/********************************************************************************
 * Copyright (c) 2023-2024 EclipseSource and others.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the Eclipse
 * Public License v. 2.0 are satisfied: GNU General Public License, version 2
 * with the GNU Classpath Exception which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 ********************************************************************************/
import { ActionMessage, ClientState, Deferred, Disposable, DisposableCollection, DisposeClientSessionParameters, GLSPClient, InitializeClientSessionParameters, InitializeParameters, InitializeResult } from '@eclipse-glsp/protocol';
import * as vscode from 'vscode';
import { Messenger } from 'vscode-messenger';
import { MessageParticipant, NotificationType, RequestType } from 'vscode-messenger-common';
import { GLSPDiagramIdentifier } from '../types';
export interface WebviewEndpointOptions {
    webviewPanel: vscode.WebviewPanel;
    messenger?: Messenger;
    diagramIdentifier: GLSPDiagramIdentifier;
}
export declare const WebviewReadyNotification: NotificationType<void>;
export declare const InitializeNotification: NotificationType<GLSPDiagramIdentifier>;
export declare const ActionMessageNotification: NotificationType<ActionMessage>;
export declare const ClientStateChangeNotification: NotificationType<ClientState>;
export declare const StartRequest: RequestType<undefined, void>;
export declare const InitializeServerRequest: RequestType<InitializeParameters, InitializeResult>;
export declare const InitializeClientSessionRequest: RequestType<InitializeClientSessionParameters, void>;
export declare const DisposeClientSessionRequest: RequestType<DisposeClientSessionParameters, void>;
export declare const ShutdownServerNotification: NotificationType<void>;
export declare const StopRequest: RequestType<undefined, void>;
/**
 * Wrapper  class around a {@link vscode.WebviewPanel}. Takes care
 * of the communication between the webview and the host extension.
 * It's main responsibility is sending {@link ActionMessages} to the webview
 * and handling of action messages received from the webview.
 */
export declare class WebviewEndpoint implements Disposable {
    readonly webviewPanel: vscode.WebviewPanel;
    readonly messenger: Messenger;
    readonly messageParticipant: MessageParticipant;
    readonly diagramIdentifier: GLSPDiagramIdentifier;
    protected _readyDeferred: Deferred<void>;
    protected toDispose: DisposableCollection;
    protected onActionMessageEmitter: vscode.EventEmitter<ActionMessage<import("@eclipse-glsp/protocol").Action>>;
    get onActionMessage(): vscode.Event<ActionMessage>;
    protected _serverActions?: string[];
    get serverActions(): string[] | undefined;
    protected _clientActions?: string[];
    get clientActions(): string[] | undefined;
    constructor(options: WebviewEndpointOptions);
    protected sendDiagramIdentifier(): Promise<void>;
    /**
     * Hooks up a {@link GLSPClient} with the underlying webview and send the `initialize` message to the webview
     * (once its ready)
     * The GLSP client is called remotely from the webview context via the `vscode-messenger` RPC
     * protocol.
     * @param glspClient The client that should be connected
     * @returns A {@link Disposable} to dispose the remote connection and all attached listeners
     */
    initialize(glspClient: GLSPClient): Disposable;
    sendMessage(actionMessage: ActionMessage): void;
    get ready(): Promise<void>;
    dispose(): void;
}
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