);
}
},
checkURL:function(){
var id;
var loc=window.location.toString();
loc=/#/.test(loc)?loc.match(/#(\w.+)/)[1]:'';
if(loc==''){return;}
var elm=document.getElementById(loc);
if(!elm){return;}
var parentMenu=elm.parentNode.parentNode.parentNode;
parentMenu.currentSection=loc;
parentMenu.getElementsByTagName(domtab.contentElements)[0].style.display='none';
domtab.cssjs('remove',parentMenu.getElementsByTagName('a')[0].parentNode,domtab.activeClass);
var links=parentMenu.getElementsByTagName('a');
for(i=0;i<links.length;i++){
if(!links[i].getAttribute('href')){continue;}
if(!/#/.test(links[i].getAttribute('href').toString())){continue;}
id=links[i].href.match(/#(\w.+)/)[1];
if(id==loc){
var cur=links[i].parentNode.parentNode;
domtab.cssjs('add',links[i].parentNode,domtab.activeClass);
break;
}
}
domtab.changeTab(elm,1);
elm.focus();
cur.currentLink=links[i];
cur.currentSection=loc;
},
showAll:function(e){
document.getElementById(domtab.printID).parentNode.removeChild(document.getElementById(domtab.printID));
var tempelm=document.getElementsByTagName('div');
for(var i=0;i<tempelm.length;i++){
if(!domtab.cssjs('check',tempelm[i],domtab.tabClass)){continue;}
var sec=tempelm[i].getElementsByTagName(domtab.contentElements);
for(var j=0;j<sec.length;j++){
sec[j].style.display='block';
}
}
var tempelm=document.getElementsByTagName('ul');
for(i=0;i<tempelm.length;i++){
if(!domtab.cssjs('check',tempelm[i],domtab.prevNextClass)){continue;}
tempelm[i].parentNode.removeChild(tempelm[i]);
i--;
}
domtab.cancelClick(e);
},
addPrevNext:function(menu){
var temp;
var sections=menu.getElementsByTagName(domtab.contentElements);
for(var i=0;i<sections.length;i++){
temp=domtab.createPrevNext();
if(i==0){
temp.removeChild(temp.getElementsByTagName('li')[0]);
}
if(i==sections.length-1){
temp.removeChild(temp.getElementsByTagName('li')[1]);
}
temp.i=i; // h4xx0r!
temp.menu=menu;
sections[i].appendChild(temp);
}
},
removeBackLinks:function(menu){
var links=menu.getElementsByTagName('a');
for(var i=0;i<links.length;i++){
if(!domtab.backToLinks.test(links[i].href)){continue;}
links[i].parentNode.removeChild(links[i]);
i--;
}
},
initTabMenu:function(menu){
var id;
var lists=menu.getElementsByTagName('ul');
for(var i=0;i<lists.length;i++){
if(domtab.cssjs('check',lists[i],domtab.listClass)){
var thismenu=lists[i];
break;
}
}
if(!thismenu){return;}
thismenu.currentSection='';
thismenu.currentLink='';
var links=thismenu.getElementsByTagName('a');
for(i=0;i<links.length;i++){
if(!/#/.test(links[i].getAttribute('href').toString())){continue;}
id=links[i].href.match(/#(\w.+)/)[1];
if(document.getElementById(id)){
domtab.addEvent(links[i],'click',domtab.showTab,false);
links[i].onclick=function(){return false;} // safari hack
domtab.changeTab(document.getElementById(id),0);
}
}
id=links[0].href.match(/#(\w.+)/)[1];
if(document.getElementById(id)){
domtab.changeTab(document.getElementById(id),1);
thismenu.currentSection=id;
thismenu.currentLink=links[0];
domtab.cssjs('add',links[0].parentNode,domtab.activeClass);
}
},
createPrevNext:function(){
// this would be so much easier with innerHTML, darn you standards fetish!
var temp=document.createElement('ul');
temp.className=domtab.prevNextClass;
temp.appendChild(document.createElement('li'));
temp.getElementsByTagName('li')[0].appendChild(document.createElement('a'));
temp.getElementsByTagName('a')[0].setAttribute('href','#');
temp.getElementsByTagName('a')[0].innerHTML=domtab.prevLabel;
temp.getElementsByTagName('li')[0].className=domtab.prevClass;
temp.appendChild(document.createElement('li'));
temp.getElementsByTagName('li')[1].appendChild(document.createElement('a'));
temp.getElementsByTagName('a')[1].setAttribute('href','#');
temp.getElementsByTagName('a')[1].innerHTML=domtab.nextLabel;
temp.getElementsByTagName('li')[1].className=domtab.nextClass;
domtab.addEvent(temp.getElementsByTagName('a')[0],'click',domtab.navTabs,false);
