Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 612749994064996c08fb74d25e2088ea911916b0
https://github.com/WebKit/WebKit/commit/612749994064996c08fb74d25e2088ea911916b0
Author: Tyler Wilcock <[email protected]>
Date: 2023-10-11 (Wed, 11 Oct 2023)
Changed paths:
M Source/WebCore/accessibility/AccessibilityObject.cpp
Log Message:
-----------
AX: AccessibilityObject::listMarkerTextForNodeAndPosition(Node*, Position&&)
should not resolve a VisiblePosition if there is no marker
https://bugs.webkit.org/show_bug.cgi?id=262990
rdar://116780655
Reviewed by Chris Fleizach.
Resolving a Position to a VisiblePosition can be extraordinarily expensive, so
only do it when the marker actually
has text.
This saves 34k samples of 46k samples on this webpage:
https://developer.android.com/reference/android/view/View#attr_android:screenReaderFocusable
Making the page nearly instantaneously responsive, compared to completely
unresponsive for tens of seconds until VoiceOver
gives up entirely prior to this patch.
* Source/WebCore/accessibility/AccessibilityObject.cpp:
(WebCore::AccessibilityObject::listMarkerTextForNodeAndPosition):
Canonical link: https://commits.webkit.org/269208@main
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