Incorrect text selection when crossing flex item boundary

• Component: Layout and Rendering
• Status: RESOLVED FIXED

[zalan]

<rdar://59487603>

[zalan]

Created attachment 430307 [details]
Patch

[zalan]

Will look into the EWS results whether they are actual failures.

[Simon Fraser (smfr)]

Comment on attachment 430307 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=430307&action=review

> Source/WebCore/rendering/RenderBlock.cpp:2260
> +            if (is<RenderBlockFlow>(renderer))
> +                logicalBottom += downcast<RenderBlockFlow>(renderer).lowestFloatLogicalBottom();

Since you will be blamed for this now, maybe look into the history of why it's this way, and add a FIXME if we think it's wrong.

> Source/WebCore/rendering/RenderBlock.cpp:2264
> +        if (pointInLogicalContents.y() > logicalBottomForCandidateBox || (!blocksAreFlipped && pointInLogicalContents.y() == logicalBottomForCandidateBox))

The `pointInLogicalContents.y() == logicalBottomForCandidateBox` test is very confusing here.

[zalan]

Created attachment 430433 [details]
Patch

[zalan]

> View in context:
> https://bugs.webkit.org/attachment.cgi?id=430307&action=review
> 
> > Source/WebCore/rendering/RenderBlock.cpp:2260
> > +            if (is<RenderBlockFlow>(renderer))
> > +                logicalBottom += downcast<RenderBlockFlow>(renderer).lowestFloatLogicalBottom();
> 
> Since you will be blamed for this now, maybe look into the history of why
> it's this way, and add a FIXME if we think it's wrong.
> 
fixed in https://trac.webkit.org/changeset/278379/webkit

[Simon Fraser (smfr)]

Comment on attachment 430433 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=430433&action=review

> Source/WebCore/rendering/RenderBlock.cpp:2188
> +    if (isTable() || isFlexibleBoxIncludingDeprecated() || isRenderGrid())

Should you add grid and deprecated flex box tests?

[zalan]

Created attachment 430478 [details]
Patch

[zalan]

Created attachment 430481 [details]
[fast-cq] Patch

[EWS]

Committed r278411 (238436@main): <https://commits.webkit.org/238436@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 430481 [details].

[Radar WebKit Bug Importer]

<rdar://problem/78825560>