import type { ComponentPublicInstance, TeleportProps } from 'vue';
import type { QrScannerProps } from './QrScanner';
export declare type QrScannerFormat = 'QRCode' | 'Code128' | 'Code39' | 'EAN13' | 'EAN8' | 'DataMatrix' | 'PDF417' | 'Aztec';
export declare type QrScannerResult = {
    text: string;
    format: string;
    source: 'camera' | 'image' | 'native';
};
export declare type QrScannerStartupStage = 'camera' | 'preview' | 'decoder' | 'ready';
export declare type QrScannerStartupTexts = Partial<Record<Exclude<QrScannerStartupStage, 'ready'>, string>>;
export declare type QrScannerStageChange = {
    stage: QrScannerStartupStage;
    /** Milliseconds since this H5 startup attempt began. */
    elapsedMs: number;
};
export declare type QrScannerErrorCode = 'INSECURE_CONTEXT' | 'CAMERA_UNSUPPORTED' | 'CAMERA_PERMISSION_DENIED' | 'CAMERA_NOT_FOUND' | 'CAMERA_UNAVAILABLE' | 'PREVIEW_FAILED' | 'STARTUP_TIMEOUT' | 'DECODER_LOAD_FAILED' | 'DECODE_FAILED' | 'IMAGE_TOO_LARGE' | 'IMAGE_NOT_FOUND' | 'CONFIRM_FAILED' | 'NATIVE_SCAN_FAILED' | 'TORCH_UNAVAILABLE';
export declare type QrScannerError = {
    code: QrScannerErrorCode;
    message: string;
    cause?: unknown;
    stage?: QrScannerStartupStage;
    elapsedMs?: number;
};
export declare type QrScannerBeforeConfirm = (result: QrScannerResult) => boolean | void | Promise<boolean | void>;
export declare type QrScannerNativeScan = (options: {
    formats: QrScannerFormat[];
    signal: AbortSignal;
}) => Promise<{
    text: string;
    format?: string;
} | null>;
export declare type QrScannerOptions = {
    title?: string;
    tip?: string;
    processingText?: string;
    startupTimeout?: number | string;
    startupTexts?: QrScannerStartupTexts;
    formats?: QrScannerFormat[];
    facingMode?: 'environment' | 'user';
    showAlbum?: boolean;
    showTorch?: boolean;
    showSwitchCamera?: boolean;
    closeAfterScan?: boolean;
    scanInterval?: number | string;
    duplicateInterval?: number | string;
    maxImageSize?: number | string;
    paused?: boolean;
    wasmUrl?: string;
    beforeConfirm?: QrScannerBeforeConfirm;
    nativeScan?: QrScannerNativeScan;
    teleport?: TeleportProps['to'];
    zIndex?: number | string;
    closeOnPopstate?: boolean;
    onScan?: (result: QrScannerResult) => void;
    onError?: (error: QrScannerError) => void;
    onStageChange?: (info: QrScannerStageChange) => void;
    onReady?: (info: {
        torch: boolean;
    }) => void;
    onCancel?: () => void;
    onClose?: () => void;
};
export declare type QrScannerExpose = {
    start: () => Promise<void>;
    stop: () => void;
    close: () => void;
    scanImage: (file: File) => Promise<void>;
};
export declare type QrScannerInstance = ComponentPublicInstance<QrScannerProps, QrScannerExpose>;