Bug 122878 – css rendering bug : fixed-position-element and 'left'

• Component: Layout and Rendering
• Status: NEW

[Ryosuke Niwa]

Consider merging https://chromium.googlesource.com/chromium/blink/+/771dc814b28496295ded1ac67346d774f4ebd608

Fixed position element was rendered as normal flow irrespective of it's relative-position-parents.

if fixed position element does not have left and/or right position then
it should render as normal flow with respect to it's parent.
So fixed position element is shifted with the value of relative position
of it's parent.

[Radar WebKit Bug Importer]

<rdar://problem/99352377>

[Simon Fraser (smfr)]

Created attachment 462017 [details]
Test case

[Ahmad Saleem]

Created attachment 466955 [details]
GitHub Patch Screenshot

I manage to make this Blink patch work but I am sure, I did error because we start regressing some other tests as well.

If someone can help or point me to right direction, it would be great. It although also progresses few failing test cases (Case 11 & Case 12) as well.

[Ahmad Saleem]

It has follow-up bug as well: https://src.chromium.org/viewvc/blink?view=revision&revision=185274

So I think we need to merge both. Hence, my patch might have not worked.

[Ahmad Saleem]

(In reply to Ahmad Saleem from comment #4)
> It has follow-up bug as well:
> https://src.chromium.org/viewvc/blink?view=revision&revision=185274
> 
> So I think we need to merge both. Hence, my patch might have not worked.

GitHub link - https://github.com/chromium/chromium/commit/137fc51c2db76f02cf6b02febc9a537b8af0a0c6

and

https://github.com/chromium/chromium/commit/6e7527943cc3f1e7306e42435708d7ac54cb3171