NEW 217806
RenderStyle::diff() can return Equal when eventListenerRegionTypes() differ 
https://bugs.webkit.org/show_bug.cgi?id=217806
Summary RenderStyle::diff() can return Equal when eventListenerRegionTypes() differ
Simon Fraser (smfr)
Reported 2020-10-15 20:34:29 PDT
RenderStyle::diff() doesn't consult eventListenerRegionTypes(), so if we every early-return on Equal, we may have bugs. We probably need a new StyleDiff value for this.
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Simon Fraser (smfr)
Comment 1 2020-10-15 20:35:12 PDT
For example RenderElement::styleWillChange() needs to hit layer->invalidateEventRegion().
Radar WebKit Bug Importer
Comment 2 2020-10-22 20:35:18 PDT
<rdar://problem/70601723>
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