xng-breadcrumb
Version:
A declarative and reactive breadcrumb approach for Angular 6 and beyond https://www.npmjs.com/package/xng-breadcrumb
110 lines • 24.9 kB
JavaScript
import { Component, ContentChild, Input, TemplateRef, ViewEncapsulation, } from '@angular/core';
import { ActivatedRoute } from '@angular/router';
import { map } from 'rxjs/operators';
import { BreadcrumbItemDirective } from './breadcrumb-item.directive';
import { BreadcrumbService } from './breadcrumb.service';
import * as i0 from "@angular/core";
import * as i1 from "./breadcrumb.service";
import * as i2 from "@angular/router";
import * as i3 from "@angular/common";
export class BreadcrumbComponent {
constructor(breadcrumbService, activateRoute) {
this.breadcrumbService = breadcrumbService;
this._separator = '/';
/**
* If true, breadcrumb is auto generated even without any mapping label
* Default label is same as route segment
*/
this.autoGenerate = true;
/**
* By default query params will be preserved with breadcrumbs
*/
this.preserveQueryParams = true;
/**
* By default query fragments will be preserved with breadcrumbs
*/
this.preserveFragment = true;
/**
* custom class provided by consumer to increase specificity
* This will benefit to override styles that are conflicting
*/
this.class = '';
this.setupMessage = 'not set up yet';
this.someParameterValue = null;
// breadcrumb inside ngIf works only this way
activateRoute.params.subscribe((params) => {
this.setupComponent(params['someParam']);
});
}
/**
* separator between breadcrumbs, defaults to '/'.
* User can customize separator either by passing a String or Template
*
* String --> Ex: <xng-breadcrumb separator="-"> </xng-breadcrumb>
*
* Template --> Ex: <xng-breadcrumb [separator]="separatorTemplate"> </xng-breadcrumb>
* <ng-template #separatorTemplate><mat-icon>arrow_right</mat-icon></ng-template>
*/
set separator(value) {
if (value instanceof TemplateRef) {
this.separatorTemplate = value;
this._separator = undefined;
}
else {
this.separatorTemplate = undefined;
this._separator = value || '/';
}
}
get separator() {
return this._separator;
}
setupComponent(someParam) {
this.setupMessage = 'set up at ' + new Date();
this.someParameterValue = someParam;
}
ngOnInit() {
this.breadcrumbs$ = this.breadcrumbService.breadcrumbs$.pipe(map((breadcrumbs) => {
return breadcrumbs
.filter((breadcrumb) => {
// Usually, breadcrumb list can contain a combination of auto generated and user specified labels
// this filters autogenerated labels in case of "[autoGenerate]: false"
if (this.autoGenerate) {
return true;
}
return !breadcrumb.isAutoGeneratedLabel;
})
.map((breadcrumb) => {
// Do not mutate breadcrumb as its source of truth.
