feat(angular): expose getSelected() (#17079)

fixes #17068

angular/src/directives/navigation/ion-back-button.ts

@@ -1,4 +1,4 @@
-import { Directive, ElementRef, HostListener, Optional } from '@angular/core';
+import { Directive, HostListener, Optional } from '@angular/core';
 
 import { NavController } from '../../providers/nav-controller';
 
@@ -10,19 +10,16 @@ import { IonRouterOutlet } from './ion-router-outlet';
 })
 export class IonBackButtonDelegate {
 
-  set defaultHref(value: string | undefined | null) {
-    this.elementRef.nativeElement.defaultHref = value;
-  }
-  get defaultHref(): string | undefined | null {
-    return this.elementRef.nativeElement.defaultHref;
-  }
+  defaultHref: string | undefined | null;
 
   constructor(
     @Optional() private routerOutlet: IonRouterOutlet,
-    private navCtrl: NavController,
-    private elementRef: ElementRef,
+    private navCtrl: NavController
   ) {}
 
+  /**
+   * @internal
+   */
   @HostListener('click', ['$event'])
   onClick(ev: Event) {
     if (this.routerOutlet && this.routerOutlet.canGoBack()) {

angular/src/directives/navigation/ion-tabs.ts

@@ -49,6 +49,9 @@ export class IonTabs {
     private navCtrl: NavController,
   ) {}
 
+  /**
+   * @internal
+   */
   @HostListener('ionRouterOutletActivated', ['$event.detail'])
   onPageSelected(detail: {view: RouteView}) {
     if (this.tabBar) {
@@ -69,4 +72,8 @@ export class IonTabs {
       animationDirection: 'back'
     });
   }
+
+  getSelected(): string | undefined {
+    return this.outlet.getActiveStackId();
+  }
 }

angular/src/directives/navigation/router-link-delegate.ts

@@ -45,6 +45,9 @@ export class RouterLinkDelegate {
     }
   }
 
+  /**
+   * @internal
+   */
   @HostListener('click', ['$event'])
   onClick(ev: UIEvent) {
     this.navCtrl.setDirection(this.routerDirection);