node_modules/@angular/material/esm2015/tree.js - nifi-fds - Git at Google

 /**
  * @license
  * Copyright Google LLC All Rights Reserved.
  *
  * Use of this source code is governed by an MIT-style license that can be
  * found in the LICENSE file at https://angular.io/license
  */
 import { CDK_TREE_NODE_OUTLET_NODE, CdkNestedTreeNode, CdkTree, CdkTreeNode, CdkTreeNodeDef, CdkTreeNodePadding, CdkTreeNodeToggle, CdkTreeModule } from '@angular/cdk/tree';
 import { Directive, Inject, Optional, ViewContainerRef, Attribute, ContentChildren, ElementRef, Input, IterableDiffers, ChangeDetectionStrategy, Component, ViewChild, ViewEncapsulation, NgModule } from '@angular/core';
 import { mixinDisabled, mixinTabIndex, MatCommonModule } from '@angular/material/core';
 import { CommonModule } from '@angular/common';
 import { DataSource } from '@angular/cdk/collections';
 import { BehaviorSubject, merge } from 'rxjs';
 import { map, take } from 'rxjs/operators';

 /**
  * @fileoverview added by tsickle
  * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
 /**
  * Outlet for nested CdkNode. Put `[matTreeNodeOutlet]` on a tag to place children dataNodes
  * inside the outlet.
  */
 class MatTreeNodeOutlet {
     /**
      * @param {?} viewContainer
      * @param {?=} _node
      */
     constructor(viewContainer, _node) {
         this.viewContainer = viewContainer;
         this._node = _node;
     }
 }
 MatTreeNodeOutlet.decorators = [
     { type: Directive, args: [{
                 selector: '[matTreeNodeOutlet]'
             },] },
 ];
 /** @nocollapse */
 MatTreeNodeOutlet.ctorParameters = () => [
     { type: ViewContainerRef },
     { type: undefined, decorators: [{ type: Inject, args: [CDK_TREE_NODE_OUTLET_NODE,] }, { type: Optional }] }
 ];

