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(global, factory) {\n    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(require('kendo.data.js'), require('kendo.icons.js')) :\n    typeof define === 'function' && define.amd ? define(['kendo.data', 'kendo.icons'], factory) :\n    (global = typeof globalThis !== 'undefined' ? globalThis : global || self, (global.kendopanelbar = global.kendopanelbar || {}, global.kendopanelbar.js = factory()));\n})(this, (function () {\n    var __meta__ = {\n        id: \"panelbar\",\n        name: \"PanelBar\",\n        category: \"web\",\n        description: \"The PanelBar widget displays hierarchical data as a multi-level expandable panel bar.\",\n        depends: [\"core\", \"data\", \"data.odata\", \"icons\"]\n    };\n\n    (function($, undefined$1) {\n        var kendo = window.kendo,\n            ui = kendo.ui,\n            keys = kendo.keys,\n            extend = $.extend,\n            encode = kendo.htmlEncode,\n            each = $.each,\n            isArray = Array.isArray,\n            template = kendo.template,\n            Widget = ui.Widget,\n            HierarchicalDataSource = kendo.data.HierarchicalDataSource,\n            excludedNodesRegExp = /^(ul|a|div)$/i,\n            NS = \".kendoPanelBar\",\n            IMG = \"img\",\n            HREF = \"href\",\n            LAST = \"k-last\",\n            LINK = \"k-link\",\n            LINKSELECTOR = \".\" + LINK,\n            ERROR = \"error\",\n            ITEM = \".k-panelbar-item\",\n            GROUP = \".k-group\",\n            VISIBLEGROUP = GROUP + \":visible\",\n            IMAGE = \"k-image\",\n            FIRST = \"k-first\",\n            CHANGE = \"change\",\n            EXPAND = \"expand\",\n            SELECT = \"select\",\n            CLICK = \"click\",\n            CONTENT = \"k-content\",\n            ACTIVATE = \"activate\",\n            COLLAPSE = \"collapse\",\n            DATABOUND = \"dataBound\",\n            MOUSEENTER = \"mouseenter\",\n            MOUSELEAVE = \"mouseleave\",\n            CONTENTLOAD = \"contentLoad\",\n            UNDEFINED = \"undefined\",\n            ACTIVECLASS = \"k-active\",\n            EXPANDEDCLASS = \"k-expanded\",\n            GROUPS = \"> .k-panel\",\n            CONTENTS = \"> .k-content\",\n            STRING = \"string\",\n            FOCUSEDCLASS = \"k-focus\",\n            DISABLEDCLASS = \"k-disabled\",\n            SELECTEDCLASS = \"k-selected\",\n            SELECTEDSELECTOR = \".\" + SELECTEDCLASS,\n            HIGHLIGHTCLASS = \"k-highlight\",\n            ACTIVEITEMSELECTOR = ITEM + \":not(.k-disabled)\",\n            clickableItems = \"> \" + ACTIVEITEMSELECTOR + \" > \" + LINKSELECTOR + \", .k-panel > \" + ACTIVEITEMSELECTOR + \" > \" + LINKSELECTOR,\n            disabledItems = ITEM + \".k-disabled > .k-link\",\n            selectableItems = \"> li > \" + SELECTEDSELECTOR + \", .k-panel > li > \" + SELECTEDSELECTOR,\n            ARIA_DISABLED = \"aria-disabled\",\n            ARIA_EXPANDED = \"aria-expanded\",\n            ARIA_HIDDEN = \"aria-hidden\",\n            ARIA_SELECTED = \"aria-selected\",\n            VISIBLE = \":visible\",\n            EMPTY = \":empty\",\n            SINGLE = \"single\",\n            bindings = {\n                text: \"dataTextField\",\n                url: \"dataUrlField\",\n                spriteCssClass: \"dataSpriteCssClassField\",\n                imageUrl: \"dataImageUrlField\"\n            },\n            itemIcon,\n            rendering = {\n            aria: function(item) {\n                var attr = \"\";\n\n                if (item.items || item.content || item.contentUrl || item.expanded) {\n                    attr += ARIA_EXPANDED + \"='\" + (item.expanded ? \"true\" : \"false\") + \"' \";\n                }\n\n                if (item.enabled === false) {\n                    attr += ARIA_DISABLED + \"='true'\";\n                }\n\n                return attr;\n            },\n\n        wrapperCssClass: function(group, item) {\n            var result = \"k-panelbar-item\",\n                index = item.index;\n\n            if (group.firstLevel) {\n                result += \" k-panelbar-header\";\n            }\n\n            if (item.enabled === false) {\n                result += \" \" + DISABLEDCLASS;\n            } else if (item.expanded === true) {\n                result += \" \" + ACTIVECLASS;\n                result += \" \" + EXPANDEDCLASS;\n            }\n\n            if (index === 0) {\n                result += \" k-first\";\n            }\n\n            if (index == group.length - 1) {\n                result += \" k-last\";\n            }\n\n            if (item.cssClass) {\n                result += \" \" + item.cssClass;\n            }\n\n            if (item.level) {\n                result += \" k-level-\" + item.level();\n            }\n\n            return result;\n        },\n\n        textClass: function(item) {\n            var result = LINK;\n\n            if (item.selected) {\n                result += \" \" + SELECTEDCLASS;\n            }\n\n            return result;\n        },\n        textAttributes: function(url) {\n            return url ? \" href='\" + url + \"'\" : \"\";\n        },\n        arrowIconOptions: function(item) {\n            return {\n                icon: item.expanded ? \"chevron-up\" : \"chevron-down\",\n                iconClass: (\"k-panelbar-toggle k-panelbar-\" + (item.expanded ? \"collapse\" : \"expand\"))\n            };\n        },\n        text: function(item) {\n             return item.encoded === false ? item.text : kendo.htmlEncode(item.text);\n        },\n        groupAttributes: function(group) {\n            return group.expanded !== true ? (\" \" + (kendo.attr(\"style-display\")) + \"=\\\"none\\\"\") : \"\";\n        },\n        ariaHidden: function(group) {\n            return group.expanded !== true;\n        },\n        groupCssClass: function() {\n            return \"k-panelbar-group k-group k-panel\";\n        },\n        contentAttributes: function(content) {\n            return content.item.expanded !== true ? (\" \" + (kendo.attr(\"style-display\")) + \"=\\\"none\\\"\") : \"\";\n        },\n        content: function(item) {\n            return item.content ? item.content : item.contentUrl ? \"\" : \"&nbsp;\";\n        },\n        contentUrl: function(item) {\n            return item.contentUrl ? 'href=\"' + item.contentUrl + '\"' : \"\";\n        }\n    };\n\n        function updateFirstLast(items) {\n            items = $(items);\n\n            items.filter(\".k-first:not(:first-child)\").removeClass(FIRST);\n            items.filter(\".k-last:not(:last-child)\").removeClass(LAST);\n            items.filter(\":first-child\").addClass(FIRST);\n            items.filter(\":last-child\").addClass(LAST);\n        }\n\n        function updateLevel(item) {\n            item = $(item);\n\n            item.addClass(\"k-level-\" + item.parentsUntil(\".k-panelbar\", \"ul\").length);\n        }\n\n         function updateItemHtml(item) {\n            var wrapper = item,\n                group = item.children(\"ul\"),\n                toggleButton = wrapper.children(\".k-link\").children(\".k-panelbar-toggle\");\n\n            if (item.hasClass(\"k-panelbar\")) {\n                return;\n            }\n\n            if (!toggleButton.length && group.length) {\n                toggleButton = $(\"<span class='k-panelbar-toggle' />\").appendTo(wrapper);\n            } else if (!group.length || !group.children().length) {\n                toggleButton.remove();\n                group.remove();\n            }\n         }\n\n        itemIcon = function(item) {\n            return item.children(\"span\").children(\".k-panelbar-toggle\");\n        };\n\n        var PanelBar = kendo.ui.DataBoundWidget.extend({\n            init: function(element, options) {\n                var that = this,\n                    content,\n                    hasDataSource;\n\n               if (isArray(options)) {\n                    options = { dataSource: options };\n               }\n\n                hasDataSource = options && !!options.dataSource;\n\n                Widget.fn.init.call(that, element, options);\n\n                element = that.wrapper = that.element.addClass(\"k-panelbar k-pos-relative\");\n                options = that.options;\n\n                if (element[0].id) {\n                    that._itemId = element[0].id + \"_pb_active\";\n                }\n\n                that._tabindex();\n\n                that._accessors();\n\n                that._dataSource();\n\n                that._templates();\n\n                that._initData(hasDataSource);\n\n                that._updateClasses();\n\n                that._animations(options);\n\n                element\n                    .on(CLICK + NS, clickableItems, that._click.bind(that))\n                    .on(MOUSEENTER + NS + \" \" + MOUSELEAVE + NS, clickableItems, that._toggleHover)\n                    .on(CLICK + NS, disabledItems, false)\n                    .on(CLICK + NS, \".k-request-retry\", that._retryRequest.bind(that))\n                    .on(\"keydown\" + NS, that._keydown.bind(that))\n                    .on(\"focus\" + NS, function() {\n                        var item = that.select();\n                        that._current(item[0] ? item : that._first());\n                    })\n                    .on(\"blur\" + NS, function() {\n                        that._current(null);\n                    })\n                    .attr(\"role\", \"tree\");\n\n                content = element.find(\"li.