// There can be scenarios where we can have multiple xng-breadcrumb instances in page
const { routeInterceptor, routeLink } = breadcrumb;
return {
...breadcrumb,
routeLink: routeInterceptor?.(routeLink, breadcrumb) || routeLink,
};
});
}));
}
}
BreadcrumbComponent.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.0.0", ngImport: i0, type: BreadcrumbComponent, deps: [{ token: i1.BreadcrumbService }, { token: i2.ActivatedRoute }], target: i0.ɵɵFactoryTarget.Component });
BreadcrumbComponent.ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: "14.0.0", version: "15.0.0", type: BreadcrumbComponent, selector: "xng-breadcrumb", inputs: { autoGenerate: "autoGenerate", preserveQueryParams: "preserveQueryParams", preserveFragment: "preserveFragment", class: "class", anchorTarget: "anchorTarget", separator: "separator" }, queries: [{ propertyName: "itemTemplate", first: true, predicate: BreadcrumbItemDirective, descendants: true, read: TemplateRef }], ngImport: i0, template: "<nav aria-label=\"breadcrumb\" class=\"xng-breadcrumb-root\" [ngClass]=\"class\">\n <ol class=\"xng-breadcrumb-list\">\n <ng-container\n *ngFor=\"\n let breadcrumb of breadcrumbs$ | async;\n last as isLast;\n first as isFirst;\n index as index;\n count as count\n \"\n >\n <li class=\"xng-breadcrumb-item\">\n <a\n *ngIf=\"!isLast\"\n class=\"xng-breadcrumb-link\"\n [ngClass]=\"{ 'xng-breadcrumb-link-disabled': breadcrumb.disable }\"\n [attr.aria-disabled]=\"breadcrumb.disable\"\n [attr.tabIndex]=\"breadcrumb.disable ? -1 : 0\"\n role=\"button\"\n rel=\"noopener noreferrer\"\n [routerLink]=\"\n breadcrumb.routeInterceptor\n ? breadcrumb.routeInterceptor(breadcrumb.routeLink, breadcrumb)\n : breadcrumb.routeLink\n \"\n [queryParams]=\"\n preserveQueryParams ? breadcrumb.queryParams : undefined\n \"\n [fragment]=\"preserveFragment ? breadcrumb.fragment : undefined\"\n [target]=\"anchorTarget ? anchorTarget : '_self'\"\n >\n <ng-container\n *ngTemplateOutlet=\"\n itemTemplate;\n context: {\n $implicit: breadcrumb.label,\n info: breadcrumb.info,\n last: isLast,\n first: isFirst,\n index: index,\n count: count\n }\n \"\n ></ng-container>\n <ng-container *ngIf=\"!itemTemplate\">{{\n breadcrumb.label\n }}</ng-container>\n </a>\n\n <label *ngIf=\"isLast\" class=\"xng-breadcrumb-trail\">\n <ng-container\n *ngTemplateOutlet=\"\n itemTemplate;\n context: {\n $implicit: breadcrumb.label,\n info: breadcrumb.info,\n last: isLast,\n first: isFirst,\n index: index,\n count: count\n }\n \"\n ></ng-container>\n <ng-container *ngIf=\"!itemTemplate\">{{\n breadcrumb.label\n }}</ng-container>\n </label>\n </li>\n\n <li *ngIf=\"!isLast\" class=\"xng-breadcrumb-separator\" aria-hidden=\"true\">\n <ng-container *ngTemplateOutlet=\"separatorTemplate\"></ng-container>\n <ng-container *ngIf=\"!separatorTemplate\">{{ separator }}</ng-container>\n </li>\n </ng-container>\n </ol>\n</nav>\n", styles: [".xng-breadcrumb-root{margin:0;color:#0009}.xng-breadcrumb-list{display:flex;align-items:center;flex-wrap:wrap;margin:0;padding:0}.xng-breadcrumb-item{list-style:none}.xng-breadcrumb-trail{display:flex;align-items:center;color:#000000e6}.xng-breadcrumb-link{display:flex;align-items:center;white-space:nowrap;color:inherit;text-decoration:none;transition:-webkit-text-decoration .3s;transition:text-decoration .3s;transition:text-decoration .3s,-webkit-text-decoration .3s;cursor:pointer}.xng-breadcrumb-link:hover{text-decoration:underline}.xng-breadcrumb-link-disabled{pointer-events:none;cursor:disabled}.xng-breadcrumb-separator{display:flex;-webkit-user-select:none;user-select:none;margin-left:8px;margin-right:8px}\n"], dependencies: [{ kind: "directive", type: i3.NgClass, selector: "[ngClass]", inputs: ["class", "ngClass"] }, { kind: "directive", type: i3.NgForOf, selector: "[ngFor][ngForOf]", inputs: ["ngForOf", "ngForTrackBy", "ngForTemplate"] }, { kind: "directive", type: i3.NgIf, selector: "[ngIf]", inputs: ["ngIf", "ngIfThen", "ngIfElse"] }, { kind: "directive", type: i3.NgTemplateOutlet, selector: "[ngTemplateOutlet]", inputs: ["ngTemplateOutletContext", "ngTemplateOutlet", "ngTemplateOutletInjector"] }, { kind: "directive", type: i2.RouterLink, selector: "[routerLink]", inputs: ["target", "queryParams", "fragment", "queryParamsHandling", "state", "relativeTo", "preserveFragment", "skipLocationChange", "replaceUrl", "routerLink"] }, { kind: "pipe", type: i3.AsyncPipe, name: "async" }], encapsulation: i0.ViewEncapsulation.None });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.0.0", ngImport: i0, type: BreadcrumbComponent, decorators: [{
type: Component,
args: [{ selector: 'xng-breadcrumb', encapsulation: ViewEncapsulation.None, template: "<nav aria-label=\"breadcrumb\" class=\"xng-breadcrumb-root\" [ngClass]=\"class\">\n <ol class=\"xng-breadcrumb-list\">\n <ng-container\n *ngFor=\"\n let breadcrumb of breadcrumbs$ | async;\n last as isLast;\n first as isFirst;\n index as index;\n count as count\n \"\n >\n <li class=\"xng-breadcrumb-item\">\n <a\n *ngIf=\"!isLast\"\n class=\"xng-breadcrumb-link\"\n [ngClass]=\"{ 'xng-breadcrumb-link-disabled': breadcrumb.disable }\"\n [attr.aria-disabled]=\"breadcrumb.disable\"\n [attr.tabIndex]=\"breadcrumb.disable ? -1 : 0\"\n role=\"button\"\n rel=\"noopener noreferrer\"\n [routerLink]=\"\n breadcrumb.routeInterceptor\n ? breadcrumb.routeInterceptor(breadcrumb.routeLink, breadcrumb)\n : breadcrumb.routeLink\n \"\n [queryParams]=\"\n preserveQueryParams ? breadcrumb.queryParams : undefined\n \"\n [fragment]=\"preserveFragment ? breadcrumb.fragment : undefined\"\n [target]=\"anchorTarget ? anchorTarget : '_self'\"\n >\n <ng-container\n *ngTemplateOutlet=\"\n itemTemplate;\n context: {\n $implicit: breadcrumb.label,\n info: breadcrumb.info,\n last: isLast,\n first: isFirst,\n index: index,\n count: count\n }\n \"\n ></ng-container>\n <ng-container *ngIf=\"!itemTemplate\">{{\n breadcrumb.label\n }}</ng-container>\n </a>\n\n <label *ngIf=\"isLast\" class=\"xng-breadcrumb-trail\">\n <ng-container\n *ngTemplateOutlet=\"\n itemTemplate;\n context: {\n $implicit: breadcrumb.label,\n info: breadcrumb.info,\n last: isLast,\n first: isFirst,\n index: index,\n count: count\n }\n \"\n ></ng-container>\n <ng-container *ngIf=\"!itemTemplate\">{{\n breadcrumb.label\n }}</ng-container>\n </label>\n </li>\n\n <li *ngIf=\"!isLast\" class=\"xng-breadcrumb-separator\" aria-hidden=\"true\">\n <ng-container *ngTemplateOutlet=\"separatorTemplate\"></ng-container>\n <ng-container *ngIf=\"!separatorTemplate\">{{ separator }}</ng-container>\n </li>\n </ng-container>\n </ol>\n</nav>\n", styles: [".xng-breadcrumb-root{margin:0;color:#0009}.xng-breadcrumb-list{display:flex;align-items:center;flex-wrap:wrap;margin:0;padding:0}.xng-breadcrumb-item{list-style:none}.xng-breadcrumb-trail{display:flex;align-items:center;color:#000000e6}.xng-breadcrumb-link{display:flex;align-items:center;white-space:nowrap;color:inherit;text-decoration:none;transition:-webkit-text-decoration .3s;transition:text-decoration .3s;transition:text-decoration .3s,-webkit-text-decoration .3s;cursor:pointer}.xng-breadcrumb-link:hover{text-decoration:underline}.xng-breadcrumb-link-disabled{pointer-events:none;cursor:disabled}.xng-breadcrumb-separator{display:flex;-webkit-user-select:none;user-select:none;margin-left:8px;margin-right:8px}\n"] }]
