import { CourierBaseElement } from '@trycourier/courier-ui-core';
import { CourierToastThemeManager } from '../types/courier-toast-theme-manager';
import { CourierToastTheme } from '../types/courier-toast-theme';
import { InboxMessage } from '@trycourier/courier-js';
import { CourierToastItemActionClickEvent, CourierToastItemClickEvent, CourierToastItemFactoryProps } from '../types/toast';
/**
 * Default implementation of a Toast item.
 *
 * @see {@link CourierToast}
 * @public
 */
export declare class CourierToastItem extends CourierBaseElement {
    /** How long the exit animation runs before a dismissed toast's element is removed. */
    private static readonly dismissAnimationTimeoutMs;
    private _themeManager;
    private _themeSubscription;
    private _message;
    private _customToastItemContent?;
    /** Whether this toast item is auto-dismissed. */
    private readonly _autoDismiss;
    /** The timeout before the toast item is auto-dismissed, applicable if _autoDismiss is true. */
    private readonly _autoDismissTimeoutMs;
    private _autoDismissTimeout;
    /** The progress bar element, paused/resumed alongside the countdown to stay in sync. */
    private _autoDismissBar;
    private _onItemDismissedCallback;
    private _onToastItemClickCallback;
    private _onToastItemActionClickCallback;
    constructor(props: {
        message: InboxMessage;
        autoDismiss: boolean;
        autoDismissTimeoutMs: number;
        themeManager: CourierToastThemeManager;
    });
    /**
     * Registers a handler called when the item is dismissed.
     *
     * @param handler - A function to be called when the item is dismissed.
     */
    onItemDismissed(handler: (props: {
        message: InboxMessage;
    }) => void): void;
    /**
     * Registers a handler for item click events.
     *
     * @param handler - A function to be called when the item is clicked.
     */
    onToastItemClick(handler: (props: CourierToastItemClickEvent) => void): void;
    /**
     * Registers a handler for item click events.
     *
     * @param handler - A function to be called when the item is clicked.
     */
    onToastItemActionClick(handler: (props: CourierToastItemActionClickEvent) => void): void;
    /**
     * Set a custom content element for the toast item, reusing the {@link CourierToastItem}
     * container, which provides styling, animations, and event handling.
     *
     * @param factory - Function that returns an `HTMLElement` to render as the content.
     */
    setToastItemContent(factory?: (props: CourierToastItemFactoryProps) => HTMLElement): void;
    /**
     * Dismiss the toast item.
     *
     * By default the toast fades out before it's removed. Set `timeoutMs` to
     * `0` to remove the item immediately.
     *
     * @param timeoutMs - the animation duration to fade out the toast item
     */
    dismiss(timeoutMs?: number): void;
    /**
     * Pause the auto-dismiss countdown, banking the time already elapsed and
     * freezing the progress bar so the two stay in sync.
     *
     * Called by the containing {@link CourierToast} while the cursor is over the
     * toast stack, or while this item sits behind the top of the stack. No-op if
     * this item doesn't auto-dismiss.
     */
    pauseAutoDismiss(): void;
    /**
     * Resume a paused auto-dismiss countdown from where it left off.
     *
     * Called by the containing {@link CourierToast} once the cursor leaves the
     * toast stack and this item is on top of it. No-op if this item doesn't
     * auto-dismiss.
     */
    resumeAutoDismiss(): void;
    /** Freeze/unfreeze the progress bar to match the countdown. */
    private syncAutoDismissBarPlayState;
    /** @override */
    protected onComponentMounted(): void;
    /** @override */
    protected onComponentUnmounted(): void;
    get theme(): CourierToastTheme;
    /**
     * @override
     */
    static get id(): string;
    /**
     * @override
     */
    static get observedAttributes(): string[];
    /**
     * Render a toast item, either with default content or custom content if
     * a content factory function is provided.
     *
     * Note: Styles for the toast item are set in {@link CourierToast} since
     * toasts are ephemeral by nature and we want to avoid adding/removing/duplicating
     * styles as {@link CourierToastItem}s enter/exit.
     */
    private render;
    /** Create the default content for this item. */
    private createDefaultContent;
    private get messageHasActions();
    private createActionButton;
    private onClick;
}