带跳转的jQuery滑动分页插件
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带跳转的jquery滑动分页插件
paging.js
(function($, window, document) {
// 定义构造函数
function Paging(el, options) {
this.el = el;
this.options = {
pageNo: options.initPageNo || 1, // 初始页码
totalPages: options.totalPages || 1, //总页数
totalCount: options.totalCount || '', // 条目总数
slideSpeed: options.slideSpeed || 0, // 缓动速度
jump: options.jump || false, // 支持跳转
callback: options.callback || function() {} // 回调函数
};
this.init();
}
// 给实例对象添加公共属性和方法
Paging.prototype = {
constructor: Paging,
init: function() {
this.createDom();
this.bindEvents();
},
createDom: function() {
var that = this,
ulDom = '',
jumpDom = '',
content = '',
liWidth = 60, // li的宽度
totalPages = that.options.totalPages, // 总页数
wrapLength = 0;
totalPages > 5 ? wrapLength = 5 * liWidth : wrapLength = totalPages * liWidth;
for (var i = 1; i <= that.options.totalPages; i++) {
i != 1 ? ulDom += '' + i + ' ' : ulDom += '' + i + ' ';
}
that.options.jump ? jumpDom = '' : jumpDom = '';
content = '' +
'' +
'' +
'' +
ulDom +
'
' +
'' +
'' +
jumpDom +
'共 ' +
that.options.totalPages +
' 页
' +
'' +
that.options.totalCount +
'
';
that.el.html(content);
},
bindEvents: function() {
var that = this,
pageSelect = $('#pageSelect'), // ul
lis = pageSelect.children(), // li的集合
liWidth = lis[0].offsetWidth, // li的宽度
totalPages = that.options.totalPages, // 总页数
pageIndex = that.options.pageNo, // 当前选择的页码
distance = 0, // ul移动距离
prePage = $('#prePage'),
nextPage = $('#nextPage'),
firstPage = $('#firstPage'),
lastPage = $('#lastPage'),
jumpBtn = $('#jumpBtn'),
jumpText = $('#jumpText');
prePage.on('click', function() {
pageIndex--;
if (pageIndex < 1) pageIndex = 1;
handles(pageIndex);
})
nextPage.on('click', function() {
pageIndex++;
if (pageIndex > lis.length) pageIndex = lis.length;
handles(pageIndex);
})
firstPage.on('click', function() {
pageIndex = 1;
handles(pageIndex);
})
lastPage.on('click', function() {
pageIndex = totalPages;
handles(pageIndex);
})
jumpBtn.on('click', function() {
var jumpNum = parseInt(jumpText.val().replace(/\D/g, ''));
if (jumpNum && jumpNum >= 1 && jumpNum <= totalPages) {
pageIndex = jumpNum;
handles(pageIndex);
jumpText.val(jumpNum);
}
})
lis.on('click', function() {
pageIndex = $(this).index() + 1;
handles(pageIndex);
})
function handles(pageIndex) {
lis.removeClass('sel-page').eq(pageIndex - 1).addClass('sel-page');
if (totalPages <= 5) {
that.options.callback(pageIndex);
return false;
}
if (pageIndex >= 3 && pageIndex <= totalPages - 2) distance = (pageIndex - 3) * liWidth;
if (pageIndex == 2 || pageIndex == 1) distance = 0;
if (pageIndex > totalPages - 2) distance = (totalPages - 5) * liWidth;
pageSelect.css('transform', 'translateX(' + (-distance) + 'px)');
pageIndex == 1 ? firstPage.attr('disabled', true) : firstPage.attr('disabled', false);
pageIndex == 1 ? prePage.attr('disabled', true) : prePage.attr('disabled', false);
pageIndex == totalPages ? lastPage.attr('disabled', true) : lastPage.attr('disabled', false);
pageIndex == totalPages ? nextPage.attr('disabled', true) : nextPage.attr('disabled', false);
that.options.callback(pageIndex);
}
handles(that.options.pageNo); // 初始化页码位置
}
}
$.fn.paging = function(options) {
return new Paging($(this), options);
}
})(jQuery, window, document);