import * as params from '@params'; var fuse; // holds our search engine var resList = document.getElementById('searchResults'); var sInput = document.getElementById('searchInput'); var first, last, current_elem = null var resultsAvailable = false; // load our search index window.onload = function () { var xhr = new XMLHttpRequest(); xhr.onreadystatechange = function () { if (xhr.readyState === 4) { if (xhr.status === 200) { var data = JSON.parse(xhr.responseText); if (data) { // fuse.js options; check fuse.js website for details var options = { distance: 100, threshold: 0.4, ignoreLocation: true, keys: [ 'title', 'permalink', 'summary', 'content' ] }; if (params.fuseOpts) options = params.fuseOpts; fuse = new Fuse(data, options); // build the index from the json file } } else { console.log(xhr.responseText); } } }; xhr.open('GET', "../index.json"); xhr.send(); } function activeToggle(ae) { document.querySelectorAll('.focus').forEach(function (element) { // rm focus class element.classList.remove("focus") }); if (ae) { ae.focus() document.activeElement = current_elem = ae; ae.parentElement.classList.add("focus") } else { document.activeElement.parentElement.classList.add("focus") } } function reset() { resultsAvailable = false; resList.innerHTML = sInput.value = ''; // clear inputbox and searchResults sInput.focus(); // shift focus to input box } // execute search as each character is typed sInput.onkeyup = function (e) { // run a search query (for "term") every time a letter is typed // in the search box if (fuse) { const results = fuse.search(this.value.trim()); // the actual query being run using fuse.js if (results.length !== 0) { // build our html if result exists let resultSet = ''; // our results bucket for (let item in results) { resultSet += `
  • ${results[item].item.title} ยป
    ` + `
  • ` } resList.innerHTML = resultSet; resultsAvailable = true; first = resList.firstChild; last = resList.lastChild; } else { resultsAvailable = false; resList.innerHTML = ''; } } } sInput.addEventListener('search', function (e) { // clicked on x if (!this.value) reset() }) // kb bindings document.onkeydown = function (e) { let key = e.key; var ae = document.activeElement; let inbox = document.getElementById("searchbox").contains(ae) if (ae === sInput) { var elements = document.getElementsByClassName('focus'); while (elements.length > 0) { elements[0].classList.remove('focus'); } } else if (current_elem) ae = current_elem; if (key === "Escape") { reset() } else if (!resultsAvailable || !inbox) { return } else if (key === "ArrowDown") { e.preventDefault(); if (ae == sInput) { // if the currently focused element is the search input, focus the of first
  • activeToggle(resList.firstChild.lastChild); } else if (ae.parentElement != last) { // if the currently focused element's parent is last, do nothing // otherwise select the next search result activeToggle(ae.parentElement.nextSibling.lastChild); } } else if (key === "ArrowUp") { e.preventDefault(); if (ae.parentElement == first) { // if the currently focused element is first item, go to input box activeToggle(sInput); } else if (ae != sInput) { // if the currently focused element is input box, do nothing // otherwise select the previous search result activeToggle(ae.parentElement.previousSibling.lastChild); } } else if (key === "ArrowRight") { ae.click(); // click on active link } }