import { Directive, TemplateRef, ViewContainerRef, Inject } from '@angular/core';

export interface KeyAttribute {
  [key: string]: any;
}

@Directive({
  selector:   '[ngTransclude]',
  properties: ['ngTransclude']
})
export class NgTranscludeDirective {
  public viewRef: ViewContainerRef;

  private _ngTransclude: TemplateRef<any>;

  private set ngTransclude(templateRef: TemplateRef<any>) {
    this._ngTransclude = templateRef;
    if (templateRef) {
      this.viewRef.createEmbeddedView(templateRef);
    }
  }

  private get ngTransclude(): TemplateRef<any> {
    return this._ngTransclude;
  }

  public constructor(@Inject(ViewContainerRef) _viewRef: ViewContainerRef) {
    this.viewRef = _viewRef;
  }
}