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import { notifyManager, useQuery } from '@tanstack/solid-query'
import { createSignal } from 'solid-js'
import { QueryBoundary } from '~/components/query-boundary'
function sleep(milliseconds: number) {
return new Promise((res) => setTimeout(res, milliseconds))
}
function spin(milliseconds: number) {
const start = performance.now()
while (performance.now() - start <= milliseconds) {
// do nothing
}
}
async function sayHello(name: string) {
console.info('[api] sayHello.start')
await sleep(500)
// make the layout shift more obvious, it doesn't always happen
console.time('[api] sayHello.spin')
spin(20)
console.timeEnd('[api] sayHello.spin')
console.info('[api] sayHello.end')
return `Hello ${name}`
}
export default function BatchMethods() {
const [count, setCount] = createSignal(0)
const hello = useQuery(() => ({
queryKey: ['hello', count()] as const,
queryFn: ({ queryKey: [_, count] }) => sayHello(`solid ${count}`),
}))
return (
<div>
<select
value="timer"
ref={(el) => (el.value = 'timer')} // browser caches form input
onInput={(e) => {
const type = e.currentTarget.value
if (type === 'raf') notifyManager.setScheduler(requestAnimationFrame)
if (type === 'tick') notifyManager.setScheduler(queueMicrotask)
if (type === 'timer')
notifyManager.setScheduler((cb) => setTimeout(cb, 0))
}}
>
<option value="raf">requestAnimationFrame</option>
<option value="timer">setTimeout</option>
<option value="tick">queueMicrotick</option>
</select>
<button class="increment" onClick={() => setCount((x) => x + 1)}>
Clicks: {count()}
</button>
<p>
<QueryBoundary loadingFallback={'Loading...'} query={hello}>
{(data) => <div style={{ 'background-color': 'aqua' }}>{data}</div>}
</QueryBoundary>
</p>
<div style={{ 'background-color': 'red' }}>
Something below to demonstrate layout shift
</div>
<p>
Due to the way solidjs handles updates, sometimes the updating of a
query results in DOM modifications triggering a rerender twice. This is
perceived as a glitch in the layout of the webpage that usually lasts
for one frame. By using another batching strategy in the browser,
instead of the default setTimeout one, we can mitigate this issue. Try
out requestAnimationFrame or queueMicrotick.
</p>
</div>
)
}
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