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strict';\nvar $ = require('../internals/export');\nvar flattenIntoArray = require('../internals/flatten-into-array');\nvar aCallable = require('../internals/a-callable');\nvar toObject = require('../internals/to-object');\nvar lengthOfArrayLike = require('../internals/length-of-array-like');\nvar arraySpeciesCreate = require('../internals/array-species-create');\n\n// `Array.prototype.flatMap` method\n// https://tc39.es/ecma262/#sec-array.prototype.flatmap\n$({ target: 'Array', proto: true }, {\n  flatMap: function flatMap(callbackfn /* , thisArg */) {\n    var O = toObject(this);\n    var sourceLen = lengthOfArrayLike(O);\n    var A;\n    aCallable(callbackfn);\n    A = arraySpeciesCreate(O, 0);\n    A.length = flattenIntoArray(A, O, O, sourceLen, 0, 1, callbackfn, arguments.length > 1 ? arguments[1] : undefined);\n    return A;\n  }\n});\n","'use strict';\nvar collection = require('../internals/collection');\nvar collectionStrong = require('../internals/collection-strong');\n\n// `Set` constructor\n// https://tc39.es/ecma262/#sec-set-objects\ncollection('Set', function (init) {\n  return function Set() { return init(this, arguments.length ? arguments[0] : undefined); };\n}, collectionStrong);\n","// this method was added to unscopables after implementation\n// in popular engines, so it's moved to a separate module\nvar addToUnscopables = require('../internals/add-to-unscopables');\n\n// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables\naddToUnscopables('flatMap');\n","// Components\nimport { VExpandTransition } from '../transitions'\nimport { VIcon } from '../VIcon'\nimport VTreeview from './VTreeview'\n\n// Mixins\nimport { inject as RegistrableInject } from '../../mixins/registrable'\nimport Colorable from '../../mixins/colorable'\n\n// Utils\nimport mixins, { ExtractVue } from '../../util/mixins'\nimport { getObjectValueByPath, createRange } from '../../util/helpers'\n\n// Types\nimport { VNode, VNodeChildren, PropType } from 'vue'\nimport { PropValidator } from 'vue/types/options'\n\ntype VTreeViewInstance = InstanceType<typeof VTreeview>\n\nconst baseMixins = mixins(\n  Colorable,\n  RegistrableInject('treeview')\n)\n\ninterface options extends ExtractVue<typeof baseMixins> {\n  treeview: VTreeViewInstance\n}\n\nexport const VTreeviewNodeProps = {\n  activatable: Boolean,\n  activeClass: {\n    type: String,\n    default: 'v-treeview-node--active',\n  },\n  color: {\n    type: String,\n    default: 'primary',\n  },\n  disablePerNode: Boolean,\n  expandIcon: {\n    type: String,\n    default: '$subgroup',\n  },\n  indeterminateIcon: {\n    type: String,\n    default: '$checkboxIndeterminate',\n  },\n  itemChildren: {\n    type: String,\n    default: 'children',\n  },\n  itemDisabled: {\n    type: String,\n    default: 'disabled',\n  },\n  itemKey: {\n    type: String,\n    default: 'id',\n  },\n  itemText: {\n    type: String,\n    default: 'name',\n  },\n  loadChildren: Function as PropType<(item: any) => Promise<void>>,\n  loadingIcon: {\n    type: String,\n    default: '$loading',\n  },\n  offIcon: {\n    type: String,\n    default: '$checkboxOff',\n  },\n  onIcon: {\n    type: String,\n    default: '$checkboxOn',\n  },\n  openOnClick: Boolean,\n  rounded: Boolean,\n  selectable: Boolean,\n  selectedColor: {\n    type: String,\n    default: 'accent',\n  },\n  shaped: Boolean,\n  transition: Boolean,\n  selectionType: {\n    type: String as PropType<'leaf' | 'independent'>,\n    default: 'leaf',\n    validator: (v: string) => ['leaf', 'independent'].includes(v),\n  },\n}\n\n/* @vue/component */\nconst VTreeviewNode = baseMixins.extend<options>().extend({\n  name: 'v-treeview-node',\n\n  inject: {\n    treeview: {\n      default: null,\n    },\n  },\n\n  props: {\n    level: Number,\n    item: {\n      type: Object,\n      default: () => null,\n    } as