Bug 272273 – Remove unused API function `hasNonEmptyBox` added in 49632@main for Chromium port

• Component: Forms
• Status: RESOLVED FIXED

[Ahmad Saleem]

Hi Team,

While doing 275976@main, I tried to remove but got comment that it should be done later.

I tried to see if it leads to any test failure - I was under the impressions that it would progress `bug 31496` based on comment https://bugs.webkit.org/show_bug.cgi?id=31496#c7 , although it started to work without removing this code in STP191 so my fix to deal with edge case `275976@main` fixed it.

NOTE - I have tried to come up with test by adding `display: contents` or `display: content` around <a> to see if it leads without renderer to cause test failure but it didn't.

`Purpose: 1. WebElement::isVisible — tells whether a DOM element is visible (defined as 'has a layout with a non-empty bounding box').` [We don't have such use case and Blink also removed this code as well].

Now back to main topic why this is unused.

It was added by bug 37625 and it was for Chromium port originally in Node.cpp|h but later it was moved to HTMLAnchorElement.cpp.

https://github.com/WebKit/WebKit/commit/558a9e8febda68a0a49ccc98a21287660b38c1bc

NOTE - in previous attempt in 275976@main, it didn't lead to any test failure as well, so I think we can delete it without any repercussions.

Just raising to get input so I can do without any test to something since we never had used it.

Thanks!

[Ryosuke Niwa]

HTMLAnchorElement::isKeyboardFocusable seems to be using that function?

[Ahmad Saleem]

(In reply to Ryosuke Niwa from comment #1)
> HTMLAnchorElement::isKeyboardFocusable seems to be using that function?

It is relic from Chromium use case (https://bugs.webkit.org/show_bug.cgi?id=31496#c7), which we kept and removing it - does not lead to any test regressions.

[Ryosuke Niwa]

(In reply to Ahmad Saleem from comment #2)
> (In reply to Ryosuke Niwa from comment #1)
> > HTMLAnchorElement::isKeyboardFocusable seems to be using that function?
> 
> It is relic from Chromium use case
> (https://bugs.webkit.org/show_bug.cgi?id=31496#c7), which we kept and
> removing it - does not lead to any test regressions.

That doesn't mean we can just remove the code.

[Ahmad Saleem]

(In reply to Ryosuke Niwa from comment #3)
> (In reply to Ahmad Saleem from comment #2)
> > (In reply to Ryosuke Niwa from comment #1)
> > > HTMLAnchorElement::isKeyboardFocusable seems to be using that function?
> > 
> > It is relic from Chromium use case
> > (https://bugs.webkit.org/show_bug.cgi?id=31496#c7), which we kept and
> > removing it - does not lead to any test regressions.
> 
> That doesn't mean we can just remove the code.

I shared wrong link - https://bugs.webkit.org/show_bug.cgi?id=37625 , this added it.

[Radar WebKit Bug Importer]

<rdar://problem/126395865>

[Ryosuke Niwa]

Pull request: https://github.com/WebKit/WebKit/pull/35092

[EWS]

Committed 285065@main (d2369dc2b1b7): <https://commits.webkit.org/285065@main>

Reviewed commits have been landed. Closing PR #35092 and removing active labels.