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@angular/flex-layout

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/** * @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 { Directive, Injectable, Inject, } from '@angular/core'; import { BaseDirective2, StyleBuilder, LAYOUT_CONFIG, ɵmultiply as multiply, } from '@angular/flex-layout/core'; import { LAYOUT_VALUES } from '@angular/flex-layout/_private-utils'; import { Subject } from 'rxjs'; import { takeUntil } from 'rxjs/operators'; import * as i0 from "@angular/core"; import * as i1 from "@angular/flex-layout/core"; import * as i2 from "@angular/cdk/bidi"; const CLEAR_MARGIN_CSS = { 'margin-left': null, 'margin-right': null, 'margin-top': null, 'margin-bottom': null }; export class LayoutGapStyleBuilder extends StyleBuilder { constructor(_styler, _config) { super(); this._styler = _styler; this._config = _config; } buildStyles(gapValue, parent) { if (gapValue.endsWith(GRID_SPECIFIER)) { gapValue = gapValue.slice(0, gapValue.indexOf(GRID_SPECIFIER)); gapValue = multiply(gapValue, this._config.multiplier); // Add the margin to the host element return buildGridMargin(gapValue, parent.directionality); } else { return {}; } } sideEffect(gapValue, _styles, parent) { const items = parent.items; if (gapValue.endsWith(GRID_SPECIFIER)) { gapValue = gapValue.slice(0, gapValue.indexOf(GRID_SPECIFIER)); gapValue = multiply(gapValue, this._config.multiplier); // For each `element` children, set the padding const paddingStyles = buildGridPadding(gapValue, parent.directionality); this._styler.applyStyleToElements(paddingStyles, parent.items); } else { gapValue = multiply(gapValue, this._config.multiplier); gapValue = this.addFallbackUnit(gapValue); const lastItem = items.pop(); // For each `element` children EXCEPT the last, // set the margin right/bottom styles... const gapCss = buildGapCSS(gapValue, parent); this._styler.applyStyleToElements(gapCss, items); // Clear all gaps for all visible elements this._styler.applyStyleToElements(CLEAR_MARGIN_CSS, [lastItem]); } } addFallbackUnit(value) { return !isNaN(+value) ? `${value}${this._config.defaultUnit}` : value; } } LayoutGapStyleBuilder.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.0.2", ngImport: i0, type: LayoutGapStyleBuilder, deps: [{ token: i1.StyleUtils }, { token: LAYOUT_CONFIG }], target: i0.ɵɵFactoryTarget.Injectable }); LayoutGapStyleBuilder.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "15.0.2", ngImport: i0, type: LayoutGapStyleBuilder, providedIn: 'root' }); i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.0.2", ngImport: i0, type: LayoutGapStyleBuilder, decorators: [{ type: Injectable, args: [{ providedIn: 'root' }] }], ctorParameters: function () { return [{ type: i1.StyleUtils }, { type: undefined, decorators: [{ type: Inject, args: [LAYOUT_CONFIG] }] }]; } }); const inputs = [ 'fxLayoutGap', 'fxLayoutGap.xs', 'fxLayoutGap.sm', 'fxLayoutGap.md', 'fxLayoutGap.lg', 'fxLayoutGap.xl', 'fxLayoutGap.lt-sm', 'fxLayoutGap.lt-md', 'fxLayoutGap.lt-lg', 'fxLayoutGap.lt-xl', 'fxLayoutGap.gt-xs', 'fxLayoutGap.gt-sm', 'fxLayoutGap.gt-md', 'fxLayoutGap.gt-lg' ]; const selector = ` [fxLayoutGap], [fxLayoutGap.xs], [fxLayoutGap.sm], [fxLayoutGap.md], [fxLayoutGap.lg], [fxLayoutGap.xl], [fxLayoutGap.lt-sm], [fxLayoutGap.lt-md], [fxLayoutGap.lt-lg], [fxLayoutGap.lt-xl], [fxLayoutGap.gt-xs], [fxLayoutGap.gt-sm], [fxLayoutGap.gt-md], [fxLayoutGap.gt-lg] `; /** * 'layout-padding' styling directive * Defines padding of child elements in a layout container */ export class LayoutGapDirective extends BaseDirective2 { constructor(elRef, zone, directionality, styleUtils, styleBuilder, marshal) { super(elRef, styleBuilder, styleUtils, marshal); this.zone = zone; this.directionality = directionality; this.styleUtils = styleUtils; this.layout = 'row'; // default flex-direction this.DIRECTIVE_KEY = 'layout-gap'; this.observerSubject = new Subject(); const extraTriggers = [this.directionality.change, this.observerSubject.asObservable()]; this.init(extraTriggers); this.marshal .trackValue(this.nativeElement, 'layout') .pipe(takeUntil(this.destroySubject)) .subscribe(this.onLayoutChange.bind(this)); } /** Special accessor to query for all child 'element' nodes regardless of type, class, etc */ get childrenNodes() { const obj = this.nativeElement.children; const buffer = []; // iterate backwards ensuring that length is an UInt32 for (let i = obj.length; i--;) { buffer[i] = obj[i]; } return buffer; } // ********************************************* // Lifecycle Methods // ********************************************* ngAfterContentInit() { this.buildChildObservable(); this.triggerUpdate(); } ngOnDestroy() { super.ngOnDestroy(); if (this.observer) { this.observer.disconnect(); } } // ********************************************* // Protected methods // ********************************************* /** * Cache the parent container 'flex-direction' and update the 'margin' styles */ onLayoutChange(matcher) { const layout = matcher.value; // Make sure to filter out 'wrap' option const direction = layout.split(' '); this.layout = direction[0]; if (!LAYOUT_VALUES.find(x => x === this.layout)) { this.layout = 'row'; } this.triggerUpdate(); } /** * */ updateWithValue(value) { // Gather all non-hidden Element nodes const items = this.childrenNodes .filter(el => el.nodeType === 1 && this.willDisplay(el)) .sort((a, b) => { const orderA = +this.styler.lookupStyle(a, 'order'); const orderB = +this.styler.lookupStyle(b, 'order'); if (isNaN(orderA) || isNaN(orderB) || orderA === orderB) { return 0; } else { return orderA > orderB ? 1 : -1; } }); if (items.length > 0) { const directionality = this.directionality.value; const layout = this.layout; if (layout === 'row' && directionality === 'rtl') { this.styleCache = layoutGapCacheRowRtl; } else if (layout === 'row' && directionality !== 'rtl') { this.styleCache = layoutGapCacheRowLtr; } else if (layout === 'column' && directionality === 'rtl') { this.styleCache = layoutGapCacheColumnRtl; } else if (layout === 'column' && directionality !== 'rtl') { this.styleCache = layoutGapCacheColumnLtr; } this.addStyles(value, { directionality, items, layout }); } } /** We need to override clearStyles because in most cases mru isn't populated */ clearStyles() { const gridMode = Object.keys(this.mru).length > 0; const childrenStyle = gridMode ? 'padding' : getMarginType(this.directionality.value, this.layout); // If there are styles on the parent remove them if (gridMode) { super.clearStyles(); } // Then remove the children styles too this.styleUtils.applyStyleToElements({ [childrenStyle]: '' }, this.childrenNodes); } /** Determine if an element will show or hide based on current activation */ willDisplay(source) { const value = this.marshal.getValue(source, 'show-hide'); return value === true || (value === undefined && this.styleUtils.lookupStyle(source, 'display') !== 'none'); } buildChildObservable() { this.zone.runOutsideAngular(() => { if (typeof MutationObserver !== 'undefined') { this.observer = new MutationObserver((mutations) => { const validatedChanges = (it) => { return (it.addedNodes && it.addedNodes.length > 0) || (it.removedNodes && it.removedNodes.length > 0); }; // update gap styles only for child 'added' or 'removed' events if (mutations.some(validatedChanges)) { this.observerSubject.next(); } }); this.observer.observe(this.nativeElement, { childList: true }); } }); } } LayoutGapDirective.