import { EventEmitter, TemplateRef } from '@angular/core';
import { LoadingState, NgxLoadWithDirective } from 'ngx-load-with';
import { Observable } from 'rxjs';
import * as i0 from "@angular/core";
export declare class NgxDataLoaderComponent<T = unknown> {
    loadedTemplate?: TemplateRef<unknown>;
    errorTemplate?: TemplateRef<unknown>;
    loadingTemplate?: TemplateRef<unknown>;
    /**
     * Function that returns an `Observable` of the data to be loaded.
     * Called on init and on reload.
     *
     * @example
     * loadFn = () => this.http.get('https://example.com/api/data')
     */
    loadFn: (args?: any) => Observable<T>;
    /**
     * Arguments to pass to `loadFn`. Changes to this property will trigger a reload.
     *
     * @example
     * loadFn = () => this.http.get('https://example.com/api/data')
     */
    loadFnArgs?: any;
    /**
     * Data to be rendered on init. When set, `loadFn` will not be invoked on init.
     * The loading state will be set to `loaded`.
     */
    initialData?: T;
    /**
     * Number of milliseconds to debounce reloads.
     * @defaultValue `0`                                                                    |
     */
    debounceTime: number;
    /**
     * Whether to keep displaying previously loaded data while reloading.
     * @defaultValue `false`
     */
    showStaleData: boolean;
    /**
     * Delay in milliseconds before showing the loading template.
     * @defaultValue `0`
     */
    loadingTemplateDelay: number;
    /**
     * Emits the data when loaded.
     */
    dataLoaded: EventEmitter<T>;
    /**
     * Emits the error when the data fails to load.
     */
    loadAttemptFailed: EventEmitter<Error>;
    /**
     * Emits when the data loading completes (either successfully or unsuccessfully).
     */
    loadAttemptFinished: EventEmitter<void>;
    /**
     * Emits when the data loading starts.
     */
    loadAttemptStarted: EventEmitter<void>;
    /**
     * Emits the loading state when it changes.
     */
    loadingStateChange: EventEmitter<LoadingState<T>>;
    loader: NgxLoadWithDirective<T>;
    setData(data: T): void;
    setError(error: Error): void;
    reload(): void;
    cancel(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<NgxDataLoaderComponent<any>, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<NgxDataLoaderComponent<any>, "ngx-data-loader", never, { "loadFn": { "alias": "loadFn"; "required": false; }; "loadFnArgs": { "alias": "loadFnArgs"; "required": false; }; "initialData": { "alias": "initialData"; "required": false; }; "debounceTime": { "alias": "debounceTime"; "required": false; }; "showStaleData": { "alias": "showStaleData"; "required": false; }; "loadingTemplateDelay": { "alias": "loadingTemplateDelay"; "required": false; }; }, { "dataLoaded": "dataLoaded"; "loadAttemptFailed": "loadAttemptFailed"; "loadAttemptFinished": "loadAttemptFinished"; "loadAttemptStarted": "loadAttemptStarted"; "loadingStateChange": "loadingStateChange"; }, ["loadedTemplate", "errorTemplate", "loadingTemplate"], never, false, never>;
}