1 | /**
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2 | * @license
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3 | * Copyright Google LLC All Rights Reserved.
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4 | *
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5 | * Use of this source code is governed by an MIT-style license that can be
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6 | * found in the LICENSE file at https://angular.io/license
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7 | */
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8 | import { Directionality } from '@angular/cdk/bidi';
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9 | import { NumberInput } from '@angular/cdk/coercion';
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10 | import { ElementRef, OnDestroy } from '@angular/core';
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11 | import { CdkTree, CdkTreeNode } from './tree';
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12 | /**
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13 | * Indent for the children tree dataNodes.
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14 | * This directive will add left-padding to the node to show hierarchy.
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15 | */
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16 | export declare class CdkTreeNodePadding<T, K = T> implements OnDestroy {
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17 | private _treeNode;
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18 | private _tree;
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19 | private _element;
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20 | private _dir;
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21 | /** Current padding value applied to the element. Used to avoid unnecessarily hitting the DOM. */
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22 | private _currentPadding;
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23 | /** Subject that emits when the component has been destroyed. */
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24 | private readonly _destroyed;
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25 | /** CSS units used for the indentation value. */
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26 | indentUnits: string;
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27 | /** The level of depth of the tree node. The padding will be `level * indent` pixels. */
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28 | get level(): number;
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29 | set level(value: number);
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30 | _level: number;
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31 | /**
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32 | * The indent for each level. Can be a number or a CSS string.
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33 | * Default number 40px from material design menu sub-menu spec.
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34 | */
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35 | get indent(): number | string;
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36 | set indent(indent: number | string);
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37 | _indent: number;
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38 | constructor(_treeNode: CdkTreeNode<T, K>, _tree: CdkTree<T, K>, _element: ElementRef<HTMLElement>, _dir: Directionality);
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39 | ngOnDestroy(): void;
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40 | /** The padding indent value for the tree node. Returns a string with px numbers if not null. */
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41 | _paddingIndent(): string | null;
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42 | _setPadding(forceChange?: boolean): void;
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43 | /**
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44 | * This has been extracted to a util because of TS 4 and VE.
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45 | * View Engine doesn't support property rename inheritance.
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46 | * TS 4.0 doesn't allow properties to override accessors or vice-versa.
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47 | * @docs-private
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48 | */
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49 | protected _setLevelInput(value: number): void;
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50 | /**
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51 | * This has been extracted to a util because of TS 4 and VE.
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52 | * View Engine doesn't support property rename inheritance.
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53 | * TS 4.0 doesn't allow properties to override accessors or vice-versa.
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54 | * @docs-private
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55 | */
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56 | protected _setIndentInput(indent: number | string): void;
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57 | static ngAcceptInputType_level: NumberInput;
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58 | }
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