 /**
  * @fileoverview added by tsickle
  * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
 /** @type {?} */
 const _MatTreeNodeMixinBase = mixinTabIndex(mixinDisabled(CdkTreeNode));
 /** @type {?} */
 const _MatNestedTreeNodeMixinBase = mixinTabIndex(mixinDisabled(CdkNestedTreeNode));
 /**
  * Wrapper for the CdkTree node with Material design styles.
  * @template T
  */
 class MatTreeNode extends _MatTreeNodeMixinBase {
     /**
      * @param {?} _elementRef
      * @param {?} _tree
      * @param {?} tabIndex
      */
     constructor(_elementRef, _tree, tabIndex) {
         super(_elementRef, _tree);
         this._elementRef = _elementRef;
         this._tree = _tree;
         this.role = 'treeitem';
         this.tabIndex = Number(tabIndex) || 0;
     }
 }
 MatTreeNode.decorators = [
     { type: Directive, args: [{
                 selector: 'mat-tree-node',
                 exportAs: 'matTreeNode',
                 inputs: ['disabled', 'tabIndex'],
                 host: {
                     '[attr.aria-expanded]': 'isExpanded',
                     '[attr.aria-level]': 'role === "treeitem" ? level : null',
                     '[attr.role]': 'role',
                     'class': 'mat-tree-node'
                 },
                 providers: [{ provide: CdkTreeNode, useExisting: MatTreeNode }]
             },] },
 ];
 /** @nocollapse */
 MatTreeNode.ctorParameters = () => [
     { type: ElementRef },
     { type: CdkTree },
     { type: String, decorators: [{ type: Attribute, args: ['tabindex',] }] }
 ];
 MatTreeNode.propDecorators = {
     role: [{ type: Input }]
 };
 /**
  * Wrapper for the CdkTree node definition with Material design styles.
  * @template T
  */
 class MatTreeNodeDef extends CdkTreeNodeDef {
 }
 MatTreeNodeDef.decorators = [
     { type: Directive, args: [{
                 selector: '[matTreeNodeDef]',
                 inputs: [
                     'when: matTreeNodeDefWhen'
                 ],
                 providers: [{ provide: CdkTreeNodeDef, useExisting: MatTreeNodeDef }]
             },] },
 ];
 MatTreeNodeDef.propDecorators = {
     data: [{ type: Input, args: ['matTreeNode',] }]
 };
 /**
  * Wrapper for the CdkTree nested node with Material design styles.
  * @template T
  */
 class MatNestedTreeNode extends _MatNestedTreeNodeMixinBase {
     /**
      * @param {?} _elementRef
      * @param {?} _tree
      * @param {?} _differs
      * @param {?} tabIndex
      */
     constructor(_elementRef, _tree, _differs, tabIndex) {
         super(_elementRef, _tree, _differs);
         this._elementRef = _elementRef;
         this._tree = _tree;
         this._differs = _differs;
         this.tabIndex = Number(tabIndex) || 0;
     }
     // This is a workaround for https://github.com/angular/angular/issues/23091
     // In aot mode, the lifecycle hooks from parent class are not called.
     // TODO(tinayuangao): Remove when the angular issue #23091 is fixed
     /**
      * @return {?}
      */
     ngAfterContentInit() {
         super.ngAfterContentInit();
     }
     /**
      * @return {?}
      */
     ngOnDestroy() {
         super.ngOnDestroy();
     }
 }
 MatNestedTreeNode.decorators = [
     { type: Directive, args: [{
                 selector: 'mat-nested-tree-node',
                 exportAs: 'matNestedTreeNode',
                 host: {
                     '[attr.aria-expanded]': 'isExpanded',
                     '[attr.role]': 'role',
                     'class': 'mat-nested-tree-node',
                 },
                 inputs: ['disabled', 'tabIndex'],
                 providers: [
                     { provide: CdkNestedTreeNode, useExisting: MatNestedTreeNode },
                     { provide: CdkTreeNode, useExisting: MatNestedTreeNode },
                     { provide: CDK_TREE_NODE_OUTLET_NODE, useExisting: MatNestedTreeNode }
                 ]
             },] },
 ];
 /** @nocollapse */
 MatNestedTreeNode.ctorParameters = () => [
     { type: ElementRef },
     { type: CdkTree },
     { type: IterableDiffers },
     { type: String, decorators: [{ type: Attribute, args: ['tabindex',] }] }
 ];
 MatNestedTreeNode.propDecorators = {
     node: [{ type: Input, args: ['matNestedTreeNode',] }],
     nodeOutlet: [{ type: ContentChildren, args: [MatTreeNodeOutlet, {
                     // We need to use `descendants: true`, because Ivy will no longer match
                     // indirect descendants if it's left as false.
                     descendants: true
                 },] }]
 };

 /**
  * @fileoverview added by tsickle
  * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
 /**
  * Wrapper for the CdkTree padding with Material design styles.
  * @template T
  */
 class MatTreeNodePadding extends CdkTreeNodePadding {
 }
 MatTreeNodePadding.decorators = [
     { type: Directive, args: [{
                 selector: '[matTreeNodePadding]',
                 providers: [{ provide: CdkTreeNodePadding, useExisting: MatTreeNodePadding }]
             },] },
 ];
 MatTreeNodePadding.propDecorators = {
     level: [{ type: Input, args: ['matTreeNodePadding',] }],
     indent: [{ type: Input, args: ['matTreeNodePaddingIndent',] }]
 };

 /**
  * @fileoverview added by tsickle
  * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
 /**
  * Wrapper for the CdkTable with Material design styles.
  * @template T
  */
 class MatTree extends CdkTree {
 }
 MatTree.decorators = [
     { type: Component, args: [{selector: 'mat-tree',
                 exportAs: 'matTree',
                 template: `<ng-container matTreeNodeOutlet></ng-container>`,
                 host: {
                     'class': 'mat-tree',
                     'role': 'tree',
                 },
                 styles: [".mat-tree{display:block}.mat-tree-node{display:flex;align-items:center;min-height:48px;flex:1;overflow:hidden;word-wrap:break-word}.mat-nested-tree-ndoe{border-bottom-width:0}"],
                 encapsulation: ViewEncapsulation.None,
                 // See note on CdkTree for explanation on why this uses the default change detection strategy.
                 // tslint:disable-next-line:validate-decorators
                 changeDetection: ChangeDetectionStrategy.Default,
                 providers: [{ provide: CdkTree, useExisting: MatTree }]
             },] },
 ];
 MatTree.propDecorators = {
     _nodeOutlet: [{ type: ViewChild, args: [MatTreeNodeOutlet, { static: true },] }]
 };

