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gh-128627: Fix iPad detection in wasm-gc #135388

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Merged
merged 2 commits into from
Jun 12, 2025
Merged

gh-128627: Fix iPad detection in wasm-gc #135388

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486bd2b
Fix iPad detection in wasm-gc
ryanking13 Jun 11, 2025
35b6c64
Add a comment about why this special case is needed.
freakboy3742 Jun 12, 2025
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8 changes: 7 additions & 1 deletion Python/emscripten_trampoline.c
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Original file line number Diff line number Diff line change
Expand Up @@ -71,7 +71,13 @@ EM_JS(CountArgsFunc, _PyEM_GetCountArgsPtr, (), {
// )

function getPyEMCountArgsPtr() {
let isIOS = globalThis.navigator && /iPad|iPhone|iPod/.test(navigator.platform);
let isIOS = globalThis.navigator && (
/iPad|iPhone|iPod/.test(navigator.userAgent) ||
// Starting with iPadOS 13, iPads might send a platform string that looks like a desktop Mac.
// To differentiate, we check if the platform is 'MacIntel' (common for Macs and newer iPads)
// AND if the device has multi-touch capabilities (navigator.maxTouchPoints > 1)
(navigator.platform === 'MacIntel' && typeof navigator.maxTouchPoints !== 'undefined' && navigator.maxTouchPoints > 1)
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duplicated same-comment here: pyodide/pyodide#5695 (review)

)
if (isIOS) {
return 0;
}
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