import { ISignal } from '@lumino/signaling';
import { Menu } from '@lumino/widgets';
import { CommandRegistry } from '@lumino/commands';
import { ICommandPalette } from '@jupyterlab/apputils';
import { INotebookTracker } from '@jupyterlab/notebook';
import { ISettingRegistry } from '@jupyterlab/settingregistry';
import { Stylist } from './stylist';
import { IFontManager, TextProperty, ITextStyleOptions, TextKind, FontFormat, IFontFaceOptions } from '.';
import * as SCHEMA from './schema';
export declare class FontManager implements IFontManager {
    protected _stylist: Stylist;
    readonly licensePaneRequested: ISignal<any, any>;
    private _fontFamilyMenus;
    private _fontSizeMenus;
    private _lineHeightMenus;
    private _menu;
    private _palette;
    private _commands;
    private _notebooks;
    private _ready;
    private _settings;
    constructor(commands: CommandRegistry, palette: ICommandPalette, notebooks: INotebookTracker);
    get ready(): Promise<void>;
    get fonts(): Map<string, IFontFaceOptions>;
    get enabled(): boolean;
    set enabled(enabled: boolean);
    get settings(): ISettingRegistry.ISettings;
    get menu(): Menu;
    get stylesheets(): HTMLStyleElement[];
    set settings(settings: ISettingRegistry.ISettings);
    dataURISrc(url: string, format?: FontFormat): Promise<string>;
    registerFontFace(options: IFontFaceOptions): void;
    getVarName(property: TextProperty, { kind }: Partial<ITextStyleOptions>): string | number | import("./_schema").ICSSOMPrimitive[] | {
        [k: string]: import("./_schema").ICSSOM;
    } | null;
    getTextStyle(property: TextProperty, { kind, notebook }: ITextStyleOptions): string | number | import("./_schema").ICSSOMPrimitive[] | {
        [k: string]: import("./_schema").ICSSOM;
    } | null;
    setTextStyle(property: TextProperty, value: SCHEMA.ICSSOM | null, { kind, notebook }: ITextStyleOptions): Promise<void>;
    cleanMetadata(metadata: SCHEMA.ISettings): void;
    embedFont(fontFamily: SCHEMA.ICSSOM, metadata: SCHEMA.ISettings): Promise<void>;
    private _onNotebooksChanged;
    private _registerNotebook;
    private _onNotebookDisposed;
    private _notebookMetaWatcher;
    fontSizeOptions(): string[];
    fontSizeCommands(prefix: string): string[];
    makeCommands(): void;
    protected fontPropMenu(parent: Menu, kind: TextKind, property: TextProperty): Menu;
    protected makeMenus(commands: CommandRegistry): void;
    settingsUpdate(): void;
    private registerFontCommands;
    requestLicensePane(font: any): void;
    hack(): void;
}