<?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>44187</bug_id>
          
          <creation_ts>2010-08-18 10:53:04 -0700</creation_ts>
          <short_desc>Extend the layoutTestController to support dumping HostWindow methods to log invalidations</short_desc>
          <delta_ts>2010-08-18 10:54:16 -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>Tools / Tests</component>
          <version>528+ (Nightly build)</version>
          <rep_platform>All</rep_platform>
          <op_sys>All</op_sys>
          <bug_status>NEW</bug_status>
          <resolution></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="Darin Fisher (:fishd, Google)">fishd</reporter>
          <assigned_to name="Darin Fisher (:fishd, Google)">fishd</assigned_to>
          
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>266241</commentid>
    <comment_count>0</comment_count>
    <who name="Darin Fisher (:fishd, Google)">fishd</who>
    <bug_when>2010-08-18 10:53:04 -0700</bug_when>
    <thetext>Following on from bug 42949, there should be a way to write a layout test
that can verify that the correct invalidation is generated after scrolling
a page containing fixed position elements.

The repaint test framework is not a great option since the actual repainting
done is fairly platform specific.  For example, some platforms will coalesce
invalidations into a smaller set of invalidations.  Or, if scrolling overlaps
with invalidation, some platforms may combine those operations in distinct ways.

Instead, it seems like it would be useful to have a way to log HostWindow methods
like invalidateContentsAndWindow, invalidateContentsForSlowScroll, and scroll.</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>