import { PrintSettings, ToolbarTabId, ViewerOptionPrimitive, ViewerOptions, ViewerOptionsGroupId, ViewerOptionsStoreInit, ViewerPreferences } from 'pptx-viewer-shared';
/**
 * ViewerOptionsState: the runes wrapper around the shared File > Options
 * store. Owns the reactive `options` snapshot (updated via the store's
 * subscribe callback, persisted by the store to the shared
 * `pptx-viewer-prefs` localStorage entry) plus the derived behavior values
 * the viewer wires: history depth, ribbon visibility, print defaults,
 * screen tips, root classes, trust gates, and feedback sounds.
 */
export declare class ViewerOptionsState {
    #private;
    /** Reactive File > Options snapshot; a new object per change. */
    options: ViewerOptions;
    constructor(init?: ViewerOptionsStoreInit);
    /** The legacy six-toggle projection of the current options. */
    get preferences(): ViewerPreferences;
    /** Undo depth for the editor history (Advanced > maximum undos). */
    get historyDepth(): number;
    /** Ribbon tabs unticked in Customize Ribbon (File never hides). */
    get hiddenRibbonTabIds(): readonly ToolbarTabId[];
    /** Print dialog seed, or undefined for "use most recent settings". */
    get printDefaults(): Partial<PrintSettings> | undefined;
    /** Viewer-root CSS classes reflecting display-affecting options. */
    get rootClasses(): string[];
    setValue(group: ViewerOptionsGroupId, key: string, value: ViewerOptionPrimitive): void;
    /** Restore a snapshot wholesale (the dialog's Cancel semantics). */
    restore(snapshot: ViewerOptions): void;
    setRibbonTabHidden(tabId: ToolbarTabId, hidden: boolean): void;
    setQuickAccessCommands(commandIds: readonly string[]): void;
    reset(group?: ViewerOptionsGroupId): void;
    /**
     * Push the legacy preference toggles (ribbon View tab, title-bar autosave)
     * back into the options model. Only writes when a value actually differs,
     * so the bidirectional sync with `preferences` cannot loop.
     */
    applyPreferences(prefs: ViewerPreferences): void;
    /** Tooltip text under the current ScreenTip style, or undefined for none. */
    screenTip(label: string, description?: string, shortcut?: string): string | undefined;
    /**
     * Trust Center gate for following an external hyperlink. Returns true when
     * navigation may proceed (gate off, non-http(s) target, or confirmed).
     */
    confirmHyperlink(href: string, message: string): boolean;
    /** Accessibility > "feedback with sound" cue for a completed action. */
    playFeedback(): void;
    /**
     * Options > Save > "Save AutoRecover information every N minutes", in
     * seconds. The autosave cadence whenever the host passed no explicit
     * `autosaveIntervalMs`; the host-vs-user precedence itself is decided by
     * `resolveAutosaveIntervalMs` in shared, not re-invented here.
     */
    get autosaveIntervalSeconds(): number;
    /** Options > Save > "Delete cached files": drop all recovery snapshots. */
    clearCache(): Promise<void>;
    dispose(): void;
}
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