/**
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* pagination.js 1.5.1
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* A jQuery plugin to provide simple yet fully customisable pagination.
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* @version 1.5.1
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* @author mss
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* @url https://github.com/Maxiaoxiang/jQuery-plugins
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*
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* @调用方法
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* $(selector).pagination(option, callback);
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* -此处callback是初始化调用，option里的callback是点击页码后调用
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*
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* -- example --
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* $(selector).pagination({
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* ... // 配置参数
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* callback: function(api) {
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* console.log('点击页码调用该回调'); //切换页码时执行一次回调
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* }
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* }, function(){
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* console.log('初始化'); //插件初始化时调用该方法，比如请求第一次接口来初始化分页配置
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* });
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*/
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;
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(function (factory) {
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if (typeof define === "function" && (define.amd || define.cmd) && !jQuery) {
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// AMD或CMD
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define(["jquery"], factory);
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} else if (typeof module === 'object' && module.exports) {
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// Node/CommonJS
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module.exports = function (root, jQuery) {
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if (jQuery === undefined) {
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if (typeof window !== 'undefined') {
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jQuery = require('jquery');
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} else {
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jQuery = require('jquery')(root);
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}
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}
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factory(jQuery);
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return jQuery;
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};
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} else {
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//Browser globals
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factory(jQuery);
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}
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}(function ($) {
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//配置参数
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var defaults = {
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totalData: 0, //数据总条数
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showData: 0, //每页显示的条数
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pageCount: 9, //总页数,默认为9
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current: 1, //当前第几页
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prevCls: 'prev', //上一页class
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nextCls: 'next', //下一页class
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prevContent: '<', //上一页内容
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nextContent: '>', //下一页内容
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activeCls: 'active', //当前页选中状态
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coping: false, //首页和尾页
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isHide: false, //当前页数为0页或者1页时不显示分页
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homePage: '', //首页节点内容
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endPage: '', //尾页节点内容
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keepShowPN: false, //是否一直显示上一页下一页
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mode: 'unfixed', //分页模式，unfixed：不固定页码数量，fixed：固定页码数量
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count: 4, //mode为unfixed时显示当前选中页前后页数，mode为fixed显示页码总数
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jump: false, //跳转到指定页数
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jumpIptCls: 'jump-ipt', //文本框内容
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jumpBtnCls: 'jump-btn', //跳转按钮
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jumpBtn: '跳转', //跳转按钮文本
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callback: function () {} //回调
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};
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var Pagination = function (element, options) {
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//全局变量
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var opts = options, //配置
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current, //当前页
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$document = $(document),
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$obj = $(element); //容器
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/**
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* 设置总页数
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* @param {int} page 页码
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* @return opts.pageCount 总页数配置
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*/
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this.setPageCount = function (page) {
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return opts.pageCount = page;
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};
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/**
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* 获取总页数
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* 如果配置了总条数和每页显示条数，将会自动计算总页数并略过总页数配置，反之
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* @return {int} 总页数
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*/
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this.getPageCount = function () {
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return opts.totalData && opts.showData ? Math.ceil(parseInt(opts.totalData) / opts.showData) : opts.pageCount;
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};
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/**
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* 获取当前页
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* @return {int} 当前页码
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*/
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this.getCurrent = function () {
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return current;
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};
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/**
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* 填充数据
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* @param {int} 页码
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*/
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this.filling = function (index) {
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var html = '';
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current = parseInt(index) || parseInt(opts.current); //当前页码
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var pageCount = this.getPageCount(); //获取的总页数
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switch (opts.mode) { //配置模式
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case 'fixed': //固定按钮模式
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html += '<a href="javascript:;" class="' + opts.prevCls + '">' + opts.prevContent + '</a>';
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if (opts.coping) {
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var home = opts.coping && opts.homePage ? opts.homePage : '1';
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html += '<a href="javascript:;" data-page="1">' + home + '</a>';
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}
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//原生
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/*var start = current > opts.count - 1 ? current + opts.count - 1 > pageCount ? current - (opts.count - (pageCount - current)) : current - 2 : 1;
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var end = current + opts.count - 1 > pageCount ? pageCount : start + opts.count;*/
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//仿写
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var start = current > opts.count - 1 ?
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current + opts.count - 1 > pageCount ?
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current - (opts.count - (pageCount - current)) === 0 ?
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1 :
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current - (opts.count - (pageCount - current)) :
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current - 2 :
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1;
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var end = current + opts.count - 1 > pageCount ?
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pageCount :
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start === current && current === 1 && pageCount === opts.count ?
