Request: Focus and outline

[luigifab]

What should be patched?

With GTK 3, the outline is not always displayed when a button, a scale or anything else has focus. It seems that is was displayed after pressing a navigation key (left, top, right, bottom, tab...) or?

In my theme, I replaced some outline with border. But this is not easy everywhere, because there is no border-offset (only outline-offset).

Screenshots

GTK 2.24:

GTK 3.24:

GTK 3.24 after pressing right/left arrows:

Commits

I don't know.

[luigifab]

I think this is focus-visible.

When application start, default value is FALSE. From GTK 3.24:

I will try to compile by adding a new env var here.

[lah7]

Some possibly related commits for focus-visible:

• https://github.com/GNOME/gtk/commit/2ba9c4b4a7d9ffc3161e2db1774743182a365d99
• https://github.com/GNOME/gtk/commit/c9bfd12d2fd0d67d87171719c9237abe941a73cd
• Blame: https://github.com/GNOME/gtk/blame/ab45bde94c7bbd140b12fa0dd6203f7b98d1a715/gtk/gtkwindow.c

---

I think it's more a theme thing. If it follows CSS style rules, outline-style, outline-offset and outline-color should control how it overlays the focused control, but some themes might use border which would affect spacing.

The second screenshot shows the outline very faint there, so the behaviour isn't broken. I confirm that random GTK apps under Breeze theme (Disks, file browser, Meld, jstest-gtk) do show the focused control initially (also confirmed in #65).

When I first saw this issue, I was thinking that it was a request to bring back this GTK+2 feel on focused controls:

A quick test on Ubuntu MATE 16.04 (GTK2), reveals nothing different with regards to initial focus behaviour. Pressing tab and/or arrow keys (depending what is focused) shows the outline, dependent on theme.