It is expected to be displayed below the content and expand
horizontally to fill the area.
It allows placing children at the start or the end. In addition, it
contains an internal centered box which is centered with respect to
the full width of the box, even if the children at either side take
up different amounts of space.
GtkActionBar as GtkBuildable
The gtk.action_bar.ActionBar implementation of the gtk.buildable.Buildable interface supports
adding children at the start or end sides by specifying “start” or “end” as
the “type” attribute of a <child> element, or setting the center widget
by specifying “center” value.
A gtk.action_bar.ActionBar's CSS node is called actionbar. It contains a revealer
subnode, which contains a box subnode, which contains two box subnodes at
the start and end of the action bar, with start and `end style classes
respectively, as well as a center node that represents the center child.
Each of the boxes contains children packed for that side.
gtk.action_bar.ActionBar is designed to present contextual actions.
It is expected to be displayed below the content and expand horizontally to fill the area.
It allows placing children at the start or the end. In addition, it contains an internal centered box which is centered with respect to the full width of the box, even if the children at either side take up different amounts of space.
GtkActionBar as GtkBuildable
The gtk.action_bar.ActionBar implementation of the gtk.buildable.Buildable interface supports adding children at the start or end sides by specifying “start” or “end” as the “type” attribute of a <child> element, or setting the center widget by specifying “center” value.
CSS nodes
actionbar ╰── revealer ╰── box ├── box.start │ ╰── [start children] ├── [center widget] ╰── box.end ╰── [end children]A gtk.action_bar.ActionBar's CSS node is called actionbar. It contains a revealer subnode, which contains a box subnode, which contains two box subnodes at the start and end of the action bar, with start and `end style classes respectively, as well as a center node that represents the center child.
Each of the boxes contains children packed for that side.