import { InterventionRequestMedia } from '../../intervention-request';
/**
 * InterventionRequest Picture
 * @description Picture component
 * @author ravorona
 */
export declare class InterventionRequestPicture {
  /**
   * Own properties
   */
  private strategyInstance?;
  private isWebp;
  private nativeLoading;
  private observer;
  /**
   * Component element reference
   */
  el: HTMLElement;
  /**
   * Source
   */
  src: string;
  /**
   * Alt attribute
   */
  alt: string;
  /**
   * Crop attribute
   */
  crop?: string;
  /**
   * Fit attribute
   */
  fit?: string;
  /**
   * Width attribute
   */
  width?: number;
  /**
   * Height attribute
   */
  height?: number;
  /**
   * Strategy
   */
  strategy: string;
  /**
   * Base URL
   */
  baseUrl: string;
  /**
   * Source list
   */
  media?: InterventionRequestMedia;
  /**
   * Mime type
   */
  mimeType?: string;
  /**
   * Force intersection observer
   * for lazy load
   */
  forceIo?: boolean;
  /**
   * Loading type
   */
  loading: 'lazy' | 'eager' | 'auto';
  /**
   * Media loaded
   */
  private loaded;
  /**
   * Loading completed event emitter
   */
  private loadingCompleted;
  sourceHandler(): void;
  /**
   * Component wiill load
   * Component lifecycle method
   * @return void
   */
  componentWillLoad(): void;
  /**
   * Component did load
   * Component lifecycle method
   * @return void
   */
  componentDidLoad(): void;
  /**
   * Init intersection observer
   */
  private initObserver;
  /**
   * Intersection observer callback
   * @param entries
   */
  private onIntersect;
  /**
   * Load media
   * Toggle attributes
   */
  private loadMedia;
  /**
   * Load media
   * Toggle attribures
   */
  private resetMedia;
  /**
   * Media ready
   */
  onReady(): void;
  /**
   * On error
   */
  onError(): void;
  /**
   * Build picture tag
   * @return HTMLPictureElement
   */
  private buildPicture;
  /**
   * Component render
   * Component lifecycle method
   * @return HTMLInterventionRequestPictureElement
   */
  render(): HTMLInterventionRequestPictureElement;
}