import { EventEmitter } from '../../stencil-public-runtime';
import type { NavChromeStyle } from '../../shell/nav-chrome';
import type { BarNavTab } from './bar-nav-types';
export declare class BarNav {
    /** Style slot: `dashboard` or `settings`. Colors match for now. */
    navStyle: NavChromeStyle;
    el: HTMLElement;
    /**
     * Tab items for the left section.
     * Set via JS property: `el.tabs = [...]`. Replace the array reference to update.
     */
    tabs: BarNavTab[];
    /** ID of the currently active tab. Overridden when `currentUrl` + `basePath` are set. */
    value: string;
    /**
     * Fallback heading shown when no tabs are provided.
     * When tabs are present the heading is hidden.
     */
    heading: string | undefined;
    /** Section base path (e.g. `/dashboard/safety`). Used with `currentUrl` to derive `value`. */
    basePath: string;
    /** Current route URL. When set with `basePath`, the active tab is derived automatically. */
    currentUrl: string;
    moreTabsLabel: string;
    /** Emitted when the active tab changes. Detail = tab id. */
    dsTabChange: EventEmitter<string>;
    private resolvedTabs;
    private urlDerivedValue;
    private hideTabsForDetailRoute;
    private tabsCollapsed;
    private menuOpen;
    private menuTriggerActive;
    /** When false, defer showing expanded tabs or the collapsed trigger until intrinsic width is measured (avoids a one-frame flash of the full tab row on narrow viewports). */
    private tabLayoutCommitted;
    private visibleTabs;
    private overflowTabs;
    private menuInitialFocusVisible;
    private overflowRovingFocused;
    private focusedTabId;
    private static readonly HOST_PROP_SYNC_BUDGET;
    private static readonly INTRINSIC_WIDTH_RETRY_MAX;
    private static readonly TAB_LAYOUT_COMMIT_MAX_FRAMES;
    private static readonly OVERFLOW_HYSTERESIS_PX;
    private headerEl;
    private triggerEl;
    private menuEl;
    private visibleTabListEl;
    private probeTabListEl;
    private resizeObserver;
    private intrinsicWidthRetryCount;
    private tabLayoutPendingFrames;
    private readonly panelNavTransition;
    private readonly panelToolsTransition;
    private readonly overflowCoalescer;
    private chromeTransitionShell;
    /** Matches `basePath` once tabs + URL are reconciled for the active section. */
    private committedSection;
    /** Section waiting for URL + tabs to catch up after a cross-area navigation. */
    private pendingSection;
    private get effectiveValue();
    private get renderedSelectableTabs();
    private get hasOverflowTabs();
    private syncFocusedTabId;
    private digestTabsConfig;
    private resetTabOverflowLayout;
    onHostPropsChange(): void;
    onSelectionChange(): void;
    onMenuOpenChange(open: boolean): void;
    onTabsCollapsedChange(collapsed: boolean, prevCollapsed: boolean | undefined): void;
    componentWillLoad(): void;
    componentDidLoad(): void;
    componentDidRender(): void;
    disconnectedCallback(): void;
    private bindChromeTransitionListeners;
    private unbindChromeTransitionListeners;
    private onChromeTransitionStart;
    private chromeOverflowPaused;
    private onChromeTransitionEnd;
    /** Re-resolve props assigned by the host after componentWillLoad (Angular ngAfterViewInit). */
    private syncHostPropsIfNeeded;
    /** Poll across animation frames — host props may land without triggering @Watch. */
    private scheduleDeferredHostPropSync;
    private setupOverflowObserver;
    private scheduleOverflowCheck;
    /** Width available for the tab row or collapsed trigger. */
    private getLeftZoneAvailableWidth;
    private getTabsIntrinsicWidth;
    private getHeaderGap;
    private getOverflowTriggerReserveWidth;
    private getProbeTabMetrics;
    private setOverflowTabLayout;
    private scheduleIntrinsicWidthRetry;
    private forceTabLayoutCommit;
    private updateTabsCollapsed;
    private syncMenuAnchor;
    private handleMenuSelect;
    private handleMenuClose;
    private handleMenuAfterClose;
    /** Batch tabs/basePath/currentUrl updates so URL derivation never runs with a mixed section. */
    private incomingTabs;
    private applyHostProps;
    private syncMenuSections;
    private syncValueFromUrl;
    private selectTab;
    /** Move focus to the selected tab in the visible tab group (after expand). */
    private focusVisibleSelectedTab;
    private focusVisibleTab;
    private focusLastVisibleTab;
    private findEnabledVisibleTab;
    private handleTabKeyDown;
    private toggleTabMenu;
    private handleOverflowFocus;
    private handleOverflowBlur;
    private handleTriggerKeyDown;
    private renderTabList;
    render(): any;
}
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