import { IMAGE_MIME_TYPES, MIME_TYPES } from "@excalidraw/common";
import type { ValueOf } from "@excalidraw/common/utility-types";
import type { ExcalidrawElement, FileId } from "@excalidraw/element/types";
import type { AppState, CompressImageFile, DataURL } from "../types";
export declare const getMimeType: (blob: Blob | string) => string;
export declare const getFileHandleType: (handle: FileSystemFileHandle | null) => string | null;
export declare const isImageFileHandleType: (type: string | null) => type is "png" | "svg" | "gif";
export declare const isImageFileHandle: (handle: FileSystemFileHandle | null) => handle is FileSystemFileHandle;
export declare const isSupportedImageFileType: (type: string | null | undefined) => boolean;
export declare const isSupportedImageFile: (blob: Blob | null | undefined) => blob is Blob & {
    type: ValueOf<typeof IMAGE_MIME_TYPES>;
};
export declare const loadFromBlob: (blob: Blob | File, 
/** @see restore.localAppState */
localAppState: AppState | null, localElements: readonly ExcalidrawElement[] | null, 
/** FileSystemFileHandle. Defaults to `blob.handle` if defined, otherwise null. */
fileHandle?: FileSystemFileHandle | null) => Promise<{
    elements: import("@excalidraw/element/types").OrderedExcalidrawElement[];
    appState: {
        viewBackgroundColor: string;
        theme: import("@excalidraw/element/types").Theme;
        frameRendering: {
            enabled: boolean;
            name: boolean;
            outline: boolean;
            clip: boolean;
        };
        name: string | null;
        zoom: import("../types").Zoom;
        scrollX: number;
        scrollY: number;
        viewpointFlip: import("@excalidraw/common").ViewpointFlip;
        viewModeEnabled: boolean;
        openDialog: null | {
            name: "imageExport" | "help" | "jsonExport";
        } | {
            name: "settings";
        } | {
            name: "elementLinkSelector";
            sourceElementId: ExcalidrawElement["id"];
        } | {
            name: "charts";
            data: import("../charts").Spreadsheet;
            rawText: string;
        };
        editingGroupId: import("@excalidraw/element/types").GroupId | null;
        selectedElementIds: Readonly<{
            [id: string]: true;
        }>;
        frameToHighlight: import("@excalidraw/element/types").NonDeleted<import("@excalidraw/element/types").ExcalidrawFrameLikeElement> | null;
        activeTool: {
            lastActiveTool: import("../types").ActiveTool | null;
            locked: boolean;
            fromSelection: boolean;
        } & import("../types").ActiveTool;
        activeEmbeddable: {
            element: import("@excalidraw/element/types").NonDeletedExcalidrawElement;
            state: "hover" | "active";
        } | null;
        selectionElement: import("@excalidraw/element/types").NonDeletedExcalidrawElement | null;
        selectedGroupIds: {
            [groupId: string]: boolean;
        };
        selectedLinearElement: import("@excalidraw/element").LinearElementEditor | null;
        multiElement: import("@excalidraw/element/types").NonDeleted<import("@excalidraw/element/types").ExcalidrawLinearElement> | null;
        newElement: import("@excalidraw/element/types").NonDeleted<import("@excalidraw/element/types").ExcalidrawNonSelectionElement> | null;
        isBindingEnabled: boolean;
        isMidpointSnappingEnabled: boolean;
        gridModeEnabled: boolean;
        suggestedBinding: {
            element: import("@excalidraw/element/types").NonDeleted<import("@excalidraw/element/types").ExcalidrawBindableElement>;
            midPoint?: import("@excalidraw/math").GlobalPoint;
        } | null;
        hoveredArrowTextAnchor: {
            elementId: import("@excalidraw/element/types").ExcalidrawArrowElement["id"];
            anchor: "start" | "end" | "label";
        } | null;
        isRotating: boolean;
        elementsToHighlight: readonly import("@excalidraw/element/types").NonDeletedExcalidrawElement[] | null;
        collaborators: Map<import("../types").SocketId, import("../types").Collaborator>;
        snapLines: readonly import("../snapping").SnapLine[];
        zenModeEnabled: boolean;
        editingTextElement: import("@excalidraw/element/types").ExcalidrawTextElement | null;
        isCropping: boolean;
        croppingElementId: ExcalidrawElement["id"] | null;
        searchMatches: Readonly<{
            focusedId: ExcalidrawElement["id"] | null;
            matches: readonly import("../types").SearchMatch[];
        }> | null;
        activeLockedId: string | null;
        hoveredElementIds: Readonly<{
            [id: string]: true;
        }>;
        shouldCacheIgnoreZoom: boolean;
        exportScale: number;
        currentItemArrowType: "sharp" | "round" | "elbow";
        gridSize: number;
        bindMode: import("@excalidraw/element/types").BindMode;
        viewModeOnly: boolean;
        objectsSnapModeEnabled: boolean;
        wheelZoomsOnDefault?: boolean | undefined;
        selectedElementsAreBeingDragged: boolean;
        gridStep: number;
        currentHoveredFontFamily: import("@excalidraw/element/types").FontFamilyValues | null;
        contextMenu: {
            items: import("../components/ContextMenu").ContextMenuItems;
