keyboard.component.html

<div class="keyboard-container"
     (mousedown)="onMouseDown($event, false)">
  <div class="keyboard-header"></div>
  <div class="keyboard-inner-container"
       (mousedown)="onMouseDown($event, true)">
    <app-french-keyboard *ngIf="preset === 'french'">
    </app-french-keyboard>
  </div>
</div>