Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 7630c1e345cce01b7e56dc6fc512d416f68cadd4
https://github.com/WebKit/WebKit/commit/7630c1e345cce01b7e56dc6fc512d416f68cadd4
Author: Simon Fraser <[email protected]>
Date: 2025-10-11 (Sat, 11 Oct 2025)
Changed paths:
M Source/WebCore/dom/Document.cpp
M Source/WebCore/page/LargestContentfulPaintData.cpp
M Source/WebCore/page/LargestContentfulPaintData.h
Log Message:
-----------
[LCP] Various minor LargestContentfulPaint optimizations
https://bugs.webkit.org/show_bug.cgi?id=300554
rdar://162440439
Reviewed by Tim Nguyen.
Cache the value of visualViewportRect().size() for each call to
`LargestContentfulPaintData::takePendingEntry()`,
since computing this is somewhat expensive.
Move `isExposedForPaintTiming()` checks to after the cheaper tests for set
membership.
Bail from `didPaintText` when the rect is empty, which is quite common in
Speedo.
`Document::enqueuePaintTimingEntryIfNeeded()` should only emit the log when
there is an LCP entry.
* Source/WebCore/dom/Document.cpp:
(WebCore::Document::enqueuePaintTimingEntryIfNeeded):
* Source/WebCore/page/LargestContentfulPaintData.cpp:
(WebCore::LargestContentfulPaintData::effectiveVisualArea):
(WebCore::LargestContentfulPaintData::potentiallyAddLargestContentfulPaintEntry):
(WebCore::LargestContentfulPaintData::takePendingEntry):
(WebCore::LargestContentfulPaintData::computeViewportIntersectionRect):
(WebCore::LargestContentfulPaintData::didLoadImage):
(WebCore::LargestContentfulPaintData::didPaintImage):
(WebCore::LargestContentfulPaintData::didPaintText):
* Source/WebCore/page/LargestContentfulPaintData.h:
Canonical link: https://commits.webkit.org/301363@main
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