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This patch extracts two additional CompositorHitTestInfo flags from the eDispatchToContent flag; eApzAwareListeners for elements that have APZ-aware listeners, and eInactiveScrollframe for inactive scrollframe or unlayerized scrollthumbs. The eDispatchToContent is then renamed to eIrregularArea to reflect the fact that it is used for irregular-shaped areas that require main-thread hit-testing. Additionally, it is important to note that when using the non-WebRender codepath, all three of these flags still end up gettings squashed into the "dispatch to content" region on the EventRegions; when APZ reconstructs a CompositorHitTestInfo it will turn anything in this region back into an eIrregularArea. So this is a lossy round-trip conversion for the non-WebRender case. However it should still result in correct behaviour because the semantics of eIrregularArea result in APZ relying on the main-thread to do hit-testing and so any APZ-aware listeners and inactive scrollframes are also handled by the main-thread. Differential Revision: https://phabricator.services.mozilla.com/D26440 --HG-- extra : moz-landing-system : lando |
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