/**
 * This is a PhET simulation widget. It is used for rendering simulations
 * from https://phet.colorado.edu/.
 */
import * as React from "react";
import { PerseusI18nContext } from "../../components/i18n-context";
import type { WidgetProps, Widget } from "../../types";
import type { UnsupportedWidgetPromptJSON } from "../../widget-ai-utils/unsupported-widget";
import type { PerseusPhetSimulationWidgetOptions } from "@khanacademy/perseus-core";
type Props = WidgetProps<PerseusPhetSimulationWidgetOptions>;
type State = {
    banner: {
        message: string;
        kind: "warning" | "critical";
    } | null;
    url: URL | null;
    isFullScreen: boolean;
};
export declare class PhetSimulation extends React.Component<Props, State> implements Widget {
    static contextType: React.Context<import("../../components/i18n-context").I18nContextType>;
    context: React.ContextType<typeof PerseusI18nContext>;
    private readonly iframeRef;
    isWidget: true;
    state: State;
    componentDidMount(): Promise<void>;
    componentDidUpdate(prevProps: any): Promise<void>;
    private getLocale;
    getPromptJSON(): UnsupportedWidgetPromptJSON;
    displayLoadFailure: () => void;
    updateSimState(urlString: string): Promise<void>;
    showLocaleWarning(url: URL): Promise<boolean>;
    /**
     * Mobile App Fullscreen Implementation
     *
     * The mobile app environment doesn't support the standard browser fullscreen API.
     * Instead, we implement a "fake" fullscreen mode with the following approach:
     *
     * 1. When fullscreen is toggled, we use a fixed position container that covers
     *    almost the entire viewport (appFullScreenWidgetContainer)
     * 2. We leave space at the bottom for the mobile app's Check Answer bar (66px)
     * 3. We position a close button in the top-right corner for exiting fullscreen
     * 4. The iframe container expands to fill the available space
     *
     * This differs from the web implementation which uses the browser's
     * native Fullscreen API via requestFullscreen().
     *
     * Note: Unfortunately, full screen is not supported in iOS mobile web due to
     * the lack of support for the Fullscreen API.
     */
    toggleFullScreen: () => void;
    render(): React.ReactNode;
}
declare const _default: {
    name: string;
    displayName: string;
    widget: typeof PhetSimulation;
    isLintable: true;
};
export default _default;