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mdn-timelines.html
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<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
* {
box-sizing: border-box;
}
body {
font-family: Helvetica, Arial, sans-serif;
font-size: 16px;
margin: 2rem 1rem;
max-width: 800px;
margin: 0 auto;
line-height: 1.2;
}
#autocomplete-container {
position: relative;
width: 100%;
}
#search-input {
width: 100%;
padding: 10px;
font-size: 16px;
}
#suggestions {
position: absolute;
top: 100%;
left: 0;
right: 0;
max-height: 300px;
overflow-y: auto;
border: 1px solid #ddd;
background: white;
z-index: 10;
margin: 0 15px;
}
.suggestion-item {
padding: 10px;
cursor: pointer;
}
.suggestion-item:hover, .suggestion-item.selected {
background-color: #f0f0f0;
}
#timeline, .timeline {
position: relative;
border-left: 2px solid #ccc;
margin-left: 20px;
padding-left: 20px;
margin-top: 2em;
}
.event {
margin-bottom: 20px;
position: relative;
}
.event::before {
content: '';
position: absolute;
left: -26px;
top: 5px;
width: 10px;
height: 10px;
border-radius: 50%;
background: #3b82f6;
}
.event-date {
font-size: 0.875rem;
color: #666;
}
.event-browser {
font-weight: 600;
color: #1f2937;
}
.event-version {
color: #059669;
margin-left: 4px;
}
.error {
color: #dc2626;
margin-top: 8px;
display: none;
padding: 8px;
background: #fef2f2;
border-radius: 4px;
}
.not-supported {
margin-top: 20px;
padding: 12px;
background: #f3f4f6;
border-radius: 4px;
}
.api-section {
margin-top: 2rem;
padding: 1rem;
border: 1px solid #e5e7eb;
border-radius: 8px;
}
.api-section h2 {
margin-top: 0;
color: #1f2937;
font-size: 1.5rem;
word-break: break-word;
line-height: 1.4;
}
.api-info {
margin: 1rem 0;
}
.api-info-item {
margin: 0.5rem 0;
}
.api-info-label {
font-weight: 600;
color: #4b5563;
}
.status-indicator {
display: inline-block;
padding: 0.25rem 0.5rem;
border-radius: 4px;
font-size: 0.875rem;
margin-right: 0.5rem;
}
.status-experimental {
background-color: #fef3c7;
color: #92400e;
}
.status-deprecated {
background-color: #fee2e2;
color: #991b1b;
}
.status-standard {
background-color: #d1fae5;
color: #065f46;
}
@media (max-width: 600px) {
body {
margin: 1rem;
font-size: 14px;
}
#timeline {
margin-left: 10px;
padding-left: 10px;
}
.event::before {
left: -16px;
}
}
</style>
</head>
<body>
<h1>MDN Browser Support Timelines</h1>
<p><a href="https://simonwillison.net/2024/Nov/11/mdn-browser-support-timelines/">Background on this project</a></p>
<div id="autocomplete-container">
<input type="text" id="search-input" placeholder="Search files...">
<div id="suggestions"></div>
</div>
<div id="timeline-section">
<div id="timeline"></div>
</div>
<div id="api-details"></div>
<script>
let allFiles = [];
let selectedFiles = [];
async function fetchAllFiles() {
try {
// First API call to get repository contents
const contentsResponse = await fetch('https://api.github.com/repos/mdn/browser-compat-data/contents');
if (!contentsResponse.ok) {
throw new Error(`HTTP error! status: ${contentsResponse.status}`);
}
const contentsData = await contentsResponse.json();
// Find the object with name: "api"
const apiObject = contentsData.find(item => item.name === "api");
if (!apiObject) {
throw new Error('Could not find object with name "api"');
}
// Extract the git URL from _links
const gitUrl = apiObject._links?.git;
if (!gitUrl) {
throw new Error('Git URL not found in _links');
}
// Second API call to fetch the git data
const gitResponse = await fetch(gitUrl);
if (!gitResponse.ok) {
throw new Error(`HTTP error! status: ${gitResponse.status}`);
}
const gitData = await gitResponse.json();
// Return the tree array from the git data
if (!gitData.tree) {
throw new Error('Tree data not found in git response');
}
return gitData.tree;
} catch (error) {
console.error('Error fetching GitHub data:', error);
throw error;
}
}
function updateUrlHash(filePath) {
if (filePath) {
