Disable mouse cursor during 2-finger scroll |
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Issue descriptionFrom puneetster@: We noticed that scrolling via touchpad was a lot more janky than via touchscreen. It turns out there is a lot more work to be done in the touchpad version because the cursor enters and exits objects on the screen and the javasript helpers get fired as a result. This doesn't happen for touch induced scroll because the cursor disappears during the scroll. warx@ can you look into how the cursor disable is done on touch scroll and do something similar for 2-finger scroll? If this ends up being simple we'll consider migration to 54.
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Sep 10 2016
Why not hide immediately when we begin the scroll gesture? Trying to trigger based on what's under the mouse will add a lot of complexity and I'm not seeing the value. I also REALLY don't want to special case this for Kevin.
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Sep 10 2016
Re: comment #1 adlr@ I don't see how to trigger a scroll while having the cursor on a tabstrip. Did you mean that the cursor should be hidden only if there is actual scrolling content to be scrolled? Re: Comment #2 - I agree not to do something special for Kevin. Hiding immediately when the scroll begins sounds right. If there is no content to be scrolled nothing should happen.
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Sep 11 2016
We can try it out for any content being under the cursor. I was just thinking it may be jarring if you try to scroll and nothing happens and your cursor disappears.
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Sep 11 2016
Let's try hiding immediately on a scroll even regardless of content. If folks find it jarring, we can build something more complex.
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Sep 12 2016
Turns out there are already protections in place to prevent the cases this is trying to prevent. |
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Comment 1 by adlr@chromium.org
, Sep 10 2016