mirror of
https://github.com/oliverbooth/X10D
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318 lines
10 KiB
JavaScript
318 lines
10 KiB
JavaScript
/*!
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* jQuery pagination plugin v1.4.1
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* http://esimakin.github.io/twbs-pagination/
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*
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* Copyright 2014-2016, Eugene Simakin
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* Released under Apache 2.0 license
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* http://apache.org/licenses/LICENSE-2.0.html
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*/
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(function ($, window, document, undefined) {
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'use strict';
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var old = $.fn.twbsPagination;
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// PROTOTYPE AND CONSTRUCTOR
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var TwbsPagination = function (element, options) {
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this.$element = $(element);
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this.options = $.extend({}, $.fn.twbsPagination.defaults, options);
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if (this.options.startPage < 1 || this.options.startPage > this.options.totalPages) {
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throw new Error('Start page option is incorrect');
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}
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this.options.totalPages = parseInt(this.options.totalPages);
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if (isNaN(this.options.totalPages)) {
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throw new Error('Total pages option is not correct!');
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}
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this.options.visiblePages = parseInt(this.options.visiblePages);
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if (isNaN(this.options.visiblePages)) {
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throw new Error('Visible pages option is not correct!');
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}
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if (this.options.onPageClick instanceof Function) {
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this.$element.first().on('page', this.options.onPageClick);
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}
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// hide if only one page exists
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if (this.options.hideOnlyOnePage && this.options.totalPages == 1) {
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this.$element.trigger('page', 1);
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return this;
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}
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if (this.options.totalPages < this.options.visiblePages) {
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this.options.visiblePages = this.options.totalPages;
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}
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if (this.options.href) {
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this.options.startPage = this.getPageFromQueryString();
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if (!this.options.startPage) {
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this.options.startPage = 1;
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}
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}
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var tagName = (typeof this.$element.prop === 'function') ?
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this.$element.prop('tagName') : this.$element.attr('tagName');
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if (tagName === 'UL') {
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this.$listContainer = this.$element;
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} else {
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this.$listContainer = $('<ul></ul>');
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}
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this.$listContainer.addClass(this.options.paginationClass);
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if (tagName !== 'UL') {
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this.$element.append(this.$listContainer);
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}
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if (this.options.initiateStartPageClick) {
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this.show(this.options.startPage);
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} else {
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this.render(this.getPages(this.options.startPage));
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this.setupEvents();
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}
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return this;
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};
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TwbsPagination.prototype = {
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constructor: TwbsPagination,
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destroy: function () {
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this.$element.empty();
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this.$element.removeData('twbs-pagination');
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this.$element.off('page');
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return this;
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},
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show: function (page) {
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if (page < 1 || page > this.options.totalPages) {
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throw new Error('Page is incorrect.');
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}
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this.currentPage = page;
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this.render(this.getPages(page));
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this.setupEvents();
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this.$element.trigger('page', page);
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return this;
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},
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buildListItems: function (pages) {
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var listItems = [];
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if (this.options.first) {
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listItems.push(this.buildItem('first', 1));
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}
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if (this.options.prev) {
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var prev = pages.currentPage > 1 ? pages.currentPage - 1 : this.options.loop ? this.options.totalPages : 1;
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listItems.push(this.buildItem('prev', prev));
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}
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for (var i = 0; i < pages.numeric.length; i++) {
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listItems.push(this.buildItem('page', pages.numeric[i]));
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}
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if (this.options.next) {
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var next = pages.currentPage < this.options.totalPages ? pages.currentPage + 1 : this.options.loop ? 1 : this.options.totalPages;
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listItems.push(this.buildItem('next', next));
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}
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if (this.options.last) {
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listItems.push(this.buildItem('last', this.options.totalPages));
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}
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return listItems;
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},
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buildItem: function (type, page) {
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var $itemContainer = $('<li></li>'),
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$itemContent = $('<a></a>'),
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itemText = this.options[type] ? this.makeText(this.options[type], page) : page;
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$itemContainer.addClass(this.options[type + 'Class']);
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$itemContainer.data('page', page);
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$itemContainer.data('page-type', type);
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$itemContainer.append($itemContent.attr('href', this.makeHref(page)).addClass(this.options.anchorClass).html(itemText));
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return $itemContainer;
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},
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getPages: function (currentPage) {
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var pages = [];
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var half = Math.floor(this.options.visiblePages / 2);
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var start = currentPage - half + 1 - this.options.visiblePages % 2;
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var end = currentPage + half;
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// handle boundary case
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if (start <= 0) {
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start = 1;
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end = this.options.visiblePages;
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}
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if (end > this.options.totalPages) {
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start = this.options.totalPages - this.options.visiblePages + 1;
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end = this.options.totalPages;
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}
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var itPage = start;
