Bug 123795

Summary: [CSS Regions] Percent-sized floats are sized relative to the size of the NamedFlowThread instead of the region they are rendered in
Product: WebKit Reporter: Mihai Balan <mibalan>
Component: CSSAssignee: Nobody <webkit-unassigned>
Status: RESOLVED WONTFIX    
Severity: Normal CC: abucur, bfulgham, mihnea, stearns, WebkitBugTracker
Priority: P2 Keywords: AdobeTracked
Version: 528+ (Nightly build)   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on:    
Bug Blocks: 124706    
Attachments:
Description Flags
HTML file highlighting the problem none

Mihai Balan
Reported 2013-11-05 02:27:28 PST
Created attachment 216017 [details] HTML file highlighting the problem When a float that has the size specified with percents is flowed through a region chain with multiple regions, the size of the float is computed relative to the sum of the sizes of the regions instead of the size of the region the float is rendered in.
Attachments
HTML file highlighting the problem (1.74 KB, text/html)
2013-11-05 02:27 PST, Mihai Balan 		no flags
Details
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Mihai Balan
Comment 1 2013-11-05 04:43:23 PST
Must double check for width, too and non-floats, too.
Alan Stearns
Comment 2 2013-11-05 06:31:58 PST
And we should check that when a float is fragmented, each fragment is sized relative to its individual region
Andrei Bucur
Comment 3 2014-05-15 00:16:09 PDT
I've investigated this a bit and it's not very straightforward to implement. The problem here is that the top position of a float depends on the width of a float. For example, a left float will be positioned alongside other left floats as long as it still fits. This means you first need to determine the width and if the float doesn't fit, reposition it below the other floats. This is doable with regions but it implies a multi-step layout and important changes in the code. Instead of computing the width and the positioning the float you: - first need to estimate the top - compute the width in the region at that top offset - if it doesn't fit, move it below the other floats - recompute the width at the new top
Brent Fulgham
Comment 4 2022-07-12 17:19:14 PDT
CSS Regions were removed in Bug 174978.
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