diff --git a/README.md b/README.md index 25f5278..92e45d2 100644 --- a/README.md +++ b/README.md @@ -1,5 +1,6 @@ # Hugo Book Theme + [![Hugo](https://img.shields.io/badge/hugo-0.68-blue.svg)](https://gohugo.io) [![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](LICENSE) ![Build with Hugo](https://github.com/alex-shpak/hugo-book/workflows/Build%20with%20Hugo/badge.svg) @@ -94,12 +95,12 @@ hugo server --minify --theme hugo-book ### File tree menu (default) -By default, the theme will render pages from the `content/docs` section as a menu in a tree structure. +By default, the theme will render pages from the `content/docs` section as a menu in a tree structure. You can set `title` and `weight` in the front matter of pages to adjust the order and titles in the menu. ### Leaf bundle menu (Deprecated, to be removed in June 2022) -You can also use leaf bundle and the content of its `index.md` file as menu. +You can also use leaf bundle and the content of its `index.md` file as menu. Given you have the following file structure: ``` @@ -133,14 +134,14 @@ And Enable it by setting `BookMenuBundle: /menu` in Site configuration. ## Blog -A simple blog is supported in the section `posts`. +A simple blog is supported in the section `posts`. A blog is not the primary usecase of this theme, so it has only minimal features. ## Configuration ### Site Configuration -There are a few configuration options that you can add to your `config.toml` file. +There are a few configuration options that you can add to your `config.toml` file. You can also see the `yaml` example [here](https://github.com/alex-shpak/hugo-book/blob/master/exampleSite/config.yaml). ```toml @@ -347,7 +348,7 @@ If you want lower maintenance, use one of the released versions. If you want to ### [Extra credits to contributors](https://github.com/alex-shpak/hugo-book/graphs/contributors) -Contributions are welcome and I will review and consider pull requests. +Contributions are welcome and I will review and consider pull requests. Primary goals are: - Keep it simple. diff --git a/assets/_main.scss b/assets/_main.scss index a9ba8ac..c88c78c 100644 --- a/assets/_main.scss +++ b/assets/_main.scss @@ -244,11 +244,65 @@ body[dir="rtl"] .book-menu { } .book-search { + z-index: 2; position: relative; margin: $padding-16 0; border-bottom: 1px solid transparent; + #book-search-input { + display: flex; + align-items: center; + img { + z-index: 5; + position: absolute; + left: 30px; + } + } + #search-overlay { + background-color: #000; + pointer-events: auto; + opacity: 0.1; + position: fixed; + top: 0; + left: 0; + width: 100vw; + height: 100vh; + z-index: 3; + } + #book-search-results { + position: absolute; + z-index: 3; + #book-search-hits { + overflow-y: scroll; + max-height: calc(100vh - 130px); // 130px -> uitopbar + content topbar + background-color: var(--body-background); + border-radius: 10px; + box-shadow: 0 16px 32px 16px rgba(0, 0, 0, 0.16); + margin-top: 5px; + padding: 16px; + position: relative; + ul { + margin: 0; + padding: 0; + li { + box-sizing: border-box; + cursor: pointer; + list-style-type: none; + padding: 10px; + h4 { + font-weight: 700; + color: var(--body-font-color); + } + &:hover { + background-color: var(--gray-100); + } + } + } + } + } input { + z-index: 4; + position: relative; width: 100%; padding: 7px 20px 7px 48px; @@ -303,14 +357,6 @@ body[dir="rtl"] .book-menu { } } -#book-search-results { - position: absolute; - z-index: 9999; - background: cyan; - li { - list-style: none; - } -} @media screen and (min-width: $mobile-breakpoint) { .book-search { diff --git a/assets/search.js b/assets/search.js index 2d75fee..2a30cec 100644 --- a/assets/search.js +++ b/assets/search.js @@ -2,29 +2,29 @@ {{ $searchDataFile := printf "%s.search-data.json" .Language.Lang }} {{ $searchData := resources.Get "search-data.json" | resources.ExecuteAsTemplate $searchDataFile . | resources.Minify | resources.Fingerprint }} -{{ $searchConfig := i18n "bookSearchConfig" | default "{}" }} (function () { const searchDataURL = '{{ $searchData.RelPermalink }}'; - const indexConfig = Object.assign({{ $searchConfig }}, { - doc: { - id: 'id', - field: ['title', 'content'], - store: ['title', 'href', 'section'] - } - }); - - const input = document.querySelector('#book-search-input'); - const results = document.querySelector('#book-search-results'); + const input = document.querySelector('#book-search-input input'); + const searchOverlay = document.querySelector('#search-overlay') + const resultsContainer = document.querySelector('#book-search-hits'); + const results = document.querySelector('#book-search-results ul'); + const LIMIT_RESULTS = Infinity + const MIN_INPUT_SIZE = 2 // SDK ✅ + const documents = new Map() if (!input) { return } + // Listeners input.addEventListener('focus', init); input.addEventListener('keyup', search); - document.addEventListener('keypress', focusSearchFieldOnKeyPress); + searchOverlay.addEventListener('click', () => { + hideSearchBox() + }) + /** * @param {Event} event @@ -49,7 +49,7 @@ /** * @param {String} character - * @returns {Boolean} + * @returns {Boolean} */ function isHotkey(character) { const dataHotkeys = input.getAttribute('data-hotkeys') || ''; @@ -59,39 +59,114 @@ function init() { input.removeEventListener('focus', init); // init once input.required = true; - fetch(searchDataURL) .then(pages => pages.json()) .then(pages => { - window.bookSearchIndex = FlexSearch.create('balance', indexConfig); - window.bookSearchIndex.add(pages); + window.lunrIdx = lunr(function() { + this.ref('id') + this.field('id') + this.field('content') + this.field('href') + this.metadataWhitelist = ['position'] + for (const page of pages) { + documents.set(page.id, page) + this.add(page); + } + }) }) .then(() => input.required = false) .then(search); } function search() { + const value = input.value?.trim() + if (input.required) { + return + } + while (results.firstChild) { results.removeChild(results.firstChild); } - if (!input.value) { + if (!value || value.length <= MIN_INPUT_SIZE) { + hideSearchBox() return; } - const searchHits = window.bookSearchIndex.search(input.value, 10); - searchHits.forEach(function (page) { - const li = element('
    • '); - const a = li.querySelector('a'), small = li.querySelector('small'); + function searchValue(fuzzy) { + // Operators: + // +: means AND. i.e +sdk +metaverse will found words that contains sdk & metaverse + // ~n: looks for N fuzzy words. i.e. metaverse~1 => metavese ✅ + return value.split(' ').map(val => { + // Avoid blankspaces + if (!val) return + // if its a short word or fuzzy option is turned off, then return only the value with the +operator + if (val.length <= 4 || !fuzzy) return `+${val}` - a.href = page.href; - a.textContent = page.title; - small.textContent = page.section; + return `+${val}~1` + }).filter(a => !!a).join(' ') + } - results.appendChild(li); + function getSearchHits() { + // First search for the words without fuzzy, so we can have a more accurate result. + const hits = window.lunrIdx.search(searchValue()).slice(0, LIMIT_RESULTS); + if (hits.length) return hits + return window.lunrIdx.search(searchValue(true)).slice(0, LIMIT_RESULTS); + } + const searchHits = getSearchHits() + showSearchBox() + if (!searchHits.length) { + resultCard(`Not Found`, `Sorry, we couldn't find any matches. Try searching for a different keyword`) + return + } + searchHits.forEach((hit) => { + const document = documents.get(Number(hit.ref)) + if (!document) return + const highlightedContent = highlightContent(document.content, hit) + resultCard(document.title, highlightedContent, document.href) }); } + function resultCard(title, content, href) { + const li = element('

    • '); + if (href) li.querySelector('a').href = href; + li.querySelector('h4').textContent = title; + li.querySelector('span').innerHTML = content + results.appendChild(li); + } + + function highlightContent(content, hit) { + const amountLetters = 60 + const { metadata } = hit.matchData + let from = 0 + let to = 100 + const keys = Object.keys(metadata).sort() + for (const key of keys) { + const positions = metadata[key]?.content?.position + if (!positions) { + continue + } + for (const position of positions) { + const positionStart = position[0] + from = Math.max(0, content.length - positionStart <= amountLetters + ? positionStart - amountLetters * 2 + : positionStart - amountLetters) + to = positionStart + position[1] + amountLetters + } + break + } + let value = content.slice(from, to) + if (from !== 0) { + value = `...