PropValidator<Record<string, unknown> | null>,\n    parentIsDisabled: Boolean,\n    ...VTreeviewNodeProps,\n  },\n\n  data: () => ({\n    hasLoaded: false,\n    isActive: false, // Node is selected (row)\n    isIndeterminate: false, // Node has at least one selected child\n    isLoading: false,\n    isOpen: false, // Node is open/expanded\n    isSelected: false, // Node is selected (checkbox)\n  }),\n\n  computed: {\n    disabled (): boolean {\n      return (\n        getObjectValueByPath(this.item, this.itemDisabled) ||\n        (!this.disablePerNode && (this.parentIsDisabled && this.selectionType === 'leaf'))\n      )\n    },\n    key (): string {\n      return getObjectValueByPath(this.item, this.itemKey)\n    },\n    children (): any[] | null {\n      const children = getObjectValueByPath(this.item, this.itemChildren)\n      return children && children.filter((child: any) => !this.treeview.isExcluded(getObjectValueByPath(child, this.itemKey)))\n    },\n    text (): string {\n      return getObjectValueByPath(this.item, this.itemText)\n    },\n    scopedProps (): object {\n      return {\n        item: this.item,\n        leaf: !this.children,\n        selected: this.isSelected,\n        indeterminate: this.isIndeterminate,\n        active: this.isActive,\n        open: this.isOpen,\n      }\n    },\n    computedIcon (): string {\n      if (this.isIndeterminate) return this.indeterminateIcon\n      else if (this.isSelected) return this.onIcon\n      else return this.offIcon\n    },\n    hasChildren (): boolean {\n      return !!this.children && (!!this.children.length || !!this.loadChildren)\n    },\n  },\n\n  created () {\n    this.treeview.register(this)\n  },\n\n  beforeDestroy () {\n    this.treeview.unregister(this)\n  },\n\n  methods: {\n    checkChildren (): Promise<void> {\n      return new Promise<void>(resolve => {\n        // TODO: Potential issue with always trying\n        // to load children if response is empty?\n        if (!this.children || this.children.length || !this.loadChildren || this.hasLoaded) return resolve()\n\n        this.isLoading = true\n        resolve(this.loadChildren(this.item))\n      }).then(() => {\n        this.isLoading = false\n        this.hasLoaded = true\n      })\n    },\n    open () {\n      this.isOpen = !this.isOpen\n      this.treeview.updateOpen(this.key, this.isOpen)\n      this.treeview.emitOpen()\n    },\n    genLabel () {\n      const children = []\n\n      if (this.$scopedSlots.label) children.push(this.$scopedSlots.label(this.scopedProps))\n      else children.push(this.text)\n\n      return this.$createElement('div', {\n        slot: 'label',\n        staticClass: 'v-treeview-node__label',\n      }, children)\n    },\n    genPrependSlot () {\n      if (!this.$scopedSlots.prepend) return null\n\n      return this.$createElement('div', {\n        staticClass: 'v-treeview-node__prepend',\n      }, this.$scopedSlots.prepend(this.scopedProps))\n    },\n    genAppendSlot () {\n      if (!this.$scopedSlots.append) return null\n\n      return this.$createElement('div', {\n        staticClass: 'v-treeview-node__append',\n      }, this.$scopedSlots.append(this.scopedProps))\n    },\n    genContent () {\n      const children = [\n        this.genPrependSlot(),\n        this.genLabel(),\n        this.genAppendSlot(),\n      ]\n\n      return this.$createElement('div', {\n        staticClass: 'v-treeview-node__content',\n      }, children)\n    },\n    genToggle () {\n      return this.$createElement(VIcon, {\n        staticClass: 'v-treeview-node__toggle',\n        class: {\n          'v-treeview-node__toggle--open': this.isOpen,\n          'v-treeview-node__toggle--loading': this.isLoading,\n        },\n        slot: 'prepend',\n        on: {\n          click: (e: MouseEvent) => {\n            e.stopPropagation()\n\n            if (this.isLoading) return\n\n            this.checkChildren().then(() => this.open())\n          },\n        },\n      }, [this.isLoading ? this.loadingIcon : this.expandIcon])\n    },\n    genCheckbox () {\n      return this.