1890531 - Remove automatic adjustment for "centered operators"

Status: RESOLVED FIXED

(Core :: MathML, enhancement)

Description

[Frédéric Wang (:fredw)]

See https://searchfox.org/mozilla-central/source/layout/mathml/nsMathMLmoFrame.cpp#148

This seems to be an old hack for non-math fonts, so let's try and remove it.

Comment 1

[Frédéric Wang (:fredw)]

Attachment: Bug 1890531 - Remove automatic adjustment for "centered operators". r=emilio

This is a work around for fonts that are not math-aware, making sure
that some basic binary operators (+, =, <, etc) are vertically centered
on the math axis. This is not defined in MathML Core and MathML
rendering with non-math fonts is likely to be bad anyway, so let's
try and remove this by placing support under a disabled-by-default
runtime flag.

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/9a6da69b8383
Remove automatic adjustment for "centered operators". r=emilio

Comment 3

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Created web-platform-tests PR https://github.com/web-platform-tests/wpt/pull/45645 for changes under testing/web-platform/tests

Comment 4

[Cosmin Sabou [:CosminS]]

https://hg.mozilla.org/mozilla-central/rev/9a6da69b8383

Comment 5

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Upstream PR merged by moz-wptsync-bot

Comment 6

[Vadim Makeev]

It’s mentioned in the 126 release notes: https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/126#mathml