46 lines
1.4 KiB
TypeScript
46 lines
1.4 KiB
TypeScript
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import { useEffect } from "react";
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import { memoize } from "../tools/memoize";
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import { fallbackLanguageTag } from "../i18n";
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import { useConst } from "../tools/useConst";
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import { useConstCallback } from "../tools/useConstCallback";
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import { assert } from "tsafe/assert";
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export type KcContextLike = {
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pageId: KcContextBase["pageId"];
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locale?: {
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currentLanguageTag: string;
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};
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};
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assert<KcContextBase extends KcContextLike ? true : false>();
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/** Allow to avoid bundling the terms and download it on demand*/
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export function useDownloadTerms(params: {
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kcContext: KcContextLike;
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downloadTermMarkdown: (params: { currentLanguageTag: string }) => Promise<string>;
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}) {
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const { kcContext } = params;
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const { downloadTermMarkdownMemoized } = (function useClosure() {
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const { downloadTermMarkdown } = params;
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const downloadTermMarkdownConst = useConstCallback(downloadTermMarkdown);
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const downloadTermMarkdownMemoized = useConst(() =>
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memoize((currentLanguageTag: string) => downloadTermMarkdownConst({ currentLanguageTag }))
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);
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return { downloadTermMarkdownMemoized };
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})();
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useEffect(() => {
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if (kcContext.pageId !== "terms.ftl") {
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return;
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}
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downloadTermMarkdownMemoized(kcContext.locale?.currentLanguageTag ?? fallbackLanguageTag).then(
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thermMarkdown => (evtTermMarkdown.state = thermMarkdown)
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);
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}, []);
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}
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