[Webkit-unassigned] [Bug 187824] AX: Press tab to highlight items on a webpage is not working with voiceover enabled

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=187824

--- Comment #2 from zalan <zalan at apple.com> ---
Comment on attachment 345390
  --> https://bugs.webkit.org/attachment.cgi?id=345390
patch

View in context: https://bugs.webkit.org/attachment.cgi?id=345390&action=review

> Source/WebCore/dom/Document.cpp:1871
> +            }

Any style mutation with an associated renderer will trigger a RenderElement::setStyle() call. Even mutations that don't need layout. Consulting StyleDifference in setStyle() might be a better way to get the AX cache updated.  
Also you may want to limit the performDeferredCacheUpdate() calls to focusable elements since calling AX cache on every repaint could be a performance hit.

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