kendo.pager.js
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/**
* Kendo UI v2016.1.112 (http://www.telerik.com/kendo-ui)
* Copyright 2016 Telerik AD. All rights reserved.
*
* Kendo UI commercial licenses may be obtained at
* http://www.telerik.com/purchase/license-agreement/kendo-ui-complete
* If you do not own a commercial license, this file shall be governed by the trial license terms.
*/
(function (f, define) {
define('kendo.pager', ['kendo.data'], f);
}(function () {
var __meta__ = {
id: 'pager',
name: 'Pager',
category: 'framework',
depends: ['data'],
advanced: true
};
(function ($, undefined) {
var kendo = window.kendo, ui = kendo.ui, Widget = ui.Widget, proxy = $.proxy, FIRST = '.k-i-seek-w', LAST = '.k-i-seek-e', PREV = '.k-i-arrow-w', NEXT = '.k-i-arrow-e', CHANGE = 'change', NS = '.kendoPager', CLICK = 'click', KEYDOWN = 'keydown', DISABLED = 'disabled', iconTemplate = kendo.template('<a href="\\#" title="#=text#" class="k-link k-pager-nav #= wrapClassName #"><span class="k-icon #= className #">#=text#</span></a>');
function button(template, idx, text, numeric, title) {
return template({
idx: idx,
text: text,
ns: kendo.ns,
numeric: numeric,
title: title || ''
});
}
function icon(className, text, wrapClassName) {
return iconTemplate({
className: className.substring(1),
text: text,
wrapClassName: wrapClassName || ''
});
}
function update(element, selector, page, disabled) {
element.find(selector).parent().attr(kendo.attr('page'), page).attr('tabindex', -1).toggleClass('k-state-disabled', disabled);
}
function first(element, page) {
update(element, FIRST, 1, page <= 1);
}
function prev(element, page) {
update(element, PREV, Math.max(1, page - 1), page <= 1);
}
function next(element, page, totalPages) {
update(element, NEXT, Math.min(totalPages, page + 1), page >= totalPages);
}
function last(element, page, totalPages) {
update(element, LAST, totalPages, page >= totalPages);
}
var Pager = Widget.extend({
init: function (element, options) {
var that = this, page, totalPages;
Widget.fn.init.call(that, element, options);
options = that.options;
that.dataSource = kendo.data.DataSource.create(options.dataSource);
that.linkTemplate = kendo.template(that.options.linkTemplate);
that.selectTemplate = kendo.template(that.options.selectTemplate);
that.currentPageTemplate = kendo.template(that.options.currentPageTemplate);
page = that.page();
totalPages = that.totalPages();
that._refreshHandler = proxy(that.refresh, that);
that.dataSource.bind(CHANGE, that._refreshHandler);
if (options.previousNext) {
if (!that.element.find(FIRST).length) {
that.element.append(icon(FIRST, options.messages.first, 'k-pager-first'));
first(that.element, page, totalPages);
}
if (!that.element.find(PREV).length) {
that.element.append(icon(PREV, options.messages.previous));
prev(that.element, page, totalPages);
}
}
if (options.numeric) {
that.list = that.element.find('.k-pager-numbers');
if (!that.list.length) {
that.list = $('<ul class="k-pager-numbers k-reset" />').appendTo(that.element);
}
}
if (options.input) {
if (!that.element.find('.k-pager-input').length) {
that.element.append('<span class="k-pager-input k-label">' + options.messages.page + '<input class="k-textbox">' + kendo.format(options.messages.of, totalPages) + '</span>');
}
that.element.on(KEYDOWN + NS, '.k-pager-input input', proxy(that._keydown, that));
}
if (options.previousNext) {
if (!that.element.find(NEXT).length) {
that.element.append(icon(NEXT, options.messages.next));
next(that.element, page, totalPages);
}
if (!that.element.find(LAST).length) {
that.element.append(icon(LAST, options.messages.last, 'k-pager-last'));
last(that.element, page, totalPages);
}
}
if (options.pageSizes) {
if (!that.element.find('.k-pager-sizes').length) {
var pageSizes = options.pageSizes.length ? options.pageSizes : [
'all',
5,
10,
20
];
var pageItems = $.map(pageSizes, function (size) {
if (size.toLowerCase && size.toLowerCase() === 'all') {
return '<option value=\'all\'>' + options.messages.allPages + '</option>';
}
return '<option>' + size + '</option>';
});
$('<span class="k-pager-sizes k-label"><select/>' + options.messages.itemsPerPage + '</span>').appendTo(that.element).find('select').html(pageItems.join('')).end().appendTo(that.element);
}
that.element.find('.k-pager-sizes select').val(that.pageSize());
if (kendo.ui.DropDownList) {
that.element.find('.k-pager-sizes select').show().kendoDropDownList();
}
that.element.on(CHANGE + NS, '.k-pager-sizes select', proxy(that._change, that));
}
if (options.refresh) {
if (!that.element.find('.k-pager-refresh').length) {
that.element.append('<a href="#" class="k-pager-refresh k-link" title="' + options.messages.refresh + '"><span class="k-icon k-i-refresh">' + options.messages.refresh + '</span></a>');
}
that.element.on(CLICK + NS, '.k-pager-refresh', proxy(that._refreshClick, that));
}
if (options.info) {
if (!that.element.find('.k-pager-info').length) {
that.element.append('<span class="k-pager-info k-label" />');
}
}
that.element.on(CLICK + NS, 'a', proxy(that._click, that)).addClass('k-pager-wrap k-widget k-floatwrap');