            top: number;
            left: number;
        } | null;
        showWelcomeScreen: boolean;
        isLoading: boolean;
        myocSimplifiedMode: boolean;
        dontResizeLimitMBs: number;
        hideMainMenus: boolean;
        alignConfiguration: {
            stacking: boolean;
        };
        arrangeConfiguration: {
            algorithm: import("@excalidraw/element/types").ArrangeAlgorithms;
            gap: number;
        };
        normaliseConfiguration: {
            mode: import("../types").NormaliseMode;
            metric: import("../types").NormaliseMetric;
        };
        errorMessage: React.ReactNode;
        resizingElement: import("@excalidraw/element/types").NonDeletedExcalidrawElement | null;
        boxSelectionMode: import("../types").BoxSelectionMode;
        bindingPreference: "enabled" | "disabled";
        editingFrame: import("@excalidraw/element/types").ExcalidrawFrameLikeElement["id"] | null;
        preferredSelectionTool: {
            type: "selection" | "lasso";
            initialized: boolean;
        };
        penMode: boolean;
        penDetected: boolean;
        exportBackground: boolean;
        exportEmbedScene: boolean;
        exportWithDarkMode: boolean;
        currentItemStrokeColor: string;
        currentItemBackgroundColor: string;
        currentItemFillStyle: ExcalidrawElement["fillStyle"];
        currentItemStrokeWidthKey: import("@excalidraw/common").StrokeWidthKey;
        currentItemStrokeStyle: ExcalidrawElement["strokeStyle"];
        currentItemRoughness: number;
        currentItemStrokeVariability: import("@excalidraw/element/types").StrokeVariability;
        currentItemOpacity: number;
        currentItemFontFamily: import("@excalidraw/element/types").FontFamilyValues;
        currentItemFontSize: number;
        currentItemTextAlign: import("@excalidraw/element/types").TextAlign;
        currentItemStartArrowhead: import("@excalidraw/element/types").Arrowhead | null;
        currentItemEndArrowhead: import("@excalidraw/element/types").Arrowhead | null;
        currentItemRoundness: import("@excalidraw/element/types").StrokeRoundness;
        scrollConstraints: import("../types").ScrollConstraints | null;
        cursorButton: "up" | "down";
        scrolledOutside: boolean;
        isResizing: boolean;
        openMenu: "canvas" | null;
        openPopup: "canvasBackground" | "elementBackground" | "elementStroke" | "fontFamily" | "compactTextProperties" | "compactStrokeStyles" | "compactOtherProperties" | "compactArrowProperties" | "gifFrameGallery" | "gifSpeedPicker" | null;
        openSidebar: {
            name: import("../types").SidebarName;
            tab?: import("../types").SidebarTabName;
        } | null;
        defaultSidebarDockedPreference: boolean;
        lastPointerDownWith: import("@excalidraw/element/types").PointerType;
        previousSelectedElementIds: {
            [id: string]: true;
        };
        toast: {
            message: React.ReactNode;
            closable?: boolean;
            duration?: number;
        } | null;
        fileHandle: FileSystemFileHandle | null;
        stats: {
            open: boolean;
            panels: number;
        };
        showHyperlinkPopup: false | "info" | "editor";
        originSnapOffset: {
            x: number;
            y: number;
        } | null;
        lockedMultiSelections: {
            [groupId: string]: true;
        };
        colorTopPicks: {
            elementStroke: readonly string[] | null;
            elementBackground: readonly string[] | null;
            bucketFill: readonly string[] | null;
        };
    };
    files: import("../types").BinaryFiles;
}>;
export declare const canvasToBlob: (canvas: HTMLCanvasElement | Promise<HTMLCanvasElement>) => Promise<Blob>;
/** generates SHA-1 digest from supplied file (if not supported, falls back
    to a 40-char base64 random id) */
export declare const generateIdFromFile: (file: File) => Promise<FileId>;
/** async. For sync variant, use getDataURL_sync */
export declare const getDataURL: (file: Blob | File) => Promise<DataURL>;
export declare const getDataURL_sync: (data: string | Uint8Array | ArrayBuffer, mimeType: ValueOf<typeof MIME_TYPES>) => DataURL;
export declare const dataURLToFile: (dataURL: DataURL, filename?: string) => File;
export declare const dataURLToString: (dataURL: DataURL) => string;
export declare const resizeImageFile: CompressImageFile;
export declare const SVGStringToFile: (SVGString: string, filename?: string) => File & {
    type: typeof MIME_TYPES.svg;
};
export declare const ImageURLToFile: (imageUrl: string, filename?: string) => Promise<File | undefined>;
export declare const getFileHandle: (event: DragEvent | React.DragEvent | DataTransferItem) => Promise<FileSystemFileHandle | null>;
export declare const createFile: (blob: File | Blob | ArrayBuffer, mimeType: string, name: string | undefined) => File;
/** attempts to detect correct mimeType if none is set, or if an image
 * has an incorrect extension.
 * Note: doesn't handle missing .excalidraw extension  */
export declare const normalizeFile: (file: File) => Promise<File>;
export declare const blobToArrayBuffer: (blob: Blob) => Promise<ArrayBuffer>;