Index: trip-planner-front/node_modules/primeng/fesm2020/primeng-tree.mjs
===================================================================
--- trip-planner-front/node_modules/primeng/fesm2020/primeng-tree.mjs	(revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
+++ trip-planner-front/node_modules/primeng/fesm2020/primeng-tree.mjs	(revision 59329aad30ff25ec5095bb7ffb78ddb59b7dc111)
@@ -0,0 +1,1272 @@
+import * as i0 from '@angular/core';
+import { forwardRef, Component, ViewEncapsulation, Inject, Input, EventEmitter, ChangeDetectionStrategy, Optional, Output, ContentChildren, ViewChild, NgModule } from '@angular/core';
+import * as i4 from '@angular/cdk/scrolling';
+import { CdkVirtualScrollViewport, ScrollingModule } from '@angular/cdk/scrolling';
+import * as i1 from '@angular/common';
+import { CommonModule } from '@angular/common';
+import * as i3 from 'primeng/api';
+import { TranslationKeys, PrimeTemplate, SharedModule } from 'primeng/api';
+import { ObjectUtils } from 'primeng/utils';
+import { DomHandler } from 'primeng/dom';
+import * as i2 from 'primeng/ripple';
+import { RippleModule } from 'primeng/ripple';
+
+class UITreeNode {
+    constructor(tree) {
+        this.tree = tree;
+    }
+    ngOnInit() {
+        this.node.parent = this.parentNode;
+        if (this.parentNode) {
+            this.tree.syncNodeOption(this.node, this.tree.value, 'parent', this.tree.getNodeWithKey(this.parentNode.key, this.tree.value));
+        }
+    }
+    getIcon() {
+        let icon;
+        if (this.node.icon)
+            icon = this.node.icon;
+        else
+            icon = this.node.expanded && this.node.children && this.node.children.length ? this.node.expandedIcon : this.node.collapsedIcon;
+        return UITreeNode.ICON_CLASS + ' ' + icon;
+    }
+    isLeaf() {
+        return this.tree.isNodeLeaf(this.node);
+    }
+    toggle(event) {
+        if (this.node.expanded)
+            this.collapse(event);
+        else
+            this.expand(event);
+    }
+    expand(event) {
+        this.node.expanded = true;
+        if (this.tree.virtualScroll) {
+            this.tree.updateSerializedValue();
+        }
+        this.tree.onNodeExpand.emit({ originalEvent: event, node: this.node });
+    }
+    collapse(event) {
+        this.node.expanded = false;
+        if (this.tree.virtualScroll) {
+            this.tree.updateSerializedValue();
+        }
+        this.tree.onNodeCollapse.emit({ originalEvent: event, node: this.node });
+    }
+    onNodeClick(event) {
+        this.tree.onNodeClick(event, this.node);
+    }
+    onNodeKeydown(event) {
+        if (event.which === 13) {
+            this.tree.onNodeClick(event, this.node);
+        }
+    }
+    onNodeTouchEnd() {
+        this.tree.onNodeTouchEnd();
+    }
+    onNodeRightClick(event) {
+        this.tree.onNodeRightClick(event, this.node);
+    }
+    isSelected() {
+        return this.tree.isSelected(this.node);
+    }
+    onDropPoint(event, position) {
+        event.preventDefault();
+        let dragNode = this.tree.dragNode;
+        let dragNodeIndex = this.tree.dragNodeIndex;
+        let dragNodeScope = this.tree.dragNodeScope;
+        let isValidDropPointIndex = this.tree.dragNodeTree === this.tree ? (position === 1 || dragNodeIndex !== this.index - 1) : true;
+        if (this.tree.allowDrop(dragNode, this.node, dragNodeScope) && isValidDropPointIndex) {
+            let dropParams = { ...this.createDropPointEventMetadata(position) };
+            if (this.tree.validateDrop) {
+                this.tree.onNodeDrop.emit({
+                    originalEvent: event,
+                    dragNode: dragNode,
+                    dropNode: this.node,
+                    index: this.index,
+                    accept: () => {
+                        this.processPointDrop(dropParams);
+                    }
+                });
+            }
+            else {
+                this.processPointDrop(dropParams);
+                this.tree.onNodeDrop.emit({
+                    originalEvent: event,
+                    dragNode: dragNode,
+                    dropNode: this.node,
+                    index: this.index
+                });
+            }
+        }
+        this.draghoverPrev = false;
+        this.draghoverNext = false;
+    }
+    processPointDrop(event) {
+        let newNodeList = event.dropNode.parent ? event.dropNode.parent.children : this.tree.value;
+        event.dragNodeSubNodes.splice(event.dragNodeIndex, 1);
+        let dropIndex = this.index;
+        if (event.position < 0) {
+            dropIndex = (event.dragNodeSubNodes === newNodeList) ? ((event.dragNodeIndex > event.index) ? event.index : event.index - 1) : event.index;
+            newNodeList.splice(dropIndex, 0, event.dragNode);
+        }
+        else {
+            dropIndex = newNodeList.length;
+            newNodeList.push(event.dragNode);
+        }
+        this.tree.dragDropService.stopDrag({
+            node: event.dragNode,
+            subNodes: event.dropNode.parent ? event.dropNode.parent.children : this.tree.value,
+            index: event.dragNodeIndex
+        });
+    }
+    createDropPointEventMetadata(position) {
+        return {
+            dragNode: this.tree.dragNode,
+            dragNodeIndex: this.tree.dragNodeIndex,
+            dragNodeSubNodes: this.tree.dragNodeSubNodes,
+            dropNode: this.node,
+            index: this.index,
+            position: position
+        };
+    }
+    onDropPointDragOver(event) {
+        event.dataTransfer.dropEffect = 'move';
+        event.preventDefault();
+    }
+    onDropPointDragEnter(event, position) {
+        if (this.tree.allowDrop(this.tree.dragNode, this.node, this.tree.dragNodeScope)) {
+            if (position < 0)
+                this.draghoverPrev = true;
+            else
+                this.draghoverNext = true;
+        }
+    }
+    onDropPointDragLeave(event) {
+        this.draghoverPrev = false;
+        this.draghoverNext = false;
+    }
+    onDragStart(event) {
+        if (this.tree.draggableNodes && this.node.draggable !== false) {
+            event.dataTransfer.setData("text", "data");
+            this.tree.dragDropService.startDrag({
+                tree: this,
+                node: this.node,
+                subNodes: this.node.parent ? this.node.parent.children : this.tree.value,
+                index: this.index,
+                scope: this.tree.draggableScope
+            });
+        }
+        else {
+            event.preventDefault();
+        }
+    }
+    onDragStop(event) {
+        this.tree.dragDropService.stopDrag({
+            node: this.node,
+            subNodes: this.node.parent ? this.node.parent.children : this.tree.value,
+            index: this.index
+        });
+    }
+    onDropNodeDragOver(event) {
+        event.dataTransfer.dropEffect = 'move';
+        if (this.tree.droppableNodes) {
+            event.preventDefault();
+            event.stopPropagation();
+        }
+    }
+    onDropNode(event) {
+        if (this.tree.droppableNodes && this.node.droppable !== false) {
+            let dragNode = this.tree.dragNode;
+            if (this.tree.allowDrop(dragNode, this.node, this.tree.dragNodeScope)) {
+                let dropParams = { ...this.createDropNodeEventMetadata() };
+                if (this.tree.validateDrop) {
+                    this.tree.onNodeDrop.emit({
+                        originalEvent: event,
+                        dragNode: dragNode,
+                        dropNode: this.node,
+                        index: this.index,
+                        accept: () => {
+                            this.processNodeDrop(dropParams);
+                        }
+                    });
+                }
+                else {
+                    this.processNodeDrop(dropParams);
+                    this.tree.onNodeDrop.emit({
+                        originalEvent: event,
+                        dragNode: dragNode,
+                        dropNode: this.node,
+                        index: this.index
+                    });
+                }
+            }
+        }
+        event.preventDefault();
+        event.stopPropagation();
+        this.draghoverNode = false;
+    }
+    createDropNodeEventMetadata() {
+        return {
+            dragNode: this.tree.dragNode,
+            dragNodeIndex: this.tree.dragNodeIndex,
+            dragNodeSubNodes: this.tree.dragNodeSubNodes,
+            dropNode: this.node
+        };
+    }
+    processNodeDrop(event) {
+        let dragNodeIndex = event.dragNodeIndex;
+        event.dragNodeSubNodes.splice(dragNodeIndex, 1);
