import type React from 'react';
import type { SidebarBlockConfig } from '../Sidebar/Block';
export declare type URIDetailView = React.VoidFunctionComponent<{
    uri: string;
}>;
export interface ProtocolConfig {
    main: URIDetailView;
    title: URIDetailView;
    /**
     * Provides plain-text title.
     *
     * @deprecated do not use.
     * For window titles, put <Helmet> within relevant tab component.
     */
    plainTitle?: (uri: string) => Promise<string>;
}
/** Defines which React components should be used for which protocol among tabs. */
export declare type ProtocolRegistry<Protocol extends string> = Record<Protocol, ProtocolConfig>;
interface SidebarConfig {
    icon: React.FC<Record<never, never>>;
    title: JSX.Element | string;
    blocks: SidebarBlockConfig[];
    description?: string;
}
export declare type SuperSidebarConfig<SidebarIDs extends Readonly<string[]>> = {
    [sidebarID in SidebarIDs[number]]: SidebarConfig;
};
export declare type TabbedWorkspaceContext<Proto extends string, SidebarID extends string> = {
    /** The URI of currently focused tab. */
    focusedTabURI?: string;
    /** Navigates currently focused tab to a new URI. */
    navigateFocusedTab?: (newURI: string) => void;
    /** Open a new tab with specified URI next to the focused one. */
    spawnTab: (uri: string, opts?: {
        atIdx?: number;
    }) => void;
    /** Despawns tab with given URI. */
    closeTabWithURI: (uri: string) => void;
    protocolConfiguration: ProtocolRegistry<Proto>;
    state: State<SidebarID>;
    dispatch: React.Dispatch<Action<SidebarID>>;
};
/** Current state of tabs and sidebars in the workspace. */
export interface State<SidebarID extends string> {
    /**
     * Tabs, according to the order
     * (would be left-to-right in LTR, currently the only direction supported).
     */
    detailTabURIs: Readonly<string[]>;
    /** Selected tab index in `detailTabURIs`. */
    focusedTabIdx: number;
    /**
     * Selected sidebar ID
     * (see `TabbedWorkspaceProps['sidebarConfig']`, sidebar configuration
     * is not part of state (though maybe it should be?)).
     */
    selectedSidebarID?: SidebarID;
}
export declare type Action<SidebarID extends string> = {
    type: 'spawn-tab';
    payload: {
        /**
         * If specified, tab will be spawned at this index.
         * Every tab at index >= atIdx will be shifted to the right,
         * increasing index by 1.
         */
        atIdx?: number;
        uri: string;
    };
} | {
    type: 'focus-tab';
    payload: {
        idx: number;
    };
} | {
    type: 'navigate-focused-tab';
    payload: {
        uri: string;
    };
} | {
    type: 'move-tab';
    payload: {
        sourceIdx: number;
        destinationIdx: number;
    };
} | {
    type: 'close-tab';
    payload: {
        idx: number;
    };
} | {
    type: 'close-tab-with-uri';
    payload: {
        uri: string;
    };
} | {
    type: 'focus-sidebar';
    payload: {
        id: SidebarID;
    };
};
export {};