Open Bug 1949949 Opened 1 day ago Updated 23 hours ago

Event.screen{X,Y} are wrong after dispatch on hidpi screens

Categories

(Core :: DOM: Events, defect)

defect

Tracking

()

Tracking Status
firefox-esr128 --- unaffected
firefox135 --- unaffected
firefox136 ? affected
firefox137 ? affected

People

(Reporter: emilio, Unassigned, NeedInfo)

References

(Regression)

Details

(Keywords: regression)

Attachments

(1 file)

Attached file test-case

See bug 1949890. This is the root cause.

Set release status flags based on info from the regressing bug 1931692

:masayuki, since you are the author of the regressor, bug 1931692, could you take a look? Also, could you set the severity field?

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[Tracking Requested - why for this release]: Can cause correctness issues very easily.

FWIW I am very confused about the set-up. WidgetEvent::Duplicate doesn't copy mWidget, so mRefPoint ends up being wrong. But then we try to fix it in there, but we still have a pres context so we get the wrong CSS scale... I think?

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