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Tweak the isIOS check, in web/viewer_compatibility, to attempt to support newer Safari versions (issue 11245)

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Obviously userAgent checks aren't that great, since it's very easy to spoof, but it probably doesn't hurt to attempt to extend this (since it's limited to `GENERIC` builds).
Besides, anyone using the default viewer can always set the `maxCanvasPixels` option to a value of their choosing.
This commit is contained in:
Jonas Jenwald 2019-10-15 17:14:29 +02:00
parent 16ae7c6960
commit f964cbc961
1 changed files with 7 additions and 1 deletions
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8
web/viewer_compatibility.js
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@ -17,8 +17,14 @@ let compatibilityParams = Object.create(null);
if (typeof PDFJSDev === 'undefined' || PDFJSDev.test('GENERIC')) {
const userAgent =
(typeof navigator !== 'undefined' && navigator.userAgent) || '';
const platform =
(typeof navigator !== 'undefined' && navigator.platform) || '';
const maxTouchPoints =
(typeof navigator !== 'undefined' && navigator.maxTouchPoints) || 1;
const isAndroid = /Android/.test(userAgent);
const isIOS = /\b(iPad|iPhone|iPod)(?=;)/.test(userAgent);
const isIOS = /\b(iPad|iPhone|iPod)(?=;)/.test(userAgent) ||
(platform === 'MacIntel' && maxTouchPoints > 1);
// Limit canvas size to 5 mega-pixels on mobile.
// Support: Android, iOS