Bug 119393 - [CSS Regions] Margins are not correctly computed in regions with mixed widths
Summary: [CSS Regions] Margins are not correctly computed in regions with mixed widths
Status: RESOLVED WONTFIX
Alias: None
Product: WebKit
Classification: Unclassified
Component: Layout and Rendering (show other bugs)
Version: 528+ (Nightly build)
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords: AdobeTracked
Depends on:
Blocks: 57312 74131
  Show dependency tree / graph
 
Reported: 2013-08-01 05:46 PDT by Simon Pena
Modified: 2022-07-13 09:24 PDT (History)
4 users (show)

See Also:

Attachments
LayoutTest proposal (816 bytes, application/x-gzip)
2013-08-01 05:46 PDT, Simon Pena 		no flags Details
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Simon Pena 2013-08-01 05:46:06 PDT 
Created attachment 207918 [details]
LayoutTest proposal

(This shares the same preconditions as bug #74131)

If you have an element in a region with a percentage margin, and the region is followed by another region with a larger width, the size and margin calculations are using the widest region in the flow, then moving and clipping for display in the first region. As a result, using getComputedStyle to retrieve these margins fails, giving the original values which used the widest region in the flow.

I created a test, starting from the one attached in bug #74131 and modifying it to incorporate the logic from http://trac.webkit.org/browser/trunk/LayoutTests/fast/css/getComputedStyle/getComputedStyle-margin-percentage.html. It can be seen how the test passes once we remove the second region with the larger width.
Comment 1 Brent Fulgham 2022-07-13 09:24:07 PDT 
CSS Regions were removed in Bug 174978.