import type { WorkDocumentNode } from './work-types';
export declare const DOCUMENT_WINDOW_BLOCK_SIZE = 128;
export declare const DOCUMENT_WINDOW_BLOCK_THRESHOLD = 2048;
export declare const DOCUMENT_TABLE_WINDOW_ROW_SIZE = 16;
export declare const DOCUMENT_TABLE_WINDOW_ROW_THRESHOLD = 512;
export interface DocumentWindowingOptions {
    blockSize: number;
    blockThreshold: number;
    tableRowSize: number;
    tableRowThreshold: number;
    trustedIntegrityFeatures?: number;
}
/**
 * Adds stable semantic chunks to large section bodies. The complete
 * ProseMirror model remains in memory, while the chunk node view can omit
 * descendants outside the visible viewport without changing positions.
 */
export declare function windowDocumentModel(root: WorkDocumentNode, requested?: Partial<DocumentWindowingOptions>): WorkDocumentNode;
/** Restores the canonical schema used by controlled HTML and DOCX export. */
export declare function materializeWindowedDocumentModel(root: WorkDocumentNode): WorkDocumentNode;
export declare function documentModelUsesWindowing(root: WorkDocumentNode): boolean;
export declare function estimateDocumentNodeHeight(node: WorkDocumentNode): number;
export declare function estimateDocumentTableRowHeight(row: WorkDocumentNode): number;