jQuery_pager.js分页

Posted 2020-08-14 郑叶叶

在做前端项目中，总是需要自己手写类似于这样的分页效果：

这就需要使用jQuery.pager.js文件，其使用方法为：在html中引入三个文件，分别为：

<link rel="stylesheet" type="text/css" href="../Pager.css"/>
<script src="../jquery.min.js"></script>
<script type="text/javascript" src="../jquery.pager.js"></script>

特此附上Pager.css文件：

#pager ul.pages{
    display:block;
    border:none;
    text-transform:uppercase;
    font-size:12px;margin:10px 0 50px;padding:0;
}
#pager ul.pages li{
    /*list-style:none;*/
    /*float:left;*/
    /*border:1px solid #ccc;*/
    /*text-decoration:none;*/
   margin:0px 5px 0 0;
    border: 1px solid #e3e3e3;
    color: #333;
    display: inline-block;
    height: 22px;
    line-height: 22px;
    padding: 0 10px;
    text-align: center;
    _zoom:1;*display:inline;
}
#pager ul.pages li.page-number:hover{
    /*border:1px solid #003f7e; */
    background:#f1f1f1; color:#000; text-decoration:none
}
#pager ul.pages li.pgEmpty{
    border:1px solid #eee;
    color:#eee;
}
#pager ul.pages li.pgCurrent,#pager ul.pages li.pgCurrent:hover{
    /*border:1px solid #3c90d9;*/
    /*color: #fff;*/
    /*font-weight:700;*/
    /*/!*background-color:#eee;*!/*/
    /*background: #3c90d9 none repeat scroll 0 0;*/
    background: #007cdb none repeat scroll 0 0;
    border: 1px solid #007cdb;
    color: #fff;
    /*display: inline-block;*/
    height: 22px;
    line-height: 22px;
    padding: 0 10px;
    text-align: center;
}
/*#pager ul.pages li {*/
    /*background: rgba(0, 0, 0, 0) url("../images/web/pages.png") no-repeat scroll 0 5px;*/
/*}*/
#pager{
    margin-left: 290px;
    margin-top: 15px;
    padding: 14px 0 25px;
    text-align: center;
    height: 35px;
}
.pages li.total {
    border: 1px solid #e3e3e3;
    color: #333;
}
#pager ul.pages{
    display:block;
    border:none;
    text-transform:uppercase;
    font-size:12px;margin:10px 0 50px;padding:0;
}
#pager ul.pages:hover{ background: none;}
#pager ul.pages li{
    /*list-style:none;*/
    /*float:left;*/
    /*border:1px solid #ccc;*/
    /*text-decoration:none;*/
    margin:0px 5px 0 0;
    border: 1px solid #e3e3e3;
    color: #333;
    display: inline-block;
    height: 22px;
    line-height: 22px;
    padding: 0 10px;
    text-align: center;
}
#pager ul.pages li.page-number:hover{
    /*border:1px solid #003f7e; */
    background:#f1f1f1; color:#000; text-decoration:none
}
#pager ul.pages li.pgEmpty{
    border:1px solid #eee;
    color:#eee;
}
#pager ul.pages li.pgCurrent,#pager ul.pages li.pgCurrent:hover{
    /*border:1px solid #3c90d9;*/
    /*color: #fff;*/
    /*font-weight:700;*/
    /*/!*background-color:#eee;*!/*/
    /*background: #3c90d9 none repeat scroll 0 0;*/
    background: #007cdb none repeat scroll 0 0;
    border: 1px solid #007cdb;
    color: #fff;
    display: inline-block;
    height: 22px;
    line-height: 22px;
    padding: 0 10px;
    text-align: center;
}
#pager{
    /*margin-left: 290px;*/
    margin-top: 25px;
    padding: 14px 0 25px;
    text-align: center;
}
/*20160226添加*/
.pages li.total{cursor:auto}

jquery.pager.js文件：

/*
 * jQuery pager plugin
 * Version 1.0 (12/22/2008)
 * @requires jQuery v1.2.6 or later
 *
 * Example at: http://jonpauldavies.github.com/JQuery/Pager/PagerDemo.html
 *
 * Copyright (c) 2008-2009 Jon Paul Davies
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 *
 * Read the related blog post and contact the author at http://www.j-dee.com/2008/12/22/jquery-pager-plugin/
 *
 * This version is far from perfect and doesn\'t manage it\'s own state, therefore contributions are more than welcome!
 *
 * Usage: .pager({ pagenumber: 1, pagecount: 15, buttonClickCallback: PagerClickTest });
 *
 * Where pagenumber is the visible page number
 *       pagecount is the total number of pages to display
 *       buttonClickCallback is the method to fire when a pager button is clicked.
 *
 * buttonClickCallback signiture is PagerClickTest = function(pageclickednumber)
 * Where pageclickednumber is the number of the page clicked in the control.
 *
 * The included Pager.CSS file is a dependancy but can obviously tweaked to your wishes
 * Tested in IE6 IE7 Firefox & Safari. Any browser strangeness, please report.
 */
(function($) {