history.pushState({ filePath }, '', `#${filePath}`);
} else {
history.pushState({ filePath: null }, '', window.location.pathname);
}
}
function clearDisplay() {
document.getElementById('search-input').value = '';
document.getElementById('timeline').innerHTML = '';
document.getElementById('api-details').innerHTML = '';
document.getElementById('suggestions').innerHTML = '';
}
function getHashPath() {
const hash = window.location.hash.slice(1);
return hash ? decodeURIComponent(hash) : null;
}
function setupAutocomplete() {
const searchInput = document.getElementById('search-input');
const suggestionsContainer = document.getElementById('suggestions');
searchInput.addEventListener('input', () => {
const searchTerm = searchInput.value.toLowerCase();
const regexPattern = searchTerm
.split(' ')
.filter(term => term.length > 0) // Remove empty strings from multiple spaces
.map(term => term.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')) // Escape regex special chars
.join('.*');
const searchRegex = new RegExp(regexPattern);
const filteredFiles = allFiles.filter(file =>
searchRegex.test(file.toLowerCase())
).slice(0, 20);
suggestionsContainer.innerHTML = '';
filteredFiles.forEach((file, index) => {
const suggestionItem = document.createElement('div');
suggestionItem.textContent = file;
suggestionItem.className = 'suggestion-item';
suggestionItem.setAttribute('data-index', index);
suggestionItem.addEventListener('click', () => {
searchInput.value = file;
suggestionsContainer.innerHTML = '';
fetchBrowserCompatData(file);
});
suggestionsContainer.appendChild(suggestionItem);
});
});
searchInput.addEventListener('keydown', handleKeyboardNavigation);
}
function handleKeyboardNavigation(e) {
const suggestionsContainer = document.getElementById('suggestions');
const suggestions = suggestionsContainer.children;
if (e.key === 'ArrowDown' || e.key === 'ArrowUp') {
e.preventDefault();
if (suggestions.length > 0) {
const currentSelected = suggestionsContainer.querySelector('.selected');
const nextIndex = currentSelected
? Math.min(parseInt(currentSelected.getAttribute('data-index')) + (e.key === 'ArrowDown' ? 1 : -1), suggestions.length - 1)
: 0;
if (currentSelected) currentSelected.classList.remove('selected');
suggestions[nextIndex].classList.add('selected');
}
} else if (e.key === 'Enter') {
const selectedItem = suggestionsContainer.querySelector('.selected') ||
suggestionsContainer.children[0];
if (selectedItem) {
e.preventDefault();
const searchInput = document.getElementById('search-input');
searchInput.value = selectedItem.textContent;
suggestionsContainer.innerHTML = '';
fetchBrowserCompatData(selectedItem.textContent);
}
}
}
function renderApiSection(data) {
const apiDetails = document.getElementById('api-details');
apiDetails.innerHTML = '';
// Render main API section
const mainSection = createApiSection(data.data.__compat, data.query);
apiDetails.appendChild(mainSection);
// Render sub-features
Object.entries(data.data).forEach(([key, value]) => {
if (key !== '__compat' && value.__compat) {
const subSection = createApiSection(value.__compat, `${data.query}.${key}`);
apiDetails.appendChild(subSection);
}
});
}
function createApiSection(compat, title) {
const section = document.createElement('section');
section.className = 'api-section';
const heading = document.createElement('h2');
heading.textContent = title;
section.appendChild(heading);
const info = document.createElement('div');
info.className = 'api-info';
// Add MDN link if available
if (compat.mdn_url) {
const mdnLink = document.createElement('div');
mdnLink.className = 'api-info-item';
const mdnUrl = compat.mdn_url.replace('/en-US/docs/Web/API/', 'https://developer.mozilla.org/en-US/docs/Web/API/');
mdnLink.innerHTML = `<span class="api-info-label">MDN Documentation:</span> <a href="${mdnUrl}" target="_blank">${mdnUrl}</a>`;
info.appendChild(mdnLink);
}
// Add specification link if available
if (compat.spec_url) {
