Bug 131805

Summary: [New Multicolumn] Nested columns not working at all.
Product: WebKit Reporter: Dave Hyatt <hyatt>
Component: Layout and RenderingAssignee: Dave Hyatt <hyatt>
Severity: Normal CC: commit-queue, esprehn+autocc, glenn, jonlee, kondapallykalyan, simon.fraser, webkit-bug-importer, WebkitBugTracker
Priority: P2 Keywords: InRadar
Version: 528+ (Nightly build)   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on:    
Bug Blocks: 131825    
Description Flags
Patch dino: review+

Description Dave Hyatt 2014-04-17 13:25:29 PDT
The old multi-column code could at least handle nested columns as an unsplittable unit. The new code should do the same. Right now it is dropping them completely, which will undoubtedly cause regressions in children's books in iBooks.
Comment 1 Radar WebKit Bug Importer 2014-04-17 23:12:56 PDT
Comment 2 Dave Hyatt 2014-04-21 13:43:40 PDT
This is a blocker for turning the new columns on.
Comment 3 Dave Hyatt 2014-04-22 13:22:42 PDT
This is the challenging one. I wish I knew if iBooks depends on this or not.
Comment 4 Dave Hyatt 2014-04-22 16:39:09 PDT
Created attachment 229923 [details]

Work in progress. Everything working now except for transparency. I need to patch bounding box for that to know how to recur.
Comment 5 Dave Hyatt 2014-04-22 18:04:22 PDT
Created attachment 229935 [details]
Comment 6 WebKit Commit Bot 2014-04-22 18:06:19 PDT
Attachment 229935 [details] did not pass style-queue:

ERROR: Source/WebCore/rendering/RenderLayer.h:714:  Weird number of spaces at line-start.  Are you using a 4-space indent?  [whitespace/indent] [3]
ERROR: Source/WebCore/rendering/RenderLayer.cpp:4312:  When wrapping a line, only indent 4 spaces.  [whitespace/indent] [3]
Total errors found: 2 in 6 files

If any of these errors are false positives, please file a bug against check-webkit-style.
Comment 7 Dave Hyatt 2014-04-22 19:28:28 PDT
Created attachment 229945 [details]
Comment 8 Dave Hyatt 2014-04-23 11:06:10 PDT
Fixed in r167714.