Bug 43818

Summary: Lots of overlapping highlights painted when selecting MathML
Product: WebKit Reporter: David Kilzer (:ddkilzer) <ddkilzer>
Component: MathMLAssignee: Nobody <webkit-unassigned>
Status: NEW    
Severity: Normal CC: bdakin, donggwan.kim, fred.wang, mrobinson, sausset
Priority: P2 Keywords: HasReduction
Version: 528+ (Nightly build)   
Hardware: All   
OS: All   
See Also: https://bugs.webkit.org/show_bug.cgi?id=20229
Attachments:
Description Flags
Test case
none
testcase ::selection none

David Kilzer (:ddkilzer)
Reported 2010-08-10 17:18:07 PDT
Created attachment 64056 [details] Test case * SUMMARY When selecting MathML, the selection highlights overlap quite a bit such that the formulae aren't readable after selecting them. * STEPS TO REPRODUCE 1. Open the test case in a WebKit nightly build. 2. Hit Cmd-A to select all text on the page. * RESULTS Selection highlights overlap on many of the formulae so that it's impossible to read them while highlighted. * REGRESSION N/A
Attachments
Test case (6.80 KB, application/xhtml+xml)
2010-08-10 17:18 PDT, David Kilzer (:ddkilzer) 		no flags
Details
testcase ::selection (3.16 KB, text/html)
2013-08-06 02:25 PDT, Frédéric Wang (:fredw) 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Frédéric Wang (:fredw)
Comment 1 2013-05-04 22:48:45 PDT
I suspect this is a consequence of the implementation design to base the rendering on the existing HTML renderer. See http://ojanvafai.com/post/mathml-in-webkit for an alternative.
Frédéric Wang (:fredw)
Comment 2 2013-08-06 02:25:56 PDT
Created attachment 208177 [details] testcase ::selection (In reply to comment #1) > I suspect this is a consequence of the implementation design to base the rendering on the existing HTML renderer. See http://ojanvafai.com/post/mathml-in-webkit for an alternative. An idea to fix (or improve) that with the current model: try to set ::selection { background: transparent; } on anonymous renderers. As an example, I attach a testcase that removes the selection background on MathML elements (not sure the rule reaches the anonymous renderers, so that should be done at the C++ level).
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