    $.fn.pager = function(options) {

        var opts = $.extend({}, $.fn.pager.defaults, options);

        return this.each(function() {

            // empty out the destination element and then render out the pager with the supplied options
            $(this).empty().append(renderpager(parseInt(options.pagenumber), parseInt(options.pagecount), options.buttonClickCallback));

            // specify correct cursor activity
            $(\'.pages li\').mouseover(function() { document.body.style.cursor = "pointer"; }).mouseout(function() { document.body.style.cursor = "auto"; });
        });
    };

    // render and return the pager with the supplied options
    function renderpager(pagenumber, pagecount, buttonClickCallback) {
        // setup $pager to hold render
        var $pager = $(\'<ul class="pages"></ul>\');

        // add in the previous and next buttons
        //$pager.append(renderButton(\'first\', pagenumber, pagecount, buttonClickCallback)).append(renderButton(\'prev\', pagenumber, pagecount, buttonClickCallback));
        if(pagecount>1&&pagenumber!=1){
            $pager.append(renderButton(\'上一页\', pagenumber, pagecount, buttonClickCallback));
        }
        // pager currently only handles 10 viewable pages ( could be easily parameterized, maybe in next version ) so handle edge cases
        var startPoint = 1;
        var endPoint = 5;
        if (pagenumber > 4 && pagenumber<pagecount-1) {
            startPoint = pagenumber - 2;
            endPoint = pagenumber + 2;
        }
        if(pagenumber>pagecount-2&& pagenumber<pagecount+1){
            startPoint = pagecount - 4;
            endPoint = pagecount;
        }
        if (endPoint > pagecount) {
            startPoint = pagecount - 8;
            endPoint = pagecount;
        }

        if (startPoint < 1) {
            startPoint = 1;
        }

        // loop thru visible pages and render buttons
        for (var page = startPoint; page <= endPoint; page++) {
            var currentButton = $(\'<li class="page-number">\' + (page) + \'</li>\');
            page == pagenumber ? currentButton.addClass(\'pgCurrent\') : currentButton.click(function() { buttonClickCallback(this.firstChild.data); });
            currentButton.appendTo($pager);
        }
        // render in the next and last buttons before returning the whole rendered control back.
        //$pager.append(renderButton(\'next\', pagenumber, pagecount, buttonClickCallback)).append(renderButton(\'last\', pagenumber, pagecount, buttonClickCallback));
        var allPage = $(\'<li class="total">\' + (pagenumber)+("/")+(pagecount)+"页" + \'</li>\');
        allPage.appendTo($pager);
        if(pagecount>1&&pagenumber!=pagecount){
            $pager.append(renderButton(\'下一页\', pagenumber, pagecount, buttonClickCallback));
        }
        return $pager;
    }

    // renders and returns a \'specialized\' button, ie \'next\', \'previous\' etc. rather than a page number button
    function renderButton(buttonLabel, pagenumber, pagecount, buttonClickCallback) {
        var $Button = $(\'<li class="pgNext">\' + buttonLabel + \'</li>\');
        var destPage = 1;
        // work out destination page for required button type
        switch (buttonLabel) {
            case "first":
                destPage = 1;
                break;
            case "上一页":
                destPage = pagenumber - 1;
                break;
            case "下一页":
                destPage = pagenumber + 1;
                break;
            case "last":
                destPage = pagecount;
                break;
        }
        // disable and \'grey\' out buttons if not needed.
        if (buttonLabel == "first" || buttonLabel == "上一页") {
            pagenumber <= 1 ? $Button.addClass(\'pgEmpty\') : $Button.click(function() { buttonClickCallback(destPage); });
        }
        else {
            pagenumber >= pagecount ? $Button.addClass(\'pgEmpty\') : $Button.click(function() { buttonClickCallback(destPage); });
        }
        return $Button;
    }

    // pager defaults. hardly worth bothering with in this case but used as placeholder for expansion in the next version
    $.fn.pager.defaults = {
        pagenumber: 1,
        pagecount: 1
    };

})(jQuery);

直接将这两个文件保存在自己的项目之中使用即可。

而在HTML中：

<h1 id="result">Click the pager below.</h1>
<div id="pager"></div>

    <script type="text/javascript" language="javascript">
         //pagenumber 为当前页码
         //pagecount 为显示页数
         //PageClick 为回调函数
         //pageclickednumber 为点击页码
        $(document).ready(function() {
            $("#pager").pager({ pagenumber: 1, pagecount: 10, buttonClickCallback: PageClick });
        });

        PageClick = function(pageclickednumber) {
            $("#pager").pager({ pagenumber: pageclickednumber, pagecount: 10, buttonClickCallback: PageClick });
            $("#result").html("Clicked Page " + pageclickednumber);
        }
       
    </script>

结果：

这样，简单的分页功能就完成了。