import type { WorkspaceApplicationPreparer, WorkspaceApplicationRun, WorkspaceRunViewport, WorkspaceApplicationSurface, WorkspaceCamera, WorkspaceDesignPick, WorkspaceMode, WorkspaceRunRequest, WorkspaceSnapshot, WorkspaceTarget, WorkspaceViewExploration } from './contracts.js';
/** Runtime-scoped navigation with independent design and application contexts. */
export declare class WorkspaceController {
    private value;
    private listeners;
    private designContexts;
    private runSequence;
    /** Owns both pending preparation and the lifetime of its ready surface. */
    private activeRunController;
    private cancellingPreparation;
    private disposed;
    constructor(initialMode?: 'view' | 'edit');
    getSnapshot: () => WorkspaceSnapshot;
    subscribe: (listener: () => void) => (() => void);
    private update;
    selectView(target: WorkspaceTarget): void;
    initializeViewSelection(target: WorkspaceTarget): boolean;
    clearViewSelection(): void;
    setViewExploration(patch: Partial<WorkspaceViewExploration>): void;
    edit(target?: WorkspaceTarget | null, pick?: WorkspaceDesignPick): void;
    setMode(mode: Exclude<WorkspaceMode, 'application'>): void;
    setSelection(selection: readonly string[]): void;
    setDesignPage(pageId: string, currentPageId?: string): void;
    setCamera(mode: 'view' | 'edit', next: WorkspaceCamera): void;
    beginApplication(request: WorkspaceRunRequest): number;
    beginPrototype(request: Omit<WorkspaceRunRequest, 'kind'>, prototype: NonNullable<WorkspaceApplicationRun['prototype']>): number;
    private startApplication;
    completeApplication(id: number, surface: WorkspaceApplicationSurface): boolean;
    failApplication(id: number, error: string): boolean;
    invalidateApplication(id: number, error: string): boolean;
    prepareApplication(request: WorkspaceRunRequest, prepare: WorkspaceApplicationPreparer): Promise<boolean>;
    /** Resizing the executed surface is view state; it never restarts or re-prepares the run. */
    setApplicationViewport(id: number, viewport: WorkspaceRunViewport | undefined): boolean;
    navigateApplication(id: number, location: string): boolean;
    backApplication(): boolean;
    returnFromApplication(): void;
    private cancelPreparation;
    private abortRunController;
    dispose(): void;
}