<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>43818</bug_id>
          
          <creation_ts>2010-08-10 17:18:07 -0700</creation_ts>
          <short_desc>Lots of overlapping highlights painted when selecting MathML</short_desc>
          <delta_ts>2024-03-11 15:20:18 -0700</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>MathML</component>
          <version>528+ (Nightly build)</version>
          <rep_platform>All</rep_platform>
          <op_sys>All</op_sys>
          <bug_status>NEW</bug_status>
          <resolution></resolution>
          
          <see_also>https://bugs.webkit.org/show_bug.cgi?id=20229</see_also>
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords>HasReduction</keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="David Kilzer (:ddkilzer)">ddkilzer</reporter>
          <assigned_to name="Nobody">webkit-unassigned</assigned_to>
          <cc>bdakin</cc>
    
    <cc>donggwan.kim</cc>
    
    <cc>fred.wang</cc>
    
    <cc>mrobinson</cc>
    
    <cc>sausset</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>262917</commentid>
    <comment_count>0</comment_count>
      <attachid>64056</attachid>
    <who name="David Kilzer (:ddkilzer)">ddkilzer</who>
    <bug_when>2010-08-10 17:18:07 -0700</bug_when>
    <thetext>Created attachment 64056
Test case

* SUMMARY
When selecting MathML, the selection highlights overlap quite a bit such that the formulae aren&apos;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&apos;s impossible to read them while highlighted.

* REGRESSION
N/A</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>884697</commentid>
    <comment_count>1</comment_count>
    <who name="Frédéric Wang Nélar">fred.wang</who>
    <bug_when>2013-05-04 22:48:45 -0700</bug_when>
    <thetext>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.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>914810</commentid>
    <comment_count>2</comment_count>
      <attachid>208177</attachid>
    <who name="Frédéric Wang Nélar">fred.wang</who>
    <bug_when>2013-08-06 02:25:56 -0700</bug_when>
    <thetext>Created attachment 208177
testcase ::selection

(In reply to comment #1)
&gt; 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).</thetext>
  </long_desc>
      
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            <date>2010-08-10 17:18:07 -0700</date>
            <delta_ts>2010-08-10 17:18:07 -0700</delta_ts>
            <desc>Test case</desc>
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            <attachid>208177</attachid>
            <date>2013-08-06 02:25:56 -0700</date>
            <delta_ts>2013-08-06 02:25:56 -0700</delta_ts>
            <desc>testcase ::selection</desc>
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            <size>3239</size>
            <attacher name="Frédéric Wang Nélar">fred.wang</attacher>
            
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          </attachment>
      

    </bug>

</bugzilla>