Bug 233583 – Plumb raw platform scrolling deltas along in wheel events

• Component: New Bugs
• Status: RESOLVED FIXED

[Tim Horton]

Plumb raw platform scrolling deltas along in wheel events

[Tim Horton]

Created attachment 445319 [details]
Patch

[Simon Fraser (smfr)]

Comment on attachment 445319 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=445319&action=review

> Source/WebKit/Shared/mac/WebEventFactory.mm:436
> +        return { WebCore::FloatSize(-IOHIDEventGetFloatValue(ioHIDEvent.get(), kIOHIDEventFieldScrollX), -IOHIDEventGetFloatValue(ioHIDEvent.get(), kIOHIDEventFieldScrollY)) };

Does the negation here mean that m_rawPlatformDelta has the same sign as scrollingDelta?

[Tim Horton]

(In reply to Simon Fraser (smfr) from comment #2)
> Comment on attachment 445319 [details]
> Patch
> 
> View in context:
> https://bugs.webkit.org/attachment.cgi?id=445319&action=review
> 
> > Source/WebKit/Shared/mac/WebEventFactory.mm:436
> > +        return { WebCore::FloatSize(-IOHIDEventGetFloatValue(ioHIDEvent.get(), kIOHIDEventFieldScrollX), -IOHIDEventGetFloatValue(ioHIDEvent.get(), kIOHIDEventFieldScrollY)) };
> 
> Does the negation here mean that m_rawPlatformDelta has the same sign as
> scrollingDelta?

That was the idea, but let me double check that I got that right, so many things are in opposing signs :)

[Tim Horton]

Created attachment 445337 [details]
Patch

[Tim Horton]

Created attachment 445346 [details]
Patch

[Tim Horton]

Created attachment 445347 [details]
Patch

[Tim Horton]

(In reply to Tim Horton from comment #3)
> (In reply to Simon Fraser (smfr) from comment #2)
> > Comment on attachment 445319 [details]
> > Patch
> > 
> > View in context:
> > https://bugs.webkit.org/attachment.cgi?id=445319&action=review
> > 
> > > Source/WebKit/Shared/mac/WebEventFactory.mm:436
> > > +        return { WebCore::FloatSize(-IOHIDEventGetFloatValue(ioHIDEvent.get(), kIOHIDEventFieldScrollX), -IOHIDEventGetFloatValue(ioHIDEvent.get(), kIOHIDEventFieldScrollY)) };
> > 
> > Does the negation here mean that m_rawPlatformDelta has the same sign as
> > scrollingDelta?
> 
> That was the idea, but let me double check that I got that right, so many
> things are in opposing signs :)

yes, that is the outcome

[EWS]

Committed r286270 (244631@main): <https://commits.webkit.org/244631@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 445347 [details].

[Radar WebKit Bug Importer]

<rdar://problem/85839550>

[Tim Horton]

Build fix: https://trac.webkit.org/changeset/286277/webkit