+        if (event.dropNode.children)
+            event.dropNode.children.push(event.dragNode);
+        else
+            event.dropNode.children = [event.dragNode];
+        this.tree.dragDropService.stopDrag({
+            node: event.dragNode,
+            subNodes: event.dropNode.parent ? event.dropNode.parent.children : this.tree.value,
+            index: dragNodeIndex
+        });
+    }
+    onDropNodeDragEnter(event) {
+        if (this.tree.droppableNodes && this.node.droppable !== false && this.tree.allowDrop(this.tree.dragNode, this.node, this.tree.dragNodeScope)) {
+            this.draghoverNode = true;
+        }
+    }
+    onDropNodeDragLeave(event) {
+        if (this.tree.droppableNodes) {
+            let rect = event.currentTarget.getBoundingClientRect();
+            if (event.x > rect.left + rect.width || event.x < rect.left || event.y >= Math.floor(rect.top + rect.height) || event.y < rect.top) {
+                this.draghoverNode = false;
+            }
+        }
+    }
+    onKeyDown(event) {
+        const nodeElement = event.target.parentElement.parentElement;
+        if (nodeElement.nodeName !== 'P-TREENODE' || (this.tree.contextMenu && this.tree.contextMenu.containerViewChild.nativeElement.style.display === 'block')) {
+            return;
+        }
+        switch (event.which) {
+            //down arrow
+            case 40:
+                const listElement = (this.tree.droppableNodes) ? nodeElement.children[1].children[1] : nodeElement.children[0].children[1];
+                if (listElement && listElement.children.length > 0) {
+                    this.focusNode(listElement.children[0]);
+                }
+                else {
+                    const nextNodeElement = nodeElement.nextElementSibling;
+                    if (nextNodeElement) {
+                        this.focusNode(nextNodeElement);
+                    }
+                    else {
+                        let nextSiblingAncestor = this.findNextSiblingOfAncestor(nodeElement);
+                        if (nextSiblingAncestor) {
+                            this.focusNode(nextSiblingAncestor);
+                        }
+                    }
+                }
+                event.preventDefault();
+                break;
+            //up arrow
+            case 38:
+                if (nodeElement.previousElementSibling) {
+                    this.focusNode(this.findLastVisibleDescendant(nodeElement.previousElementSibling));
+                }
+                else {
+                    let parentNodeElement = this.getParentNodeElement(nodeElement);
+                    if (parentNodeElement) {
+                        this.focusNode(parentNodeElement);
+                    }
+                }
+                event.preventDefault();
+                break;
+            //right arrow
+            case 39:
+                if (!this.node.expanded && !this.tree.isNodeLeaf(this.node)) {
+                    this.expand(event);
+                }
+                event.preventDefault();
+                break;
+            //left arrow
+            case 37:
+                if (this.node.expanded) {
+                    this.collapse(event);
+                }
+                else {
+                    let parentNodeElement = this.getParentNodeElement(nodeElement);
+                    if (parentNodeElement) {
+                        this.focusNode(parentNodeElement);
+                    }
+                }
+                event.preventDefault();
+                break;
+            //enter
+            case 13:
+                this.tree.onNodeClick(event, this.node);
+                event.preventDefault();
+                break;
+            default:
+                //no op
+                break;
+        }
+    }
+    findNextSiblingOfAncestor(nodeElement) {
+        let parentNodeElement = this.getParentNodeElement(nodeElement);
+        if (parentNodeElement) {
+            if (parentNodeElement.nextElementSibling)
+                return parentNodeElement.nextElementSibling;
+            else
+                return this.findNextSiblingOfAncestor(parentNodeElement);
+        }
+        else {
+            return null;
+        }
+    }
+    findLastVisibleDescendant(nodeElement) {
+        const listElement = Array.from(nodeElement.children).find(el => DomHandler.hasClass(el, 'p-treenode'));
+        const childrenListElement = listElement.children[1];
+        if (childrenListElement && childrenListElement.children.length > 0) {
+            const lastChildElement = childrenListElement.children[childrenListElement.children.length - 1];
+            return this.findLastVisibleDescendant(lastChildElement);
+        }
+        else {
+            return nodeElement;
+        }
+    }
+    getParentNodeElement(nodeElement) {
+        const parentNodeElement = nodeElement.parentElement.parentElement.parentElement;
+        return parentNodeElement.tagName === 'P-TREENODE' ? parentNodeElement : null;
+    }
+    focusNode(element) {
+        if (this.tree.droppableNodes)
+            element.children[1].children[0].focus();
+        else
+            element.children[0].children[0].focus();
+    }
+}
+UITreeNode.ICON_CLASS = 'p-treenode-icon ';
+UITreeNode.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "13.0.0", ngImport: i0, type: UITreeNode, deps: [{ token: forwardRef(() => Tree) }], target: i0.ɵɵFactoryTarget.Component });
+UITreeNode.ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: "12.0.0", version: "13.0.0", type: UITreeNode, selector: "p-treeNode", inputs: { rowNode: "rowNode", node: "node", parentNode: "parentNode", root: "root", index: "index", firstChild: "firstChild", lastChild: "lastChild", level: "level", indentation: "indentation" }, host: { classAttribute: "p-element" }, ngImport: i0, template: `
+        <ng-template [ngIf]="node">
+            <li *ngIf="tree.droppableNodes" class="p-treenode-droppoint" [ngClass]="{'p-treenode-droppoint-active':draghoverPrev}"
+            (drop)="onDropPoint($event,-1)" (dragover)="onDropPointDragOver($event)" (dragenter)="onDropPointDragEnter($event,-1)" (dragleave)="onDropPointDragLeave($event)"></li>
+            <li *ngIf="!tree.horizontal" [ngClass]="['p-treenode',node.styleClass||'', isLeaf() ? 'p-treenode-leaf': '']">
+                <div class="p-treenode-content" [style.paddingLeft]="(level * indentation)  + 'rem'" (click)="onNodeClick($event)" (contextmenu)="onNodeRightClick($event)" (touchend)="onNodeTouchEnd()"
+                    (drop)="onDropNode($event)" (dragover)="onDropNodeDragOver($event)" (dragenter)="onDropNodeDragEnter($event)" (dragleave)="onDropNodeDragLeave($event)"
+                    [draggable]="tree.draggableNodes" (dragstart)="onDragStart($event)" (dragend)="onDragStop($event)" [attr.tabindex]="0"
+                    [ngClass]="{'p-treenode-selectable':tree.selectionMode && node.selectable !== false,'p-treenode-dragover':draghoverNode, 'p-highlight':isSelected()}" role="treeitem"
+                    (keydown)="onKeyDown($event)" [attr.aria-posinset]="this.index + 1" [attr.aria-expanded]="this.node.expanded" [attr.aria-selected]="isSelected()" [attr.aria-label]="node.label">
+                    <button type="button" [attr.aria-label]="tree.togglerAriaLabel" class="p-tree-toggler p-link" (click)="toggle($event)" pRipple tabindex="-1">
+                        <span class="p-tree-toggler-icon pi pi-fw" [ngClass]="{'pi-chevron-right':!node.expanded,'pi-chevron-down':node.expanded}"></span>
+                    </button>
+                    <div class="p-checkbox p-component" [ngClass]="{'p-checkbox-disabled': node.selectable === false}" *ngIf="tree.selectionMode == 'checkbox'" [attr.aria-checked]="isSelected()">
+                        <div class="p-checkbox-box" [ngClass]="{'p-highlight': isSelected(), 'p-indeterminate': node.partialSelected}">
+                            <span class="p-checkbox-icon pi" [ngClass]="{'pi-check':isSelected(),'pi-minus':node.partialSelected}"></span>
+                        </div>
+                    </div>
+                    <span [class]="getIcon()" *ngIf="node.icon||node.expandedIcon||node.collapsedIcon"></span>
+                    <span class="p-treenode-label">
+                            <span *ngIf="!tree.getTemplateForNode(node)">{{node.label}}</span>
+                            <span *ngIf="tree.getTemplateForNode(node)">
+                                <ng-container *ngTemplateOutlet="tree.getTemplateForNode(node); context: {$implicit: node}"></ng-container>
+                            </span>
+                    </span>
