import type { InternalNodeBase, NodeLookup, XYPosition } from '@xyflow/system';
import type { FlowProps, InternalFlowStore, NodeBase, EdgeBase } from './types.ts';
/**
 * Clamp a child node's drag position so the node's rect stays inside
 * its parent's rect — implements xyflow's `extent: 'parent'` contract
 * for the pointer-paced single-node drag handler.
 *
 * Operates on the **relative** coordinate the parent-relative model
 * stores in `userNode.position`: the constraint per axis is
 * `0 ≤ pos ≤ parentSize − childSize`. Returns the input unchanged when
 * the node has no `parentId`, isn't `extent: 'parent'`, the parent is
 * missing, or either node is unmeasured.
 *
 * Exposed (non-default-export) so the same primitive can be reused if
 * the C4 XYDrag integration replaces the inline drag handler — the
 * extent contract remains the same.
 */
export declare function clampDragPositionToParent(position: XYPosition, nodeId: string, lookup: NodeLookup<InternalNodeBase<NodeBase>>): XYPosition;
/**
 * Attach all pointer-paced + ResizeObserver-based subsystems to the
 * outer `<div class="bf-flow">` rendered by the JSX `<Flow>` component.
 *
 * Inside a reactive root (`createRoot`), this also registers
 * `onCleanup` callbacks for the panZoom destroy / ResizeObserver
 * disconnect / keyboard listener removal lifecycle.
 */
export declare function attachFlowSubsystems<NodeType extends NodeBase = NodeBase, EdgeType extends EdgeBase = EdgeBase>(el: HTMLElement, store: InternalFlowStore<NodeType, EdgeType>, props: FlowProps<NodeType, EdgeType>): void;
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