mirrors/pdf.js
1
0
Fork 0
mirror of https://github.com/mozilla/pdf.js.git synced 2025-04-22 16:18:08 +02:00
Code Activity

Use the FeatureTest helper in the src/display/font_loader.js file

Browse source
This commit is contained in:
Jonas Jenwald 2025-02-06 20:45:18 +01:00
parent 41a918b0fe
commit 33f3506842
1 changed files with 9 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

26
src/display/font_loader.js
View file

@ -15,6 +15,7 @@
import {
assert,
FeatureTest,
isNodeJS,
shadow,
string32,
@ -176,23 +177,14 @@ class FontLoader {
return shadow(this, "isSyncFontLoadingSupported", true);
}
let supported = false;
if (typeof PDFJSDev === "undefined" || !PDFJSDev.test("CHROME")) {
if (isNodeJS) {
// Node.js - we can pretend that sync font loading is supported.
supported = true;
} else if (
typeof navigator !== "undefined" &&
typeof navigator?.userAgent === "string" &&
// User agent string sniffing is bad, but there is no reliable way to
// tell if the font is fully loaded and ready to be used with canvas.
/Mozilla\/5.0.*?rv:\d+.*? Gecko/.test(navigator.userAgent)
) {
// Firefox, from version 14, supports synchronous font loading.
supported = true;
}
}
return shadow(this, "isSyncFontLoadingSupported", supported);
// Node.js - we can pretend that sync font loading is supported.
// Firefox, from version 14, supports synchronous font loading.
return shadow(
this,
"isSyncFontLoadingSupported",
(typeof PDFJSDev === "undefined" || !PDFJSDev.test("CHROME")) &&
(isNodeJS || FeatureTest.platform.isFirefox)
);
}
_queueLoadingCallback(callback) {