+                </div>
+                <ul class="p-treenode-children" style="display: none;" *ngIf="!tree.virtualScroll && node.children && node.expanded" [style.display]="node.expanded ? 'block' : 'none'" role="group">
+                    <p-treeNode *ngFor="let childNode of node.children;let firstChild=first;let lastChild=last; let index=index; trackBy: tree.trackBy" [node]="childNode" [parentNode]="node"
+                        [firstChild]="firstChild" [lastChild]="lastChild" [index]="index" [style.height.px]="tree.virtualNodeHeight" [level]="level + 1"></p-treeNode>
+                </ul>
+            </li>
+            <li *ngIf="tree.droppableNodes&&lastChild" class="p-treenode-droppoint" [ngClass]="{'p-treenode-droppoint-active':draghoverNext}"
+            (drop)="onDropPoint($event,1)" (dragover)="onDropPointDragOver($event)" (dragenter)="onDropPointDragEnter($event,1)" (dragleave)="onDropPointDragLeave($event)"></li>
+            <table *ngIf="tree.horizontal" [class]="node.styleClass">
+                <tbody>
+                    <tr>
+                        <td class="p-treenode-connector" *ngIf="!root">
+                            <table class="p-treenode-connector-table">
+                                <tbody>
+                                    <tr>
+                                        <td [ngClass]="{'p-treenode-connector-line':!firstChild}"></td>
+                                    </tr>
+                                    <tr>
+                                        <td [ngClass]="{'p-treenode-connector-line':!lastChild}"></td>
+                                    </tr>
+                                </tbody>
+                            </table>
+                        </td>
+                        <td class="p-treenode" [ngClass]="{'p-treenode-collapsed':!node.expanded}">
+                            <div class="p-treenode-content" tabindex="0" [ngClass]="{'p-treenode-selectable':tree.selectionMode,'p-highlight':isSelected()}" (click)="onNodeClick($event)" (contextmenu)="onNodeRightClick($event)"
+                                (touchend)="onNodeTouchEnd()" (keydown)="onNodeKeydown($event)">
+                                <span [attr.aria-label]="tree.togglerAriaLabel" class="p-tree-toggler pi pi-fw" [ngClass]="{'pi-plus':!node.expanded,'pi-minus':node.expanded}" *ngIf="!isLeaf()" (click)="toggle($event)"></span>
+                                <span [class]="getIcon()" *ngIf="node.icon||node.expandedIcon||node.collapsedIcon"></span>
+                                <span class="p-treenode-label">
+                                    <span *ngIf="!tree.getTemplateForNode(node)">{{node.label}}</span>
+                                    <span *ngIf="tree.getTemplateForNode(node)">
+                                        <ng-container *ngTemplateOutlet="tree.getTemplateForNode(node); context: {$implicit: node}"></ng-container>
+                                    </span>
+                                </span>
+                            </div>
+                        </td>
+                        <td class="p-treenode-children-container" *ngIf="node.children && node.expanded" [style.display]="node.expanded ? 'table-cell' : 'none'">
+                            <div class="p-treenode-children">
+                                <p-treeNode *ngFor="let childNode of node.children;let firstChild=first;let lastChild=last; trackBy: tree.trackBy" [node]="childNode"
+                                        [firstChild]="firstChild" [lastChild]="lastChild"></p-treeNode>
+                            </div>
+                        </td>
+                    </tr>
+                </tbody>
+            </table>
+        </ng-template>
+    `, isInline: true, components: [{ type: UITreeNode, selector: "p-treeNode", inputs: ["rowNode", "node", "parentNode", "root", "index", "firstChild", "lastChild", "level", "indentation"] }], directives: [{ type: i1.NgIf, selector: "[ngIf]", inputs: ["ngIf", "ngIfThen", "ngIfElse"] }, { type: i1.NgClass, selector: "[ngClass]", inputs: ["class", "ngClass"] }, { type: i2.Ripple, selector: "[pRipple]" }, { type: i1.NgTemplateOutlet, selector: "[ngTemplateOutlet]", inputs: ["ngTemplateOutletContext", "ngTemplateOutlet"] }, { type: i1.NgForOf, selector: "[ngFor][ngForOf]", inputs: ["ngForOf", "ngForTrackBy", "ngForTemplate"] }], encapsulation: i0.ViewEncapsulation.None });
+i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "13.0.0", ngImport: i0, type: UITreeNode, decorators: [{
+            type: Component,
+            args: [{
+                    selector: 'p-treeNode',
+                    template: `
+        <ng-template [ngIf]="node">
+            <li *ngIf="tree.droppableNodes" class="p-treenode-droppoint" [ngClass]="{'p-treenode-droppoint-active':draghoverPrev}"
+            (drop)="onDropPoint($event,-1)" (dragover)="onDropPointDragOver($event)" (dragenter)="onDropPointDragEnter($event,-1)" (dragleave)="onDropPointDragLeave($event)"></li>
+            <li *ngIf="!tree.horizontal" [ngClass]="['p-treenode',node.styleClass||'', isLeaf() ? 'p-treenode-leaf': '']">
+                <div class="p-treenode-content" [style.paddingLeft]="(level * indentation)  + 'rem'" (click)="onNodeClick($event)" (contextmenu)="onNodeRightClick($event)" (touchend)="onNodeTouchEnd()"
+                    (drop)="onDropNode($event)" (dragover)="onDropNodeDragOver($event)" (dragenter)="onDropNodeDragEnter($event)" (dragleave)="onDropNodeDragLeave($event)"
+                    [draggable]="tree.draggableNodes" (dragstart)="onDragStart($event)" (dragend)="onDragStop($event)" [attr.tabindex]="0"
+                    [ngClass]="{'p-treenode-selectable':tree.selectionMode && node.selectable !== false,'p-treenode-dragover':draghoverNode, 'p-highlight':isSelected()}" role="treeitem"
+                    (keydown)="onKeyDown($event)" [attr.aria-posinset]="this.index + 1" [attr.aria-expanded]="this.node.expanded" [attr.aria-selected]="isSelected()" [attr.aria-label]="node.label">
+                    <button type="button" [attr.aria-label]="tree.togglerAriaLabel" class="p-tree-toggler p-link" (click)="toggle($event)" pRipple tabindex="-1">
+                        <span class="p-tree-toggler-icon pi pi-fw" [ngClass]="{'pi-chevron-right':!node.expanded,'pi-chevron-down':node.expanded}"></span>
+                    </button>
+                    <div class="p-checkbox p-component" [ngClass]="{'p-checkbox-disabled': node.selectable === false}" *ngIf="tree.selectionMode == 'checkbox'" [attr.aria-checked]="isSelected()">
+                        <div class="p-checkbox-box" [ngClass]="{'p-highlight': isSelected(), 'p-indeterminate': node.partialSelected}">
+                            <span class="p-checkbox-icon pi" [ngClass]="{'pi-check':isSelected(),'pi-minus':node.partialSelected}"></span>
+                        </div>
+                    </div>
+                    <span [class]="getIcon()" *ngIf="node.icon||node.expandedIcon||node.collapsedIcon"></span>
+                    <span class="p-treenode-label">
+                            <span *ngIf="!tree.getTemplateForNode(node)">{{node.label}}</span>
+                            <span *ngIf="tree.getTemplateForNode(node)">
+                                <ng-container *ngTemplateOutlet="tree.getTemplateForNode(node); context: {$implicit: node}"></ng-container>
+                            </span>
+                    </span>
+                </div>
+                <ul class="p-treenode-children" style="display: none;" *ngIf="!tree.virtualScroll && node.children && node.expanded" [style.display]="node.expanded ? 'block' : 'none'" role="group">
+                    <p-treeNode *ngFor="let childNode of node.children;let firstChild=first;let lastChild=last; let index=index; trackBy: tree.trackBy" [node]="childNode" [parentNode]="node"
+                        [firstChild]="firstChild" [lastChild]="lastChild" [index]="index" [style.height.px]="tree.virtualNodeHeight" [level]="level + 1"></p-treeNode>
+                </ul>
+            </li>
+            <li *ngIf="tree.droppableNodes&&lastChild" class="p-treenode-droppoint" [ngClass]="{'p-treenode-droppoint-active':draghoverNext}"
+            (drop)="onDropPoint($event,1)" (dragover)="onDropPointDragOver($event)" (dragenter)="onDropPointDragEnter($event,1)" (dragleave)="onDropPointDragLeave($event)"></li>
+            <table *ngIf="tree.horizontal" [class]="node.styleClass">
+                <tbody>
+                    <tr>
+                        <td class="p-treenode-connector" *ngIf="!root">
+                            <table class="p-treenode-connector-table">
