Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 915f13f72d9a08b9e421aa33d64dbf8dc052c9f8
https://github.com/WebKit/WebKit/commit/915f13f72d9a08b9e421aa33d64dbf8dc052c9f8
Author: Tyler Wilcock <[email protected]>
Date: 2026-05-13 (Wed, 13 May 2026)
Changed paths:
M Source/WebCore/accessibility/AXCoreObject.cpp
M Source/WebCore/accessibility/AXCoreObject.h
Log Message:
-----------
AX: Generalize unignoredChildren's pre-order walk into
traverseDescendantsIncludingIgnored so it can be used elsewhere
https://bugs.webkit.org/show_bug.cgi?id=314745
rdar://176994349
Reviewed by Dominic Mazzoni.
Introduce AXCoreObject::traverseDescendantsIncludingIgnored, a
template helper that walks descendants in pre-order through the core
(includes-ignored) AX tree. The visitor is invoked once per descendant
and returns AXTraversalResult { SkipSubtree, Descend, Stop } to control
descent. The helper keeps a cached parent + siblings cursor across
sibling hops and subtree ascents, so a sibling step costs only
descendant->indexInParent() + a vector index, and an ascent reuses the
cached parent without a re-fetch.
Migrate unignoredChildren and hasUnignoredChild to use the helper.
This new helper is now also available for any future pre-order walk over
the core tree (e.g. an AXID-hashing walk that verifies the main-thread and
secondary-thread isolated-tree shapes match).
* Source/WebCore/accessibility/AXCoreObject.cpp:
(WebCore::AXCoreObject::unignoredChildren):
(WebCore::AXCoreObject::hasUnignoredChild):
* Source/WebCore/accessibility/AXCoreObject.h:
(WebCore::AXCoreObject::traverseDescendantsIncludingIgnored):
Canonical link: https://commits.webkit.org/313215@main
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