import type { PDFViewer } from 'pdfjs-dist/types/web/pdf_viewer';
import type { PDFThumbnailViewer } from 'pdfjs-dist/types/web/pdf_thumbnail_viewer';
import type { PDFPageView } from 'pdfjs-dist/types/web/pdf_page_view';
import * as i0 from "@angular/core";
interface VisiblePage {
    id: number;
}
interface VisiblePages {
    first?: VisiblePage;
    last?: VisiblePage;
    views?: Array<{
        view: PDFPageView;
    }>;
}
/**
 *
 * RenderingQueueServices rendering of the views for pages and thumbnails.
 *
 */
export declare class RenderingQueueServices {
    renderingStates: {
        INITIAL: number;
        RUNNING: number;
        PAUSED: number;
        FINISHED: number;
    };
    CLEANUP_TIMEOUT: number;
    pdfViewer: PDFViewer | null;
    pdfThumbnailViewer: PDFThumbnailViewer | null;
    onIdle: (() => void) | null;
    highestPriorityPage: string | null;
    idleTimeout: number | null;
    printing: boolean;
    isThumbnailViewEnabled: boolean;
    /**
     * Set the instance of the PDF Viewer
     *
     * @param pdfViewer viewer instance
     */
    setViewer(pdfViewer: PDFViewer): void;
    /**
     * Sets the instance of the PDF Thumbnail Viewer
     *
     * @param pdfThumbnailViewer viewer instance
     */
    setThumbnailViewer(pdfThumbnailViewer: PDFThumbnailViewer): void;
    /**
     * Check if the view has highest rendering priority
     *
     * @param view view to render
     * @returns `true` if the view has higher priority, otherwise `false`
     */
    isHighestPriority(view: PDFPageView): boolean;
    renderHighestPriority(currentlyVisiblePages?: unknown): void;
    /**
     * Gets the highest priority page to render from the visible pages
     * This method is part of the PDFRenderingQueue interface compatibility
     *
     * @param visible visible pages information
     * @param views array of page views
     * @param scrolledDown whether the user scrolled down
     * @returns the highest priority page view to render, null if all done, or false if no visible pages
     */
    getHighestPriority(visible: VisiblePages, views: PDFPageView[], scrolledDown: boolean): PDFPageView | null | false;
    hasViewer(): boolean;
    /**
     * Checks if the view rendering is finished
     *
     * @param view the View instance to check
     * @returns `true` if rendering is finished, otherwise `false`
     */
    isViewFinished(view: PDFPageView): boolean;
    /**
     * Render a page or thumbnail view. This calls the appropriate function
     * based on the views state. If the view is already rendered it will return
     * false.
     *
     * @param view View instance to render
     * @returns the rendered state of the view
     */
    renderView(view: PDFPageView): boolean;
    static ɵfac: i0.ɵɵFactoryDeclaration<RenderingQueueServices, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<RenderingQueueServices>;
}
export {};