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Fix a race condition in the HTML renderer where text could get measured and cached before font had loaded

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This commit is contained in:
Nic Barker 2024-09-16 21:28:23 +12:00
parent 837a8d442a
commit e0ca1a2e49
1 changed files with 13 additions and 0 deletions
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13
examples/clay-official-website/index.html
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@ -13,6 +13,7 @@
padding: 0; padding: 0;
margin: 0; margin: 0;
pointer-events: none; pointer-events: none;
background: rgb(244, 235, 230);
} }
/* Import the font using @font-face */ /* Import the font using @font-face */
@font-face { @font-face {
@ -213,6 +214,18 @@
instance.exports.Clay_CreateArenaWithCapacityAndMemory(arenaStructAddress, memorySize, arenaMemoryAddress); instance.exports.Clay_CreateArenaWithCapacityAndMemory(arenaStructAddress, memorySize, arenaMemoryAddress);
} }
async function init() { async function init() {
await new Promise((resolve, reject) => {
// repeatedly poll check
const poller = setInterval(async () => {
await Promise.all(fontsById.map(f => document.fonts.load(`12px "${f}"`)));
console.log(`12px "${fontsById[0]}"`);
if (document.fonts.check(`12px "${fontsById[0]}"`)) {
clearInterval(poller);
resolve(true);
}
}, 10);
setTimeout(() => {clearInterval(poller); resolve()}, 1000);
});
window.htmlRoot = document.body.appendChild(document.createElement('div')); window.htmlRoot = document.body.appendChild(document.createElement('div'));
window.canvasRoot = document.body.appendChild(document.createElement('canvas')); window.canvasRoot = document.body.appendChild(document.createElement('canvas'));
window.canvasContext = window.canvasRoot.getContext("2d"); window.canvasContext = window.canvasRoot.getContext("2d");