Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 528e93b089122e8b1a6b648835b26ce1f7d7409e
https://github.com/WebKit/WebKit/commit/528e93b089122e8b1a6b648835b26ce1f7d7409e
Author: Alex Christensen <achristen...@apple.com>
Date: 2025-01-06 (Mon, 06 Jan 2025)
Changed paths:
M Source/WebKit/UIProcess/Cocoa/WebPageProxyCocoa.mm
M Tools/TestWebKitAPI/Tests/WebKitCocoa/SiteIsolation.mm
Log Message:
-----------
[Site Isolation] WKWebView.underPageBackgroundColor should only be updated
from the main frame layer transaction
https://bugs.webkit.org/show_bug.cgi?id=285477
rdar://142440682
Reviewed by Simon Fraser.
In 283227@main I fixed a flicker of the Safari UI color by making
WKWebView.themeColor
only updated from the main frame process. I still saw a similar flicker
occasionally,
and I finally investigated a page that had it and found that Safari doesn't
only use
WKWebView.themeColor, but also WKWebView.underPageBackgroundColor. This
applies the
same fix to all the page color change updates from the layer transaction and
appends
to the test in a way that used to show the source of the flicker.
* Source/WebKit/UIProcess/Cocoa/WebPageProxyCocoa.mm:
(WebKit::WebPageProxy::didCommitLayerTree):
* Tools/TestWebKitAPI/Tests/WebKitCocoa/SiteIsolation.mm:
(TestWebKitAPI::TEST(SiteIsolation, ThemeColor)):
Canonical link: https://commits.webkit.org/288491@main
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