Max
20 lines
1.1 KiB
JavaScript
20 lines
1.1 KiB
JavaScript
// The theme links each language-switcher entry to that language's home page.
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// Point the entries at the current page on each language's site instead: every
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// prose page exists at the same path on all of them. The API reference is
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// English-only, so from there the entries keep pointing at the site roots.
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// Instant navigation swaps the page but keeps the header, so re-run on every
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// page the theme loads (`document$`) rather than once.
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const base = JSON.parse(document.getElementById("__config").textContent).base;
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// The site root as a directory path; `base` lacks the trailing slash on 404 pages.
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const site = new URL(base.replace(/\/?$/, "/"), location).pathname;
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document$.subscribe(() => {
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let page = location.pathname.slice(site.length);
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if (page.startsWith("api/")) page = "";
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for (const entry of document.querySelectorAll(".md-select__link[hreflang]")) {
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// The language root the theme rendered, relative to the page first shown.
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entry.dataset.site ??= new URL(entry.getAttribute("href"), location).pathname;
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entry.href = entry.dataset.site + page;
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}
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});
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