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  • JS 选项卡 标记当前

    早先写过一篇文章说 标记当前,和选项卡,几乎是目前所有常见网页效果应用的本质,其实 选项卡也是一种形式的标记当前,只不过这种标记是标记的显示状态罢了。
    今天我们用JS的方法写一下这些常用的函数,使它们使用起来更加方便:
    标记当前 function cur(ele,cls){} 接受两个函数 一个是ele 要标记的元素 或者 一个选择符,cls是标记的类名 一个css class 默认为"cur";
    选项卡 function tab(idtab,tagtab,idcon,tagcon,act,cls,idx){} 接受的参数比较多
    idtab:控制触发选项卡的容器
    idtag:控制触发选项卡的标签
    idcon:被控制的内容容器idtag:被控制的内容标签act: 触发方式 默认为 onclick
    cls:标记当前的css class 默认为 “cur”
    idx:默认显示第几项 默认为0 首项
    http://nba.titan24.com/focus/kikx/jstab.html  
    函数如下:

    function cur(ele,cls){
            
    return new cur.prototype.init(ele,cls);
        }
        cur.prototype
    ={
            init:
    function(ele,cls){
                
    this.idx=0;            
                
    this.mark= cls? " "+cls:"cur";
                
    this.ele= typeof ele=="object"? ele:document.getElementById(ele);            
                
    this.hdlr.call(this);    
                
    return this.idx;        
            },
            hdlr:
    function(){
                
    this.addCls();
                
    this.rmvCls();
            },
            addCls:
    function(){
                
    this.ele.className+=this.mark;
            },
            rmvCls:
    function(){
                
    var itm=this.ele;
                
    var prn=itm.parentNode;            
                
    var itms=prn.getElementsByTagName(itm.nodeName);
                
    for(i=0; i<itms.length; i++){
                    
    if(itms[i]!==itm){                    
                        itms[i].className
    =itms[i].className.replace(this.mark,"");
                    }
    else{
                        
    this.idx=i;
                    }                
                }            
            }        
        }
        cur.prototype.init.prototype
    =cur.prototype;
        
        
    function tab(idtab,tagtab,idcon,tagcon,act,cls,idx){
            
    return new tab.prototype.init(idtab,tagtab,idcon,tagcon,act,cls,idx);
            }
        tab.prototype
    ={
            init:
    function(idtab,tagtab,idcon,tagcon,act,cls,idx){
                
    this.tabid=document.getElementById(idtab);
                
    this.tabtag=this.tabid.getElementsByTagName(tagtab);
                
    this.conid=document.getElementById(idcon);
                
    this.contag=this.conid.getElementsByTagName(tagcon);
                
    this.cls=cls || "cur";
                
    this.act=act || "onclick";
                
    this.idx=idx || 0;            
                
    this.hdlr.call(this);
                },
            hdlr:
    function(){    
                
    this.change.call(this);            
                
    for(var i=0; i<this.tabtag.length; i++){    
                        
    var othis=this;
                        (
    function(){                        
                            
    var ii=i;
                            othis.tabtag[ii][othis.act]
    =function(){
                             if(!this.className.match(othis.cls)){
    othis.idx= ii;  othis.change.call(othis);    
    }
                        
                        }                    
                        })()
                    }
                },
            hide:
    function(){
                
    this.style.display="none";
                },
            show:
    function(){
                
    this.style.display="";
                },
            change:
    function(){
                cur(
    this.tabtag[this.idx]);
                
    for(var i=0; i<this.contag.length; i++){
                    
    if(i!==this.idx){
                        
    this.hide.call(this.contag[i]);
                        }
    else{
                        
    this.show.call(this.contag[i]);
                        }
                    }                
                }                
            }
            
        tab.prototype.init.prototype
    =tab.prototype;
        
    //使用范例:
        tab("comtab","li","comcon","div","onmouseover",0,2);
        tab(
    "comtab2","li","comcon2","div");
            
    //
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  • 原文地址:https://www.cnblogs.com/trance/p/1570886.html
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