你的位置:首页 > Java教程

[Java教程]js删除dom节点时候索引出错问题


我们知道删除一个dom节点的时候索引就会发生了改变,甚至是错误,就算jq的ecah也无能为力,所以我们只能自己写个功能了

 

直接上代码把,不多说

<!DOCTYPE html> <html> <head>  <title>fancyBox - Fancy jQuery Lightbox Alternative | Demonstration</title>  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />

 <!-- Add jQuery library -->  <script type="text/javascript" src="../lib/jquery-1.10.1.min.js"></script>

 <!-- Add mousewheel plugin (this is optional) --> <!-- <script type="text/javascript" src="../lib/jquery.mousewheel-3.0.6.pack.js"></script> -->  <!-- Add fancyBox main JS and CSS files -->  <script type="text/javascript" src="../source/jquery.fancybox.js?v=2.1.5"></script>  <link rel="stylesheet" type="text/css" href="../source/jquery.fancybox.css?v=2.1.5" media="screen" />

 <!-- Add Button helper (this is optional) -->  <link rel="stylesheet" type="text/css" href="../source/helpers/jquery.fancybox-buttons.css?v=1.0.5" /> <!-- <script type="text/javascript" src="../source/helpers/jquery.fancybox-buttons.js?v=1.0.5"></script> -->  <!-- Add Thumbnail helper (this is optional) -->  <link rel="stylesheet" type="text/css" href="../source/helpers/jquery.fancybox-thumbs.css?v=1.0.7" /> <!-- <script type="text/javascript" src="../source/helpers/jquery.fancybox-thumbs.js?v=1.0.7"></script> -->  <!-- Add Media helper (this is optional) --> <!-- <script type="text/javascript" src="../source/helpers/jquery.fancybox-media.js?v=1.0.6"></script> --> </head> <style> *{  margin:0;  padding:0;}  li{ list-style:none;}  #div{   margin:20px;    height:auto;   width:auto;   overflow:hidden;      }  #div   div {    height:30px;     width:30px;     overflow:hidden;      position:absolute;     right:0px;     top:0px;      z-index:9;    }    #div .closs  {     position:absolute;     left:-4px;     top:-2px;      }      #ul1{    height:auto;    width:auto;     overflow:hidden;     background:#ccc;    }     #div li{      position:relative;      height:100px;      width:100px;      float:left;      margin:5px;      }      #div li > img{         height:100px;            width:100px;      position:absolute;      left:0px;      top:0px;       }       #div li span{        position:absolute;        left:0px;        top:0px;        opacity:0;         filter:alpha(opacity=0);         z-index:3;         height:100px;               width:100px;      background:red;         }      #makImg{        display:none;       }  </style>  <body>  <input  type="button" id="but" value="添加图片"/>  <div id="div">         <!--ul li img -->       <ul id="ul1">           <!--     <li>                                <div   >                       <img  class = "closs"    src="../source/fancybox_sprite.png" />                   </div>                    <img src="1_b.jpg" />                    <span class='makClick'>1</span>               </li>                                          <li>                                              <div   >                       <img class = "closs"  src="../source/fancybox_sprite.png" />                   </div>                    <img src="1_b.jpg" />                    <span class='makClick'> </span>               </li>                                          <li>                                               <div   >                       <img  class = "closs"  src="../source/fancybox_sprite.png" />                   </div>                    <img src="1_b.jpg" />                    <span class='makClick'> </span>               </li>                                          <li>                                              <div   >                       <img  class = "closs"    src="../source/fancybox_sprite.png" />                   </div>                    <img src="1_b.jpg" />                    <span class='makClick'> </span>               </li>-->           </ul>  </div>        <div id='makImg'>   <!--<a data-fancybox-group="button" href="1_b.jpg"><img src="1_s.jpg" alt="" /></a>

