/**
 * Shared context for <SvDockLayout> and its recursive <DockNodeView>. Carries
 * the pane-content snippet and the handful of callbacks the tree view needs, so
 * the recursive renderer reaches them without prop-drilling through every level.
 */
import type { Snippet } from 'svelte';
import type { DockPane, DockTabs, DockZone } from './dock-model';
export type DockContext = {
    /** Renders a pane's content. Called as `{@render pane(dockPane)}`. */
    pane: Snippet<[DockPane]>;
    /**
     * Optional stack-header controls for a leaf (maximize / auto-hide / pop-out /
     * float), rendered once per leaf at the right of its tab strip.
     */
    leafActions?: Snippet<[DockTabs]>;
    /** Make tab `index` active in the given leaf. */
    activate: (tabsId: string, index: number) => void;
    /** Close (remove) a pane. */
    close: (paneId: string) => void;
    /** Start dragging a pane's tab to re-dock it. */
    beginDrag: (event: PointerEvent, paneId: string, tabsId: string) => void;
    /** Commit new size weights for a group after a splitter drag. */
    resize: (groupId: string, sizes: number[]) => void;
    /** Minimum pane size (px) along the split axis. */
    minSize: () => number;
    /**
     * The leaf the pointer is over while dragging, for the dock guide. `zone` is
     * the guide chip under the pointer (drop docks there) or `null` (over the leaf
     * but off the guide - the drop will float). `centerOnly` shows just the centre
     * chip (floating windows accept tabs only).
     */
    dropTarget: () => {
        tabsId: string;
        zone: DockZone | null;
        centerOnly?: boolean;
    } | null;
    /** The live tab-reorder target, for the insertion-line indicator. */
    reorderTarget?: () => {
        tabsId: string;
        index: number;
    } | null;
    /** Which side of each leaf the tab strip sits on. Default `'top'`. */
    headerPosition?: () => 'top' | 'bottom' | 'left' | 'right';
    /** The id of the currently focused leaf, for the active-panel highlight. */
    focusedLeaf?: () => string | null;
    /** Keep inactive tabs mounted (hidden) so their content state persists. */
    keepAlive?: () => boolean;
    /** For a single-pane leaf, suppress the redundant tab button (e.g. an auto-hide fly-out,
     *  where the edge strip already names the panel). Leaf actions still render. */
    hideSingleTab?: () => boolean;
};
export declare const DOCK_CONTEXT: unique symbol;