$createElement(VIcon, {\n        staticClass: 'v-treeview-node__checkbox',\n        props: {\n          color: this.isSelected || this.isIndeterminate ? this.selectedColor : undefined,\n          disabled: this.disabled,\n        },\n        on: {\n          click: (e: MouseEvent) => {\n            e.stopPropagation()\n\n            if (this.isLoading) return\n\n            this.checkChildren().then(() => {\n              // We nextTick here so that items watch in VTreeview has a chance to run first\n              this.$nextTick(() => {\n                this.isSelected = !this.isSelected\n                this.isIndeterminate = false\n\n                this.treeview.updateSelected(this.key, this.isSelected)\n                this.treeview.emitSelected()\n              })\n            })\n          },\n        },\n      }, [this.computedIcon])\n    },\n    genLevel (level: number) {\n      return createRange(level).map(() => this.$createElement('div', {\n        staticClass: 'v-treeview-node__level',\n      }))\n    },\n    genNode () {\n      const children = [this.genContent()]\n\n      if (this.selectable) children.unshift(this.genCheckbox())\n\n      if (this.hasChildren) {\n        children.unshift(this.genToggle())\n      } else {\n        children.unshift(...this.genLevel(1))\n      }\n\n      children.unshift(...this.genLevel(this.level))\n\n      return this.$createElement('div', this.setTextColor(this.isActive && this.color, {\n        staticClass: 'v-treeview-node__root',\n        class: {\n          [this.activeClass]: this.isActive,\n        },\n        on: {\n          click: () => {\n            if (this.openOnClick && this.hasChildren) {\n              this.checkChildren().then(this.open)\n            } else if (this.activatable && !this.disabled) {\n              this.isActive = !this.isActive\n              this.treeview.updateActive(this.key, this.isActive)\n              this.treeview.emitActive()\n            }\n          },\n        },\n      }), children)\n    },\n    genChild (item: any, parentIsDisabled: boolean) {\n      return this.$createElement(VTreeviewNode, {\n        key: getObjectValueByPath(item, this.itemKey),\n        props: {\n          activatable: this.activatable,\n          activeClass: this.activeClass,\n          item,\n          selectable: this.selectable,\n          selectedColor: this.selectedColor,\n          color: this.color,\n          disablePerNode: this.disablePerNode,\n          expandIcon: this.expandIcon,\n          indeterminateIcon: this.indeterminateIcon,\n          offIcon: this.offIcon,\n          onIcon: this.onIcon,\n          loadingIcon: this.loadingIcon,\n          itemKey: this.itemKey,\n          itemText: this.itemText,\n          itemDisabled: this.itemDisabled,\n          itemChildren: this.itemChildren,\n          loadChildren: this.loadChildren,\n          transition: this.transition,\n          openOnClick: this.openOnClick,\n          rounded: this.rounded,\n          shaped: this.shaped,\n          level: this.level + 1,\n          selectionType: this.selectionType,\n          parentIsDisabled,\n        },\n        scopedSlots: this.$scopedSlots,\n      })\n    },\n    genChildrenWrapper () {\n      if (!this.isOpen || !this.children) return null\n\n      const children = [this.children.map(c => this.genChild(c, this.disabled))]\n\n      return this.$createElement('div', {\n        staticClass: 'v-treeview-node__children',\n      }, children)\n    },\n    genTransition () {\n      return this.