import { ProctoringSessionOptions } from "../../proctoring/options/ProctoringOptions";
import { AlertCategory, AlertType, ProctoringSession } from "../proctoring/ProctoringSession";
import { IRecorder } from "./IRecorder";
export declare class AlertRecorder implements IRecorder {
    private alerts;
    private startTime;
    private onLostFocusCallback;
    private onFocusCallback;
    private onRealtimeAlertCallback?;
    private optionsProctoring;
    private lastActivityTime;
    private idleCheckInterval;
    private readonly IDLE_THRESHOLD_MS;
    private resizeTimeout;
    constructor(options: {
        onLostFocusCallback: (response: any) => void;
        onFocusCallback: (response: any) => void;
        onRealtimeAlertCallback?: (response: any) => void;
    }, optionsProctoring: ProctoringSessionOptions);
    startRecording(): Promise<void>;
    pauseRecording(): Promise<void>;
    resumeRecording(): Promise<void>;
    stopRecording(): Promise<void>;
    saveOnSession(session: ProctoringSession): Promise<void>;
    private attachListeners;
    private detachListeners;
    private handleVisibilityChange;
    private handleLostFocus;
    private handleReturnFocus;
    private handleResize;
    private handleUserActivity;
    addBackgroundEvent(description: string, category?: AlertCategory): void;
    private handleCopy;
    private handleCut;
    private handlePaste;
    private getRelativeTime;
    private createAlert;
    addAlert({ alert, type }: {
        alert: AlertCategory;
        type: AlertType;
    }): void;
}