i3-incompatible hide_edge_borders interaction with stacked or tabbed containers

[thejan2009]

In sway, stacked or tabbed layout means that the view's titlebar will always be at least partially visible. In i3-wm the title can be hidden sometimes, for example when there's a single view and setting hide_edge_borders both. This makes the view essentially full-screen, minus the i3bar. But when a sibling view spawns, the tabbed or stacked titlebar becomes visible.

[RyanDwyer]

Are you sure about this? When using hide_edge_borders both, we always show the title bar even for linear containers, and I believe that was copied from i3.

[thejan2009]

Right, I seem to have missed another setting, default_border, configured to anything but normal. I have it set to pixel 1. The combination results in borders displaying only between tiled containers, and stacked or tiled containers with multiple direct children are the only ones that show their titlebars.

To reproduce, a minimal config:

default_border pixel 1
hide_edge_borders smart
workspace_layout tabbed

Then spawn a window, observe no borders or titlebars. Spawn another window, observe titlebar with two tabs. In sway, the titlebar is always present.