+                                <tbody>
+                                    <tr>
+                                        <td [ngClass]="{'p-treenode-connector-line':!firstChild}"></td>
+                                    </tr>
+                                    <tr>
+                                        <td [ngClass]="{'p-treenode-connector-line':!lastChild}"></td>
+                                    </tr>
+                                </tbody>
+                            </table>
+                        </td>
+                        <td class="p-treenode" [ngClass]="{'p-treenode-collapsed':!node.expanded}">
+                            <div class="p-treenode-content" tabindex="0" [ngClass]="{'p-treenode-selectable':tree.selectionMode,'p-highlight':isSelected()}" (click)="onNodeClick($event)" (contextmenu)="onNodeRightClick($event)"
+                                (touchend)="onNodeTouchEnd()" (keydown)="onNodeKeydown($event)">
+                                <span [attr.aria-label]="tree.togglerAriaLabel" class="p-tree-toggler pi pi-fw" [ngClass]="{'pi-plus':!node.expanded,'pi-minus':node.expanded}" *ngIf="!isLeaf()" (click)="toggle($event)"></span>
+                                <span [class]="getIcon()" *ngIf="node.icon||node.expandedIcon||node.collapsedIcon"></span>
+                                <span class="p-treenode-label">
+                                    <span *ngIf="!tree.getTemplateForNode(node)">{{node.label}}</span>
+                                    <span *ngIf="tree.getTemplateForNode(node)">
+                                        <ng-container *ngTemplateOutlet="tree.getTemplateForNode(node); context: {$implicit: node}"></ng-container>
+                                    </span>
+                                </span>
+                            </div>
+                        </td>
+                        <td class="p-treenode-children-container" *ngIf="node.children && node.expanded" [style.display]="node.expanded ? 'table-cell' : 'none'">
+                            <div class="p-treenode-children">
+                                <p-treeNode *ngFor="let childNode of node.children;let firstChild=first;let lastChild=last; trackBy: tree.trackBy" [node]="childNode"
+                                        [firstChild]="firstChild" [lastChild]="lastChild"></p-treeNode>
+                            </div>
+                        </td>
+                    </tr>
+                </tbody>
+            </table>
+        </ng-template>
+    `,
+                    encapsulation: ViewEncapsulation.None,
+                    host: {
+                        'class': 'p-element'
+                    }
+                }]
+        }], ctorParameters: function () { return [{ type: undefined, decorators: [{
+                    type: Inject,
+                    args: [forwardRef(() => Tree)]
+                }] }]; }, propDecorators: { rowNode: [{
+                type: Input
+            }], node: [{
+                type: Input
+            }], parentNode: [{
+                type: Input
+            }], root: [{
+                type: Input
+            }], index: [{
+                type: Input
+            }], firstChild: [{
+                type: Input
+            }], lastChild: [{
+                type: Input
+            }], level: [{
+                type: Input
+            }], indentation: [{
+                type: Input
+            }] } });
+class Tree {
+    constructor(el, dragDropService, config) {
+        this.el = el;
+        this.dragDropService = dragDropService;
+        this.config = config;
+        this.selectionChange = new EventEmitter();
+        this.onNodeSelect = new EventEmitter();
+        this.onNodeUnselect = new EventEmitter();
+        this.onNodeExpand = new EventEmitter();
+        this.onNodeCollapse = new EventEmitter();
+        this.onNodeContextMenuSelect = new EventEmitter();
+        this.onNodeDrop = new EventEmitter();
+        this.layout = 'vertical';
+        this.metaKeySelection = true;
+        this.propagateSelectionUp = true;
+        this.propagateSelectionDown = true;
+        this.loadingIcon = 'pi pi-spinner';
+        this.emptyMessage = '';
+        this.filterBy = 'label';
+        this.filterMode = 'lenient';
+        this.indentation = 1.5;
+        this.trackBy = (index, item) => item;
+        this.onFilter = new EventEmitter();
+    }
+    ngOnInit() {
+        if (this.droppableNodes) {
+            this.dragStartSubscription = this.dragDropService.dragStart$.subscribe(event => {
+                this.dragNodeTree = event.tree;
+                this.dragNode = event.node;
+                this.dragNodeSubNodes = event.subNodes;
+                this.dragNodeIndex = event.index;
+                this.dragNodeScope = event.scope;
+            });
+            this.dragStopSubscription = this.dragDropService.dragStop$.subscribe(event => {
+                this.dragNodeTree = null;
+                this.dragNode = null;
+                this.dragNodeSubNodes = null;
+                this.dragNodeIndex = null;
+                this.dragNodeScope = null;
+                this.dragHover = false;
+            });
+        }
+    }
+    ngOnChanges(simpleChange) {
+        if (simpleChange.value) {
+            this.updateSerializedValue();
+        }
+        if (simpleChange.scrollHeight && this.virtualScrollBody) {
+            this.virtualScrollBody.ngOnInit();
+        }
+    }
+    get horizontal() {
+        return this.layout == 'horizontal';
+    }
+    get emptyMessageLabel() {
+        return this.emptyMessage || this.config.getTranslation(TranslationKeys.EMPTY_MESSAGE);
+    }
+    ngAfterContentInit() {
+        if (this.templates.length) {
+            this.templateMap = {};
+        }
+        this.templates.forEach((item) => {
+            switch (item.getType()) {
+                case 'header':
+                    this.headerTemplate = item.template;
+                    break;
+                case 'empty':
+                    this.emptyMessageTemplate = item.template;
+                    break;
+                case 'footer':
+                    this.footerTemplate = item.template;
+                    break;
+                default:
+                    this.templateMap[item.name] = item.template;
+                    break;
+            }
+        });
+    }
+    updateSerializedValue() {
+        this.serializedValue = [];
+        this.serializeNodes(null, this.getRootNode(), 0, true);
+    }
+    serializeNodes(parent, nodes, level, visible) {
+        if (nodes && nodes.length) {
+            for (let node of nodes) {
+                node.parent = parent;
+                const rowNode = {
+                    node: node,
+                    parent: parent,
+                    level: level,
+                    visible: visible && (parent ? parent.expanded : true)
+                };
+                this.serializedValue.push(rowNode);
+                if (rowNode.visible && node.expanded) {
+                    this.serializeNodes(node, node.children, level + 1, rowNode.visible);
+                }
+            }
+        }
+    }
+    onNodeClick(event, node) {
+        let eventTarget = event.target;
+        if (DomHandler.hasClass(eventTarget, 'p-tree-toggler') || DomHandler.hasClass(eventTarget, 'p-tree-toggler-icon')) {
+            return;
+        }
+        else if (this.selectionMode) {
+            if (node.selectable === false) {
+                return;
+            }
+            if (this.hasFilteredNodes()) {
+                node = this.getNodeWithKey(node.key, this.value);
+                if (!node) {
+                    return;
+                }
+            }
+            let index = this.findIndexInSelection(node);
+            let selected = (index >= 0);
+            if (this.isCheckboxSelectionMode()) {
+                if (selected) {
+                    if (this.propagateSelectionDown)
+                        this.propagateDown(node, false);
+                    else
+                        this.selection = this.selection.filter((val, i) => i != index);
+                    if (this.propagateSelectionUp && node.parent) {
+                        this.propagateUp(node.parent, false);
+                    }
+                    this.selectionChange.emit(this.selection);
+                    this.onNodeUnselect.emit({ originalEvent: event, node: node });
+                }
+                else {
+                    if (this.propagateSelectionDown)
+                        this.propagateDown(node, true);