$createElement(VExpandTransition, [this.genChildrenWrapper()])\n    },\n  },\n\n  render (h): VNode {\n    const children: VNodeChildren = [this.genNode()]\n\n    if (this.transition) children.push(this.genTransition())\n    else children.push(this.genChildrenWrapper())\n\n    return h('div', {\n      staticClass: 'v-treeview-node',\n      class: {\n        'v-treeview-node--leaf': !this.hasChildren,\n        'v-treeview-node--click': this.openOnClick,\n        'v-treeview-node--disabled': this.disabled,\n        'v-treeview-node--rounded': this.rounded,\n        'v-treeview-node--shaped': this.shaped,\n        'v-treeview-node--selected': this.isSelected,\n      },\n      attrs: {\n        'aria-expanded': String(this.isOpen),\n      },\n    }, children)\n  },\n})\n\nexport default VTreeviewNode\n","import { getObjectValueByPath } from '../../../util/helpers'\nimport { TreeviewItemFunction } from 'vuetify/types'\n\nexport function filterTreeItem (item: object, search: string, textKey: string): boolean {\n  const text = getObjectValueByPath(item, textKey)\n\n  return text.toLocaleLowerCase().indexOf(search.toLocaleLowerCase()) > -1\n}\n\nexport function filterTreeItems (\n  filter: TreeviewItemFunction,\n  item: any,\n  search: string,\n  idKey: string,\n  textKey: string,\n  childrenKey: string,\n  excluded: Set<string | number>\n): boolean {\n  if (filter(item, search, textKey)) {\n    return true\n  }\n\n  const children = getObjectValueByPath(item, childrenKey)\n\n  if (children) {\n    let match = false\n    for (let i = 0; i < children.length; i++) {\n      if (filterTreeItems(filter, children[i], search, idKey, textKey, childrenKey, excluded)) {\n        match = true\n      }\n    }\n\n    if (match) return true\n  }\n\n  excluded.add(getObjectValueByPath(item, idKey))\n\n  return false\n}\n","// Styles\nimport './VTreeview.sass'\n\n// Types\nimport { VNode, VNodeChildrenArrayContents, PropType } from 'vue'\nimport { PropValidator } from 'vue/types/options'\nimport { TreeviewItemFunction } from 'vuetify/types'\n\n// Components\nimport VTreeviewNode, { VTreeviewNodeProps } from './VTreeviewNode'\n\n// Mixins\nimport Themeable from '../../mixins/themeable'\nimport { provide as RegistrableProvide } from '../../mixins/registrable'\n\n// Utils\nimport {\n  arrayDiff,\n  deepEqual,\n  getObjectValueByPath,\n} from '../../util/helpers'\nimport mixins from '../../util/mixins'\nimport { consoleWarn } from '../../util/console'\nimport {\n  filterTreeItems,\n  filterTreeItem,\n} from './util/filterTreeItems'\n\ntype VTreeviewNodeInstance = InstanceType<typeof VTreeviewNode>\n\ntype NodeCache = Set<string | number>\ntype NodeArray = (string | number)[]\n\ntype NodeState = {\n  parent: number | string | null\n  children: (number | string)[]\n  vnode: VTreeviewNodeInstance | null\n  isActive: boolean\n  isSelected: boolean\n  isIndeterminate: boolean\n  isOpen: boolean\n  item: any\n}\n\nexport default mixins(\n  RegistrableProvide('treeview'),\n  Themeable\n  /* @vue/component */\n).extend({\n  name: 'v-treeview',\n\n  provide (): object {\n    return { treeview: this }\n  },\n\n  props: {\n    active: {\n      type: Array,\n      default: () => ([]),\n    } as PropValidator<NodeArray>,\n    dense: Boolean,\n    disabled: Boolean,\n    filter: Function as PropType<TreeviewItemFunction>,\n    hoverable: Boolean,\n    items: {\n      type: Array,\n      default: () => ([]),\n    } as PropValidator<any[]>,\n    multipleActive: Boolean,\n    open: {\n      type: Array,\n      default: () => ([]),\n    } as PropValidator<NodeArray>,\n    openAll: Boolean,\n    returnObject: {\n      type: Boolean,\n      default: false, // TODO: Should be true in next major\n    },\n    search: String,\n    value: {\n      type: Array,\n      default: () => ([]),\n    } as PropValidator<NodeArray>,\n    ...VTreeviewNodeProps,\n  },\n\n  data: () => ({\n    level: -1,\n    activeCache: new Set() as NodeCache,\n    nodes: {} as Record<string | number, NodeState>,\n    openCache: new Set() as NodeCache,\n    selectedCache: new Set() as NodeCache,\n  }),\n\n  computed: {\n    excludedItems (): Set<string | number> {\n      const excluded = new Set<string|number>()\n\n      if (!this.search) return excluded\n\n      for (let i = 0; i < this.items.length; i++) {\n        filterTreeItems(\n          this.filter || filterTreeItem,\n          this.items[i],\n          this.search,\n          this.itemKey,\n          this.itemText,\n          this.itemChildren,\n          excluded\n        )\n      }\n\n      return excluded\n    },\n  },\n\n  watch: {\n    items: {\n      handler () {\n        const oldKeys = Object.keys(this.nodes).map(k => getObjectValueByPath(this.nodes[k].item, this.itemKey))\n        const newKeys = this.getKeys(this.items)\n        const diff = arrayDiff(newKeys, oldKeys)\n\n        // We only want to do stuff if items have changed\n        if (!diff.length && newKeys.length < oldKeys.length) return\n\n        // If nodes are removed we need to clear them from this.nodes\n        diff.forEach(k => delete this.nodes[k])\n\n        const oldSelectedCache = [...this.selectedCache]\n        this.selectedCache = new Set()\n        this.activeCache = new Set()\n        this.openCache = new Set()\n        this.buildTree(this.items)\n\n        // Only emit selected if selection has changed\n        // as a result of items changing. This fixes a\n        // potential double emit when selecting a node\n        // with dynamic children\n        if (!deepEqual(oldSelectedCache, [...this.selectedCache])) this.emitSelected()\n      },\n      deep: true,\n    },\n    active (value: (string | number | any)[]) {\n      this.handleNodeCacheWatcher(value, this.activeCache, this.updateActive, this.emitActive)\n    },\n    value (value: (string | number | any)[]) {\n      this.handleNodeCacheWatcher(value, this.selectedCache, this.updateSelected, this.emitSelected)\n    },\n    open (value: (string | number | any)[]) {\n      this.handleNodeCacheWatcher(value, this.openCache, this.updateOpen, this.emitOpen)\n    },\n  },\n\n  created () {\n    const getValue = (key: string | number) => this.returnObject ? getObjectValueByPath(key, this.itemKey) : key\n\n    this.buildTree(this.items)\n\n    for (const value of this.value.map(getValue)) {\n      this.updateSelected(value, true, true)\n    }\n\n    for (const active of this.active.map(getValue)) {\n      this.updateActive(active, true)\n    }\n  },\n\n  mounted () {\n    // Save the developer from themselves\n    if (this.$slots.prepend || this.$slots.append) {\n      consoleWarn('The prepend and append slots require a slot-scope attribute', this)\n    }\n\n    if (this.openAll) {\n      this.updateAll(true)\n    } else {\n      this.open.forEach(key => this.updateOpen(this.returnObject ? getObjectValueByPath(key, this.itemKey) : key, true))\n      this.emitOpen()\n    }\n  },\n\n  methods: {\n    /** @public */\n    updateAll (value: boolean) {\n      Object.keys(this.nodes).forEach(key => this.updateOpen(getObjectValueByPath(this.nodes[key].item, this.itemKey), value))\n      this.emitOpen()\n    },\n    getKeys (items: any[], keys: any[] = []) {\n      for (let i = 0; i < items.length; i++) {\n        const key = getObjectValueByPath(items[i], this.itemKey)\n        keys.push(key)\n        const children = getObjectValueByPath(items[i], this.itemChildren)\n        if (children) {\n          keys.push(...this.getKeys(children))\n        }\n      }\n\n      return keys\n    },\n    buildTree (items: any[], parent: (string | number | null) = null) {\n      for (let i = 0; i < items.length; i++) {\n        const item = items[i]\n        const key = getObjectValueByPath(item, this.itemKey)\n        const children = getObjectValueByPath(item, this.itemChildren) ?? []\n        const oldNode = this.nodes.hasOwnProperty(key) ? this.nodes[key] : {\n          isSelected: false, isIndeterminate: false, isActive: false, isOpen: false, vnode: null,\n        } as NodeState\n\n        const node: any = {\n          vnode: oldNode.vnode,\n          parent,\n          children: children.map((c: any) => getObjectValueByPath(c, this.itemKey)),\n          item,\n        }\n\n        this.buildTree(children, key)\n\n        // This fixed bug with dynamic children resetting selected parent state\n        if (!this.nodes.hasOwnProperty(key) && parent !