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old/assets/js/lib/jquery.twbsPagination.js

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2018-10-16 16:28:42 +00:00
/*
* jQuery Bootstrap Pagination v1.3.1
* https://github.com/esimakin/twbs-pagination
*
* Copyright 2014-2015 Eugene Simakin <eugenesimakin@mail.ru>
* Released under Apache 2.0 license
* http://apache.org/licenses/LICENSE-2.0.html
*/
(function ($, window, document, undefined) {
'use strict';
var old = $.fn.twbsPagination;
// PROTOTYPE AND CONSTRUCTOR
var TwbsPagination = function (element, options) {
this.$element = $(element);
this.options = $.extend({}, $.fn.twbsPagination.defaults, options);
if (this.options.startPage < 1 || this.options.startPage > this.options.totalPages) {
throw new Error('Start page option is incorrect');
}
this.options.totalPages = parseInt(this.options.totalPages);
if (isNaN(this.options.totalPages)) {
throw new Error('Total pages option is not correct!');
}
this.options.visiblePages = parseInt(this.options.visiblePages);
if (isNaN(this.options.visiblePages)) {
throw new Error('Visible pages option is not correct!');
}
if (this.options.totalPages < this.options.visiblePages) {
this.options.visiblePages = this.options.totalPages;
}
if (this.options.onPageClick instanceof Function) {
this.$element.first().on('page', this.options.onPageClick);
}
if (this.options.href) {
var match, regexp = this.options.href.replace(/[-\/\\^$*+?.|[\]]/g, '\\$&');
regexp = regexp.replace(this.options.hrefVariable, '(\\d+)');
if ((match = new RegExp(regexp, 'i').exec(window.location.href)) != null) {
this.options.startPage = parseInt(match[1], 10);
}
}
var tagName = (typeof this.$element.prop === 'function') ?
this.$element.prop('tagName') : this.$element.attr('tagName');
if (tagName === 'UL') {
this.$listContainer = this.$element;
} else {
this.$listContainer = $('<ul></ul>');
}
this.$listContainer.addClass(this.options.paginationClass);
if (tagName !== 'UL') {
this.$element.append(this.$listContainer);
}
this.render(this.getPages(this.options.startPage));
this.setupEvents();
if (this.options.initiateStartPageClick) {
this.$element.trigger('page', this.options.startPage);
}
return this;
};
TwbsPagination.prototype = {
constructor: TwbsPagination,
destroy: function () {
this.$element.empty();
this.$element.removeData('twbs-pagination');
this.$element.off('page');
return this;
},
show: function (page) {
if (page < 1 || page > this.options.totalPages) {
throw new Error('Page is incorrect.');
}
this.render(this.getPages(page));
this.setupEvents();
this.$element.trigger('page', page);
return this;
},
buildListItems: function (pages) {
var listItems = [];
if (this.options.first) {
listItems.push(this.buildItem('first', 1));
}
if (this.options.prev) {
var prev = pages.currentPage > 1 ? pages.currentPage - 1 : this.options.loop ? this.options.totalPages : 1;
listItems.push(this.buildItem('prev', prev));
}
for (var i = 0; i < pages.numeric.length; i++) {
listItems.push(this.buildItem('page', pages.numeric[i]));
}
if (this.options.next) {
var next = pages.currentPage < this.options.totalPages ? pages.currentPage + 1 : this.options.loop ? 1 : this.options.totalPages;
listItems.push(this.buildItem('next', next));
}
if (this.options.last) {
listItems.push(this.buildItem('last', this.options.totalPages));
}
return listItems;
},
buildItem: function (type, page) {
var $itemContainer = $('<li></li>'),
$itemContent = $('<a></a>'),
itemText = null;
switch (type) {
case 'page':
itemText = page;
$itemContainer.addClass(this.options.pageClass);
break;
case 'first':
itemText = this.options.first;