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.0.2", ngImport: i0, type: LayoutGapDirective, deps: [{ token: i0.ElementRef }, { token: i0.NgZone }, { token: i2.Directionality }, { token: i1.StyleUtils }, { token: LayoutGapStyleBuilder }, { token: i1.MediaMarshaller }], target: i0.ɵɵFactoryTarget.Directive }); LayoutGapDirective.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "15.0.2", type: LayoutGapDirective, usesInheritance: true, ngImport: i0 }); i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.0.2", ngImport: i0, type: LayoutGapDirective, decorators: [{ type: Directive }], ctorParameters: function () { return [{ type: i0.ElementRef }, { type: i0.NgZone }, { type: i2.Directionality }, { type: i1.StyleUtils }, { type: LayoutGapStyleBuilder }, { type: i1.MediaMarshaller }]; } }); export class DefaultLayoutGapDirective extends LayoutGapDirective { constructor() { super(...arguments); this.inputs = inputs; } } DefaultLayoutGapDirective.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.0.2", ngImport: i0, type: DefaultLayoutGapDirective, deps: null, target: i0.ɵɵFactoryTarget.Directive }); DefaultLayoutGapDirective.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "15.0.2", type: DefaultLayoutGapDirective, selector: "\n [fxLayoutGap], [fxLayoutGap.xs], [fxLayoutGap.sm], [fxLayoutGap.md],\n [fxLayoutGap.lg], [fxLayoutGap.xl], [fxLayoutGap.lt-sm], [fxLayoutGap.lt-md],\n [fxLayoutGap.lt-lg], [fxLayoutGap.lt-xl], [fxLayoutGap.gt-xs], [fxLayoutGap.gt-sm],\n [fxLayoutGap.gt-md], [fxLayoutGap.gt-lg]\n", inputs: { fxLayoutGap: "fxLayoutGap", "fxLayoutGap.xs": "fxLayoutGap.xs", "fxLayoutGap.sm": "fxLayoutGap.sm", "fxLayoutGap.md": "fxLayoutGap.md", "fxLayoutGap.lg": "fxLayoutGap.lg", "fxLayoutGap.xl": "fxLayoutGap.xl", "fxLayoutGap.lt-sm": "fxLayoutGap.lt-sm", "fxLayoutGap.lt-md": "fxLayoutGap.lt-md", "fxLayoutGap.lt-lg": "fxLayoutGap.lt-lg", "fxLayoutGap.lt-xl": "fxLayoutGap.lt-xl", "fxLayoutGap.gt-xs": "fxLayoutGap.gt-xs", "fxLayoutGap.gt-sm": "fxLayoutGap.gt-sm", "fxLayoutGap.gt-md": "fxLayoutGap.gt-md", "fxLayoutGap.gt-lg": "fxLayoutGap.gt-lg" }, usesInheritance: true, ngImport: i0 }); i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.0.2", ngImport: i0, type: DefaultLayoutGapDirective, decorators: [{ type: Directive, args: [{ selector, inputs }] }] }); const layoutGapCacheRowRtl = new Map(); const layoutGapCacheColumnRtl = new Map(); const layoutGapCacheRowLtr = new Map(); const layoutGapCacheColumnLtr = new Map(); const GRID_SPECIFIER = ' grid'; function buildGridPadding(value, directionality) { const [between, below] = value.split(' '); const bottom = below ?? between; let paddingRight = '0px', paddingBottom = bottom, paddingLeft = '0px'; if (directionality === 'rtl') { paddingLeft = between; } else { paddingRight = between; } return { 'padding': `0px ${paddingRight} ${paddingBottom} ${paddingLeft}` }; } function buildGridMargin(value, directionality) { const [between, below] = value.split(' '); const bottom = below ?? between; const minus = (str) => `-${str}`; let marginRight = '0px', marginBottom = minus(bottom), marginLeft = '0px'; if (directionality === 'rtl') { marginLeft = minus(between); } else { marginRight = minus(between); } return { 'margin': `0px ${marginRight} ${marginBottom} ${marginLeft}` }; } function getMarginType(directionality, layout) { switch (layout) { case 'column': return 'margin-bottom'; case 'column-reverse': return 'margin-top'; case 'row': return directionality === 'rtl' ? 'margin-left' : 'margin-right'; case 'row-reverse': return directionality === 'rtl' ? 