== null && this.nodes.hasOwnProperty(parent)) {\n          node.isSelected = this.nodes[parent].isSelected\n        } else {\n          node.isSelected = oldNode.isSelected\n          node.isIndeterminate = oldNode.isIndeterminate\n        }\n\n        node.isActive = oldNode.isActive\n        node.isOpen = oldNode.isOpen\n\n        this.nodes[key] = node\n\n        if (children.length && this.selectionType !== 'independent') {\n          const { isSelected, isIndeterminate } = this.calculateState(key, this.nodes)\n\n          node.isSelected = isSelected\n          node.isIndeterminate = isIndeterminate\n        }\n\n        // Don't forget to rebuild cache\n        if (this.nodes[key].isSelected && (this.selectionType === 'independent' || node.children.length === 0)) this.selectedCache.add(key)\n        if (this.nodes[key].isActive) this.activeCache.add(key)\n        if (this.nodes[key].isOpen) this.openCache.add(key)\n\n        this.updateVnodeState(key)\n      }\n    },\n    calculateState (node: string | number, state: Record<string | number, NodeState>) {\n      const children = state[node].children\n      const counts = children.reduce((counts: number[], child: string | number) => {\n        counts[0] += +Boolean(state[child].isSelected)\n        counts[1] += +Boolean(state[child].isIndeterminate)\n\n        return counts\n      }, [0, 0])\n\n      const isSelected = !!children.length && counts[0] === children.length\n      const isIndeterminate = !isSelected && (counts[0] > 0 || counts[1] > 0)\n\n      return {\n        isSelected,\n        isIndeterminate,\n      }\n    },\n    emitOpen () {\n      this.emitNodeCache('update:open', this.openCache)\n    },\n    emitSelected () {\n      this.emitNodeCache('input', this.selectedCache)\n    },\n    emitActive () {\n      this.emitNodeCache('update:active', this.activeCache)\n    },\n    emitNodeCache (event: string, cache: NodeCache) {\n      this.$emit(event, this.returnObject ? [...cache].map(key => this.nodes[key].item) : [...cache])\n    },\n    handleNodeCacheWatcher (value: any[], cache: NodeCache, updateFn: Function, emitFn: Function) {\n      value = this.returnObject ? value.map(v => getObjectValueByPath(v, this.itemKey)) : value\n      const old = [...cache]\n      if (deepEqual(old, value)) return\n\n      old.forEach(key => updateFn(key, false))\n      value.forEach(key => updateFn(key, true))\n\n      emitFn()\n    },\n    getDescendants (key: string | number, descendants: NodeArray = []) {\n      const children = this.nodes[key].children\n\n      descendants.push(...children)\n\n      for (let i = 0; i < children.length; i++) {\n        descendants = this.getDescendants(children[i], descendants)\n      }\n\n      return descendants\n    },\n    getParents (key: string | number) {\n      let parent = this.nodes[key].parent\n\n      const parents = []\n      while (parent !== null) {\n        parents.push(parent)\n        parent = this.nodes[parent].parent\n      }\n\n      return parents\n    },\n    register (node: VTreeviewNodeInstance) {\n      const key = getObjectValueByPath(node.item, this.itemKey)\n      this.nodes[key].vnode = node\n\n      this.updateVnodeState(key)\n    },\n    unregister (node: VTreeviewNodeInstance) {\n      const key = getObjectValueByPath(node.item, this.itemKey)\n      if (this.nodes[key]) this.nodes[key].vnode = null\n    },\n    isParent (key: string | number) {\n      return this.nodes[key].children && this.nodes[key].children.length\n    },\n    updateActive (key: string | number, isActive: boolean) {\n      if (!this.nodes.hasOwnProperty(key)) return\n\n      if (!this.multipleActive) {\n        this.activeCache.forEach(active => {\n          this.nodes[active].isActive = false\n          this.updateVnodeState(active)\n          this.activeCache.delete(active)\n        })\n      }\n\n      const node = this.nodes[key]\n      if (!node) return\n\n      if (isActive) this.activeCache.add(key)\n      else this.activeCache.delete(key)\n\n      node.isActive = isActive\n\n      this.updateVnodeState(key)\n    },\n    updateSelected (key: string | number, isSelected: boolean, isForced = false) {\n      if (!this.nodes.hasOwnProperty(key)) return\n\n      const changed = new Map()\n\n      if (this.selectionType !== 'independent') {\n        for (const descendant of this.getDescendants(key)) {\n          if (!getObjectValueByPath(this.nodes[descendant].item, this.itemDisabled) || isForced) {\n            this.nodes[descendant].isSelected = isSelected\n            this.nodes[descendant].isIndeterminate = false\n            changed.set(descendant, isSelected)\n          }\n        }\n\n        const calculated = this.calculateState(key, this.nodes)\n        this.nodes[key].isSelected = isSelected\n        this.nodes[key].isIndeterminate = calculated.isIndeterminate\n        changed.set(key, isSelected)\n\n        for (const parent of this.getParents(key)) {\n          const calculated = this.calculateState(parent, this.nodes)\n          this.nodes[parent].isSelected = calculated.isSelected\n          this.nodes[parent].isIndeterminate = calculated.isIndeterminate\n          changed.set(parent, calculated.isSelected)\n        }\n      } else {\n        this.nodes[key].isSelected = isSelected\n        this.nodes[key].isIndeterminate = false\n        changed.set(key, isSelected)\n      }\n\n      for (const [key, value] of changed.entries()) {\n        this.updateVnodeState(key)\n\n        if (this.selectionType === 'leaf' && this.isParent(key)) continue\n\n        value === true ? this.selectedCache.add(key) : this.selectedCache.delete(key)\n      }\n    },\n    updateOpen (key: string | number, isOpen: boolean) {\n      if (!this.nodes.hasOwnProperty(key)) return\n\n      const node = this.nodes[key]\n      const children = getObjectValueByPath(node.item, this.itemChildren)\n\n      if (children && !children.length && node.vnode && !node.vnode.hasLoaded) {\n        node.vnode.checkChildren().then(() => this.updateOpen(key, isOpen))\n      } else if (children && children.length) {\n        node.isOpen = isOpen\n\n        node.isOpen ? this.openCache.add(key) : this.openCache.delete(key)\n\n        this.updateVnodeState(key)\n      }\n    },\n    updateVnodeState (key: string | number) {\n      const node = this.nodes[key]\n\n      if (node && node.vnode) {\n        node.vnode.isSelected = node.isSelected\n        node.vnode.isIndeterminate = node.isIndeterminate\n        node.vnode.isActive = node.isActive\n        node.vnode.isOpen = node.isOpen\n      }\n    },\n    isExcluded (key: string | number) {\n      return !!this.search && this.excludedItems.has(key)\n    },\n  },\n\n  render (h): VNode {\n    const children: VNodeChildrenArrayContents = this.items.length\n      ? this.items.filter(item => {\n        return !this.isExcluded(getObjectValueByPath(item, this.itemKey))\n      }).map(item => {\n        const genChild = VTreeviewNode.options.methods.genChild.bind(this)\n\n        return genChild(item, this.disabled || getObjectValueByPath(item, this.itemDisabled))\n      })\n      /* istanbul ignore next */\n      : this.$slots.default! // TODO: remove type annotation with TS 3.2\n\n    return h('div', {\n      staticClass: 'v-treeview',\n      class: {\n        'v-treeview--hoverable': this.hoverable,\n        'v-treeview--dense': this.dense,\n        ...this.themeClasses,\n      },\n    }, children)\n  },\n})\n"],"sourceRoot":""}