fix(docs): Algolia + Search page (#1349)

2022-04-19 15:23:24 +02:00
1 parent 2e6622ec5d
commit e8cd03640d
@@ -21,6 +21,7 @@
    "@docusaurus/preset-classic": "2.0.0-beta.17",
    "@docusaurus/remark-plugin-npm2yarn": "^2.0.0-beta.18",
    "@svgr/webpack": "6.2.1",
+    "algoliasearch-helper": "^3.8.2",
    "clsx": "^1.1.1",
    "docusaurus2-dotenv": "^1.4.0",
    "file-loader": "^6.2.0",
@@ -0,0 +1,8 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+/// <reference types="react" />
+export default function SearchPage(): JSX.Element;
@@ -0,0 +1,447 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+/* eslint-disable jsx-a11y/no-autofocus */
+import React, {useEffect, useReducer, useRef, useState} from 'react';
+import Translate, {translate} from '@docusaurus/Translate';
+import {
+  isRegexpStringMatch,
+  useDynamicCallback,
+  usePluralForm,
+  useSearchPage,
+  useTitleFormatter,
+} from '@docusaurus/theme-common';
+
+import ExecutionEnvironment from '@docusaurus/ExecutionEnvironment';
+import Head from '@docusaurus/Head';
+import Layout from '@theme/Layout';
+import Link from '@docusaurus/Link';
+import algoliaSearch from 'algoliasearch/lite';
+import algoliaSearchHelper from 'algoliasearch-helper';
+import clsx from 'clsx';
+import styles from './styles.module.css';
+import {useAllDocsData} from '@docusaurus/plugin-content-docs/client';
+import useDocusaurusContext from '@docusaurus/useDocusaurusContext';
+
+// Very simple pluralization: probably good enough for now
+function useDocumentsFoundPlural() {
+  const {selectMessage} = usePluralForm();
+  return (count) =>
+    selectMessage(
+      count,
+      translate(
+        {
+          id: 'theme.SearchPage.documentsFound.plurals',
+          description:
+            'Pluralized label for "{count} documents found". Use as much plural forms (separated by "|") as your language support (see https://www.unicode.org/cldr/cldr-aux/charts/34/supplemental/language_plural_rules.html)',
+          message: 'One document found|{count} documents found',
+        },
+        {count},
+      ),
+    );
+}
+function useDocsSearchVersionsHelpers() {
+  const allDocsData = useAllDocsData();
+  // State of the version select menus / algolia facet filters
+  // docsPluginId -> versionName map
+  const [searchVersions, setSearchVersions] = useState(() =>
+    Object.entries(allDocsData).reduce(
+      (acc, [pluginId, pluginData]) => ({
+        ...acc,
+        [pluginId]: pluginData.versions[0].name,
+      }),
+      {},
+    ),
+  );
+  // Set the value of a single select menu
+  const setSearchVersion = (pluginId, searchVersion) =>
+    setSearchVersions((s) => ({...s, [pluginId]: searchVersion}));
+  const versioningEnabled = Object.values(allDocsData).some(
+    (docsData) => docsData.versions.length > 1,
+  );
+  return {
+    allDocsData,
+    versioningEnabled,
+    searchVersions,
+    setSearchVersion,
+  };
+}
+// We want to display one select per versioned docs plugin instance
+function SearchVersionSelectList({docsSearchVersionsHelpers}) {
+  const versionedPluginEntries = Object.entries(
+    docsSearchVersionsHelpers.allDocsData,
+  )
+    // Do not show a version select for unversioned docs plugin instances
+    .filter(([, docsData]) => docsData.versions.length > 1);
+  return (
+    <div
+      className={clsx(
+        'col',
+        'col--3',
+        'padding-left--none',
+        styles.searchVersionColumn,
+      )}>
+      {versionedPluginEntries.map(([pluginId, docsData]) => {
+        const labelPrefix =
+          versionedPluginEntries.length > 1 ? `${pluginId}: ` : '';
+        return (
+          <select
+            key={pluginId}
+            onChange={(e) =>
+              docsSearchVersionsHelpers.setSearchVersion(
+                pluginId,
+                e.target.value,
+              )
+            }
+            defaultValue={docsSearchVersionsHelpers.searchVersions[pluginId]}
+            className={styles.searchVersionInput}>
+            {docsData.versions.map((version, i) => (
+              <option
+                key={i}
+                label={`${labelPrefix}${version.label}`}
+                value={version.name}
+              />
+            ))}
+          </select>
+        );
+      })}
+    </div>
+  );
+}
+export default function SearchPage() {
