import { Editor, EditorServices } from './editor';
/**
 * Creates a editor that proxies to a member of a collection of editors based on the state of a service.
 *
 * @param sourceServiceKey
 *   The service used to determine the current editor.
 * @param shouldChangeToEditorWithService
 *   The service predicate used to determine the current editor, analogous to the predicate for Array#find().
 * @param shouldFallbackToDefault
 *   Determines what happens when shouldChangeToEditorWithService returns falsy for all editors. If falsy,
 *   keeps the current editor unchanged i.e. remembers the last current editor. If truthy, switches to the
 *   default editor.
 * @param defaultEditor
 *   The editor to use when shouldChangeToEditorWithService returns falsy for all editors, initially and on
 *   subsequent service changes if shouldFallbackToDefault is truthy.
 * @param additionalEditors
 *   The editors in the collection in addition to the default. The order is significant, because when
 *   shouldChangeToEditorWithService return truthy for multiple editors, the first one will be used.
 */
export declare function createChangingEditor<T extends Editor<S>, K extends keyof S, S extends EditorServices = T extends Editor<infer TS> ? TS : never>(sourceServiceKey: K, shouldChangeToEditorWithService: (service: S[K]) => boolean, shouldFallbackToDefault: boolean, defaultEditor: T, ...additionalEditors: T[]): T;