Reviewed by Darin Adler.
https://bugs.webkit.org/show_bug.cgi?id=53823
Print layout sometimes seen on screen
<rdar://problem/
8948742> REGRESSION (WebKit2) - When I print a page, I visually see it re-layout
<rdar://problem/
8899389> REGRESSION(WebKit2): Wrong content can appear when print dialog is up
* UIProcess/API/mac/PageClientImpl.mm: (WebKit::PageClientImpl::setAutodisplay): Removed a
branch that didn't do anything useful.
* UIProcess/API/mac/WKPrintingView.h:
* UIProcess/API/mac/WKPrintingView.mm:
(-[WKPrintingView _suspendAutodisplay]):
(-[WKPrintingView _delayedResumeAutodisplayTimerFired]):
(-[WKPrintingView _delayedResumeAutodisplay]):
(-[WKPrintingView knowsPageRange:]):
(-[WKPrintingView beginDocument]):
(-[WKPrintingView endDocument]):
When page setup changes, or when going from print preview to actual printing, AppKit calls
-endDocument just to begin it again. Delay resuming autodisplay until the next run loop
iteration.
* WebProcess/WebCoreSupport/WebChromeClient.cpp:
(WebKit::WebChromeClient::invalidateContentsAndWindow):
(WebKit::WebChromeClient::invalidateContentsForSlowScroll):
Tightened it up from other side - we should never send pixels to UI process while in
printing mode. This is not 100% reliable, because relayout doesn't happen immediately,
and we can still have print layout in screen mode - but it helps.
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@77701
268f45cc-cd09-0410-ab3c-
d52691b4dbfc