import {Directive, ElementRef, Renderer2} from '@angular/core'; @Directive({ selector: '[appMenuSelection]' }) export class MenuSelectionDirective { constructor( private elementRef: ElementRef, private renderer: Renderer2 ) { this.renderer.listen(this.elementRef.nativeElement, 'click', () => { const mediaQuery = window.matchMedia('(max-width: 768px)'); if (mediaQuery.matches) { this.onMenuSelect(); } }); } onMenuSelect(): void { const sidebar = document.getElementById('sidebar'); sidebar.classList.add('active'); const content = document.getElementById('content'); content.classList.add( 'active'); const sidebarCollapse = document.getElementById('sidebarCollapse'); sidebarCollapse.classList.remove('active'); } }