progressive-image#directive-providers.ts

@Directive({
  selector: 'img[appProgressiveImage]',
  providers: [{
      provide: Dimensions,
      useExisting: forwardRef(() => ProgressiveImageDirective)
    }]
})
export class ProgressiveImageDirective implements OnInit, Dimensions {}

@Directive({
  selector: '[appProgressiveImageFallback]',
  providers: [{
      provide: Dimensions,
      useExisting: forwardRef(() => ProgressiveImageFallbackDirective)
    }]
})
export class ProgressiveImageFallbackDirective implements OnInit, Dimensions {}

@Directive({
  selector: '[appProgressiveImagePlaceholder]',
  providers: [{
      provide: Dimensions,
      useExisting: forwardRef(() => ProgressiveImagePlaceholderDirective)
    }]
})
export class ProgressiveImagePlaceholderDirective implements OnInit, Dimensions {}