/**
 * PropertyPane button props.
 *
 * @public
 */
export interface IPropertyPaneButtonProps {
    /**
     * Display text of the element.
     */
    text: string;
    /**
     * The type of button to render.
     * Default value is ButtonType.normal.
     */
    buttonType?: PropertyPaneButtonType;
    /**
     * The button icon shown in command or hero type.
     */
    icon?: string;
    /**
     * Description of the action this button takes.
     * Only used for compound buttons.
     */
    description?: string;
    /**
     * Whether the button is disabled.
     */
    disabled?: boolean;
    /**
     * The aria label of the button for the benefit of screen readers.
     */
    ariaLabel?: string;
    /**
     * Detailed description of the button for the benefit of screen readers.
     *
     * Besides the compound button, other button types will need more information provided to screen reader.
     */
    ariaDescription?: string;
    /**
     * A callback which is invoked on the button click, which takes in the existing value for the bound property
     * and returns the new value and which is then used to update the properties bag. This update will result in
     * the re-render of the PropertyPane with the new props.
     *
     * @param value - Value associated with element's target property in the properties bag.
     * @returns - New value for the target property, which will eventually be updated in the properties bag.
     *
     * @privateRemarks
     *
     * This is the only place where the web part developer's is allowed to pass in the callback
     * for an individual element. This is because, button click does not result in any property change, and hence
     * cannot fire the 'onChange'' event for a property, and ends up becoming a no-op. To avoid this, giving the
     * control back to the web part, so that web part can make act accordingly.
     *
     * todo: VSO# 233578:PropertyPane Button OnClick event api.
     */
    onClick: (value: any) => any;
}
/**
 * Enum for all the supported button types.
 *
 * @public
 */
export declare enum PropertyPaneButtonType {
    /**
     * Optional completion action.
     *
     * @remarks
     * Typically used at the end of a form or task when paired with the Primary button OR
     * as a standalone button to undo an action.
     * Examples: "Done" button which closes a container but doesn't make a server call or
     * an "Undo" button when a user is uploading a file in OneDrive.
     */
    Normal = 0,
    /**
     * Preferred completion action when paired with a Standard button.
     *
     * @remarks
     * Typically used at the end of a task or form.
     * Examples: "Create", "Save", "Send" which makes a server call.
     */
    Primary = 1,
    /**
     * Hero button.
     */
    Hero = 2,
    /**
     * Always used as a set with both Standard and Primary compound buttons.
     *
     * @remarks
     * Typically used in a confirmation dialog.
     * Examples: A confirmation dialog when a user discards a form or task with a possible
     * significant time investment such as an email or a complex form
     */
    Compound = 3,
    /**
     * Optional actions.
     *
     * @remarks
     * Typically used in a command bar at the top of a view, panel and inside an inline command bar.
     * Examples: Command bar at the top of OneDrive, Outlook, SharePoint. Inline command bar on the
     * top of SharePoint web parts.
     */
    Command = 4,
    /**
     * Same usage as Command button, when real estate does not allow for icons + labels or as secondary
     * actions within the command bar.
     *
     * @remarks
     * Typically used in Command bar in small and medium responsive web breakpoints. Also used on objects.
     * Examples: OneDrive small and medium responsive web breakpoint Command Bars and view icons within the
     * Command Bar. In SharePoint and OneDrive, Cards with social actions and images which allow users to
     * access the image picker. In SharePoint, formatting experiences such as formatting a story within the
     * Authoring experience. In Calendar, in the bottom of an event creation Callout when clicking inside
     * an empty time range.
     */
    Icon = 5
}
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