 /**
  * @fileoverview added by tsickle
  * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
 /**
  * Wrapper for the CdkTree's toggle with Material design styles.
  * @template T
  */
 class MatTreeNodeToggle extends CdkTreeNodeToggle {
     constructor() {
         super(...arguments);
         this.recursive = false;
     }
 }
 MatTreeNodeToggle.decorators = [
     { type: Directive, args: [{
                 selector: '[matTreeNodeToggle]',
                 providers: [{ provide: CdkTreeNodeToggle, useExisting: MatTreeNodeToggle }]
             },] },
 ];
 MatTreeNodeToggle.propDecorators = {
     recursive: [{ type: Input, args: ['matTreeNodeToggleRecursive',] }]
 };

 /**
  * @fileoverview added by tsickle
  * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
 /** @type {?} */
 const MAT_TREE_DIRECTIVES = [
     MatNestedTreeNode,
     MatTreeNodeDef,
     MatTreeNodePadding,
     MatTreeNodeToggle,
     MatTree,
     MatTreeNode,
     MatTreeNodeOutlet
 ];
 class MatTreeModule {
 }
 MatTreeModule.decorators = [
     { type: NgModule, args: [{
                 imports: [CdkTreeModule, CommonModule, MatCommonModule],
                 exports: MAT_TREE_DIRECTIVES,
                 declarations: MAT_TREE_DIRECTIVES,
             },] },
 ];

 /**
  * @fileoverview added by tsickle
  * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
 /**
  * Tree flattener to convert a normal type of node to node with children & level information.
  * Transform nested nodes of type `T` to flattened nodes of type `F`.
  *
  * For example, the input data of type `T` is nested, and contains its children data:
  *   SomeNode: {
  *     key: 'Fruits',
  *     children: [
  *       NodeOne: {
  *         key: 'Apple',
  *       },
  *       NodeTwo: {
  *        key: 'Pear',
  *      }
  *    ]
  *  }
  *  After flattener flatten the tree, the structure will become
  *  SomeNode: {
  *    key: 'Fruits',
  *    expandable: true,
  *    level: 1
  *  },
  *  NodeOne: {
  *    key: 'Apple',
  *    expandable: false,
  *    level: 2
  *  },
  *  NodeTwo: {
  *   key: 'Pear',
  *   expandable: false,
  *   level: 2
  * }
  * and the output flattened type is `F` with additional information.
  * @template T, F
  */
 class MatTreeFlattener {
     /**
      * @param {?} transformFunction
      * @param {?} getLevel
      * @param {?} isExpandable
      * @param {?} getChildren
      */
     constructor(transformFunction, getLevel, isExpandable, getChildren) {
         this.transformFunction = transformFunction;
         this.getLevel = getLevel;
         this.isExpandable = isExpandable;
         this.getChildren = getChildren;
     }
     /**
      * @param {?} node
      * @param {?} level
      * @param {?} resultNodes
      * @param {?} parentMap
      * @return {?}
      */
     _flattenNode(node, level, resultNodes, parentMap) {
         /** @type {?} */
         const flatNode = this.transformFunction(node, level);
         resultNodes.push(flatNode);
         if (this.isExpandable(flatNode)) {
             /** @type {?} */
             const childrenNodes = this.getChildren(node);
             if (childrenNodes) {
                 if (Array.isArray(childrenNodes)) {
                     this._flattenChildren(childrenNodes, level, resultNodes, parentMap);
                 }
                 else {
                     childrenNodes.pipe(take(1)).subscribe((/**
                      * @param {?} children
                      * @return {?}
                      */
                     children => {
                         this._flattenChildren(children, level, resultNodes, parentMap);
                     }));
                 }
             }
         }
         return resultNodes;
     }
     /**
      * @param {?} children
      * @param {?} level
      * @param {?} resultNodes
      * @param {?} parentMap
      * @return {?}
      */
