import { AfterViewInit, OnDestroy } from '@angular/core';
import { ResponsiveVisibility } from '../../responsive-visibility';
import * as i0 from "@angular/core";
/**
 * Digital signature properties panel (pdf.js 6.2).
 *
 * PDF.js looks the elements up by id in `getViewerConfiguration()` and
 * `digital_signature_properties_manager.js` fills them at runtime: it unhides
 * the button when the document contains signatures, writes the summary into
 * `#signaturePropertiesBanner` and one card per signature into
 * `#signaturePropertiesList`. So the template only has to render the markup
 * with the exact ids.
 *
 * Two things PDF.js cannot do for us, because it only knows the single button
 * of its own viewer:
 *
 * 1. The doorhanger's position. PDF.js opens the panel from its own click
 *    handler and leaves the placement to CSS, which puts it past the right
 *    edge of the window. Every other ngx doorhanger is positioned by
 *    `PositioningService`, so hook the same call onto the button's click.
 * 2. The copy of the button in the secondary menu. `<pdf-shy-button>` renders
 *    a second, independent button there so the toolbar can collapse on narrow
 *    screens. PDF.js neither hides it, nor gives it a verification state, nor
 *    listens for its clicks - this component bridges all three.
 */
export declare class PdfSignaturePropertiesComponent implements AfterViewInit, OnDestroy {
    show: import("@angular/core").InputSignal<ResponsiveVisibility>;
    /** The verification states PDF.js puts on the button (see `#updateButtonState()`). */
    private static readonly STATE_CLASSES;
    private readonly elementRef;
    private button;
    /** The `<pdf-shy-button>` host - what PDF.js addresses as `button.parentElement`. */
    private host;
    private observer;
    ngAfterViewInit(): void;
    ngOnDestroy(): void;
    /**
     * Copies the state PDF.js maintains on the primary button over to the copy
     * in the secondary menu, which PDF.js does not know about. Without this the
     * overflow menu would offer "Signature properties" for every document, and
     * would never show whether the signatures check out.
     */
    private mirrorToSecondaryMenu;
    /**
     * Runs before PDF.js's own click handler has unhidden the panel;
     * positionPopupBelowItsButton() defers into a setTimeout, so by the time it
     * measures, the panel is visible.
     */
    onClick: (_event?: Event, isSecondaryMenu?: boolean) => void;
    static ɵfac: i0.ɵɵFactoryDeclaration<PdfSignaturePropertiesComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<PdfSignaturePropertiesComponent, "pdf-signature-properties", never, { "show": { "alias": "show"; "required": false; "isSignal": true; }; }, {}, never, never, false, never>;
}