ngx-dynamic-breadcrumb
Version:
113 lines • 15.6 kB
JavaScript
import { Injectable } from '@angular/core';
import { NavigationEnd } from '@angular/router';
import { BehaviorSubject } from 'rxjs';
import { filter } from 'rxjs/operators';
import * as i0 from "@angular/core";
import * as i1 from "@angular/router";
export class NgxBreadcrumbService {
constructor(router, activatedRoute) {
this.router = router;
this.activatedRoute = activatedRoute;
this.breadcrumbs = [];
this._breadcrumbChanges = new BehaviorSubject([]);
this.breadcrumbChanges = this._breadcrumbChanges.asObservable();
this._subscribeToRouteEvent();
}
/**
* Recursively build breadcrumb according to activated route.
*
* @param route activate route object
* @param url parent url
* @param breadcrumbs array of current breadcrumbs
*/
buildBreadCrumb(route, url = '', breadcrumbs = []) {
var _a, _b, _c, _d, _e, _f;
// If no routeConfig is available we are on the root path
let label, key, tooltip;
let isClickable = true;
const currentBreadcrumb = (_b = (_a = route.routeConfig) === null || _a === void 0 ? void 0 : _a.data) === null || _b === void 0 ? void 0 : _b.breadcrumb;
if (typeof currentBreadcrumb === 'object') {
key = currentBreadcrumb.key;
label = currentBreadcrumb.label;
isClickable = (_c = currentBreadcrumb.isClickable) !== null && _c !== void 0 ? _c : isClickable;
tooltip = (_d = currentBreadcrumb.tooltip) !== null && _d !== void 0 ? _d : label;
}
else if (typeof currentBreadcrumb === 'string') {
key = label = tooltip = currentBreadcrumb;
}
let path = (_f = (_e = route.routeConfig) === null || _e === void 0 ? void 0 : _e.path) !== null && _f !== void 0 ? _f : '';
// If the route is dynamic route such as ':id', replace it with actual param values
const dynamicRoutes = path.split('/').filter((el) => el.startsWith(':'));
if (dynamicRoutes.length && !!route.snapshot) {
dynamicRoutes.forEach((item) => {
const paramName = item.split(':')[1];
path = path.replace(item, route.snapshot.params[paramName]);
});
}
// In the routeConfig the complete path is not available,
//so we rebuild it each time
const nextUrl = path ? `${url}/${path}` : url;
const newBreadcrumbs = [...breadcrumbs];
if (key) {
const breadcrumb = {
key,
label,
tooltip,
url: nextUrl,
isClickable,
};
// Only adding route with non-empty label
newBreadcrumbs.push(breadcrumb);
}
if (route.firstChild) {
//If we are not on our current path yet,
//there will be more children to look after, to build our breadcrumb
return this.buildBreadCrumb(route.firstChild, nextUrl, newBreadcrumbs);
}
return newBreadcrumbs;
}
/**
* Returns the latest array of breadcrumbs.
*
* @returns Array of breadcrumbs
*/
getBreadcrumbs() {
return this._breadcrumbChanges.getValue();
}
/**
* Edit the breadcrumb label and url dynamically.
* If the label is null while editing, it will act
* as delete breadcrumb from UI.
*
* @param crumbs IReplaceBreadcrumb[]
*/
editBreadcrumbs(crumbs) {
crumbs.forEach((item) => {
var _a, _b;
const data = this.breadcrumbs.find((breadcrumb) => breadcrumb.key === item.key);
if (data) {
data.label = item.newLabel;
data.url = Array.isArray(item.newUrl)
? item.newUrl.join('/')
: (_a = item.newUrl) !== null && _a !== void 0 ? _a : data.url;
data.tooltip = (_b = item.tooltip) !== null && _b !== void 0 ? _b : data.tooltip;
}
});
this._breadcrumbChanges.next([...this.breadcrumbs]);
}
// private functions
_subscribeToRouteEvent() {
this.router.events
.pipe(filter((event) => event instanceof NavigationEnd))
.subscribe(() => {
this.breadcrumbs = this.buildBreadCrumb(this.activatedRoute.root);
this._breadcrumbChanges.next(this.breadcrumbs);
});
}
}
NgxBreadcrumbService.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "12.2.16", ngImport: i0, type: NgxBreadcrumbService, deps: [{ token: i1.Router }, { token: i1.ActivatedRoute }], target: i0.ɵɵFactoryTarget.Injectable });
NgxBreadcrumbService.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "12.2.16", ngImport: i0, type: NgxBreadcrumbService });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "12.2.16", ngImport: i0, type: NgxBreadcrumbService, decorators: [{
type: Injectable
}], ctorParameters: function () { return [{ type: i1.Router }, { type: i1.ActivatedRoute }]; } });