     _flattenChildren(children, level, resultNodes, parentMap) {
         children.forEach((/**
          * @param {?} child
          * @param {?} index
          * @return {?}
          */
         (child, index) => {
             /** @type {?} */
             let childParentMap = parentMap.slice();
             childParentMap.push(index != children.length - 1);
             this._flattenNode(child, level + 1, resultNodes, childParentMap);
         }));
     }
     /**
      * Flatten a list of node type T to flattened version of node F.
      * Please note that type T may be nested, and the length of `structuredData` may be different
      * from that of returned list `F[]`.
      * @param {?} structuredData
      * @return {?}
      */
     flattenNodes(structuredData) {
         /** @type {?} */
         let resultNodes = [];
         structuredData.forEach((/**
          * @param {?} node
          * @return {?}
          */
         node => this._flattenNode(node, 0, resultNodes, [])));
         return resultNodes;
     }
     /**
      * Expand flattened node with current expansion status.
      * The returned list may have different length.
      * @param {?} nodes
      * @param {?} treeControl
      * @return {?}
      */
     expandFlattenedNodes(nodes, treeControl) {
         /** @type {?} */
         let results = [];
         /** @type {?} */
         let currentExpand = [];
         currentExpand[0] = true;
         nodes.forEach((/**
          * @param {?} node
          * @return {?}
          */
         node => {
             /** @type {?} */
             let expand = true;
             for (let i = 0; i <= this.getLevel(node); i++) {
                 expand = expand && currentExpand[i];
             }
             if (expand) {
                 results.push(node);
             }
             if (this.isExpandable(node)) {
                 currentExpand[this.getLevel(node) + 1] = treeControl.isExpanded(node);
             }
         }));
         return results;
     }
 }
 /**
  * Data source for flat tree.
  * The data source need to handle expansion/collapsion of the tree node and change the data feed
  * to `MatTree`.
  * The nested tree nodes of type `T` are flattened through `MatTreeFlattener`, and converted
  * to type `F` for `MatTree` to consume.
  * @template T, F
  */
 class MatTreeFlatDataSource extends DataSource {
     /**
      * @param {?} _treeControl
      * @param {?} _treeFlattener
      * @param {?=} initialData
      */
     constructor(_treeControl, _treeFlattener, initialData = []) {
         super();
         this._treeControl = _treeControl;
         this._treeFlattener = _treeFlattener;
         this._flattenedData = new BehaviorSubject([]);
         this._expandedData = new BehaviorSubject([]);
         this._data = new BehaviorSubject(initialData);
     }
     /**
      * @return {?}
      */
     get data() { return this._data.value; }
     /**
      * @param {?} value
      * @return {?}
      */
     set data(value) {
         this._data.next(value);
         this._flattenedData.next(this._treeFlattener.flattenNodes(this.data));
         this._treeControl.dataNodes = this._flattenedData.value;
     }
     /**
      * @param {?} collectionViewer
      * @return {?}
      */
     connect(collectionViewer) {
         /** @type {?} */
         const changes = [
             collectionViewer.viewChange,
             this._treeControl.expansionModel.onChange,
             this._flattenedData
         ];
         return merge(...changes).pipe(map((/**
          * @return {?}
          */
         () => {
             this._expandedData.next(this._treeFlattener.expandFlattenedNodes(this._flattenedData.value, this._treeControl));
             return this._expandedData.value;
         })));
     }
     /**
      * @return {?}
      */
     disconnect() {
         // no op
     }
 }

