import { InputModalityDetector } from '@angular/cdk/a11y';
import * as i0 from "@angular/core";
/**
 * JS-based :focus-visible state. Based on the convention in Sapphire styles, it:
 * - adds js-focus class to the host element
 * - adds is-focus class when `spFocused` is true, and focus should be visible.
 * is-focus class can be customized via `spFocusedClass` input

 */
export declare class FocusedDirective {
    private inputModalityDetector;
    /**
     * CSS class to be applied when the element is focused, and focus should be visible.
     */
    focusedClass: string;
    /**
     * Whether the element is (virtually) focused. If not provided, the actual focus
     * state of the host element will be used to determine the focus state.
     */
    focusedInput?: boolean;
    private hostFocused;
    private get className();
    private onFocus;
    private onBlur;
    isFocused(): boolean;
    isFocusVisible(): boolean;
    constructor(inputModalityDetector: InputModalityDetector);
    static ɵfac: i0.ɵɵFactoryDeclaration<FocusedDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<FocusedDirective, "[spFocused]", ["spFocused"], { "focusedClass": "spFocusedClass"; "focusedInput": "spFocused"; }, {}, never, never, true, never>;
}