adding event tracking to site search (#1872)

This commit is contained in:
Brian Talbot
2025-12-17 15:22:18 -05:00
committed by GitHub
parent 6e5a720f51
commit c748721f12

View File

@@ -1,12 +1,24 @@
// Search data
const version = document.documentElement.getAttribute('data-version') || '';
const res = await Promise.all([import('https://cdn.jsdelivr.net/npm/lunr/+esm'), fetch(`/search.json?v=${version}`)]);
const res = await Promise.all([
import('https://cdn.jsdelivr.net/npm/lunr/+esm'),
fetch(`/search.json?v=${version}`),
import('/assets/scripts/track.js').catch(() => null),
]);
const lunr = res[0].default;
const searchData = await res[1].json();
const searchIndex = lunr.Index.load(searchData.searchIndex);
const map = searchData.map;
const searchDebounce = 200;
const queryTrackDelay = 1000;
let searchTimeout;
let queryTrackTimeout;
let lastTrackedQuery = '';
let resultSelected = false;
// Optional event tracking - works standalone if track.js isn't available
const trackModule = res[2];
const trackEvent = trackModule?.trackEvent || window.trackEvent || (() => {});
// We're using Turbo, so references to these elements aren't guaranteed to remain intact
function getElements() {
@@ -17,6 +29,24 @@ function getElements() {
};
}
function trackQuerySubmit(query, resultSelectedValue) {
if (!query || query.length === 0) return;
const { results } = getElements();
if (!results) return;
const matches = results.querySelectorAll('li').length;
const truncatedQuery = query.length > 500 ? query.substring(0, 500) : query;
trackEvent('navigation:search_query_submit', {
query: truncatedQuery,
query_length: query.length,
result_count: matches,
has_results: matches > 0,
result_selected: resultSelectedValue,
});
}
// Show the search dialog when slash (or CMD+K) is pressed and focus is not inside a form element
document.addEventListener('keydown', event => {
if (
@@ -42,40 +72,98 @@ document.addEventListener('click', event => {
function show() {
const { dialog, input, results } = getElements();
if (!dialog || !input || !results) return;
const wasAlreadyOpen = dialog.open;
// Remove existing listeners before adding to prevent duplicates
input.removeEventListener('input', handleInput);
results.removeEventListener('click', handleSelection);
dialog.removeEventListener('keydown', handleKeyDown);
dialog.removeEventListener('wa-hide', handleClose);
resultSelected = false;
lastTrackedQuery = '';
input.addEventListener('input', handleInput);
results.addEventListener('click', handleSelection);
dialog.addEventListener('keydown', handleKeyDown);
dialog.addEventListener('wa-hide', handleClose);
dialog.open = true;
if (!wasAlreadyOpen) {
trackEvent('navigation:search_dialog_open');
}
}
function hide() {
function cleanup() {
const { dialog, input, results } = getElements();
if (!dialog || !input || !results) return;
clearTimeout(searchTimeout);
clearTimeout(queryTrackTimeout);
input.removeEventListener('input', handleInput);
results.removeEventListener('click', handleSelection);
dialog.removeEventListener('keydown', handleKeyDown);
dialog.removeEventListener('wa-hide', handleClose);
dialog.open = false;
// Reset state to prevent leakage between dialog sessions
resultSelected = false;
lastTrackedQuery = '';
}
function handleClose() {
const { input } = getElements();
async function handleClose() {
const { dialog, input } = getElements();
if (!dialog || !input) return;
clearTimeout(queryTrackTimeout);
queryTrackTimeout = null;
dialog.removeEventListener('wa-hide', handleClose);
if (!resultSelected) {
const query = input.value.trim();
if (query.length > 0 && query !== lastTrackedQuery) {
trackQuerySubmit(query, false);
lastTrackedQuery = query;
}
}
input.value = '';
updateResults();
try {
await updateResults();
} catch (error) {
// Silently handle errors - UI cleanup should continue
}
cleanup();
trackEvent('navigation:search_dialog_close');
}
function handleInput() {
const { input } = getElements();
if (!input) return;
clearTimeout(searchTimeout);
searchTimeout = setTimeout(() => updateResults(input.value), searchDebounce);
clearTimeout(queryTrackTimeout);
const query = input.value.trim();
if (query.length === 0) {
lastTrackedQuery = '';
}
searchTimeout = setTimeout(async () => {
await updateResults(query);
if (query.length > 0 && query !== lastTrackedQuery) {
queryTrackTimeout = setTimeout(() => {
const { input: currentInput, results } = getElements();
if (!currentInput || resultSelected) return;
const currentQuery = currentInput.value.trim();
if (currentQuery === query && currentQuery !== lastTrackedQuery) {
trackQuerySubmit(currentQuery, false);
