[Webkit-unassigned] [Bug 221067] Page scrolling by wheel events doesn't work in non-AC mode pages if async scrolling is enabled (WinCairo)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=221067

--- Comment #2 from Fujii Hironori <Hironori.Fujii at sony.com> ---
GTK port disables Threaded Scrolling in the default mode WEBKIT_HARDWARE_ACCELERATION_POLICY_ON_DEMAND.
https://github.com/WebKit/WebKit/blob/409d2a1d7c100ee0b7996b26a3b12ec2207609fc/Source/WebKit/UIProcess/gtk/WebPreferencesGtk.cpp#L49

So, a scrolling tree isn't generated for the page.
https://github.com/WebKit/WebKit/blob/409d2a1d7c100ee0b7996b26a3b12ec2207609fc/Source/WebKit/WebProcess/WebPage/WebPage.cpp#L742

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-unassigned/attachments/20210128/00d580aa/attachment-0001.htm>