\" + ACTIVECLASS + \" > .\" + CONTENT);\n\n                if (content[0]) {\n                    that.expand(content.parent(), false);\n                }\n\n                kendo.notify(that);\n\n                if (that._showWatermarkOverlay) {\n                    that._showWatermarkOverlay(that.wrapper[0]);\n                }\n            },\n\n            events: [\n                EXPAND,\n                COLLAPSE,\n                SELECT,\n                ACTIVATE,\n                CHANGE,\n                ERROR,\n                DATABOUND,\n                CONTENTLOAD\n            ],\n            options: {\n                name: \"PanelBar\",\n                dataSource: {},\n                animation: {\n                    expand: {\n                        effects: \"expand:vertical\",\n                        duration: 200\n                    },\n                    collapse: { // if collapse animation effects are defined, they will be used instead of expand.reverse\n                        duration: 200\n                    }\n                },\n                messages: {\n                    loading: \"Loading...\",\n                    requestFailed: \"Request failed.\",\n                    retry: \"Retry\"\n                },\n                autoBind: true,\n                loadOnDemand: true,\n                expandMode: \"multiple\",\n                template: null,\n                dataTextField: null\n            },\n\n            destroy: function() {\n                Widget.fn.destroy.call(this);\n\n                this.element.off(NS);\n\n                kendo.destroy(this.element);\n            },\n\n            _initData: function(hasDataSource) {\n                var that = this;\n\n                if (hasDataSource) {\n                    that.element.empty();\n                     if (that.options.autoBind) {\n                        that._progress(true);\n\n                        that.dataSource.fetch();\n                     }\n                }\n            },\n\n            _templates: function() {\n                var that = this,\n                    options = that.options,\n                    fieldAccessor = that._fieldAccessor.bind(that);\n\n                  if (options.template && typeof options.template == STRING) {\n                        options.template = template(options.template);\n                  } else if (!options.template) {\n                      options.template = template(function (data) {\n                          var text = fieldAccessor(\"text\")(data.item);\n                          if (typeof data.item.encoded != 'undefined' && data.item.encoded === false) {\n                              return (\"<span class='k-panelbar-item-text'>\" + text + \"</span>\");\n                          } else {\n                              return (\"<span class='k-panelbar-item-text'>\" + (encode(text)) + \"</span>\");\n                          }\n                      });\n                    }\n\n                that.templates = {\n                    content: template(\n                       function (ref) {\n                           var data = ref.data;\n                           var item = ref.item;\n                           var contentAttributes = ref.contentAttributes;\n                           var content = ref.content;\n\n                           return (\"<div class='k-panelbar-content k-content'\" + (contentAttributes({ data: data, item: item, contentAttributes: contentAttributes, content: content })) + \">\" + (content(item)) + \"</div>\");\n                }\n                    ),\n                    group: template( function (ref) {\n                            var data = ref.data;\n                            var items = ref.items;\n                            var group = ref.group;\n                            var renderItems = ref.renderItems;\n                            var panelBar = ref.panelBar;\n                            var ariaHidden = ref.ariaHidden;\n                            var groupCssClass = ref.groupCssClass;\n                            var groupAttributes = ref.groupAttributes;\n\n                            return \"<ul role='group' aria-hidden='\" + (ariaHidden(group)) + \"' class='\" + (groupCssClass(group)) + \"' \" + (groupAttributes(group)) + \">\" +\n                            renderItems({ data: data, items: items, group: group, renderItems: renderItems, panelBar: panelBar, ariaHidden: ariaHidden, groupCssClass: groupCssClass, groupAttributes: groupAttributes }) +\n                        \"</ul>\";\n                }\n                    ),\n                    itemWrapper: template(function (ref) {\n                         var panelBar = ref.panelBar;\n                         var item = ref.item;\n                         var arrow = ref.arrow;\n                         var textClass = ref.textClass;\n                         var arrowIconOptions = ref.arrowIconOptions;\n                         var textAttributes = ref.textAttributes;\n                         var contentUrl = ref.contentUrl;\n\n                         var url = fieldAccessor(\"url\")(item);\n                         var imageUrl = fieldAccessor(\"imageUrl\")(item);\n                         var spriteCssClass = fieldAccessor(\"spriteCssClass\")(item);\n                         var contentUrl = contentUrl(item);\n                         var tag = url || contentUrl ? 'a' : 'span';\n\n                        return \"<\" + tag + \" class='\" + (textClass(item)) + \"' \" + contentUrl + (textAttributes(url)) + \">\" +\n                            (imageUrl ? (\"<img class='k-panelbar-item-icon k-image' alt='' src='\" + imageUrl + \"' />\") : '') +\n                            (spriteCssClass ? (\"<span class='k-sprite \" + spriteCssClass + \"'></span>\") : '') +\n                            panelBar.options.template({ panelBar: panelBar, item: item, arrow: arrow, textClass: textClass, textAttributes: textAttributes, contentUrl: contentUrl }) +\n                            arrow({ panelBar: panelBar, item: item, arrow: arrow, textClass: textClass, arrowIconOptions: arrowIconOptions, textAttributes: textAttributes, contentUrl: contentUrl }) +\n                        \"</\" + tag + \">\";\n                    }),\n\n                    item: template(function (ref) {\n                            var data = ref.data;\n                            var group = ref.group;\n                            var item = ref.item;\n                            var panelBar = ref.panelBar;\n                            var itemWrapper = ref.itemWrapper;\n                            var renderContent = ref.renderContent;\n                            var arrow = ref.arrow;\n                            var arrowIconOptions = ref.arrowIconOptions;\n                            var subGroup = ref.subGroup;\n                            var aria = ref.aria;\n                            var wrapperCssClass = ref.wrapperCssClass;\n                            var contentUrl = ref.contentUrl;\n                            var textClass = ref.textClass;\n                            var textAttributes = ref.textAttributes;\n\n                            return \"<li aria-selected='false' role='treeitem' \" + (aria(item)) + \"class='\" + (wrapperCssClass(group, item)) + \"' \" +\n                        kendo.attr(\"uid\") + \"='\" + (item.uid) + \"'>\" +\n                            itemWrapper({ data: data, group: group, item: item, panelBar: panelBar, itemWrapper: itemWrapper, renderContent: renderContent, arrow: arrow, arrowIconOptions: arrowIconOptions, subGroup: subGroup, aria: aria, wrapperCssClass: wrapperCssClass, contentUrl: contentUrl, textClass: textClass, textAttributes: textAttributes }) +\n                            ((item.items && item.items.length > 0) ?\n                            subGroup({ items: item.items, panelBar: panelBar, group: { expanded: item.expanded } })\n                            : ((item.content || item.contentUrl) ?