| /** |
| * @fileoverview added by tsickle |
| * Generated from: breadcrumbs.component.ts |
| * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingRequire,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc |
| */ |
| import { Component, ContentChildren, QueryList, ChangeDetectionStrategy, ChangeDetectorRef, ElementRef, Input, } from '@angular/core'; |
| import { Subscription, Subject, fromEvent, merge } from 'rxjs'; |
| import { debounceTime, distinctUntilChanged, startWith } from 'rxjs/operators'; |
| import { TdBreadcrumbComponent } from './breadcrumb/breadcrumb.component'; |
| export class TdBreadcrumbsComponent { |
| /** |
| * @param {?} _elementRef |
| * @param {?} _changeDetectorRef |
| */ |
| constructor(_elementRef, _changeDetectorRef) { |
| this._elementRef = _elementRef; |
| this._changeDetectorRef = _changeDetectorRef; |
| this._resizeSubscription = Subscription.EMPTY; |
| this._widthSubject = new Subject(); |
| this._resizing = false; |
| this._separatorIcon = 'chevron_right'; |
| // the list of hidden breadcrumbs not shown right now (responsive) |
| this.hiddenBreadcrumbs = []; |
| } |
| /** |
| * Sets the icon url shown between breadcrumbs. Defaults to 'chevron_right'. |
| * @param {?} separatorIcon |
| * @return {?} |
| */ |
| set separatorIcon(separatorIcon) { |
| this._separatorIcon = separatorIcon; |
| this.setCrumbIcons(); |
| } |
| /** |
| * @return {?} |
| */ |
| get separatorIcon() { |
| return this._separatorIcon; |
| } |
| /** |
| * @return {?} |
| */ |
| ngOnInit() { |
| this._resizeSubscription = merge(fromEvent(window, 'resize').pipe(debounceTime(10)), this._widthSubject.asObservable().pipe(distinctUntilChanged())).subscribe((/** |
| * @return {?} |
| */ |
| () => { |
| if (!this._resizing) { |
| this._resizing = true; |
| setTimeout((/** |
| * @return {?} |
| */ |
| () => { |
| this._calculateVisibility(); |
| this._resizing = false; |
| this._changeDetectorRef.markForCheck(); |
| }), 100); |
| } |
| })); |
| } |
| /** |
| * @return {?} |
| */ |
| ngDoCheck() { |
| if (this._elementRef && this._elementRef.nativeElement) { |
| this._widthSubject.next(this.nativeElementWidth); |
| } |
| } |
| /** |
| * @return {?} |
| */ |
| ngAfterContentInit() { |
| this._contentChildrenSub = this._breadcrumbs.changes.pipe(startWith(this._breadcrumbs)).subscribe((/** |
| * @return {?} |
| */ |
| () => { |
| this.setCrumbIcons(); |
| this._changeDetectorRef.markForCheck(); |
| })); |
| } |
| /** |
| * @return {?} |
| */ |
| ngOnDestroy() { |
| this._resizeSubscription.unsubscribe(); |
| this._contentChildrenSub.unsubscribe(); |
| } |
| /* |
| * Current width of the element container |
| */ |
| /** |
| * @return {?} |
| */ |
| get nativeElementWidth() { |
| /** @type {?} */ |
| const element = (/** @type {?} */ (this._elementRef.nativeElement)); |
| // Need to take into account border, margin and padding that might be around all the crumbs |
| /** @type {?} */ |
| const style = window.getComputedStyle(element); |
| /** @type {?} */ |
| const borderLeft = parseInt(style.borderLeft, 10); |
| /** @type {?} */ |
| const borderRight = parseInt(style.borderRight, 10); |
| /** @type {?} */ |
| const marginLeft = parseInt(style.marginLeft, 10); |
| /** @type {?} */ |
| const marginRight = parseInt(style.marginRight, 10); |
| /** @type {?} */ |
| const paddingLeft = parseInt(style.paddingLeft, 10); |
| /** @type {?} */ |
| const paddingRight = parseInt(style.paddingRight, 10); |
| return (element.getBoundingClientRect().width - |
| borderLeft - |
| borderRight - |
| marginLeft - |
| marginRight - |
| paddingLeft - |
| paddingRight); |
| } |
| /** |
| * The total count of individual breadcrumbs |
| * @return {?} |
| */ |
| get count() { |
| return this._breadcrumbs ? this._breadcrumbs.length : 0; |
| } |
| /** |
| * Set the crumb icon separators |
| * @private |
| * @return {?} |
| */ |
| setCrumbIcons() { |
| if (this._breadcrumbs) { |
| /** @type {?} */ |
| const breadcrumbArray = this._breadcrumbs.toArray(); |
| breadcrumbArray.forEach((/** |
| * @param {?} breadcrumb |
| * @param {?} index |
