/**
 * Inline `::resource` embeds that span the page (#535): a resource placed
 * `here` with `span: 'page'` is set across the page where its directive
 * stands, the way a page-span box is: the text columns above it close level
 * and the flow goes on in the band below. The build wraps each such
 * directive in a frameless page-span box (a synthetic `:::callout` with the
 * {@link SPAN_EMBED_STYLE_ID} style), so the span-block machinery — level
 * cuts, band caps, moves to the next page — places it. On a one-column
 * page the box falls back to the flow, at the full measure the embed took
 * already. A page-wide comic strip set `here` (`:::strip{span=page}`,
 * #590) is boxed the same way; on a one-column page the build sets it in
 * the flow as any strip, its box ignored.
 */
import type { ContentBlock } from '../parse/index.js';
import type { CalloutStyleConfig, Resource, ResourceType } from '../types.js';
/** Style id of the frameless box that carries a page-span embed. Not a
 *  user style: no configuration can name it. */
export declare const SPAN_EMBED_STYLE_ID = "__postext-span-embed";
/** The box: no frame, padding, title or icon, never split or floated; the
 *  gap of an inline resource (`gapPx`, a body line) above it, and below it
 *  unless `layout.inlineResourceGap` is `'above'` (`gapBelow`). */
export declare function spanEmbedStyle(gapPx: number, gapBelow: boolean): CalloutStyleConfig;
/** Whether `block` is a comic strip set across the page where it is
 *  written (`:::strip{span=page}`, placed `here`). */
export declare function isPageSpanStrip(block: ContentBlock | undefined): boolean;
/**
 * `blocks` with every page-span inline embed wrapped in a synthetic
 * page-span box. An embed inside a box keeps to it (the box's own span
 * decides). `wrapped` tells whether any was: the build then adds the
 * box's style to the callout styles. The same blocks come back when none
 * is wrapped.
 */
export declare function wrapPageSpanEmbeds(blocks: readonly ContentBlock[], resources: readonly Resource[], resourceTypes: readonly ResourceType[]): {
    blocks: ContentBlock[];
    wrapped: boolean;
};
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