import { IDocumentFactory, IElementLike, INodeLike } from "./DocumentInterface";
import { NetworkedDOMWebsocketAdapter, NetworkedDOMWebsocketOptions } from "./NetworkedDOMWebsocket";
/**
 * Shared state and element management logic for both V01 and V02 websocket adapters.
 *
 * Subclasses handle protocol-specific concerns: message encoding/decoding, event
 * format, hidden element placeholders (V02), and batch mode (V02).
 */
export declare abstract class NetworkedDOMWebsocketAdapterBase implements NetworkedDOMWebsocketAdapter {
    protected readonly websocket: WebSocket;
    protected readonly parentElement: IElementLike;
    protected readonly connectedCallback: () => void;
    protected readonly timeCallback?: ((time: number) => void) | undefined;
    protected readonly options: NetworkedDOMWebsocketOptions;
    protected idToElement: Map<number, INodeLike>;
    protected elementToId: Map<INodeLike, number>;
    protected currentRoot: INodeLike | null;
    protected readonly docFactory: IDocumentFactory;
    protected pendingPortalChildren: Map<IElementLike, INodeLike[]>;
    protected elementFactoryOverride: Map<INodeLike, IDocumentFactory>;
    constructor(websocket: WebSocket, parentElement: IElementLike, connectedCallback: () => void, timeCallback?: ((time: number) => void) | undefined, options?: NetworkedDOMWebsocketOptions, doc?: IDocumentFactory);
    abstract receiveMessage(event: MessageEvent): void;
    abstract handleEvent(element: IElementLike, event: CustomEvent): void;
    clearContents(): boolean;
    /**
     * Creates a text node, registers it in the id maps, and returns it.
     */
    protected createTextNode(nodeId: number, text: string, factory: IDocumentFactory): INodeLike;
    /**
     * Inserts elements into the correct position within a parent, using
     * previousElement/nextElement for positioning. Creates a DocumentFragment
     * when inserting before a reference node.
     */
    protected insertElements(targetForChildren: IElementLike, elementsToAdd: INodeLike[], previousElement: INodeLike | null, nextElement: INodeLike | null, factory: IDocumentFactory): void;
    /**
     * Recursively removes element-to-id mappings for all descendants of a parent.
     * V02 overrides this to also handle hidden placeholder elements.
     */
    protected removeChildElementIds(parent: INodeLike): void;
    /**
     * Called during removeChildElementIds when a child has no registered id.
     * V01 logs an error. V02 overrides to check for placeholder elements.
     */
    protected handleUnregisteredChild(child: INodeLike): void;
    /**
     * Resets state and applies a snapshot element to the parent.
     * Appending to the tree triggers MElement connectedCallbacks (which set up portals),
     * then pending portal children are flushed.
     */
    protected resetAndApplySnapshot(element: INodeLike): void;
}
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