Implement basic column-span support

• Component: CSS
• Status: RESOLVED FIXED

[Dave Hyatt]

Only if the column-span is an immediate child of the multicol block in this first step...

[Dave Hyatt]

Created attachment 56924 [details]
Patch

[WebKit Review Bot]

Attachment 56924 [details] did not pass style-queue:

Failed to run "['WebKitTools/Scripts/check-webkit-style', '--no-squash']" exit_code: 1
WebCore/rendering/RenderBlock.cpp:280:  An else statement can be removed when the prior "if" concludes with a return, break, continue or goto statement.  [readability/control_flow] [4]
WebCore/rendering/RenderBlock.cpp:368:  Tests for true/false, null/non-null, and zero/non-zero should all be done without equality comparisons.  [readability/comparison_to_zero] [5]
Total errors found: 2 in 31 files


If any of these errors are false positives, please file a bug against check-webkit-style.

[Dave Hyatt]

Created attachment 56927 [details]
Patch

[Dave Hyatt]

Created attachment 56965 [details]
Patch

Address Dan's comments, clean up typos in changelog.

[Dave Hyatt]

Created attachment 57001 [details]
Patch

[Dave Hyatt]

Created attachment 57044 [details]
Minor tweak - drop toRenderBlock casts when asking isAnonymousColumnSpanBlock, since I made it a RenderObject method

Comment on attachment 57044 [details]
Minor tweak - drop toRenderBlock casts when asking isAnonymousColumnSpanBlock, since I made it a RenderObject method

WebCore/rendering/RenderBlock.cpp:287
 +          RenderBlock* newBox = 0;
You don’t need to initialize this to 0. Or you could initialize it with a ternary operator.

WebCore/rendering/RenderBlock.cpp:311
 +      RenderBlock* newBox = 0;
Ditto.

Everything else is scary but fine.

r=me

[Dave Hyatt]

Landed in r60201.

[Csaba Osztrogonác]

(In reply to comment #8)
> Landed in r60201.
Buildfix for this patch landed in r60221. ( build without ENABLE(RUBY) )