 /**
  * @fileoverview added by tsickle
  * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */
 /**
  * Data source for nested tree.
  *
  * The data source for nested tree doesn't have to consider node flattener, or the way to expand
  * or collapse. The expansion/collapsion will be handled by TreeControl and each non-leaf node.
  * @template T
  */
 class MatTreeNestedDataSource extends DataSource {
     constructor() {
         super(...arguments);
         this._data = new BehaviorSubject([]);
     }
     /**
      * Data for the nested tree
      * @return {?}
      */
     get data() { return this._data.value; }
     /**
      * @param {?} value
      * @return {?}
      */
     set data(value) { this._data.next(value); }
     /**
      * @param {?} collectionViewer
      * @return {?}
      */
     connect(collectionViewer) {
         return merge(...[collectionViewer.viewChange, this._data])
             .pipe(map((/**
          * @return {?}
          */
         () => {
             return this.data;
         })));
     }
     /**
      * @return {?}
      */
     disconnect() {
         // no op
     }
 }

 /**
  * @fileoverview added by tsickle
  * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */

 /**
  * @fileoverview added by tsickle
  * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
  */

 export { MatTreeNode, MatTreeNodeDef, MatNestedTreeNode, MatTreeNodePadding, MatTree, MatTreeModule, MatTreeNodeToggle, MatTreeNodeOutlet, MatTreeFlattener, MatTreeFlatDataSource, MatTreeNestedDataSource };
 //# sourceMappingURL=tree.js.map
	/**
	* @license
	* Copyright Google LLC All Rights Reserved.
	*
	* Use of this source code is governed by an MIT-style license that can be
	* found in the LICENSE file at https://angular.io/license
	*/
	import { CDK_TREE_NODE_OUTLET_NODE, CdkNestedTreeNode, CdkTree, CdkTreeNode, CdkTreeNodeDef, CdkTreeNodePadding, CdkTreeNodeToggle, CdkTreeModule } from '@angular/cdk/tree';
	import { Directive, Inject, Optional, ViewContainerRef, Attribute, ContentChildren, ElementRef, Input, IterableDiffers, ChangeDetectionStrategy, Component, ViewChild, ViewEncapsulation, NgModule } from '@angular/core';
	import { mixinDisabled, mixinTabIndex, MatCommonModule } from '@angular/material/core';
	import { CommonModule } from '@angular/common';
	import { DataSource } from '@angular/cdk/collections';
	import { BehaviorSubject, merge } from 'rxjs';
	import { map, take } from 'rxjs/operators';

	/**
	* @fileoverview added by tsickle
	* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
	*/
	/**
	* Outlet for nested CdkNode. Put `[matTreeNodeOutlet]` on a tag to place children dataNodes
	* inside the outlet.
	*/
	class MatTreeNodeOutlet {
	/**
	* @param {?} viewContainer
	* @param {?=} _node
	*/
	constructor(viewContainer, _node) {
	this.viewContainer = viewContainer;
	this._node = _node;
	}
	}
	MatTreeNodeOutlet.decorators = [
	{ type: Directive, args: [{
	selector: '[matTreeNodeOutlet]'
	},] },
	];
	/** @nocollapse */
	MatTreeNodeOutlet.ctorParameters = () => [
	{ type: ViewContainerRef },
	{ type: undefined, decorators: [{ type: Inject, args: [CDK_TREE_NODE_OUTLET_NODE,] }, { type: Optional }] }
	];

