feat: add breadcrumb component (#63)

Add breadcrumb component for dynamic generation of breadcrumb links.

Fixes #62

src/app/core/shell/breadcrumb/breadcrumb.component.html

@@ -0,0 +1,12 @@
+<nav>
+  <div class="breadcrumb-wrapper">
+    <ul>
+      <li *ngFor="let breadcrumb of breadcrumbs; let last = last">
+        <span *ngIf="!last">
+            <a *ngIf="!last" [routerLink]="breadcrumb.url">{{breadcrumb.label}}</a>&nbsp;&nbsp;>&nbsp;&nbsp;
+        </span>
+        <span *ngIf="last">{{ breadcrumb.label }}</span>
+      </li>
+    </ul>
+  </div>
+</nav>

src/app/core/shell/breadcrumb/breadcrumb.component.scss

@@ -0,0 +1,4 @@
+li {
+  display: inline;
+  list-style-type: none;
+}

src/app/core/shell/breadcrumb/breadcrumb.component.spec.ts

@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { BreadcrumbComponent } from './breadcrumb.component';
+
+describe('BreadcrumbComponent', () => {
+  let component: BreadcrumbComponent;
+  let fixture: ComponentFixture<BreadcrumbComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ BreadcrumbComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(BreadcrumbComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

src/app/core/shell/breadcrumb/breadcrumb.component.ts

@@ -0,0 +1,69 @@
+import { Component, OnInit } from '@angular/core';
+import { ActivatedRoute, Router, NavigationEnd } from '@angular/router';
+
+import { filter } from 'rxjs/operators';
+
+import { Breadcrumb } from './breadcrumb.model';
+
+@Component({
+  selector: 'mifosx-breadcrumb',
+  templateUrl: './breadcrumb.component.html',
+  styleUrls: ['./breadcrumb.component.scss']
+})
+export class BreadcrumbComponent implements OnInit {
+
+  breadcrumbs: Breadcrumb[];
+
+  constructor(private activatedRoute: ActivatedRoute,
+              private router: Router) {
+    this.generateBreadcrumbs();
+  }
+
+  generateBreadcrumbs() {
+    const routeDataBreadcrumb = 'breadcrumb';
+    const routeParamBreadcrumb = 'routeParamBreadcrumb';
+    const onNavigationEnd = this.router.events.pipe(filter(event => event instanceof NavigationEnd));
+
+    onNavigationEnd.subscribe(() => {
+      this.breadcrumbs = [];
+      let currentRoute = this.activatedRoute.root;
+      let url = '';
+
+      while (currentRoute.children.length > 0) {
+        const childrenRoutes = currentRoute.children;
+        let breadcrumbLabel = 'Home';
+
+        childrenRoutes.forEach(route => {
+          currentRoute = route;
+          if (route.outlet !== 'primary') {
+            return;
+          }
+          const hasData = (route.routeConfig && route.routeConfig.data);
+          if (hasData) {
+            if (route.snapshot.data.hasOwnProperty(routeParamBreadcrumb)) {
+              breadcrumbLabel = route.snapshot.params[route.snapshot.data[routeParamBreadcrumb]];
+            } else if (route.snapshot.data.hasOwnProperty(routeDataBreadcrumb)) {
+              breadcrumbLabel = route.snapshot.data[routeDataBreadcrumb];
+            }
+          }
+
+          const routeURL = route.snapshot.url.map(segment => segment.path).join('/');
+          url += `/${routeURL}`;
+
+          const breadcrumb: Breadcrumb = {
+            label: breadcrumbLabel,
+            url: url
+          };
+
+          if (breadcrumb.url !== '//home') {
+            this.breadcrumbs.push(breadcrumb);
+          }
+        });
+      }
+    });
+  }
+
+  ngOnInit() {
+  }
+
+}

src/app/core/shell/breadcrumb/breadcrumb.model.ts

@@ -0,0 +1,4 @@
+export interface Breadcrumb {
+  label: string;
+  url: string;
+}

src/app/core/shell/content/content.component.html

@@ -1,2 +1 @@
-<!-- TODO: Breadcrumb Links -->
 <router-outlet></router-outlet>

src/app/core/shell/shell.component.html

@@ -19,6 +19,7 @@
 
     <mifosx-toolbar [sidenav]="sidenav" (collapse)="toggleCollapse($event)"></mifosx-toolbar>
 
+    <mifosx-breadcrumb></mifosx-breadcrumb>
     <mifosx-content></mifosx-content>
 
   </mat-sidenav-content>

src/app/core/shell/toolbar/toolbar.component.html

@@ -108,7 +108,7 @@
 
 <mat-menu #selfServiceMenu="matMenu" [overlapTrigger]="false">
   <span (mouseleave)="selfServiceMenuTrigger.closeMenu()">
-    <button mat-menu-item>User Management</button>
+    <button mat-menu-item routerLink="/self-service/users">User Management</button>
     <button mat-menu-item>App Configuration</button>
     <button mat-menu-item>Task Management</button>
   </span>