/**
 *
 * GalleryThumbnail wraps the thumbnail strip for the Gallery. By default it renders as `Carousel` so it inherits
 * scroll-snap, loop, alignment and auto-size behavior. Gallery passes the current `activeIndex` down via the
 * `slide` prop so the carousel scrolls to the active thumbnail automatically.
 *
 * [Live Demo](https://www.primevue.dev/gallery/)
 *
 * @module gallerythumbnail
 *
 */
import type { DefineComponent, DesignToken, EmitFn, PassThrough } from '@primevue/core';
import type { ComponentHooks } from '@primevue/core/basecomponent';
import type { PassThroughOptions } from 'primevue/passthrough';
import type { Component, HTMLAttributes, VNode } from 'vue';

export declare type GalleryThumbnailPassThroughOptionType = GalleryThumbnailPassThroughAttributes | ((options: GalleryThumbnailPassThroughMethodOptions) => GalleryThumbnailPassThroughAttributes | string) | string | null | undefined;

/**
 * Custom passthrough(pt) option method.
 */
export interface GalleryThumbnailPassThroughMethodOptions {
    /**
     * Defines instance.
     */
    instance: any;
    /**
     * Defines valid properties.
     */
    props: GalleryThumbnailProps;
    /**
     * Defines valid attributes.
     */
    attrs: any;
    /**
     * Defines parent options.
     */
    parent: any;
    /**
     * Defines passthrough(pt) options in global config.
     */
    global: object | undefined;
}

/**
 * Custom passthrough(pt) options.
 * @see {@link GalleryThumbnailProps.pt}
 */
export interface GalleryThumbnailPassThroughOptions {
    /**
     * Used to pass attributes to the root's DOM element.
     */
    root?: GalleryThumbnailPassThroughOptionType;
    /**
     * Used to manage all lifecycle hooks.
     */
    hooks?: ComponentHooks;
}

/**
 * Custom passthrough attributes for each DOM elements.
 */
export interface GalleryThumbnailPassThroughAttributes {
    [key: string]: any;
}

/**
 * Defines valid properties in GalleryThumbnail component.
 */
export interface GalleryThumbnailProps {
    /**
     * Use to change the rendered element. Defaults to `Carousel` to wire the thumbnail strip into the
     * scroll-snap carousel infrastructure.
     * @defaultValue Carousel
     */
    as?: string | Component | undefined;
    /**
     * When enabled, it changes the default rendered element for the one passed as a child element.
     * @defaultValue false
     */
    asChild?: boolean | undefined;
    /**
     * Forwarded to the underlying carousel. Each item sizes itself to its intrinsic content rather than a
     * fixed slide width.
     * @defaultValue true
     */
    autoSize?: boolean | undefined;
    /**
     * Forwarded to the underlying carousel. Whether scrolling wraps around at the ends.
     * @defaultValue true
     */
    loop?: boolean | undefined;
    /**
     * Forwarded to the underlying carousel. Snap alignment for each item.
     * @defaultValue 'center'
     */
    align?: 'start' | 'center' | 'end' | undefined;
    /**
     * Forwarded to the underlying carousel. Spacing in pixels between items.
     * @defaultValue 8
     */
    spacing?: number | undefined;
    /**
     * It generates scoped CSS variables using design tokens for the component.
     */
    dt?: DesignToken<any>;
    /**
     * Used to pass attributes to DOM elements inside the component.
     */
    pt?: PassThrough<GalleryThumbnailPassThroughOptions>;
    /**
     * Used to configure passthrough(pt) options of the component.
     */
    ptOptions?: PassThroughOptions;
    /**
     * When enabled, it removes component related styles in the core.
     * @defaultValue false
     */
    unstyled?: boolean;
}

/**
 * Root element attributes forwarded to the consumer when `asChild` is enabled.
 * Includes the Carousel configuration props (`autoSize`, `loop`, `align`, `spacing`, `slide`)
 * so the consumer's element – typically `Carousel` – wires up correctly.
 */
export interface GalleryThumbnailA11yAttrs extends HTMLAttributes {
    /**
     * PrimeVue component identifier.
     */
    'data-pc-name': 'gallerythumbnail';
    /**
     * PrimeVue section identifier within the component.
     */
    'data-pc-section': 'root';
    /**
     * Forwarded to the underlying carousel.
     */
    autoSize?: boolean;
    /**
     * Forwarded to the underlying carousel.
     */
    loop?: boolean;
    /**
     * Forwarded to the underlying carousel.
     */
    align?: 'start' | 'center' | 'end';
    /**
     * Forwarded to the underlying carousel.
     */
    spacing?: number;
    /**
     * Current active slide index forwarded to the underlying carousel so it scrolls
     * to the active thumbnail automatically.
     */
    slide?: number;
}

/**
 * Defines valid slots in GalleryThumbnail component.
 */
export interface GalleryThumbnailSlots {
    /**
     * Container for `GalleryThumbnailContent` and its `GalleryThumbnailItem` children.
     * Receives consumer-targeted props when `asChild` is enabled.
     * @param {Object} scope - default slot's params.
     */
    default(scope: {
        /**
         * Computed class name for the thumbnail root (only emitted when `asChild` is enabled).
         */
        class?: string | object | Array<string | object>;
        /**
         * Attributes to spread on the consumer's root element (typically a `Carousel`) so
         * the thumbnail strip inherits carousel config plus `data-pc-*` identifiers
         * (only emitted when `asChild` is enabled).
         */
        a11yAttrs?: GalleryThumbnailA11yAttrs;
    }): VNode[];
}

/**
 * Defines valid emits in GalleryThumbnail component.
 */
export interface GalleryThumbnailEmitsOptions {}

export declare type GalleryThumbnailEmits = EmitFn<GalleryThumbnailEmitsOptions>;

/**
 * **PrimeVue - GalleryThumbnail**
 *
 * _GalleryThumbnail is a helper component for Gallery component._
 *
 * [Live Demo](https://www.primevue.dev/gallery/)
 * --- ---
 * ![PrimeVue](https://primefaces.org/cdn/primevue/images/logo-100.png)
 *
 * @group Component
 *
 */
declare const GalleryThumbnail: DefineComponent<GalleryThumbnailProps, GalleryThumbnailSlots, GalleryThumbnailEmits>;

declare module 'vue' {
    export interface GlobalComponents {
        GalleryThumbnail: DefineComponent<GalleryThumbnailProps, GalleryThumbnailSlots, GalleryThumbnailEmits>;
    }
}

export default GalleryThumbnail;