	/**
	* @fileoverview added by tsickle
	* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
	*/
	/** @type {?} */
	const _MatTreeNodeMixinBase = mixinTabIndex(mixinDisabled(CdkTreeNode));
	/** @type {?} */
	const _MatNestedTreeNodeMixinBase = mixinTabIndex(mixinDisabled(CdkNestedTreeNode));
	/**
	* Wrapper for the CdkTree node with Material design styles.
	* @template T
	*/
	class MatTreeNode extends _MatTreeNodeMixinBase {
	/**
	* @param {?} _elementRef
	* @param {?} _tree
	* @param {?} tabIndex
	*/
	constructor(_elementRef, _tree, tabIndex) {
	super(_elementRef, _tree);
	this._elementRef = _elementRef;
	this._tree = _tree;
	this.role = 'treeitem';
	this.tabIndex = Number(tabIndex) \|\| 0;
	}
	}
	MatTreeNode.decorators = [
	{ type: Directive, args: [{
	selector: 'mat-tree-node',
	exportAs: 'matTreeNode',
	inputs: ['disabled', 'tabIndex'],
	host: {
	'[attr.aria-expanded]': 'isExpanded',
	'[attr.aria-level]': 'role === "treeitem" ? level : null',
	'[attr.role]': 'role',
	'class': 'mat-tree-node'
	},
	providers: [{ provide: CdkTreeNode, useExisting: MatTreeNode }]
	},] },
	];
	/** @nocollapse */
	MatTreeNode.ctorParameters = () => [
	{ type: ElementRef },
	{ type: CdkTree },
	{ type: String, decorators: [{ type: Attribute, args: ['tabindex',] }] }
	];
	MatTreeNode.propDecorators = {
	role: [{ type: Input }]
	};
	/**
	* Wrapper for the CdkTree node definition with Material design styles.
	* @template T
	*/
	class MatTreeNodeDef extends CdkTreeNodeDef {
	}
	MatTreeNodeDef.decorators = [
	{ type: Directive, args: [{
	selector: '[matTreeNodeDef]',
	inputs: [
	'when: matTreeNodeDefWhen'
	],
	providers: [{ provide: CdkTreeNodeDef, useExisting: MatTreeNodeDef }]
	},] },
	];
	MatTreeNodeDef.propDecorators = {
	data: [{ type: Input, args: ['matTreeNode',] }]
	};
	/**
	* Wrapper for the CdkTree nested node with Material design styles.
	* @template T
	*/
	class MatNestedTreeNode extends _MatNestedTreeNodeMixinBase {
	/**
	* @param {?} _elementRef
	* @param {?} _tree
	* @param {?} _differs
	* @param {?} tabIndex
	*/
	constructor(_elementRef, _tree, _differs, tabIndex) {
	super(_elementRef, _tree, _differs);
	this._elementRef = _elementRef;
	this._tree = _tree;
	this._differs = _differs;
	this.tabIndex = Number(tabIndex) \|\| 0;
	}
	// This is a workaround for https://github.com/angular/angular/issues/23091
	// In aot mode, the lifecycle hooks from parent class are not called.
	// TODO(tinayuangao): Remove when the angular issue #23091 is fixed
	/**
	* @return {?}
	*/
	ngAfterContentInit() {
	super.ngAfterContentInit();
	}
	/**
	* @return {?}
	*/
	ngOnDestroy() {
	super.ngOnDestroy();
	}
	}
	MatNestedTreeNode.decorators = [
	{ type: Directive, args: [{
	selector: 'mat-nested-tree-node',
	exportAs: 'matNestedTreeNode',
	host: {
	'[attr.aria-expanded]': 'isExpanded',
	'[attr.role]': 'role',
	'class': 'mat-nested-tree-node',
	},
	inputs: ['disabled', 'tabIndex'],
	providers: [
	{ provide: CdkNestedTreeNode, useExisting: MatNestedTreeNode },
	{ provide: CdkTreeNode, useExisting: MatNestedTreeNode },
	{ provide: CDK_TREE_NODE_OUTLET_NODE, useExisting: MatNestedTreeNode }
	]
	},] },
	];
	/** @nocollapse */
	MatNestedTreeNode.ctorParameters = () => [
	{ type: ElementRef },
	{ type: CdkTree },
	{ type: IterableDiffers },
	{ type: String, decorators: [{ type: Attribute, args: ['tabindex',] }] }
	];
	MatNestedTreeNode.propDecorators = {
	node: [{ type: Input, args: ['matNestedTreeNode',] }],
	nodeOutlet: [{ type: ContentChildren, args: [MatTreeNodeOutlet, {
	// We need to use `descendants: true`, because Ivy will no longer match
	// indirect descendants if it's left as false.
	descendants: true
	},] }]
	};

	/**
	* @fileoverview added by tsickle
	* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
	*/
	/**
	* Wrapper for the CdkTree padding with Material design styles.
	* @template T
	*/
	class MatTreeNodePadding extends CdkTreeNodePadding {
	}
	MatTreeNodePadding.decorators = [
	{ type: Directive, args: [{
	selector: '[matTreeNodePadding]',
	providers: [{ provide: CdkTreeNodePadding, useExisting: MatTreeNodePadding }]
	},] },
	];
	MatTreeNodePadding.propDecorators = {
	level: [{ type: Input, args: ['matTreeNodePadding',] }],
	indent: [{ type: Input, args: ['matTreeNodePaddingIndent',] }]
	};

	/**
	* @fileoverview added by tsickle
	* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
	*/
	/**
	* Wrapper for the CdkTable with Material design styles.
	* @template T
	*/
	class MatTree extends CdkTree {
	}
	MatTree.decorators = [
	{ type: Component, args: [{selector: 'mat-tree',
	exportAs: 'matTree',
	template: `<ng-container matTreeNodeOutlet></ng-container>`,
	host: {
	'class': 'mat-tree',
	'role': 'tree',
	},
	styles: [".mat-tree{display:block}.mat-tree-node{display:flex;align-items:center;min-height:48px;flex:1;overflow:hidden;word-wrap:break-word}.mat-nested-tree-ndoe{border-bottom-width:0}"],
	encapsulation: ViewEncapsulation.None,
	// See note on CdkTree for explanation on why this uses the default change detection strategy.
	// tslint:disable-next-line:validate-decorators
	changeDetection: ChangeDetectionStrategy.Default,
	providers: [{ provide: CdkTree, useExisting: MatTree }]
	},] },
	];
	MatTree.propDecorators = {
	_nodeOutlet: [{ type: ViewChild, args: [MatTreeNodeOutlet, { static: true },] }]
	};

