import { PharosElement } from '../base/pharos-element';
import type { TemplateResult, CSSResultArray, PropertyValues } from 'lit';
import type { HeadingLevel } from '../heading/pharos-heading';
export type { HeadingLevel };
import { PharosHeading } from '../heading/pharos-heading';
import { PharosLink } from '../link/pharos-link';
import { PharosIcon } from '../icon/pharos-icon';
import { PharosButton } from '../button/pharos-button';
import { PharosCheckbox } from '../checkbox/pharos-checkbox';
export type ImageCardVariant = 'base' | 'collection' | 'promotional' | 'selectable' | 'selectable-collection';
declare const PharosImageCard_base: typeof PharosElement;
/**
 * Pharos image card component.
 *
 * @tag pharos-image-card
 *
 * @slot image - Contains the image to display on the card.
 * @slot metadata - Contains the metadata for the item.
 * @slot title - Contains the title for the item (renders if title prop is not set).
 * @slot action-button - Contains the action-button for the item (renders if action-menu prop is not set).
 *
 */
export declare class PharosImageCard extends PharosImageCard_base {
    static elementDefinitions: {
        'pharos-heading': typeof PharosHeading;
        'pharos-link': typeof PharosLink;
        'pharos-icon': typeof PharosIcon;
        'pharos-button': typeof PharosButton;
        'pharos-checkbox': typeof PharosCheckbox;
    };
    /**
     * Indicates the title of the item presented in the card.
     * @attr title
     */
    title: string;
    /**
     * Indicates the item type of the source content represented by the card.
     * @attr source-type
     */
    sourceType?: string;
    /**
     * Indicates the link to apply to the title and image.
     * @attr link
     * @type {string | null}
     */
    link: string | null;
    /**
     * @deprecated
     * Indicates the label to apply to the image link.
     * @attr image-link-label
     */
    imageLinkLabel?: string;
    /**
     * Indicates the variant of card.
     * @attr variant
     */
    variant: ImageCardVariant;
    /**
     * Indicates if the image is not available or accessible.
     * @attr error
     */
    error: boolean;
    /**
     * Indicates if the metadata should only show on hover of the image.
     * @attr subtle
     */
    subtle: boolean;
    /**
     * Indicates the action menu id to be passed to the action button.
     * @attr action-menu
     */
    actionMenu?: string;
    /**
     * The heading level to use for the card title when using the title property.
     * @attr heading-level
     * @type {HeadingLevel | undefined}
     */
    headingLevel?: HeadingLevel;
    /**
     * Indicates subtler styling for the selectable card variant and that the card is only selectable by clicking on the checkbox.
     * @attr subtle-select
     */
    subtleSelect?: boolean;
    /**
     * Indicates if the image card is selected
     * @attr selected
     */
    _isSelected: boolean;
    /**
     * Indicates if the image card is in a disabled state
     * @attr selected
     */
    disabled: boolean;
    /**
     * Indicates if the image card title link should render the visited link styling.
     * @attr indicate-link-visited
     */
    indicateLinkVisited: boolean;
    private _isSelectableHovered;
    private _title?;
    private _checkbox;
    static get styles(): CSSResultArray;
    protected update(changedProperties: PropertyValues): void;
    private _isSelectable;
    private _handleClick;
    private _handleImageMouseEnter;
    private _handleImageMouseLeave;
    private _handleMouseEnterSelectable;
    private _handleMouseLeaveSelectable;
    private _renderCollectionImageLinkContent;
    private _renderCollectionImage;
    private _renderLinkContent;
    private _renderHoverMetadata;
    private _renderBaseImage;
    private _renderImage;
    private _chooseHeadingPreset;
    private _hasTitle;
    private _renderTitle;
    private _renderActionButton;
    private _renderSourceType;
    private _renderMetadata;
    protected render(): TemplateResult;
    private _cardToggleSelect;
    private _isSubtleSelectHover;
    private _showSubtleOverlay;
    private _isSelectableCardHover;
    private _isSelectableViaCard;
    private _isDisabledSelectable;
    private _renderCheckbox;
}
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