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while (itPage <= end) {
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pages.push(itPage);
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itPage++;
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}
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return {"currentPage": currentPage, "numeric": pages};
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},
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render: function (pages) {
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var _this = this;
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this.$listContainer.children().remove();
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var items = this.buildListItems(pages);
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jQuery.each(items, function(key, item){
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_this.$listContainer.append(item);
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});
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this.$listContainer.children().each(function () {
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var $this = $(this),
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pageType = $this.data('page-type');
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switch (pageType) {
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case 'page':
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if ($this.data('page') === pages.currentPage) {
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$this.addClass(_this.options.activeClass);
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}
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break;
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case 'first':
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$this.toggleClass(_this.options.disabledClass, pages.currentPage === 1);
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break;
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case 'last':
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$this.toggleClass(_this.options.disabledClass, pages.currentPage === _this.options.totalPages);
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break;
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case 'prev':
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$this.toggleClass(_this.options.disabledClass, !_this.options.loop && pages.currentPage === 1);
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break;
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case 'next':
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$this.toggleClass(_this.options.disabledClass,
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!_this.options.loop && pages.currentPage === _this.options.totalPages);
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break;
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default:
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break;
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}
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});
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},
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setupEvents: function () {
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var _this = this;
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this.$listContainer.off('click').on('click', 'li', function (evt) {
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var $this = $(this);
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if ($this.hasClass(_this.options.disabledClass) || $this.hasClass(_this.options.activeClass)) {
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return false;
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}
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// Prevent click event if href is not set.
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!_this.options.href && evt.preventDefault();
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_this.show(parseInt($this.data('page')));
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});
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},
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makeHref: function (page) {
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return this.options.href ? this.generateQueryString(page) : "#";
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},
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makeText: function (text, page) {
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return text.replace(this.options.pageVariable, page)
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.replace(this.options.totalPagesVariable, this.options.totalPages)
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},
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getPageFromQueryString: function (searchStr) {
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var search = this.getSearchString(searchStr),
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regex = new RegExp(this.options.pageVariable + '(=([^&#]*)|&|#|$)'),
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page = regex.exec(search);
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if (!page || !page[2]) {
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return null;
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}
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page = decodeURIComponent(page[2]);
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page = parseInt(page);
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if (isNaN(page)) {
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return null;
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}
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return page;
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},
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generateQueryString: function (pageNumber, searchStr) {
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var search = this.getSearchString(searchStr),
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regex = new RegExp(this.options.pageVariable + '=*[^&#]*');
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if (!search) return '';
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return '?' + search.replace(regex, this.options.pageVariable + '=' + pageNumber);
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},
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getSearchString: function (searchStr) {
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var search = searchStr || window.location.search;
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if (search === '') {
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return null;
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}
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if (search.indexOf('?') === 0) search = search.substr(1);
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return search;
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}
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};
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// PLUGIN DEFINITION
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$.fn.twbsPagination = function (option) {
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var args = Array.prototype.slice.call(arguments, 1);
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var methodReturn;
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var $this = $(this);
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var data = $this.data('twbs-pagination');
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var options = typeof option === 'object' ? option : {};
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if (!data) $this.data('twbs-pagination', (data = new TwbsPagination(this, options) ));
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if (typeof option === 'string') methodReturn = data[ option ].apply(data, args);
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return ( methodReturn === undefined ) ? $this : methodReturn;
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};
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$.fn.twbsPagination.defaults = {
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totalPages: 1,
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startPage: 1,
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visiblePages: 5,
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initiateStartPageClick: true,
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hideOnlyOnePage: false,
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href: false,
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pageVariable: '{{page}}',
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totalPagesVariable: '{{total_pages}}',
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page: null,
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first: 'First',
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prev: 'Previous',
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next: 'Next',
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last: 'Last',
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loop: false,
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onPageClick: null,
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paginationClass: 'pagination',
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nextClass: 'page-item next',
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prevClass: 'page-item prev',
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lastClass: 'page-item last',
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firstClass: 'page-item first',
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pageClass: 'page-item',
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activeClass: 'active',
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disabledClass: 'disabled',
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anchorClass: 'page-link'
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};
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$.fn.twbsPagination.Constructor = TwbsPagination;
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$.fn.twbsPagination.noConflict = function () {
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$.fn.twbsPagination = old;
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return this;
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};
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$.fn.twbsPagination.version = "1.4.1";
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})(window.jQuery, window, document);
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