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{ Injectable } from '@angular/core';\r\nimport { ActivatedRoute, NavigationEnd, Router } from '@angular/router';\r\nimport { BehaviorSubject, Observable } from 'rxjs';\r\nimport { filter } from 'rxjs/operators';\r\n\r\nimport { IBreadcrumb, IReplaceBreadcrumb } from './ngx-breadcrumb.types';\r\n\r\n@Injectable()\r\nexport class NgxBreadcrumbService {\r\n\r\n\r\n  /**\r\n   * Emit change when the breadcrumbs are changed.\r\n   */\r\n  readonly breadcrumbChanges: Observable<IBreadcrumb[]>;\r\n\r\n  private breadcrumbs: IBreadcrumb[] = [];\r\n\r\n  private readonly _breadcrumbChanges = new BehaviorSubject<IBreadcrumb[]>([]);\r\n\r\n  constructor(\r\n    private readonly router: Router,\r\n    private readonly activatedRoute: ActivatedRoute\r\n  ) {\r\n    this.breadcrumbChanges = this._breadcrumbChanges.asObservable();\r\n    this._subscribeToRouteEvent();\r\n  }\r\n\r\n  /**\r\n   * Recursively build breadcrumb according to activated route.\r\n   *\r\n   * @param route activate route object\r\n   * @param url parent url\r\n   * @param breadcrumbs array of current breadcrumbs\r\n   */\r\n  buildBreadCrumb(\r\n    route: ActivatedRoute,\r\n    url = '',\r\n    breadcrumbs: IBreadcrumb[] = []\r\n  ): IBreadcrumb[] {\r\n    // If no routeConfig is available we are on the root path\r\n    let label, key, tooltip;\r\n    let isClickable = true;\r\n    const currentBreadcrumb = route.routeConfig?.data?.breadcrumb;\r\n    if (typeof currentBreadcrumb === 'object') {\r\n      key = currentBreadcrumb.key;\r\n      label = currentBreadcrumb.label;\r\n      isClickable = currentBreadcrumb.isClickable ?? isClickable;\r\n      tooltip = currentBreadcrumb.tooltip ?? label;\r\n    } else if (typeof currentBreadcrumb === 'string') {\r\n      key = label = tooltip = currentBreadcrumb;\r\n    }\r\n    let path = route.routeConfig?.path ?? '';\r\n\r\n    // If the route is dynamic route such as ':id', replace it with actual param values\r\n    const dynamicRoutes = path.split('/').filter((el) => el.startsWith(':'));\r\n    if (dynamicRoutes.length && !!route.snapshot) {\r\n      dynamicRoutes.forEach((item) => {\r\n        const paramName = item.split(':')[1];\r\n        path = path.replace(item, route.snapshot.params[paramName]);\r\n      });\r\n    }\r\n\r\n    // In the routeConfig the complete path is not available,\r\n    //so we rebuild it each time\r\n    const nextUrl = path ? `${url}/${path}` : url;\r\n\r\n    const newBreadcrumbs = [...breadcrumbs];\r\n\r\n    if (key) {\r\n      const breadcrumb: IBreadcrumb = {\r\n        key,\r\n        label,\r\n        tooltip,\r\n        url: nextUrl,\r\n        isClickable,\r\n      };\r\n\r\n      // Only adding route with non-empty label\r\n      newBreadcrumbs.push(breadcrumb);\r\n    }\r\n\r\n    if (route.firstChild) {\r\n      //If we are not on our current path yet,\r\n      //there will be more children to look after, to build our breadcrumb\r\n      return this.buildBreadCrumb(route.firstChild, nextUrl, newBreadcrumbs);\r\n    }\r\n    return newBreadcrumbs;\r\n  }\r\n\r\n  /**\r\n   * Returns the latest array of breadcrumbs.\r\n   *\r\n   * @returns Array of breadcrumbs\r\n   */\r\n  public getBreadcrumbs(): IBreadcrumb[] {\r\n    return this._breadcrumbChanges.getValue();\r\n  }\r\n\r\n  /**\r\n   * Edit the breadcrumb label and url dynamically.\r\n   * If the label is null while editing, it will act\r\n   * as delete breadcrumb from UI.\r\n   *\r\n   * @param crumbs IReplaceBreadcrumb[]\r\n   */\r\n  editBreadcrumbs(crumbs: IReplaceBreadcrumb[]): void {\r\n    crumbs.forEach((item) => {\r\n      const data = this.breadcrumbs.find(\r\n        (breadcrumb) => breadcrumb.key === item.key\r\n      );\r\n      if (data) {\r\n        data.label = item.newLabel;\r\n        data.url = Array.isArray(item.newUrl)\r\n          ? item.newUrl.join('/')\r\n          : item.newUrl ?? data.url;\r\n        data.tooltip = item.tooltip ?? data.tooltip;\r\n      }\r\n    });\r\n    this._breadcrumbChanges.next([...this.breadcrumbs]);\r\n  }\r\n\r\n  // private functions\r\n  private _subscribeToRouteEvent(): void {\r\n    this.router.events\r\n      .pipe(filter((event) => event instanceof NavigationEnd))\r\n      .subscribe(() => {\r\n        this.breadcrumbs = this.buildBreadCrumb(this.activatedRoute.root);\r\n        this._breadcrumbChanges.next(this.breadcrumbs);\r\n      });\r\n  }\r\n}\r\n"]}