1243854 - Medium-length flings stop too soon

Status: RESOLVED FIXED

(Firefox for Android Graveyard :: Toolbar, defect)

Description

[Kartikaya Gupta (email:[e-mail])]

In bug 1229841 we tuned some prefs to make fling acceleration faster, but I think we also need to speed up individual fast-fling actions, specially because we also have high friction. Having fling curving speed up these flings will allow the user to travel a little bit further, and the high friction will still bring it to a solid stop.

I played around a little bit with the fling curve prefs and came up with the values below. Anthony, do you mind trying out these values in Fennec nightly (you can enter them on about:config, and restart the browser to take effect) and see how it feels? If it doesn't feel any worse I'd like to land it.

apz.fling_curve_function_x1: 0.59
apz.fling_curve_function_y1: 0.46
apz.fling_curve_function_x2: 0.05
apz.fling_curve_function_y2: 1.00

Comment 1

[Anthony Lam (:antlam) Find me, @antlam on Slack!]

Just tried this out on a 5X and it looks fine to me!

Thanks Kats!

Comment 2

[Kartikaya Gupta (email:[e-mail])]

Attachment: MozReview Request: Bug 1243854 - Tweak fling curving to make medium-length flings go a bit faster. r?snorp

Review commit: https://reviewboard.mozilla.org/r/33815/diff/#index_header
See other reviews: https://reviewboard.mozilla.org/r/33815/

Comment 3

[James Willcox (:snorp) ([e-mail]) (he/him)]

Comment on attachment 8716456 [details]
MozReview Request: Bug 1243854 - Tweak fling curving to make medium-length flings go a bit faster. r?snorp

https://reviewboard.mozilla.org/r/33815/#review30617

Comment 4

[Pulsebot]

https://hg.mozilla.org/integration/mozilla-inbound/rev/f8a4e2d7bf9f

Comment 5

[Carsten Book [:Tomcat]]

https://hg.mozilla.org/mozilla-central/rev/f8a4e2d7bf9f