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opts.count :
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start + opts.count;
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for (; start <= end; start++) {
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if (start != current) {
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html += '<a href="javascript:;" data-page="' + start + '">' + start + '</a>';
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} else {
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html += '<span class="' + opts.activeCls + '">' + start + '</span>';
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}
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}
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if (opts.coping) {
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var _end = opts.coping && opts.endPage ? opts.endPage : pageCount;
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html += '<a href="javascript:;" data-page="' + pageCount + '">' + _end + '</a>';
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}
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html += '<a href="javascript:;" class="' + opts.nextCls + '">' + opts.nextContent + '</a>';
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break;
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case 'unfixed': //不固定按钮模式
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if (opts.keepShowPN || current > 1) { //上一页
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html += '<a href="javascript:;" class="' + opts.prevCls + '">' + opts.prevContent + '</a>';
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} else {
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if (opts.keepShowPN == false) {
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$obj.find('.' + opts.prevCls) && $obj.find('.' + opts.prevCls).remove();
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}
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}
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if (current >= opts.count + 2 && current != 1 && pageCount != opts.count) {
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var home = opts.coping && opts.homePage ? opts.homePage : '1';
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html += opts.coping ? '<a href="javascript:;" data-page="1">' + home + '</a><span>...</span>' : '';
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}
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var start = (current - opts.count) <= 1 ? 1 : (current - opts.count);
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var end = (current + opts.count) >= pageCount ? pageCount : (current + opts.count);
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for (; start <= end; start++) {
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if (start <= pageCount && start >= 1) {
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if (start != current) {
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html += '<a href="javascript:;" data-page="' + start + '">' + start + '</a>';
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} else {
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html += '<span class="' + opts.activeCls + '">' + start + '</span>';
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}
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}
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}
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if (current + opts.count < pageCount && current >= 1 && pageCount > opts.count) {
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var end = opts.coping && opts.endPage ? opts.endPage : pageCount;
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html += opts.coping ? '<span>...</span><a href="javascript:;" data-page="' + pageCount + '">' + end + '</a>' : '';
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}
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if (opts.keepShowPN || current < pageCount) { //下一页
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html += '<a href="javascript:;" class="' + opts.nextCls + '">' + opts.nextContent + '</a>';
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} else {
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if (opts.keepShowPN == false) {
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$obj.find('.' + opts.nextCls) && $obj.find('.' + opts.nextCls).remove();
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}
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}
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break;
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case 'easy': //简单模式
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break;
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default:
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}
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html += opts.jump ? '<input type="text" class="' + opts.jumpIptCls + '"><a href="javascript:;" class="' + opts.jumpBtnCls + '">' + opts.jumpBtn + '</a>' : '';
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$obj.empty().html(html);
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};
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//绑定事件
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this.eventBind = function () {
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var that = this;
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var pageCount = that.getPageCount(); //总页数
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var index = 1;
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$obj.off().on('click', 'a', function () {
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if ($(this).hasClass(opts.nextCls)) {
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if ($obj.find('.' + opts.activeCls).text() >= pageCount) {
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$(this).addClass('disabled');
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return false;
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} else {
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index = parseInt($obj.find('.' + opts.activeCls).text()) + 1;
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}
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} else if ($(this).hasClass(opts.prevCls)) {
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if ($obj.find('.' + opts.activeCls).text() <= 1) {
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$(this).addClass('disabled');
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return false;
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} else {
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index = parseInt($obj.find('.' + opts.activeCls).text()) - 1;
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}
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} else if ($(this).hasClass(opts.jumpBtnCls)) {
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if ($obj.find('.' + opts.jumpIptCls).val() !== '') {
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index = parseInt($obj.find('.' + opts.jumpIptCls).val());
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} else {
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return;
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}
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} else {
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index = parseInt($(this).data('page'));
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}
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that.filling(index);
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typeof opts.callback === 'function' && opts.callback(that);
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});
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//输入跳转的页码
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$obj.on('input propertychange', '.' + opts.jumpIptCls, function () {
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var $this = $(this);
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var val = $this.val();
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var reg = /[^\d]/g;
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if (reg.test(val)) $this.val(val.replace(reg, ''));
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(parseInt(val) > pageCount) && $this.val(pageCount);
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if (parseInt(val) === 0) $this.val(1); //最小值为1
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});
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//回车跳转指定页码
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$document.keydown(function (e) {
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if (e.keyCode == 13 && $obj.find('.' + opts.jumpIptCls).val()) {
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var index = parseInt($obj.find('.' + opts.jumpIptCls).val());
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that.filling(index);
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typeof opts.callback === 'function' && opts.callback(that);
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}
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});
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};
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//初始化
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this.init = function () {
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this.filling(opts.current);
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this.eventBind();
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if (opts.isHide && this.getPageCount() == '1' || this.getPageCount() == '0') {
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$obj.hide();
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} else {
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$obj.show();
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}
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};
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this.init();
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};
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$.fn.pagination = function (parameter, callback) {
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if (typeof parameter == 'function') { //重载
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callback = parameter;
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parameter = {};
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} else {
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parameter = parameter || {};
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callback = callback || function () {};
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}
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var options = $.extend({}, defaults, parameter);
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return this.each(function () {
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var pagination = new Pagination(this, options);
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callback(pagination);
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});
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};
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}));
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