	/**
	* @fileoverview added by tsickle
	* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
	*/
	/**
	* Wrapper for the CdkTree's toggle with Material design styles.
	* @template T
	*/
	class MatTreeNodeToggle extends CdkTreeNodeToggle {
	constructor() {
	super(...arguments);
	this.recursive = false;
	}
	}
	MatTreeNodeToggle.decorators = [
	{ type: Directive, args: [{
	selector: '[matTreeNodeToggle]',
	providers: [{ provide: CdkTreeNodeToggle, useExisting: MatTreeNodeToggle }]
	},] },
	];
	MatTreeNodeToggle.propDecorators = {
	recursive: [{ type: Input, args: ['matTreeNodeToggleRecursive',] }]
	};

	/**
	* @fileoverview added by tsickle
	* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
	*/
	/** @type {?} */
	const MAT_TREE_DIRECTIVES = [
	MatNestedTreeNode,
	MatTreeNodeDef,
	MatTreeNodePadding,
	MatTreeNodeToggle,
	MatTree,
	MatTreeNode,
	MatTreeNodeOutlet
	];
	class MatTreeModule {
	}
	MatTreeModule.decorators = [
	{ type: NgModule, args: [{
	imports: [CdkTreeModule, CommonModule, MatCommonModule],
	exports: MAT_TREE_DIRECTIVES,
	declarations: MAT_TREE_DIRECTIVES,
	},] },
	];

	/**
	* @fileoverview added by tsickle
	* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
	*/
	/**
	* Tree flattener to convert a normal type of node to node with children & level information.
	* Transform nested nodes of type `T` to flattened nodes of type `F`.
	*
	* For example, the input data of type `T` is nested, and contains its children data:
	* SomeNode: {
	* key: 'Fruits',
	* children: [
	* NodeOne: {
	* key: 'Apple',
	* },
	* NodeTwo: {
	* key: 'Pear',
	* }
	* ]
	* }
	* After flattener flatten the tree, the structure will become
	* SomeNode: {
	* key: 'Fruits',
	* expandable: true,
	* level: 1
	* },
	* NodeOne: {
	* key: 'Apple',
	* expandable: false,
	* level: 2
	* },
	* NodeTwo: {
	* key: 'Pear',
	* expandable: false,
	* level: 2
	* }
	* and the output flattened type is `F` with additional information.
	* @template T, F
	*/
	class MatTreeFlattener {
	/**
	* @param {?} transformFunction
	* @param {?} getLevel
	* @param {?} isExpandable
	* @param {?} getChildren
	*/
	constructor(transformFunction, getLevel, isExpandable, getChildren) {
	this.transformFunction = transformFunction;
	this.getLevel = getLevel;
	this.isExpandable = isExpandable;
	this.getChildren = getChildren;
	}
	/**
	* @param {?} node
	* @param {?} level
	* @param {?} resultNodes
	* @param {?} parentMap
	* @return {?}
	*/
	_flattenNode(node, level, resultNodes, parentMap) {
	/** @type {?} */
	const flatNode = this.transformFunction(node, level);
	resultNodes.push(flatNode);
	if (this.isExpandable(flatNode)) {
	/** @type {?} */
	const childrenNodes = this.getChildren(node);
	if (childrenNodes) {
	if (Array.isArray(childrenNodes)) {
	this._flattenChildren(childrenNodes, level, resultNodes, parentMap);
	}
	else {
	childrenNodes.pipe(take(1)).subscribe((/**
	* @param {?} children
	* @return {?}
	*/
	children => {
	this._flattenChildren(children, level, resultNodes, parentMap);
	}));
	}
	}
	}
	return resultNodes;
	}
	/**
	* @param {?} children
	* @param {?} level
	* @param {?} resultNodes
	* @param {?} parentMap
	* @return {?}
	*/
	_flattenChildren(children, level, resultNodes, parentMap) {
	children.forEach((/**
	* @param {?} child
	* @param {?} index
	* @return {?}
	*/
	(child, index) => {
	/** @type {?} */
	let childParentMap = parentMap.slice();
	childParentMap.push(index != children.length - 1);
	this._flattenNode(child, level + 1, resultNodes, childParentMap);
	}));
	}
	/**
	* Flatten a list of node type T to flattened version of node F.
	* Please note that type T may be nested, and the length of `structuredData` may be different
	* from that of returned list `F[]`.
	* @param {?} structuredData
	* @return {?}
	*/
	flattenNodes(structuredData) {
	/** @type {?} */
	let resultNodes = [];
	structuredData.forEach((/**
	* @param {?} node
	* @return {?}
	*/
	node => this._flattenNode(node, 0, resultNodes, [])));
	return resultNodes;
	}
	/**
	* Expand flattened node with current expansion status.
	* The returned list may have different length.
	* @param {?} nodes
	* @param {?} treeControl
	* @return {?}
	*/
	expandFlattenedNodes(nodes, treeControl) {
	/** @type {?} */
	let results = [];
	/** @type {?} */
	let currentExpand = [];
	currentExpand[0] = true;
	nodes.forEach((/**
	* @param {?} node
	* @return {?}
	*/
	node => {
	/** @type {?} */
	let expand = true;
	for (let i = 0; i <= this.getLevel(node); i++) {
	expand = expand && currentExpand[i];
	}
	if (expand) {
	results.push(node);
	}
	if (this.isExpandable(node)) {
	currentExpand[this.getLevel(node) + 1] = treeControl.isExpanded(node);
	}
	}));
	return results;
	}
	}
	/**
	* Data source for flat tree.
	* The data source need to handle expansion/collapsion of the tree node and change the data feed
	* to `MatTree`.
	* The nested tree nodes of type `T` are flattened through `MatTreeFlattener`, and converted
	* to type `F` for `MatTree` to consume.
	* @template T, F
	*/
	class MatTreeFlatDataSource extends DataSource {
	/**
	* @param {?} _treeControl
	* @param {?} _treeFlattener
	* @param {?=} initialData
	*/
	constructor(_treeControl, _treeFlattener, initialData = []) {
	super();
	this._treeControl = _treeControl;
	this._treeFlattener = _treeFlattener;
	this._flattenedData = new BehaviorSubject([]);
	this._expandedData = new BehaviorSubject([]);
	this._data = new BehaviorSubject(initialData);
	}
	/**
	* @return {?}
	*/
	get data() { return this._data.value; }
	/**
	* @param {?} value
	* @return {?}
	*/
	set data(value) {
	this._data.next(value);
	this._flattenedData.next(this._treeFlattener.flattenNodes(this.data));
	this._treeControl.dataNodes = this._flattenedData.value;
	}
	/**
	* @param {?} collectionViewer
	* @return {?}
	*/
	connect(collectionViewer) {
	/** @type {?} */
	const changes = [
	collectionViewer.viewChange,
	this._treeControl.expansionModel.onChange,
	this._flattenedData
	];
	return merge(...changes).pipe(map((/**
	* @return {?}
	*/
	() => {
	this._expandedData.next(this._treeFlattener.expandFlattenedNodes(this._flattenedData.value, this._treeControl));
	return this._expandedData.value;
	})));
	}
	/**
	* @return {?}
	*/
	disconnect() {
	// no op
	}
	}

