For some of the a11y states, calling gtk_accessible_reset_state
can change the type of the state value from boolean or tristate
to undefined.
Handle that, instead of throwing criticals.
Related: !4910
A typo resulted in the tab container widget being retrieved instead of
the tab widget. If an adjacent action widget was present, an infinite
loop occurred when switching tabs while a screen reader was enabled.
We need to free the queued context list in dispose
if we didn't get to register the contexts, and we also
need to free the list properly when we do get to
register them.
This showed up in valgrind as leaked GList structs.
The textbuffer test is calling into a function defined by the AT-SPI
accessibility backend. As of commit 4ddf1b70 we only build and run the
test on Linux, but the function in question isn't really
accessibility-related: it's just a serialization function.
If a context is not realized, calling gtk_at_spi_context_to_ref() will
return a null ref, because its path has not been initialized yet. This
was already done for all other cases in get_parent_context_ref(), but
was missing for the GtkStackPage case.
Fixes: https://gitlab.gnome.org/GNOME/gtk/-/issues/4944
The enum values are not compatible, and moreover, there is an extra
GTK_WRAP_NONE that PangoWrapMode doesn't have - thus,
pango_wrap_mode_to_string() will assert.
As far as I can tell, Orca does not read the wrap-mode key in the
dictionary for text attributes, anyway.
Fixes: #4869
The root accessible object is registered asynchronously, as it needs to
call a method on the AT-SPI registry daemon. This means we need to defer
registering the GtkAtSpiContext on the accessibility bus and in the
cache until after the registration is complete.
Fixes: #4825
We don't really need a bus-address property
that gets copied for every single object.
We keep the address in object data on the
display anyway. Just use it from there.
This gets rid of a nice amount of strdups
at startup.
Only send selection-changed events when we either
had a non-empty selection before, or have one now.
This should help orca speak the right things, and
not the wrong things.
Related: #3549
Orca relies on these to keep track of the focus location,
ignoring the focused state. With this change, orca can
once again speak text in entries as I type.
Orca ignores events unless the object is inside an object
with role window and states ACTIVE and SHOWING. To arrange
for this, introduce a new ACTIVE platform state, and set it
for windows when they are active.
This gets orca to be a lot more talkative.
When falling back to g_get_prgname(), we need to take into account that
the program name may be the full argv[0] path, which will end up messing
the DBus object path.
Use the same initial check for the accessible object type that we use
when connecting the signal, in case we try to disconnect signals on
different widgets. Additionally, check before accessing data that might
have already been removed.
Fixes: #3403
The accessibility bus might not be available, and if it isn't the case,
it means something has failed at a level where the user can't do much
about it. There's no need to emit a critical warning.
If the accessible object is hidden, we can skip the emission of the
AddAccessible and RemoveAccessible signals on the cache, as those
objects won't be visible in the accessibility tree.
The GtkAtSpiContext is responsible for removing itself from the root,
which will remove itself from the cache. Any code path that leads to the
GtkAtSpiContext instance being collected passes through the
unrealization phase, which will also unregister the context from the
accessibility bus and from the cache.
When falling back to using the program name to create a unique base path
for the objects on the accessibility bus we need to ensure that the name
is a valid DBus object path.
The AT-SPI cache interface is used to quickly populate the accessible
objects tree.
The tricky bit is ensuring that we emit change notifications on the
cache only when the cache is available, which means waiting until the
root is asynchronously registered.
