/**
 * @license
 * Copyright 2018 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import '../../focus/md-focus-ring.js';
import '../../ripple/ripple.js';
import { LitElement } from 'lit';
type LinkTarget = '_blank' | '_parent' | '_self' | '_top';
declare const iconButtonBaseClass: import("../../labs/behaviors/mixin.js").MixinReturn<import("../../labs/behaviors/mixin.js").MixinReturn<import("../../labs/behaviors/mixin.js").MixinReturn<(abstract new (...args: any[]) => import("../../labs/behaviors/element-internals.js").WithElementInternals) & typeof LitElement & import("../../labs/behaviors/form-associated.js").FormAssociatedConstructor, import("../../labs/behaviors/form-associated.js").FormAssociated>, import("../../labs/behaviors/form-submitter.js").FormSubmitter>>;
/**
 * A button for rendering icons.
 *
 * @fires input {InputEvent} Dispatched when a toggle button toggles --bubbles
 * --composed
 * @fires change {Event} Dispatched when a toggle button toggles --bubbles
 */
export declare class IconButton extends iconButtonBaseClass {
    /** @nocollapse */
    static shadowRootOptions: ShadowRootInit;
    /**
     * "Soft-disables" the icon button (disabled but still focusable).
     *
     * Use this when an icon button needs increased visibility when disabled. See
     * https://www.w3.org/WAI/ARIA/apg/practices/keyboard-interface/#kbd_disabled_controls
     * for more guidance on when this is needed.
     */
    softDisabled: boolean;
    /**
     * Flips the icon if it is in an RTL context at startup.
     */
    flipIconInRtl: boolean;
    /**
     * Sets the underlying `HTMLAnchorElement`'s `href` resource attribute.
     */
    href: string;
    /**
     * The filename to use when downloading the linked resource.
     * If not specified, the browser will determine a filename.
     * This is only applicable when the icon button is used as a link (`href` is set).
     */
    download: string;
    /**
     * Sets the underlying `HTMLAnchorElement`'s `target` attribute.
     */
    target: LinkTarget | '';
    /**
     * The `aria-label` of the button when the button is toggleable and selected.
     */
    ariaLabelSelected: string;
    /**
     * When true, the button will toggle between selected and unselected
     * states
     */
    toggle: boolean;
    /**
     * Sets the selected state. When false, displays the default icon. When true,
     * displays the selected icon, or the default icon If no `slot="selected"`
     * icon is provided.
     */
    selected: boolean;
    private flipIcon;
    constructor();
    protected willUpdate(): void;
    protected render(): import("lit-html").TemplateResult;
    private renderLink;
    protected getRenderClasses(): {
        'flip-icon': boolean;
        selected: boolean;
    };
    private renderIcon;
    private renderSelectedIcon;
    private renderTouchTarget;
    private renderFocusRing;
    private renderRipple;
    connectedCallback(): void;
}
export {};