feat: show only search results for current language

Author: Naramsim

2021/docs/scripts/extra.js

@@ -0,0 +1,40 @@
+window.addEventListener("DOMContentLoaded", _ => {
+    const MutationObserver = window.MutationObserver || window.WebKitMutationObserver;
+    const observer = new MutationObserver((mutations, _) => {
+        const nodesForRemoval = [];
+        for (const record of mutations) {
+            for (const liNode of record.addedNodes) {
+                let removeNode = false;
+                for (const anchor of liNode.querySelectorAll("a")) {
+                    const searchResultLocale = getSearchResultLocaleFromAnchor(anchor);
+                    const isSearchResultFromCurrentPageLocale = searchResultLocale === document.querySelector('html[lang]').lang;
+                    if (!isSearchResultFromCurrentPageLocale) {
+                        removeNode = true;
+                        continue;
+                    }
+                }
+
+                if (removeNode) {
+                    nodesForRemoval.push(liNode);
+                }
+            }
+        }
+
+        for (const node of nodesForRemoval) {
+            node.remove();
+        }
+
+        const amountDisplay = document.querySelector(".md-search-result__meta");
+        const result = document.querySelector('.md-search-result__list').childNodes.length
+        amountDisplay.textContent = amountDisplay.textContent.replace(/\d+/i, result.toString());
+    });
+
+    observer.observe(document.querySelector(".md-search-result__list"), { childList: true });
+});
+
+function getSearchResultLocaleFromAnchor(anchor) {
+    const localeSegment = anchor.href.split("/")[3];
+    // Note that we make an assumption here that the only length 2
+    // link segments will be the locale immediately after the site's base URL.
+    return (localeSegment.length === 2 || localeSegment.length === 5 || localeSegment.length === 7) ? localeSegment : 'en';
+}

2021/mkdocs.yml

@@ -38,6 +38,9 @@ theme:
 extra_css:
   - stylesheets/extra.css
 
+extra_javascript:
+  - scripts/extra.js
+
 markdown_extensions:
   - abbr
   - attr_list