'margin-right' : 'margin-left'; default: return directionality === 'rtl' ? 'margin-left' : 'margin-right'; } } function buildGapCSS(gapValue, parent) { const key = getMarginType(parent.directionality, parent.layout); const margins = { ...CLEAR_MARGIN_CSS }; margins[key] = gapValue; return margins; } //# 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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport {\n  Directive,\n  ElementRef,\n  OnDestroy,\n  NgZone,\n  Injectable,\n  AfterContentInit,\n  Inject,\n} from '@angular/core';\nimport {Directionality} from '@angular/cdk/bidi';\nimport {\n  BaseDirective2,\n  StyleBuilder,\n  StyleDefinition,\n  StyleUtils,\n  MediaMarshaller,\n  ElementMatcher,\n  LAYOUT_CONFIG,\n  LayoutConfigOptions,\n  ɵmultiply as multiply,\n} from '@angular/flex-layout/core';\nimport {LAYOUT_VALUES} from '@angular/flex-layout/_private-utils';\nimport {Subject} from 'rxjs';\nimport {takeUntil} from 'rxjs/operators';\n\n\nexport interface LayoutGapParent {\n  directionality: string;\n  items: HTMLElement[];\n  layout: string;\n}\n\nconst CLEAR_MARGIN_CSS = {\n  'margin-left': null,\n  'margin-right': null,\n  'margin-top': null,\n  'margin-bottom': null\n};\n\n@Injectable({providedIn: 'root'})\nexport class LayoutGapStyleBuilder extends StyleBuilder {\n  constructor(private _styler: StyleUtils,\n              @Inject(LAYOUT_CONFIG) private _config: LayoutConfigOptions) {\n    super();\n  }\n\n  buildStyles(gapValue: string, parent: LayoutGapParent) {\n    if (gapValue.endsWith(GRID_SPECIFIER)) {\n      gapValue = gapValue.slice(0, gapValue.indexOf(GRID_SPECIFIER));\n      gapValue = multiply(gapValue, this._config.multiplier);\n\n      // Add the margin to the host element\n      return buildGridMargin(gapValue, parent.directionality);\n    } else {\n      return {};\n    }\n  }\n\n  override sideEffect(gapValue: string, _styles: StyleDefinition, parent: LayoutGapParent) {\n    const items = parent.items;\n    if (gapValue.endsWith(GRID_SPECIFIER)) {\n      gapValue = gapValue.slice(0, gapValue.indexOf(GRID_SPECIFIER));\n      gapValue = multiply(gapValue, this._config.multiplier);\n      // For each `element` children, set the padding\n      const paddingStyles = buildGridPadding(gapValue, parent.directionality);\n      this._styler.applyStyleToElements(paddingStyles, parent.items);\n    } else {\n      gapValue = multiply(gapValue, this._config.multiplier);\n      gapValue = this.addFallbackUnit(gapValue);\n\n      const lastItem = items.pop()!;\n\n      // For each `element` children EXCEPT the last,\n      // set the margin right/bottom styles...\n      const gapCss = buildGapCSS(gapValue, parent);\n      this._styler.applyStyleToElements(gapCss, items);\n\n      // Clear all gaps for all visible elements\n      this._styler.applyStyleToElements(CLEAR_MARGIN_CSS, [lastItem]);\n    }\n  }\n\n  private addFallbackUnit(value: string) {\n    return !isNaN(+value) ? `${value}${this._config.defaultUnit}` : value;\n  }\n}\n\nconst inputs = [\n  'fxLayoutGap', 'fxLayoutGap.xs', 'fxLayoutGap.sm', 'fxLayoutGap.md',\n  'fxLayoutGap.lg', 'fxLayoutGap.xl', 'fxLayoutGap.lt-sm', 'fxLayoutGap.lt-md',\n  'fxLayoutGap.lt-lg', 'fxLayoutGap.lt-xl', 'fxLayoutGap.gt-xs', 'fxLayoutGap.gt-sm',\n  'fxLayoutGap.gt-md', 'fxLayoutGap.gt-lg'\n];\nconst selector = `\n  [fxLayoutGap], [fxLayoutGap.xs], [fxLayoutGap.sm], [fxLayoutGap.md],\n  [fxLayoutGap.lg], [fxLayoutGap.xl], [fxLayoutGap.lt-sm], [fxLayoutGap.lt-md],\n  [fxLayoutGap.lt-lg], [fxLayoutGap.lt-xl], [fxLayoutGap.gt-xs], [fxLayoutGap.gt-sm],\n  [fxLayoutGap.gt-md], [fxLayoutGap.gt-lg]\n`;\n\n/**\n * 'layout-padding' styling