const specLink = document.createElement('div');
specLink.className = 'api-info-item';
specLink.innerHTML = `<span class="api-info-label">Specification:</span> <a href="${compat.spec_url}" target="_blank">${compat.spec_url}</a>`;
info.appendChild(specLink);
}
// Add status indicators
if (compat.status) {
const statusDiv = document.createElement('div');
statusDiv.className = 'api-info-item';
Object.entries(compat.status).forEach(([key, value]) => {
if (value) {
const status = document.createElement('span');
status.className = `status-indicator status-${key}`;
status.textContent = key.charAt(0).toUpperCase() + key.slice(1);
statusDiv.appendChild(status);
}
});
info.appendChild(statusDiv);
}
section.appendChild(info);
// Add timeline for this section
const timelineDiv = document.createElement('div');
timelineDiv.className = 'timeline';
const supportData = extractSupportData({
browsers: compat.support
});
renderTimeline(supportData, timelineDiv);
section.appendChild(timelineDiv);
return section;
}
async function fetchBrowserCompatData(filePath) {
try {
updateUrlHash(filePath);
const url = `https://bcd.developer.mozilla.org/bcd/api/v0/current/api.${filePath}.json`;
const response = await fetch(url);
if (!response.ok) {
throw new Error(`HTTP error! status: ${response.status}`);
}
const data = await response.json();
const timelineData = extractSupportData(data);
renderTimeline(timelineData);
renderApiSection(data);
} catch (error) {
console.error('Error fetching browser compat data:', error);
renderErrorMessage(error.message);
}
}
function extractSupportData(data) {
const browsers = data.browsers;
const supportData = [];
const notSupported = [];
for (const [browserName, supportInfo] of Object.entries(browsers)) {
if (!supportInfo[0]) continue;
if (supportInfo[0].version_added === false) {
notSupported.push(browsers[browserName]?.name || browserName);
continue;
}
if (!supportInfo[0].version_added || !supportInfo[0].release_date) continue;
supportData.push({
browser: browsers[browserName]?.name || browserName,
version: supportInfo[0].version_added,
date: supportInfo[0].release_date
});
}
return {
supported: supportData.sort((a, b) => new Date(a.date) - new Date(b.date)),
notSupported
};
}
function formatDate(dateStr) {
return new Date(dateStr).toLocaleDateString('en-US', {
year: 'numeric',
month: 'long',
day: 'numeric'
});
}
function renderTimeline(data, container = document.getElementById('timeline')) {
container.innerHTML = '';
data.supported.forEach(item => {
const event = document.createElement('div');
event.className = 'event';
event.innerHTML = `
<div class="event-date">${formatDate(item.date)}</div>
<div>
<span class="event-browser">${item.browser}</span>
<span class="event-version">v${item.version}</span>
</div>
`;
container.appendChild(event);
});
if (data.notSupported.length > 0) {
const notSupportedDiv = document.createElement('div');
notSupportedDiv.className = 'not-supported';
notSupportedDiv.innerHTML = `
<strong>Not Supported:</strong> ${data.notSupported.join(', ')}
`;
container.appendChild(notSupportedDiv);
}
}
function renderErrorMessage(message) {
const timeline = document.getElementById('timeline');
timeline.innerHTML = `
<div class="error" style="display: block;">
Error: ${message}
</div>
`;
}
// Initialize the app
async function init() {
allFiles = (await fetchAllFiles('mdn/browser-compat-data', 'api')).map(file => file.path.split(".json")[0]);
setupAutocomplete();
// Check for hash in URL and load that file if present
const hashPath = getHashPath();
if (hashPath) {
document.getElementById('search-input').value = hashPath;
fetchBrowserCompatData(hashPath);
}
}
// Handle back/forward navigation
window.addEventListener('popstate', (event) => {
const hashPath = getHashPath();
if (hashPath) {
document.getElementById('search-input').value = hashPath;
fetchBrowserCompatData(hashPath);
} else {
clearDisplay();
}
});
init();
</script>
</body>
</html>