import { MimeData } from '@lumino/coreutils';
export type ClipboardData = string | MimeData;
/**
 * The clipboard interface.
 */
export declare namespace Clipboard {
    /**
     * Get the application clipboard instance.
     */
    function getInstance(): MimeData;
    /**
     * Set the application clipboard instance.
     *
     * @deprecated will be removed in a future release. Use `SystemClipboard.getInstance`.
     */
    function setInstance(value: MimeData): void;
    /**
     * Copy text to the system clipboard.
     *
     * #### Notes
     * This can only be called in response to a user input event.
     */
    function copyToSystem(clipboardData: ClipboardData): void;
    /**
     * Generate a clipboard event on a node.
     *
     * @param node - The element on which to generate the event.
     *
     * @param type - The type of event to generate.
     *   `'paste'` events cannot be programmatically generated.
     *
     * #### Notes
     * This can only be called in response to a user input event.
     */
    function generateEvent(node: HTMLElement, type?: 'copy' | 'cut'): void;
}
/**
 * The clipboard interface supporting the native clipboard API.
 */
export declare namespace SystemClipboard {
    /**
     * Get the system clipboard instance.
     */
    function getInstance(): IClipboard;
    /**
     * The interface for the system clipboard.
     */
    interface IClipboard {
        /**
         * Whether the clipboard has data for a given mime type.
         * Returns `false` if the data does not exist.
         *
         * @param mime - The mime type to check.
         */
        hasData(mime: string): Promise<boolean>;
        /**
         * Retrieve the data for a given mime type.
         * Returns `null` if the data does not exist.
         *
         * @param mime - The mime type to retrieve.
         */
        getData(mime: string): Promise<unknown | null>;
        /**
         * Set the data for a given mime type.
         *
         * @param mime - The mime type to set.
         * @param data - The data to set.
         */
        setData(mime: string, data: unknown): Promise<void>;
        /**
         * Clear the clipboard.
         */
        clear(): void;
    }
}