Tabs bar overflow arrows invisible

[somepaulo]

Describe the bug The tabs bar overflow arrows have disappeared a couple of updates ago.

To Reproduce

1. Open enough tabs to overflow the tabs bar.
2. Look for overflow arrows on either side of the tabs bar.
3. Not see them.

Expected behavior When the tabs bar overflows, arrows should appear on either side of the tabs bar (except the side that is fully scrolled to an end).

Screenshots How it is

How it should be

Setup information

• OS: Arch
• Installation method: manual
• Firefox version: 121.0.1
• Theme version: master
• Optional features enabled: none

Additional context The CSS applied to the arrow images (in tabsbar.css, line 59) is still used when the arrows should be displayed:

#scrollbutton-up:has(~ .scrollbox-clip[orient="horizontal"]) > .toolbarbutton-icon, .scrollbox-clip[orient="horizontal"] ~ #scrollbutton-down > .toolbarbutton-icon {
  visibility: hidden;
}

Adding this solves it for me:

#scrollbutton-up:has(~ .scrollbox-clip[orient="horizontal"]):not([disabled]) > .toolbarbutton-icon, .scrollbox-clip[orient="horizontal"] ~ #scrollbutton-down:not([disabled]) > .toolbarbutton-icon {
  visibility: visible;
}

[rafaelmardojai]

This is an intentional change to mimic libadwaita tabs. You still can click the fade to scroll, or use you mouse wheel.

[somepaulo]

OK then. Thanks for the explanation.