}], ctorParameters: function () { return [{ type: i1.BreadcrumbService }, { type: i2.ActivatedRoute }]; }, propDecorators: { itemTemplate: [{
type: ContentChild,
args: [BreadcrumbItemDirective, { static: false, read: TemplateRef }]
}], autoGenerate: [{
type: Input
}], preserveQueryParams: [{
type: Input
}], preserveFragment: [{
type: Input
}], class: [{
type: Input
}], anchorTarget: [{
type: Input
}], separator: [{
type: Input,
args: ['separator']
}] } });
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{\n  Component,\n  ContentChild,\n  Input,\n  OnInit,\n  TemplateRef,\n  ViewEncapsulation,\n} from '@angular/core';\nimport { ActivatedRoute } from '@angular/router';\nimport { Observable } from 'rxjs';\nimport { map } from 'rxjs/operators';\nimport { BreadcrumbItemDirective } from './breadcrumb-item.directive';\nimport { BreadcrumbDefinition, BreadcrumbService } from './breadcrumb.service';\n\n@Component({\n  selector: 'xng-breadcrumb',\n  templateUrl: './breadcrumb.component.html',\n  styleUrls: ['./breadcrumb.component.css'],\n  encapsulation: ViewEncapsulation.None,\n})\nexport class BreadcrumbComponent implements OnInit {\n  breadcrumbs$: Observable<BreadcrumbDefinition[]>;\n  separatorTemplate: TemplateRef<void>;\n  private _separator = '/';\n\n  /**\n   * Breadcrumb item can be customized with this template\n   * Template context is provided label, additional info, first and last indexes\n   * Use cases:\n   * 1) Add an icon along with label\n   * 2) i18n. {{breadcrumb | translate}} or {{breadcrumb | transloco}}\n   * 3) Change text case {{breadcrumb | titlecase}}\n   */\n  @ContentChild(BreadcrumbItemDirective, { static: false, read: TemplateRef })\n  itemTemplate;\n\n  /**\n   * If true, breadcrumb is auto generated even without any mapping label\n   * Default label is same as route segment\n   */\n  @Input() autoGenerate = true;\n\n  /**\n   * By default query params will be preserved with breadcrumbs\n   */\n  @Input() preserveQueryParams = true;\n\n  /**\n   * By default query fragments will be preserved with breadcrumbs\n   */\n  @Input() preserveFragment = true;\n\n  /**\n   * custom class provided by consumer to increase specificity\n   * This will benefit to override styles that are conflicting\n   */\n  @Input() class = '';\n\n  /**\n   * anchorTarget = \"_blank\" makes the breadcrumb link open in a new tab\n   */\n  @Input() anchorTarget: '_blank' | undefined;\n\n  /**\n   * separator between breadcrumbs, defaults to '/'.\n   * User can customize separator either by passing a String or Template\n   *\n   * String --> Ex: <xng-breadcrumb separator=\"-\"> </xng-breadcrumb>\n   *\n   * Template --> Ex: <xng-breadcrumb [separator]=\"separatorTemplate\"> </xng-breadcrumb>\n   * <ng-template #separatorTemplate><mat-icon>arrow_right</mat-icon></ng-template>\n   */\n  @Input('separator')\n  set separator(value: string | TemplateRef<void>) {\n    if (value instanceof TemplateRef) {\n      this.separatorTemplate = value;\n      this._separator = undefined;\n    } else {\n      this.separatorTemplate = undefined;\n      this._separator = value || '/';\n    }\n  }\n  get separator() {\n    return this._separator;\n  }\n\n  setupMessage = 'not set up yet';\n  someParameterValue = null;\n\n  constructor(\n    private breadcrumbService: BreadcrumbService,\n    activateRoute: ActivatedRoute\n  ) {\n    // breadcrumb inside ngIf works only this way\n    activateRoute.params.subscribe((params) => {\n      this.setupComponent(params['someParam']);\n    });\n  }\n\n  setupComponent(someParam) {\n    this.setupMessage = 'set up at ' + new Date();\n    this.someParameterValue = someParam;\n  }\n\n  ngOnInit() {\n    this.breadcrumbs$ = this.breadcrumbService.breadcrumbs$.pipe(\n      map((breadcrumbs: BreadcrumbDefinition[]) => {\n        return breadcrumbs\n          .filter((breadcrumb: BreadcrumbDefinition) => {\n            // Usually, breadcrumb list can contain a combination of auto generated and user specified labels\n            // this filters autogenerated labels in case of \"[autoGenerate]: false\"\n            if (this.autoGenerate) {\n              return true;\n            }\n            return !breadcrumb.isAutoGeneratedLabel;\n          })\n          .map((breadcrumb: BreadcrumbDefinition) => {\n            // Do not mutate breadcrumb as its source of truth.\n            // There can be scenarios where we can have multiple xng-breadcrumb instances in page\n            const { routeInterceptor, routeLink } = breadcrumb;\n            return {\n              ...breadcrumb,\n              routeLink: routeInterceptor?.(routeLink, breadcrumb) || routeLink,\n            };\n          });\n      })\n    );\n  }\n}\n","<nav aria-label=\"breadcrumb\" class=\"xng-breadcrumb-root\" [ngClass]=\"class\">\n  <ol class=\"xng-breadcrumb-list\">\n    <ng-container\n      *ngFor=\"\n        let breadcrumb of breadcrumbs$ | async;\n        last as isLast;\n        first as isFirst;\n        index as index;\n        count as count\n      \"\n    >\n      <li class=\"xng-breadcrumb-item\">\n        <a\n          *ngIf=\"!isLast\"\n          class=\"xng-breadcrumb-link\"\n          [ngClass]=\"{ 'xng-breadcrumb-link-disabled': breadcrumb.disable }\"\n          [attr.aria-disabled]=\"breadcrumb.disable\"\n          [attr.tabIndex]=\"breadcrumb.disable ? -1 : 0\"\n          role=\"button\"\n          rel=\"noopener noreferrer\"\n          [routerLink]=\"\n            breadcrumb.routeInterceptor\n              ? breadcrumb.routeInterceptor(breadcrumb.routeLink, breadcrumb)\n              : breadcrumb.routeLink\n          \"\n          [queryParams]=\"\n            preserveQueryParams ? breadcrumb.queryParams : undefined\n          \"\n          [fragment]=\"preserveFragment ? breadcrumb.fragment : undefined\"\n          [target]=\"anchorTarget ? anchorTarget : '_self'\"\n        >\n          <ng-container\n            *ngTemplateOutlet=\"\n              itemTemplate;\n              context: {\n                $implicit: breadcrumb.label,\n                info: breadcrumb.info,\n                last: isLast,\n                first: isFirst,\n                index: index,\n                count: count\n              }\n            \"\n          ></ng-container>\n          <ng-container *ngIf=\"!itemTemplate\">{{\n            breadcrumb.label\n          }}</ng-container>\n        </a>\n\n        <label *ngIf=\"isLast\" class=\"xng-breadcrumb-trail\">\n          <ng-container\n            *ngTemplateOutlet=\"\n              itemTemplate;\n              context: {\n                $implicit: breadcrumb.label,\n                info: breadcrumb.info,\n                last: isLast,\n                first: isFirst,\n                index: index,\n                count: count\n              }\n            \"\n          ></ng-container>\n          <ng-container *ngIf=\"!itemTemplate\">{{\n            breadcrumb.label\n          }}</ng-container>\n        </label>\n      </li>\n\n      <li *ngIf=\"!isLast\" class=\"xng-breadcrumb-separator\" aria-hidden=\"true\">\n        <ng-container *ngTemplateOutlet=\"separatorTemplate\"></ng-container>\n        <ng-container *ngIf=\"!separatorTemplate\">{{ separator }}</ng-container>\n      </li>\n    </ng-container>\n  </ol>\n</nav>\n"]}