RESOLVED FIXED115792
Coalesce WKView visibleRect changes 
https://bugs.webkit.org/show_bug.cgi?id=115792
Summary Coalesce WKView visibleRect changes
Tim Horton
Reported 2013-05-08 03:34:11 PDT
AppKit can fiddle with the visibleRect a *lot* and call renewGState a *lot* during autolayout. We need to wait until it's settled down to inform the WebProcess of the new visibleRect, especially because in some particular cases, waiting until autolayout is done means the visibleRect doesn't change *at all*, and we can skip tons and tons of work that we would previously have done. <rdar://problem/13776842>
Attachments
patch (5.18 KB, patch)
2013-05-08 12:10 PDT, Tim Horton 		simon.fraser: review+
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Tim Horton
Comment 1 2013-05-08 12:10:18 PDT
Created attachment 201091 [details] patch
Simon Fraser (smfr)
Comment 2 2013-05-08 12:15:13 PDT
Comment on attachment 201091 [details] patch View in context: https://bugs.webkit.org/attachment.cgi?id=201091&action=review > Source/WebKit2/UIProcess/WebPageProxy.cpp:637 > + if (m_sendViewExposedRectChangedTimer.isActive()) > + m_sendViewExposedRectChangedTimer.stop(); Can't you unconditionally call stop? > Source/WebKit2/UIProcess/WebPageProxy.h:1272 > + WebCore::Timer<WebPageProxy> m_sendViewExposedRectChangedTimer; Hard to parse this name. How about m_exposedRectChangedTimer? > Source/WebKit2/UIProcess/WebPageProxy.h:1274 > + WebCore::FloatRect m_lastSentViewExposedRect; m_lastExposedRect?
Tim Horton
Comment 3 2013-05-08 13:02:10 PDT
http://trac.webkit.org/changeset/149761
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