evt-angular-ovi/src/app/components/g/g.component.html

<ng-container *ngIf="data.content.length > 0">
    <evt-content-viewer *ngFor="let element of data.content" [content]="element" [editionLevel]="editionLevel"
        [itemsToHighlight]="itemsToHighlight" [itemsLemsToHighlight]="itemsLemsToHighlight" [textFlow]="textFlow"></evt-content-viewer>
</ng-container>

<ng-container *ngIf="data.content.length === 0">
    <ng-container [ngSwitch]="editionLevel">
        <ng-container *ngSwitchCase="'diplomatic'">
            <evt-content-viewer *ngFor="let element of diplomaticMapping$ | async" [content]="element"
                [editionLevel]="editionLevel" [itemsToHighlight]="itemsToHighlight" [itemsLemsToHighlight]="itemsLemsToHighlight"[textFlow]="textFlow"></evt-content-viewer>
        </ng-container>
        <ng-container *ngSwitchDefault>
            <evt-content-viewer *ngFor="let element of normalizedMapping$ | async" [content]="element"
                [editionLevel]="editionLevel" [itemsToHighlight]="itemsToHighlight" [itemsLemsToHighlight]="itemsLemsToHighlight"[textFlow]="textFlow"></evt-content-viewer>
        </ng-container>
    </ng-container>
</ng-container>