+  const {
+    siteConfig: {themeConfig},
+    i18n: {currentLocale},
+  } = useDocusaurusContext();
+  const {
+    algolia: {appId, apiKey, indexName, externalUrlRegex},
+  } = themeConfig;
+  const documentsFoundPlural = useDocumentsFoundPlural();
+  const docsSearchVersionsHelpers = useDocsSearchVersionsHelpers();
+  const {searchQuery, setSearchQuery} = useSearchPage();
+  const initialSearchResultState = {
+    items: [],
+    query: null,
+    totalResults: null,
+    totalPages: null,
+    lastPage: null,
+    hasMore: null,
+    loading: null,
+  };
+  const [searchResultState, searchResultStateDispatcher] = useReducer(
+    (prevState, data) => {
+      switch (data.type) {
+        case 'reset': {
+          return initialSearchResultState;
+        }
+        case 'loading': {
+          return {...prevState, loading: true};
+        }
+        case 'update': {
+          if (searchQuery !== data.value.query) {
+            return prevState;
+          }
+          return {
+            ...data.value,
+            items:
+              data.value.lastPage === 0
+                ? data.value.items
+                : prevState.items.concat(data.value.items),
+          };
+        }
+        case 'advance': {
+          const hasMore = prevState.totalPages > prevState.lastPage + 1;
+          return {
+            ...prevState,
+            lastPage: hasMore ? prevState.lastPage + 1 : prevState.lastPage,
+            hasMore,
+          };
+        }
+        default:
+          return prevState;
+      }
+    },
+    initialSearchResultState,
+  );
+  const algoliaClient = algoliaSearch(appId, apiKey);
+  const algoliaHelper = algoliaSearchHelper(algoliaClient, indexName, {
+    hitsPerPage: 15,
+    advancedSyntax: true,
+    disjunctiveFacets: ['language', 'docusaurus_tag'],
+  });
+  algoliaHelper.on(
+    'result',
+    ({results: {query, hits, page, nbHits, nbPages}}) => {
+      if (query === '' || !(hits instanceof Array)) {
+        searchResultStateDispatcher({type: 'reset'});
+        return;
+      }
+      const sanitizeValue = (value) =>
+        value.replace(
+          /algolia-docsearch-suggestion--highlight/g,
+          'search-result-match',
+        );
+      const items = hits.map(
+        ({
+          url,
+          _highlightResult: {hierarchy},
+          _snippetResult: snippet = {},
+        }) => {
+          const parsedURL = new URL(url);
+          const titles = Object.keys(hierarchy).map((key) =>
+            sanitizeValue(hierarchy[key].value),
+          );
+          return {
+            title: titles.pop(),
+            url: isRegexpStringMatch(externalUrlRegex, parsedURL.href)
+              ? parsedURL.href
+              : parsedURL.pathname + parsedURL.hash,
+            summary: snippet.content
+              ? `${sanitizeValue(snippet.content.value)}...`
+              : '',
+            breadcrumbs: titles,
+          };
+        },
+      );
+      searchResultStateDispatcher({
+        type: 'update',
+        value: {
+          items,
+          query,
+          totalResults: nbHits,
+          totalPages: nbPages,
+          lastPage: page,
+          hasMore: nbPages > page + 1,
+          loading: false,
+        },
+      });
+    },
+  );
+  const [loaderRef, setLoaderRef] = useState(null);
+  const prevY = useRef(0);
+  const observer = useRef(
+    ExecutionEnvironment.canUseDOM &&
+      new IntersectionObserver(
+        (entries) => {
+          const {
+            isIntersecting,
+            boundingClientRect: {y: currentY},
+          } = entries[0];
+          if (isIntersecting && prevY.current > currentY) {
+            searchResultStateDispatcher({type: 'advance'});
+          }
+          prevY.current = currentY;
+        },
+        {threshold: 1},
+      ),
+  );
+  const getTitle = () =>
+    searchQuery
+      ? translate(
+          {
+            id: 'theme.SearchPage.existingResultsTitle',
+            message: 'Search results for "{query}"',
+            description: 'The search page title for non-empty query',
+          },
+          {
+            query: searchQuery,
+          },
+        )
+      : translate({
+          id: 'theme.SearchPage.emptyResultsTitle',
+          message: 'Search the documentation',
