Bug 156550

Summary: Text on compositing layer with negative letter-spacing is truncated.
Product: WebKit Reporter: alan <zalan>
Component: Layout and RenderingAssignee: alan <zalan>
Status: RESOLVED FIXED    
Severity: Normal CC: commit-queue, esprehn+autocc, glenn, koivisto, kondapallykalyan, simon.fraser, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
See Also: https://bugs.webkit.org/show_bug.cgi?id=263959
Attachments:
Description Flags
Patch
none
Patch none

alan
Reported 2016-04-13 12:42:20 PDT
Visual overflow for the negative letter-spacing is not computed properly so we end up with a narrow layer for the text.
Attachments
Patch (6.84 KB, patch)
2016-04-13 12:51 PDT, alan 		no flags
DetailsFormatted DiffDiff
Patch (6.93 KB, patch)
2016-04-13 14:09 PDT, alan 		no flags
DetailsFormatted DiffDiff
Show Obsolete (1) View All Add attachment proposed patch, testcase, etc.
alan
Comment 1 2016-04-13 12:42:53 PDT
rdar://problem/24212140
alan
Comment 2 2016-04-13 12:51:29 PDT
Created attachment 276345 [details] Patch
Antti Koivisto
Comment 3 2016-04-13 12:54:51 PDT
r=me
Simon Fraser (smfr)
Comment 4 2016-04-13 13:06:20 PDT
Comment on attachment 276345 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=276345&action=review > Source/WebCore/rendering/SimpleLineLayoutFunctions.cpp:68 > +static FloatRect computeOverflow(const RenderBlockFlow& flow, const FloatRect& rect) What is the rect that's passed in? It could use a better name. > Source/WebCore/rendering/SimpleLineLayoutFunctions.cpp:78 > + if (letterSpacing >= 0) > + return overflowRect; > + > + overflowRect.expand(-letterSpacing, 0); Wouldn't this be clearer with a std::max(letterSpacing, 0)?
alan
Comment 5 2016-04-13 14:09:01 PDT
Created attachment 276351 [details] Patch
WebKit Commit Bot
Comment 6 2016-04-13 15:11:39 PDT
Comment on attachment 276351 [details] Patch Clearing flags on attachment: 276351 Committed r199516: <http://trac.webkit.org/changeset/199516>
WebKit Commit Bot
Comment 7 2016-04-13 15:11:43 PDT
All reviewed patches have been landed. Closing bug.
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