Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 6639646de774d4333e28e4288a36c5627ac6388f
https://github.com/WebKit/WebKit/commit/6639646de774d4333e28e4288a36c5627ac6388f
Author: Nikolaos Mouchtaris <[email protected]>
Date: 2023-09-21 (Thu, 21 Sep 2023)
Changed paths:
M LayoutTests/accessibility/visible-character-range-width-changes.html
M LayoutTests/css3/scroll-snap/ios/scroll-snap-mainframe-pinch-out.html
M LayoutTests/editing/execCommand/insert-line-break-no-scroll.html
M LayoutTests/editing/selection/ios/autoscroll-with-top-content-inset-2.html
M LayoutTests/editing/selection/ios/autoscroll-with-top-content-inset.html
M LayoutTests/fast/dom/Element/body-scrollLeft-basics-quirks.html
M LayoutTests/fast/dom/Element/body-scrollTop-basics-quirks.html
M LayoutTests/fast/dom/Window/window-scroll-arguments.html
M LayoutTests/fast/dom/horizontal-scrollbar-when-dir-change.html
M LayoutTests/fast/dom/vertical-scrollbar-in-rtl-doesnt-fire-onscroll.html
M LayoutTests/fast/dom/vertical-scrollbar-when-dir-change.html
M LayoutTests/fast/events/no-scroll-on-input-text-selection.html
M
LayoutTests/fast/scrolling/ios/click-events-during-momentum-scroll-in-main-frame.html
M LayoutTests/fast/scrolling/ios/key-command-scroll-to-bottom.html
M LayoutTests/fast/scrolling/ios/key-command-scroll-to-top.html
M
LayoutTests/fast/scrolling/ios/scroll-to-beginning-and-end-of-document.html
M LayoutTests/fast/scrolling/latching/latching-and-wheel-events.html
M LayoutTests/fast/scrolling/latching/overflow-in-iframe-latching.html
M LayoutTests/fast/scrolling/programmatic-document-rtl-scroll.html
M
LayoutTests/fast/visual-viewport/client-coordinates-relative-to-layout-viewport.html
M LayoutTests/fast/visual-viewport/rtl-zoomed-rects.html
M LayoutTests/fullscreen/fullscreen-restore-scroll-position.html
M
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/abspos-contributes-to-static-parent-bounds-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/ancestor-change-heuristic-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/anchoring-with-bounds-clamping-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/anonymous-block-box-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/basic-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/descend-into-container-with-overflow-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/image-001-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/inline-block-002-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/inline-block-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/negative-layout-overflow-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/position-change-heuristic-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/position-change-heuristic-ib-split-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/position-change-heuristic-in-nested-scroll-box-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/reading-scroll-forces-anchoring-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/start-edge-in-block-layout-direction-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/subtree-exclusion-expected.txt
M
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/zero-scroll-offset-expected.txt
M LayoutTests/jquery/offset.html
M LayoutTests/platform/ios-wk2/TestExpectations
M LayoutTests/scrollingcoordinator/mac/latching/main-frame-back-swipe.html
M LayoutTests/scrollingcoordinator/mac/latching/simple-page-rubberbands.html
M Source/WebCore/dom/Document.cpp
M Source/WebCore/page/LocalFrameView.cpp
M Source/WebCore/page/LocalFrameView.h
M Source/WebCore/page/scrolling/ScrollAnchoringController.cpp
M Source/WebCore/page/scrolling/ScrollAnchoringController.h
M Source/WebCore/platform/ScrollableArea.h
Log Message:
-----------
Scroll anchoring: naive implementation of selectAnchorElement(), implement
updateScrollPosition(), hookup to layout
https://bugs.webkit.org/show_bug.cgi?id=243702
<rdar://98695739>
Reviewed by Simon Fraser.
For selectAnchorElement(), select the deepest child element that is within the
viewport bounds of the
frame view, or the first fully contined by the viewport bounds. For
updateScrollPosition()
calculate the change in offset and set the scroll position of the frame view if
necessary.
Finally, in FrameViewLayoutContext::performLayout(), hookup calls to
selectAnchorElement()
and updateScrollPosition() in the appropriate area.
* Source/WebCore/page/FrameView.cpp:
(WebCore::FrameView::willDoLayout):
(WebCore::FrameView::performPostLayoutTasks):
* Source/WebCore/page/Page.cpp:
(WebCore::Page::doAfterUpdateRendering):
* Source/WebCore/page/scrolling/ScrollAnchoringController.cpp:
(WebCore::ScrollAnchoringController::invalidateAnchorElement):
(WebCore::ScrollAnchoringController::computeOffset):
(WebCore::ScrollAnchoringController::selectAnchorElement):
(WebCore::ScrollAnchoringController::updateScrollPosition):
* Source/WebCore/page/scrolling/ScrollAnchoringController.h:
Canonical link: https://commits.webkit.org/268267@main
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