Instead of hardcoding icon names in the widget, use
arrow.none, arrow.up, arrow.down, arrow.left, arrow.right
styles and set the icon to use with -gtk-icon-source. This
lets themes change the icons that are used here, without
forcing all uses of pan-up/down/start/end-symbolic to be
treated the same.
Document this in the menubutton CSS docs.
Using GList is a bit lame, and makes the API more complicated to use
than necessary in the common case.
The only real use case for a GList is gtk_widget_add_mnemonic_label(),
and for that we can use the GValue-based API instead.
Fixes: #3343
This property was only used until now when
there was neither an icon nor a label set,
for arrow direction and popover placement.
Starting with Gtk4, a GtkMenuButton with a
label shows an arrow at the right (in LTR)
of the label. Allow disabling the arrow or
changing its direction using the direction
property, to have a way to restore a Gtk3-
like look or to improve popover placement.
Fixes#2811.
To build a better world sometimes means having to tear the old one down.
-- Alexander Pierce, "Captain America: The Winter Soldier"
ATK served us well for nearly 20 years, but the world has changed, and
GTK has changed with it. Now ATK is mostly a hindrance towards improving
the accessibility stack:
- it maps to a very specific implementation, AT-SPI, which is Linux and
Unix specific
- it requires implementing the same functionality in three different
layers of the stack: AT-SPI, ATK, and GTK
- only GTK uses it; every other Linux and Unix toolkit and application
talks to AT-SPI directly, including assistive technologies
Sadly, we cannot incrementally port GTK to a new accessibility stack;
since ATK insulates us entirely from the underlying implementation, we
cannot replace it piecemeal. Instead, we're going to remove everything
and then incrementally build on a clean slate:
- add an "accessible" interface, implemented by GTK objects directly,
which describe the accessible role and state changes for every UI
element
- add an "assistive technology context" to proxy a native accessibility
API, and assign it to every widget
- implement the AT context depending on the platform
For more information, see: https://gitlab.gnome.org/GNOME/gtk/-/issues/2833
After the :can-focus change in the previous commit, widgets
need to set suitable focus and grab_focus implementations
to implement the desired focus behavior.
This commit does that for all widgets.
It is enough to just set the parent (and make the parent
call gtk_native_check_resize in size_allocate).
This commit removes the relative_to argument to the
constructors of GtkPopover and GtkPopoverMenu, and
updates all callers.
Widgets are supposed to call gtk_widget_child_focus.
Calling internal focus_move function directly makes
us skip the childs ::focus() implementation, which
is where the magic happens.
Make gtk_popover_new_from_model() return a GtkPopoverMenu,
rename it to gtk_popover_menu_new_from_model() and add
a relative_to argument to gtk_popover_menu_new().
Update all callers.
Make GtkMenuButton a widget that has a
toggle button, instead of deriving from it.
We give it icon-name and label properties,
to let people do what they expect to do
with menu buttons.
