It turns out that ATK_DEFINE_TYPE_WITH_CODE() is broken; it
tells GType that the class and instance size for the accessible
type are the same as for its parent type. Which is not true
if your instance struct has members such as 'description' here.
This was causing hard-to-track-down memory corruption, since
description and the GtkAccessible private pointer were sharing
the same memory location.
We were ignoring the focus ring padding, and we were incorrectly setting
handle_x to padding.left, while the draw handler already takes padding
into account while redrawing.
https://bugzilla.gnome.org/show_bug.cgi?id=645134
GtkSwitch was listening for Space/Enter keyreleases itself, instead
of providing an 'activate' action signal, like e.g GtkButton. As a
side-effect, this fixes
https://bugzilla.gnome.org/show_bug.cgi?id=643321
Thomas Wood pointed out that the original MxGtkLightSwitch widget upon
which I based the behaviour of GtkSwitch was not written by him; the
original authors are:
Joshua Lock
Robert Staudinger
Jussi Kukkonen
My apologies to all of them.
The GtkSwitch widget is a simple UI control that has two states: on and
off. Toggling between the states is possible by clicking the widget or
by dragging the handle.
https://bugzilla.gnome.org/show_bug.cgi?id=634987
