RESOLVED FIXED 54597
InspectorAgent calls offsetWidth in the middle of painting 
https://bugs.webkit.org/show_bug.cgi?id=54597
Summary InspectorAgent calls offsetWidth in the middle of painting
Simon Fraser (smfr)
Reported Wednesday, February 16, 2011 11:44:19 PM UTC
I just hit this assertion: ASSERTION FAILED: !view() || (!view()->isInLayout() && !view()->isPainting()) /Volumes/InternalData/Development/webkit/OpenSource/Source/WebCore/dom/Document.cpp(1554) : virtual void WebCore::Document::updateStyleIfNeeded() -> WebCore::Document::updateStyleIfNeeded() -> WebCore::Document::updateLayout() -> WebCore::Document::updateLayoutIgnorePendingStylesheets() -> WebCore::Element::offsetWidth() -> WebCore::InspectorAgent::drawElementTitle(WebCore::GraphicsContext&, WebCore::IntRect const&, WebCore::FloatRect const&, WebCore::Settings*) const -> WebCore::InspectorAgent::drawNodeHighlight(WebCore::GraphicsContext&) const -> WebCore::InspectorController::drawNodeHighlight(WebCore::GraphicsContext&) const -> -[WebNodeHighlightView drawRect:] -> -[NSView _drawRect:clip:] -> -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] -> -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] -> -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] -> -[NSNextStepFrame _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] -> -[NSView _displayRectIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:] -> -[NSView displayIfNeeded] -> -[WebNodeHighlight setNeedsUpdateInTargetViewRect:] -> -[WebHTMLView drawSingleRect:] -> -[WebHTMLView drawRect:] -> -[NSView _drawRect:clip:] -> -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] -> -[WebHTMLView(WebPrivate) _recursiveDisplayAllDirtyWithLockFocus:visRect:] -> -[NSView _recursiveDisplaySelfAndDescendantsInRect:] -> -[NSView _recursiveDisplayDescendantsInRect:] -> -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] -> -[NSView _recursiveDisplaySelfAndDescendantsInRect:] -> -[NSView _recursiveDisplayDescendantsInRect:] -> -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] -> -[NSView _recursiveDisplaySelfAndDescendantsInRect:] -> -[NSView _recursiveDisplayDescendantsInRect:] -> -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] -> -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] InspectorAgent::drawElementTitle() does: nodeTitle += String::number(highlightedElement ? highlightedElement->offsetWidth() : boundingBox.width()); Calling offsetWidth in the middle of painting is not allowed, because it can cause layout to happen.
Attachments
Patch (5.13 KB, patch)
2011-02-26 07:03 PST, Pavel Feldman 		no flags
DetailsFormatted DiffDiff
View All Add attachment proposed patch, testcase, etc.
Pavel Feldman
Comment 1 Saturday, February 26, 2011 3:03:13 PM UTC
Created attachment 83938 [details] Patch
Pavel Feldman
Comment 2 Monday, February 28, 2011 11:24:19 AM UTC
Comment on attachment 83938 [details] Patch Clearing flags on attachment: 83938 Committed r79850: <http://trac.webkit.org/changeset/79850>
Pavel Feldman
Comment 3 Monday, February 28, 2011 11:24:27 AM UTC
All reviewed patches have been landed. Closing bug.
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