import { CSSResultGroup, PropertyValues, TemplateResult } from 'lit';
import { SbbOpenCloseBaseElement } from '../core/base-elements.ts';
type SbbToastPositionVertical = 'top' | 'bottom';
type SbbToastPositionHorizontal = 'left' | 'start' | 'center' | 'right' | 'end';
export type SbbToastPosition = `${SbbToastPositionVertical}-${SbbToastPositionHorizontal}`;
declare const SbbToastElement_base: import('../core/mixins.ts').AbstractConstructor<import('../icon.ts').SbbIconNameMixinType> & import('../core/mixins.ts').AbstractConstructor<import('../core/mixins.ts').SbbReadonlyMixinType> & typeof SbbOpenCloseBaseElement;
/**
 * It displays a toast notification.
 *
 * @slot - Use the unnamed slot to add content to the `sbb-toast`.
 * @slot icon - Assign a custom icon via slot.
 * @slot action - Provide a custom action for this toast.
 * @cssprop [--sbb-toast-z-index=var(--sbb-overlay-default-z-index)] - To specify a custom stack order,
 * the `z-index` can be overridden by defining this CSS variable. The default `z-index` of the
 * component is set to `var(--sbb-overlay-default-z-index)` with a value of `1000`.
 */
export declare class SbbToastElement extends SbbToastElement_base {
    static readonly elementName: string;
    static styles: CSSResultGroup;
    /**
     * The length of time in milliseconds to wait before automatically dismissing the toast.
     * If 0 (default), it stays open indefinitely.
     * From accessibility perspective, it is recommended to set a timeout of at least 20 seconds.
     */
    accessor timeout: number;
    /** The position where to place the toast. */
    accessor position: SbbToastPosition;
    /**
     * The ARIA politeness level.
     * Check https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/ARIA_Live_Regions#live_regions for further info
     */
    accessor politeness: 'polite' | 'assertive' | 'off';
    private _closeTimeout?;
    private _language;
    private _darkModeController;
    constructor();
    connectedCallback(): void;
    disconnectedCallback(): void;
    protected willUpdate(changedProperties: PropertyValues<this>): void;
    /**
     * Open the toast.
     * If there are other opened toasts in the page, close them first.
     */
    open(): void;
    /**
     * Close the toast.
     */
    close(): void;
    private _handleClosing;
    private _handleOpening;
    private _onClick;
    private _isZeroAnimationDuration;
    /**
     * Slotted text nodes are not read correctly by screen readers on Chrome.
     * To address the problem, if there is at least a root text node,
     * we wrap the whole content in a <span> tag
     */
    private _onContentSlotChange;
    private _syncSlottedElements;
    private _onToastAnimationEnd;
    /**
     * Since we do not stack toasts, we force the closing on other existing opened ones
     */
    private _closeOtherToasts;
    private _isLightMode;
    protected render(): TemplateResult;
}
declare global {
    interface HTMLElementTagNameMap {
        'sbb-toast': SbbToastElement;
    }
}
export {};
//# sourceMappingURL=toast.component.d.ts.map