基于jquery编写分页插件

2019-11-20 10:26:17

字体：大中小

来源：转载

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扩展JQuery很容易，作为一个练习，编写一个简单的分页插件，代码量不大，直接看代码好了：

$.fn.mypagination = function(totalProperty,opts){   opts = $.extend({     perPage:10,       callback:function(){     }   },opts||{});        return this.each(function(){     function numPages(){       return Math.ceil(totalProperty/opts.perPage);     }            function selectPage(page){       return function(){         currPage = page;         if (page<0) currPage = 0;         if (page>=numPages()) currPage = numPages()-1;         render();           $('img.page-wait',panel).attr('src','images/wait.gif');         opts.callback(currPage+1);         $('img.page-wait',panel).attr('src','images/nowait.gif');       }     }          function render(){         var html = '<table><tbody><tr>'          +'<td><a href="#"><img class="page-first"></a></td>'         +'<td><a href="#"><img class="page-prev"></a></td>'         +'<td><span>第<input type="text" class="page-num">页/共'+numPages()+'页</span></td>'         +'<td><a href="#"><img class="page-next"></a></td>'         +'<td><a href="#"><img class="page-last"></a></td>'         +'<td><img src="images/nowait.gif" class="page-wait"></td>'         +'<td><span style="padding-left:50px;">检索到'+totalProperty+'记录</span></td>'         +'</tr></tbody></table>';       var imgFirst = 'images/page-first-disabled.gif';       var imgPrev = 'images/page-prev-disabled.gif';       var imgNext = 'images/page-next-disabled.gif';       var imgLast = 'images/page-last-disabled.gif';       if (currPage > 0){         imgFirst = 'images/page-first.gif';         imgPrev = 'images/page-prev.gif';       }       if (currPage < numPages()-1){         imgNext = 'images/page-next.gif';         imgLast = 'images/page-last.gif';       }       panel.empty();       panel.append(html);       $('img.page-first',panel)         .bind('click',selectPage(0))         .attr('src',imgFirst);        $('img.page-prev',panel)         .bind('click',selectPage(currPage-1))         .attr('src',imgPrev);         $('img.page-next',panel)         .bind('click',selectPage(currPage+1))         .attr('src',imgNext);         $('img.page-last',panel)         .bind('click',selectPage(numPages()-1))         .attr('src',imgLast);       $('input.page-num',panel)         .val(currPage+1)         .change(function(){           selectPage($(this).val()-1)();         });     }          var currPage = 0;     var panel = $(this);     render();     }); }

下面测试一下：

<head>   <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />   <link rel="stylesheet" href="mypagination.css"/>   <script type="text/javascript" src="jquery-1.2.6.js"></script>   <script type="text/javascript" src="jquery.mypagination.js"></script>   <script>     $(document).ready(function(){       $('#mypage').mypagination(10112,{         callback:function(page){           alert(page);         }       });     });   </script> </head> <div id="mypage" class="mypagination"></div>

运行效果图如下：