To clear the tooltip one is to set the tooltip to NULL. Though
the GtkEntryAccessible expect this tooltip to not be NULL in
gtk_entry_accessible_notify_gtk (already handling this case
in its _init).
Fixes:
** (epiphany:23914): CRITICAL **: atk_object_set_description: assertion
`description != NULL' failed
when epiphany g_object_set the entry icon tooltip to NULL (clear the
tooltip) in its find bar.
https://bugzilla.gnome.org/show_bug.cgi?id=695375
This commit exposes the get_type() functions and standard
headers for accessible implementations. This makes it possible
to derive from the GTK accessible implementations without
GType magic tricks. This is necessary, because we require the
a11y type hierarchy to be parallel to the widget type hierarchy.
So, if you derive a widget and need to adjust its a11y implementation,
you have to be able to derive its accessible implementation.
This commit probably exposes more than is absolutely necessary,
it also exposes accessibles of widgets that are unlikely candidates
for deriving from.
Expose GtkEntry icons as child accessibles of a GtkEntry, and provide
actions to simulate clicking them. Also, refactor the a11y children test
slightly to add a test.
https://bugzilla.gnome.org/show_bug.cgi?id=686347
Call _gtk_entry_get_display_text()from gtkentryaccessible.c to make
sure we always consider the actual text being displayed when
implementing the functions from the AtkTet interface.
https://bugzilla.gnome.org/show_bug.cgi?id=681591