| * @return {?} |
| */ |
| (breadcrumb, index) => { |
| breadcrumb.separatorIcon = this.separatorIcon; |
| // don't show the icon on the last breadcrumb |
| breadcrumb.displayIcon = index < breadcrumbArray.length - 1; |
| })); |
| } |
| } |
| /** |
| * @private |
| * @return {?} |
| */ |
| _calculateVisibility() { |
| /** @type {?} */ |
| const crumbsArray = this._breadcrumbs.toArray(); |
| /** @type {?} */ |
| let crumbWidthSum = 0; |
| /** @type {?} */ |
| const hiddenCrumbs = []; |
| // loop through crumbs in reverse order to calculate which ones should be removed |
| for (let i = crumbsArray.length - 1; i >= 0; i--) { |
| /** @type {?} */ |
| const breadcrumb = crumbsArray[i]; |
| // if crumb exceeds width, then we skip it from the sum and add it into the hiddencrumbs array |
| // and hide it |
| if (crumbWidthSum + breadcrumb.width > this.nativeElementWidth) { |
| breadcrumb.displayCrumb = false; |
| hiddenCrumbs.push(breadcrumb); |
| } |
| else { |
| // else we show it |
| breadcrumb.displayCrumb = true; |
| } |
| crumbWidthSum += breadcrumb.width; |
| } |
| this.hiddenBreadcrumbs = hiddenCrumbs; |
| this._changeDetectorRef.markForCheck(); |
| } |
| } |
| TdBreadcrumbsComponent.decorators = [ |
| { type: Component, args: [{ |
| selector: 'td-breadcrumbs', |
| template: "<ng-content></ng-content>\n", |
| /* tslint:disable-next-line */ |
| host: { |
| class: 'td-breadcrumbs', |
| }, |
| changeDetection: ChangeDetectionStrategy.OnPush, |
| styles: [":host{display:block;width:100%}:host.td-breadcrumbs{white-space:nowrap}"] |
| }] } |
| ]; |
| /** @nocollapse */ |
| TdBreadcrumbsComponent.ctorParameters = () => [ |
| { type: ElementRef }, |
| { type: ChangeDetectorRef } |
| ]; |
| TdBreadcrumbsComponent.propDecorators = { |
| _breadcrumbs: [{ type: ContentChildren, args: [TdBreadcrumbComponent, { descendants: true },] }], |
| separatorIcon: [{ type: Input }] |
| }; |
| if (false) { |
| /** |
| * @type {?} |
| * @private |
| */ |
| TdBreadcrumbsComponent.prototype._resizeSubscription; |
| /** |
| * @type {?} |
| * @private |
| */ |
| TdBreadcrumbsComponent.prototype._widthSubject; |
| /** |
| * @type {?} |
| * @private |
| */ |
| TdBreadcrumbsComponent.prototype._contentChildrenSub; |
| /** |
| * @type {?} |
| * @private |
| */ |
| TdBreadcrumbsComponent.prototype._resizing; |
| /** |
| * @type {?} |
| * @private |
| */ |
| TdBreadcrumbsComponent.prototype._separatorIcon; |
| /** @type {?} */ |
| TdBreadcrumbsComponent.prototype._breadcrumbs; |
| /** @type {?} */ |
| TdBreadcrumbsComponent.prototype.hiddenBreadcrumbs; |
| /** |
| * @type {?} |
| * @private |
| */ |
| TdBreadcrumbsComponent.prototype._elementRef; |
| /** |
| * @type {?} |
| * @private |
| */ |
| TdBreadcrumbsComponent.prototype._changeDetectorRef; |
| } |
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{\n  Component,\n  ContentChildren,\n  QueryList,\n  OnInit,\n  OnDestroy,\n  ChangeDetectionStrategy,\n  AfterContentInit,\n  DoCheck,\n  ChangeDetectorRef,\n  ElementRef,\n  Input,\n} from '@angular/core';\n\nimport { Subscription, Subject, fromEvent, merge } from 'rxjs';\nimport { debounceTime, distinctUntilChanged, startWith } from 'rxjs/operators';\n\nimport { TdBreadcrumbComponent } from './breadcrumb/breadcrumb.component';\n\n@Component({\n  selector: 'td-breadcrumbs',\n  styleUrls: ['./breadcrumbs.component.scss'],\n  templateUrl: './breadcrumbs.component.html',\n  /* tslint:disable-next-line */\n  host: {\n    class: 'td-breadcrumbs',\n  },\n  changeDetection: ChangeDetectionStrategy.OnPush,\n})\nexport class TdBreadcrumbsComponent implements OnInit, DoCheck, AfterContentInit, OnDestroy {\n  private _resizeSubscription: Subscription = Subscription.EMPTY;\n  private _widthSubject: Subject<number> = new Subject<number>();\n  private _contentChildrenSub: Subscription;\n  private _resizing: boolean = false;\n  private _separatorIcon: string = 'chevron_right';\n\n  // all the sub components, which are the individual breadcrumbs\n  @ContentChildren(TdBreadcrumbComponent, { descendants: true }) _breadcrumbs: QueryList<TdBreadcrumbComponent>;\n  // the list of hidden breadcrumbs not shown right now (responsive)\n  hiddenBreadcrumbs: TdBreadcrumbComponent[] = [];\n\n  /**\n   * Sets the icon url shown between breadcrumbs. Defaults to 'chevron_right'.