hugo-theme-hilfe/assets/js/search.js
2020-12-21 13:14:51 +01:00

115 lines
3.1 KiB
JavaScript

'use strict';
{{ $searchDataFile := printf "js/%s.search-data.js" .Language.Lang }}
{{ $searchData := resources.Get "js/search-data.js" | resources.ExecuteAsTemplate $searchDataFile . | resources.Minify | resources.Fingerprint }}
(function() {
const input = document.querySelector('#gdoc-search-input');
const results = document.querySelector('#gdoc-search-results');
let showParent = false
{{ if .Site.Params.GeekdocSearchShowParent }}
showParent = true
{{ end }}
input.addEventListener('focus', init);
input.addEventListener('keyup', search);
function init() {
input.removeEventListener('focus', init); // init once
input.required = true;
loadScript('{{ index .Site.Data.assets "js/flexsearch.min.js" | relURL }}');
loadScript('{{ $searchData.RelPermalink }}', function() {
input.required = false;
search();
});
loadScript('{{ index .Site.Data.assets "js/groupBy.min.js" | relURL }}');
}
function search() {
while (results.firstChild) {
results.removeChild(results.firstChild);
}
if (!input.value) {
console.log("empty")
results.classList.remove("has-hits");
return;
}
let searchHits = window.geekdocSearchIndex.search(input.value, 10);
console.log(searchHits.length);
if (searchHits.length < 1) {
return results.classList.remove("has-hits");
}
results.classList.add("has-hits");
if (showParent) {
searchHits = groupBy(searchHits, hit => hit.parent);
}
const items = [];
for (const section in searchHits) {
const item = document.createElement('li');
if (showParent) {
const title = item.appendChild(document.createElement('span'));
title.textContent = section;
}
const subList = item.appendChild(document.createElement('ul'));
createLinks(searchHits[section], subList);
items.push(item);
}
items.forEach(item => {
results.appendChild(item);
})
}
/**
* Creates links to given pages and either returns them in an array or attaches them to a target element
* @param {Object} pages Page to which the link should point to
* @param {HTMLElement} target Element to which the links should be attatched
* @returns {Array} If target is not specified, returns an array of built links
*/
function createLinks(pages, target) {
const items = [];
for (const page of pages) {
const item = document.createElement("li"),
entry = item.appendChild(document.createElement("span")),
a = entry.appendChild(document.createElement("a"));
entry.classList.add("flex")
a.href = page.href;
a.textContent = page.title;
a.classList.add("gdoc-search__entry")
if (target) {
target.appendChild(item);
continue
}
items.push(item);
}
return items;
}
function loadScript(src, callback) {
const script = document.createElement('script');
script.defer = true;
script.async = false;
script.src = src;
script.onload = callback;
document.head.appendChild(script);
}
})();