/**
 * Tab-group body rendering under DOM-panel keepalive: `renderActiveBody` (the
 * body region) + `NativeSlot` (the anchor for an active native panel).
 */
import { type ReactNode } from 'react';
import type { TabGroupNode } from '../layout/index.js';
import type { RenderContext } from './dock-view.js';
/**
 * Render a tab group's body region under DOM-panel KEEPALIVE.
 *
 * - DOM panels: ALL of the group's DOM panels are mounted SIMULTANEOUSLY, each
 *   under a STABLE React key (`dom-${panelId}`) so switching the active tab never
 *   remounts a body — React state + scroll persist across A→B→A. The active body
 *   fills the region (flex:1); inactive ones stay in the DOM but `display:none`.
 *   Each body's host renderer receives `{ active }` and is re-invoked with the
 *   new flag on every activation change (no remount), so a host can fire
 *   on-activation side effects off the false→true edge.
 * - Native panels: EXEMPT from keepalive. The single ACTIVE native panel mounts a
 *   `NativeSlot` (keyed on the active id, so deactivation unmounts it and fires
 *   `bindNativeSlot(id, null)`); inactive native panels render nothing. Keeping a
 *   bound native slot mounted-but-hidden would collapse its WebContentsView rect.
 */
export declare function renderActiveBody(node: TabGroupNode, ctx: RenderContext): ReactNode;
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