import { UserCameraHelperItemType, UserCameraHelperItemPosition } from './enums';
import { UserCameraHelperButtonProps, UserCameraHelperButtonInterface, UserCameraHelperButtonOnclickCallback, UserCameraHelperCallbackFunctionArguments } from './types';
import { PluginIconType } from '../common/icon';
export declare class UserCameraHelperButton implements UserCameraHelperButtonInterface {
    id: string;
    type: UserCameraHelperItemType;
    label: string;
    displayFunction?: (args: UserCameraHelperCallbackFunctionArguments) => boolean;
    icon: PluginIconType;
    tooltip: string;
    disabled: boolean;
    dataTest: string;
    position: UserCameraHelperItemPosition;
    onClick: (args: UserCameraHelperButtonOnclickCallback) => void;
    /**
     * Returns object to be used in the setter for the UserCamera Helper. In this case,
     * a button.
     *
     * @param label - label to be displayed in userCamera helper button (Not mandatory).
     * @param tooltip - label to be displayed when hovering the userCamera helper button.
     * @param icon - icon to be used in the userCamera helper button. It goes in the left side of it.
     * @param onClick - function to be called when clicking the button.
     * @param displayFunction - function to tell BBB core which cameras will receive this extensible
     * area.
     * @param position - position to place the userCamera helper button.
     * See {@link UserCameraHelperItemPosition}
     * @param disabled - if true, the userCamera helper button will not be clickable
     * @param dataTest - string attribute to be used for testing
     *
     * @returns Object that will be interpreted by the core of Bigbluebutton (HTML5).
     */
    constructor({ id, label, icon, tooltip, disabled, dataTest, onClick, position, displayFunction, }: UserCameraHelperButtonProps);
    setItemId: (id: string) => void;
}