\n                            renderContent({ data: data, group: group, item: item, panelBar: panelBar, itemWrapper: itemWrapper, renderContent: renderContent, arrow: arrow, arrowIconOptions: arrowIconOptions, subGroup: subGroup, aria: aria, wrapperCssClass: wrapperCssClass, contentUrl: contentUrl, textClass: textClass, textAttributes: textAttributes })\n                            : \"\")\n                            ) +\n                        \"</li>\";\n                }\n                    ),\n                    loading: template(function (ref) {\n                        var messages = ref.messages;\n\n                        return (\"<li class='k-panelbar-item'><span class='k-icon k-i-loading'></span> \" + (encode(messages.loading)) + \"</li>\");\n                }),\n                    retry: template(function (ref) {\n                            var messages = ref.messages;\n\n                            return \"<li class='k-panelbar-item'>\" +\n                            (encode(messages.requestFailed)) + \" \" +\n                            \"<button class='k-button k-button-md k-rounded-md k-button-solid k-button-solid-base k-request-retry'><span class='k-button-text'>\" + (encode(messages.retry)) + \"</span></button>\" +\n                        \"</li>\";\n                }\n                    ),\n                    arrow: template(function (ref) {\n                        var item = ref.item;\n                        var arrowIconOptions = ref.arrowIconOptions;\n\n                        return kendo.ui.icon(arrowIconOptions(item));\n                }),\n                    empty: template(function () { return \"\"; })\n                };\n            },\n\n            setOptions: function(options) {\n                var animation = this.options.animation;\n\n                this._animations(options);\n\n                options.animation = extend(true, animation, options.animation);\n\n                if (\"dataSource\" in options) {\n                    this.setDataSource(options.dataSource);\n                }\n\n                Widget.fn.setOptions.call(this, options);\n            },\n\n            expand: function(element, useAnimation) {\n                var that = this,\n                    animBackup = {};\n\n                element = this.element.find(element);\n\n                if (that._animating && element.find(\"ul\").is(\":visible\")) {\n                    that.one(\"complete\", function() {\n                        setTimeout(function() {\n                            that.expand(element);\n                        });\n                    });\n                    return;\n                }\n                that._animating = true;\n\n                useAnimation = useAnimation !== false;\n\n                element.each(function(index, item) {\n                    item = $(item);\n                    var wrapper = element.children(\".k-group,.k-content\");\n\n                    if (!wrapper.length) {\n                        wrapper = that._addGroupElement(element);\n                    }\n\n                     var groups = wrapper.add(item.find(CONTENTS));\n\n                    if (!item.hasClass(DISABLEDCLASS) && groups.length > 0) {\n\n                        if (that.options.expandMode == SINGLE && that._collapseAllExpanded(item)) {\n                            return that;\n                        }\n\n                        element.find(\".\" + HIGHLIGHTCLASS).removeClass(HIGHLIGHTCLASS);\n                        item.addClass(HIGHLIGHTCLASS);\n\n                        if (!useAnimation) {\n                            animBackup = that.options.animation;\n                            that.options.animation = { expand: { effects: {} }, collapse: { hide: true, effects: {} } };\n                        }\n\n                        if (!that._triggerEvent(EXPAND, item)) {\n                            that._toggleItem(item, false, false);\n                        }\n\n                        if (!useAnimation) {\n                            that.options.animation = animBackup;\n                        }\n                    }\n                });\n\n                return that;\n            },\n\n            collapse: function(element, useAnimation) {\n                var that = this,\n                    animBackup = {};\n\n                that._animating = true;\n\n                useAnimation = useAnimation !== false;\n                element = that.element.find(element);\n\n                element.each(function(index, item) {\n                    item = $(item);\n                    var groups = item.find(GROUPS).add(item.find(CONTENTS));\n\n                    if (!item.hasClass(DISABLEDCLASS) && groups.is(VISIBLE)) {\n                        item.removeClass(HIGHLIGHTCLASS);\n\n                        if (!useAnimation) {\n                            animBackup = that.options.animation;\n                            that.options.animation = { expand: { effects: {} }, collapse: { hide: true, effects: {} } };\n                        }\n\n                        if (!that._triggerEvent(COLLAPSE, item)) {\n                            that._toggleItem(item, true);\n                        }\n\n                        if (!useAnimation) {\n                            that.options.animation = animBackup;\n                        }\n                    }\n\n                });\n                return that;\n            },\n\n             updateArrow: function(items) {\n                    var that = this;\n\n                    items = $(items);\n                    items.children(LINKSELECTOR).children(\".k-panelbar-collapse, .k-panelbar-expand\").remove();\n\n                    items\n                        .filter(function() {\n                            var dataItem = that.dataItem(this);\n\n                            if (!dataItem) {\n                                return $(this).find(\".k-panel\").length > 0 ||\n                                    $(this).find(\".k-content\").length > 0;\n                            }\n\n                            return dataItem.hasChildren || dataItem.content || dataItem.contentUrl;\n                        })\n                        .children(\".k-link:not(:has([class*=-i-chevron]))\")\n                        .each(function() {\n                            var item = $(this),\n                                parent = item.parent();\n                            var icon = kendo.ui.icon({\n                                icon: parent.hasClass(ACTIVECLASS) ? \"chevron-up\" : \"chevron-down\",\n                                iconClass: (\"k-panelbar-toggle k-panelbar-\" + (parent.hasClass(ACTIVECLASS) ? \"collapse\" : \"expand\"))\n                            });\n\n                            item.append(icon);\n                        });\n             },\n\n            _accessors: function() {\n                var that = this,\n                    options = that.options,\n                    i, field, textField,\n                    element = that.element;\n\n                for (i in bindings) {\n                    field = options[bindings[i]];\n                    textField = element.attr(kendo.attr(i + \"-field\"));\n\n                    if (!field && textField) {\n                        field = textField;\n                    }\n\n                    if (!field) {\n                        field = i;\n                    }\n\n                    if (!isArray(field)) {\n                        field = [field];\n                    }\n\n                    options[bindings[i]] = field;\n                }\n            },\n\n            _progress: function(item, showProgress) {\n                var element = this.element;\n                var loadingText = this.templates.loading({ messages: this.options.messages });\n\n                if (arguments.length == 1) {\n                    showProgress = item;\n\n                    if (showProgress) {\n                        element.html(loadingText);\n                    } else {\n                        element.empty();\n                    }\n                }\n                else {\n                    itemIcon(item)\n                        .empty()\n                        .removeClass(\"k-i-arrow-rotate-cw k-svg-i-arrow-rotate-cw\")\n                        .toggleClass(\"k-i-loading\", showProgress);\n                }\n            },\n\n            _refreshRoot: function(items) {\n                var that = this;\n                var parent = that.element;\n                var groupData = {\n                    firstLevel: true,\n                    expanded: true,\n                    length: parent.children().length\n                };\n\n                this.element.empty();\n\n                var rootItemsHtml = $.map(items, function(value, idx) {\n                        if (typeof value === \"string\") {\n                            return $(value);\n                        } else {\n                            value.items = [];\n                            var itemElement = $(that.renderItem({\n                                group: groupData,\n                                item: extend(value, { index: idx })\n                            }));\n\n                            kendo.applyStylesFromKendoAttributes(itemElement, [\"display\"]);\n                            return itemElement;\n                        }\n                });\n\n                this.element.append(rootItemsHtml);\n                var elements = this.element.children(\".k-panelbar-item\");\n                for (var i = 0; i < items.length; i++) {\n                    this.trigger(\"itemChange\", {\n                        item: elements.eq(i).find(\".k-link\").first(),\n                        data: items[i],\n                        ns: ui\n                    });\n                }\n            },\n\n            _refreshChildren: function(item, parentNode) {\n                var i, children, child;\n\n                parentNode.children(\".k-group\").empty();\n                var items = item.children.data();\n                if (!items.length) {\n                    updateItemHtml(parentNode);\n                    children = parentNode.children(\".k-group\").children(\"li\");\n                } else {\n                    this.append(item.children, parentNode);\n\n                    if (this.options.loadOnDemand) {\n                        this._toggleGroup(parentNode.children(\".k-group\"), false);\n                    }\n                    children = parentNode.children(\".k-group\").children(\"li\");\n\n                    for (i = 0; i < children.length; i++) {\n                        child = children.eq(i);\n                        this.trigger(\"itemChange\", {\n                            item: child.find(\".k-link\").first(),\n                            data: this.dataItem(child),\n                            ns: ui\n                        });\n                    }\n                }\n            },\n\n            findByUid: function(uid) {\n                var items = this.element.find(\".k-panelbar-item\");\n                var uidAttr = kendo.attr(\"uid\");\n                var result;\n\n                for (var i = 0; i < items.length; i++) {\n                    if (items[i].getAttribute(uidAttr) == uid) {\n                        result = items[i];\n                        break;\n                    }\n                }\n\n                return $(result);\n            },\n\n            refresh: function(e) {\n                var options = this.options;\n                var node = e.node;\n                var action = e.action;\n                var items = e.items;\n                var parentNode = this.wrapper;\n                var loadOnDemand = options.loadOnDemand;\n\n                if (e.field) {\n                    if (!items[0] || !items[0].level) {\n                        return;\n                    }\n\n                    return this._updateItems(items, e.field);\n                }\n\n                if (node) {\n                    parentNode = this.findByUid(node.uid);\n                    this._progress(parentNode, false);\n                }\n                if (action == \"add\") {\n                    this._appendItems(e.index, items, parentNode);\n                } else if (action == \"remove\") {\n                    this.remove(this.findByUid(items[0].uid));\n                } else if (action == \"itemchange\") {\n                    this._updateItems(items);\n                } else if (action == \"itemloaded\") {\n                    this._refreshChildren(node, parentNode);\n                } else {\n                    this._refreshRoot(items);\n                }\n\n                if (action != \"remove\") {\n                    for (var k = 0; k < items.length; k++) {\n\n                        if (!loadOnDemand || items[k].expanded) {\n                            var tempItem = items[k];\n                            if (this._hasChildItems(tempItem)) {\n                                    tempItem.load();\n                            }\n                        }\n                    }\n                }\n\n                this.trigger(DATABOUND, { node: node ? parentNode : undefined$1 });\n            },\n\n            _error: function(e) {\n                var node = e.node && this.findByUid(e.node.uid);\n                var retryHtml = this.templates.retry({ messages: this.options.messages });\n\n                if (node) {\n                    this._progress(node, false);\n                    this._expanded(node, false);\n                    kendo.ui.icon(itemIcon(node), { icon: \"arrow-rotate-cw\" });\n                    e.node.loaded(false);\n                } else {\n                    this._progress(false);\n                    this.element.html(retryHtml);\n                }\n            },\n\n            _retryRequest: function(e) {\n                e.preventDefault();\n\n                this.dataSource.fetch();\n            },\n\n             items: function() {\n                return this.element.find(\".k-panelbar-item > span:first-child\");\n            },\n\n            setDataSource: function(dataSource) {\n                var options = this.options;\n\n                options.dataSource = dataSource;\n\n                this._dataSource();\n\n                if (this.options.autoBind) {\n                    this._progress(true);\n                    this.dataSource.fetch();\n                }\n            },\n\n            _bindDataSource: function() {\n                this._refreshHandler = this.refresh.bind(this);\n                this._errorHandler = this._error.bind(this);\n\n                this.dataSource.bind(CHANGE, this._refreshHandler);\n                this.dataSource.bind(ERROR, this._errorHandler);\n            },\n\n            _unbindDataSource: function() {\n                var dataSource = this.dataSource;\n\n                if (dataSource) {\n                    dataSource.unbind(CHANGE, this._refreshHandler);\n                    dataSource.unbind(ERROR, this._errorHandler);\n                }\n            },\n\n            // generates accessor function for a given field name, honoring the data*Field arrays\n            _fieldAccessor: function(fieldName) {\n                var fieldBindings = this.options[bindings[fieldName]] || [],\n                    count = fieldBindings.length;\n\n                if (count === 0) {\n                    return (function(item) { return item[fieldName]; });\n                } else {\n                    return (function(item) {\n                        var levels = $.map(fieldBindings, kendo.getter);\n                        if (item.level) {\n                            return levels[Math.min(item.level(), count - 1)](item);\n                        } else {\n                            return levels[count - 1](item);\n                        }\n                    });\n                }\n            },\n\n            _dataSource: function() {\n                var that = this,\n                    options = that.options,\n                    dataSource = options.dataSource;\n\n                if (!dataSource) {\n                    return;\n                }\n\n                dataSource = isArray(dataSource) ? { data: dataSource } : dataSource;\n\n                that._unbindDataSource();\n\n                if (!dataSource.fields) {\n                    dataSource.fields = [\n                        { field: \"text\" },\n                        { field: \"url\" },\n                        { field: \"spriteCssClass\" },\n                        { field: \"imageUrl\" }\n                    ];\n                }\n\n                that.dataSource = HierarchicalDataSource.create(dataSource);\n\n                that._bindDataSource();\n            },\n\n            _appendItems: function(index, items, parentNode) {\n                var that = this, children, wrapper;\n\n                  if (parentNode.hasClass(\"k-panelbar\")) {\n                      children = parentNode.children(\"li\");\n                      wrapper = parentNode;\n                  } else {\n                      wrapper = parentNode.children(\".k-group\");\n                      if (!wrapper.length) {\n                          wrapper = that._addGroupElement(parentNode);\n                      }\n\n                      children = wrapper.children(\"li\");\n                  }\n\n                 var groupData = {\n                    firstLevel: parentNode.hasClass(\"k-panelbar\"),\n                    expanded: true,\n                    length: children.length\n                 };\n\n                 var itemsHtml = $.map(items, function(value, idx) {\n                        if (typeof value === \"string\") {\n                            return $(value);\n                        } else {\n                            var itemElement = $(that.renderItem({\n                                group: groupData,\n                                item: extend(value, { index: idx })\n                            }));\n\n                            kendo.applyStylesFromKendoAttributes(itemElement, [\"display\"]);\n                            return itemElement;\n                        }\n                });\n\n                  if (typeof index == UNDEFINED) {\n                       index = children.length;\n                  }\n\n                  for (var i = 0; i < itemsHtml.length; i++) {\n                      if (children.length === 0 || index === 0) {\n                          wrapper.append(itemsHtml[i]);\n                      } else {\n                           itemsHtml[i].insertAfter(children[index - 1]);\n                      }\n                   }\n\n                  if (that.dataItem(parentNode)) {\n                      that.dataItem(parentNode).hasChildren = true;\n                      that.updateArrow(parentNode);\n                  }\n            },\n\n            _updateItems: function(items, field) {\n                var that = this;\n                var i, node, nodeWrapper, item;\n                var context = { panelBar: that.options, item: item, group: {} };\n                var render = field != \"expanded\";\n\n                if (field == \"selected\") {\n                    if (items[0][field]) {\n                        var currentNode = that.findByUid(items[0].uid);\n\n                        if (!currentNode.hasClass(DISABLEDCLASS)) {\n                            that.select(currentNode, true);\n                        }\n                    } else {\n                        that.clearSelection();\n                    }\n                } else {\n                    var elements = $.map(items, function(item) {\n                        return that.findByUid(item.uid);\n                    });\n\n                    for (i = 0; i < items.length; i++) {\n                        context.item = item = items[i];\n                        context.panelBar = that;\n                        nodeWrapper = elements[i];\n                        node = nodeWrapper.parent();\n                        if (render) {\n                            context.group = {\n                                firstLevel: node.hasClass(\"k-panelbar\"),\n                                expanded: nodeWrapper.parent().hasClass(ACTIVECLASS),\n                                length: nodeWrapper.children().length\n                            };\n\n                            nodeWrapper.children(\".k-link\").remove();\n                            nodeWrapper.prepend(that.templates.itemWrapper(extend(context,\n                                {\n                                    arrow: item.hasChildren || item.content || item.contentUrl ? that.templates.arrow : that.templates.empty\n                                },\n                                rendering)));\n                        }\n\n                        if (field == \"expanded\") {\n                            that._toggleItem(nodeWrapper, !item[field], item[field] ? \"true\" : true);\n                        } else if (field == \"enabled\") {\n                            that.enable(nodeWrapper, item[field]);\n                             if (!item[field]) {\n                                if (item.selected) {\n                                    item.set(\"selected\", false);\n                                }\n                             }\n                        }\n\n                        if (nodeWrapper.length) {\n                            this.trigger(\"itemChange\", { item: nodeWrapper.find(\".k-link\").first(), data: item, ns: ui });\n                        }\n                    }\n                }\n            },\n\n            _toggleDisabled: function(element, enable) {\n                element = this.element.find(element);\n                element\n                    .toggleClass(DISABLEDCLASS, !enable)\n                    .attr(ARIA_DISABLED, !enable);\n            },\n\n           dataItem: function(item) {\n                var uid = $(item).closest(ITEM).attr(kendo.attr(\"uid\")),\n                    dataSource = this.dataSource;\n\n                return dataSource && dataSource.getByUid(uid);\n           },\n\n           select: function(element, skipChange) {\n               var that = this;\n\n                if (element === undefined$1) {\n                    return that.element.find(selectableItems).parent();\n                }\n\n                element = that.element.find(element);\n\n                if (!element.length) {\n                    this._updateSelected(element);\n                } else {\n                    element\n                        .each(function() {\n                            var item = $(this),\n                                link = item.children(LINKSELECTOR);\n\n                            if (item.hasClass(DISABLEDCLASS)) {\n                                return that;\n                            }\n\n                            that._updateSelected(link, skipChange);\n                        });\n                }\n\n                return that;\n            },\n\n            clearSelection: function() {\n                this.select($());\n            },\n\n            enable: function(element, state) {\n                this._toggleDisabled(element, state !== false);\n\n                return this;\n            },\n\n            disable: function(element) {\n                this._toggleDisabled(element, false);\n\n                return this;\n            },\n\n            append: function(item, referenceItem) {\n                referenceItem = this.element.find(referenceItem);\n\n                var inserted = this._insert(item, referenceItem, referenceItem.length ? referenceItem.find(GROUPS) : null);\n\n                each(inserted.items, function() {\n                    inserted.group.append(this);\n                    updateFirstLast(this);\n                    updateLevel(this);\n                });\n\n                this.updateArrow(referenceItem);\n                updateFirstLast(inserted.group.find(\".k-first, .k-last\"));\n                inserted.group.height(\"auto\");\n\n                return this;\n            },\n\n            insertBefore: function(item, referenceItem) {\n                referenceItem = this.element.find(referenceItem);\n\n                var inserted = this._insert(item, referenceItem, referenceItem.parent());\n\n                each(inserted.items, function() {\n                    referenceItem.before(this);\n                    updateFirstLast(this);\n                    updateLevel(this);\n                });\n\n                updateFirstLast(referenceItem);\n                inserted.group.height(\"auto\");\n\n                return this;\n            },\n\n            insertAfter: function(item, referenceItem) {\n                referenceItem = this.element.find(referenceItem);\n\n                var inserted = this._insert(item, referenceItem, referenceItem.parent());\n\n                each(inserted.items, function() {\n                    referenceItem.after(this);\n                    updateFirstLast(this);\n                    updateLevel(this);\n                });\n\n                updateFirstLast(referenceItem);\n                inserted.group.height(\"auto\");\n\n                return this;\n            },\n\n            remove: function(element) {\n                element = this.element.find(element);\n\n                var that = this,\n                    parent = element.parentsUntil(that.element, ITEM),\n                    group = element.parent(\"ul\");\n\n                element.remove();\n\n                if (group && !group.hasClass(\"k-panelbar\") && !group.children(ITEM).length) {\n                    group.remove();\n                }\n\n                if (parent.length) {\n                    parent = parent.eq(0);\n\n                    that.updateArrow(parent);\n                    updateFirstLast(parent);\n                }\n\n                return that;\n            },\n\n            reload: function(element) {\n                var that = this;\n                element = that.element.find(element);\n\n                element.each(function() {\n                    var item = $(this);\n\n                    that._ajaxRequest(item, item.children(\".