+                    else
+                        this.selection = [...this.selection || [], node];
+                    if (this.propagateSelectionUp && node.parent) {
+                        this.propagateUp(node.parent, true);
+                    }
+                    this.selectionChange.emit(this.selection);
+                    this.onNodeSelect.emit({ originalEvent: event, node: node });
+                }
+            }
+            else {
+                let metaSelection = this.nodeTouched ? false : this.metaKeySelection;
+                if (metaSelection) {
+                    let metaKey = (event.metaKey || event.ctrlKey);
+                    if (selected && metaKey) {
+                        if (this.isSingleSelectionMode()) {
+                            this.selectionChange.emit(null);
+                        }
+                        else {
+                            this.selection = this.selection.filter((val, i) => i != index);
+                            this.selectionChange.emit(this.selection);
+                        }
+                        this.onNodeUnselect.emit({ originalEvent: event, node: node });
+                    }
+                    else {
+                        if (this.isSingleSelectionMode()) {
+                            this.selectionChange.emit(node);
+                        }
+                        else if (this.isMultipleSelectionMode()) {
+                            this.selection = (!metaKey) ? [] : this.selection || [];
+                            this.selection = [...this.selection, node];
+                            this.selectionChange.emit(this.selection);
+                        }
+                        this.onNodeSelect.emit({ originalEvent: event, node: node });
+                    }
+                }
+                else {
+                    if (this.isSingleSelectionMode()) {
+                        if (selected) {
+                            this.selection = null;
+                            this.onNodeUnselect.emit({ originalEvent: event, node: node });
+                        }
+                        else {
+                            this.selection = node;
+                            this.onNodeSelect.emit({ originalEvent: event, node: node });
+                        }
+                    }
+                    else {
+                        if (selected) {
+                            this.selection = this.selection.filter((val, i) => i != index);
+                            this.onNodeUnselect.emit({ originalEvent: event, node: node });
+                        }
+                        else {
+                            this.selection = [...this.selection || [], node];
+                            this.onNodeSelect.emit({ originalEvent: event, node: node });
+                        }
+                    }
+                    this.selectionChange.emit(this.selection);
+                }
+            }
+        }
+        this.nodeTouched = false;
+    }
+    onNodeTouchEnd() {
+        this.nodeTouched = true;
+    }
+    onNodeRightClick(event, node) {
+        if (this.contextMenu) {
+            let eventTarget = event.target;
+            if (eventTarget.className && eventTarget.className.indexOf('p-tree-toggler') === 0) {
+                return;
+            }
+            else {
+                let index = this.findIndexInSelection(node);
+                let selected = (index >= 0);
+                if (!selected) {
+                    if (this.isSingleSelectionMode())
+                        this.selectionChange.emit(node);
+                    else
+                        this.selectionChange.emit([node]);
+                }
+                this.contextMenu.show(event);
+                this.onNodeContextMenuSelect.emit({ originalEvent: event, node: node });
+            }
+        }
+    }
+    findIndexInSelection(node) {
+        let index = -1;
+        if (this.selectionMode && this.selection) {
+            if (this.isSingleSelectionMode()) {
+                let areNodesEqual = (this.selection.key && this.selection.key === node.key) || this.selection == node;
+                index = areNodesEqual ? 0 : -1;
+            }
+            else {
+                for (let i = 0; i < this.selection.length; i++) {
+                    let selectedNode = this.selection[i];
+                    let areNodesEqual = (selectedNode.key && selectedNode.key === node.key) || selectedNode == node;
+                    if (areNodesEqual) {
+                        index = i;
+                        break;
+                    }
+                }
+            }
+        }
+        return index;
+    }
+    syncNodeOption(node, parentNodes, option, value) {
+        // to synchronize the node option between the filtered nodes and the original nodes(this.value)
+        const _node = this.hasFilteredNodes() ? this.getNodeWithKey(node.key, parentNodes) : null;
+        if (_node) {
+            _node[option] = value || node[option];
+        }
+    }
+    hasFilteredNodes() {
+        return this.filter && this.filteredNodes && this.filteredNodes.length;
+    }
+    getNodeWithKey(key, nodes) {
+        for (let node of nodes) {
+            if (node.key === key) {
+                return node;
+            }
+            if (node.children) {
+                let matchedNode = this.getNodeWithKey(key, node.children);
+                if (matchedNode) {
+                    return matchedNode;
+                }
+            }
+        }
+    }
+    propagateUp(node, select) {
+        if (node.children && node.children.length) {
+            let selectedCount = 0;
+            let childPartialSelected = false;
+            for (let child of node.children) {
+                if (this.isSelected(child)) {
+                    selectedCount++;
+                }
+                else if (child.partialSelected) {
+                    childPartialSelected = true;
+                }
+            }
+            if (select && selectedCount == node.children.length) {
+                this.selection = [...this.selection || [], node];
+                node.partialSelected = false;
+            }
+            else {
+                if (!select) {
+                    let index = this.findIndexInSelection(node);
+                    if (index >= 0) {
+                        this.selection = this.selection.filter((val, i) => i != index);
+                    }
+                }
+                if (childPartialSelected || selectedCount > 0 && selectedCount != node.children.length)
+                    node.partialSelected = true;
+                else
+                    node.partialSelected = false;
+            }
+            this.syncNodeOption(node, this.filteredNodes, 'partialSelected');
+        }
+        let parent = node.parent;
+        if (parent) {
+            this.propagateUp(parent, select);
+        }
+    }
+    propagateDown(node, select) {
+        let index = this.findIndexInSelection(node);
+        if (select && index == -1) {
+            this.selection = [...this.selection || [], node];
+        }
+        else if (!select && index > -1) {
+            this.selection = this.selection.filter((val, i) => i != index);
+        }
+        node.partialSelected = false;
+        this.syncNodeOption(node, this.filteredNodes, 'partialSelected');
+        if (node.children && node.children.length) {
+            for (let child of node.children) {
+                this.propagateDown(child, select);
+            }
+        }
+    }
+    isSelected(node) {
+        return this.findIndexInSelection(node) != -1;
+    }
+    isSingleSelectionMode() {
+        return this.selectionMode && this.selectionMode == 'single';
+    }
+    isMultipleSelectionMode() {
+        return this.selectionMode && this.selectionMode == 'multiple';
+    }
+    isCheckboxSelectionMode() {
+        return this.selectionMode && this.selectionMode == 'checkbox';
+    }
+    isNodeLeaf(node) {
+        return node.leaf == false ? false : !(node.children && node.children.length);
+    }
+    getRootNode() {
+        return this.filteredNodes ? this.filteredNodes : this.value;
+    }
+    getTemplateForNode(node) {
+        if (this.templateMap)
+            return node.type ? this.templateMap[node.type] : this.templateMap['default'];
+        else
+            return null;
+    }
+    onDragOver(event) {
+        if (this.droppableNodes && (!this.value || this.value.length === 0)) {
+            event.dataTransfer.dropEffect = 'move';
+            event.preventDefault();
+        }
+    }
+    onDrop(event) {
