fx_cast/ext/src/global.d.ts

// Define replacement types
declare const MIRRORING_APP_ID: string;
declare const APPLICATION_NAME: string;
declare const APPLICATION_VERSION: string;

declare type Nullable<T> = T | null;

declare interface Object {
    // eslint-disable-next-line @typescript-eslint/ban-types
    wrappedJSObject: Object;
}

declare interface CanvasRenderingContext2D {
    DRAWWINDOW_DRAW_CARET: 0x01;
    DRAWWINDOW_DO_NOT_FLUSH: 0x02;
    DRAWWINDOW_DRAW_VIEW: 0x04;
    DRAWWINDOW_USE_WIDGET_LAYERS: 0x08;
    DRAWWINDOW_ASYNC_DECODE_IMAGES: 0x10;

    drawWindow (
            window: Window
          , x: number, y: number
          , w: number, h: number
          , bgColor: string
          , flags: number): void;
}

declare interface HTMLCanvasElement {
    captureStream (frameRate?: number): MediaStream;
}

declare interface MediaTrackConstraints {
    cursor: "always" | "motion" | "never";
}

declare interface RTCPeerConnection {
    addStream (mediaStream: MediaStream): void;
}

declare interface MediaDevices {
    getDisplayMedia (constraints: MediaStreamConstraints)
            : Promise<MediaStream>;
}


interface CloneIntoOptions {
    cloneFunctions?: boolean;
    wrapReflectors?: boolean;
}

declare function cloneInto<T> (
        obj: T
      , targetScope: Window
      , options?: CloneIntoOptions): T;


interface ExportFunctionOptions {
    defineAs: string;
    allowCallbacks?: boolean;
    allowCrossOriginArguments?: boolean;
}

type ExportFunctionFunc = (...args: any[]) => any;

declare function exportFunction (
        func: ExportFunctionFunc
      , targetScope: any
      , options?: ExportFunctionOptions): ExportFunctionFunc;


// Fix issues with @types/firefox-webext-browser
declare namespace browser.events {
    /**
     * Shouldn't enforce limited function signature across all
     * event types.
     */
    interface Event {
        addListener (...args: any[]): void | Promise<void>;
        removeListener (...args: any[]): void | Promise<void>;
    }
}

declare namespace browser.runtime {
    interface Port {
        error?: { message: string };

        /**
         * https://git.io/fjmzb
         * addListener cb `() => void` is wrong
         */
        onMessage: browser.events.Event;
    }

    function connect(connectInfo: {
            name?: string
          , includeTlsChannelId?: boolean
        }): browser.runtime.Port;
}