\" + CONTENT), !item.is(VISIBLE));\n                });\n            },\n\n            _first: function() {\n                return this.element.children(ACTIVEITEMSELECTOR).first();\n            },\n\n            _last: function() {\n                var item = this.element.children(ACTIVEITEMSELECTOR).last(),\n                    group = item.children(VISIBLEGROUP);\n\n                if (group[0]) {\n                    return group.children(ACTIVEITEMSELECTOR).last();\n                }\n                return item;\n            },\n\n            _current: function(candidate) {\n                var that = this,\n                    focused = that._focused,\n                    id = that._itemId;\n\n                if (candidate === undefined$1) {\n                    return focused;\n                }\n\n                that.element.removeAttr(\"aria-activedescendant\");\n\n                if (focused && focused.length) {\n                    if (focused[0].id === id) {\n                        focused.removeAttr(\"id\");\n                    }\n\n                    focused\n                        .children(LINKSELECTOR)\n                        .removeClass(FOCUSEDCLASS);\n                }\n\n                if ($(candidate).length) {\n                    id = candidate[0].id || id;\n\n                    candidate.attr(\"id\", id)\n                             .children(LINKSELECTOR)\n                             .addClass(FOCUSEDCLASS);\n\n                    that.element.attr(\"aria-activedescendant\", id);\n                }\n\n                that._focused = candidate;\n            },\n\n            _keydown: function(e) {\n                var that = this,\n                    key = e.keyCode,\n                    current = that._current();\n\n                if (e.target != e.currentTarget) {\n                    return;\n                }\n\n                if (key == keys.DOWN || key == keys.RIGHT) {\n                    that._current(that._nextItem(current));\n                    e.preventDefault();\n                } else if (key == keys.UP || key == keys.LEFT) {\n                    that._current(that._prevItem(current));\n                    e.preventDefault();\n                } else if (key == keys.ENTER || key == keys.SPACEBAR) {\n                    that._click(e);\n                    e.preventDefault();\n                } else if (key == keys.HOME) {\n                    that._current(that._first());\n                    e.preventDefault();\n                } else if (key == keys.END) {\n                    that._current(that._last());\n                    e.preventDefault();\n                }\n            },\n\n            _nextItem: function(item) {\n                if (!item) {\n                    return this._first();\n                }\n\n                var group = item.children(VISIBLEGROUP),\n                    next = item.nextAll(\":visible\").first();\n\n                if (group[0]) {\n                    next = group.children(\".\" + FIRST);\n                }\n\n                if (!next[0]) {\n                    next = item.parent(VISIBLEGROUP).parent(ITEM).next();\n                }\n\n                if (!next[0]) {\n                    next = this._first();\n                }\n\n                return next;\n            },\n\n            _prevItem: function(item) {\n                if (!item) {\n                    return this._last();\n                }\n\n                var prev = item.prevAll(\":visible\").first(),\n                    result;\n\n                if (!prev[0]) {\n                    prev = item.parent(VISIBLEGROUP).parent(ITEM);\n                    if (!prev[0]) {\n                        prev = this._last();\n                    }\n                } else {\n                    result = prev;\n                    while (result[0]) {\n                        result = result.children(VISIBLEGROUP).children(\".\" + LAST);\n                        if (result[0]) {\n                            prev = result;\n                        }\n                    }\n                }\n\n                return prev;\n            },\n\n            _insert: function(item, referenceItem, parent) {\n                var that = this,\n                    items,\n                    plain = $.isPlainObject(item),\n                    isReferenceItem = referenceItem && referenceItem[0],\n                    groupData;\n\n                if (!isReferenceItem) {\n                    parent = that.element;\n                }\n\n                groupData = {\n                    firstLevel: parent.hasClass(\"k-panelbar\"),\n                    expanded: $(referenceItem).hasClass(ACTIVECLASS),\n                    length: parent.children().length\n                };\n\n                if (isReferenceItem && !parent.length) {\n                    parent = $(that.renderGroup({ group: groupData, options: that.options }));\n                    kendo.applyStylesFromKendoAttributes(parent, [\"display\"]);\n                    parent.appendTo(referenceItem);\n                }\n\n                if (plain || Array.isArray(item) || item instanceof HierarchicalDataSource) { // is JSON or HierarchicalDataSource\n                    if (item instanceof HierarchicalDataSource) {\n                       item = item.data();\n                    }\n\n                    items = $.map(plain ? [item] : item, function(value, idx) {\n                        if (typeof value === \"string\") {\n                            return $(value);\n                        } else {\n                            var itemElement = $(that.renderItem({\n                                group: groupData,\n                                item: extend(value, { index: idx })\n                            }));\n\n                            kendo.applyStylesFromKendoAttributes(itemElement, [\"display\"]);\n                            return itemElement;\n                        }\n                    });\n                    if (isReferenceItem) {\n                        var dataItem = that.dataItem(referenceItem);\n\n                        if (dataItem) {\n                            dataItem.hasChildren = true;\n                            referenceItem\n                                .attr(ARIA_EXPANDED, dataItem.expanded)\n                                .not(\".\" + ACTIVECLASS)\n                                .children(\"ul\")\n                                .attr(ARIA_HIDDEN, !dataItem.expanded);\n                        } else {\n                            referenceItem.attr(ARIA_EXPANDED, false);\n                        }\n                    }\n                } else {\n                    if (typeof item == \"string\" && item.charAt(0) != \"<\") {\n                        items = that.element.find(item);\n                    } else {\n                        items = $(item);\n                    }\n                    that._updateItemsClasses(items);\n                }\n\n                if (!item.length) {\n                    item = [item];\n                }\n\n                return { items: items, group: parent };\n            },\n\n            _toggleHover: function(e) {\n                var target = $(e.currentTarget);\n\n                if (!target.parents(\"li.\" + DISABLEDCLASS).length) {\n                    target.toggleClass(\"k-hover\", e.type == MOUSEENTER);\n                }\n            },\n\n            _updateClasses: function() {\n                var that = this,\n                    panels, items, expanded, panelsParent, dataItem;\n\n                panels = that.element\n                             .find(\"li > ul\")\n                             .not(function() { return $(this).parentsUntil(\".k-panelbar\", \"div\").length; })\n                             .addClass(\"k-panelbar-group k-group k-panel\")\n                             .attr(\"role\", \"group\");\n\n                panelsParent = panels.parent();\n                dataItem = that.dataItem(panelsParent);\n                expanded = (dataItem && dataItem.expanded) || false;\n\n                panels.parent()\n                      .not(\"[\" + ARIA_EXPANDED + \"]\")\n                      .attr(ARIA_EXPANDED, expanded)\n                      .not(\".\" + ACTIVECLASS)\n                      .children(\"ul\")\n                      .attr(ARIA_HIDDEN, !expanded)\n                      .hide();\n\n                items = that.element.add(panels).children();\n\n                that._updateItemsClasses(items);\n                that.updateArrow(items);\n                updateFirstLast(items);\n            },\n\n            _updateItemsClasses: function(items) {\n                var length = items.length,\n                    idx = 0;\n\n                for (; idx < length; idx++) {\n                    this._updateItemClasses(items[idx], idx);\n                }\n            },\n\n            _updateItemClasses: function(item, index) {\n                var selected = this._selected,\n                    contentUrls = this.options.contentUrls,\n                    url = contentUrls && contentUrls[index],\n                    root = this.element[0],\n                    wrapElement, link;\n\n                item = $(item)\n                    .addClass(\"k-panelbar-item\")\n                    .attr({\n                        role: \"treeitem\",\n                        \"aria-selected\": false\n                    });\n\n                if (kendo.support.browser.msie) { // IE10 doesn't apply list-style: none on invisible items otherwise.