argos/dmp-frontend/src/app/form/pagination/pagination-service.ts

import { Injectable } from '@angular/core'
@Injectable()
export class PaginationService {

    private currentPageIndex: number;

    public setCurrentIndex(currentPageIndex: number): void {
        this.currentPageIndex = currentPageIndex;
    }

    public getCurrentIndex():number{
        return this.currentPageIndex;
    }

    public isElementVisible(elementPage: number):boolean {
        return elementPage  == this.currentPageIndex ; //TODO
    }
}