+          description: 'The search page title for empty query',
+        });
+  const makeSearch = useDynamicCallback((page = 0) => {
+    algoliaHelper.setQuery(searchQuery).setPage(page).search();
+  });
+  useEffect(() => {
+    if (!loaderRef) {
+      return undefined;
+    }
+    const currentObserver = observer.current;
+    if (currentObserver) {
+      currentObserver.observe(loaderRef);
+      return () => currentObserver.unobserve(loaderRef);
+    }
+    return () => true;
+  }, [loaderRef]);
+  useEffect(() => {
+    searchResultStateDispatcher({type: 'reset'});
+    if (searchQuery) {
+      searchResultStateDispatcher({type: 'loading'});
+      setTimeout(() => {
+        makeSearch();
+      }, 300);
+    }
+  }, [searchQuery, docsSearchVersionsHelpers.searchVersions, makeSearch]);
+  useEffect(() => {
+    if (!searchResultState.lastPage || searchResultState.lastPage === 0) {
+      return;
+    }
+    makeSearch(searchResultState.lastPage);
+  }, [makeSearch, searchResultState.lastPage]);
+  return (
+    <Layout wrapperClassName="search-page-wrapper">
+      <Head>
+        <title>{useTitleFormatter(getTitle())}</title>
+        {/*
+         We should not index search pages
+          See https://github.com/facebook/docusaurus/pull/3233
+        */}
+        <meta property="robots" content="noindex, follow" />
+      </Head>
+
+      <div className="container margin-vert--lg">
+        <h1>{getTitle()}</h1>
+
+        <form className="row" onSubmit={(e) => e.preventDefault()}>
+          <div
+            className={clsx('col', styles.searchQueryColumn, {
+              'col--9': docsSearchVersionsHelpers.versioningEnabled,
+              'col--12': !docsSearchVersionsHelpers.versioningEnabled,
+            })}>
+            <input
+              type="search"
+              name="q"
+              className={styles.searchQueryInput}
+              placeholder={translate({
+                id: 'theme.SearchPage.inputPlaceholder',
+                message: 'Type your search here',
+                description: 'The placeholder for search page input',
+              })}
+              aria-label={translate({
+                id: 'theme.SearchPage.inputLabel',
+                message: 'Search',
+                description: 'The ARIA label for search page input',
+              })}
+              onChange={(e) => setSearchQuery(e.target.value)}
+              value={searchQuery}
+              autoComplete="off"
+              autoFocus
+            />
+          </div>
+
+          {docsSearchVersionsHelpers.versioningEnabled && (
+            <SearchVersionSelectList
+              docsSearchVersionsHelpers={docsSearchVersionsHelpers}
+            />
+          )}
+        </form>
+
+        <div className="row">
+          <div className={clsx('col', 'col--8', styles.searchResultsColumn)}>
+            {!!searchResultState.totalResults &&
+              documentsFoundPlural(searchResultState.totalResults)}
+          </div>
+
+          <div
+            className={clsx(
+              'col',
+              'col--4',
+              'text--right',
+              styles.searchLogoColumn,
+            )}>
+            <a
+              target="_blank"
+              rel="noopener noreferrer"
+              href="https://www.algolia.com/"
+              aria-label={translate({
+                id: 'theme.SearchPage.algoliaLabel',
+                message: 'Search by Algolia',
+                description: 'The ARIA label for Algolia mention',
+              })}>
+              <svg viewBox="0 0 168 24" className={styles.algoliaLogo}>
+                <g fill="none">
+                  <path
+                    className={styles.algoliaLogoPathFill}
+                    d="M120.925 18.804c-4.386.02-4.386-3.54-4.386-4.106l-.007-13.336 2.675-.424v13.254c0 .322 0 2.358 1.718 2.364v2.248zm-10.846-2.18c.821 0 1.43-.047 1.855-.129v-2.719a6.334 6.334 0 0 0-1.574-.199 5.7 5.7 0 0 0-.897.069 2.699 2.699 0 0 0-.814.24c-.24.116-.439.28-.582.491-.15.212-.219.335-.219.656 0 .628.219.991.616 1.23s.938.362 1.615.362zm-.233-9.7c.883 0 1.629.109 2.231.328.602.218 1.088.525 1.444.915.363.396.609.922.76 1.483.157.56.232 1.175.232 1.85v6.874a32.5 32.5 0 0 1-1.868.314c-.834.123-1.772.185-2.813.185-.69 0-1.327-.069-1.895-.198a4.001 4.001 0 0 1-1.471-.636 3.085 3.085 0 0 1-.951-1.134c-.226-.465-.343-1.12-.343-1.803 0-.656.13-1.073.384-1.525a3.24 3.24 0 0 1 1.047-1.106c.445-.287.95-.492 1.532-.615a8.8 8.8 0 0 1 1.82-.185 8.404 8.404 0 0 1 1.972.24v-.438c0-.307-.035-.6-.11-.874a1.88 1.88 0 0 0-.384-.73 1.784 1.784 0 0 0-.724-.493 3.164 3.164 0 0 0-1.143-.205c-.616 0-1.177.075-1.69.164a7.735 7.735 0 0 0-1.26.307l-.321-2.192c.335-.117.834-.233 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0-1.045.116-1.349.35-.303.234-.454.532-.454.894 0 .372.11Line truncated