\n                    item.css(\"list-style-position\", \"inside\")\n                        .css(\"list-style-position\", \"\");\n                }\n\n                item\n                    .children(IMG)\n                    .addClass(IMAGE);\n\n                link = item\n                        .children(\"a\")\n                        .addClass(LINK);\n\n                if (link[0]) {\n                    link.attr(\"href\", url); //url can be undefined\n\n                    link.children(IMG)\n                        .addClass(IMAGE);\n                }\n\n                item\n                    .filter(\"li[disabled]\")\n                    .addClass(\"k-disabled\")\n                    .attr(ARIA_DISABLED, true)\n                    .prop(\"disabled\", false);\n\n                item\n                    .children(\"div\")\n                    .addClass(CONTENT + \" k-panelbar-content\")\n                    .attr(ARIA_HIDDEN, true)\n                    .hide()\n                    .parent()\n                    .attr(ARIA_EXPANDED, false);\n\n                link = item.children(SELECTEDSELECTOR);\n                if (link[0]) {\n                    if (selected) {\n                        selected.attr(ARIA_SELECTED, false)\n                                .children(SELECTEDSELECTOR)\n                                .removeClass(SELECTEDCLASS);\n                    }\n\n                    link.addClass(SELECTEDCLASS);\n                    this._selected = item.attr(ARIA_SELECTED, true);\n                }\n\n                if (!item.children(LINKSELECTOR)[0]) {\n                    wrapElement = \"<span class='\" + LINK + \"'><span class='k-panelbar-item-text'></span></span>\";\n                    if (contentUrls && contentUrls[index] && item[0].parentNode == root) {\n                        wrapElement = '<a class=\"k-link\" href=\"' + contentUrls[index] + '\"></a>';\n                    }\n\n                    item\n                        .contents() // exclude groups, real links, templates and empty text nodes\n                        .filter(function() { return (!this.nodeName.match(excludedNodesRegExp) && !(this.nodeType == 3 && !kendo.trim(this.nodeValue.trim))); })\n                        .wrapAll(wrapElement);\n                }\n\n\n                if (item.parent(\".k-panelbar\")[0]) {\n                    item.addClass(\"k-panelbar-header\");\n                } else {\n                    item.addClass(\"k-panelbar-item\");\n                }\n\n                if (!/k\\-level\\-\\d+/i.test(item.attr(\"class\"))) {\n                    item.addClass(\"k-level-\" + item.parentsUntil(this.element, \"ul\").length);\n                }\n            },\n\n            _click: function(e) {\n                var that = this,\n                    target = e.type == CLICK ? $(e.target) : that._current().children(LINKSELECTOR),\n                    element = that.element,\n                    prevent, contents, href, isAnchor;\n\n                if (target.parents(\"li.\" + DISABLEDCLASS).length) {\n                    return;\n                }\n\n                if (target.closest(\".k-panelbar\")[0] != element[0]) {\n                    return;\n                }\n\n                if (target.is(\":kendoFocusable\") && !target.hasClass(LINK)) {\n                    return;\n                }\n\n                var link = target.closest(LINKSELECTOR),\n                    item = link.closest(ITEM);\n\n                that._updateSelected(link);\n\n                var wrapper = item.children(\".k-group,.k-content\");\n                var dataItem = this.dataItem(item);\n\n                if (!wrapper.length && ((that.options.loadOnDemand && dataItem && dataItem.hasChildren) ||\n                 this._hasChildItems(item) || item.content || item.contentUrl)) {\n                    wrapper = that._addGroupElement(item);\n                }\n\n                contents = item.find(GROUPS).add(item.find(CONTENTS));\n                href = link.attr(HREF);\n                isAnchor = href && (href.charAt(href.length - 1) == \"#\" || href.indexOf(\"#\" + that.element[0].id + \"-\") != -1);\n                prevent = !!(isAnchor || contents.length);\n\n                if (contents.data(\"animating\") && prevent) {\n                    e.preventDefault();\n                    return;\n                }\n\n                if (that._triggerEvent(SELECT, item)) {\n                    prevent = true;\n                }\n\n                if (prevent === false) {\n                    return;\n                }\n\n                if (that.options.expandMode == SINGLE) {\n                    if (that._collapseAllExpanded(item) && prevent) {\n                        e.preventDefault();\n                        return;\n                    }\n                }\n\n                if (contents.length) {\n                    var visibility = contents.is(VISIBLE);\n\n                    if (!that._triggerEvent(!visibility ? EXPAND : COLLAPSE, item)) {\n                        prevent = that._toggleItem(item, visibility);\n                    }\n                }\n\n                if (prevent) {\n                    e.preventDefault();\n                }\n            },\n            _hasChildItems: function(item) {\n                return (item.items && item.items.length > 0) || item.hasChildren;\n            },\n\n            _toggleItem: function(element, isVisible, expanded) {\n                var that = this,\n                    childGroup = element.find(GROUPS),\n                    link = element.find(LINKSELECTOR),\n                    url = link.attr(HREF),\n                    prevent, content,\n                    dataItem = that.dataItem(element),\n                    notVisible = !isVisible;\n\n                var loaded = dataItem && dataItem.loaded();\n\n                if (dataItem && !expanded && dataItem.expanded !== notVisible) {\n                    dataItem.set(\"expanded\", notVisible);\n                    prevent = dataItem.hasChildren || !!dataItem.content || !!dataItem.contentUrl;\n                    return prevent;\n                }\n\n                if (dataItem && (!expanded || expanded === \"true\") && !loaded && !dataItem.content && !dataItem.contentUrl) {\n                     if (that.options.loadOnDemand) {\n                         this._progress(element, true);\n                     }\n\n                     element.children(\".k-group,.k-content\").remove();\n                     prevent = dataItem.hasChildren;\n\n                     dataItem.load();\n                 } else {\n                       if (childGroup.length) {\n                            this._toggleGroup(childGroup, isVisible);\n                            prevent = true;\n                       } else {\n                            content = element.children(\".\" + CONTENT);\n\n                            if (content.length) {\n                                prevent = true;\n\n                                if (!content.is(EMPTY) || url === undefined$1) {\n                                    that._toggleGroup(content, isVisible);\n                                } else {\n                                    that._ajaxRequest(element, content, isVisible);\n                                }\n                            }\n                        }\n                 }\n\n                return prevent;\n            },\n\n            _toggleGroup: function(element, visibility) {\n                var that = this,\n                    animationSettings = that.options.animation,\n                    animation = animationSettings.expand,\n                    hasCollapseAnimation = animationSettings.collapse && \"effects\" in animationSettings.collapse,\n                    collapse = extend({}, animationSettings.expand, animationSettings.collapse);\n\n                if (element.hasClass(\"k-hidden\")) {\n                    element.removeClass(\"k-hidden\");\n                }\n\n                if (!hasCollapseAnimation) {\n                    collapse = extend(collapse, { reverse: true });\n                }\n\n                if (element.is(VISIBLE) != visibility) {\n                    that._animating = false;\n                    return;\n                }\n\n                element.attr(ARIA_HIDDEN, !!visibility);\n\n                element.parent()\n                    .attr(ARIA_EXPANDED, !visibility)\n                    .toggleClass(ACTIVECLASS, !visibility)\n                    .toggleClass(EXPANDEDCLASS, !visibility)\n                    .find(\"> .k-link > .k-panelbar-collapse,> .k-link > .k-panelbar-expand\")\n                    .each(function(ind, el) {\n                        var iconEl = $(el);\n                        iconEl.removeClass(\"k-panelbar-expand k-panelbar-collapse\");\n                        kendo.ui.icon(iconEl, {\n                            icon: visibility ? \"chevron-down\" : \"chevron-up\",\n                            iconClass: visibility ? \"k-panelbar-expand\" : \"k-panelbar-collapse\"\n                        });\n                    });\n                if (visibility) {\n                    animation = extend(collapse, { hide: true });\n\n                    animation.complete = function() {\n                        that._animationCallback();\n                    };\n                } else {\n                    animation = extend( { complete: function(element) {\n                            that._triggerEvent(ACTIVATE, element.closest(ITEM));\n                            that._animationCallback();\n                        } }, animation );\n                }\n\n                element\n                    .toggle(0)\n                    .kendoStop(true, true)\n                    .kendoAnimate( animation );\n            },\n\n            _animationCallback: function() {\n                var that = this;\n                that.trigger(\"complete\");\n                that._animating = false;\n            },\n\n            _addGroupElement: function(element) {\n                var group = $('<ul role=\"group\" aria-hidden=\"true\" class=\"k-panelbar-group k-group k-panel\"></ul>').hide();\n\n                element.append(group);\n                return group;\n            },\n\n            _collapseAllExpanded: function(item) {\n                var that = this, children, stopExpand = false;\n\n                var groups = item.find(GROUPS).add(item.find(CONTENTS));\n\n                if (groups.is(VISIBLE)) {\n                    stopExpand = true;\n                }\n\n                if (!(groups.is(VISIBLE) || groups.length === 0)) {\n                    children = item.siblings();\n                    children.find(GROUPS).add(children.find(CONTENTS))\n                            .filter(function() { return $(this).is(VISIBLE); })\n                            .each(function(index, content) {\n                                content = $(content);\n\n                                stopExpand = that._triggerEvent(COLLAPSE, content.closest(ITEM));\n                                if (!stopExpand) {\n                                    that._toggleGroup(content, true);\n                                }\n                            });\n\n                     that.one(\"complete\", function() {\n                        setTimeout(function() {\n                            children.each(function(index, child) {\n                                var dataItem = that.dataItem(child);\n\n                                if (dataItem) {\n                                    dataItem.set(\"expanded\", false);\n                                }\n                            });\n                        });\n                    });\n                }\n\n                return stopExpand;\n            },\n\n            _ajaxRequest: function(element, contentElement, isVisible) {\n\n                var that = this,\n                    statusIcon = element.find(\".k-panelbar-collapse, .k-panelbar-expand\"),\n                    link = element.find(LINKSELECTOR),\n                    loadingIconTimeout = setTimeout(function() {\n                        statusIcon\n                            .empty()\n                            .removeClass(\"k-i-chevron-up k-i-chevron-down k-svg-i-chevron-up k-svg-i-chevron-down\")\n                            .addClass(\"k-i-loading\");\n                    }, 100),\n                    data = {},\n                    url = link.attr(HREF);\n\n                $.ajax({\n                    type: \"GET\",\n                    cache: false,\n                    url: url,\n                    dataType: \"html\",\n                    data: data,\n\n                    error: function(xhr, status) {\n                        statusIcon.removeClass(\"k-i-loading\");\n                        kendo.ui.icon(statusIcon, { icon: statusIcon.hasClass(\"k-panelbar-expand\") ? \"chevron-down\" : \"chevron-up\" });\n                        if (that.trigger(ERROR, { xhr: xhr, status: status })) {\n                            this.complete();\n                        }\n                    },\n\n                    complete: function() {\n                        clearTimeout(loadingIconTimeout);\n                        kendo.ui.icon(statusIcon, { icon: statusIcon.hasClass(\"k-panelbar-expand\") ? \"chevron-down\" : \"chevron-up\" });\n                        statusIcon.removeClass(\"k-i-loading\");\n                    },\n\n                    success: function(data) {\n                        function getElements() {\n                            return { elements: contentElement.get() };\n                        }\n                        try {\n                            contentElement.html(data);\n                        } catch (e) {\n                            var console = window.console;\n\n                            if (console && console.error) {\n                                console.error(e.name + \": \" + e.message + \" in \" + url);\n                            }\n                            this.error(this.xhr, \"error\");\n                        }\n\n                        that._toggleGroup(contentElement, isVisible);\n\n                        that.trigger(CONTENTLOAD, { item: element[0], contentElement: contentElement[0] });\n                    }\n                });\n            },\n\n            _triggerEvent: function(eventName, element) {\n                var that = this;\n\n                return that.trigger(eventName, { item: element[0] });\n            },\n\n            _updateSelected: function(link, skipChange) {\n                var that = this,\n                    element = that.element,\n                    item = link.parent(ITEM),\n                    selected = that._selected,\n                    dataItem = that.dataItem(item);\n\n                if (selected) {\n                    selected.attr(ARIA_SELECTED, false);\n                }\n\n                that._selected = item.attr(ARIA_SELECTED, true);\n\n                element.find(selectableItems).removeClass(SELECTEDCLASS);\n                element.find(\"> .\" + HIGHLIGHTCLASS + \", .k-panel > .\" + HIGHLIGHTCLASS).removeClass(HIGHLIGHTCLASS);\n\n                link.addClass(SELECTEDCLASS);\n                link.parentsUntil(element, ITEM).filter(\":has(.k-link)\").addClass(HIGHLIGHTCLASS);\n                that._current(item[0] ? item : null);\n                if (dataItem) {\n                     dataItem.set(\"selected\", true);\n                }\n\n                if (!skipChange) {\n                    that.trigger(CHANGE);\n                }\n            },\n\n            _animations: function(options) {\n                if (options && (\"animation\" in options) && !options.animation) {\n                    options.animation = { expand: { effects: {} }, collapse: { hide: true, effects: {} } };\n                }\n            },\n\n            renderItem: function(options) {\n                var that = this;\n                    options = extend({ panelBar: that, group: {} }, options);\n\n                var empty = that.templates.empty,\n                    item = options.item;\n\n                return that.templates.item(extend(options, {\n                    itemWrapper: that.templates.itemWrapper,\n                    renderContent: that.renderContent,\n                    arrow: that._hasChildItems(item) || item.content || item.contentUrl ? that.templates.arrow : empty,\n                    subGroup: !options.loadOnDemand || item.expanded ? that.renderGroup : empty\n                }, rendering));\n            },\n\n            renderGroup: function(options) {\n                var that = this;\n                var templates = that.templates || options.panelBar.templates;\n\n                return templates.group(extend({\n                    renderItems: function(options) {\n                        var html = \"\",\n                            i = 0,\n                            items = options.items,\n                            len = items ? items.length : 0,\n                            group = extend({ length: len }, options.group);\n\n                        for (; i < len; i++) {\n                            html += options.panelBar.renderItem(extend(options, {\n                                group: group,\n                                item: extend({ index: i }, items[i])\n                            }));\n                        }\n\n                        return html;\n                    }\n                }, options, rendering));\n            },\n\n            renderContent: function(options) {\n                return options.panelBar.templates.content(extend(options, rendering));\n            }\n        });\n\n    kendo.ui.plugin(PanelBar);\n\n    })(window.kendo.jQuery);\n    var kendo$1 = kendo;\n\n    return kendo$1;\n\n}));\n"]}