/******************************************************************************
 * Copyright 2021 TypeFox GmbH
 * This program and the accompanying materials are made available under the
 * terms of the MIT License, which is available in the project root.
 ******************************************************************************/
import type { Connection } from 'vscode-languageserver';
import type { ActionMessage } from 'sprotty-protocol';
import type { Location } from 'vscode-languageserver';
import type { LangiumSprottyServices, LangiumSprottySharedServices } from './sprotty-services.js';
import { FitToScreenAction } from 'sprotty-protocol';
import { NotificationType } from 'vscode-languageserver';
/**
 * Notification sent in both directions to transmit actions between server and client.
 */
export declare namespace DiagramActionNotification {
    const type: NotificationType<ActionMessage>;
}
/**
 * Notification sent from the client to indicate that a diagram was closed.
 */
export declare namespace DiagramDidCloseNotification {
    const type: NotificationType<string>;
}
/**
 * Notification sent from the server to open a location in a text editor.
 */
export declare namespace OpenInTextEditorNotification {
    const type: NotificationType<OpenInTextEditorMessage>;
    interface OpenInTextEditorMessage {
        location: Location;
        forceOpen: boolean;
    }
}
/**
 * Adds JSON-RPC handlers for `DiagramActionNotification` and `DiagramDidCloseNotification` received
 * from the client.
 */
export declare function addDiagramHandler(connection: Connection, services: LangiumSprottySharedServices): void;
/**
 * Adds an action handler for selection changes that sends notifications to the language client to open the corresponding
 * source regions in the text editor, if a trace is available.
 */
export declare function addDiagramSelectionHandler(services: LangiumSprottyServices): void;
/**
 * Adds a listener for text position changes that sends actions to the diagram client to select the corresponding
 * target elements in the diagram, if a trace is available.
 */
export declare function addTextSelectionHandler(services: LangiumSprottyServices, options?: {
    fitToScreen?: Partial<FitToScreenAction> | 'none';
}): void;
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