Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 9e31d4e46121e45d2b95bef93b8515877deb57b5
https://github.com/WebKit/WebKit/commit/9e31d4e46121e45d2b95bef93b8515877deb57b5
Author: Antti Koivisto <[email protected]>
Date: 2023-02-07 (Tue, 07 Feb 2023)
Changed paths:
A
LayoutTests/http/tests/css/link-with-non-matching-media-slow-load-expected.html
A LayoutTests/http/tests/css/link-with-non-matching-media-slow-load.html
M Source/WebCore/page/FrameView.cpp
M Source/WebCore/testing/Internals.cpp
M Source/WebCore/testing/Internals.h
M Source/WebCore/testing/Internals.idl
Log Message:
-----------
<link> elements with media queries that do not affect the current page can be
delayed
https://bugs.webkit.org/show_bug.cgi?id=39455
rdar://102178226
Reviewed by Alan Baradlay.
We correctly deprioritize stylesheets with non-matching media attribute and
don't make them
rendering blocking. However they may still delay the visually non-empty
milestone. This delay
only comes into play if there is not enough visual content to trigger the
milestone otherwise.
This may end up delaying rendering until the non-matching stylesheets are fully
loaded on simple
pages.
*
LayoutTests/http/tests/css/link-with-non-matching-media-slow-load-expected.html:
Added.
* LayoutTests/http/tests/css/link-with-non-matching-media-slow-load.html: Added.
* Source/WebCore/page/FrameView.cpp:
(WebCore::FrameView::checkAndDispatchDidReachVisuallyNonEmptyState):
Ignore "very low" priority resources when determining if everything important
is loaded.
* Source/WebCore/testing/Internals.cpp:
(WebCore::Internals::isVisuallyNonEmpty const):
* Source/WebCore/testing/Internals.h:
* Source/WebCore/testing/Internals.idl:
Testing support.
Canonical link: https://commits.webkit.org/259963@main
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