jQuery pager.js 插件动态分页功能实例分析

本文实例讲述了jQuery pager.js 插件动态分页功能。分享给大家供大家参考，具体如下：

pager.js 代码

function Page(opt){
   var set = $.extend({num:null,startnum:1,elem:null,callback:null},opt||{});
   if(set.startnum>set.num||set.startnum<1){
     set.startnum = 1;
   }
   var n = 0,htm = '';
   var clickpages = {
     elem:set.elem,
     num:set.num,
     callback:set.callback,
     init:function(){
      this.elem.next('div.pageJump').children('.button').unbind('click')
      this.JumpPages();
      this.elem.children('li').click(function () {
 var txt = $(this).children('a').text();
 var page = '', ele = null;
 var page1 = parseInt(clickpages.elem.children('li.active').attr('page'));
 if (isNaN(parseInt(txt))) {
  switch (txt) {
    case '下一页':
     if (page1 == clickpages.num) {
return;
     }
     if (page1 >= (clickpages.num - 2) || clickpages.num <= 6 || page1 < 3) {
ele = clickpages.elem.children('li.active').next();
     } else {
clickpages.newPages('next', page1 + 1);
ele = clickpages.elem.children('li.active');
     }
     break;
    case '上一页':
     if (page1 == '1') {
return;
     }
     if (page1 >= (clickpages.num - 1) || page1 <= 3 || clickpages.num <= 6) {
ele = clickpages.elem.children('li.active').prev();
     } else {
clickpages.newPages('prev', page1 - 1);
ele = clickpages.elem.children('li.active');
     }
     break;
    case '首页':
     if (page1 == '1') {
return;
     }
     if (clickpages.num > 6) {
clickpages.newPages('首页', 1);
     }
     ele = clickpages.elem.children('li[page=1]');
     break;
    case '尾页':
     if (page1 == clickpages.num) {
return;
     }
     if (clickpages.num > 6) {
clickpages.newPages('尾页', clickpages.num);
     }
     ele = clickpages.elem.children('li[page=' + clickpages.num + ']');
     break;
    case '...':
     return;
  }
 } else {
 //   if ((parseInt(txt) >= (clickpages.num - 3) || parseInt(txt) <= 3) && clickpages.num > 6) {
 //    clickpages.newPages('jump', parseInt(txt));
 //   }
 //   ele = $(this);
 // }
 // page = clickpages.actPages(ele);
 // if (page != '' && page != page1) {
 //   if (clickpages.callback){
 //    clickpages.callback(parseInt(page));
 //   }
 var i = parseInt(txt);
 if(isNaN(i)||(i<=0)||i>clickpages.num){
  return;
 }else if(clickpages.num>6){
  clickpages.newPages('jump',i);
 }else{
  var ele = clickpages.elem.children('li[page='+i+']');
  clickpages.actPages(ele);
  if (clickpages.callback){
    clickpages.callback(i);
  }
  return;
 }
 if (clickpages.callback){
  clickpages.callback(i);
 }
 }
      });
     },
     //active
     actPages:function (ele) {
      ele.addClass('active').siblings().removeClass('active');
      return clickpages.elem.children('li.active').text();
     },
     JumpPages:function () {
      this.elem.next('div.pageJump').children('.button').click(function(){
 var i = parseInt($(this).siblings('input').val());
 if(isNaN(i)||(i<=0)||i>clickpages.num){
  return;
 }else if(clickpages.num>6){
  clickpages.newPages('jump',i);
 }else{
  var ele = clickpages.elem.children('li[page='+i+']');
  clickpages.actPages(ele);
  if (clickpages.callback){
    clickpages.callback(i);
  }
  return;
 }
 if (clickpages.callback){
  clickpages.callback(i);
 }
      })
     },
     //newpages
     newPages:function (type, i) {
      var html = "",htmlLeft="",htmlRight="",htmlC="";
      var HL = '
...
';
      html = '
首页
'
      for (var n = 0;n<5;n++){
 htmlC += '
'+(i+n-1)+'
';
 htmlLeft += '
'+(n+2)+'
';
 htmlRight += '
'+(set.num+n-5)+'
';
      }
      switch (type) {
 case "next":
  if(i<=4){
    html+='
1
'+htmlLeft+HL+'
'+set.num+'
';
  }else if(i>=(set.num-3)){
    html+='
1
'+HL+htmlRight+'
'+set.num+'
';
  }else{
    html += '
1
'+HL+htmlC+HL+'
'+set.num+'
';
  }
  break;
 case "prev":
  if(i<=4){
    html+='
1
'+htmlLeft+HL+'
'+set.num+'
';
  }else if(i>=(set.num-3)){
    html+='
1
'+HL+htmlRight+'
'+set.num+'
';
  }else{
    html += '
1
'+HL+htmlC+HL+'
'+set.num+'
';
  }
  break;
 case "首页" :
  html+='
1
'+htmlLeft+HL+'
'+set.num+'
';
  break;
 case "尾页" :
  html+='
1
'+HL+htmlRight+'
'+set.num+'
';
  break;
 case "jump" :
  if(i<=4){
    if(i==1){
     html+='
1
'+htmlLeft+HL+'
'+set.num+'
';
    }else{
     html+='
1
'+htmlLeft+HL+'
'+set.num+'
';
    }
  }else if((i>=set.num-3)&&(set.num>=7)){
    if(i==set.num){
     html+='
1
'+HL+htmlRight+'
'+set.num+'
';
    }else{
     html+='
1
'+HL+htmlRight+'
'+set.num+'
';
    }
  }else{
    html += '
1
'+HL+htmlC+HL+'
'+set.num+'
';
  }
      }
      html += '
尾页
';
      if (this.num > 5 || this.num < 3) {
 set.elem.html(html);
 clickpages.init({num:set.num,elem:set.elem,callback:set.callback});
      }
     }
   }
   if(set.num<=1){
     $(".pagination").html('');
     return;
   }else if(parseInt(set.num)<=6){
     n = parseInt(set.num);
     var html='
首页
';
     for(var i=1;i<=n;i++){
      if(i==set.startnum){
 html+='
'+i+'
';
      }else{
 html+='
'+i+'
';
      }
     }
     html +='
尾页
';
     set.elem.html(html);
     clickpages.init();
   }else{
     clickpages.newPages("jump",set.startnum)
   }
}

上面是 pager.js部分

html部分

  

  
  
   前往
   
   页
   GO
  

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