whoogle-search/app/static/js/keyboard.js

44 lines
929 B
JavaScript

(function () {
let searchBar, results;
const keymap = {
ArrowUp: goUp,
ArrowDown: goDown,
k: goUp,
j: goDown,
'/': focusSearch,
};
let activeIdx = -1;
document.addEventListener('DOMContentLoaded', () => {
searchBar = document.querySelector('#search-bar');
results = document.querySelectorAll('#main>div>div>div>a');
});
document.addEventListener('keydown', (e) => {
if (typeof keymap[e.key] === 'function') {
e.preventDefault();
keymap[e.key]();
}
});
function goUp () {
if (activeIdx > 0) focusResult(activeIdx - 1);
else focusSearch();
}
function goDown () {
if (activeIdx < results.length - 1) focusResult(activeIdx + 1);
}
function focusResult (idx) {
activeIdx = idx;
results[activeIdx].scrollIntoView({ behavior: 'smooth', block: 'center', inline: 'nearest' });
results[activeIdx].focus();
}
function focusSearch () {
activeIdx = -1;
searchBar.focus();
}
}());