The inspector, and other tools introspecting the widget structure like
gtk-builder-tool and Glade, may very well want to access the default
layout manager used by a class, especially if there are layout
properties involved, without having a whitelist of widget/layout manager
associations.
Some widgets have a well-defined layout manager created alongside their
own instance; if they do, we can handle the layout manager creation at
the GtkWidget instantiation.
The default value of GtkWidget::visible changed
from FALSE to TRUE from GTK 3 to 4. Make --3to4
deal with this by ensuring the visible property
is explicitly set, before simplifying.
We were using one Emoji chooser when triggered
via the context menu, and another one when
triggered via the icon.
Change things to always use the same Emoji
chooser instance.
We had code in gtkwindow.c that generated duplicate,
and defective, focus-change events, in the following
way:
- gtkmain.c generates a chain of focus-change events
for moving focus from one window to another
- gtkwindow.c catches a focus-in event in the middle
of this chain and sets itself as 'active'
- and then it proceeds to generate focus-change
events towards its own focus widget without a
related target
This is not necessary since we gtkmain.c already
generates a complete sequence of focus-change events.
So stop doing it.
This property has a 'smart' default that depends
on the class of the object we're creating. Take
that into account when deciding whether to omit
properties that are set to their default value.
If the recent section is empty, we want to hide
it, make its button insensitive, and select the
next section, initially. This was not working
properly, since nothing was ever setting the
section box to invisible.
It takes half a second on my system to initially
populate the Emoji chooser. That is too long. Do
the work in 8 millisecond chunks to give GTK a
chance to get some frames done.
We were hardcoding that GtkApplicationWindow only
has a single action group with prefix 'win', but
that is no longer the case. Simply use the code
for the general widget case that can handle multiple
action groups.
I was a little overzealous when going
for the new default handling here. We
can't switch to gtk_widget_activate_default
before we actually handle the default.activate
action.
Display changes now happen exclusively through
the ::root and ::unroot vfuncs. Third parties
can observe display changes by listening
for notify::root.
Export gtk_widget_root/unroot privately,
make them work on roots, and use them in
gtk_window_set_display. This gets us to a
single way to listen for display changes,
the root property.