domtab.addEvent(temp.getElementsByTagName('a')[1],'click',domtab.navTabs,false);
// safari fix
temp.getElementsByTagName('a')[0].onclick=function(){return false;}
temp.getElementsByTagName('a')[1].onclick=function(){return false;}
return temp;
},
navTabs:function(e){
var li=domtab.getTarget(e);
var menu=li.parentNode.parentNode.menu;
var count=li.parentNode.parentNode.i;
var section=menu.getElementsByTagName(domtab.contentElements);
var links=menu.getElementsByTagName('a');
var othercount=(li.parentNode.className==domtab.prevClass)?count-1:count+1;
section[count].style.display='none';
domtab.cssjs('remove',links[count].parentNode,domtab.activeClass);
section[othercount].style.display='block';
domtab.cssjs('add',links[othercount].parentNode,domtab.activeClass);
var parent=links[count].parentNode.parentNode;
parent.currentLink=links[othercount];
parent.currentSection=links[othercount].href.match(/#(\w.+)/)[1];
domtab.cancelClick(e);
},
changeTab:function(elm,state){
do{
elm=elm.parentNode;
} while(elm.nodeName.toLowerCase()!=domtab.contentElements)
elm.style.display=state==0?'none':'block';
},
showTab:function(e){
var o=domtab.getTarget(e);
if(o.parentNode.parentNode.currentSection!=''){
domtab.changeTab(document.getElementById(o.parentNode.parentNode.currentSection),0);
domtab.cssjs('remove',o.parentNode.parentNode.currentLink.parentNode,domtab.activeClass);
}
var id=o.href.match(/#(\w.+)/)[1];
o.parentNode.parentNode.currentSection=id;
o.parentNode.parentNode.currentLink=o;
domtab.cssjs('add',o.parentNode,domtab.activeClass);
domtab.changeTab(document.getElementById(id),1);
document.getElementById(id).focus();
domtab.cancelClick(e);
},
/* helper methods */
getTarget:function(e){
var target = window.event ? window.event.srcElement : e ? e.target : null;
if (!target){return false;}
if (target.nodeName.toLowerCase() != 'a'){target = target.parentNode;}
return target;
},
cancelClick:function(e){
if (window.event){
window.event.cancelBubble = true;
window.event.returnValue = false;
return;
}
if (e){
e.stopPropagation();
e.preventDefault();
}
},
addEvent: function(elm, evType, fn, useCapture){
if (elm.addEventListener)
{
elm.addEventListener(evType, fn, useCapture);
return true;
} else if (elm.attachEvent) {
var r = elm.attachEvent('on' + evType, fn);
return r;
} else {
elm['on' + evType] = fn;
}
},
cssjs:function(a,o,c1,c2){
switch (a){
case 'swap':
o.className=!domtab.cssjs('check',o,c1)?o.className.replace(c2,c1):o.className.replace(c1,c2);
break;
case 'add':
if(!domtab.cssjs('check',o,c1)){o.className+=o.className?' '+c1:c1;}
break;
case 'remove':
var rep=o.className.match(' '+c1)?' '+c1:c1;
o.className=o.className.replace(rep,'');
break;
case 'check':
var found=false;
var temparray=o.className.split(' ');
for(var i=0;i<temparray.length;i++){
if(temparray[i]==c1){found=true;}
}
return found;
break;
}
}
}
domtab.addEvent(window, 'load', domtab.init, false);
</script>
<div id="warp">
<div class="domtab doprevnext">
<ul class="domtabs">
<li><a href="#tab1">菜单一</a></li>
<li><a href="#tab2">菜单二</a></li>
<li><a href="#tab3">菜单三</a></li>
<li><a href="#tab4">菜单四</a></li>
</ul>
<h3>代码整理：<a href="http://web.archive.org/web/20150530070621/http://www.jz123.cn/">站长家园</a></h3>

<div>
<h2><a name="tab1" id="tab1">菜单一</a></h2>
<p>内容或列表一</p>
<p><a href="#top">back to menu</a></p>
</div>

<div>
<h2><a name="tab2" id="tab2">菜单二</a></h2>
<p>内容或列表二</p>
<p><a href="#top">back to menu</a></p>
</div>

<div>
<h2><a name="tab3" id="tab3">菜单三</a></h2>
<p>内容或列表三</p>
<p><a href="#top">back to menu</a></p>
</div>

<div>
<h2><a name="tab4" id="tab4">菜单四</a></h2>
<p>内容或列表四</p>
<p><a href="#top">back to menu</a></p>
</div>
</div>
</div>

假如你问我：如何在越来越显得狭小的页面空间上容纳展示更多的内容？我会毫不犹豫告诉你——借助标签页（TAB）技术，TAB的优点就在于它允许在同一个地方显示多个不同的项目或内容。眼下，标签页有许多种不同的制作方法，本文介绍的是 Christian Heilmann 写的 DOMTab。希望能给大家提供思路和借鉴！

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