  <a data-fancybox-group="button" href="2_b.jpg"><img src="2_s.jpg" alt="" /></a>

  <a data-fancybox-group="button" href="3_b.jpg"><img src="3_s.jpg" alt="" /></a>

  <a data-fancybox-group="button" href="4_b.jpg"><img src="4_s.jpg" alt="" /></a>-->  </div>    <script> $(document).ready(function() {       $(".fancybox-effects-a").fancybox({     helpers: {      title : {       type : 'outside'      },      overlay : {       speedOut : 0      }     }    });    });         var Odiv = document.getElementById('div'),          Obut =  document.getElementById('but');        function getByClass(o_parentId, class_name){            var  obj_arr = [ ],               obj_s = o_parentId.getElementsByTagName("*");         for(var i = 0 , len = obj_s.length; i < len; i++){               if(obj_s[i].className == class_name){                 obj_arr.push(obj_s[i]);            }         }             return  obj_arr;     }              var  evnet_index = {                       setIndex : function(obj_arr){             for(var i = 0, len = obj_arr.length; i < len ;i++ ){                                obj_arr[i].index = i;                           }           },           getIndex : function(o_parent, event_type, class_name , fn){                  var  target_obj = new Object( );             o_parent['on'+event_type]= function( e ){                     var ev = e || window.event,                                                   target = ev.target || ev.srcElement;                  if(target.className == class_name){                         fn && fn({obj : target , index : target.index});                     }               }             }               }          var add_remove_child = {          RemoveChild : function (obj,index){                 var    nwe_obj =  obj[0];                      nwe_obj.parentNode.removeChild(obj[index]);           },          AddMaxImg : function(src){                             var a_obj = document.createElement('a');                 a_obj.className = "fancybox-effects-a";              a_obj["data-fancybox-group"] = 'button';              a_obj.href = src;                          var img_obj = document.createElement('img');                 img_obj.src = src;               a_obj.appendChild(img_obj);            return  a_obj;                              },          AddUl :  function  ( ){            if(Odiv.getElementsByTagName('ul').length>=1){              return  Odiv.getElementsByTagName('ul')[0];             }else{            var       Oul = document.createElement('ul');               Odiv.appendChild(Oul);             return Oul;             }                       },      AddChild :  function  (src){          var     Oli = document.createElement('li');           Oli_div = document.createElement('div');                     Oli.appendChild(Oli_div);                var    Oli_div_img  = document.createElement('img');                   Oli_div_img.className = 'closs';             Oli_div_img.src = '../source/fancybox_sprite.png';                         Oli_div.appendChild(Oli_div_img);                    var    Oli_img   = document.createElement('img');             Oli_img.src = src;             Oli.appendChild(Oli_img);                    var    Oli_span = document.createElement('span');                   Oli_span.style.zIndex = 3;             Oli_span.className = 'makClick';             Oli.appendChild(Oli_span);                       return  Oli;       }          };        var img_index = 0;     Obut.onclick = function( ){          img_index = (img_index <  5)?(img_index+1):1;         document.getElementById('makImg').appendChild(add_remove_child.AddMaxImg(img_index+'_b.jpg'));           add_remove_child.AddUl( ).appendChild(add_remove_child.AddChild( img_index+'_b.jpg'));        evnet_index.setIndex(getByClass(Odiv,  'makClick'));        evnet_index.setIndex(getByClass(Odiv, 'closs'));     }           //事件所有的子对象只能绑定一个父对象,不能多个类的子对象绑定相同的父对象。      evnet_index.setIndex(getByClass(Odiv,  'makClick'));        evnet_index.getIndex(document.getElementById('div'), 'click' ,'makClick' , function(obj){              ;              alert(obj.index);        $('.fancybox-effects-a').eq(obj.index).trigger('click');       });               //事件所有的子对象只能绑定一个父对象,不能多个类的子对象绑定相同的父对象。    evnet_index.setIndex(getByClass(Odiv, 'closs'));      evnet_index.getIndex(document.getElementById('ul1'), 'click' ,'closs' , function(obj){          img_index--;         add_remove_child.RemoveChild(document.getElementById('makImg').getElementsByTagName('a'),obj.index);          add_remove_child.RemoveChild(document.getElementById('ul1').getElementsByTagName('li'),obj.index);                  evnet_index.setIndex(getByClass(Odiv,  'makClick'));            evnet_index.setIndex(getByClass(Odiv, 'closs'));          alert(obj.index);              });             </script> </body> </html>