/**
 * @license
 * Copyright 2019 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import '../../focus/md-focus-ring.js';
import '../../ripple/ripple.js';
import { LitElement } from 'lit';
import { internals } from '../../internal/controller/element-internals.js';
import { FormSubmitter, FormSubmitterType } from '../../internal/controller/form-submitter.js';
/**
 * A button component.
 */
export declare abstract class Button extends LitElement implements FormSubmitter {
    /** @nocollapse */
    static readonly formAssociated = true;
    /** @nocollapse */
    static shadowRootOptions: ShadowRootInit;
    /**
     * Whether or not the button is disabled.
     */
    disabled: boolean;
    /**
     * The URL that the link button points to.
     */
    href: string;
    /**
     * Where to display the linked `href` URL for a link button. Common options
     * include `_blank` to open in a new tab.
     */
    target: '_blank' | '_parent' | '_self' | '_top' | '';
    /**
     * Whether to render the icon at the inline end of the label rather than the
     * inline start.
     *
     * _Note:_ Link buttons cannot have trailing icons.
     */
    trailingIcon: boolean;
    /**
     * Whether to display the icon or not.
     */
    hasIcon: boolean;
    type: FormSubmitterType;
    value: string;
    get name(): string;
    set name(name: string);
    /**
     * The associated form element with which this element's value will submit.
     */
    get form(): HTMLFormElement;
    private readonly buttonElement;
    private readonly assignedIcons;
    /** @private */
    [internals]: ElementInternals;
    constructor();
    focus(): void;
    blur(): void;
    protected render(): import("lit-html").TemplateResult;
    protected getRenderClasses(): {
        'button--icon-leading': boolean;
        'button--icon-trailing': boolean;
    };
    protected renderElevation?(): unknown;
    protected renderOutline?(): unknown;
    private renderContent;
    private readonly handleActivationClick;
    private handleSlotChange;
}