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                                                                                                                                                                                                      \n                                                                                                                                                                                                       \n                                                                                                                                                                                                       \n                                                                                                                                                                                                       \n                                                                                                                                                                                                      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             \n                                                                                                                                                                                                       \n\n*/\n(function (f, define) {\n    define('kendo.columnsorter', ['kendo.core'], f);\n}(function () {\n    var __meta__ = {\n        id: 'columnsorter',\n        name: 'Column Sorter',\n        category: 'framework',\n        depends: ['core'],\n        advanced: true\n    };\n    (function ($, undefined) {\n        var kendo = window.kendo;\n        var ui = kendo.ui;\n        var Widget = ui.Widget;\n        var DIR = 'dir';\n        var ASC = 'asc';\n        var SINGLE = 'single';\n        var FIELD = 'field';\n        var DESC = 'desc';\n        var sorterNS = '.kendoColumnSorter';\n        var TLINK = '.k-link';\n        var ARIASORT = 'aria-sort';\n        var proxy = $.proxy;\n        var ColumnSorter = Widget.extend({\n            init: function (element, options) {\n                var that = this, link;\n                Widget.fn.init.call(that, element, options);\n                that._refreshHandler = proxy(that.refresh, that);\n                that.dataSource = that.options.dataSource.bind('change', that._refreshHandler);\n                that.directions = that.options.initialDirection === ASC ? [\n                    ASC,\n                    DESC\n                ] : [\n                    DESC,\n                    ASC\n                ];\n                link = that.element.find(TLINK);\n                if (!link[0]) {\n                    link = that.element.wrapInner('<a class=\"k-link\" href=\"#\"/>').find(TLINK);\n                }\n                that.link = link;\n                that.element.on('click' + sorterNS, proxy(that._click, that));\n            },\n            options: {\n                name: 'ColumnSorter',\n                mode: SINGLE,\n                allowUnsort: true,\n                compare: null,\n                filter: '',\n                initialDirection: ASC,\n                showIndexes: false\n            },\n            events: ['change'],\n            destroy: function () {\n                var that = this;\n                Widget.fn.destroy.call(that);\n                that.element.off(sorterNS);\n                that.dataSource.unbind('change', that._refreshHandler);\n                that._refreshHandler = that.element = that.link = that.dataSource = null;\n            },\n            refresh: function () {\n                var that = this, sort = that.dataSource.sort() || [], idx, length, descriptor, dir, element = that.element, field = element.attr(kendo.attr(FIELD)), headerIndex, sortOrder;\n                element.removeAttr(kendo.attr(DIR));\n                element.removeAttr(ARIASORT);\n                for (idx = 0, length = sort.length; idx < length; idx++) {\n                    descriptor = sort[idx];\n                    if (field == descriptor.field) {\n                        element.attr(kendo.attr(DIR), descriptor.dir);\n                        sortOrder = idx + 1;\n                    }\n                }\n                dir = element.attr(kendo.attr(DIR));\n                if (element.is('th')) {\n                    var table = element.closest('table');\n                    if (table.parent().hasClass('k-grid-header-wrap')) {\n                        table = table.closest('.k-grid').find('.k-grid-content > table');\n                    } else if (!table.parent().hasClass('k-grid')) {\n                        table = null;\n                    }\n                    if (table) {\n                        headerIndex = element.parent().children(':visible').index(element);\n                        element.toggleClass('k-sorted', dir !== undefined);\n                        table.children('colgroup').children().eq(headerIndex).toggleClass('k-sorted', dir !== undefined);\n                    }\n                }\n                element.find('.k-i-sort-asc-sm,.k-i-sort-desc-sm,.k-sort-order').remove();\n                if (dir === ASC) {\n                    $('<span class=\"k-icon k-i-sort-asc-sm\" />').appendTo(that.link);\n                    element.attr(ARIASORT, 'ascending');\n                } else if (dir === DESC) {\n                    $('<span class=\"k-icon k-i-sort-desc-sm\" />').appendTo(that.link);\n                    element.attr(ARIASORT, 'descending');\n                }\n                if (that.options.showIndexes && sort.length > 1 && sortOrder) {\n                    $('<span class=\"k-sort-order\" />').html(sortOrder).appendTo(that.link);\n                }\n            },\n            _toggleSortDirection: function (dir) {\n                var directions = this.directions;\n                if (dir === directions[directions.length - 1] && this.options.allowUnsort) {\n                    return undefined;\n                }\n                return directions[0] === dir ? directions[1] : directions[0];\n            },\n            _click: function (e) {\n                var that = this, element = that.element, field = element.attr(kendo.attr(FIELD)), dir = element.attr(kendo.attr(DIR)), options = that.options, compare = that.options.compare === null ? undefined : that.options.compare, sort = that.dataSource.sort() || [], idx, length;\n                e.preventDefault();\n                if (options.filter && !element.is(options.filter)) {\n                    return;\n                }\n                dir = this._toggleSortDirection(dir);\n                if (this.trigger('change', {\n                        sort: {\n                            field: field,\n                            dir: dir,\n                            compare: compare\n                        }\n                    })) {\n                    return;\n                }\n                if (options.mode === SINGLE) {\n                    sort = [{\n                            field: field,\n                            dir: dir,\n                            compare: compare\n                        }];\n                } else if (options.mode === 'multiple') {\n                    for (idx = 0, length = sort.length; idx < length; idx++) {\n                        if (sort[idx].field === field) {\n                            sort.splice(idx, 1);\n                            break;\n                        }\n                    }\n                    sort.push({\n                        field: field,\n                        dir: dir,\n                        compare: compare\n                    });\n                }\n                if (this.dataSource.options.endless) {\n                    this.dataSource.options.endless = null;\n                    element.closest('.k-grid').getKendoGrid()._endlessPageSize = that.dataSource.options.pageSize;\n                    this.dataSource.pageSize(that.dataSource.options.pageSize);\n                }\n                this.dataSource.sort(sort);\n            }\n        });\n        ui.plugin(ColumnSorter);\n    }(window.kendo.jQuery));\n    return window.kendo;\n}, typeof define == 'function' && define.amd ? define : function (a1, a2, a3) {\n    (a3 || a2)();\n}));"]}