paint: Unify scrolling/pinch zoom behaviour across platforms#57642
Merged
servo-wpt-sync merged 1 commit intoweb-platform-tests:masterfrom Feb 9, 2026
Merged
paint: Unify scrolling/pinch zoom behaviour across platforms#57642servo-wpt-sync merged 1 commit intoweb-platform-tests:masterfrom
servo-wpt-sync merged 1 commit intoweb-platform-tests:masterfrom
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The review process for this patch is being conducted in the Servo project.
Signed-off-by: Euclid Ye <[email protected]>
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There has been a weird discrepancy between headed/headless test automation,
as stated in #42386 and servo/servo#42320 (comment).
The problem identified is more general than the intial issue:
we need to use CSS Pixel and Device Pixel consistently in these cases.
TOUCH_PAN_MIN_SCREEN_PX: this is tested on Android/Ohos,to match the pinch/scrolling threshold of Firefox/Chrome.
This is critical for test automation which always relies on CSS pixel.
Testing: Added which ensures pinch zoom does happen, and there is no crash for #42320.
Fixes: #42386
Reviewed in servo/servo#42387