My header has two different modes: burger and return. It depends on the component in the router outlet, which mode should be used.
app.component.ts:
<header-bar [mode]="getMenuMode()"></header-bar>
<router-outlet></router-outlet>
Right now the header-bar component has an @Input() called mode, which calls getMenuMode() on the component. Of course this doesn't work - I don't really have an idea though how to approach this.
