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var DESC = \"desc\";\n        var sorterNS = \".kendoColumnSorter\";\n        var TLINK = \".k-link\";\n        var ARIASORT = \"aria-sort\";\n\n        var ColumnSorter = Widget.extend({\n            init: function(element, options) {\n\n                var that = this, link;\n\n                Widget.fn.init.call(that, element, options);\n\n                that._refreshHandler = that.refresh.bind(that);\n\n                that.dataSource = that.options.dataSource.bind(\"change\", that._refreshHandler);\n\n                that.directions = that.options.initialDirection === ASC ? [ASC, DESC] : [DESC, ASC];\n\n                link = that.element.find(TLINK);\n\n                if (!link[0]) {\n                    link = that.element.wrapInner('<a class=\"k-link\" href=\"#\"/>').find(TLINK);\n                }\n\n                that.link = link;\n\n                that.element.on(\"click\" + sorterNS, that._click.bind(that));\n            },\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\n            events: [\"change\"],\n\n            destroy: function() {\n                var that = this;\n\n                Widget.fn.destroy.call(that);\n\n                that.element.off(sorterNS);\n\n                that.dataSource.unbind(\"change\", that._refreshHandler);\n                that._refreshHandler = that.element = that.link = that.dataSource = null;\n            },\n\n            refresh: function(e) {\n                if (e && (e.action === \"itemchange\" || e.action === \"sync\")) {\n                    return;\n                }\n                var that = this,\n                    sort = that.dataSource.sort() || [],\n                    dir,\n                    table,\n                    leafCells,\n                    element = that.element,\n                    field = element.attr(kendo.attr(FIELD)),\n                    descriptor = (that.dataSource._sortFields || {})[field],\n                    headerIndex,\n                    sortOrder;\n\n                element.removeAttr(kendo.attr(DIR));\n                element.removeAttr(ARIASORT);\n\n\n                if (descriptor) {\n                    dir = descriptor.dir;\n                    element.attr(kendo.attr(DIR), dir);\n                    sortOrder = descriptor.index;\n                }\n\n                if (element.is(\"th\") && descriptor) {\n                    table = getColsTable(element);\n\n                    if (table) {\n                        if (element.attr(kendo.attr(\"index\"))) {\n                            leafCells = leafDataCells(element.closest(\"table\"));\n                            headerIndex = leafCells.index(element);\n                        } else {\n                            headerIndex = element.parent().children(\":visible\").index(element);\n                        }\n\n                        table.find(\"col:not(.k-group-col):not(.k-hierarchy-col)\").eq(headerIndex).toggleClass(\"k-sorted\", dir !== undefined$1);\n                    }\n                }\n                element.toggleClass(\"k-sorted\", dir !== undefined$1);\n                element.find(\".k-i-sort-asc-small,.k-i-sort-desc-small,.k-svg-i-sort-asc-small,.k-svg-i-sort-desc-small,.k-sort-order,.k-sort-icon\").remove();\n\n                if (dir === ASC) {\n                    $('<span class=\"k-sort-icon\">' + kendo.ui.icon(\"sort-asc-small\") + '</span>').appendTo(that.link);\n                    element.attr(ARIASORT, \"ascending\");\n                } else if (dir === DESC) {\n                    $('<span class=\"k-sort-icon\">' + kendo.ui.icon(\"sort-desc-small\") + '</span>').appendTo(that.link);\n                    element.attr(ARIASORT, \"descending\");\n                } else {\n                    element.attr(ARIASORT, \"none\");\n                }\n                if (that.options.showIndexes && sort.length > 1 && sortOrder) {\n                    $('<span class=\"k-sort-order\" />').html(sortOrder).appendTo(that.link);\n                }\n            },\n\n            _toggleSortDirection: function(dir) {\n                var directions = this.directions;\n                if (dir === directions[directions.length - 1] && this.options.allowUnsort) {\n                    return undefined$1;\n                }\n                return directions[0] === dir ? directions[1] : directions[0];\n            },\n\n            _click: function(e) {\n                var that = this,\n                    element = that.element,\n                    field = element.attr(kendo.attr(FIELD)),\n                    dir = element.attr(kendo.attr(DIR)),\n                    options = that.options,\n                    compare = that.options.compare === null ? undefined$1 : that.options.compare,\n                    sort = that.dataSource.sort() || [],\n                    ctrlKey = e.ctrlKey || e.metaKey,\n                    idx,\n                    length;\n\n                e.preventDefault();\n\n                if (options.filter && !element.is(options.filter)) {\n                    return;\n                }\n\n                dir = this._toggleSortDirection(dir);\n\n                if (this.trigger(\"change\", { sort: { field: field, dir: dir, compare: compare } })) {\n                    return;\n                }\n\n                if (options.mode === SINGLE || (options.mode === MIXED && !ctrlKey)) {\n                    sort = [{ field: field, dir: dir, compare: compare }];\n                } else if (options.mode === MULTIPLE || (options.mode === MIXED && ctrlKey)) {\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({ field: field, dir: dir, compare: compare });\n                }\n\n                if (this.dataSource.options.endless) {\n                    element.closest(\".k-grid\").getKendoGrid()._resetEndless();\n                }\n                this.dataSource.sort(sort);\n            }\n        });\n\n        function leafDataCells(container) {\n            var rows = container.find(\"tr:not(.k-filter-row)\");\n            var indexAttr = kendo.attr(\"index\");\n\n            var cells = rows.find(\"th[\" + indexAttr + \"]:visible\");\n\n            cells.sort(function(a, b) {\n                a = $(a);\n                b = $(b);\n\n                var indexA = a.attr(indexAttr);\n                var indexB = b.attr(indexAttr);\n\n                if (indexA === undefined$1) {\n                    indexA = $(a).index();\n                }\n                if (indexB === undefined$1) {\n                    indexB = $(b).index();\n                }\n\n                indexA = parseInt(indexA, 10);\n                indexB = parseInt(indexB, 10);\n                return indexA > indexB ? 1 : (indexA < indexB ? -1 : 0);\n            });\n\n            return cells;\n        }\n\n        function getColsTable(element) {\n            var table = null;\n            if (element.is(\"th\")) {\n                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-header-locked\")) {\n                    table = table.closest(\".k-grid\").find(\".k-grid-content-locked > table\");\n                }\n            }\n            return table;\n        }\n\n        ui.plugin(ColumnSorter);\n\n    })(window.kendo.jQuery);\n    var kendo$1 = kendo;\n\n    return kendo$1;\n\n}));\n"]}