<?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>21538</bug_id>
          
          <creation_ts>2008-10-10 17:19:49 -0700</creation_ts>
          <short_desc>Transitions between apparently matching transform values don&apos;t always work</short_desc>
          <delta_ts>2008-10-10 17:36:02 -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>Layout and Rendering</component>
          <version>528+ (Nightly build)</version>
          <rep_platform>Mac</rep_platform>
          <op_sys>OS X 10.5</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>FIXED</resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords></keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Simon Fraser (smfr)">simon.fraser</reporter>
          <assigned_to name="Simon Fraser (smfr)">simon.fraser</assigned_to>
          <cc>cmarrin</cc>
    
    <cc>dino</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>94957</commentid>
    <comment_count>0</comment_count>
    <who name="Simon Fraser (smfr)">simon.fraser</who>
    <bug_when>2008-10-10 17:19:49 -0700</bug_when>
    <thetext>Sometimes, transitions between different values of -webkit-transform don&apos;t work, even when they appear that they should.

The problem is that the TransformOperations blendFunc() is changing the transform ops list out from under us; it is inserting identity operations in place of other operations that happen to be identity (like &quot;rotate(0)&quot;). Because of this, the transform operation lists in the old and new states no longer match by type, and the transition fails to run.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>94959</commentid>
    <comment_count>1</comment_count>
      <attachid>24285</attachid>
    <who name="Simon Fraser (smfr)">simon.fraser</who>
    <bug_when>2008-10-10 17:24:37 -0700</bug_when>
    <thetext>Created attachment 24285
Patch, testcase, changelog</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>94961</commentid>
    <comment_count>2</comment_count>
      <attachid>24285</attachid>
    <who name="Darin Adler">darin</who>
    <bug_when>2008-10-10 17:25:59 -0700</bug_when>
    <thetext>Comment on attachment 24285
Patch, testcase, changelog

r=me</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>94963</commentid>
    <comment_count>3</comment_count>
    <who name="Simon Fraser (smfr)">simon.fraser</who>
    <bug_when>2008-10-10 17:35:36 -0700</bug_when>
    <thetext>	M	WebCore/ChangeLog
	M	WebCore/page/animation/AnimationBase.cpp
	M	LayoutTests/ChangeLog
	A	LayoutTests/transitions/matched-transform-functions.html
	A	LayoutTests/transitions/matched-transform-functions-expected.txt
r37496 = 72df8f02cd52c2446f5196f55b0af4e069d8d817 (trunk)
</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>94964</commentid>
    <comment_count>4</comment_count>
    <who name="Simon Fraser (smfr)">simon.fraser</who>
    <bug_when>2008-10-10 17:35:45 -0700</bug_when>
    <thetext>Fooey</thetext>
  </long_desc>
      
          <attachment
              isobsolete="0"
              ispatch="1"
              isprivate="0"
          >
            <attachid>24285</attachid>
            <date>2008-10-10 17:24:37 -0700</date>
            <delta_ts>2008-10-10 17:25:59 -0700</delta_ts>
            <desc>Patch, testcase, changelog</desc>
            <filename>21538_patch.txt</filename>
            <type>text/plain</type>
            <size>5093</size>
            <attacher name="Simon Fraser (smfr)">simon.fraser</attacher>
            
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<flag name="review"
          id="11061"
          type_id="1"
          status="+"
          setter="darin"
    />
          </attachment>
      

    </bug>

</bugzilla>