directive\n *  Defines padding of child elements in a layout container\n */\n@Directive()\nexport class LayoutGapDirective extends BaseDirective2 implements AfterContentInit, OnDestroy {\n  protected layout = 'row';  // default flex-direction\n  protected override DIRECTIVE_KEY = 'layout-gap';\n  protected observerSubject = new Subject<void>();\n\n  /** Special accessor to query for all child 'element' nodes regardless of type, class, etc */\n  protected get childrenNodes(): HTMLElement[] {\n    const obj = this.nativeElement.children;\n    const buffer: any[] = [];\n\n    // iterate backwards ensuring that length is an UInt32\n    for (let i = obj.length; i--;) {\n      buffer[i] = obj[i];\n    }\n    return buffer;\n  }\n\n  constructor(elRef: ElementRef,\n              protected zone: NgZone,\n              protected directionality: Directionality,\n              protected styleUtils: StyleUtils,\n              styleBuilder: LayoutGapStyleBuilder,\n              marshal: MediaMarshaller) {\n    super(elRef, styleBuilder, styleUtils, marshal);\n    const extraTriggers = [this.directionality.change, this.observerSubject.asObservable()];\n    this.init(extraTriggers);\n    this.marshal\n      .trackValue(this.nativeElement, 'layout')\n      .pipe(takeUntil(this.destroySubject))\n      .subscribe(this.onLayoutChange.bind(this));\n  }\n\n  // *********************************************\n  // Lifecycle Methods\n  // *********************************************\n\n  ngAfterContentInit() {\n    this.buildChildObservable();\n    this.triggerUpdate();\n  }\n\n  override ngOnDestroy() {\n    super.ngOnDestroy();\n    if (this.observer) {\n      this.observer.disconnect();\n    }\n  }\n\n  // *********************************************\n  // Protected methods\n  // *********************************************\n\n  /**\n   * Cache the parent container 'flex-direction' and update the 'margin' styles\n   */\n  protected onLayoutChange(matcher: ElementMatcher) {\n    const layout: string = matcher.value;\n    // Make sure to filter out 'wrap' option\n    const direction = layout.split(' ');\n    this.layout = direction[0];\n    if (!LAYOUT_VALUES.find(x => x === this.layout)) {\n      this.layout = 'row';\n    }\n    this.triggerUpdate();\n  }\n\n  /**\n   *\n   */\n  protected override updateWithValue(value: string) {\n    // Gather all non-hidden Element nodes\n    const items = this.childrenNodes\n      .filter(el => el.nodeType === 1 && this.willDisplay(el))\n      .sort((a, b) => {\n        const orderA = +this.styler.lookupStyle(a, 'order');\n        const orderB = +this.styler.lookupStyle(b, 'order');\n        if (isNaN(orderA) || isNaN(orderB) || orderA === orderB) {\n          return 0;\n        } else {\n          return orderA > orderB ? 1 : -1;\n        }\n      });\n\n    if (items.length > 0) {\n      const directionality = this.directionality.value;\n      const layout = this.layout;\n      if (layout === 'row' && directionality === 'rtl') {\n        this.styleCache = layoutGapCacheRowRtl;\n      } else if (layout === 'row' && directionality !== 'rtl') {\n        this.styleCache = layoutGapCacheRowLtr;\n      } else if (layout === 'column' && directionality === 'rtl') {\n        this.styleCache = layoutGapCacheColumnRtl;\n      } else if (layout === 'column' && directionality !== 'rtl') {\n        this.styleCache = layoutGapCacheColumnLtr;\n      }\n      this.addStyles(value, {directionality, items, layout});\n    }\n  }\n\n  /** We need to override clearStyles because in most cases mru isn't populated */\n  protected override clearStyles() {\n    const gridMode = Object.keys(this.mru).length > 0;\n    const childrenStyle = gridMode ? 