+        if (this.droppableNodes && (!this.value || this.value.length === 0)) {
+            event.preventDefault();
+            let dragNode = this.dragNode;
+            if (this.allowDrop(dragNode, null, this.dragNodeScope)) {
+                let dragNodeIndex = this.dragNodeIndex;
+                this.value = this.value || [];
+                if (this.validateDrop) {
+                    this.onNodeDrop.emit({
+                        originalEvent: event,
+                        dragNode: dragNode,
+                        dropNode: null,
+                        index: dragNodeIndex,
+                        accept: () => {
+                            this.processTreeDrop(dragNode, dragNodeIndex);
+                        }
+                    });
+                }
+                else {
+                    this.onNodeDrop.emit({
+                        originalEvent: event,
+                        dragNode: dragNode,
+                        dropNode: null,
+                        index: dragNodeIndex
+                    });
+                    this.processTreeDrop(dragNode, dragNodeIndex);
+                }
+            }
+        }
+    }
+    processTreeDrop(dragNode, dragNodeIndex) {
+        this.dragNodeSubNodes.splice(dragNodeIndex, 1);
+        this.value.push(dragNode);
+        this.dragDropService.stopDrag({
+            node: dragNode
+        });
+    }
+    onDragEnter() {
+        if (this.droppableNodes && this.allowDrop(this.dragNode, null, this.dragNodeScope)) {
+            this.dragHover = true;
+        }
+    }
+    onDragLeave(event) {
+        if (this.droppableNodes) {
+            let rect = event.currentTarget.getBoundingClientRect();
+            if (event.x > rect.left + rect.width || event.x < rect.left || event.y > rect.top + rect.height || event.y < rect.top) {
+                this.dragHover = false;
+            }
+        }
+    }
+    allowDrop(dragNode, dropNode, dragNodeScope) {
+        if (!dragNode) {
+            //prevent random html elements to be dragged
+            return false;
+        }
+        else if (this.isValidDragScope(dragNodeScope)) {
+            let allow = true;
+            if (dropNode) {
+                if (dragNode === dropNode) {
+                    allow = false;
+                }
+                else {
+                    let parent = dropNode.parent;
+                    while (parent != null) {
+                        if (parent === dragNode) {
+                            allow = false;
+                            break;
+                        }
+                        parent = parent.parent;
+                    }
+                }
+            }
+            return allow;
+        }
+        else {
+            return false;
+        }
+    }
+    isValidDragScope(dragScope) {
+        let dropScope = this.droppableScope;
+        if (dropScope) {
+            if (typeof dropScope === 'string') {
+                if (typeof dragScope === 'string')
+                    return dropScope === dragScope;
+                else if (dragScope instanceof Array)
+                    return dragScope.indexOf(dropScope) != -1;
+            }
+            else if (dropScope instanceof Array) {
+                if (typeof dragScope === 'string') {
+                    return dropScope.indexOf(dragScope) != -1;
+                }
+                else if (dragScope instanceof Array) {
+                    for (let s of dropScope) {
+                        for (let ds of dragScope) {
+                            if (s === ds) {
+                                return true;
+                            }
+                        }
+                    }
+                }
+            }
+            return false;
+        }
+        else {
+            return true;
+        }
+    }
+    _filter(value) {
+        let filterValue = value;
+        if (filterValue === '') {
+            this.filteredNodes = null;
+        }
+        else {
+            this.filteredNodes = [];
+            const searchFields = this.filterBy.split(',');
+            const filterText = ObjectUtils.removeAccents(filterValue).toLocaleLowerCase(this.filterLocale);
+            const isStrictMode = this.filterMode === 'strict';
+            for (let node of this.value) {
+                let copyNode = { ...node };
+                let paramsWithoutNode = { searchFields, filterText, isStrictMode };
+                if ((isStrictMode && (this.findFilteredNodes(copyNode, paramsWithoutNode) || this.isFilterMatched(copyNode, paramsWithoutNode))) ||
+                    (!isStrictMode && (this.isFilterMatched(copyNode, paramsWithoutNode) || this.findFilteredNodes(copyNode, paramsWithoutNode)))) {
+                    this.filteredNodes.push(copyNode);
+                }
+            }
+        }
+        this.updateSerializedValue();
+        this.onFilter.emit({
+            filter: filterValue,
+            filteredValue: this.filteredNodes
+        });
+    }
+    resetFilter() {
+        this.filteredNodes = null;
+        if (this.filterViewChild && this.filterViewChild.nativeElement) {
+            this.filterViewChild.nativeElement.value = '';
+        }
+    }
+    findFilteredNodes(node, paramsWithoutNode) {
+        if (node) {
+            let matched = false;
+            if (node.children) {
+                let childNodes = [...node.children];
+                node.children = [];
+                for (let childNode of childNodes) {
+                    let copyChildNode = { ...childNode };
+                    if (this.isFilterMatched(copyChildNode, paramsWithoutNode)) {
+                        matched = true;
+                        node.children.push(copyChildNode);
+                    }
+                }
+            }
+            if (matched) {
+                node.expanded = true;
+                return true;
+            }
+        }
+    }
+    isFilterMatched(node, { searchFields, filterText, isStrictMode }) {
+        let matched = false;
+        for (let field of searchFields) {
+            let fieldValue = ObjectUtils.removeAccents(String(ObjectUtils.resolveFieldData(node, field))).toLocaleLowerCase(this.filterLocale);
+            if (fieldValue.indexOf(filterText) > -1) {
+                matched = true;
+            }
+        }
+        if (!matched || (isStrictMode && !this.isNodeLeaf(node))) {
+            matched = this.findFilteredNodes(node, { searchFields, filterText, isStrictMode }) || matched;
+        }
+        return matched;
+    }
+    getBlockableElement() {
+        return this.el.nativeElement.children[0];
+    }
+    ngOnDestroy() {
+        if (this.dragStartSubscription) {
+            this.dragStartSubscription.unsubscribe();
+        }
+        if (this.dragStopSubscription) {
+            this.dragStopSubscription.unsubscribe();
+        }
+    }
+}
+Tree.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "13.0.0", ngImport: i0, type: Tree, deps: [{ token: i0.ElementRef }, { token: i3.TreeDragDropService, optional: true }, { token: i3.PrimeNGConfig }], target: i0.ɵɵFactoryTarget.Component });
+Tree.ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: "12.0.0", version: "13.0.0", type: Tree, selector: "p-tree", inputs: { value: "value", selectionMode: "selectionMode", selection: "selection", style: "style", styleClass: "styleClass", contextMenu: "contextMenu", layout: "layout", draggableScope: "draggableScope", droppableScope: "droppableScope", draggableNodes: "draggableNodes", droppableNodes: "droppableNodes", metaKeySelection: "metaKeySelection", propagateSelectionUp: "propagateSelectionUp", propagateSelectionDown: "propagateSelectionDown", loading: "loading", loadingIcon: "loadingIcon", emptyMessage: "emptyMessage", ariaLabel: "ariaLabel", togglerAriaLabel: "togglerAriaLabel", ariaLabelledBy: "ariaLabelledBy", validateDrop: "validateDrop", filter: "filter", filterBy: "filterBy", filterMode: "filterMode", filterPlaceholder: "filterPlaceholder", filterLocale: "filterLocale", scrollHeight: "scrollHeight", virtualScroll: "virtualScroll", virtualNodeHeight: "virtualNodeHeight", minBufferPx: "minBufferPx", maxBufferPx: "maxBufferPx", indentation: "indentation", trackBy: "trackBy" }, outputs: { selectionChange: "selectionChange", onNodeSelect: "onNodeSelect", onNodeUnselect: "onNodeUnselect", onNodeExpand: "onNodeExpand", onNodeCollapse: "onNodeCollapse", onNodeContextMenuSelect: "onNodeContextMenuSelect", onNodeDrop: "onNodeDrop", onFilter: "onFilter" }, host: { classAttribute: "p-element" }, queries: [{ propertyName: "templates", predicate: PrimeTemplate }], viewQueries: [{ propertyName: "virtualScrollBody", first: true, predicate: CdkVirtualScrollViewport, descendants: true }, { propertyName: "filterViewChild", first: true, predicate: ["filter"], descendants: true }], usesOnChanges: true, ngImport: i0, template: `
