import { Observable } from 'rxjs';
import { IClipboardResponse } from './interface';
export declare class ClipboardService {
    document: any;
    private window;
    private tempTextArea;
    private copySubject;
    copyResponse$: Observable<IClipboardResponse>;
    constructor(document: any, window: any);
    readonly isSupported: boolean;
    isTargetValid(element: HTMLInputElement | HTMLTextAreaElement): boolean;
    /**
     * copyFromInputElement
     */
    copyFromInputElement(targetElm: HTMLInputElement | HTMLTextAreaElement): boolean;
    isCopySuccessInIE11(): boolean;
    /**
     * Creates a fake textarea element, sets its value from `text` property,
     * and makes a selection on it.
     */
    copyFromContent(content: string, container?: HTMLElement): boolean;
    destroy(container?: HTMLElement): void;
    private selectTarget;
    private copyText;
    private clearSelection;
    private createTempTextArea;
    /**
     * Pushes copy operation response to copySubject, to provide global access
     * to the response.
     */
    pushCopyReponse(response: IClipboardResponse): void;
}