hackertours-theme/assets/js/search.js
2021-08-17 08:52:46 +02:00

87 lines
2.2 KiB
JavaScript

/* eslint-disable no-undef */
/**
* @file
* A JavaScript file for flexsearch.
*/
(function () {
'use strict';
const index = new FlexSearch.Document({
document: {
id: 'id',
index: ['title','tags','content','date'],
store: ['title','summary','date','permalink']
}
});
function showResults(items) {
const template = document.querySelector('template').content;
const fragment = document.createDocumentFragment();
const results = document.querySelector('.search-results');
results.textContent = '';
for (const id in items) {
const item = items[id];
const result = template.cloneNode(true);
const a = result.querySelector('a');
const time = result.querySelector('time');
const content = result.querySelector('.content');
a.innerHTML = item.title;
a.href = item.permalink;
time.innerText = item.date;
content.innerHTML = item.summary;
fragment.appendChild(result);
}
results.appendChild(fragment);
}
function doSearch() {
const query = document.querySelector('.search-text').value.trim();
const results = index.search({
query: query,
enrich: true,
limit: {{ .Site.Params.searchLimit | default 20 }}
});
const items = {};
results.forEach( function(result) {
result.result.forEach( function(r) {
items[r.id] = r.doc;
});
});
showResults(items);
}
function enableUI() {
const searchform = document.querySelector('.search-form');
searchform.addEventListener('submit', function (e) {
e.preventDefault();
doSearch();
});
searchform.addEventListener('input', function () {
doSearch();
});
document.querySelector('.search-loading').classList.add('hidden');
document.querySelector('.search-input').classList.remove('hidden');
document.querySelector('.search-text').focus();
}
function buildIndex() {
document.querySelector('.search-loading').classList.remove('hidden');
fetch('/searchindex.json')
.then(function (response) {
return response.json();
})
.then(function (data) {
data.forEach(function (item) {
index.add(item);
})
});
}
buildIndex();
enableUI();
})();