	/**
	* @fileoverview added by tsickle
	* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
	*/
	/**
	* Data source for nested tree.
	*
	* The data source for nested tree doesn't have to consider node flattener, or the way to expand
	* or collapse. The expansion/collapsion will be handled by TreeControl and each non-leaf node.
	* @template T
	*/
	class MatTreeNestedDataSource extends DataSource {
	constructor() {
	super(...arguments);
	this._data = new BehaviorSubject([]);
	}
	/**
	* Data for the nested tree
	* @return {?}
	*/
	get data() { return this._data.value; }
	/**
	* @param {?} value
	* @return {?}
	*/
	set data(value) { this._data.next(value); }
	/**
	* @param {?} collectionViewer
	* @return {?}
	*/
	connect(collectionViewer) {
	return merge(...[collectionViewer.viewChange, this._data])
	.pipe(map((/**
	* @return {?}
	*/
	() => {
	return this.data;
	})));
	}
	/**
	* @return {?}
	*/
	disconnect() {
	// no op
	}
	}

	/**
	* @fileoverview added by tsickle
	* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
	*/

	/**
	* @fileoverview added by tsickle
	* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
	*/

	export { MatTreeNode, MatTreeNodeDef, MatNestedTreeNode, MatTreeNodePadding, MatTree, MatTreeModule, MatTreeNodeToggle, MatTreeNodeOutlet, MatTreeFlattener, MatTreeFlatDataSource, MatTreeNestedDataSource };
	//# sourceMappingURL=tree.js.map