/** Explains a control that is inert because the editor is in view-only. */
export declare const VIEW_ONLY_REASON = "View only \u2014 switch to Editing to change this.";
export type ImportedRoutePresentation = 'editable-layers' | 'source-preview';
/**
 * Chooses the visible surface for a route whose DOM has already been imported.
 *
 * Imported layers are an editing model, not the source screen itself. View-only
 * therefore keeps the captured source preview on screen whenever one exists;
 * switching to Editing is the explicit hand-off to the reconstructed layers.
 * A missing preview falls back to layers instead of turning the frame blank.
 */
export declare function resolveImportedRoutePresentation({ editMode, sourcePreviewAvailable, }: {
    editMode: boolean;
    sourcePreviewAvailable: boolean;
}): ImportedRoutePresentation;
interface ModeKeyEvent {
    key: string;
    code?: string;
    metaKey?: boolean;
    ctrlKey?: boolean;
    shiftKey?: boolean;
    altKey?: boolean;
}
/**
 * True when this keystroke would change the design and the editor is not in
 * edit mode. Selection, zoom, panning, tool switching and copy are absent
 * from the lists above by design — reading a canvas needs all of them.
 */
export declare function viewOnlyBlocksKey(editMode: boolean, event: ModeKeyEvent): boolean;
export {};