${value}` + } + for (const key of keys) { + value = value.replace(new RegExp(key, 'gi'), '$&') + } + + return value + '...' + } + + // HELPERS /** * @param {String} content * @returns {Node} @@ -101,4 +176,26 @@ div.innerHTML = content; return div.firstChild; } + + function hide(element) { + element.classList.add('hidden') + } + + function show(element) { + element.classList.remove('hidden') + } + + function showSearchBox() { + if (!resultsContainer.classList.contains('hidden')) { + return + } + resultsContainer.scrollTop = 0 + show(searchOverlay) + show(resultsContainer) + } + + function hideSearchBox() { + hide(searchOverlay) + hide(resultsContainer) + } })(); diff --git a/layouts/partials/docs/html-head.html b/layouts/partials/docs/html-head.html index b22c610..90fd79e 100644 --- a/layouts/partials/docs/html-head.html +++ b/layouts/partials/docs/html-head.html @@ -27,7 +27,7 @@ {{- if default true .Site.Params.BookSearch -}} {{- $searchJSFile := printf "%s.search.js" .Language.Lang }} {{- $searchJS := resources.Get "search.js" | resources.ExecuteAsTemplate $searchJSFile . | resources.Minify | resources.Fingerprint }} - + {{ end -}} diff --git a/layouts/partials/docs/search.html b/layouts/partials/docs/search.html index 5cc9dad..6eef719 100644 --- a/layouts/partials/docs/search.html +++ b/layouts/partials/docs/search.html @@ -1,7 +1,15 @@ {{ if default true .Site.Params.BookSearch }}
    - + +
    + Search + +
    - +
    + +
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r=t.consumeLexeme();if(void 0!=r){switch(r.str){case"-":t.currentClause.presence=e.Query.presence.PROHIBITED;break;case"+":t.currentClause.presence=e.Query.presence.REQUIRED;break;default:var i="unrecognised presence operator'"+r.str+"'";throw new e.QueryParseError(i,r.start,r.end)}var n=t.peekLexeme();if(void 0==n){var i="expecting term or field, found nothing";throw new e.QueryParseError(i,r.start,r.end)}switch(n.type){case e.QueryLexer.FIELD:return e.QueryParser.parseField;case e.QueryLexer.TERM:return e.QueryParser.parseTerm;default:var i="expecting term or field, found '"+n.type+"'";throw new e.QueryParseError(i,n.start,n.end)}}},e.QueryParser.parseField=function(t){var r=t.consumeLexeme();if(void 0!=r){if(t.query.allFields.indexOf(r.str)==-1){var i=t.query.allFields.map(function(e){return"'"+e+"'"}).join(", "),n="unrecognised field '"+r.str+"', possible fields: "+i;throw new e.QueryParseError(n,r.start,r.end)}t.currentClause.fields=[r.str];var s=t.peekLexeme();if(void 0==s){var n="expecting term, found nothing";throw new e.QueryParseError(n,r.start,r.end)}switch(s.type){case e.QueryLexer.TERM:return e.QueryParser.parseTerm;default:var n="expecting term, found '"+s.type+"'";throw new e.QueryParseError(n,s.start,s.end)}}},e.QueryParser.parseTerm=function(t){var r=t.consumeLexeme();if(void 0!=r){t.currentClause.term=r.str.toLowerCase(),r.str.indexOf("*")!=-1&&(t.currentClause.usePipeline=!1);var i=t.peekLexeme();if(void 0==i)return void t.nextClause();switch(i.type){case e.QueryLexer.TERM:return t.nextClause(),e.QueryParser.parseTerm;case e.QueryLexer.FIELD:return t.nextClause(),e.QueryParser.parseField;case e.QueryLexer.EDIT_DISTANCE:return e.QueryParser.parseEditDistance;case e.QueryLexer.BOOST:return e.QueryParser.parseBoost;case e.QueryLexer.PRESENCE:return t.nextClause(),e.QueryParser.parsePresence;default:var n="Unexpected lexeme type '"+i.type+"'";throw new e.QueryParseError(n,i.start,i.end)}}},e.QueryParser.parseEditDistance=function(t){var r=t.consumeLexeme();if(void 0!=r){var i=parseInt(r.str,10);if(isNaN(i)){var n="edit distance must be numeric";throw new e.QueryParseError(n,r.start,r.end)}t.currentClause.editDistance=i;var s=t.peekLexeme();if(void 0==s)return void t.nextClause();switch(s.type){case e.QueryLexer.TERM:return t.nextClause(),e.QueryParser.parseTerm;case e.QueryLexer.FIELD:return t.nextClause(),e.QueryParser.parseField;case e.QueryLexer.EDIT_DISTANCE:return e.QueryParser.parseEditDistance;case e.QueryLexer.BOOST:return e.QueryParser.parseBoost;case e.QueryLexer.PRESENCE:return t.nextClause(),e.QueryParser.parsePresence;default:var n="Unexpected lexeme type '"+s.type+"'";throw new e.QueryParseError(n,s.start,s.end)}}},e.QueryParser.parseBoost=function(t){var r=t.consumeLexeme();if(void 0!=r){var i=parseInt(r.str,10);if(isNaN(i)){var n="boost must be numeric";throw new e.QueryParseError(n,r.start,r.end)}t.currentClause.boost=i;var s=t.peekLexeme();if(void 0==s)return void t.nextClause();switch(s.type){case e.QueryLexer.TERM:return t.nextClause(),e.QueryParser.parseTerm;case e.QueryLexer.FIELD:return t.nextClause(),e.QueryParser.parseField;case e.QueryLexer.EDIT_DISTANCE:return e.QueryParser.parseEditDistance;case e.QueryLexer.BOOST:return e.QueryParser.parseBoost;case e.QueryLexer.PRESENCE:return t.nextClause(),e.QueryParser.parsePresence;default:var n="Unexpected lexeme type '"+s.type+"'";throw new e.QueryParseError(n,s.start,s.end)}}},function(e,t){"function"==typeof define&&define.amd?define(t):"object"==typeof exports?module.exports=t():e.lunr=t()}(this,function(){return e})}(); \ No newline at end of file diff --git a/static/svg/search.svg b/static/svg/search.svg new file mode 100644 index 0000000..6a43842 --- /dev/null +++ b/static/svg/search.svg @@ -0,0 +1,6 @@ + + + + + +