$itemContainer.addClass(this.options.firstClass);
break;
case 'prev':
itemText = this.options.prev;
$itemContainer.addClass(this.options.prevClass);
break;
case 'next':
itemText = this.options.next;
$itemContainer.addClass(this.options.nextClass);
break;
case 'last':
itemText = this.options.last;
$itemContainer.addClass(this.options.lastClass);
break;
default:
break;
}
$itemContainer.data('page', page);
$itemContainer.data('page-type', type);
$itemContainer.append($itemContent.attr('href', this.makeHref(page)).html(itemText));
return $itemContainer;
},
getPages: function (currentPage) {
var pages = [];
var half = Math.floor(this.options.visiblePages / 2);
var start = currentPage - half + 1 - this.options.visiblePages % 2;
var end = currentPage + half;
// handle boundary case
if (start <= 0) {
start = 1;
end = this.options.visiblePages;
}
if (end > this.options.totalPages) {
start = this.options.totalPages - this.options.visiblePages + 1;
end = this.options.totalPages;
}
var itPage = start;
while (itPage <= end) {
pages.push(itPage);
itPage++;
}
return {"currentPage": currentPage, "numeric": pages};
},
render: function (pages) {
var _this = this;
this.$listContainer.children().remove();
this.$listContainer.append(this.buildListItems(pages));
this.$listContainer.children().each(function () {
var $this = $(this),
pageType = $this.data('page-type');
switch (pageType) {
case 'page':
if ($this.data('page') === pages.currentPage) {
$this.addClass(_this.options.activeClass);
}
break;
case 'first':
$this.toggleClass(_this.options.disabledClass, pages.currentPage === 1);
break;
case 'last':
$this.toggleClass(_this.options.disabledClass, pages.currentPage === _this.options.totalPages);
break;
case 'prev':
$this.toggleClass(_this.options.disabledClass, !_this.options.loop && pages.currentPage === 1);
break;
case 'next':
$this.toggleClass(_this.options.disabledClass,
!_this.options.loop && pages.currentPage === _this.options.totalPages);
break;
default:
break;
}
});
},
setupEvents: function () {
var _this = this;
this.$listContainer.find('li').each(function () {
var $this = $(this);
$this.off();
if ($this.hasClass(_this.options.disabledClass) || $this.hasClass(_this.options.activeClass)) {
$this.on('click', false);
return;
}
$this.click(function (evt) {
// Prevent click event if href is not set.
!_this.options.href && evt.preventDefault();
_this.show(parseInt($this.data('page')));
});
});
},
makeHref: function (c) {
return this.options.href ? this.options.href.replace(this.options.hrefVariable, c) : "#";
}
};
// PLUGIN DEFINITION
$.fn.twbsPagination = function (option) {
var args = Array.prototype.slice.call(arguments, 1);
var methodReturn;
var $this = $(this);
var data = $this.data('twbs-pagination');
var options = typeof option === 'object' && option;
if (!data) $this.data('twbs-pagination', (data = new TwbsPagination(this, options) ));
if (typeof option === 'string') methodReturn = data[ option ].apply(data, args);
return ( methodReturn === undefined ) ? $this : methodReturn;
};
$.fn.twbsPagination.defaults = {
totalPages: 0,
startPage: 1,
visiblePages: 5,
initiateStartPageClick: true,
href: false,
hrefVariable: '{{number}}',
first: 'First',
prev: 'Previous',
next: 'Next',
last: 'Last',
loop: false,
onPageClick: null,
paginationClass: 'pagination',
nextClass: 'next',
prevClass: 'prev',
lastClass: 'last',
firstClass: 'first',
pageClass: 'page',
activeClass: 'active',
disabledClass: 'disabled'
};
$.fn.twbsPagination.Constructor = TwbsPagination;
$.fn.twbsPagination.noConflict = function () {
$.fn.twbsPagination = old;
return this;
};
})(window.jQuery, window, document);