1270606 - Honor GTK3 scrollbar preference of system

Status: UNCONFIRMED

(Core :: Widget: Gtk, defect, P5)

Description

[ccprog]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:46.0) Gecko/20100101 Firefox/46.0
Build ID: 20160421124000

Steps to reproduce:

This is a follow-up to https://bugzilla.mozilla.org/show_bug.cgi?id=803633 for GTK3.

With update to Firefox 46 (and consequently GTK3), the behavior of the scrollbar no longer follows the gtk-primary-button-warps-slider system (theme) setting.

System is a Linux Mint Debian Edition 2, Cinnamon 2.80 or 3.0 (tested with both versions).
GTK version is 3.14.5

While the theme I use not explicitely states gtk-primary-button-warps-slider = false, the desktop behavior is consistent with it, i. e. a click on the scrollbar with the primary button scrolls one page.


Actual results:

Firefox warps to the mouse position instead.

Including the setting in ~/.themes/<mytheme>/gtk-3.0/settings.ini had no consequence.


Expected results:

Up to Firefox 45 clicking on the scrollbar had expected results.

Comment 1

[Karl Tomlinson (:karlt)]

[Settings]
gtk-primary-button-warps-slider=false

in ~/.config/gtk-3.0/settings.ini causes a primary click on the scrollbar trough scrolls one page in GTK+-3.16.7.

I doubt this report describes a bug in Gecko.

Comment 2

[Firefox Bug Husbandry Bot]

https://bugzilla.mozilla.org/show_bug.cgi?id=1552613