Convert GtkToggleButton and its subclasses to CSS nodes.
Keep the button element name for when we want to render
these button-like (but with .toggle, .check and .radio
style classes for differentiation).
When we want to render them with an indicator, use distinct
element names checkbutton and radiobutton, and add a subnode
for the indicator with name check or radio.
All buttons should always be marked as :active when they are pressed.
That includes checkboxes (which are never activated in real code anyway,
so this change pretty much doesn't matter).
on:
- GtkToggleButton
- GtkCheckButton
- GtkRadioButton
- GtkModelButton
- GtkCellRendererToggle
- GtkCheckMenuItem
also update themes:
- Adwaita
- Raleigh
but not the win32 theme.
The new :checked state replaces :active for the actual checkedness of
the widgets and :active is now used exclusively while the button is being
pressed.
https://bugzilla.gnome.org/show_bug.cgi?id=733967
GtkCheckButton sets a different initial value for this property without
actually changing the declared default, and then relies on change notification
to update other properties (such as xalign). This, combined with glades
insistance on putting default values into ui files creates a situation
where we can't remove the redundant notification for ::draw-indicator
without causing lots of checkboxes to suddenly have centered labels.
This was seen in gnome-terminal, evolution, and other applications.
Therefore, keep the extra notification for now. This can be revisited
when we clean up the button hierarchy.
Try to do a better job of keeping example content
from being too wide. It is often rendered as <pre>
text so the only time we can wrap it is in the source.
It is best to full break lines at all punctuation and
to try to keep the width under 70 chars or so.
We've recently a number of classes wholly. For these cases,
move the headers and sources to gtk/deprecated/ and adjust
Makefiles and includes accordingly.
Affected classes:
GtkAction
GtkActionGroup
GtkActivatable
GtkIconFactory
GtkImageMenuItem
GtkRadioAction
GtkRecentAction
GtkStock
GtkToggleAction
GtkUIManager
Previously, we would avoid setting the prelight state flag when
button_down was TRUE and draw_indicator = FALSE, which is the normal
case of a GtkToggleButton during a mouse press.
It looks like this behavior was introduced a long time ago with commit
b94e6c0a80. I believe the reason was that
a widget in GTK2 couldn't have more than a single state (e.g.
hover+active) at a given moment.
https://bugzilla.gnome.org/show_bug.cgi?id=684038
