Summary: | REGRESSION(r253360): [GTK] Page becomes blank during the back/forward gesture animation if loading triggers PSON | ||
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Product: | WebKit | Reporter: | Alice Mikhaylenko <alicem> |
Component: | WebKitGTK | Assignee: | Nobody <webkit-unassigned> |
Status: | NEW --- | ||
Severity: | Normal | CC: | bugs-noreply, cassidy, cedric.bellegarde, mcatanzaro |
Priority: | P2 | ||
Version: | WebKit Nightly Build | ||
Hardware: | Unspecified | ||
OS: | Unspecified | ||
See Also: | https://bugs.webkit.org/show_bug.cgi?id=205650 |
Description
Alice Mikhaylenko
2019-12-30 13:23:06 PST
Well this seems bad. I guess it's related, while loading a new page, WebKitGTK randomly flashes. https://www.youtube.com/watch?v=BU0ScSair84 Not really, this is only about the gesture. During the gesture we show the current page (as it is) sliding away or being there while another sheet slides over it, and that other sheet is a static screenshot. After the gesture is done, the actual page is completely invisible, and we show the screenshot only and wait until the new page has loaded enough. After it's enough, we remove the screenshot and it's done. Previously we started loading new page only after the gesture is done, i.e. the drawing area is invisible. Now it starts earlier, hence you can see the new page starting loading while it still shouldn't. There are some calls to prevent this on Apple side, we just need to implement them for CoordinatedDrawingArea really. Ah no, that comment was about 205650, sorry. Still not related to flashing though, it's about not blanking the drawing area on PSON until layer tree state is unfrozen. |