ff342ca705
After a merge decideEmbedState became the canonical guard and inlines the cycle/too-deep logic, leaving these predicates called only by their own tests. Remove them (and their test blocks); keep PAGE_EMBED_MAX_DEPTH (used by decideEmbedState). Production behavior stays covered by decide-embed-state.test.ts. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
54 lines
1.5 KiB
TypeScript
54 lines
1.5 KiB
TypeScript
import React, { createContext, useContext, useMemo } from "react";
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/** Hard cap on nesting depth for whole-page embeds (cycle/runaway guard). */
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export const PAGE_EMBED_MAX_DEPTH = 5;
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type AncestryValue = {
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/** sourcePageIds of every ancestor pageEmbed up the render tree. */
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chain: string[];
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/** Includes the host page id so a top-level self-embed is also caught. */
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hostPageId: string | null;
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};
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const PageEmbedAncestryContext = createContext<AncestryValue>({
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chain: [],
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hostPageId: null,
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});
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/**
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* Carries the ancestor `sourcePageId` chain down the nested read-only editors.
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* The node view reads it to detect cycles (current id already in the chain) and
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* to enforce a hard depth limit before mounting a deeper nested editor.
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*/
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export function PageEmbedAncestryProvider({
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sourcePageId,
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hostPageId,
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children,
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}: {
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sourcePageId?: string | null;
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hostPageId?: string | null;
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children: React.ReactNode;
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}) {
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const parent = useContext(PageEmbedAncestryContext);
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const value = useMemo<AncestryValue>(() => {
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const nextHost = parent.hostPageId ?? hostPageId ?? null;
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if (!sourcePageId) {
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return { chain: parent.chain, hostPageId: nextHost };
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}
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return {
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chain: [...parent.chain, sourcePageId],
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hostPageId: nextHost,
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};
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}, [parent, sourcePageId, hostPageId]);
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return (
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<PageEmbedAncestryContext.Provider value={value}>
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{children}
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</PageEmbedAncestryContext.Provider>
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);
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}
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export function usePageEmbedAncestry() {
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return useContext(PageEmbedAncestryContext);
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}
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