'padding' :\n      getMarginType(this.directionality.value, this.layout);\n\n    // If there are styles on the parent remove them\n    if (gridMode) {\n      super.clearStyles();\n    }\n\n    // Then remove the children styles too\n    this.styleUtils.applyStyleToElements({[childrenStyle]: ''}, this.childrenNodes);\n  }\n\n  /** Determine if an element will show or hide based on current activation */\n  protected willDisplay(source: HTMLElement): boolean {\n    const value = this.marshal.getValue(source, 'show-hide');\n    return value === true ||\n      (value === undefined && this.styleUtils.lookupStyle(source, 'display') !== 'none');\n  }\n\n  protected buildChildObservable(): void {\n    this.zone.runOutsideAngular(() => {\n      if (typeof MutationObserver !== 'undefined') {\n        this.observer = new MutationObserver((mutations: MutationRecord[]) => {\n          const validatedChanges = (it: MutationRecord): boolean => {\n            return (it.addedNodes && it.addedNodes.length > 0) ||\n              (it.removedNodes && it.removedNodes.length > 0);\n          };\n\n          // update gap styles only for child 'added' or 'removed' events\n          if (mutations.some(validatedChanges)) {\n            this.observerSubject.next();\n          }\n        });\n        this.observer.observe(this.nativeElement, {childList: true});\n      }\n    });\n  }\n\n  protected observer?: MutationObserver;\n}\n\n@Directive({selector, inputs})\nexport class DefaultLayoutGapDirective extends LayoutGapDirective {\n  protected override inputs = inputs;\n}\n\nconst layoutGapCacheRowRtl: Map<string, StyleDefinition> = new Map();\nconst layoutGapCacheColumnRtl: Map<string, StyleDefinition> = new Map();\nconst layoutGapCacheRowLtr: Map<string, StyleDefinition> = new Map();\nconst layoutGapCacheColumnLtr: Map<string, StyleDefinition> = new Map();\n\nconst GRID_SPECIFIER = ' grid';\n\nfunction buildGridPadding(value: string, directionality: string): StyleDefinition {\n  const [between, below] = value.split(' ');\n  const bottom = below ?? between;\n  let paddingRight = '0px', paddingBottom = bottom, paddingLeft = '0px';\n\n  if (directionality === 'rtl') {\n    paddingLeft = between;\n  } else {\n    paddingRight = between;\n  }\n\n  return {'padding': `0px ${paddingRight} ${paddingBottom} ${paddingLeft}`};\n}\n\nfunction buildGridMargin(value: string, directionality: string): StyleDefinition {\n  const [between, below] = value.split(' ');\n  const bottom = below ?? between;\n  const minus = (str: string) => `-${str}`;\n  let marginRight = '0px', marginBottom = minus(bottom), marginLeft = '0px';\n\n  if (directionality === 'rtl') {\n    marginLeft = minus(between);\n  } else {\n    marginRight = minus(between);\n  }\n\n  return {'margin': `0px ${marginRight} ${marginBottom} ${marginLeft}`};\n}\n\nfunction getMarginType(directionality: string, layout: string) {\n  switch (layout) {\n    case 'column':\n      return 'margin-bottom';\n    case 'column-reverse':\n      return 'margin-top';\n    case 'row':\n      return directionality === 'rtl' ? 'margin-left' : 'margin-right';\n    case 'row-reverse':\n      return directionality === 'rtl' ? 'margin-right' : 'margin-left';\n    default :\n      return directionality === 'rtl' ? 'margin-left' : 'margin-right';\n  }\n}\n\nfunction buildGapCSS(gapValue: string,\n                     parent: {directionality: string, layout: string}): StyleDefinition {\n  const key = getMarginType(parent.directionality, parent.layout);\n  const margins: {[key: string]: string | null} = {...CLEAR_MARGIN_CSS};\n  margins[key] = gapValue;\n  return margins;\n}\n"]}