Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: b6c85acbb9b05bac00f9eace59c02ec375146005
https://github.com/WebKit/WebKit/commit/b6c85acbb9b05bac00f9eace59c02ec375146005
Author: Tyler Wilcock <[email protected]>
Date: 2026-04-13 (Mon, 13 Apr 2026)
Changed paths:
A LayoutTests/accessibility/line-range-display-table-in-flex-expected.txt
A LayoutTests/accessibility/line-range-display-table-in-flex.html
M LayoutTests/platform/glib/TestExpectations
M LayoutTests/platform/ios/TestExpectations
M Source/WebCore/accessibility/AccessibilityObject.cpp
M Tools/WebKitTestRunner/InjectedBundle/ios/AccessibilityUIElementIOS.mm
Log Message:
-----------
AX: AccessibilityObject::lineRangeForPosition can loop infinitely with
display:table in flex container
https://bugs.webkit.org/show_bug.cgi?id=312173
rdar://174675164
Reviewed by Joshua Hoffman.
The while loop in lineRangeForPosition advances by calling
VisiblePosition::next(),
but if next() returns the same position (e.g., at a boundary in certain DOM
structures
like a display:table span inside a flex container), the loop never terminates.
Add a
check to break when no forward progress is made.
* LayoutTests/accessibility/line-range-display-table-in-flex-expected.txt:
Added.
* LayoutTests/accessibility/line-range-display-table-in-flex.html: Added.
* LayoutTests/platform/ios/TestExpectations:
* Source/WebCore/accessibility/AccessibilityObject.cpp:
(WebCore::AccessibilityObject::lineRangeForPosition const):
Canonical link: https://commits.webkit.org/311153@main
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