import { Obj } from '@mathigon/core';
declare global {
    interface Window {
        BoostBrowser?: BrowserInstance;
        Touch: unknown;
        chrome: unknown;
    }
}
export type ResizeEvent = {
    width: number;
    height: number;
};
type ResizeCallback = (e: ResizeEvent) => void;
type Theme = {
    name: 'dark' | 'light' | 'auto';
    isDark: boolean;
};
declare class BrowserInstance {
    readonly isMobile: boolean;
    readonly isRetina: boolean;
    readonly isTouch = true;
    readonly isChrome: boolean;
    readonly isFirefox: boolean;
    readonly isAndroid: boolean;
    readonly isIOS: boolean;
    readonly isSafari: boolean;
    constructor();
    private readonly loadQueue;
    private loaded;
    private afterLoad;
    /** Binds an event listener that is triggered when the page is loaded. */
    ready(fn: () => void): void;
    /** Forces a re-paint. This is useful when updating transition properties. */
    redraw(): void;
    width: number;
    height: number;
    private readonly resizeCallbacks;
    private applyResize;
    onResize(fn: ResizeCallback): void;
    offResize(fn: ResizeCallback): void;
    resize(): void;
    readonly theme: Theme;
    private readonly themeChangedCallbacks;
    private themeOverride;
    private darkQuery;
    private applyThemeChange;
    setTheme(name: 'dark' | 'light' | 'auto'): void;
    onThemeChange(fn: (theme: Theme) => void): void;
    /** Returns the hash string of the current window. */
    getHash(): string;
    /** Set the hash string of the current window. */
    setHash(h: string): void;
    /** Set the URL of the current window. */
    setURL(url: string, title?: string): void;
    /** Returns a JSON object of all cookies. */
    getCookies(): Obj<string>;
    getCookie(name: string): string | undefined;
    setCookie(name: string, value: unknown, maxAge?: number): void;
    deleteCookie(name: string): void;
    private localStorage?;
    setStorage(key: string, value: unknown): void;
    getStorage(key: string): any;
    deleteStorage(key: string): void;
    /** The current active element on the page (e.g. and `<input>`). */
    getActiveInput(): import("./elements").HTMLView | undefined;
    get formIsActive(): boolean;
}
export declare const Browser: BrowserInstance;
/** Replaces SVG `<use>` imports that are not supported by older browsers. */
export declare function replaceSvgImports(): void;
export declare function keyCode(e: KeyboardEvent): string;
export declare function bindAccessibilityEvents(parent?: HTMLElement): void;
export {};