\n   */\n  @Input() public set separatorIcon(separatorIcon: string) {\n    this._separatorIcon = separatorIcon;\n    this.setCrumbIcons();\n  }\n  public get separatorIcon(): string {\n    return this._separatorIcon;\n  }\n\n  constructor(private _elementRef: ElementRef, private _changeDetectorRef: ChangeDetectorRef) {}\n\n  ngOnInit(): void {\n    this._resizeSubscription = merge(\n      fromEvent(window, 'resize').pipe(debounceTime(10)),\n      this._widthSubject.asObservable().pipe(distinctUntilChanged()),\n    ).subscribe(() => {\n      if (!this._resizing) {\n        this._resizing = true;\n        setTimeout(() => {\n          this._calculateVisibility();\n          this._resizing = false;\n          this._changeDetectorRef.markForCheck();\n        }, 100);\n      }\n    });\n  }\n\n  ngDoCheck(): void {\n    if (this._elementRef && this._elementRef.nativeElement) {\n      this._widthSubject.next(this.nativeElementWidth);\n    }\n  }\n\n  ngAfterContentInit(): void {\n    this._contentChildrenSub = this._breadcrumbs.changes.pipe(startWith(this._breadcrumbs)).subscribe(() => {\n      this.setCrumbIcons();\n      this._changeDetectorRef.markForCheck();\n    });\n  }\n\n  ngOnDestroy(): void {\n    this._resizeSubscription.unsubscribe();\n    this._contentChildrenSub.unsubscribe();\n  }\n\n  /*\n   * Current width of the element container\n   */\n  get nativeElementWidth(): number {\n    const element: HTMLElement = <HTMLElement>this._elementRef.nativeElement;\n    // Need to take into account border, margin and padding that might be around all the crumbs\n    const style: CSSStyleDeclaration = window.getComputedStyle(element);\n    const borderLeft: number = parseInt(style.borderLeft, 10);\n    const borderRight: number = parseInt(style.borderRight, 10);\n    const marginLeft: number = parseInt(style.marginLeft, 10);\n    const marginRight: number = parseInt(style.marginRight, 10);\n    const paddingLeft: number = parseInt(style.paddingLeft, 10);\n    const paddingRight: number = parseInt(style.paddingRight, 10);\n\n    return (\n      element.getBoundingClientRect().width -\n      borderLeft -\n      borderRight -\n      marginLeft -\n      marginRight -\n      paddingLeft -\n      paddingRight\n    );\n  }\n\n  /**\n   * The total count of individual breadcrumbs\n   */\n  get count(): number {\n    return this._breadcrumbs ? this._breadcrumbs.length : 0;\n  }\n\n  /**\n   * Set the crumb icon separators\n   */\n  private setCrumbIcons(): void {\n    if (this._breadcrumbs) {\n      const breadcrumbArray: TdBreadcrumbComponent[] = this._breadcrumbs.toArray();\n      breadcrumbArray.forEach((breadcrumb: TdBreadcrumbComponent, index: number) => {\n        breadcrumb.separatorIcon = this.separatorIcon;\n        // don't show the icon on the last breadcrumb\n        breadcrumb.displayIcon = index < breadcrumbArray.length - 1;\n      });\n    }\n  }\n\n  private _calculateVisibility(): void {\n    const crumbsArray: TdBreadcrumbComponent[] = this._breadcrumbs.toArray();\n    let crumbWidthSum: number = 0;\n    const hiddenCrumbs: TdBreadcrumbComponent[] = [];\n    // loop through crumbs in reverse order to calculate which ones should be removed\n    for (let i: number = crumbsArray.length - 1; i >= 0; i--) {\n      const breadcrumb: TdBreadcrumbComponent = crumbsArray[i];\n      // if crumb exceeds width, then we skip it from the sum and add it into the hiddencrumbs array\n      // and hide it\n      if (crumbWidthSum + breadcrumb.width > this.nativeElementWidth) {\n        breadcrumb.displayCrumb = false;\n        hiddenCrumbs.push(breadcrumb);\n      } else {\n        // else we show it\n        breadcrumb.displayCrumb = true;\n      }\n      crumbWidthSum += breadcrumb.width;\n    }\n    this.hiddenBreadcrumbs = hiddenCrumbs;\n    this._changeDetectorRef.markForCheck();\n  }\n}\n"]} |