Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 9496a11100bf43260f5d23380e3a459903628580
https://github.com/WebKit/WebKit/commit/9496a11100bf43260f5d23380e3a459903628580
Author: Joanne Pan <[email protected]>
Date: 2026-04-14 (Tue, 14 Apr 2026)
Changed paths:
A
LayoutTests/pointerevents/ios/pointerdown-prevent-default-with-active-touch-listener-allows-page-scrolling-expected.txt
A
LayoutTests/pointerevents/ios/pointerdown-prevent-default-with-active-touch-listener-allows-page-scrolling.html
M Source/WebKit/WebProcess/WebPage/WebPage.cpp
Log Message:
-----------
Unable to interact with native PiP on Hulu.com
https://bugs.webkit.org/show_bug.cgi?id=311978
rdar://174187687
Reviewed by Abrar Rahman Protyasha.
The problem: PiP controls in separate windows were blocked because
setDefaultPrevented:YES caused the touch gesture recognizer to claim all
touches. This happened because handleTouchEvent returned handled=true for
pointerdown preventDefault() on both the preventable and unpreventable
touch paths indiscriminately.
The fix: By guarding the override with !touchEvent.canPreventNativeGestures(),
only the unpreventable path (passive / React listeners) reports
handled=true and sets panning flags to block scrolling.
The preventable path now returns the original handled=false which preserves PiP
touch
delivery through the existing deferring gesture mechanism.
*
LayoutTests/pointerevents/ios/pointerdown-prevent-default-with-active-touch-listener-allows-page-scrolling-expected.txt:
Added.
*
LayoutTests/pointerevents/ios/pointerdown-prevent-default-with-active-touch-listener-allows-page-scrolling.html:
Added.
* Source/WebKit/WebProcess/WebPage/WebPage.cpp:
(WebKit::handleTouchEvent):
Canonical link: https://commits.webkit.org/311261@main
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