+                  />
+                  <path
+                    fill="#5468FF"
+                    d="M78.988.938h16.594a2.968 2.968 0 0 1 2.966 2.966V20.5a2.967 2.967 0 0 1-2.966 2.964H78.988a2.967 2.967 0 0 1-2.966-2.964V3.897A2.961 2.961 0 0 1 78.988.938z"
+                  />
+                  <path
+                    fill="white"
+                    d="M89.632 5.967v-.772a.978.978 0 0 0-.978-.977h-2.28a.978.978 0 0 0-.978.977v.793c0 .088.082.15.171.13a7.127 7.127 0 0 1 1.984-.28c.65 0 1.295.088 1.917.259.082.02.164-.04.164-.13m-6.248 1.01l-.39-.389a.977.977 0 0 0-1.382 0l-.465.465a.973.973 0 0 0 0 1.38l.383.383c.062.061.15.047.205-.014.226-.307.472-.601.746-.874.281-.28.568-.526.883-.751.068-.042.075-.137.02-.2m4.16 2.453v3.341c0 .096.104.165.192.117l2.97-1.537c.068-.034.089-.117.055-.184a3.695 3.695 0 0 0-3.08-1.866c-.068 0-.136.054-.136.13m0 8.048a4.489 4.489 0 0 1-4.49-4.482 4.488 4.488 0 0 1 4.49-4.482 4.488 4.488 0 0 1 4.489 4.482 4.484 4.484 0 0 1-4.49 4.482m0-10.85a6.363 6.363 0 1 0 0 12.729 6.37 6.37 0 0 0 6.372-6.368 6.358 6.358 0 0 0-6.371-6.36"
+                  />
+                </g>
+              </svg>
+            </a>
+          </div>
+        </div>
+
+        {searchResultState.items.length > 0 ? (
+          <main>
+            {searchResultState.items.map(
+              ({title, url, summary, breadcrumbs}, i) => (
+                <article key={i} className={styles.searchResultItem}>
+                  <h2 className={styles.searchResultItemHeading}>
+                    <Link to={url} dangerouslySetInnerHTML={{__html: title}} />
+                  </h2>
+
+                  {breadcrumbs.length > 0 && (
+                    <nav aria-label="breadcrumbs">
+                      <ul
+                        className={clsx(
+                          'breadcrumbs',
+                          styles.searchResultItemPath,
+                        )}>
+                        {breadcrumbs.map((html, index) => (
+                          <li
+                            key={index}
+                            className="breadcrumbs__item"
+                            // Developer provided the HTML, so assume it's safe.
+                            // eslint-disable-next-line react/no-danger
+                            dangerouslySetInnerHTML={{__html: html}}
+                          />
+                        ))}
+                      </ul>
+                    </nav>
+                  )}
+
+                  {summary && (
+                    <p
+                      className={styles.searchResultItemSummary}
+                      // Developer provided the HTML, so assume it's safe.
+                      // eslint-disable-next-line react/no-danger
+                      dangerouslySetInnerHTML={{__html: summary}}
+                    />
+                  )}
+                </article>
+              ),
+            )}
+          </main>
+        ) : (
+          [
+            searchQuery && !searchResultState.loading && (
+              <p key="no-results">
+                <Translate
+                  id="theme.SearchPage.noResultsText"
+                  description="The paragraph for empty search result">
+                  No results were found
+                </Translate>
+              </p>
+            ),
+            !!searchResultState.loading && (
+              <div key="spinner" className={styles.loadingSpinner} />
+            ),
+          ]
+        )}
+
+        {searchResultState.hasMore && (
+          <div className={styles.loader} ref={setLoaderRef}>
+            <Translate
+              id="theme.SearchPage.fetchingNewResults"
+              description="The paragraph for fetching new search results">
+              Fetching new results...
