import { TranslateService } from '@ngx-translate/core';
import { Loading, LoadingController } from 'ionic-angular';
import 'rxjs/add/operator/first';
import { ComponentesConfigModel } from './../models/componentes-config.model';
import { PromptProvider } from './prompt';
/**
 * Provides the user's context to the application
 * This provider should be used to store and find the current course, mission, questions being answered
 *
 *  * TO HIDE BACKGROUND AROUND IMG:
 * ion-loading.wait-for-promise-modal {
  .loading-wrapper {
    background: transparent;
    box-shadow: none;
  }
}
 */
export declare class LoadingProvider {
    private gifPath;
    private loadingCtrl;
    private translate;
    private prompt;
    private loading;
    config: ComponentesConfigModel;
    private delayBeforeDisplayingImg;
    private knownMessages;
    private promiseQueue;
    constructor(gifPath: string, loadingCtrl: LoadingController, translate: TranslateService, prompt: PromptProvider);
    initLoading(loadingMessage: any): Loading;
    private getLoadingMessage(loadingMessage?);
    waitForPromise<T>(promise: Promise<T>, promptError?: boolean, loadingMessage?: string, keepLoadingIfResolved?: boolean): Promise<T>;
}