that.element.on(CLICK + NS, '.k-current-page', proxy(that._toggleActive, that));
if (options.autoBind) {
that.refresh();
}
kendo.notify(that);
},
destroy: function () {
var that = this;
Widget.fn.destroy.call(that);
that.element.off(NS);
that.dataSource.unbind(CHANGE, that._refreshHandler);
that._refreshHandler = null;
kendo.destroy(that.element);
that.element = that.list = null;
},
events: [CHANGE],
options: {
name: 'Pager',
selectTemplate: '<li><span class="k-state-selected">#=text#</span></li>',
currentPageTemplate: '<li class="k-current-page"><span class="k-link k-pager-nav">#=text#</span></li>',
linkTemplate: '<li><a tabindex="-1" href="\\#" class="k-link" data-#=ns#page="#=idx#" #if (title !== "") {# title="#=title#" #}#>#=text#</a></li>',
buttonCount: 10,
autoBind: true,
numeric: true,
info: true,
input: false,
previousNext: true,
pageSizes: false,
refresh: false,
messages: {
allPages: 'All',
display: '{0} - {1} of {2} items',
empty: 'No items to display',
page: 'Page',
of: 'of {0}',
itemsPerPage: 'items per page',
first: 'Go to the first page',
previous: 'Go to the previous page',
next: 'Go to the next page',
last: 'Go to the last page',
refresh: 'Refresh',
morePages: 'More pages'
}
},
setDataSource: function (dataSource) {
var that = this;
that.dataSource.unbind(CHANGE, that._refreshHandler);
that.dataSource = that.options.dataSource = dataSource;
dataSource.bind(CHANGE, that._refreshHandler);
if (that.options.autoBind) {
dataSource.fetch();
}
},
refresh: function (e) {
var that = this, idx, end, start = 1, reminder, page = that.page(), html = '', options = that.options, pageSize = that.pageSize(), total = that.dataSource.total(), totalPages = that.totalPages(), linkTemplate = that.linkTemplate, buttonCount = options.buttonCount;
if (e && e.action == 'itemchange') {
return;
}
if (options.numeric) {
if (page > buttonCount) {
reminder = page % buttonCount;
start = reminder === 0 ? page - buttonCount + 1 : page - reminder + 1;
}
end = Math.min(start + buttonCount - 1, totalPages);
if (start > 1) {
html += button(linkTemplate, start - 1, '...', false, options.messages.morePages);
}
for (idx = start; idx <= end; idx++) {
html += button(idx == page ? that.selectTemplate : linkTemplate, idx, idx, true);
}
if (end < totalPages) {
html += button(linkTemplate, idx, '...', false, options.messages.morePages);
}
if (html === '') {
html = that.selectTemplate({ text: 0 });
}
html = this.currentPageTemplate({ text: page }) + html;
that.list.removeClass('k-state-expanded').html(html);
}
if (options.info) {
if (total > 0) {
html = kendo.format(options.messages.display, (page - 1) * pageSize + 1, Math.min(page * pageSize, total), total);
} else {
html = options.messages.empty;
}
that.element.find('.k-pager-info').html(html);
}
if (options.input) {
that.element.find('.k-pager-input').html(that.options.messages.page + '<input class="k-textbox">' + kendo.format(options.messages.of, totalPages)).find('input').val(page).attr(DISABLED, total < 1).toggleClass('k-state-disabled', total < 1);
}
if (options.previousNext) {
first(that.element, page, totalPages);
prev(that.element, page, totalPages);
next(that.element, page, totalPages);
last(that.element, page, totalPages);
}
if (options.pageSizes) {
var hasAll = that.element.find('.k-pager-sizes option[value=\'all\']').length > 0;
var selectAll = hasAll && pageSize === this.dataSource.total();
var text = pageSize;
if (selectAll) {
pageSize = 'all';
text = options.messages.allPages;
}
that.element.find('.k-pager-sizes select').val(pageSize).filter('[' + kendo.attr('role') + '=dropdownlist]').kendoDropDownList('value', pageSize).kendoDropDownList('text', text);
}
},
_keydown: function (e) {
if (e.keyCode === kendo.keys.ENTER) {
var input = this.element.find('.k-pager-input').find('input'), page = parseInt(input.val(), 10);
if (isNaN(page) || page < 1 || page > this.totalPages()) {
page = this.page();
}
input.val(page);
this.page(page);
}
},
_refreshClick: function (e) {
e.preventDefault();
this.dataSource.read();
},
_change: function (e) {
var value = e.currentTarget.value;
var pageSize = parseInt(value, 10);
var dataSource = this.dataSource;
if (!isNaN(pageSize)) {
dataSource.pageSize(pageSize);
} else if ((value + '').toLowerCase() == 'all') {
dataSource.pageSize(dataSource.total());
}
},
_toggleActive: function () {
this.list.toggleClass('k-state-expanded');
},
_click: function (e) {
var target = $(e.currentTarget);
e.preventDefault();
if (!target.is('.k-state-disabled')) {
this.page(target.attr(kendo.attr('page')));
}
},
totalPages: function () {
return Math.ceil((this.dataSource.total() || 0) / (this.pageSize() || 1));
},
pageSize: function () {
return this.dataSource.pageSize() || this.dataSource.total();
},
page: function (page) {
if (page !== undefined) {
this.dataSource.page(page);
this.trigger(CHANGE, { index: page });
} else {
if (this.dataSource.total() > 0) {
return this.dataSource.page();
} else {
return 0;
}
}
}
});
ui.plugin(Pager);
}(window.kendo.jQuery));
return window.kendo;
}, typeof define == 'function' && define.amd ? define : function (a1, a2, a3) {
(a3 || a2)();
}));