+            </Translate>
+          </div>
+        )}
+      </div>
+    </Layout>
+  );
+}
@@ -0,0 +1,119 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+.searchQueryInput,
+.searchVersionInput {
+  border-radius: var(--ifm-global-radius);
+  border: 2px solid var(--ifm-toc-border-color);
+  font: var(--ifm-font-size-base) var(--ifm-font-family-base);
+  padding: 0.8rem;
+  width: 100%;
+  background: var(--docsearch-searchbox-focus-background);
+  color: var(--docsearch-text-color);
+  margin-bottom: 0.5rem;
+  transition: border var(--ifm-transition-fast) ease;
+}
+
+.searchQueryInput:focus,
+.searchVersionInput:focus {
+  border-color: var(--docsearch-primary-color);
+  outline: none;
+}
+
+.searchQueryInput::placeholder {
+  color: var(--docsearch-muted-color);
+}
+
+.searchResultsColumn {
+  font-size: 0.9rem;
+  font-weight: bold;
+}
+
+.algoliaLogo {
+  max-width: 150px;
+}
+
+.algoliaLogoPathFill {
+  fill: var(--ifm-font-color-base);
+}
+
+.searchResultItem {
+  padding: 1rem 0;
+  border-bottom: 1px solid var(--ifm-toc-border-color);
+}
+
+.searchResultItemHeading {
+  font-weight: 400;
+  margin-bottom: 0;
+}
+
+.searchResultItemPath {
+  font-size: 0.8rem;
+  color: var(--ifm-color-content-secondary);
+  --ifm-breadcrumb-separator-size-multiplier: 1;
+}
+
+.searchResultItemSummary {
+  margin: 0.5rem 0 0;
+  font-style: italic;
+}
+
+@media only screen and (max-width: 996px) {
+  .searchQueryColumn {
+    max-width: 60% !important;
+  }
+
+  .searchVersionColumn {
+    max-width: 40% !important;
+  }
+
+  .searchResultsColumn {
+    max-width: 60% !important;
+  }
+
+  .searchLogoColumn {
+    max-width: 40% !important;
+    padding-left: 0 !important;
+  }
+}
+
+@media screen and (max-width: 576px) {
+  .searchQueryColumn {
+    max-width: 100% !important;
+  }
+
+  .searchVersionColumn {
+    max-width: 100% !important;
+    padding-left: var(--ifm-spacing-horizontal) !important;
+  }
+}
+
+.loadingSpinner {
+  width: 3rem;
+  height: 3rem;
+  border: 0.4em solid #eee;
+  border-top-color: var(--ifm-color-primary);
+  border-radius: 50%;
+  animation: loading-spin 1s linear infinite;
+  margin: 0 auto;
+}
+
+@keyframes loading-spin {
+  100% {
+    transform: rotate(360deg);
+  }
+}
+
+.loader {
+  margin-top: 2rem;
+}
+
+:global(.search-result-match) {
+  color: var(--docsearch-hit-color);
+  background: rgb(255 215 142 / 25%);
+  padding: 0.09em 0;
+}
@@ -2412,6 +2412,13 @@ algoliasearch-helper@^3.7.0:
  dependencies:
    "@algolia/events" "^4.0.1"

+algoliasearch-helper@^3.8.2:
+  version "3.8.2"
+  resolved "https://registry.yarnpkg.com/algoliasearch-helper/-/algoliasearch-helper-3.8.2.tgz#35726dc6d211f49dbab0bf6d37b4658165539523"
+  integrity sha512-AXxiF0zT9oYwl8ZBgU/eRXvfYhz7cBA5YrLPlw9inZHdaYF0QEya/f1Zp1mPYMXc1v6VkHwBq4pk6/vayBLICg==
+  dependencies:
+    "@algolia/events" "^4.0.1"
+
 algoliasearch@^4.0.0:
  version "4.12.1"
  resolved "https://registry.yarnpkg.com/algoliasearch/-/algoliasearch-4.12.1.tgz#574a2c5424c4b6681c026928fb810be2d2ec3924"