Closed
Bug 1426011
Opened 8 years ago
Closed 8 years ago
Poor arrow key scrolling on some websites
Categories
(Core :: Panning and Zooming, defect)
Tracking
()
RESOLVED
DUPLICATE
of bug 1383900
People
(Reporter: jed-development, Unassigned)
Details
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:59.0) Gecko/20100101 Firefox/59.0
Build ID: 20171218100313
Steps to reproduce:
Opened this link: https://www.onmsft.com/news/microsoft-launcher-4-4-update-brings-improvements-customization-options-for-beta-testers in the latest Nightly (Nightly v59.0a1 18-12-2017)
Actual results:
Tried scrolling using arrow keys on keyboard, really jaggy and not smooth at all. Using the scrollwheel on the mouse is perfectly smooth.
Expected results:
Should be as smooth as when scrolling using mouse.
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Comment 1•8 years ago
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Unfortunately the website has a keydown event listener registered on the root element, and so we cannot do async scrolling of the page the way we do with the mousewheel, because we need to run the event handler on the main-thread and wait for it to finish. That's what results in the janky scrolling. We have bug 1383900 on file for exploring potential solutions to this problem so I'm going to dupe this bug over to that.
Status: UNCONFIRMED → RESOLVED
Closed: 8 years ago
Resolution: --- → DUPLICATE
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Description
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