+        <div [ngClass]="{'p-tree p-component':true,'p-tree-selectable':selectionMode,
+                'p-treenode-dragover':dragHover,'p-tree-loading': loading, 'p-tree-flex-scrollable': scrollHeight === 'flex'}"
+            [ngStyle]="style" [class]="styleClass" *ngIf="!horizontal"
+            (drop)="onDrop($event)" (dragover)="onDragOver($event)" (dragenter)="onDragEnter()" (dragleave)="onDragLeave($event)">
+            <div class="p-tree-loading-overlay p-component-overlay" *ngIf="loading">
+                <i [class]="'p-tree-loading-icon pi-spin ' + loadingIcon"></i>
+            </div>
+            <ng-container *ngTemplateOutlet="headerTemplate"></ng-container>
+            <div *ngIf="filter" class="p-tree-filter-container">
+                <input #filter type="text" autocomplete="off" class="p-tree-filter p-inputtext p-component" [attr.placeholder]="filterPlaceholder"
+                    (keydown.enter)="$event.preventDefault()" (input)="_filter($event.target.value)">
+                    <span class="p-tree-filter-icon pi pi-search"></span>
+            </div>
+            <ng-container *ngIf="!virtualScroll; else virtualScrollList">
+                <div class="p-tree-wrapper" [style.max-height]="scrollHeight">
+                    <ul class="p-tree-container" *ngIf="getRootNode()" role="tree" [attr.aria-label]="ariaLabel" [attr.aria-labelledby]="ariaLabelledBy">
+                        <p-treeNode *ngFor="let node of getRootNode(); let firstChild=first;let lastChild=last; let index=index; trackBy: trackBy" [node]="node"
+                                    [firstChild]="firstChild" [lastChild]="lastChild" [index]="index" [level]="0"></p-treeNode>
+                    </ul>
+                </div>
+            </ng-container>
+            <ng-template #virtualScrollList>
+                <cdk-virtual-scroll-viewport class="p-tree-wrapper" [style.height]="scrollHeight" [itemSize]="virtualNodeHeight" [minBufferPx]="minBufferPx" [maxBufferPx]="maxBufferPx">
+                    <ul class="p-tree-container" *ngIf="getRootNode()" role="tree" [attr.aria-label]="ariaLabel" [attr.aria-labelledby]="ariaLabelledBy">
+                        <p-treeNode *cdkVirtualFor="let rowNode of serializedValue; let firstChild=first; let lastChild=last; let index=index; trackBy: trackBy; templateCacheSize: 0"  [level]="rowNode.level"
+                                    [rowNode]="rowNode" [node]="rowNode.node" [firstChild]="firstChild" [lastChild]="lastChild" [index]="index" [style.height.px]="virtualNodeHeight" [indentation]="indentation"></p-treeNode>
+                    </ul>
+                </cdk-virtual-scroll-viewport>
+            </ng-template>
+            <div class="p-tree-empty-message" *ngIf="!loading && (getRootNode() == null || getRootNode().length === 0)">
+                <ng-container *ngIf="!emptyMessageTemplate; else emptyFilter">
+                    {{emptyMessageLabel}}
+                </ng-container>
+                <ng-container #emptyFilter *ngTemplateOutlet="emptyMessageTemplate"></ng-container>
+            </div>
+            <ng-container *ngTemplateOutlet="footerTemplate"></ng-container>
+        </div>
+        <div [ngClass]="{'p-tree p-tree-horizontal p-component':true,'p-tree-selectable':selectionMode}"  [ngStyle]="style" [class]="styleClass" *ngIf="horizontal">
+            <ng-container *ngTemplateOutlet="headerTemplate"></ng-container>
+            <div class="p-tree-loading-mask p-component-overlay" *ngIf="loading">
+                <i [class]="'p-tree-loading-icon pi-spin ' + loadingIcon"></i>
+            </div>
+            <table *ngIf="value&&value[0]">
+                <p-treeNode [node]="value[0]" [root]="true"></p-treeNode>
+            </table>
+            <div class="p-tree-empty-message" *ngIf="!loading && (getRootNode() == null || getRootNode().length === 0)">
+                <ng-container *ngIf="!emptyMessageTemplate; else emptyFilter">
+                    {{emptyMessageLabel}}
+                </ng-container>
+                <ng-container #emptyFilter *ngTemplateOutlet="emptyMessageTemplate"></ng-container>
+            </div>
+            <ng-container *ngTemplateOutlet="footerTemplate"></ng-container>
+        </div>
+    `, isInline: true, styles: [".p-tree-container{margin:0;padding:0;list-style-type:none;overflow:auto}.p-treenode-children{margin:0;padding:0;list-style-type:none}.p-tree-wrapper{overflow:auto}.p-treenode-selectable{cursor:pointer;-webkit-user-select:none;-ms-user-select:none;user-select:none}.p-tree-toggler{cursor:pointer;-webkit-user-select:none;-ms-user-select:none;user-select:none;display:inline-flex;align-items:center;justify-content:center;overflow:hidden;position:relative}.p-treenode-leaf>.p-treenode-content .p-tree-toggler{visibility:hidden}.p-treenode-content{display:flex;align-items:center}.p-tree-filter{width:100%}.p-tree-filter-container{position:relative;display:block;width:100%}.p-tree-filter-icon{position:absolute;top:50%;margin-top:-.5rem}.p-tree-loading{position:relative;min-height:4rem}.p-tree .p-tree-loading-overlay{position:absolute;display:flex;align-items:center;justify-content:center;z-index:2}.p-tree-flex-scrollable{display:flex;flex:1;height:100%;flex-direction:column}.p-tree-flex-scrollable .p-tree-wrapper{flex:1}.p-tree .p-treenode-droppoint{height:4px;list-style-type:none}.p-tree .p-treenode-droppoint-active{border:0 none}.p-tree-horizontal{width:auto;padding-left:0;padding-right:0;overflow:auto}.p-tree.p-tree-horizontal table,.p-tree.p-tree-horizontal tr,.p-tree.p-tree-horizontal td{border-collapse:collapse;margin:0;padding:0;vertical-align:middle}.p-tree-horizontal .p-treenode-content{font-weight:normal;padding:.4em 1em .4em .2em;display:flex;align-items:center}.p-tree-horizontal .p-treenode-parent .p-treenode-content{font-weight:normal;white-space:nowrap}.p-tree.p-tree-horizontal .p-treenode{background:url(data:image/gif;base64,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repeat-y scroll 0 0 transparent;width:1px}.p-tree.p-tree-horizontal table{height:0}\n"], components: [{ type: UITreeNode, selector: "p-treeNode", inputs: ["rowNode", "node", "parentNode", "root", "index", "firstChild", "lastChild", "level", "indentation"] }, { type: i4.CdkVirtualScrollViewport, selector: "cdk-virtual-scroll-viewport", inputs: ["orientation", "appendOnly"], outputs: ["scrolledIndexChange"] }], directives: [{ type: i1.NgIf, selector: "[ngIf]", inputs: ["ngIf", "ngIfThen", "ngIfElse"] }, { type: i1.NgClass, selector: "[ngClass]", inputs: ["class", "ngClass"] }, { type: i1.NgStyle, selector: "[ngStyle]", inputs: ["ngStyle"] }, { type: i1.NgTemplateOutlet, selector: "[ngTemplateOutlet]", inputs: ["ngTemplateOutletContext", "ngTemplateOutlet"] }, { type: i1.NgForOf, selector: "[ngFor][ngForOf]", inputs: ["ngForOf", "ngForTrackBy", "ngForTemplate"] }, { type: i4.CdkFixedSizeVirtualScroll, selector: "cdk-virtual-scroll-viewport[itemSize]", inputs: ["itemSize", "minBufferPx", "maxBufferPx"] }, { type: i4.CdkVirtualForOf, selector: "[cdkVirtualFor][cdkVirtualForOf]", inputs: ["cdkVirtualForOf", "cdkVirtualForTrackBy", "cdkVirtualForTemplate", "cdkVirtualForTemplateCacheSize"] }], changeDetection: i0.ChangeDetectionStrategy.Default, encapsulation: i0.ViewEncapsulation.None });
+i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "13.0.0", ngImport: i0, type: Tree, decorators: [{
+            type: Component,
+            args: [{ selector: 'p-tree', template: `
+        <div [ngClass]="{'p-tree p-component':true,'p-tree-selectable':selectionMode,
+                'p-treenode-dragover':dragHover,'p-tree-loading': loading, 'p-tree-flex-scrollable': scrollHeight === 'flex'}"
+            [ngStyle]="style" [class]="styleClass" *ngIf="!horizontal"
+            (drop)="onDrop($event)" (dragover)="onDragOver($event)" (dragenter)="onDragEnter()" (dragleave)="onDragLeave($event)">
+            <div class="p-tree-loading-overlay p-component-overlay" *ngIf="loading">
+                <i [class]="'p-tree-loading-icon pi-spin ' + loadingIcon"></i>
+            </div>
+            <ng-container *ngTemplateOutlet="headerTemplate"></ng-container>
+            <div *ngIf="filter" class="p-tree-filter-container">
+                <input #filter type="text" autocomplete="off" class="p-tree-filter p-inputtext p-component" [attr.placeholder]="filterPlaceholder"
+                    (keydown.enter)="$event.preventDefault()" (input)="_filter($event.target.value)">