lastTrackedQuery = currentQuery;
}
}, queryTrackDelay);
}
}, searchDebounce);
}
function handleKeyDown(event) {
const { input, results } = getElements();
if (!input || !results) return;
// Handle keyboard selections
if (['ArrowDown', 'ArrowUp', 'Home', 'End', 'Enter'].includes(event.key)) {
@@ -104,7 +192,12 @@ function handleKeyDown(event) {
nextEl = items[items.length - 1];
break;
case 'Enter':
currentEl?.querySelector('a')?.click();
if (currentEl) {
const link = currentEl.querySelector('a');
if (link) {
selectResult(link, 'keyboard_enter');
}
}
break;
}
@@ -121,27 +214,62 @@ function handleKeyDown(event) {
}
}
function selectResult(link, selectionMethod) {
const { input, results } = getElements();
if (!input || !link) return;
// Clear pending query tracking timeout to prevent duplicate events
clearTimeout(queryTrackTimeout);
queryTrackTimeout = null;
resultSelected = true; // Set immediately so timeout callback (if executing) sees it
const query = input.value.trim();
if (!link.dataset.searchResultIndex) return;
const resultIndex = parseInt(link.dataset.searchResultIndex, 10);
if (isNaN(resultIndex) || resultIndex < 1) return;
const resultUrl = link.dataset.searchResultUrl || link.getAttribute('href');
if (!resultUrl) return;
lastTrackedQuery = query;
trackQuerySubmit(query, true);
trackEvent('navigation:search_result_click', {
query,
result_index: resultIndex,
result_url: resultUrl,
selection_method: selectionMethod,
});
const { dialog } = getElements();
if (dialog) {
dialog.removeEventListener('wa-hide', handleClose);
cleanup();
trackEvent('navigation:search_dialog_close');
dialog.open = false;
}
if (window.Turbo) {
Turbo.visit(resultUrl);
} else {
location.href = resultUrl;
}
}
function handleSelection(event) {
const link = event.target.closest('a');
if (link) {
event.preventDefault();
hide();
if (window.Turbo) {
Turbo.visit(link.href);
} else {
location.href = link.href;
}
selectResult(link, 'mouse_click');
}
}
// Queries the search index and updates the results
async function updateResults(query = '') {
const { dialog, input, results } = getElements();
if (!dialog || !input || !results) return;
try {
const hasQuery = query.length > 0;
const trimmedQuery = query.trim();
const hasQuery = trimmedQuery.length > 0;
let matches = [];
if (hasQuery) {
@@ -149,13 +277,13 @@ async function updateResults(query = '') {
const seenRefs = new Set();
// Start with a standard search to get the best "exact match" result
searchIndex.search(`${query}`).forEach(match => {
searchIndex.search(`${trimmedQuery}`).forEach(match => {
matches.push(match);
seenRefs.add(match.ref);
});
// Add wildcard matches if not already included
searchIndex.search(`${query}*`).forEach(match => {
searchIndex.search(`${trimmedQuery}*`).forEach(match => {
if (!seenRefs.has(match.ref)) {
matches.push(match);
seenRefs.add(match.ref);
@@ -163,11 +291,10 @@ async function updateResults(query = '') {
});
// Add fuzzy search matches last
const fuzzyTokens = query
const fuzzyTokens = trimmedQuery
.split(' ')
.map(term => `${term}~1`)
.join(' ');
searchIndex.search(fuzzyTokens).forEach(match => {
if (!seenRefs.has(match.ref)) {
matches.push(match);
@@ -180,12 +307,12 @@ async function updateResults(query = '') {
dialog.classList.toggle('has-results', hasQuery && hasResults);
dialog.classList.toggle('no-results', hasQuery && !hasResults);
input.setAttribute('aria-activedescendant', '');
results.innerHTML = '';
matches.forEach((match, index) => {
const page = map[match.ref];
if (!page || !page.url) return;
const li = document.createElement('li');
const a = document.createElement('a');
const displayTitle = page.title ?? '';
@@ -197,12 +324,10 @@ async function updateResults(query = '') {
li.setAttribute('role', 'option');
li.setAttribute('id', `search-result-item-${match.ref}`);
li.setAttribute('data-selected', index === 0 ? 'true' : 'false');
if (page.url === '/') icon = 'home';
if (page.url.startsWith('/docs/utilities/native')) icon = 'code';
if (page.url.startsWith('/docs/components')) icon = 'puzzle-piece';
if (page.url.startsWith('/docs/theme') || page.url.startsWith('/docs/restyle')) icon = 'palette';
a.href = page.url;
a.innerHTML = `
<div class="site-search-result-icon" aria-hidden="true">
@@ -218,6 +343,9 @@ async function updateResults(query = '') {
a.querySelector('.site-search-result-description').textContent = displayDescription;
a.querySelector('.site-search-result-url').textContent = displayUrl;
// Use 1-based indexing for analytics
a.dataset.searchResultIndex = (index + 1).toString();
a.dataset.searchResultUrl = page.url;
li.appendChild(a);
results.appendChild(li);
});