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Issue 765928 link

Starred by 3 users
Status: Assigned
Owner:
adlr@chromium.org
Cc:
█ pyeh@chromium.org
█ charliemooney@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Chrome
Pri: 2
Type: Bug



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Two-finger flings frequently get cancelled on caroline

Project Member Reported by derat@chromium.org, Sep 16 2017 
Google Chrome	60.0.3112.114 (Official Build) (64-bit)
Platform	9592.94.0 (Official Build) stable-channel caroline
Firmware Version	Google_Caroline.7820.300.0

I'm seeing two-finger flings frequently get cancelled when scrolling Gmail conversations on this caroline device. Oddly, I'm having a lot of trouble reproducing the behavior in a Wikipedia tab. It seems like *maybe* hover detection is cancelling the gesture, although I'm not completely sure about that. (Does caroline support hover detection even though it doesn't have a keyboard backlight?)

It feels a bit like similar behavior on eve that I mentioned to you. I'm not sure whether the thumb on my left hand, which is often near the upper-left corner of the touchpad, could be involved while I'm performing the gesture with my right. I'm also able to repro this when my left hand isn't anywhere near the touchpad, at least.

Here are some feedback reports after triggering this in Gmail:

http://feedback/#/Report/73356354389
http://feedback/#/Report/73356671736
http://feedback/#/Report/73356709957

And here's me failing to trigger it on Wikipedia: http://feedback/#/Report/73356872096

Comment 1 by derat@chromium.org, Sep 18 2017

Cc: charliemooney@chromium.org pyeh@chromium.org
From Paris over email:

"*two more instances to repro cancelled two-finger flings 
https://listnr.corp.google.com/report/73356709957

I replayed the following one (cast) though touch log viewer, noted there're blue and red tracks while scrolling up using two fingers which blue should refer to scroll and red is cursor movement. When red happened, I think the scrolling would be interrupted.
https://listnr.corp.google.com/report/73356671736

*failed to repro cancelled two-finger flings in a wikipedia article
https://listnr.corp.google.com/report/73356872096"
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