import type { EditorComponent, TUI } from "@catui/tui";
/** Host capabilities needed by the external-editor controller. */
export interface ExternalEditorContext {
    readonly editor: EditorComponent;
    readonly ui: TUI;
    showWarning(warningMessage: string): void;
}
export declare class ExternalEditorController {
    private readonly ctx;
    constructor(ctx: ExternalEditorContext);
    openExternalEditor(): void;
    openExistingFileInExternalEditor(filePath: string): Promise<boolean>;
}