/**
 * @fileoverview Toolbar with Ask AI, Suggest, Copy, Share, Highlight, Favorite, Open-in-new-tab, and Close buttons shown at the top of the article extract panel.
 *
 * Each button has a shadcn/Radix tooltip that appears on hover (zero delay) showing the
 * action label and its keyboard shortcut. The shortcut key definitions are exported as
 * {@link ARTICLE_TOOLBAR_SHORTCUTS} so the panel can wire up the matching key handlers.
 */
import React from 'react';
/**
 * Keyboard shortcut definitions for the article toolbar actions. `alt` means the
 * shortcut requires the Alt/Option modifier; `close` uses a bare Escape key.
 * Shared between the tooltip hints here and the key handler in the panel so the
 * displayed shortcut and the actual binding never drift apart.
 */
export declare const ARTICLE_TOOLBAR_SHORTCUTS: {
    readonly ask: {
        readonly alt: true;
        readonly key: "a";
    };
    readonly suggest: {
        readonly alt: true;
        readonly key: "s";
    };
    readonly copy: {
        readonly alt: true;
        readonly key: "c";
    };
    readonly highlight: {
        readonly alt: true;
        readonly key: "h";
    };
    readonly favorite: {
        readonly alt: true;
        readonly key: "f";
    };
    readonly open: {
        readonly alt: true;
        readonly key: "o";
    };
    readonly zoomOut: {
        readonly alt: true;
        readonly key: "-";
    };
    readonly zoomReset: {
        readonly alt: true;
        readonly key: "0";
    };
    readonly zoomIn: {
        readonly alt: true;
        readonly key: "=";
    };
    readonly close: {
        readonly alt: false;
        readonly key: "Escape";
    };
};
export type ArticleToolbarAction = keyof typeof ARTICLE_TOOLBAR_SHORTCUTS;
/**
 * Render a shortcut definition as a short, platform-aware label
 * (e.g. "⌥A" on macOS, "Alt+A" elsewhere, "Esc" for the close action).
 */
export declare function formatToolbarShortcut(action: ArticleToolbarAction): string;
interface ArticleActionButtonsProps {
    isLoadingAI: boolean;
    isLoadingFollowups: boolean;
    isLoadingFavorite: boolean;
    isFavorited: boolean;
    isHighlightMode: boolean;
    articleUrl?: string;
    fontScale?: number;
    onAskClick: () => void;
    onSuggestClick: () => void;
    onCopyClick: () => void;
    onShareClick: () => void;
    onFavoriteClick: () => void;
    onHighlightToggle: () => void;
    onZoomIn?: () => void;
    onZoomOut?: () => void;
    onZoomReset?: () => void;
    onClose: () => void;
}
declare const ArticleActionButtons: React.FC<ArticleActionButtonsProps>;
export default ArticleActionButtons;