mirror of
https://github.com/nlepage/go-wasm-http-server.git
synced 2025-03-11 01:29:11 +00:00
58 lines
1.8 KiB
HTML
58 lines
1.8 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<title>go-wasm-http-server hello sse demo</title>
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<script>
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navigator.serviceWorker.register('sw.js')
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.then(registration => {
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const serviceWorker = registration.installing ?? registration.waiting ?? registration.active
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if (serviceWorker.state === 'activated') {
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document.querySelector('#open-button').disabled = false
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} else {
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serviceWorker.addEventListener('statechange', e => {
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if (e.target.state === 'activated') {
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document.querySelector('#open-button').disabled = false
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}
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})
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}
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})
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window.addEventListener('DOMContentLoaded', () => {
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let es;
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document.querySelector('#open-button').addEventListener('click', () => {
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if (es && es.readyState === es.OPEN) return
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es = new EventSource('api/events')
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es.addEventListener('ping', (e) => {
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const li = document.createElement('li')
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li.textContent = `ping: data=${e.data}`
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document.querySelector('ul').append(li)
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})
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})
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document.querySelector('#close-button').addEventListener('click', () => {
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if (!es) return
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es.close()
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})
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document.querySelector('#clear-button').addEventListener('click', () => {
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document.querySelector('ul').innerHTML = ''
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})
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window.addEventListener('unload', () => {
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if (!es) return
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es.close()
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})
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})
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</script>
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</head>
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<body>
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<p>
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<button id="open-button" disabled>Open event source</button>
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<button id="close-button">Close event source</button>
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<button id="clear-button">Clear events</button>
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</p>
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<ul></ul>
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</body>
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</html>
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