Bug 198364
| Summary: | [Async overflow scrolling] Backing store attachment logic for composited-inside-scroller needs to account for non-ancestor scrollers | ||
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| Product: | WebKit | Reporter: | Simon Fraser (smfr) <simon.fraser> |
| Component: | Scrolling | Assignee: | Nobody <webkit-unassigned> |
| Status: | NEW | ||
| Severity: | Normal | CC: | koivisto, simon.fraser, thorton, webkit-bug-importer, zalan |
| Priority: | P2 | Keywords: | InRadar |
| Version: | WebKit Nightly Build | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| See Also: | https://bugs.webkit.org/show_bug.cgi?id=198363 | ||
Simon Fraser (smfr)
We generally inflate the coverage rect for composited scrollers (e.g. bug 198363) so that composited descendants get backing store attachment before they are scrolled into view.
However, with a non-stacking context scrollers, descendants don't see the scroller's coverage rect, so we need another way to inflate their coverage.
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Radar WebKit Bug Importer
<rdar://problem/51248288>