cds-ui/designer-client/src/app/common/core/canDactivate/ComponentCanDeactivate.ts


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import {HostListener} from '@angular/core';

export abstract class ComponentCanDeactivate {

    abstract canDeactivate(): boolean;


    @HostListener('window:beforeunload', ['$event'])
    unloadNotification($event: any) {
        if (!this.canDeactivate()) {
            $event.returnValue = true;
        }
    }
}