+                    <span class="p-tree-filter-icon pi pi-search"></span>
+            </div>
+            <ng-container *ngIf="!virtualScroll; else virtualScrollList">
+                <div class="p-tree-wrapper" [style.max-height]="scrollHeight">
+                    <ul class="p-tree-container" *ngIf="getRootNode()" role="tree" [attr.aria-label]="ariaLabel" [attr.aria-labelledby]="ariaLabelledBy">
+                        <p-treeNode *ngFor="let node of getRootNode(); let firstChild=first;let lastChild=last; let index=index; trackBy: trackBy" [node]="node"
+                                    [firstChild]="firstChild" [lastChild]="lastChild" [index]="index" [level]="0"></p-treeNode>
+                    </ul>
+                </div>
+            </ng-container>
+            <ng-template #virtualScrollList>
+                <cdk-virtual-scroll-viewport class="p-tree-wrapper" [style.height]="scrollHeight" [itemSize]="virtualNodeHeight" [minBufferPx]="minBufferPx" [maxBufferPx]="maxBufferPx">
+                    <ul class="p-tree-container" *ngIf="getRootNode()" role="tree" [attr.aria-label]="ariaLabel" [attr.aria-labelledby]="ariaLabelledBy">
+                        <p-treeNode *cdkVirtualFor="let rowNode of serializedValue; let firstChild=first; let lastChild=last; let index=index; trackBy: trackBy; templateCacheSize: 0"  [level]="rowNode.level"
+                                    [rowNode]="rowNode" [node]="rowNode.node" [firstChild]="firstChild" [lastChild]="lastChild" [index]="index" [style.height.px]="virtualNodeHeight" [indentation]="indentation"></p-treeNode>
+                    </ul>
+                </cdk-virtual-scroll-viewport>
+            </ng-template>
+            <div class="p-tree-empty-message" *ngIf="!loading && (getRootNode() == null || getRootNode().length === 0)">
+                <ng-container *ngIf="!emptyMessageTemplate; else emptyFilter">
+                    {{emptyMessageLabel}}
+                </ng-container>
+                <ng-container #emptyFilter *ngTemplateOutlet="emptyMessageTemplate"></ng-container>
+            </div>
+            <ng-container *ngTemplateOutlet="footerTemplate"></ng-container>
+        </div>
+        <div [ngClass]="{'p-tree p-tree-horizontal p-component':true,'p-tree-selectable':selectionMode}"  [ngStyle]="style" [class]="styleClass" *ngIf="horizontal">
+            <ng-container *ngTemplateOutlet="headerTemplate"></ng-container>
+            <div class="p-tree-loading-mask p-component-overlay" *ngIf="loading">
+                <i [class]="'p-tree-loading-icon pi-spin ' + loadingIcon"></i>
+            </div>
+            <table *ngIf="value&&value[0]">
+                <p-treeNode [node]="value[0]" [root]="true"></p-treeNode>
+            </table>
+            <div class="p-tree-empty-message" *ngIf="!loading && (getRootNode() == null || getRootNode().length === 0)">
+                <ng-container *ngIf="!emptyMessageTemplate; else emptyFilter">
+                    {{emptyMessageLabel}}
+                </ng-container>
+                <ng-container #emptyFilter *ngTemplateOutlet="emptyMessageTemplate"></ng-container>
+            </div>
+            <ng-container *ngTemplateOutlet="footerTemplate"></ng-container>
+        </div>
+    `, changeDetection: ChangeDetectionStrategy.Default, encapsulation: ViewEncapsulation.None, host: {
+                        'class': 'p-element'
+                    }, styles: [".p-tree-container{margin:0;padding:0;list-style-type:none;overflow:auto}.p-treenode-children{margin:0;padding:0;list-style-type:none}.p-tree-wrapper{overflow:auto}.p-treenode-selectable{cursor:pointer;-webkit-user-select:none;-ms-user-select:none;user-select:none}.p-tree-toggler{cursor:pointer;-webkit-user-select:none;-ms-user-select:none;user-select:none;display:inline-flex;align-items:center;justify-content:center;overflow:hidden;position:relative}.p-treenode-leaf>.p-treenode-content .p-tree-toggler{visibility:hidden}.p-treenode-content{display:flex;align-items:center}.p-tree-filter{width:100%}.p-tree-filter-container{position:relative;display:block;width:100%}.p-tree-filter-icon{position:absolute;top:50%;margin-top:-.5rem}.p-tree-loading{position:relative;min-height:4rem}.p-tree 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+        }], ctorParameters: function () { return [{ type: i0.ElementRef }, { type: i3.TreeDragDropService, decorators: [{
+                    type: Optional
+                }] }, { type: i3.PrimeNGConfig }]; }, propDecorators: { value: [{
+                type: Input
+            }], selectionMode: [{
+                type: Input
+            }], selection: [{
+                type: Input
+            }], selectionChange: [{
+                type: Output
+            }], onNodeSelect: [{
+                type: Output
+            }], onNodeUnselect: [{
+                type: Output
+            }], onNodeExpand: [{
+                type: Output
+            }], onNodeCollapse: [{
+                type: Output
+            }], onNodeContextMenuSelect: [{
+                type: Output
+            }], onNodeDrop: [{
+                type: Output
+            }], style: [{
+                type: Input
+            }], styleClass: [{
+                type: Input
+            }], contextMenu: [{
+                type: Input
+            }], layout: [{
+                type: Input
+            }], draggableScope: [{
+                type: Input
+            }], droppableScope: [{
+                type: Input
+            }], draggableNodes: [{
+                type: Input
+            }], droppableNodes: [{
+                type: Input
+            }], metaKeySelection: [{
+                type: Input
+            }], propagateSelectionUp: [{
+                type: Input
+            }], propagateSelectionDown: [{
+                type: Input
+            }], loading: [{
+                type: Input
+            }], loadingIcon: [{
+                type: Input
+            }], emptyMessage: [{
+                type: Input
+            }], ariaLabel: [{
+                type: Input
+            }], togglerAriaLabel: [{
+                type: Input
+            }], ariaLabelledBy: [{
+                type: Input
+            }], validateDrop: [{
+                type: Input
+            }], filter: [{
+                type: Input
+            }], filterBy: [{
+                type: Input
+            }], filterMode: [{
+                type: Input
+            }], filterPlaceholder: [{
+                type: Input
+            }], filterLocale: [{
+                type: Input
+            }], scrollHeight: [{
+                type: Input
+            }], virtualScroll: [{
+                type: Input
+            }], virtualNodeHeight: [{
+                type: Input
+            }], minBufferPx: [{
+                type: Input
+            }], maxBufferPx: [{
+                type: Input
+            }], indentation: [{
+                type: Input
+            }], trackBy: [{
+                type: Input
+            }], onFilter: [{
+                type: Output
+            }], templates: [{
+                type: ContentChildren,
+                args: [PrimeTemplate]
+            }], virtualScrollBody: [{
+                type: ViewChild,
+                args: [CdkVirtualScrollViewport]
+            }], filterViewChild: [{
+                type: ViewChild,
+                args: ['filter']
+            }] } });
+class TreeModule {
+}
+TreeModule.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "13.0.0", ngImport: i0, type: TreeModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });
+TreeModule.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: "12.0.0", version: "13.0.0", ngImport: i0, type: TreeModule, declarations: [Tree, UITreeNode], imports: [CommonModule, ScrollingModule, RippleModule], exports: [Tree, SharedModule, ScrollingModule] });
+TreeModule.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: "12.0.0", version: "13.0.0", ngImport: i0, type: TreeModule, imports: [[CommonModule, ScrollingModule, RippleModule], SharedModule, ScrollingModule] });
+i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "13.0.0", ngImport: i0, type: TreeModule, decorators: [{
+            type: NgModule,
+            args: [{
+                    imports: [CommonModule, ScrollingModule, RippleModule],
+                    exports: [Tree, SharedModule, ScrollingModule],
+                    declarations: [Tree, UITreeNode]
+                }]
+        }] });
+
+/**
+ * Generated bundle index. Do not edit.
+ */
+
+export { Tree, TreeModule, UITreeNode };
