import { AfterViewInit, ChangeDetectorRef, ElementRef, OnDestroy, TemplateRef } from '@angular/core';
import { NgxExtendedPdfViewerService } from '../../ngx-extended-pdf-viewer.service';
import { PdfShyButtonService } from '../../toolbar/pdf-shy-button/pdf-shy-button-service';
import { PDFNotificationService } from './../../pdf-notification-service';
import * as i0 from "@angular/core";
export declare class PdfSecondaryToolbarComponent implements AfterViewInit, OnDestroy {
    private readonly element;
    notificationService: PDFNotificationService;
    private readonly platformId;
    pdfShyButtonService: PdfShyButtonService;
    private readonly ngxExtendedPdfViewerService;
    private readonly cdr;
    customSecondaryToolbar: import("@angular/core").InputSignal<TemplateRef<any> | undefined>;
    secondaryToolbarTop: import("@angular/core").InputSignal<any>;
    mobileFriendlyZoomScale: import("@angular/core").InputSignal<number>;
    localizationInitialized: import("@angular/core").InputSignal<boolean>;
    spreadChange: import("@angular/core").OutputEmitterRef<"off" | "even" | "odd">;
    disablePreviousPage: boolean;
    disableNextPage: boolean;
    get secondaryToolbarMaxHeight(): string;
    private classMutationObserver;
    private PDFViewerApplication;
    private eventBusAbortController;
    constructor(element: ElementRef, notificationService: PDFNotificationService, platformId: Object, pdfShyButtonService: PdfShyButtonService, ngxExtendedPdfViewerService: NgxExtendedPdfViewerService, cdr: ChangeDetectorRef);
    /**
     * Runs `callback` and re-renders this component.
     *
     * The callback is scheduled from a pdf.js event bus listener, which runs
     * outside Angular's zone, so neither zone.js nor a signal write schedules a
     * change detection run for us - the button kept showing the previous state
     * until an unrelated click happened to trigger one. The view can already be
     * destroyed by the time a queued callback runs, and `detectChanges()` throws
     * on a destroyed view, so that case is skipped.
     */
    private asyncWithCD;
    onPdfJsInit(): void;
    updateUIState(): void;
    onSpreadChange(newSpread: 'off' | 'odd' | 'even'): void;
    onResize(): void;
    ngAfterViewInit(): void;
    ngOnDestroy(): void;
    checkVisibility(): void;
    private checkVisibilityRecursively;
    /**
     * Checks if a responsive visibility class (e.g. visibleSmallView) is currently
     * hidden at the current viewport width. These classes make buttons visible only
     * at smaller viewports via CSS media queries (max-width). We can't use
     * getComputedStyle because the secondary toolbar itself is hidden, so we
     * extract the actual breakpoint from the dynamic CSS and compare it to the
     * current viewport width.
     */
    private isResponsiveClassHidden;
    /**
     * Checks if the given responsive class is currently active by evaluating
     * the matching CSS @media rule from the dynamic stylesheet.
     */
    private isResponsiveBreakpointActive;
    onClick(htmlevent: Event, action: undefined | ((htmlevent: Event, secondaryToolbar: boolean) => void), eventBusName?: string, closeOnClick?: boolean): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<PdfSecondaryToolbarComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<PdfSecondaryToolbarComponent, "pdf-secondary-toolbar", never, { "customSecondaryToolbar": { "alias": "customSecondaryToolbar"; "required": false; "isSignal": true; }; "secondaryToolbarTop": { "alias": "secondaryToolbarTop"; "required": false; "isSignal": true; }; "mobileFriendlyZoomScale": { "alias": "mobileFriendlyZoomScale"; "required": true; "isSignal": true; }; "localizationInitialized": { "alias": "localizationInitialized"; "required": true; "isSignal": true; }; }, { "spreadChange": "spreadChange"; }, never, never, false, never>;
}