/**
 * Copyright Aquera Inc 2023
 *
 * This source code is licensed under the BSD-3-Clause license found in the
 * LICENSE file in the root directory of this source tree.
 */
import '../nile-icon-button/nile-icon-button';
import NileElement from '../internal/nile-element';
import type { CSSResultGroup, TemplateResult } from 'lit';
/**
 * Nile drawer component.
 *
 * @tag nile-drawer
 *
 * @summary Drawers slide in from a container to expose additional options and information.
 *
 * @dependency nile-icon-button
 *
 * @slot - The drawer's main content.
 * @slot label - The drawer's label. Alternatively, you can use the `label` attribute.
 * @slot header-actions - Optional actions to add to the header. Works best with `<nile-icon-button>`.
 * @slot footer - The drawer's footer, usually one or more buttons representing various options.
 *
 * @event nile-show - Emitted when the drawer opens.
 * @event nile-after-show - Emitted after the drawer opens and all animations are complete.
 * @event nile-hide - Emitted when the drawer closes.
 * @event nile-after-hide - Emitted after the drawer closes and all animations are complete.
 * @event nile-initial-focus - Emitted when the drawer opens and is ready to receive focus. Calling
 *   `event.preventDefault()` will prevent focusing and allow you to set it on a different element, such as an input.
 * @event {{ source: 'close-button' | 'keyboard' | 'overlay' }} nile-request-close - Emitted when the user attempts to
 *   close the drawer by clicking the close button, clicking the overlay, or pressing escape. Calling
 *   `event.preventDefault()` will keep the drawer open. Avoid using this unless closing the drawer will result in
 *   destructive behavior such as data loss.
 *
 * @csspart base - The component's base wrapper.
 * @csspart overlay - The overlay that covers the screen behind the drawer.
 * @csspart panel - The drawer's panel (where the drawer and its content are rendered).
 * @csspart header - The drawer's header. This element wraps the title and header actions.
 * @csspart header-actions - Optional actions to add to the header. Works best with `<nile-icon-button>`.
 * @csspart title - The drawer's title.
 * @csspart close-button - The close button, an `<nile-icon-button>`.
 * @csspart close-button__base - The close button's exported `base` part.
 * @csspart body - The drawer's body.
 * @csspart footer - The drawer's footer.
 *
 * @cssproperty --size - The preferred size of the drawer. This will be applied to the drawer's width or height
 *   depending on its `placement`. Note that the drawer will shrink to accommodate smaller screens.
 * @cssproperty --header-spacing - The amount of padding to use for the header.
 * @cssproperty --body-spacing - The amount of padding to use for the body.
 * @cssproperty --footer-spacing - The amount of padding to use for the footer.
 *
 * @animation drawer.showTop - The animation to use when showing a drawer with `top` placement.
 * @animation drawer.showEnd - The animation to use when showing a drawer with `end` placement.
 * @animation drawer.showBottom - The animation to use when showing a drawer with `bottom` placement.
 * @animation drawer.showStart - The animation to use when showing a drawer with `start` placement.
 * @animation drawer.hideTop - The animation to use when hiding a drawer with `top` placement.
 * @animation drawer.hideEnd - The animation to use when hiding a drawer with `end` placement.
 * @animation drawer.hideBottom - The animation to use when hiding a drawer with `bottom` placement.
 * @animation drawer.hideStart - The animation to use when hiding a drawer with `start` placement.
 * @animation drawer.denyClose - The animation to use when a request to close the drawer is denied.
 * @animation drawer.overlay.show - The animation to use when showing the drawer's overlay.
 * @animation drawer.overlay.hide - The animation to use when hiding the drawer's overlay.
 */
export declare class NileDrawer extends NileElement {
    static styles: CSSResultGroup;
    private readonly hasSlotController;
    private modal;
    private originalTrigger;
    drawer: HTMLElement;
    panel: HTMLElement;
    overlay: HTMLElement;
    /**
     * Indicates whether or not the drawer is open. You can toggle this attribute to show and hide the drawer, or you can
     * use the `show()` and `hide()` methods and this attribute will reflect the drawer's open state.
     */
    open: boolean;
    closeOnEscape: boolean;
    /**
     * The drawer's label as displayed in the header. You should always include a relevant label even when using
     * `no-header`, as it is required for proper accessibility. If you need to display HTML, use the `label` slot instead.
     */
    label: string;
    /** The direction from which the drawer will open. */
    placement: 'top' | 'end' | 'bottom' | 'start';
    /**
     * By default, the drawer slides out of its containing block (usually the viewport). To make the drawer slide out of
     * its parent element, set this attribute and add `position: relative` to the parent.
     */
    contained: boolean;
    /**
     * Drawer doesnt close when clicled on overlay, the only way to close is to do by handling open property
     */
    preventOverlayClose: boolean;
    /**
     * Removes the header. This will also remove the default close button, so please ensure you provide an easy,
     * accessible way for users to dismiss the drawer.
     */
    noHeader: boolean;
    connectedCallback(): void;
    firstUpdated(): void;
    disconnectedCallback(): void;
    private requestClose;
    private addOpenListeners;
    private removeOpenListeners;
    private handleDocumentKeyDown;
    handleOpenChange(): Promise<void>;
    handleNoModalChange(): void;
    /** Shows the drawer. */
    show(): Promise<void>;
    /** Hides the drawer */
    hide(): Promise<void>;
    render(): TemplateResult<1>;
}
declare global {
    interface HTMLElementTagNameMap {
        'nile-drawer': NileDrawer;
    }
}