/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
/**
 * A pending copy-to-clipboard operation.
 *
 * The implementation of copying text to the clipboard modifies the DOM and
 * forces a relayout. This relayout can take too long if the string is large,
 * causing the execCommand('copy') to happen too long after the user clicked.
 * This results in the browser refusing to copy. This object lets the
 * relayout happen in a separate tick from copying by providing a copy function
 * that can be called later.
 *
 * Destroy must be called when no longer in use, regardless of whether `copy` is
 * called.
 */
export declare class PendingCopy {
    private readonly _document;
    private _textarea;
    constructor(text: string, _document: Document);
    /** Finishes copying the text. */
    copy(): boolean;
    /** Cleans up DOM changes used to perform the copy operation. */
    destroy(): void;
}